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5126 lines
116 KiB
C
5126 lines
116 KiB
C
/*
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| ee (easy editor)
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| An easy to use, simple screen oriented editor.
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| written by Hugh Mahon
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| THIS MATERIAL IS PROVIDED "AS IS". THERE ARE
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| NO WARRANTIES OF ANY KIND WITH REGARD TO THIS
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| MATERIAL, INCLUDING, BUT NOT LIMITED TO, THE
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| IMPLIED WARRANTIES OF MERCHANTABILITY AND
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| FITNESS FOR A PARTICULAR PURPOSE. Neither
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| Hewlett-Packard nor Hugh Mahon shall be liable
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| for errors contained herein, nor for
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| incidental or consequential damages in
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| connection with the furnishing, performance or
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| use of this material. Neither Hewlett-Packard
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| nor Hugh Mahon assumes any responsibility for
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| the use or reliability of this software or
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| documentation. This software and
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| documentation is totally UNSUPPORTED. There
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| is no support contract available. Hewlett-
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| Packard has done NO Quality Assurance on ANY
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| of the program or documentation. You may find
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| the quality of the materials inferior to
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| supported materials.
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| This software is not a product of Hewlett-Packard, Co., or any
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| other company. No support is implied or offered with this software.
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| You've got the source, and you're on your own.
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| This software may be distributed under the terms of Larry Wall's
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| Artistic license, a copy of which is included in this distribution.
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| This notice must be included with this software and any derivatives.
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| This editor was purposely developed to be simple, both in
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| interface and implementation. This editor was developed to
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| address a specific audience: the user who is new to computers
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| (especially UNIX).
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| ee is not aimed at technical users; for that reason more
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| complex features were intentionally left out. In addition,
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| ee is intended to be compiled by people with little computer
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| experience, which means that it needs to be small, relatively
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| simple in implementation, and portable.
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| This software and documentation contains
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| proprietary information which is protected by
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| copyright. All rights are reserved.
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*/
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#ifndef lint
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static const char rcsid[] =
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"$Id: ee.c,v 1.10 1998/04/30 12:49:11 ache Exp $";
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#endif /* not lint */
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char *ee_copyright_message =
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"Copyright (c) 1986, 1990, 1991, 1992, 1993, 1994, 1995, 1996 Hugh Mahon ";
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char *ee_long_notice[] = {
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"This software and documentation contains",
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"proprietary information which is protected by",
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"copyright. All rights are reserved."
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};
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char *version = "@(#) ee, version 1.3 $Revision: 1.10 $";
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#ifdef NCURSE
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#include "new_curse.h"
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#elif HAS_NCURSES
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#include <ncurses.h>
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#else
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#include <curses.h>
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#endif
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#ifdef HAS_CTYPE
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#include <ctype.h>
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#endif
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#include <err.h>
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#include <errno.h>
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#include <fcntl.h>
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#include <pwd.h>
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#include <signal.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#ifdef HAS_SYS_WAIT
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#include <sys/wait.h>
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#endif
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#ifdef HAS_STDARG
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#include <stdarg.h>
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#endif
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#ifdef HAS_STDLIB
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#include <stdlib.h>
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#endif
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#include <string.h>
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#ifdef HAS_UNISTD
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#include <unistd.h>
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#endif
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#ifndef NO_CATGETS
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#include <locale.h>
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#include <nl_types.h>
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nl_catd catalog;
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#else
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#define catgetlocal(a, b) (b)
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#endif /* NO_CATGETS */
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#ifndef SIGCHLD
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#define SIGCHLD SIGCLD
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#endif
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#define TAB 9
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#define max(a, b) (a > b ? a : b)
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#define min(a, b) (a < b ? a : b)
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/*
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| defines for type of data to show in info window
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*/
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#define CONTROL_KEYS 1
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#define COMMANDS 2
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struct text {
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char *line; /* line of characters */
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int line_number; /* line number */
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int line_length; /* actual number of characters in the line */
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int max_length; /* maximum number of characters the line handles */
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struct text *next_line; /* next line of text */
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struct text *prev_line; /* previous line of text */
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};
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struct text *first_line; /* first line of current buffer */
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struct text *dlt_line; /* structure for info on deleted line */
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struct text *curr_line; /* current line cursor is on */
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struct text *tmp_line; /* temporary line pointer */
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struct text *srch_line; /* temporary pointer for search routine */
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struct files { /* structure to store names of files to be edited*/
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char *name; /* name of file */
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struct files *next_name;
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};
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struct files *top_of_stack = NULL;
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int d_wrd_len; /* length of deleted word */
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int position; /* offset in bytes from begin of line */
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int scr_pos; /* horizontal position */
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int scr_vert; /* vertical position on screen */
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int scr_horz; /* horizontal position on screen */
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int tmp_vert, tmp_horz;
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int input_file; /* indicate to read input file */
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int recv_file; /* indicate reading a file */
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int edit; /* continue executing while true */
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int gold; /* 'gold' function key pressed */
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int fildes; /* file descriptor */
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int case_sen; /* case sensitive search flag */
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int last_line; /* last line for text display */
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int last_col; /* last column for text display */
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int horiz_offset = 0; /* offset from left edge of text */
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int clear_com_win; /* flag to indicate com_win needs clearing */
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int text_changes = FALSE; /* indicate changes have been made to text */
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int get_fd; /* file descriptor for reading a file */
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int info_window = TRUE; /* flag to indicate if help window visible */
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int info_type = CONTROL_KEYS; /* flag to indicate type of info to display */
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int expand_tabs = TRUE; /* flag for expanding tabs */
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int right_margin = 0; /* the right margin */
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int observ_margins = TRUE; /* flag for whether margins are observed */
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int shell_fork;
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int temp_stdin; /* temporary storage for stdin */
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int temp_stdout; /* temp storage for stdout descriptor */
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int temp_stderr; /* temp storage for stderr descriptor */
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int pipe_out[2]; /* pipe file desc for output */
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int pipe_in[2]; /* pipe file descriptors for input */
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int out_pipe; /* flag that info is piped out */
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int in_pipe; /* flag that info is piped in */
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int formatted = FALSE; /* flag indicating paragraph formatted */
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int auto_format = FALSE; /* flag for auto_format mode */
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int restricted = FALSE; /* flag to indicate restricted mode */
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int nohighlight = FALSE; /* turns off highlighting */
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int eightbit = TRUE; /* eight bit character flag */
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int local_LINES = 0; /* copy of LINES, to detect when win resizes */
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int local_COLS = 0; /* copy of COLS, to detect when win resizes */
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int curses_initialized = FALSE; /* flag indicating if curses has been started*/
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int emacs_keys_mode = FALSE; /* mode for if emacs key binings are used */
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char *point; /* points to current position in line */
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char *srch_str; /* pointer for search string */
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char *u_srch_str; /* pointer to non-case sensitive search */
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char *srch_1; /* pointer to start of suspect string */
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char *srch_2; /* pointer to next character of string */
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char *srch_3;
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char *in_file_name = NULL; /* name of input file */
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char *tmp_file; /* temporary file name */
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char d_char; /* deleted character */
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char *d_word; /* deleted word */
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char *d_line; /* deleted line */
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char in_string[513]; /* buffer for reading a file */
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char *print_command = "lpr"; /* string to use for the print command */
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char *start_at_line = NULL; /* move to this line at start of session*/
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int in; /* input character */
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FILE *temp_fp; /* temporary file pointer */
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FILE *bit_bucket; /* file pointer to /dev/null */
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char *table[] = {
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"^@", "^A", "^B", "^C", "^D", "^E", "^F", "^G", "^H", "\t", "^J",
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"^K", "^L", "^M", "^N", "^O", "^P", "^Q", "^R", "^S", "^T", "^U",
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"^V", "^W", "^X", "^Y", "^Z", "^[", "^\\", "^]", "^^", "^_"
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};
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WINDOW *com_win;
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WINDOW *text_win;
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WINDOW *help_win;
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WINDOW *info_win;
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#if defined(__STDC__) || defined(__cplusplus)
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#define P_(s) s
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#else
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#define P_(s) ()
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#endif
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/*
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| The following structure allows menu items to be flexibly declared.
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| The first item is the string describing the selection, the second
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| is the address of the procedure to call when the item is selected,
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| and the third is the argument for the procedure.
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| For those systems with i18n, the string should be accompanied by a
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| catalog number. The 'int *' should be replaced with 'void *' on
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| systems with that type.
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| The first menu item will be the title of the menu, with NULL
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| parameters for the procedure and argument, followed by the menu items.
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| If the procedure value is NULL, the menu item is displayed, but no
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| procedure is called when the item is selected. The number of the
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| item will be returned. If the third (argument) parameter is -1, no
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| argument is given to the procedure when it is called.
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*/
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struct menu_entries {
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char *item_string;
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int (*procedure)P_((struct menu_entries *));
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struct menu_entries *ptr_argument;
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int (*iprocedure)P_((int));
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void (*nprocedure)P_((void));
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unsigned int argument;
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};
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int main P_((int argc, char *argv[]));
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char *resiz_line P_((int factor, struct text *rline, int rpos));
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void insert P_((int character));
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void delete P_((int disp));
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void scanline P_((char *pos));
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int tabshift P_((int temp_int));
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int out_char P_((WINDOW *window, int character, int column));
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int len_char P_((int character, int column));
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void draw_line P_((int vertical, int horiz, char *ptr, int t_pos, int length));
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void insert_line P_((int disp));
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struct text *txtalloc P_((void));
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struct files *name_alloc P_((void));
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char *next_word P_((char *string));
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void prev_word P_((void));
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void control P_((void));
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void emacs_control P_((void));
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void bottom P_((void));
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void top P_((void));
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void nextline P_((void));
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void prevline P_((void));
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void left P_((int disp));
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void right P_((int disp));
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void find_pos P_((void));
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void up P_((void));
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void down P_((void));
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void function_key P_((void));
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void print_buffer P_((void));
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void command_prompt P_((void));
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void command P_((char *cmd_str1));
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int scan P_((char *line, int offset, int column));
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char *get_string P_((char *prompt, int advance));
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int compare P_((char *string1, char *string2, int sensitive));
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void goto_line P_((char *cmd_str));
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void midscreen P_((int line, char *pnt));
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void get_options P_((int numargs, char *arguments[]));
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void check_fp P_((void));
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void get_file P_((char *file_name));
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void get_line P_((int length, char *in_string, int *append));
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void draw_screen P_((void));
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void finish P_((void));
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int quit P_((int noverify));
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void edit_abort P_((int arg));
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void delete_text P_((void));
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int write_file P_((char *file_name));
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int search P_((int display_message));
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void search_prompt P_((void));
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void del_char P_((void));
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void undel_char P_((void));
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void del_word P_((void));
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void undel_word P_((void));
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void del_line P_((void));
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void undel_line P_((void));
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void adv_word P_((void));
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void move_rel P_((char *direction, int lines));
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void eol P_((void));
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void bol P_((void));
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void adv_line P_((void));
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void sh_command P_((char *string));
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void set_up_term P_((void));
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void resize_check P_((void));
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int menu_op P_((struct menu_entries *));
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void paint_menu P_((struct menu_entries menu_list[], int max_width, int max_height, int list_size, int top_offset, WINDOW *menu_win, int off_start, int vert_size));
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void help P_((void));
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void paint_info_win P_((void));
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void no_info_window P_((void));
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void create_info_window P_((void));
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int file_op P_((int arg));
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void shell_op P_((void));
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void leave_op P_((void));
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void redraw P_((void));
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int Blank_Line P_((struct text *test_line));
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void Format P_((void));
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void ee_init P_((void));
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void dump_ee_conf P_((void));
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void echo_string P_((char *string));
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void spell_op P_((void));
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void ispell_op P_((void));
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int first_word_len P_((struct text *test_line));
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void Auto_Format P_((void));
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void modes_op P_((void));
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char *is_in_string P_((char *string, char *substring));
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char *resolve_name P_((char *name));
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int restrict_mode P_((void));
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int unique_test P_((char *string, char *list[]));
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void strings_init P_((void));
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#undef P_
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/*
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| allocate space here for the strings that will be in the menu
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*/
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struct menu_entries modes_menu[] = {
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{"", NULL, NULL, NULL, NULL, 0},
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{"", NULL, NULL, NULL, NULL, -1},
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{"", NULL, NULL, NULL, NULL, -1},
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{"", NULL, NULL, NULL, NULL, -1},
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{"", NULL, NULL, NULL, NULL, -1},
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{"", NULL, NULL, NULL, NULL, -1},
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{"", NULL, NULL, NULL, NULL, -1},
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{"", NULL, NULL, NULL, NULL, -1},
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{"", NULL, NULL, NULL, NULL, -1},
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{"", NULL, NULL, NULL, dump_ee_conf, -1},
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{NULL, NULL, NULL, NULL, NULL, -1}
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};
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char *mode_strings[10];
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#define NUM_MODES_ITEMS 9
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struct menu_entries config_dump_menu[] = {
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{"", NULL, NULL, NULL, NULL, 0},
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{"", NULL, NULL, NULL, NULL, -1},
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{"", NULL, NULL, NULL, NULL, -1},
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{NULL, NULL, NULL, NULL, NULL, -1}
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};
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struct menu_entries leave_menu[] = {
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{"", NULL, NULL, NULL, NULL, -1},
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{"", NULL, NULL, NULL, finish, -1},
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{"", NULL, NULL, quit, NULL, TRUE},
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{NULL, NULL, NULL, NULL, NULL, -1}
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};
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#define READ_FILE 1
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#define WRITE_FILE 2
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#define SAVE_FILE 3
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struct menu_entries file_menu[] = {
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{"", NULL, NULL, NULL, NULL, -1},
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{"", NULL, NULL, file_op, NULL, READ_FILE},
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{"", NULL, NULL, file_op, NULL, WRITE_FILE},
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{"", NULL, NULL, file_op, NULL, SAVE_FILE},
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{"", NULL, NULL, NULL, print_buffer, -1},
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{NULL, NULL, NULL, NULL, NULL, -1}
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};
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struct menu_entries search_menu[] = {
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{"", NULL, NULL, NULL, NULL, 0},
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{"", NULL, NULL, NULL, search_prompt, -1},
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{"", NULL, NULL, search, NULL, TRUE},
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{NULL, NULL, NULL, NULL, NULL, -1}
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};
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struct menu_entries spell_menu[] = {
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{"", NULL, NULL, NULL, NULL, -1},
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{"", NULL, NULL, NULL, spell_op, -1},
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{"", NULL, NULL, NULL, ispell_op, -1},
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{NULL, NULL, NULL, NULL, NULL, -1}
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};
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struct menu_entries misc_menu[] = {
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{"", NULL, NULL, NULL, NULL, -1},
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{"", NULL, NULL, NULL, Format, -1},
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{"", NULL, NULL, NULL, shell_op, -1},
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{"", menu_op, spell_menu, NULL, NULL, -1},
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{NULL, NULL, NULL, NULL, NULL, -1}
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};
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struct menu_entries main_menu[] = {
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{"", NULL, NULL, NULL, NULL, -1},
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{"", NULL, NULL, NULL, leave_op, -1},
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{"", NULL, NULL, NULL, help, -1},
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{"", menu_op, file_menu, NULL, NULL, -1},
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{"", NULL, NULL, NULL, redraw, -1},
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{"", NULL, NULL, NULL, modes_op, -1},
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{"", menu_op, search_menu, NULL, NULL, -1},
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{"", menu_op, misc_menu, NULL, NULL, -1},
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{NULL, NULL, NULL, NULL, NULL, -1}
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};
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char *help_text[22];
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char *control_keys[5];
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char *emacs_help_text[22];
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char *emacs_control_keys[5];
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char *command_strings[5];
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char *commands[30];
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char *init_strings[20];
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#define MENU_WARN 1
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|
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#define max_alpha_char 36
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|
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/*
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| Declarations for strings for localization
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*/
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char *com_win_message; /* to be shown in com_win if no info window */
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char *no_file_string;
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char *ascii_code_str;
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char *printer_msg_str;
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char *command_str;
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char *file_write_prompt_str;
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char *file_read_prompt_str;
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char *char_str;
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char *unkn_cmd_str;
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char *non_unique_cmd_msg;
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char *line_num_str;
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char *line_len_str;
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char *current_file_str;
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char *usage0;
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char *usage1;
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char *usage2;
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char *usage3;
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char *usage4;
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char *file_is_dir_msg;
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char *new_file_msg;
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char *cant_open_msg;
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char *open_file_msg;
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char *file_read_fin_msg;
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char *reading_file_msg;
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char *read_only_msg;
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char *file_read_lines_msg;
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char *save_file_name_prompt;
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char *file_not_saved_msg;
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char *changes_made_prompt;
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char *yes_char;
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char *file_exists_prompt;
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char *create_file_fail_msg;
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char *writing_file_msg;
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char *file_written_msg;
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char *searching_msg;
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char *str_not_found_msg;
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|
char *search_prompt_str;
|
|
char *exec_err_msg;
|
|
char *continue_msg;
|
|
char *menu_cancel_msg;
|
|
char *menu_size_err_msg;
|
|
char *press_any_key_msg;
|
|
char *shell_prompt;
|
|
char *formatting_msg;
|
|
char *shell_echo_msg;
|
|
char *spell_in_prog_msg;
|
|
char *margin_prompt;
|
|
char *restricted_msg;
|
|
char *ON;
|
|
char *OFF;
|
|
char *HELP;
|
|
char *WRITE;
|
|
char *READ;
|
|
char *LINE;
|
|
char *FILE_str;
|
|
char *CHARACTER;
|
|
char *REDRAW;
|
|
char *RESEQUENCE;
|
|
char *AUTHOR;
|
|
char *VERSION;
|
|
char *CASE;
|
|
char *NOCASE;
|
|
char *EXPAND;
|
|
char *NOEXPAND;
|
|
char *Exit_string;
|
|
char *QUIT_string;
|
|
char *INFO;
|
|
char *NOINFO;
|
|
char *MARGINS;
|
|
char *NOMARGINS;
|
|
char *AUTOFORMAT;
|
|
char *NOAUTOFORMAT;
|
|
char *Echo;
|
|
char *PRINTCOMMAND;
|
|
char *RIGHTMARGIN;
|
|
char *HIGHLIGHT;
|
|
char *NOHIGHLIGHT;
|
|
char *EIGHTBIT;
|
|
char *NOEIGHTBIT;
|
|
char *EMACS_string;
|
|
char *NOEMACS_string;
|
|
char *conf_dump_err_msg;
|
|
char *conf_dump_success_msg;
|
|
char *conf_not_saved_msg;
|
|
char *ree_no_file_msg;
|
|
char *cancel_string;
|
|
char *menu_too_lrg_msg;
|
|
char *more_above_str, *more_below_str;
|
|
|
|
#ifndef __STDC__
|
|
#ifndef HAS_STDLIB
|
|
extern char *malloc();
|
|
extern char *realloc();
|
|
extern char *getenv();
|
|
FILE *fopen(); /* declaration for open function */
|
|
#endif /* HAS_STDLIB */
|
|
#endif /* __STDC__ */
|
|
|
|
int
|
|
main(argc, argv) /* beginning of main program */
|
|
int argc;
|
|
char *argv[];
|
|
{
|
|
int counter;
|
|
|
|
for (counter = 1; counter < 24; counter++)
|
|
signal(counter, SIG_IGN);
|
|
|
|
signal(SIGCHLD, SIG_DFL);
|
|
signal(SIGSEGV, SIG_DFL);
|
|
signal(SIGINT, edit_abort);
|
|
|
|
d_char = 0;
|
|
d_word = malloc(150);
|
|
*d_word = (char) NULL;
|
|
d_line = NULL;
|
|
dlt_line = txtalloc();
|
|
dlt_line->line = d_line;
|
|
dlt_line->line_length = 1;
|
|
curr_line = first_line = txtalloc();
|
|
curr_line->line = point = malloc(10);
|
|
curr_line->line_length = 1;
|
|
curr_line->max_length = 10;
|
|
curr_line->prev_line = NULL;
|
|
curr_line->next_line = NULL;
|
|
curr_line->line_number = 1;
|
|
srch_str = NULL;
|
|
u_srch_str = NULL;
|
|
position = 1;
|
|
scr_pos =0;
|
|
scr_vert = 0;
|
|
scr_horz = 0;
|
|
bit_bucket = fopen("/dev/null", "w");
|
|
edit = TRUE;
|
|
gold = case_sen = FALSE;
|
|
shell_fork = TRUE;
|
|
strings_init();
|
|
ee_init();
|
|
if (argc > 0 )
|
|
get_options(argc, argv);
|
|
set_up_term();
|
|
if (right_margin == 0)
|
|
right_margin = COLS - 1;
|
|
if (top_of_stack == NULL)
|
|
{
|
|
if (restrict_mode())
|
|
{
|
|
wmove(com_win, 0, 0);
|
|
werase(com_win);
|
|
wprintw(com_win, ree_no_file_msg);
|
|
wrefresh(com_win);
|
|
edit_abort(0);
|
|
}
|
|
wprintw(com_win, no_file_string);
|
|
wrefresh(com_win);
|
|
}
|
|
else
|
|
check_fp();
|
|
|
|
clear_com_win = TRUE;
|
|
|
|
while(edit)
|
|
{
|
|
wrefresh(text_win);
|
|
in = wgetch(text_win);
|
|
if (in == -1)
|
|
exit(0);
|
|
|
|
resize_check();
|
|
|
|
if (clear_com_win)
|
|
{
|
|
clear_com_win = FALSE;
|
|
wmove(com_win, 0, 0);
|
|
werase(com_win);
|
|
if (!info_window)
|
|
{
|
|
wprintw(com_win, "%s", com_win_message);
|
|
}
|
|
wrefresh(com_win);
|
|
}
|
|
|
|
if (in > 255)
|
|
function_key();
|
|
else if ((in == '\10') || (in == 127))
|
|
delete(TRUE);
|
|
else if ((in > 31) || (in == 9))
|
|
insert(in);
|
|
else if ((in >= 0) && (in <= 31))
|
|
{
|
|
if (emacs_keys_mode)
|
|
emacs_control();
|
|
else
|
|
control();
|
|
}
|
|
}
|
|
return(0);
|
|
}
|
|
|
|
char *
|
|
resiz_line(factor, rline, rpos) /* resize the line to length + factor*/
|
|
int factor; /* resize factor */
|
|
struct text *rline; /* position in line */
|
|
int rpos;
|
|
{
|
|
char *rpoint;
|
|
int resiz_var;
|
|
|
|
rline->max_length += factor;
|
|
rpoint = rline->line = realloc(rline->line, rline->max_length );
|
|
for (resiz_var = 1 ; (resiz_var < rpos) ; resiz_var++)
|
|
rpoint++;
|
|
return(rpoint);
|
|
}
|
|
|
|
void
|
|
insert(character) /* insert character into line */
|
|
int character; /* new character */
|
|
{
|
|
int counter;
|
|
int value;
|
|
char *temp; /* temporary pointer */
|
|
char *temp2; /* temporary pointer */
|
|
|
|
if ((character == '\011') && (expand_tabs))
|
|
{
|
|
counter = len_char('\011', scr_horz);
|
|
for (; counter > 0; counter--)
|
|
insert(' ');
|
|
if (auto_format)
|
|
Auto_Format();
|
|
return;
|
|
}
|
|
text_changes = TRUE;
|
|
if ((curr_line->max_length - curr_line->line_length) < 5)
|
|
point = resiz_line(10, curr_line, position);
|
|
curr_line->line_length++;
|
|
temp = point;
|
|
counter = position;
|
|
while (counter < curr_line->line_length) /* find end of line */
|
|
{
|
|
counter++;
|
|
temp++;
|
|
}
|
|
temp++; /* increase length of line by one */
|
|
while (point < temp)
|
|
{
|
|
temp2=temp - 1;
|
|
*temp= *temp2; /* shift characters over by one */
|
|
temp--;
|
|
}
|
|
*point = character; /* insert new character */
|
|
wclrtoeol(text_win);
|
|
if (((character >= 0) && (character < ' ')) || (character >= 127)) /* check for TAB character*/
|
|
{
|
|
scr_pos = scr_horz += out_char(text_win, character, scr_horz);
|
|
point++;
|
|
position++;
|
|
}
|
|
else
|
|
{
|
|
waddch(text_win, character);
|
|
scr_pos = ++scr_horz;
|
|
point++;
|
|
position ++;
|
|
}
|
|
|
|
if ((observ_margins) && (right_margin < scr_pos))
|
|
{
|
|
counter = position;
|
|
while (scr_pos > right_margin)
|
|
prev_word();
|
|
if (scr_pos == 0)
|
|
{
|
|
while (position < counter)
|
|
right(TRUE);
|
|
}
|
|
else
|
|
{
|
|
counter -= position;
|
|
insert_line(TRUE);
|
|
for (value = 0; value < counter; value++)
|
|
right(TRUE);
|
|
}
|
|
}
|
|
|
|
if ((scr_horz - horiz_offset) > last_col)
|
|
{
|
|
horiz_offset += 8;
|
|
midscreen(scr_vert, point);
|
|
}
|
|
|
|
if ((auto_format) && (character == ' ') && (!formatted))
|
|
Auto_Format();
|
|
else if ((character != ' ') && (character != '\t'))
|
|
formatted = FALSE;
|
|
|
|
draw_line(scr_vert, scr_horz, point, position, curr_line->line_length);
|
|
}
|
|
|
|
void
|
|
delete(disp) /* delete character */
|
|
int disp;
|
|
{
|
|
char *tp;
|
|
char *temp2;
|
|
struct text *temp_buff;
|
|
int temp_vert;
|
|
int temp_pos;
|
|
|
|
if (point != curr_line->line) /* if not at beginning of line */
|
|
{
|
|
text_changes = TRUE;
|
|
temp2 = tp = point;
|
|
tp--;
|
|
point--;
|
|
if ((*tp >= '\000') && (*tp < ' ')) /* check for TAB */
|
|
scanline(tp);
|
|
else
|
|
--scr_horz;
|
|
scr_pos = scr_horz;
|
|
if (in == 8)
|
|
d_char = *point; /* save deleted character */
|
|
temp_pos = --position;
|
|
curr_line->line_length--;
|
|
while (temp_pos <= curr_line->line_length)
|
|
{
|
|
temp_pos++;
|
|
*tp= *temp2;
|
|
tp++;
|
|
temp2++;
|
|
}
|
|
if (scr_horz < horiz_offset)
|
|
{
|
|
horiz_offset -= 8;
|
|
midscreen(scr_vert, point);
|
|
}
|
|
}
|
|
else if (curr_line->prev_line != NULL)
|
|
{
|
|
text_changes = TRUE;
|
|
left(disp); /* go to previous line */
|
|
temp_buff = curr_line->next_line;
|
|
point = resiz_line(temp_buff->line_length, curr_line, position);
|
|
if (temp_buff->next_line != NULL)
|
|
temp_buff->next_line->prev_line = curr_line;
|
|
curr_line->next_line = temp_buff->next_line;
|
|
temp2 = temp_buff->line;
|
|
if (in == 8)
|
|
d_char = '\n';
|
|
tp = point;
|
|
temp_pos = 1;
|
|
while (temp_pos < temp_buff->line_length)
|
|
{
|
|
curr_line->line_length++;
|
|
temp_pos++;
|
|
*tp = *temp2;
|
|
tp++;
|
|
temp2++;
|
|
}
|
|
*tp = (char) NULL;
|
|
free(temp_buff->line);
|
|
free(temp_buff);
|
|
temp_buff = curr_line;
|
|
temp_vert = scr_vert;
|
|
scr_pos = scr_horz;
|
|
if (scr_vert < last_line)
|
|
{
|
|
wmove(text_win, scr_vert + 1, 0);
|
|
wdeleteln(text_win);
|
|
}
|
|
while ((temp_buff != NULL) && (temp_vert < last_line))
|
|
{
|
|
temp_buff = temp_buff->next_line;
|
|
temp_vert++;
|
|
}
|
|
if ((temp_vert == last_line) && (temp_buff != NULL))
|
|
{
|
|
tp = temp_buff->line;
|
|
wmove(text_win, last_line,0);
|
|
wclrtobot(text_win);
|
|
draw_line(last_line, 0, tp, 1, temp_buff->line_length);
|
|
wmove(text_win, scr_vert, (scr_horz - horiz_offset));
|
|
}
|
|
}
|
|
draw_line(scr_vert, scr_horz, point, position, curr_line->line_length);
|
|
formatted = FALSE;
|
|
}
|
|
|
|
void
|
|
scanline(pos) /* find the proper horizontal position for the pointer */
|
|
char *pos;
|
|
{
|
|
int temp;
|
|
char *ptr;
|
|
|
|
ptr = curr_line->line;
|
|
temp = 0;
|
|
while (ptr < pos)
|
|
{
|
|
if ((*ptr >= 0) && (*ptr <= 8))
|
|
temp += 2;
|
|
else if (*ptr == 9)
|
|
temp += tabshift(temp);
|
|
else if ((*ptr >= 10) && (*ptr <= 31))
|
|
temp += 2;
|
|
else if ((*ptr >= 32) && (*ptr < 127))
|
|
temp++;
|
|
else if (*ptr == 127)
|
|
temp += 2;
|
|
else if (!eightbit)
|
|
temp += 5;
|
|
else
|
|
temp++;
|
|
ptr++;
|
|
}
|
|
scr_horz = temp;
|
|
if ((scr_horz - horiz_offset) > last_col)
|
|
{
|
|
horiz_offset = (scr_horz - (scr_horz % 8)) - (COLS - 8);
|
|
midscreen(scr_vert, point);
|
|
}
|
|
else if (scr_horz < horiz_offset)
|
|
{
|
|
horiz_offset = max(0, (scr_horz - (scr_horz % 8)));
|
|
midscreen(scr_vert, point);
|
|
}
|
|
}
|
|
|
|
int
|
|
tabshift(temp_int) /* give the number of spaces to shift */
|
|
int temp_int;
|
|
{
|
|
int leftover;
|
|
|
|
leftover = ((temp_int + 1) % 8);
|
|
if (leftover == 0)
|
|
return (1);
|
|
else
|
|
return (9 - leftover);
|
|
}
|
|
|
|
int
|
|
out_char(window, character, column) /* output non-printing character */
|
|
WINDOW *window;
|
|
char character;
|
|
int column;
|
|
{
|
|
int i1, i2;
|
|
char *string;
|
|
char string2[8];
|
|
|
|
if (character == TAB)
|
|
{
|
|
i1 = tabshift(column);
|
|
for (i2 = 0;
|
|
(i2 < i1) && (((column+i2+1)-horiz_offset) < last_col); i2++)
|
|
{
|
|
waddch(window, ' ');
|
|
}
|
|
return(i1);
|
|
}
|
|
else if ((character >= '\0') && (character < ' '))
|
|
{
|
|
string = table[(int) character];
|
|
}
|
|
else if ((character < 0) || (character >= 127))
|
|
{
|
|
if (character == 127)
|
|
string = "^?";
|
|
else if (!eightbit)
|
|
{
|
|
sprintf(string2, "<%d>", (character < 0) ? (character + 256) : character);
|
|
string = string2;
|
|
}
|
|
else
|
|
{
|
|
waddch(window, (unsigned char)character );
|
|
return(1);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
waddch(window, (unsigned char)character);
|
|
return(1);
|
|
}
|
|
for (i2 = 0; (string[i2] != (char) NULL) && (((column+i2+1)-horiz_offset) < last_col); i2++)
|
|
waddch(window, string[i2]);
|
|
return(strlen(string));
|
|
}
|
|
|
|
int
|
|
len_char(character, column) /* return the length of the character */
|
|
char character;
|
|
int column; /* the column must be known to provide spacing for tabs */
|
|
{
|
|
int length;
|
|
|
|
if (character == '\t')
|
|
length = tabshift(column);
|
|
else if ((character >= 0) && (character < 32))
|
|
length = 2;
|
|
else if ((character >= 32) && (character <= 126))
|
|
length = 1;
|
|
else if (character == 127)
|
|
length = 2;
|
|
else if (((character > 126) || (character < 0)) && (!eightbit))
|
|
length = 5;
|
|
else
|
|
length = 1;
|
|
|
|
return(length);
|
|
}
|
|
|
|
void
|
|
draw_line(vertical, horiz, ptr, t_pos, length) /* redraw line from current position */
|
|
int vertical; /* current vertical position on screen */
|
|
int horiz; /* current horizontal position on screen */
|
|
char *ptr; /* pointer to line */
|
|
int t_pos; /* current position (offset in bytes) from bol */
|
|
int length; /* length (in bytes) of line */
|
|
{
|
|
int d; /* partial length of special or tab char to display */
|
|
char *temp; /* temporary pointer to position in line */
|
|
int abs_column; /* offset in screen units from begin of line */
|
|
int column; /* horizontal position on screen */
|
|
int row; /* vertical position on screen */
|
|
int posit; /* temporary position indicator within line */
|
|
|
|
abs_column = horiz;
|
|
column = horiz - horiz_offset;
|
|
row = vertical;
|
|
temp = ptr;
|
|
d = 0;
|
|
posit = t_pos;
|
|
if (column < 0)
|
|
{
|
|
wmove(text_win, row, 0);
|
|
wclrtoeol(text_win);
|
|
}
|
|
while (column < 0)
|
|
{
|
|
d = len_char(*temp, abs_column);
|
|
abs_column += d;
|
|
column += d;
|
|
posit++;
|
|
temp++;
|
|
}
|
|
wmove(text_win, row, column);
|
|
wclrtoeol(text_win);
|
|
while ((posit < length) && (column <= last_col))
|
|
{
|
|
if ((*temp < 32) || (*temp == 127))
|
|
{
|
|
column += len_char(*temp, abs_column);
|
|
abs_column += out_char(text_win, *temp, abs_column);
|
|
}
|
|
else
|
|
{
|
|
abs_column++;
|
|
column++;
|
|
waddch(text_win, *temp);
|
|
}
|
|
posit++;
|
|
temp++;
|
|
}
|
|
if (column < last_col)
|
|
wclrtoeol(text_win);
|
|
wmove(text_win, vertical, (horiz - horiz_offset));
|
|
}
|
|
|
|
void
|
|
insert_line(disp) /* insert new line */
|
|
int disp;
|
|
{
|
|
int temp_pos;
|
|
int temp_pos2;
|
|
char *temp;
|
|
char *extra;
|
|
struct text *temp_nod;
|
|
|
|
text_changes = TRUE;
|
|
wmove(text_win, scr_vert, (scr_horz - horiz_offset));
|
|
wclrtoeol(text_win);
|
|
temp_nod= txtalloc();
|
|
temp_nod->line = extra= malloc(10);
|
|
temp_nod->line_length = 1;
|
|
temp_nod->max_length = 10;
|
|
temp_nod->line_number = curr_line->line_number + 1;
|
|
temp_nod->next_line = curr_line->next_line;
|
|
if (temp_nod->next_line != NULL)
|
|
temp_nod->next_line->prev_line = temp_nod;
|
|
temp_nod->prev_line = curr_line;
|
|
curr_line->next_line = temp_nod;
|
|
temp_pos2 = position;
|
|
temp = point;
|
|
if (temp_pos2 < curr_line->line_length)
|
|
{
|
|
temp_pos = 1;
|
|
while (temp_pos2 < curr_line->line_length)
|
|
{
|
|
if ((temp_nod->max_length - temp_nod->line_length)< 5)
|
|
extra = resiz_line(10, temp_nod, temp_pos);
|
|
temp_nod->line_length++;
|
|
temp_pos++;
|
|
temp_pos2++;
|
|
*extra= *temp;
|
|
extra++;
|
|
temp++;
|
|
}
|
|
temp=point;
|
|
*temp = (char) NULL;
|
|
temp = resiz_line((1 - temp_nod->line_length), curr_line, position);
|
|
curr_line->line_length = 1 + temp - curr_line->line;
|
|
}
|
|
curr_line->line_length = position;
|
|
curr_line = temp_nod;
|
|
*extra = (char) NULL;
|
|
position = 1;
|
|
point= curr_line->line;
|
|
if (disp)
|
|
{
|
|
if (scr_vert < last_line)
|
|
{
|
|
scr_vert++;
|
|
wclrtoeol(text_win);
|
|
wmove(text_win, scr_vert, 0);
|
|
winsertln(text_win);
|
|
}
|
|
else
|
|
{
|
|
wmove(text_win, 0,0);
|
|
wdeleteln(text_win);
|
|
wmove(text_win, last_line,0);
|
|
wclrtobot(text_win);
|
|
}
|
|
scr_pos = scr_horz = 0;
|
|
if (horiz_offset)
|
|
{
|
|
horiz_offset = 0;
|
|
midscreen(scr_vert, point);
|
|
}
|
|
draw_line(scr_vert, scr_horz, point, position,
|
|
curr_line->line_length);
|
|
}
|
|
}
|
|
|
|
struct text *txtalloc() /* allocate space for line structure */
|
|
{
|
|
return((struct text *) malloc(sizeof( struct text)));
|
|
}
|
|
|
|
struct files *name_alloc() /* allocate space for file name list node */
|
|
{
|
|
return((struct files *) malloc(sizeof( struct files)));
|
|
}
|
|
|
|
char *next_word(string) /* move to next word in string */
|
|
char *string;
|
|
{
|
|
while ((*string != (char) NULL) && ((*string != 32) && (*string != 9)))
|
|
string++;
|
|
while ((*string != (char) NULL) && ((*string == 32) || (*string == 9)))
|
|
string++;
|
|
return(string);
|
|
}
|
|
|
|
void
|
|
prev_word() /* move to start of previous word in text */
|
|
{
|
|
if (position != 1)
|
|
{
|
|
if ((position != 1) && ((point[-1] == ' ') || (point[-1] == '\t')))
|
|
{ /* if at the start of a word */
|
|
while ((position != 1) && ((*point != ' ') && (*point != '\t')))
|
|
left(TRUE);
|
|
}
|
|
while ((position != 1) && ((*point == ' ') || (*point == '\t')))
|
|
left(TRUE);
|
|
while ((position != 1) && ((*point != ' ') && (*point != '\t')))
|
|
left(TRUE);
|
|
if ((position != 1) && ((*point == ' ') || (*point == '\t')))
|
|
right(TRUE);
|
|
}
|
|
else
|
|
left(TRUE);
|
|
}
|
|
|
|
void
|
|
control() /* use control for commands */
|
|
{
|
|
char *string;
|
|
|
|
if (in == 1) /* control a */
|
|
{
|
|
string = get_string(ascii_code_str, TRUE);
|
|
if (*string != (char) NULL)
|
|
{
|
|
in = atoi(string);
|
|
wmove(text_win, scr_vert, (scr_horz - horiz_offset));
|
|
insert(in);
|
|
}
|
|
free(string);
|
|
}
|
|
else if (in == 2) /* control b */
|
|
bottom();
|
|
else if (in == 3) /* control c */
|
|
{
|
|
command_prompt();
|
|
}
|
|
else if (in == 4) /* control d */
|
|
down();
|
|
else if (in == 5) /* control e */
|
|
search_prompt();
|
|
else if (in == 6) /* control f */
|
|
undel_char();
|
|
else if (in == 7) /* control g */
|
|
bol();
|
|
else if (in == 8) /* control h */
|
|
delete(TRUE);
|
|
else if (in == 9) /* control i */
|
|
;
|
|
else if (in == 10) /* control j */
|
|
insert_line(TRUE);
|
|
else if (in == 11) /* control k */
|
|
del_char();
|
|
else if (in == 12) /* control l */
|
|
left(TRUE);
|
|
else if (in == 13) /* control m */
|
|
insert_line(TRUE);
|
|
else if (in == 14) /* control n */
|
|
move_rel("d", max(5, (last_line - 5)));
|
|
else if (in == 15) /* control o */
|
|
eol();
|
|
else if (in == 16) /* control p */
|
|
move_rel("u", max(5, (last_line - 5)));
|
|
else if (in == 17) /* control q */
|
|
;
|
|
else if (in == 18) /* control r */
|
|
right(TRUE);
|
|
else if (in == 19) /* control s */
|
|
;
|
|
else if (in == 20) /* control t */
|
|
top();
|
|
else if (in == 21) /* control u */
|
|
up();
|
|
else if (in == 22) /* control v */
|
|
undel_word();
|
|
else if (in == 23) /* control w */
|
|
del_word();
|
|
else if (in == 24) /* control x */
|
|
search(TRUE);
|
|
else if (in == 25) /* control y */
|
|
del_line();
|
|
else if (in == 26) /* control z */
|
|
undel_line();
|
|
else if (in == 27) /* control [ (escape) */
|
|
{
|
|
menu_op(main_menu);
|
|
}
|
|
}
|
|
|
|
/*
|
|
| Emacs control-key bindings
|
|
*/
|
|
|
|
void
|
|
emacs_control()
|
|
{
|
|
char *string;
|
|
|
|
if (in == 1) /* control a */
|
|
bol();
|
|
else if (in == 2) /* control b */
|
|
left(TRUE);
|
|
else if (in == 3) /* control c */
|
|
{
|
|
command_prompt();
|
|
}
|
|
else if (in == 4) /* control d */
|
|
del_char();
|
|
else if (in == 5) /* control e */
|
|
eol();
|
|
else if (in == 6) /* control f */
|
|
right(TRUE);
|
|
else if (in == 7) /* control g */
|
|
move_rel("u", max(5, (last_line - 5)));
|
|
else if (in == 8) /* control h */
|
|
delete(TRUE);
|
|
else if (in == 9) /* control i */
|
|
;
|
|
else if (in == 10) /* control j */
|
|
undel_char();
|
|
else if (in == 11) /* control k */
|
|
del_line();
|
|
else if (in == 12) /* control l */
|
|
undel_line();
|
|
else if (in == 13) /* control m */
|
|
insert_line(TRUE);
|
|
else if (in == 14) /* control n */
|
|
down();
|
|
else if (in == 15) /* control o */
|
|
{
|
|
string = get_string(ascii_code_str, TRUE);
|
|
if (*string != (char) NULL)
|
|
{
|
|
in = atoi(string);
|
|
wmove(text_win, scr_vert, (scr_horz - horiz_offset));
|
|
insert(in);
|
|
}
|
|
free(string);
|
|
}
|
|
else if (in == 16) /* control p */
|
|
up();
|
|
else if (in == 17) /* control q */
|
|
;
|
|
else if (in == 18) /* control r */
|
|
undel_word();
|
|
else if (in == 19) /* control s */
|
|
;
|
|
else if (in == 20) /* control t */
|
|
top();
|
|
else if (in == 21) /* control u */
|
|
bottom();
|
|
else if (in == 22) /* control v */
|
|
move_rel("d", max(5, (last_line - 5)));
|
|
else if (in == 23) /* control w */
|
|
del_word();
|
|
else if (in == 24) /* control x */
|
|
search(TRUE);
|
|
else if (in == 25) /* control y */
|
|
search_prompt();
|
|
else if (in == 26) /* control z */
|
|
adv_word();
|
|
else if (in == 27) /* control [ (escape) */
|
|
{
|
|
menu_op(main_menu);
|
|
}
|
|
}
|
|
|
|
void
|
|
bottom() /* go to bottom of file */
|
|
{
|
|
while (curr_line->next_line != NULL)
|
|
curr_line = curr_line->next_line;
|
|
point = curr_line->line;
|
|
if (horiz_offset)
|
|
horiz_offset = 0;
|
|
position = 1;
|
|
midscreen(last_line, point);
|
|
scr_pos = scr_horz;
|
|
}
|
|
|
|
void
|
|
top() /* go to top of file */
|
|
{
|
|
while (curr_line->prev_line != NULL)
|
|
curr_line = curr_line->prev_line;
|
|
point = curr_line->line;
|
|
if (horiz_offset)
|
|
horiz_offset = 0;
|
|
position = 1;
|
|
midscreen(0, point);
|
|
scr_pos = scr_horz;
|
|
}
|
|
|
|
void
|
|
nextline() /* move pointers to start of next line */
|
|
{
|
|
curr_line = curr_line->next_line;
|
|
point = curr_line->line;
|
|
position = 1;
|
|
if (scr_vert == last_line)
|
|
{
|
|
wmove(text_win, 0,0);
|
|
wdeleteln(text_win);
|
|
wmove(text_win, last_line,0);
|
|
wclrtobot(text_win);
|
|
draw_line(last_line,0,point,1,curr_line->line_length);
|
|
}
|
|
else
|
|
scr_vert++;
|
|
}
|
|
|
|
void
|
|
prevline() /* move pointers to start of previous line*/
|
|
{
|
|
curr_line = curr_line->prev_line;
|
|
point = curr_line->line;
|
|
position = 1;
|
|
if (scr_vert == 0)
|
|
{
|
|
winsertln(text_win);
|
|
draw_line(0,0,point,1,curr_line->line_length);
|
|
}
|
|
else
|
|
scr_vert--;
|
|
while (position < curr_line->line_length)
|
|
{
|
|
position++;
|
|
point++;
|
|
}
|
|
}
|
|
|
|
void
|
|
left(disp) /* move left one character */
|
|
int disp;
|
|
{
|
|
if (point != curr_line->line) /* if not at begin of line */
|
|
{
|
|
point--;
|
|
position--;
|
|
scanline(point);
|
|
wmove(text_win, scr_vert, (scr_horz - horiz_offset));
|
|
scr_pos = scr_horz;
|
|
}
|
|
else if (curr_line->prev_line != NULL)
|
|
{
|
|
if (!disp)
|
|
{
|
|
curr_line = curr_line->prev_line;
|
|
point = curr_line->line + curr_line->line_length;
|
|
position = curr_line->line_length;
|
|
return;
|
|
}
|
|
position = 1;
|
|
prevline();
|
|
scanline(point);
|
|
scr_pos = scr_horz;
|
|
wmove(text_win, scr_vert, (scr_horz - horiz_offset));
|
|
}
|
|
}
|
|
|
|
void
|
|
right(disp) /* move right one character */
|
|
int disp;
|
|
{
|
|
if (position < curr_line->line_length)
|
|
{
|
|
point++;
|
|
position++;
|
|
scanline(point);
|
|
wmove(text_win, scr_vert, (scr_horz - horiz_offset));
|
|
scr_pos = scr_horz;
|
|
}
|
|
else if (curr_line->next_line != NULL)
|
|
{
|
|
if (!disp)
|
|
{
|
|
curr_line = curr_line->next_line;
|
|
point = curr_line->line;
|
|
position = 1;
|
|
return;
|
|
}
|
|
nextline();
|
|
scr_pos = scr_horz = 0;
|
|
if (horiz_offset)
|
|
{
|
|
horiz_offset = 0;
|
|
midscreen(scr_vert, point);
|
|
}
|
|
wmove(text_win, scr_vert, (scr_horz - horiz_offset));
|
|
position = 1;
|
|
}
|
|
}
|
|
|
|
void
|
|
find_pos() /* move to the same column as on other line */
|
|
{
|
|
scr_horz = 0;
|
|
position = 1;
|
|
while ((scr_horz < scr_pos) && (position < curr_line->line_length))
|
|
{
|
|
if (*point == 9)
|
|
scr_horz += tabshift(scr_horz);
|
|
else if ((*point >= '\0') && (*point < ' '))
|
|
scr_horz += 2;
|
|
else
|
|
scr_horz++;
|
|
position++;
|
|
point++;
|
|
}
|
|
if ((scr_horz - horiz_offset) > last_col)
|
|
{
|
|
horiz_offset = (scr_horz - (scr_horz % 8)) - (COLS - 8);
|
|
midscreen(scr_vert, point);
|
|
}
|
|
else if (scr_horz < horiz_offset)
|
|
{
|
|
horiz_offset = max(0, (scr_horz - (scr_horz % 8)));
|
|
midscreen(scr_vert, point);
|
|
}
|
|
wmove(text_win, scr_vert, (scr_horz - horiz_offset));
|
|
}
|
|
|
|
void
|
|
up() /* move up one line */
|
|
{
|
|
if (curr_line->prev_line != NULL)
|
|
{
|
|
prevline();
|
|
point = curr_line->line;
|
|
find_pos();
|
|
}
|
|
}
|
|
|
|
void
|
|
down() /* move down one line */
|
|
{
|
|
if (curr_line->next_line != NULL)
|
|
{
|
|
nextline();
|
|
find_pos();
|
|
}
|
|
}
|
|
|
|
void
|
|
function_key() /* process function key */
|
|
{
|
|
if (in == KEY_LEFT)
|
|
left(TRUE);
|
|
else if (in == KEY_RIGHT)
|
|
right(TRUE);
|
|
else if ( in == KEY_HOME)
|
|
top();
|
|
else if ( in == KEY_UP)
|
|
up();
|
|
else if (in == KEY_DOWN)
|
|
down();
|
|
else if (in == KEY_NPAGE)
|
|
move_rel("d", max( 5, (last_line - 5)));
|
|
else if (in == KEY_PPAGE)
|
|
move_rel("u", max(5, (last_line - 5)));
|
|
else if (in == KEY_DL)
|
|
del_line();
|
|
else if (in == KEY_DC)
|
|
del_char();
|
|
else if (in == KEY_BACKSPACE)
|
|
delete(TRUE);
|
|
else if (in == KEY_IL)
|
|
{ /* insert a line before current line */
|
|
insert_line(TRUE);
|
|
left(TRUE);
|
|
}
|
|
else if (in == KEY_F(1))
|
|
gold = !gold;
|
|
else if (in == KEY_F(2))
|
|
{
|
|
if (gold)
|
|
{
|
|
gold = FALSE;
|
|
undel_line();
|
|
}
|
|
else
|
|
undel_char();
|
|
}
|
|
else if (in == KEY_F(3))
|
|
{
|
|
if (gold)
|
|
{
|
|
gold = FALSE;
|
|
undel_word();
|
|
}
|
|
else
|
|
del_word();
|
|
}
|
|
else if (in == KEY_F(4))
|
|
{
|
|
if (gold)
|
|
{
|
|
gold = FALSE;
|
|
paint_info_win();
|
|
midscreen(scr_vert, point);
|
|
}
|
|
else
|
|
adv_word();
|
|
}
|
|
else if (in == KEY_F(5))
|
|
{
|
|
if (gold)
|
|
{
|
|
gold = FALSE;
|
|
search_prompt();
|
|
}
|
|
else
|
|
search(TRUE);
|
|
}
|
|
else if (in == KEY_F(6))
|
|
{
|
|
if (gold)
|
|
{
|
|
gold = FALSE;
|
|
bottom();
|
|
}
|
|
else
|
|
top();
|
|
}
|
|
else if (in == KEY_F(7))
|
|
{
|
|
if (gold)
|
|
{
|
|
gold = FALSE;
|
|
eol();
|
|
}
|
|
else
|
|
bol();
|
|
}
|
|
else if (in == KEY_F(8))
|
|
{
|
|
if (gold)
|
|
{
|
|
gold = FALSE;
|
|
command_prompt();
|
|
}
|
|
else
|
|
adv_line();
|
|
}
|
|
}
|
|
|
|
void
|
|
print_buffer()
|
|
{
|
|
char buffer[256];
|
|
|
|
sprintf(buffer, ">!%s", print_command);
|
|
wmove(com_win, 0, 0);
|
|
wclrtoeol(com_win);
|
|
wprintw(com_win, printer_msg_str, print_command);
|
|
wrefresh(com_win);
|
|
command(buffer);
|
|
}
|
|
|
|
void
|
|
command_prompt()
|
|
{
|
|
char *cmd_str;
|
|
int result;
|
|
|
|
info_type = COMMANDS;
|
|
paint_info_win();
|
|
cmd_str = get_string(command_str, TRUE);
|
|
if ((result = unique_test(cmd_str, commands)) != 1)
|
|
{
|
|
werase(com_win);
|
|
wmove(com_win, 0, 0);
|
|
if (result == 0)
|
|
wprintw(com_win, unkn_cmd_str, cmd_str);
|
|
else
|
|
wprintw(com_win, non_unique_cmd_msg);
|
|
|
|
wrefresh(com_win);
|
|
|
|
info_type = CONTROL_KEYS;
|
|
paint_info_win();
|
|
|
|
if (cmd_str != NULL)
|
|
free(cmd_str);
|
|
return;
|
|
}
|
|
command(cmd_str);
|
|
wrefresh(com_win);
|
|
wmove(text_win, scr_vert, (scr_horz - horiz_offset));
|
|
info_type = CONTROL_KEYS;
|
|
paint_info_win();
|
|
if (cmd_str != NULL)
|
|
free(cmd_str);
|
|
}
|
|
|
|
void
|
|
command(cmd_str1) /* process commands from keyboard */
|
|
char *cmd_str1;
|
|
{
|
|
char *cmd_str2 = NULL;
|
|
char *cmd_str = cmd_str1;
|
|
|
|
clear_com_win = TRUE;
|
|
if (compare(cmd_str, HELP, FALSE))
|
|
help();
|
|
else if (compare(cmd_str, WRITE, FALSE))
|
|
{
|
|
if (restrict_mode())
|
|
{
|
|
return;
|
|
}
|
|
cmd_str = next_word(cmd_str);
|
|
if (*cmd_str == (char) NULL)
|
|
{
|
|
cmd_str = cmd_str2 = get_string(file_write_prompt_str, TRUE);
|
|
}
|
|
tmp_file = resolve_name(cmd_str);
|
|
write_file(tmp_file);
|
|
if (tmp_file != cmd_str)
|
|
free(tmp_file);
|
|
}
|
|
else if (compare(cmd_str, READ, FALSE))
|
|
{
|
|
if (restrict_mode())
|
|
{
|
|
return;
|
|
}
|
|
cmd_str = next_word(cmd_str);
|
|
if (*cmd_str == (char) NULL)
|
|
{
|
|
cmd_str = cmd_str2 = get_string(file_read_prompt_str, TRUE);
|
|
}
|
|
tmp_file = cmd_str;
|
|
recv_file = TRUE;
|
|
tmp_file = resolve_name(cmd_str);
|
|
check_fp();
|
|
if (tmp_file != cmd_str)
|
|
free(tmp_file);
|
|
}
|
|
else if (compare(cmd_str, LINE, FALSE))
|
|
{
|
|
wmove(com_win, 0, 0);
|
|
wclrtoeol(com_win);
|
|
wprintw(com_win, line_num_str, curr_line->line_number);
|
|
wprintw(com_win, line_len_str, curr_line->line_length);
|
|
}
|
|
else if (compare(cmd_str, FILE_str, FALSE))
|
|
{
|
|
wmove(com_win, 0, 0);
|
|
wclrtoeol(com_win);
|
|
if (in_file_name == NULL)
|
|
wprintw(com_win, no_file_string);
|
|
else
|
|
wprintw(com_win, current_file_str, in_file_name);
|
|
}
|
|
else if ((*cmd_str >= '0') && (*cmd_str <= '9'))
|
|
goto_line(cmd_str);
|
|
else if (compare(cmd_str, CHARACTER, FALSE))
|
|
{
|
|
wmove(com_win, 0, 0);
|
|
wclrtoeol(com_win);
|
|
if (*point >= '\0')
|
|
wprintw(com_win, char_str, *point);
|
|
else
|
|
wprintw(com_win, char_str, (*point + 256));
|
|
}
|
|
else if (compare(cmd_str, REDRAW, FALSE))
|
|
redraw();
|
|
else if (compare(cmd_str, RESEQUENCE, FALSE))
|
|
{
|
|
tmp_line = first_line->next_line;
|
|
while (tmp_line != NULL)
|
|
{
|
|
tmp_line->line_number = tmp_line->prev_line->line_number + 1;
|
|
tmp_line = tmp_line->next_line;
|
|
}
|
|
}
|
|
else if (compare(cmd_str, AUTHOR, FALSE))
|
|
{
|
|
wmove(com_win, 0, 0);
|
|
wclrtoeol(com_win);
|
|
wprintw(com_win, "written by Hugh Mahon");
|
|
}
|
|
else if (compare(cmd_str, VERSION, FALSE))
|
|
{
|
|
wmove(com_win, 0, 0);
|
|
wclrtoeol(com_win);
|
|
wprintw(com_win, "%s", version);
|
|
}
|
|
else if (compare(cmd_str, CASE, FALSE))
|
|
case_sen = TRUE;
|
|
else if (compare(cmd_str, NOCASE, FALSE))
|
|
case_sen = FALSE;
|
|
else if (compare(cmd_str, EXPAND, FALSE))
|
|
expand_tabs = TRUE;
|
|
else if (compare(cmd_str, NOEXPAND, FALSE))
|
|
expand_tabs = FALSE;
|
|
else if (compare(cmd_str, Exit_string, FALSE))
|
|
finish();
|
|
else if (compare(cmd_str, QUIT_string, FALSE))
|
|
quit(0);
|
|
else if (*cmd_str == '!')
|
|
{
|
|
cmd_str++;
|
|
if ((*cmd_str == ' ') || (*cmd_str == 9))
|
|
cmd_str = next_word(cmd_str);
|
|
sh_command(cmd_str);
|
|
}
|
|
else if ((*cmd_str == '<') && (!in_pipe))
|
|
{
|
|
in_pipe = TRUE;
|
|
shell_fork = FALSE;
|
|
cmd_str++;
|
|
if ((*cmd_str == ' ') || (*cmd_str == '\t'))
|
|
cmd_str = next_word(cmd_str);
|
|
command(cmd_str);
|
|
in_pipe = FALSE;
|
|
shell_fork = TRUE;
|
|
}
|
|
else if ((*cmd_str == '>') && (!out_pipe))
|
|
{
|
|
out_pipe = TRUE;
|
|
cmd_str++;
|
|
if ((*cmd_str == ' ') || (*cmd_str == '\t'))
|
|
cmd_str = next_word(cmd_str);
|
|
command(cmd_str);
|
|
out_pipe = FALSE;
|
|
}
|
|
else
|
|
{
|
|
wmove(com_win, 0, 0);
|
|
wclrtoeol(com_win);
|
|
wprintw(com_win, unkn_cmd_str, cmd_str);
|
|
}
|
|
if (cmd_str2 != NULL)
|
|
free(cmd_str2);
|
|
}
|
|
|
|
int
|
|
scan(line, offset, column) /* determine horizontal position for get_string */
|
|
char *line;
|
|
int offset;
|
|
int column;
|
|
{
|
|
char *stemp;
|
|
int i;
|
|
int j;
|
|
|
|
stemp = line;
|
|
i = 0;
|
|
j = column;
|
|
while (i < offset)
|
|
{
|
|
i++;
|
|
j += len_char(*stemp, j);
|
|
stemp++;
|
|
}
|
|
return(j);
|
|
}
|
|
|
|
char *
|
|
get_string(prompt, advance) /* read string from input on command line */
|
|
char *prompt; /* string containing user prompt message */
|
|
int advance; /* if true, skip leading spaces and tabs */
|
|
{
|
|
char *string;
|
|
char *tmp_string;
|
|
char *nam_str;
|
|
char *g_point;
|
|
int tmp_int;
|
|
int g_horz, g_position, g_pos;
|
|
int esc_flag;
|
|
|
|
g_point = tmp_string = malloc(512);
|
|
wmove(com_win,0,0);
|
|
wclrtoeol(com_win);
|
|
waddstr(com_win, prompt);
|
|
wrefresh(com_win);
|
|
nam_str = tmp_string;
|
|
clear_com_win = TRUE;
|
|
g_horz = g_position = scan(prompt, strlen(prompt), 0);
|
|
g_pos = 0;
|
|
do
|
|
{
|
|
esc_flag = FALSE;
|
|
in = wgetch(com_win);
|
|
if (in == -1)
|
|
exit(0);
|
|
if (((in == 8) || (in == 127) || (in == KEY_BACKSPACE)) && (g_pos > 0))
|
|
{
|
|
tmp_int = g_horz;
|
|
g_pos--;
|
|
g_horz = scan(g_point, g_pos, g_position);
|
|
tmp_int = tmp_int - g_horz;
|
|
for (; 0 < tmp_int; tmp_int--)
|
|
{
|
|
if ((g_horz+tmp_int) < (last_col - 1))
|
|
{
|
|
waddch(com_win, '\010');
|
|
waddch(com_win, ' ');
|
|
waddch(com_win, '\010');
|
|
}
|
|
}
|
|
nam_str--;
|
|
}
|
|
else if ((in != 8) && (in != 127) && (in != '\n') && (in != '\r') && (in < 256))
|
|
{
|
|
if (in == '\026') /* control-v, accept next character verbatim */
|
|
{ /* allows entry of ^m, ^j, and ^h */
|
|
esc_flag = TRUE;
|
|
in = wgetch(com_win);
|
|
if (in == -1)
|
|
exit(0);
|
|
}
|
|
*nam_str = in;
|
|
g_pos++;
|
|
if (((in < ' ') || (in > 126)) && (g_horz < (last_col - 1)))
|
|
g_horz += out_char(com_win, in, g_horz);
|
|
else
|
|
{
|
|
g_horz++;
|
|
if (g_horz < (last_col - 1))
|
|
waddch(com_win, in);
|
|
}
|
|
nam_str++;
|
|
}
|
|
wrefresh(com_win);
|
|
if (esc_flag)
|
|
in = (char) NULL;
|
|
} while ((in != '\n') && (in != '\r'));
|
|
*nam_str = (char) NULL;
|
|
nam_str = tmp_string;
|
|
if (((*nam_str == ' ') || (*nam_str == 9)) && (advance))
|
|
nam_str = next_word(nam_str);
|
|
string = malloc(strlen(nam_str) + 1);
|
|
strcpy(string, nam_str);
|
|
free(tmp_string);
|
|
wrefresh(com_win);
|
|
return(string);
|
|
}
|
|
|
|
int
|
|
compare(string1, string2, sensitive) /* compare two strings */
|
|
char *string1;
|
|
char *string2;
|
|
int sensitive;
|
|
{
|
|
char *strng1;
|
|
char *strng2;
|
|
int tmp;
|
|
int equal;
|
|
|
|
strng1 = string1;
|
|
strng2 = string2;
|
|
tmp = 0;
|
|
if ((strng1 == NULL) || (strng2 == NULL) || (*strng1 == (char) NULL) || (*strng2 == (char) NULL))
|
|
return(FALSE);
|
|
equal = TRUE;
|
|
while (equal)
|
|
{
|
|
if (sensitive)
|
|
{
|
|
if (*strng1 != *strng2)
|
|
equal = FALSE;
|
|
}
|
|
else
|
|
{
|
|
if (toupper(*strng1) != toupper(*strng2))
|
|
equal = FALSE;
|
|
}
|
|
strng1++;
|
|
strng2++;
|
|
if ((*strng1 == (char) NULL) || (*strng2 == (char) NULL) || (*strng1 == ' ') || (*strng2 == ' '))
|
|
break;
|
|
tmp++;
|
|
}
|
|
return(equal);
|
|
}
|
|
|
|
void
|
|
goto_line(cmd_str)
|
|
char *cmd_str;
|
|
{
|
|
int number;
|
|
int i;
|
|
char *ptr;
|
|
char *direction;
|
|
struct text *t_line;
|
|
|
|
ptr = cmd_str;
|
|
i= 0;
|
|
while ((*ptr >='0') && (*ptr <= '9'))
|
|
{
|
|
i= i * 10 + (*ptr - '0');
|
|
ptr++;
|
|
}
|
|
number = i;
|
|
i = 0;
|
|
t_line = curr_line;
|
|
while ((t_line->line_number > number) && (t_line->prev_line != NULL))
|
|
{
|
|
i++;
|
|
t_line = t_line->prev_line;
|
|
direction = "u";
|
|
}
|
|
while ((t_line->line_number < number) && (t_line->next_line != NULL))
|
|
{
|
|
i++;
|
|
direction = "d";
|
|
t_line = t_line->next_line;
|
|
}
|
|
if ((i < 30) && (i > 0))
|
|
{
|
|
move_rel(direction, i);
|
|
}
|
|
else
|
|
{
|
|
curr_line = t_line;
|
|
point = curr_line->line;
|
|
position = 1;
|
|
midscreen((last_line / 2), point);
|
|
scr_pos = scr_horz;
|
|
}
|
|
wmove(com_win, 0, 0);
|
|
wclrtoeol(com_win);
|
|
wprintw(com_win, line_num_str, curr_line->line_number);
|
|
wmove(text_win, scr_vert, (scr_horz - horiz_offset));
|
|
}
|
|
|
|
void
|
|
midscreen(line, pnt) /* put current line in middle of screen */
|
|
int line;
|
|
char *pnt;
|
|
{
|
|
struct text *mid_line;
|
|
int i;
|
|
|
|
line = min(line, last_line);
|
|
mid_line = curr_line;
|
|
for (i = 0; ((i < line) && (curr_line->prev_line != NULL)); i++)
|
|
curr_line = curr_line->prev_line;
|
|
scr_vert = scr_horz = 0;
|
|
wmove(text_win, 0, 0);
|
|
draw_screen();
|
|
scr_vert = i;
|
|
curr_line = mid_line;
|
|
scanline(pnt);
|
|
wmove(text_win, scr_vert, (scr_horz - horiz_offset));
|
|
}
|
|
|
|
void
|
|
get_options(numargs, arguments) /* get arguments from command line */
|
|
int numargs;
|
|
char *arguments[];
|
|
{
|
|
char *buff;
|
|
int count;
|
|
struct files *temp_names;
|
|
char *name;
|
|
char *ptr;
|
|
|
|
/*
|
|
| see if editor was invoked as 'ree' (restricted mode)
|
|
*/
|
|
|
|
if (!(name = strrchr(arguments[0], '/')))
|
|
name = arguments[0];
|
|
else
|
|
name++;
|
|
if (!strcmp(name, "ree"))
|
|
restricted = TRUE;
|
|
|
|
top_of_stack = NULL;
|
|
input_file = FALSE;
|
|
recv_file = FALSE;
|
|
count = 1;
|
|
while (count < numargs)
|
|
{
|
|
buff = arguments[count];
|
|
if (!strcmp("-i", buff))
|
|
{
|
|
info_window = FALSE;
|
|
}
|
|
else if (!strcmp("-e", buff))
|
|
{
|
|
expand_tabs = FALSE;
|
|
}
|
|
else if (!strcmp("-h", buff))
|
|
{
|
|
nohighlight = TRUE;
|
|
}
|
|
else if (!strcmp("-?", buff))
|
|
{
|
|
fprintf(stderr, usage0, arguments[0]);
|
|
fprintf(stderr, usage1);
|
|
fprintf(stderr, usage2);
|
|
fprintf(stderr, usage3);
|
|
fprintf(stderr, usage4);
|
|
exit(1);
|
|
}
|
|
else if (*buff == '+')
|
|
{
|
|
buff++;
|
|
start_at_line = buff;
|
|
}
|
|
|
|
else
|
|
{
|
|
if (top_of_stack == NULL)
|
|
{
|
|
temp_names = top_of_stack = name_alloc();
|
|
}
|
|
else
|
|
{
|
|
temp_names->next_name = name_alloc();
|
|
temp_names = temp_names->next_name;
|
|
}
|
|
ptr = temp_names->name = malloc(strlen(buff) + 1);
|
|
while (*buff != (char) NULL)
|
|
{
|
|
*ptr = *buff;
|
|
buff++;
|
|
ptr++;
|
|
}
|
|
*ptr = (char) NULL;
|
|
temp_names->next_name = NULL;
|
|
input_file = TRUE;
|
|
recv_file = TRUE;
|
|
}
|
|
count++;
|
|
}
|
|
}
|
|
|
|
void
|
|
check_fp() /* open or close files according to flags */
|
|
{
|
|
int line_num;
|
|
int temp;
|
|
struct stat buf;
|
|
|
|
clear_com_win = TRUE;
|
|
tmp_vert = scr_vert;
|
|
tmp_horz = scr_horz;
|
|
tmp_line = curr_line;
|
|
if (input_file)
|
|
{
|
|
in_file_name = tmp_file = top_of_stack->name;
|
|
top_of_stack = top_of_stack->next_name;
|
|
}
|
|
temp = stat(tmp_file, &buf);
|
|
buf.st_mode &= ~07777;
|
|
if ((temp != -1) && (buf.st_mode != 0100000) && (buf.st_mode != 0))
|
|
{
|
|
wprintw(com_win, file_is_dir_msg, tmp_file);
|
|
wrefresh(com_win);
|
|
if (input_file)
|
|
{
|
|
quit(0);
|
|
return;
|
|
}
|
|
else
|
|
return;
|
|
}
|
|
if ((get_fd = open(tmp_file, O_RDONLY)) == -1)
|
|
{
|
|
wmove(com_win, 0, 0);
|
|
wclrtoeol(com_win);
|
|
if (input_file)
|
|
wprintw(com_win, new_file_msg, tmp_file);
|
|
else
|
|
wprintw(com_win, cant_open_msg, tmp_file);
|
|
wrefresh(com_win);
|
|
wmove(text_win, scr_vert, (scr_horz - horiz_offset));
|
|
wrefresh(text_win);
|
|
recv_file = FALSE;
|
|
input_file = FALSE;
|
|
return;
|
|
}
|
|
else
|
|
get_file(tmp_file);
|
|
|
|
recv_file = FALSE;
|
|
line_num = curr_line->line_number;
|
|
scr_vert = tmp_vert;
|
|
scr_horz = tmp_horz;
|
|
if (input_file)
|
|
curr_line= first_line;
|
|
else
|
|
curr_line = tmp_line;
|
|
point = curr_line->line;
|
|
draw_screen();
|
|
if (input_file)
|
|
{
|
|
input_file = FALSE;
|
|
if (start_at_line != NULL)
|
|
{
|
|
line_num = atoi(start_at_line) - 1;
|
|
move_rel("d", line_num);
|
|
line_num = 0;
|
|
start_at_line = NULL;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
wmove(com_win, 0, 0);
|
|
wclrtoeol(com_win);
|
|
text_changes = TRUE;
|
|
if ((tmp_file != NULL) && (*tmp_file != (char) NULL))
|
|
wprintw(com_win, file_read_fin_msg, tmp_file);
|
|
}
|
|
wrefresh(com_win);
|
|
wmove(text_win, scr_vert, (scr_horz - horiz_offset));
|
|
wrefresh(text_win);
|
|
}
|
|
|
|
void
|
|
get_file(file_name) /* read specified file into current buffer */
|
|
char *file_name;
|
|
{
|
|
int can_read; /* file has at least one character */
|
|
int length; /* length of line read by read */
|
|
int append; /* should text be appended to current line */
|
|
struct text *temp_line;
|
|
char ro_flag = FALSE;
|
|
|
|
if (recv_file) /* if reading a file */
|
|
{
|
|
wmove(com_win, 0, 0);
|
|
wclrtoeol(com_win);
|
|
wprintw(com_win, reading_file_msg, file_name);
|
|
if (access(file_name, 2)) /* check permission to write */
|
|
{
|
|
if ((errno == ENOTDIR) || (errno == EACCES) || (errno == EROFS) || (errno == ETXTBSY) || (errno == EFAULT))
|
|
{
|
|
wprintw(com_win, read_only_msg);
|
|
ro_flag = TRUE;
|
|
}
|
|
}
|
|
wrefresh(com_win);
|
|
}
|
|
if (curr_line->line_length > 1) /* if current line is not blank */
|
|
{
|
|
insert_line(FALSE);
|
|
left(FALSE);
|
|
append = FALSE;
|
|
}
|
|
else
|
|
append = TRUE;
|
|
can_read = FALSE; /* test if file has any characters */
|
|
while (((length = read(get_fd, in_string, 512)) != 0) && (length != -1))
|
|
{
|
|
can_read = TRUE; /* if set file has at least 1 character */
|
|
get_line(length, in_string, &append);
|
|
}
|
|
if ((can_read) && (curr_line->line_length == 1))
|
|
{
|
|
temp_line = curr_line->prev_line;
|
|
temp_line->next_line = curr_line->next_line;
|
|
if (temp_line->next_line != NULL)
|
|
temp_line->next_line->prev_line = temp_line;
|
|
if (curr_line->line != NULL)
|
|
free(curr_line->line);
|
|
free(curr_line);
|
|
curr_line = temp_line;
|
|
}
|
|
if (input_file) /* if this is the file to be edited display number of lines */
|
|
{
|
|
wmove(com_win, 0, 0);
|
|
wclrtoeol(com_win);
|
|
wprintw(com_win, file_read_lines_msg, in_file_name, curr_line->line_number);
|
|
if (ro_flag)
|
|
wprintw(com_win, read_only_msg);
|
|
wrefresh(com_win);
|
|
}
|
|
else if (can_read) /* not input_file and file is non-zero size */
|
|
text_changes = TRUE;
|
|
|
|
if (recv_file) /* if reading a file */
|
|
{
|
|
in = EOF;
|
|
}
|
|
}
|
|
|
|
void
|
|
get_line(length, in_string, append) /* read string and split into lines */
|
|
int length; /* length of string read by read */
|
|
char *in_string; /* string read by read */
|
|
int *append; /* TRUE if must append more text to end of current line */
|
|
{
|
|
char *str1;
|
|
char *str2;
|
|
int num; /* offset from start of string */
|
|
int char_count; /* length of new line (or added portion */
|
|
int temp_counter; /* temporary counter value */
|
|
struct text *tline; /* temporary pointer to new line */
|
|
int first_time; /* if TRUE, the first time through the loop */
|
|
|
|
str2 = in_string;
|
|
num = 0;
|
|
first_time = TRUE;
|
|
while (num < length)
|
|
{
|
|
if (!first_time)
|
|
{
|
|
if (num < length)
|
|
{
|
|
str2++;
|
|
num++;
|
|
}
|
|
}
|
|
else
|
|
first_time = FALSE;
|
|
str1 = str2;
|
|
char_count = 1;
|
|
/* find end of line */
|
|
while ((*str2 != '\n') && (num < length))
|
|
{
|
|
str2++;
|
|
num++;
|
|
char_count++;
|
|
}
|
|
if (!(*append)) /* if not append to current line, insert new one */
|
|
{
|
|
tline = txtalloc(); /* allocate data structure for next line */
|
|
tline->line_number = curr_line->line_number + 1;
|
|
tline->next_line = curr_line->next_line;
|
|
tline->prev_line = curr_line;
|
|
curr_line->next_line = tline;
|
|
if (tline->next_line != NULL)
|
|
tline->next_line->prev_line = tline;
|
|
curr_line = tline;
|
|
curr_line->line = point = (char *) malloc(char_count);
|
|
curr_line->line_length = char_count;
|
|
curr_line->max_length = char_count;
|
|
}
|
|
else
|
|
{
|
|
point = resiz_line(char_count, curr_line, curr_line->line_length);
|
|
curr_line->line_length += (char_count - 1);
|
|
}
|
|
for (temp_counter = 1; temp_counter < char_count; temp_counter++)
|
|
{
|
|
*point = *str1;
|
|
point++;
|
|
str1++;
|
|
}
|
|
*point = (char) NULL;
|
|
*append = FALSE;
|
|
if ((num == length) && (*str2 != '\n'))
|
|
*append = TRUE;
|
|
}
|
|
}
|
|
|
|
void
|
|
draw_screen() /* redraw the screen from current postion */
|
|
{
|
|
struct text *temp_line;
|
|
char *line_out;
|
|
int temp_vert;
|
|
|
|
temp_line = curr_line;
|
|
temp_vert = scr_vert;
|
|
wclrtobot(text_win);
|
|
while ((temp_line != NULL) && (temp_vert <= last_line))
|
|
{
|
|
line_out = temp_line->line;
|
|
draw_line(temp_vert, 0, line_out, 1, temp_line->line_length);
|
|
temp_vert++;
|
|
temp_line = temp_line->next_line;
|
|
}
|
|
wmove(text_win, temp_vert, 0);
|
|
wmove(text_win, scr_vert, (scr_horz - horiz_offset));
|
|
}
|
|
|
|
void
|
|
finish() /* prepare to exit edit session */
|
|
{
|
|
char *file_name = in_file_name;
|
|
|
|
/*
|
|
| changes made here should be reflected in the 'save'
|
|
| portion of file_op()
|
|
*/
|
|
|
|
if ((file_name == NULL) || (*file_name == (char) NULL))
|
|
file_name = get_string(save_file_name_prompt, TRUE);
|
|
|
|
if ((file_name == NULL) || (*file_name == (char) NULL))
|
|
{
|
|
wmove(com_win, 0, 0);
|
|
wprintw(com_win, file_not_saved_msg);
|
|
wclrtoeol(com_win);
|
|
wrefresh(com_win);
|
|
clear_com_win = TRUE;
|
|
return;
|
|
}
|
|
|
|
tmp_file = resolve_name(file_name);
|
|
if (tmp_file != file_name)
|
|
{
|
|
free(file_name);
|
|
file_name = tmp_file;
|
|
}
|
|
|
|
if (write_file(file_name))
|
|
{
|
|
text_changes = FALSE;
|
|
quit(0);
|
|
}
|
|
}
|
|
|
|
int
|
|
quit(noverify) /* exit editor */
|
|
int noverify;
|
|
{
|
|
char *ans;
|
|
|
|
touchwin(text_win);
|
|
wrefresh(text_win);
|
|
if ((text_changes) && (!noverify))
|
|
{
|
|
ans = get_string(changes_made_prompt, TRUE);
|
|
if (toupper(*ans) == toupper(*yes_char))
|
|
text_changes = FALSE;
|
|
else
|
|
return(0);
|
|
free(ans);
|
|
}
|
|
if (top_of_stack == NULL)
|
|
{
|
|
if (info_window)
|
|
wrefresh(info_win);
|
|
wrefresh(com_win);
|
|
resetty();
|
|
endwin();
|
|
putchar('\n');
|
|
exit(0);
|
|
}
|
|
else
|
|
{
|
|
delete_text();
|
|
recv_file = TRUE;
|
|
input_file = TRUE;
|
|
check_fp();
|
|
}
|
|
return(0);
|
|
}
|
|
|
|
void
|
|
edit_abort(arg)
|
|
int arg;
|
|
{
|
|
wrefresh(com_win);
|
|
resetty();
|
|
endwin();
|
|
putchar('\n');
|
|
exit(1);
|
|
}
|
|
|
|
void
|
|
delete_text()
|
|
{
|
|
while (curr_line->next_line != NULL)
|
|
curr_line = curr_line->next_line;
|
|
while (curr_line != first_line)
|
|
{
|
|
free(curr_line->line);
|
|
curr_line = curr_line->prev_line;
|
|
free(curr_line->next_line);
|
|
}
|
|
curr_line->next_line = NULL;
|
|
*curr_line->line = (char) NULL;
|
|
curr_line->line_length = 1;
|
|
curr_line->line_number = 1;
|
|
point = curr_line->line;
|
|
scr_pos = scr_vert = scr_horz = 0;
|
|
position = 1;
|
|
}
|
|
|
|
int
|
|
write_file(file_name)
|
|
char *file_name;
|
|
{
|
|
char cr;
|
|
char *tmp_point;
|
|
struct text *out_line;
|
|
int lines, charac;
|
|
int temp_pos;
|
|
int write_flag = TRUE;
|
|
|
|
charac = lines = 0;
|
|
if ((in_file_name == NULL) || strcmp(in_file_name, file_name))
|
|
{
|
|
if ((temp_fp = fopen(file_name, "r")))
|
|
{
|
|
tmp_point = get_string(file_exists_prompt, TRUE);
|
|
if (toupper(*tmp_point) == toupper(*yes_char))
|
|
write_flag = TRUE;
|
|
else
|
|
write_flag = FALSE;
|
|
fclose(temp_fp);
|
|
free(tmp_point);
|
|
}
|
|
}
|
|
|
|
clear_com_win = TRUE;
|
|
|
|
if (write_flag)
|
|
{
|
|
if ((temp_fp = fopen(file_name, "w")) == NULL)
|
|
{
|
|
clear_com_win = TRUE;
|
|
wmove(com_win,0,0);
|
|
wclrtoeol(com_win);
|
|
wprintw(com_win, create_file_fail_msg, file_name);
|
|
wrefresh(com_win);
|
|
return(FALSE);
|
|
}
|
|
else
|
|
{
|
|
wmove(com_win,0,0);
|
|
wclrtoeol(com_win);
|
|
wprintw(com_win, writing_file_msg, file_name);
|
|
wrefresh(com_win);
|
|
cr = '\n';
|
|
out_line = first_line;
|
|
while (out_line != NULL)
|
|
{
|
|
temp_pos = 1;
|
|
tmp_point= out_line->line;
|
|
while (temp_pos < out_line->line_length)
|
|
{
|
|
putc(*tmp_point, temp_fp);
|
|
tmp_point++;
|
|
temp_pos++;
|
|
}
|
|
charac += out_line->line_length;
|
|
out_line = out_line->next_line;
|
|
putc(cr, temp_fp);
|
|
lines++;
|
|
}
|
|
fclose(temp_fp);
|
|
wmove(com_win,0,0);
|
|
wclrtoeol(com_win);
|
|
wprintw(com_win, file_written_msg, file_name, lines, charac);
|
|
wrefresh(com_win);
|
|
return(TRUE);
|
|
}
|
|
}
|
|
else
|
|
return(FALSE);
|
|
}
|
|
|
|
int
|
|
search(display_message) /* search for string in srch_str */
|
|
int display_message;
|
|
{
|
|
int lines_moved;
|
|
int iter;
|
|
int found;
|
|
|
|
if ((srch_str == NULL) || (*srch_str == (char) NULL))
|
|
return(FALSE);
|
|
if (display_message)
|
|
{
|
|
wmove(com_win, 0, 0);
|
|
wclrtoeol(com_win);
|
|
wprintw(com_win, searching_msg);
|
|
wrefresh(com_win);
|
|
clear_com_win = TRUE;
|
|
}
|
|
lines_moved = 0;
|
|
found = FALSE;
|
|
srch_line = curr_line;
|
|
srch_1 = point;
|
|
if (position < curr_line->line_length)
|
|
srch_1++;
|
|
iter = position + 1;
|
|
while ((!found) && (srch_line != NULL))
|
|
{
|
|
while ((iter < srch_line->line_length) && (!found))
|
|
{
|
|
srch_2 = srch_1;
|
|
if (case_sen) /* if case sensitive */
|
|
{
|
|
srch_3 = srch_str;
|
|
while ((*srch_2 == *srch_3) && (*srch_3 != (char) NULL))
|
|
{
|
|
found = TRUE;
|
|
srch_2++;
|
|
srch_3++;
|
|
} /* end while */
|
|
}
|
|
else /* if not case sensitive */
|
|
{
|
|
srch_3 = u_srch_str;
|
|
while ((toupper(*srch_2) == *srch_3) && (*srch_3 != (char) NULL))
|
|
{
|
|
found = TRUE;
|
|
srch_2++;
|
|
srch_3++;
|
|
}
|
|
} /* end else */
|
|
if (!((*srch_3 == (char) NULL) && (found)))
|
|
{
|
|
found = FALSE;
|
|
if (iter < srch_line->line_length)
|
|
srch_1++;
|
|
iter++;
|
|
}
|
|
}
|
|
if (!found)
|
|
{
|
|
srch_line = srch_line->next_line;
|
|
if (srch_line != NULL)
|
|
srch_1 = srch_line->line;
|
|
iter = 1;
|
|
lines_moved++;
|
|
}
|
|
}
|
|
if (found)
|
|
{
|
|
if (display_message)
|
|
{
|
|
wmove(com_win, 0, 0);
|
|
wclrtoeol(com_win);
|
|
wrefresh(com_win);
|
|
}
|
|
if (lines_moved == 0)
|
|
{
|
|
while (position < iter)
|
|
right(TRUE);
|
|
}
|
|
else
|
|
{
|
|
if (lines_moved < 30)
|
|
{
|
|
move_rel("d", lines_moved);
|
|
while (position < iter)
|
|
right(TRUE);
|
|
}
|
|
else
|
|
{
|
|
curr_line = srch_line;
|
|
point = srch_1;
|
|
position = iter;
|
|
scanline(point);
|
|
scr_pos = scr_horz;
|
|
midscreen((last_line / 2), point);
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
if (display_message)
|
|
{
|
|
wmove(com_win, 0, 0);
|
|
wclrtoeol(com_win);
|
|
wprintw(com_win, str_not_found_msg, srch_str);
|
|
wrefresh(com_win);
|
|
}
|
|
wmove(text_win, scr_vert,(scr_horz - horiz_offset));
|
|
}
|
|
return(found);
|
|
}
|
|
|
|
void
|
|
search_prompt() /* prompt and read search string (srch_str) */
|
|
{
|
|
if (srch_str != NULL)
|
|
free(srch_str);
|
|
if ((u_srch_str != NULL) && (*u_srch_str != (char) NULL))
|
|
free(u_srch_str);
|
|
srch_str = get_string(search_prompt_str, FALSE);
|
|
gold = FALSE;
|
|
srch_3 = srch_str;
|
|
srch_1 = u_srch_str = malloc(strlen(srch_str) + 1);
|
|
while (*srch_3 != (char) NULL)
|
|
{
|
|
*srch_1 = toupper(*srch_3);
|
|
srch_1++;
|
|
srch_3++;
|
|
}
|
|
*srch_1 = (char) NULL;
|
|
search(TRUE);
|
|
}
|
|
|
|
void
|
|
del_char() /* delete current character */
|
|
{
|
|
in = 8; /* backspace */
|
|
if (position < curr_line->line_length) /* if not end of line */
|
|
{
|
|
position++;
|
|
point++;
|
|
scanline(point);
|
|
delete(TRUE);
|
|
}
|
|
else
|
|
{
|
|
right(FALSE);
|
|
delete(FALSE);
|
|
}
|
|
}
|
|
|
|
void
|
|
undel_char() /* undelete last deleted character */
|
|
{
|
|
if (d_char == '\n') /* insert line if last del_char deleted eol */
|
|
insert_line(TRUE);
|
|
else
|
|
{
|
|
in = d_char;
|
|
insert(in);
|
|
}
|
|
}
|
|
|
|
void
|
|
del_word() /* delete word in front of cursor */
|
|
{
|
|
int tposit;
|
|
int difference;
|
|
char *d_word2;
|
|
char *d_word3;
|
|
char tmp_char;
|
|
|
|
if (d_word != NULL)
|
|
free(d_word);
|
|
d_word = malloc(curr_line->line_length);
|
|
tmp_char = d_char;
|
|
d_word3 = point;
|
|
d_word2 = d_word;
|
|
tposit = position;
|
|
while ((tposit < curr_line->line_length) &&
|
|
((*d_word3 != ' ') && (*d_word3 != '\t')))
|
|
{
|
|
tposit++;
|
|
*d_word2 = *d_word3;
|
|
d_word2++;
|
|
d_word3++;
|
|
}
|
|
while ((tposit < curr_line->line_length) &&
|
|
((*d_word3 == ' ') || (*d_word3 == '\t')))
|
|
{
|
|
tposit++;
|
|
*d_word2 = *d_word3;
|
|
d_word2++;
|
|
d_word3++;
|
|
}
|
|
*d_word2 = (char) NULL;
|
|
d_wrd_len = difference = d_word2 - d_word;
|
|
d_word2 = point;
|
|
while (tposit < curr_line->line_length)
|
|
{
|
|
tposit++;
|
|
*d_word2 = *d_word3;
|
|
d_word2++;
|
|
d_word3++;
|
|
}
|
|
curr_line->line_length -= difference;
|
|
*d_word2 = (char) NULL;
|
|
draw_line(scr_vert, scr_horz,point,position,curr_line->line_length);
|
|
d_char = tmp_char;
|
|
text_changes = TRUE;
|
|
formatted = FALSE;
|
|
}
|
|
|
|
void
|
|
undel_word() /* undelete last deleted word */
|
|
{
|
|
int temp;
|
|
int tposit;
|
|
char *tmp_old_ptr;
|
|
char *tmp_space;
|
|
char *tmp_ptr;
|
|
char *d_word_ptr;
|
|
|
|
/*
|
|
| resize line to handle undeleted word
|
|
*/
|
|
if ((curr_line->max_length - (curr_line->line_length + d_wrd_len)) < 5)
|
|
point = resiz_line(d_wrd_len, curr_line, position);
|
|
tmp_ptr = tmp_space = malloc(curr_line->line_length + d_wrd_len);
|
|
d_word_ptr = d_word;
|
|
temp = 1;
|
|
/*
|
|
| copy d_word contents into temp space
|
|
*/
|
|
while (temp <= d_wrd_len)
|
|
{
|
|
temp++;
|
|
*tmp_ptr = *d_word_ptr;
|
|
tmp_ptr++;
|
|
d_word_ptr++;
|
|
}
|
|
tmp_old_ptr = point;
|
|
tposit = position;
|
|
/*
|
|
| copy contents of line from curent position to eol into
|
|
| temp space
|
|
*/
|
|
while (tposit < curr_line->line_length)
|
|
{
|
|
temp++;
|
|
tposit++;
|
|
*tmp_ptr = *tmp_old_ptr;
|
|
tmp_ptr++;
|
|
tmp_old_ptr++;
|
|
}
|
|
curr_line->line_length += d_wrd_len;
|
|
tmp_old_ptr = point;
|
|
*tmp_ptr = (char) NULL;
|
|
tmp_ptr = tmp_space;
|
|
tposit = 1;
|
|
/*
|
|
| now copy contents from temp space back to original line
|
|
*/
|
|
while (tposit < temp)
|
|
{
|
|
tposit++;
|
|
*tmp_old_ptr = *tmp_ptr;
|
|
tmp_ptr++;
|
|
tmp_old_ptr++;
|
|
}
|
|
*tmp_old_ptr = (char) NULL;
|
|
free(tmp_space);
|
|
draw_line(scr_vert, scr_horz, point, position, curr_line->line_length);
|
|
}
|
|
|
|
void
|
|
del_line() /* delete from cursor to end of line */
|
|
{
|
|
char *dl1;
|
|
char *dl2;
|
|
int tposit;
|
|
|
|
if (d_line != NULL)
|
|
free(d_line);
|
|
d_line = malloc(curr_line->line_length);
|
|
dl1 = d_line;
|
|
dl2 = point;
|
|
tposit = position;
|
|
while (tposit < curr_line->line_length)
|
|
{
|
|
*dl1 = *dl2;
|
|
dl1++;
|
|
dl2++;
|
|
tposit++;
|
|
}
|
|
dlt_line->line_length = 1 + tposit - position;
|
|
*dl1 = (char) NULL;
|
|
*point = (char) NULL;
|
|
curr_line->line_length = position;
|
|
wclrtoeol(text_win);
|
|
if (curr_line->next_line != NULL)
|
|
{
|
|
right(FALSE);
|
|
delete(FALSE);
|
|
}
|
|
text_changes = TRUE;
|
|
}
|
|
|
|
void
|
|
undel_line() /* undelete last deleted line */
|
|
{
|
|
char *ud1;
|
|
char *ud2;
|
|
int tposit;
|
|
|
|
insert_line(TRUE);
|
|
left(TRUE);
|
|
point = resiz_line(dlt_line->line_length, curr_line, position);
|
|
curr_line->line_length += dlt_line->line_length - 1;
|
|
ud1 = point;
|
|
ud2 = d_line;
|
|
tposit = 1;
|
|
while (tposit < dlt_line->line_length)
|
|
{
|
|
tposit++;
|
|
*ud1 = *ud2;
|
|
ud1++;
|
|
ud2++;
|
|
}
|
|
*ud1 = (char) NULL;
|
|
draw_line(scr_vert, scr_horz,point,position,curr_line->line_length);
|
|
}
|
|
|
|
void
|
|
adv_word() /* advance to next word */
|
|
{
|
|
while ((position < curr_line->line_length) && ((*point != 32) && (*point != 9)))
|
|
right(TRUE);
|
|
while ((position < curr_line->line_length) && ((*point == 32) || (*point == 9)))
|
|
right(TRUE);
|
|
}
|
|
|
|
void
|
|
move_rel(direction, lines) /* move relative to current line */
|
|
char *direction;
|
|
int lines;
|
|
{
|
|
int i;
|
|
char *tmp;
|
|
|
|
if (*direction == 'u')
|
|
{
|
|
scr_pos = 0;
|
|
while (position > 1)
|
|
left(TRUE);
|
|
for (i = 0; i < lines; i++)
|
|
{
|
|
up();
|
|
}
|
|
if ((last_line > 5) && ( scr_vert < 4))
|
|
{
|
|
tmp = point;
|
|
tmp_line = curr_line;
|
|
for (i= 0;(i<5)&&(curr_line->prev_line != NULL); i++)
|
|
{
|
|
up();
|
|
}
|
|
scr_vert = scr_vert + i;
|
|
curr_line = tmp_line;
|
|
point = tmp;
|
|
scanline(point);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
if ((position != 1) && (curr_line->next_line != NULL))
|
|
{
|
|
nextline();
|
|
scr_pos = scr_horz = 0;
|
|
if (horiz_offset)
|
|
{
|
|
horiz_offset = 0;
|
|
midscreen(scr_vert, point);
|
|
}
|
|
}
|
|
else
|
|
adv_line();
|
|
for (i = 1; i < lines; i++)
|
|
{
|
|
down();
|
|
}
|
|
if ((last_line > 10) && (scr_vert > (last_line - 5)))
|
|
{
|
|
tmp = point;
|
|
tmp_line = curr_line;
|
|
for (i=0; (i<5) && (curr_line->next_line != NULL); i++)
|
|
{
|
|
down();
|
|
}
|
|
scr_vert = scr_vert - i;
|
|
curr_line = tmp_line;
|
|
point = tmp;
|
|
scanline(point);
|
|
}
|
|
}
|
|
wmove(text_win, scr_vert, (scr_horz - horiz_offset));
|
|
}
|
|
|
|
void
|
|
eol() /* go to end of line */
|
|
{
|
|
if (position < curr_line->line_length)
|
|
{
|
|
while (position < curr_line->line_length)
|
|
right(TRUE);
|
|
}
|
|
else if (curr_line->next_line != NULL)
|
|
{
|
|
right(TRUE);
|
|
while (position < curr_line->line_length)
|
|
right(TRUE);
|
|
}
|
|
}
|
|
|
|
void
|
|
bol() /* move to beginning of line */
|
|
{
|
|
if (point != curr_line->line)
|
|
{
|
|
while (point != curr_line->line)
|
|
left(TRUE);
|
|
}
|
|
else if (curr_line->prev_line != NULL)
|
|
{
|
|
scr_pos = 0;
|
|
up();
|
|
}
|
|
}
|
|
|
|
void
|
|
adv_line() /* advance to beginning of next line */
|
|
{
|
|
if ((point != curr_line->line) || (scr_pos > 0))
|
|
{
|
|
while (position < curr_line->line_length)
|
|
right(TRUE);
|
|
right(TRUE);
|
|
}
|
|
else if (curr_line->next_line != NULL)
|
|
{
|
|
scr_pos = 0;
|
|
down();
|
|
}
|
|
}
|
|
|
|
void
|
|
sh_command(string) /* execute shell command */
|
|
char *string; /* string containing user command */
|
|
{
|
|
char *temp_point;
|
|
char *last_slash;
|
|
char *path; /* directory path to executable */
|
|
int parent; /* zero if child, child's pid if parent */
|
|
int value;
|
|
int return_val;
|
|
struct text *line_holder;
|
|
|
|
if (restrict_mode())
|
|
{
|
|
return;
|
|
}
|
|
|
|
if (!(path = getenv("SHELL")))
|
|
path = "/bin/sh";
|
|
last_slash = temp_point = path;
|
|
while (*temp_point != (char) NULL)
|
|
{
|
|
if (*temp_point == '/')
|
|
last_slash = ++temp_point;
|
|
else
|
|
temp_point++;
|
|
}
|
|
|
|
/*
|
|
| if in_pipe is true, then output of the shell operation will be
|
|
| read by the editor, and curses doesn't need to be turned off
|
|
*/
|
|
|
|
if (!in_pipe)
|
|
{
|
|
keypad(com_win, FALSE);
|
|
keypad(text_win, FALSE);
|
|
echo();
|
|
nl();
|
|
noraw();
|
|
resetty();
|
|
|
|
#ifndef NCURSE
|
|
endwin();
|
|
#endif
|
|
}
|
|
|
|
if (in_pipe)
|
|
{
|
|
pipe(pipe_in); /* create a pipe */
|
|
parent = fork();
|
|
if (!parent) /* if the child */
|
|
{
|
|
/*
|
|
| child process which will fork and exec shell command (if shell output is
|
|
| to be read by editor)
|
|
*/
|
|
in_pipe = FALSE;
|
|
/*
|
|
| redirect stdout to pipe
|
|
*/
|
|
temp_stdout = dup(1);
|
|
close(1);
|
|
dup(pipe_in[1]);
|
|
/*
|
|
| redirect stderr to pipe
|
|
*/
|
|
temp_stderr = dup(2);
|
|
close(2);
|
|
dup(pipe_in[1]);
|
|
close(pipe_in[1]);
|
|
/*
|
|
| child will now continue down 'if (!in_pipe)'
|
|
| path below
|
|
*/
|
|
}
|
|
else /* if the parent */
|
|
{
|
|
/*
|
|
| prepare editor to read from the pipe
|
|
*/
|
|
signal(SIGCHLD, SIG_IGN);
|
|
line_holder = curr_line;
|
|
tmp_vert = scr_vert;
|
|
close(pipe_in[1]);
|
|
get_fd = pipe_in[0];
|
|
get_file("");
|
|
close(pipe_in[0]);
|
|
scr_vert = tmp_vert;
|
|
scr_horz = scr_pos = 0;
|
|
position = 1;
|
|
curr_line = line_holder;
|
|
point = curr_line->line;
|
|
out_pipe = FALSE;
|
|
signal(SIGCHLD, SIG_DFL);
|
|
/*
|
|
| since flag "in_pipe" is still TRUE, the path which waits for the child
|
|
| process to die will be avoided.
|
|
| (the pipe is closed, no more output can be expected)
|
|
*/
|
|
}
|
|
}
|
|
if (!in_pipe)
|
|
{
|
|
signal(SIGINT, SIG_IGN);
|
|
if (out_pipe)
|
|
{
|
|
pipe(pipe_out);
|
|
}
|
|
/*
|
|
| fork process which will exec command
|
|
*/
|
|
parent = fork();
|
|
if (!parent) /* if the child */
|
|
{
|
|
if (shell_fork)
|
|
putchar('\n');
|
|
if (out_pipe)
|
|
{
|
|
/*
|
|
| prepare the child process (soon to exec a shell command) to read from the
|
|
| pipe (which will be output from the editor's buffer)
|
|
*/
|
|
close(0);
|
|
dup(pipe_out[0]);
|
|
close(pipe_out[0]);
|
|
close(pipe_out[1]);
|
|
}
|
|
for (value = 1; value < 24; value++)
|
|
signal(value, SIG_DFL);
|
|
execl(path, last_slash, "-c", string, NULL);
|
|
errx(1, exec_err_msg, path);
|
|
}
|
|
else /* if the parent */
|
|
{
|
|
if (out_pipe)
|
|
{
|
|
/*
|
|
| output the contents of the buffer to the pipe (to be read by the
|
|
| process forked and exec'd above as stdin)
|
|
*/
|
|
close(pipe_out[0]);
|
|
line_holder = first_line;
|
|
while (line_holder != NULL)
|
|
{
|
|
write(pipe_out[1], line_holder->line, (line_holder->line_length-1));
|
|
write(pipe_out[1], "\n", 1);
|
|
line_holder = line_holder->next_line;
|
|
}
|
|
close(pipe_out[1]);
|
|
out_pipe = FALSE;
|
|
}
|
|
do
|
|
{
|
|
return_val = wait((int *) 0);
|
|
}
|
|
while ((return_val != parent) && (return_val != -1));
|
|
/*
|
|
| if this process is actually the child of the editor, exit. Here's how it
|
|
| works:
|
|
| The editor forks a process. If output must be sent to the command to be
|
|
| exec'd another process is forked, and that process (the child's child)
|
|
| will exec the command. In this case, "shell_fork" will be FALSE. If no
|
|
| output is to be performed to the shell command, "shell_fork" will be TRUE.
|
|
| If this is the editor process, shell_fork will be true, otherwise this is
|
|
| the child of the edit process.
|
|
*/
|
|
if (!shell_fork)
|
|
exit(0);
|
|
}
|
|
signal(SIGINT, edit_abort);
|
|
}
|
|
if (shell_fork)
|
|
{
|
|
printf(continue_msg);
|
|
fflush(stdout);
|
|
while ((in = getchar()) != '\n')
|
|
;
|
|
}
|
|
|
|
if (!in_pipe)
|
|
{
|
|
fixterm();
|
|
noecho();
|
|
nonl();
|
|
raw();
|
|
keypad(text_win, TRUE);
|
|
keypad(com_win, TRUE);
|
|
if (info_window)
|
|
clearok(info_win, TRUE);
|
|
}
|
|
|
|
redraw();
|
|
}
|
|
|
|
void
|
|
set_up_term() /* set up the terminal for operating with ae */
|
|
{
|
|
if (!curses_initialized)
|
|
{
|
|
initscr();
|
|
savetty();
|
|
noecho();
|
|
raw();
|
|
nonl();
|
|
curses_initialized = TRUE;
|
|
}
|
|
|
|
if (((LINES > 15) && (COLS >= 80)) && info_window)
|
|
last_line = LINES - 8;
|
|
else
|
|
{
|
|
info_window = FALSE;
|
|
last_line = LINES - 2;
|
|
}
|
|
|
|
idlok(stdscr, TRUE);
|
|
com_win = newwin(1, COLS, (LINES - 1), 0);
|
|
keypad(com_win, TRUE);
|
|
idlok(com_win, TRUE);
|
|
wrefresh(com_win);
|
|
if (!info_window)
|
|
text_win = newwin((LINES - 1), COLS, 0, 0);
|
|
else
|
|
text_win = newwin((LINES - 7), COLS, 6, 0);
|
|
keypad(text_win, TRUE);
|
|
idlok(text_win, TRUE);
|
|
wrefresh(text_win);
|
|
help_win = newwin((LINES - 1), COLS, 0, 0);
|
|
keypad(help_win, TRUE);
|
|
idlok(help_win, TRUE);
|
|
if (info_window)
|
|
{
|
|
info_type = CONTROL_KEYS;
|
|
info_win = newwin(6, COLS, 0, 0);
|
|
werase(info_win);
|
|
paint_info_win();
|
|
}
|
|
|
|
last_col = COLS - 1;
|
|
local_LINES = LINES;
|
|
local_COLS = COLS;
|
|
}
|
|
|
|
void
|
|
resize_check()
|
|
{
|
|
if ((LINES == local_LINES) && (COLS == local_COLS))
|
|
return;
|
|
|
|
if (info_window)
|
|
delwin(info_win);
|
|
delwin(text_win);
|
|
delwin(com_win);
|
|
delwin(help_win);
|
|
set_up_term();
|
|
redraw();
|
|
wrefresh(text_win);
|
|
}
|
|
|
|
static char item_alpha[] = "abcdefghijklmnopqrstuvwxyz0123456789 ";
|
|
|
|
int
|
|
menu_op(menu_list)
|
|
struct menu_entries menu_list[];
|
|
{
|
|
WINDOW *temp_win;
|
|
int max_width, max_height;
|
|
int x_off, y_off;
|
|
int counter;
|
|
int length;
|
|
int input;
|
|
int temp;
|
|
int list_size;
|
|
int top_offset; /* offset from top where menu items start */
|
|
int vert_pos; /* vertical position */
|
|
int vert_size; /* vertical size for menu list item display */
|
|
int off_start = 1; /* offset from start of menu items to start display */
|
|
|
|
|
|
/*
|
|
| determine number and width of menu items
|
|
*/
|
|
|
|
list_size = 1;
|
|
while (menu_list[list_size + 1].item_string != NULL)
|
|
list_size++;
|
|
max_width = 0;
|
|
for (counter = 0; counter <= list_size; counter++)
|
|
{
|
|
if ((length = strlen(menu_list[counter].item_string)) > max_width)
|
|
max_width = length;
|
|
}
|
|
max_width += 3;
|
|
max_width = max(max_width, strlen(cancel_string));
|
|
max_width = max(max_width, max(strlen(more_above_str), strlen(more_below_str)));
|
|
max_width += 6;
|
|
|
|
/*
|
|
| make sure that window is large enough to handle menu
|
|
| if not, print error message and return to calling function
|
|
*/
|
|
|
|
if (max_width > COLS)
|
|
{
|
|
wmove(com_win, 0, 0);
|
|
werase(com_win);
|
|
wprintw(com_win, menu_too_lrg_msg);
|
|
wrefresh(com_win);
|
|
clear_com_win = TRUE;
|
|
return(0);
|
|
}
|
|
|
|
top_offset = 0;
|
|
|
|
if (list_size > LINES)
|
|
{
|
|
max_height = LINES;
|
|
if (max_height > 11)
|
|
vert_size = max_height - 8;
|
|
else
|
|
vert_size = max_height;
|
|
}
|
|
else
|
|
{
|
|
vert_size = list_size;
|
|
max_height = list_size;
|
|
}
|
|
|
|
if (LINES >= (vert_size + 8))
|
|
{
|
|
if (menu_list[0].argument != MENU_WARN)
|
|
max_height = vert_size + 8;
|
|
else
|
|
max_height = vert_size + 7;
|
|
top_offset = 4;
|
|
}
|
|
x_off = (COLS - max_width) / 2;
|
|
y_off = (LINES - max_height - 1) / 2;
|
|
temp_win = newwin(max_height, max_width, y_off, x_off);
|
|
keypad(temp_win, TRUE);
|
|
|
|
paint_menu(menu_list, max_width, max_height, list_size, top_offset, temp_win, off_start, vert_size);
|
|
|
|
counter = 1;
|
|
vert_pos = 0;
|
|
do
|
|
{
|
|
if (off_start > 2)
|
|
wmove(temp_win, (1 + counter + top_offset - off_start), 3);
|
|
else
|
|
wmove(temp_win, (counter + top_offset - off_start), 3);
|
|
|
|
wrefresh(temp_win);
|
|
in = wgetch(temp_win);
|
|
input = in;
|
|
if (input == -1)
|
|
exit(0);
|
|
|
|
if (((tolower(input) >= 'a') && (tolower(input) <= 'z')) ||
|
|
((input >= '0') && (input <= '9')))
|
|
{
|
|
if ((tolower(input) >= 'a') && (tolower(input) <= 'z'))
|
|
{
|
|
temp = 1 + tolower(input) - 'a';
|
|
}
|
|
else if ((input >= '0') && (input <= '9'))
|
|
{
|
|
temp = (2 + 'z' - 'a') + (input - '0');
|
|
}
|
|
|
|
if (temp <= list_size)
|
|
{
|
|
input = '\n';
|
|
counter = temp;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
switch (input)
|
|
{
|
|
case ' ': /* space */
|
|
case '\004': /* ^d, down */
|
|
case KEY_RIGHT:
|
|
case KEY_DOWN:
|
|
counter++;
|
|
if (counter > list_size)
|
|
counter = 1;
|
|
break;
|
|
case '\010': /* ^h, backspace*/
|
|
case '\025': /* ^u, up */
|
|
case 127: /* ^?, delete */
|
|
case KEY_BACKSPACE:
|
|
case KEY_LEFT:
|
|
case KEY_UP:
|
|
counter--;
|
|
if (counter == 0)
|
|
counter = list_size;
|
|
break;
|
|
case '\033': /* escape key */
|
|
if (menu_list[0].argument != MENU_WARN)
|
|
counter = 0;
|
|
break;
|
|
case '\014': /* ^l */
|
|
case '\022': /* ^r, redraw */
|
|
paint_menu(menu_list, max_width, max_height,
|
|
list_size, top_offset, temp_win,
|
|
off_start, vert_size);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (((list_size - off_start) >= (vert_size - 1)) &&
|
|
(counter > (off_start + vert_size - 3)) &&
|
|
(off_start > 1))
|
|
{
|
|
if (counter == list_size)
|
|
off_start = (list_size - vert_size) + 2;
|
|
else
|
|
off_start++;
|
|
|
|
paint_menu(menu_list, max_width, max_height,
|
|
list_size, top_offset, temp_win, off_start,
|
|
vert_size);
|
|
}
|
|
else if ((list_size != vert_size) &&
|
|
(counter > (off_start + vert_size - 2)))
|
|
{
|
|
if (counter == list_size)
|
|
off_start = 2 + (list_size - vert_size);
|
|
else if (off_start == 1)
|
|
off_start = 3;
|
|
else
|
|
off_start++;
|
|
|
|
paint_menu(menu_list, max_width, max_height,
|
|
list_size, top_offset, temp_win, off_start,
|
|
vert_size);
|
|
}
|
|
else if (counter < off_start)
|
|
{
|
|
if (counter <= 2)
|
|
off_start = 1;
|
|
else
|
|
off_start = counter;
|
|
|
|
paint_menu(menu_list, max_width, max_height,
|
|
list_size, top_offset, temp_win, off_start,
|
|
vert_size);
|
|
}
|
|
}
|
|
while ((input != '\r') && (input != '\n') && (counter != 0));
|
|
|
|
werase(temp_win);
|
|
wrefresh(temp_win);
|
|
delwin(temp_win);
|
|
|
|
if ((menu_list[counter].procedure != NULL) ||
|
|
(menu_list[counter].iprocedure != NULL) ||
|
|
(menu_list[counter].nprocedure != NULL))
|
|
{
|
|
if (menu_list[counter].argument != -1)
|
|
(*menu_list[counter].iprocedure)(menu_list[counter].argument);
|
|
else if (menu_list[counter].ptr_argument != NULL)
|
|
(*menu_list[counter].procedure)(menu_list[counter].ptr_argument);
|
|
else
|
|
(*menu_list[counter].nprocedure)();
|
|
}
|
|
|
|
if (info_window)
|
|
paint_info_win();
|
|
redraw();
|
|
|
|
return(counter);
|
|
}
|
|
|
|
void
|
|
paint_menu(menu_list, max_width, max_height, list_size, top_offset, menu_win,
|
|
off_start, vert_size)
|
|
struct menu_entries menu_list[];
|
|
int max_width, max_height, list_size, top_offset;
|
|
WINDOW *menu_win;
|
|
int off_start, vert_size;
|
|
{
|
|
int counter, temp_int;
|
|
|
|
werase(menu_win);
|
|
|
|
/*
|
|
| output top and bottom portions of menu box only if window
|
|
| large enough
|
|
*/
|
|
|
|
if (max_height > vert_size)
|
|
{
|
|
wmove(menu_win, 1, 1);
|
|
if (!nohighlight)
|
|
wstandout(menu_win);
|
|
waddch(menu_win, '+');
|
|
for (counter = 0; counter < (max_width - 4); counter++)
|
|
waddch(menu_win, '-');
|
|
waddch(menu_win, '+');
|
|
|
|
wmove(menu_win, (max_height - 2), 1);
|
|
waddch(menu_win, '+');
|
|
for (counter = 0; counter < (max_width - 4); counter++)
|
|
waddch(menu_win, '-');
|
|
waddch(menu_win, '+');
|
|
wstandend(menu_win);
|
|
wmove(menu_win, 2, 3);
|
|
waddstr(menu_win, menu_list[0].item_string);
|
|
wmove(menu_win, (max_height - 3), 3);
|
|
if (menu_list[0].argument != MENU_WARN)
|
|
waddstr(menu_win, cancel_string);
|
|
}
|
|
if (!nohighlight)
|
|
wstandout(menu_win);
|
|
|
|
for (counter = 0; counter < (vert_size + top_offset); counter++)
|
|
{
|
|
if (top_offset == 4)
|
|
{
|
|
temp_int = counter + 2;
|
|
}
|
|
else
|
|
temp_int = counter;
|
|
|
|
wmove(menu_win, temp_int, 1);
|
|
waddch(menu_win, '|');
|
|
wmove(menu_win, temp_int, (max_width - 2));
|
|
waddch(menu_win, '|');
|
|
}
|
|
wstandend(menu_win);
|
|
|
|
if (list_size > vert_size)
|
|
{
|
|
if (off_start >= 3)
|
|
{
|
|
temp_int = 1;
|
|
wmove(menu_win, top_offset, 3);
|
|
waddstr(menu_win, more_above_str);
|
|
}
|
|
else
|
|
temp_int = 0;
|
|
|
|
for (counter = off_start;
|
|
((temp_int + counter - off_start) < (vert_size - 1));
|
|
counter++)
|
|
{
|
|
wmove(menu_win, (top_offset + temp_int +
|
|
(counter - off_start)), 3);
|
|
if (list_size > 1)
|
|
wprintw(menu_win, "%c) ", item_alpha[min((counter - 1), max_alpha_char)]);
|
|
waddstr(menu_win, menu_list[counter].item_string);
|
|
}
|
|
|
|
wmove(menu_win, (top_offset + (vert_size - 1)), 3);
|
|
|
|
if (counter == list_size)
|
|
{
|
|
if (list_size > 1)
|
|
wprintw(menu_win, "%c) ", item_alpha[min((counter - 1), max_alpha_char)]);
|
|
wprintw(menu_win, menu_list[counter].item_string);
|
|
}
|
|
else
|
|
wprintw(menu_win, more_below_str);
|
|
}
|
|
else
|
|
{
|
|
for (counter = 1; counter <= list_size; counter++)
|
|
{
|
|
wmove(menu_win, (top_offset + counter - 1), 3);
|
|
if (list_size > 1)
|
|
wprintw(menu_win, "%c) ", item_alpha[min((counter - 1), max_alpha_char)]);
|
|
waddstr(menu_win, menu_list[counter].item_string);
|
|
}
|
|
}
|
|
}
|
|
|
|
void
|
|
help()
|
|
{
|
|
int counter;
|
|
|
|
werase(help_win);
|
|
clearok(help_win, TRUE);
|
|
for (counter = 0; counter < 22; counter++)
|
|
{
|
|
wmove(help_win, counter, 0);
|
|
waddstr(help_win, (emacs_keys_mode) ?
|
|
emacs_help_text[counter] : help_text[counter]);
|
|
}
|
|
wrefresh(help_win);
|
|
werase(com_win);
|
|
wmove(com_win, 0, 0);
|
|
wprintw(com_win, press_any_key_msg);
|
|
wrefresh(com_win);
|
|
counter = wgetch(com_win);
|
|
if (counter == -1)
|
|
exit(0);
|
|
werase(com_win);
|
|
wmove(com_win, 0, 0);
|
|
werase(help_win);
|
|
wrefresh(help_win);
|
|
wrefresh(com_win);
|
|
redraw();
|
|
}
|
|
|
|
void
|
|
paint_info_win()
|
|
{
|
|
int counter;
|
|
|
|
if (!info_window)
|
|
return;
|
|
|
|
werase(info_win);
|
|
for (counter = 0; counter < 5; counter++)
|
|
{
|
|
wmove(info_win, counter, 0);
|
|
wclrtoeol(info_win);
|
|
if (info_type == CONTROL_KEYS)
|
|
waddstr(info_win, (emacs_keys_mode) ?
|
|
emacs_control_keys[counter] : control_keys[counter]);
|
|
else if (info_type == COMMANDS)
|
|
waddstr(info_win, command_strings[counter]);
|
|
}
|
|
wmove(info_win, 5, 0);
|
|
if (!nohighlight)
|
|
wstandout(info_win);
|
|
waddstr(info_win, "===============================================================================");
|
|
wstandend(info_win);
|
|
wrefresh(info_win);
|
|
}
|
|
|
|
void
|
|
no_info_window()
|
|
{
|
|
if (!info_window)
|
|
return;
|
|
delwin(info_win);
|
|
delwin(text_win);
|
|
info_window = FALSE;
|
|
last_line = LINES - 2;
|
|
text_win = newwin((LINES - 1), COLS, 0, 0);
|
|
keypad(text_win, TRUE);
|
|
idlok(text_win, TRUE);
|
|
clearok(text_win, TRUE);
|
|
midscreen(scr_vert, point);
|
|
wrefresh(text_win);
|
|
clear_com_win = TRUE;
|
|
}
|
|
|
|
void
|
|
create_info_window()
|
|
{
|
|
if (info_window)
|
|
return;
|
|
last_line = LINES - 8;
|
|
delwin(text_win);
|
|
text_win = newwin((LINES - 7), COLS, 6, 0);
|
|
keypad(text_win, TRUE);
|
|
idlok(text_win, TRUE);
|
|
werase(text_win);
|
|
info_window = TRUE;
|
|
info_win = newwin(6, COLS, 0, 0);
|
|
werase(info_win);
|
|
info_type = CONTROL_KEYS;
|
|
midscreen(min(scr_vert, last_line), point);
|
|
clearok(info_win, TRUE);
|
|
paint_info_win();
|
|
wrefresh(text_win);
|
|
clear_com_win = TRUE;
|
|
}
|
|
|
|
int
|
|
file_op(arg)
|
|
int arg;
|
|
{
|
|
char *string;
|
|
int flag;
|
|
|
|
if (restrict_mode())
|
|
{
|
|
return(0);
|
|
}
|
|
|
|
if (arg == READ_FILE)
|
|
{
|
|
string = get_string(file_read_prompt_str, TRUE);
|
|
recv_file = TRUE;
|
|
tmp_file = resolve_name(string);
|
|
check_fp();
|
|
if (tmp_file != string)
|
|
free(tmp_file);
|
|
free(string);
|
|
}
|
|
else if (arg == WRITE_FILE)
|
|
{
|
|
string = get_string(file_write_prompt_str, TRUE);
|
|
tmp_file = resolve_name(string);
|
|
write_file(tmp_file);
|
|
if (tmp_file != string)
|
|
free(tmp_file);
|
|
free(string);
|
|
}
|
|
else if (arg == SAVE_FILE)
|
|
{
|
|
/*
|
|
| changes made here should be reflected in finish()
|
|
*/
|
|
|
|
if (in_file_name)
|
|
flag = TRUE;
|
|
else
|
|
flag = FALSE;
|
|
|
|
string = in_file_name;
|
|
if ((string == NULL) || (*string == (char) NULL))
|
|
string = get_string(save_file_name_prompt, TRUE);
|
|
if ((string == NULL) || (*string == (char) NULL))
|
|
{
|
|
wmove(com_win, 0, 0);
|
|
wprintw(com_win, file_not_saved_msg);
|
|
wclrtoeol(com_win);
|
|
wrefresh(com_win);
|
|
clear_com_win = TRUE;
|
|
return(0);
|
|
}
|
|
if (!flag)
|
|
{
|
|
tmp_file = resolve_name(string);
|
|
if (tmp_file != string)
|
|
{
|
|
free(string);
|
|
string = tmp_file;
|
|
}
|
|
}
|
|
if (write_file(string))
|
|
{
|
|
in_file_name = string;
|
|
text_changes = FALSE;
|
|
}
|
|
else if (!flag)
|
|
free(string);
|
|
}
|
|
return(0);
|
|
}
|
|
|
|
void
|
|
shell_op()
|
|
{
|
|
char *string;
|
|
|
|
if (((string = get_string(shell_prompt, TRUE)) != NULL) &&
|
|
(*string != (char) NULL))
|
|
{
|
|
sh_command(string);
|
|
free(string);
|
|
}
|
|
}
|
|
|
|
void
|
|
leave_op()
|
|
{
|
|
if (text_changes)
|
|
{
|
|
menu_op(leave_menu);
|
|
}
|
|
else
|
|
quit(TRUE);
|
|
}
|
|
|
|
void
|
|
redraw()
|
|
{
|
|
if (info_window)
|
|
{
|
|
clearok(info_win, TRUE);
|
|
paint_info_win();
|
|
}
|
|
else
|
|
clearok(text_win, TRUE);
|
|
midscreen(scr_vert, point);
|
|
}
|
|
|
|
/*
|
|
| The following routines will "format" a paragraph (as defined by a
|
|
| block of text with blank lines before and after the block).
|
|
*/
|
|
|
|
int
|
|
Blank_Line(test_line) /* test if line has any non-space characters */
|
|
struct text *test_line;
|
|
{
|
|
char *line;
|
|
int length;
|
|
|
|
if (test_line == NULL)
|
|
return(TRUE);
|
|
|
|
length = 1;
|
|
line = test_line->line;
|
|
|
|
/*
|
|
| To handle troff/nroff documents, consider a line with a
|
|
| period ('.') in the first column to be blank. To handle mail
|
|
| messages with included text, consider a line with a '>' blank.
|
|
*/
|
|
|
|
if ((*line == '.') || (*line == '>'))
|
|
return(TRUE);
|
|
|
|
while (((*line == ' ') || (*line == '\t')) && (length < test_line->line_length))
|
|
{
|
|
length++;
|
|
line++;
|
|
}
|
|
if (length != test_line->line_length)
|
|
return(FALSE);
|
|
else
|
|
return(TRUE);
|
|
}
|
|
|
|
void
|
|
Format() /* format the paragraph according to set margins */
|
|
{
|
|
int string_count;
|
|
int offset;
|
|
int temp_case;
|
|
int status;
|
|
int tmp_af;
|
|
int counter;
|
|
char *line;
|
|
char *tmp_srchstr;
|
|
char *temp1, *temp2;
|
|
char *temp_dword;
|
|
char temp_d_char = d_char;
|
|
|
|
/*
|
|
| if observ_margins is not set, or the current line is blank,
|
|
| do not format the current paragraph
|
|
*/
|
|
|
|
if ((!observ_margins) || (Blank_Line(curr_line)))
|
|
return;
|
|
|
|
/*
|
|
| save the currently set flags, and clear them
|
|
*/
|
|
|
|
wmove(com_win, 0, 0);
|
|
wclrtoeol(com_win);
|
|
wprintw(com_win, formatting_msg);
|
|
wrefresh(com_win);
|
|
|
|
/*
|
|
| get current position in paragraph, so after formatting, the cursor
|
|
| will be in the same relative position
|
|
*/
|
|
|
|
tmp_af = auto_format;
|
|
auto_format = FALSE;
|
|
offset = position;
|
|
if (position != 1)
|
|
prev_word();
|
|
temp_dword = d_word;
|
|
d_word = NULL;
|
|
temp_case = case_sen;
|
|
case_sen = TRUE;
|
|
tmp_srchstr = srch_str;
|
|
temp2 = srch_str = (char *) malloc(1 + curr_line->line_length - position);
|
|
if ((*point == ' ') || (*point == '\t'))
|
|
adv_word();
|
|
offset -= position;
|
|
counter = position;
|
|
line = temp1 = point;
|
|
while ((*temp1 != (char) NULL) && (*temp1 != ' ') && (*temp1 != '\t') && (counter < curr_line->line_length))
|
|
{
|
|
*temp2 = *temp1;
|
|
temp2++;
|
|
temp1++;
|
|
counter++;
|
|
}
|
|
*temp2 = (char) NULL;
|
|
if (position != 1)
|
|
bol();
|
|
while (!Blank_Line(curr_line->prev_line))
|
|
bol();
|
|
string_count = 0;
|
|
status = TRUE;
|
|
while ((line != point) && (status))
|
|
{
|
|
status = search(FALSE);
|
|
string_count++;
|
|
}
|
|
|
|
wmove(com_win, 0, 0);
|
|
wclrtoeol(com_win);
|
|
wprintw(com_win, formatting_msg);
|
|
wrefresh(com_win);
|
|
|
|
/*
|
|
| now get back to the start of the paragraph to start formatting
|
|
*/
|
|
|
|
if (position != 1)
|
|
bol();
|
|
while (!Blank_Line(curr_line->prev_line))
|
|
bol();
|
|
|
|
observ_margins = FALSE;
|
|
|
|
/*
|
|
| Start going through lines, putting spaces at end of lines if they do
|
|
| not already exist. Append lines together to get one long line, and
|
|
| eliminate spacing at begin of lines.
|
|
*/
|
|
|
|
while (!Blank_Line(curr_line->next_line))
|
|
{
|
|
eol();
|
|
left(TRUE);
|
|
if (*point != ' ')
|
|
{
|
|
right(TRUE);
|
|
insert(' ');
|
|
}
|
|
else
|
|
right(TRUE);
|
|
del_char();
|
|
if ((*point == ' ') || (*point == '\t'))
|
|
del_word();
|
|
}
|
|
|
|
/*
|
|
| Now there is one long line. Eliminate extra spaces within the line
|
|
| after the first word (so as not to blow away any indenting the user
|
|
| may have put in).
|
|
*/
|
|
|
|
bol();
|
|
adv_word();
|
|
while (position < curr_line->line_length)
|
|
{
|
|
if ((*point == ' ') && (*(point + 1) == ' '))
|
|
del_char();
|
|
else
|
|
right(TRUE);
|
|
}
|
|
|
|
/*
|
|
| Now make sure there are two spaces after a '.'.
|
|
*/
|
|
|
|
bol();
|
|
while (position < curr_line->line_length)
|
|
{
|
|
if ((*point == '.') && (*(point + 1) == ' '))
|
|
{
|
|
right(TRUE);
|
|
insert(' ');
|
|
insert(' ');
|
|
while (*point == ' ')
|
|
del_char();
|
|
}
|
|
right(TRUE);
|
|
}
|
|
|
|
observ_margins = TRUE;
|
|
bol();
|
|
|
|
wmove(com_win, 0, 0);
|
|
wclrtoeol(com_win);
|
|
wprintw(com_win, formatting_msg);
|
|
wrefresh(com_win);
|
|
|
|
/*
|
|
| create lines between margins
|
|
*/
|
|
|
|
while (position < curr_line->line_length)
|
|
{
|
|
while ((scr_pos < right_margin) && (position < curr_line->line_length))
|
|
right(TRUE);
|
|
if (position < curr_line->line_length)
|
|
{
|
|
prev_word();
|
|
if (position == 1)
|
|
adv_word();
|
|
insert_line(TRUE);
|
|
}
|
|
}
|
|
|
|
/*
|
|
| go back to begin of paragraph, put cursor back to original position
|
|
*/
|
|
|
|
bol();
|
|
while (!Blank_Line(curr_line->prev_line))
|
|
bol();
|
|
|
|
/*
|
|
| find word cursor was in
|
|
*/
|
|
|
|
while ((status) && (string_count > 0))
|
|
{
|
|
search(FALSE);
|
|
string_count--;
|
|
}
|
|
|
|
/*
|
|
| offset the cursor to where it was before from the start of the word
|
|
*/
|
|
|
|
while (offset > 0)
|
|
{
|
|
offset--;
|
|
right(TRUE);
|
|
}
|
|
|
|
/*
|
|
| reset flags and strings to what they were before formatting
|
|
*/
|
|
|
|
if (d_word != NULL)
|
|
free(d_word);
|
|
d_word = temp_dword;
|
|
case_sen = temp_case;
|
|
free(srch_str);
|
|
srch_str = tmp_srchstr;
|
|
d_char = temp_d_char;
|
|
auto_format = tmp_af;
|
|
|
|
midscreen(scr_vert, point);
|
|
werase(com_win);
|
|
wrefresh(com_win);
|
|
}
|
|
|
|
char *init_name[3] = {
|
|
"/usr/share/misc/init.ee",
|
|
NULL,
|
|
".init.ee"
|
|
};
|
|
|
|
void
|
|
ee_init() /* check for init file and read it if it exists */
|
|
{
|
|
FILE *init_file;
|
|
char *string;
|
|
char *str1;
|
|
char *str2;
|
|
char *home;
|
|
int counter;
|
|
int temp_int;
|
|
|
|
string = getenv("HOME");
|
|
if (!string)
|
|
string = "/root"; /* Set to reasonable default so we don't crash */
|
|
str1 = home = malloc(strlen(string)+10);
|
|
strcpy(home, string);
|
|
strcat(home, "/.init.ee");
|
|
init_name[1] = home;
|
|
string = malloc(512);
|
|
|
|
for (counter = 0; counter < 3; counter++)
|
|
{
|
|
if (!(access(init_name[counter], 4)))
|
|
{
|
|
init_file = fopen(init_name[counter], "r");
|
|
while ((str2 = fgets(string, 512, init_file)) != NULL)
|
|
{
|
|
str1 = str2 = string;
|
|
while (*str2 != '\n')
|
|
str2++;
|
|
*str2 = (char) NULL;
|
|
|
|
if (unique_test(string, init_strings) != 1)
|
|
continue;
|
|
|
|
if (compare(str1, CASE, FALSE))
|
|
case_sen = TRUE;
|
|
else if (compare(str1, NOCASE, FALSE))
|
|
case_sen = FALSE;
|
|
else if (compare(str1, EXPAND, FALSE))
|
|
expand_tabs = TRUE;
|
|
else if (compare(str1, NOEXPAND, FALSE))
|
|
expand_tabs = FALSE;
|
|
else if (compare(str1, INFO, FALSE))
|
|
info_window = TRUE;
|
|
else if (compare(str1, NOINFO, FALSE))
|
|
info_window = FALSE;
|
|
else if (compare(str1, MARGINS, FALSE))
|
|
observ_margins = TRUE;
|
|
else if (compare(str1, NOMARGINS, FALSE))
|
|
observ_margins = FALSE;
|
|
else if (compare(str1, AUTOFORMAT, FALSE))
|
|
{
|
|
auto_format = TRUE;
|
|
observ_margins = TRUE;
|
|
}
|
|
else if (compare(str1, NOAUTOFORMAT, FALSE))
|
|
auto_format = FALSE;
|
|
else if (compare(str1, Echo, FALSE))
|
|
{
|
|
str1 = next_word(str1);
|
|
if (*str1 != (char) NULL)
|
|
echo_string(str1);
|
|
}
|
|
else if (compare(str1, PRINTCOMMAND, FALSE))
|
|
{
|
|
str1 = next_word(str1);
|
|
print_command = malloc(strlen(str1)+1);
|
|
strcpy(print_command, str1);
|
|
}
|
|
else if (compare(str1, RIGHTMARGIN, FALSE))
|
|
{
|
|
str1 = next_word(str1);
|
|
if ((*str1 >= '0') && (*str1 <= '9'))
|
|
{
|
|
temp_int = atoi(str1);
|
|
if (temp_int > 0)
|
|
right_margin = temp_int;
|
|
}
|
|
}
|
|
else if (compare(str1, HIGHLIGHT, FALSE))
|
|
nohighlight = FALSE;
|
|
else if (compare(str1, NOHIGHLIGHT, FALSE))
|
|
nohighlight = TRUE;
|
|
else if (compare(str1, EIGHTBIT, FALSE))
|
|
eightbit = TRUE;
|
|
else if (compare(str1, NOEIGHTBIT, FALSE))
|
|
eightbit = FALSE;
|
|
else if (compare(str1, EMACS_string, FALSE))
|
|
emacs_keys_mode = TRUE;
|
|
else if (compare(str1, NOEMACS_string, FALSE))
|
|
emacs_keys_mode = FALSE;
|
|
}
|
|
fclose(init_file);
|
|
}
|
|
}
|
|
free(string);
|
|
free(home);
|
|
}
|
|
|
|
/*
|
|
| Save current configuration to .init.ee file in the current directory.
|
|
*/
|
|
|
|
void
|
|
dump_ee_conf()
|
|
{
|
|
FILE *init_file;
|
|
FILE *old_init_file = NULL;
|
|
char *file_name = ".init.ee";
|
|
char *home_dir = "~/.init.ee";
|
|
char buffer[512];
|
|
struct stat buf;
|
|
char *string;
|
|
int length;
|
|
int option = 0;
|
|
|
|
if (restrict_mode())
|
|
{
|
|
return;
|
|
}
|
|
|
|
option = menu_op(config_dump_menu);
|
|
|
|
werase(com_win);
|
|
wmove(com_win, 0, 0);
|
|
|
|
if (option == 0)
|
|
{
|
|
wprintw(com_win, conf_not_saved_msg);
|
|
wrefresh(com_win);
|
|
return;
|
|
}
|
|
else if (option == 2)
|
|
file_name = resolve_name(home_dir);
|
|
|
|
/*
|
|
| If a .init.ee file exists, move it to .init.ee.old.
|
|
*/
|
|
|
|
if (stat(file_name, &buf) != -1)
|
|
{
|
|
sprintf(buffer, "%s.old", file_name);
|
|
unlink(buffer);
|
|
link(file_name, buffer);
|
|
unlink(file_name);
|
|
old_init_file = fopen(buffer, "r");
|
|
}
|
|
|
|
init_file = fopen(file_name, "w");
|
|
if (init_file == NULL)
|
|
{
|
|
wprintw(com_win, conf_dump_err_msg);
|
|
wrefresh(com_win);
|
|
return;
|
|
}
|
|
|
|
if (old_init_file != NULL)
|
|
{
|
|
/*
|
|
| Copy non-configuration info into new .init.ee file.
|
|
*/
|
|
while ((string = fgets(buffer, 512, old_init_file)) != NULL)
|
|
{
|
|
length = strlen(string);
|
|
string[length - 1] = (char) NULL;
|
|
|
|
if (unique_test(string, init_strings) == 1)
|
|
{
|
|
if (compare(string, Echo, FALSE))
|
|
{
|
|
fprintf(init_file, "%s\n", string);
|
|
}
|
|
}
|
|
else
|
|
fprintf(init_file, "%s\n", string);
|
|
}
|
|
|
|
fclose(old_init_file);
|
|
}
|
|
|
|
fprintf(init_file, "%s\n", case_sen ? CASE : NOCASE);
|
|
fprintf(init_file, "%s\n", expand_tabs ? EXPAND : NOEXPAND);
|
|
fprintf(init_file, "%s\n", info_window ? INFO : NOINFO );
|
|
fprintf(init_file, "%s\n", observ_margins ? MARGINS : NOMARGINS );
|
|
fprintf(init_file, "%s\n", auto_format ? AUTOFORMAT : NOAUTOFORMAT );
|
|
fprintf(init_file, "%s %s\n", PRINTCOMMAND, print_command);
|
|
fprintf(init_file, "%s %d\n", RIGHTMARGIN, right_margin);
|
|
fprintf(init_file, "%s\n", nohighlight ? NOHIGHLIGHT : HIGHLIGHT );
|
|
fprintf(init_file, "%s\n", eightbit ? EIGHTBIT : NOEIGHTBIT );
|
|
fprintf(init_file, "%s\n", emacs_keys_mode ? EMACS_string : NOEMACS_string );
|
|
|
|
fclose(init_file);
|
|
|
|
wprintw(com_win, conf_dump_success_msg, file_name);
|
|
wrefresh(com_win);
|
|
|
|
if ((option == 2) && (file_name != home_dir))
|
|
{
|
|
free(file_name);
|
|
}
|
|
}
|
|
|
|
void
|
|
echo_string(string) /* echo the given string */
|
|
char *string;
|
|
{
|
|
char *temp;
|
|
int Counter;
|
|
|
|
temp = string;
|
|
while (*temp != (char) NULL)
|
|
{
|
|
if (*temp == '\\')
|
|
{
|
|
temp++;
|
|
if (*temp == 'n')
|
|
putchar('\n');
|
|
else if (*temp == 't')
|
|
putchar('\t');
|
|
else if (*temp == 'b')
|
|
putchar('\b');
|
|
else if (*temp == 'r')
|
|
putchar('\r');
|
|
else if (*temp == 'f')
|
|
putchar('\f');
|
|
else if ((*temp == 'e') || (*temp == 'E'))
|
|
putchar('\033'); /* escape */
|
|
else if (*temp == '\\')
|
|
putchar('\\');
|
|
else if (*temp == '\'')
|
|
putchar('\'');
|
|
else if ((*temp >= '0') && (*temp <= '9'))
|
|
{
|
|
Counter = 0;
|
|
while ((*temp >= '0') && (*temp <= '9'))
|
|
{
|
|
Counter = (8 * Counter) + (*temp - '0');
|
|
temp++;
|
|
}
|
|
putchar(Counter);
|
|
temp--;
|
|
}
|
|
temp++;
|
|
}
|
|
else
|
|
{
|
|
putchar(*temp);
|
|
temp++;
|
|
}
|
|
}
|
|
|
|
fflush(stdout);
|
|
}
|
|
|
|
void
|
|
spell_op() /* check spelling of words in the editor */
|
|
{
|
|
if (restrict_mode())
|
|
{
|
|
return;
|
|
}
|
|
top(); /* go to top of file */
|
|
insert_line(FALSE); /* create two blank lines */
|
|
insert_line(FALSE);
|
|
top();
|
|
command(shell_echo_msg);
|
|
adv_line();
|
|
wmove(com_win, 0, 0);
|
|
wprintw(com_win, spell_in_prog_msg);
|
|
wrefresh(com_win);
|
|
command("<>!spell"); /* send contents of buffer to command 'spell'
|
|
and read the results back into the editor */
|
|
}
|
|
|
|
void
|
|
ispell_op()
|
|
{
|
|
char name[128];
|
|
char string[256];
|
|
int pid;
|
|
|
|
if (restrict_mode())
|
|
{
|
|
return;
|
|
}
|
|
pid = getpid();
|
|
sprintf(name, "/tmp/ee.%d", pid);
|
|
if (write_file(name))
|
|
{
|
|
sprintf(string, "ispell %s", name);
|
|
sh_command(string);
|
|
delete_text();
|
|
tmp_file = name;
|
|
recv_file = TRUE;
|
|
check_fp();
|
|
unlink(name);
|
|
}
|
|
}
|
|
|
|
int
|
|
first_word_len(test_line)
|
|
struct text *test_line;
|
|
{
|
|
int counter;
|
|
char *pnt;
|
|
|
|
if (test_line == NULL)
|
|
return(0);
|
|
|
|
pnt = test_line->line;
|
|
if ((pnt == NULL) || (*pnt == (char) NULL) ||
|
|
(*pnt == '.') || (*pnt == '>'))
|
|
return(0);
|
|
|
|
if ((*pnt == ' ') || (*pnt == '\t'))
|
|
{
|
|
pnt = next_word(pnt);
|
|
}
|
|
|
|
if (*pnt == (char) NULL)
|
|
return(0);
|
|
|
|
counter = 0;
|
|
while ((*pnt != (char) NULL) && ((*pnt != ' ') && (*pnt != '\t')))
|
|
{
|
|
pnt++;
|
|
counter++;
|
|
}
|
|
while ((*pnt != (char) NULL) && ((*pnt == ' ') || (*pnt == '\t')))
|
|
{
|
|
pnt++;
|
|
counter++;
|
|
}
|
|
return(counter);
|
|
}
|
|
|
|
void
|
|
Auto_Format() /* format the paragraph according to set margins */
|
|
{
|
|
int string_count;
|
|
int offset;
|
|
int temp_case;
|
|
int word_len;
|
|
int temp_dwl;
|
|
int tmp_d_line_length;
|
|
int leave_loop = FALSE;
|
|
int status;
|
|
int counter;
|
|
char not_blank;
|
|
char *line;
|
|
char *tmp_srchstr;
|
|
char *temp1, *temp2;
|
|
char *temp_dword;
|
|
char temp_d_char = d_char;
|
|
char *tmp_d_line;
|
|
|
|
/*
|
|
| if observ_margins is not set, or the current line is blank,
|
|
| do not format the current paragraph
|
|
*/
|
|
|
|
if ((!observ_margins) || (Blank_Line(curr_line)))
|
|
return;
|
|
|
|
/*
|
|
| get current position in paragraph, so after formatting, the cursor
|
|
| will be in the same relative position
|
|
*/
|
|
|
|
tmp_d_line = d_line;
|
|
tmp_d_line_length = dlt_line->line_length;
|
|
d_line = NULL;
|
|
auto_format = FALSE;
|
|
offset = position;
|
|
if ((position != 1) && ((*point == ' ') || (*point == '\t') || (position == curr_line->line_length) || (*point == (char) NULL)))
|
|
prev_word();
|
|
temp_dword = d_word;
|
|
temp_dwl = d_wrd_len;
|
|
d_wrd_len = 0;
|
|
d_word = NULL;
|
|
temp_case = case_sen;
|
|
case_sen = TRUE;
|
|
tmp_srchstr = srch_str;
|
|
temp2 = srch_str = (char *) malloc(1 + curr_line->line_length - position);
|
|
if ((*point == ' ') || (*point == '\t'))
|
|
adv_word();
|
|
offset -= position;
|
|
counter = position;
|
|
line = temp1 = point;
|
|
while ((*temp1 != (char) NULL) && (*temp1 != ' ') && (*temp1 != '\t') && (counter < curr_line->line_length))
|
|
{
|
|
*temp2 = *temp1;
|
|
temp2++;
|
|
temp1++;
|
|
counter++;
|
|
}
|
|
*temp2 = (char) NULL;
|
|
if (position != 1)
|
|
bol();
|
|
while (!Blank_Line(curr_line->prev_line))
|
|
bol();
|
|
string_count = 0;
|
|
status = TRUE;
|
|
while ((line != point) && (status))
|
|
{
|
|
status = search(FALSE);
|
|
string_count++;
|
|
}
|
|
|
|
/*
|
|
| now get back to the start of the paragraph to start checking
|
|
*/
|
|
|
|
if (position != 1)
|
|
bol();
|
|
while (!Blank_Line(curr_line->prev_line))
|
|
bol();
|
|
|
|
/*
|
|
| Start going through lines, putting spaces at end of lines if they do
|
|
| not already exist. Check line length, and move words to the next line
|
|
| if they cross the margin. Then get words from the next line if they
|
|
| will fit in before the margin.
|
|
*/
|
|
|
|
counter = 0;
|
|
|
|
while (!leave_loop)
|
|
{
|
|
if (position != curr_line->line_length)
|
|
eol();
|
|
left(TRUE);
|
|
if (*point != ' ')
|
|
{
|
|
right(TRUE);
|
|
insert(' ');
|
|
}
|
|
else
|
|
right(TRUE);
|
|
|
|
not_blank = FALSE;
|
|
|
|
/*
|
|
| fill line if first word on next line will fit
|
|
| in the line without crossing the margin
|
|
*/
|
|
|
|
while ((curr_line->next_line != NULL) &&
|
|
((word_len = first_word_len(curr_line->next_line)) > 0)
|
|
&& ((scr_pos + word_len) < right_margin))
|
|
{
|
|
adv_line();
|
|
if ((*point == ' ') || (*point == '\t'))
|
|
adv_word();
|
|
del_word();
|
|
if (position != 1)
|
|
bol();
|
|
|
|
/*
|
|
| We know this line was not blank before, so
|
|
| make sure that it doesn't have one of the
|
|
| leading characters that indicate the line
|
|
| should not be modified.
|
|
|
|
|
| We also know that this character should not
|
|
| be left as the first character of this line.
|
|
*/
|
|
|
|
if ((Blank_Line(curr_line)) &&
|
|
(curr_line->line[0] != '.') &&
|
|
(curr_line->line[0] != '>'))
|
|
{
|
|
del_line();
|
|
not_blank = FALSE;
|
|
}
|
|
else
|
|
not_blank = TRUE;
|
|
|
|
/*
|
|
| go to end of previous line
|
|
*/
|
|
left(TRUE);
|
|
undel_word();
|
|
eol();
|
|
/*
|
|
| make sure there's a space at the end of the line
|
|
*/
|
|
left(TRUE);
|
|
if (*point != ' ')
|
|
{
|
|
right(TRUE);
|
|
insert(' ');
|
|
}
|
|
else
|
|
right(TRUE);
|
|
}
|
|
|
|
/*
|
|
| make sure line does not cross right margin
|
|
*/
|
|
|
|
while (right_margin <= scr_pos)
|
|
{
|
|
prev_word();
|
|
if (position != 1)
|
|
{
|
|
del_word();
|
|
if (Blank_Line(curr_line->next_line))
|
|
insert_line(TRUE);
|
|
else
|
|
adv_line();
|
|
if ((*point == ' ') || (*point == '\t'))
|
|
adv_word();
|
|
undel_word();
|
|
not_blank = TRUE;
|
|
if (position != 1)
|
|
bol();
|
|
left(TRUE);
|
|
}
|
|
}
|
|
|
|
if ((!Blank_Line(curr_line->next_line)) || (not_blank))
|
|
{
|
|
adv_line();
|
|
counter++;
|
|
}
|
|
else
|
|
leave_loop = TRUE;
|
|
}
|
|
|
|
/*
|
|
| go back to begin of paragraph, put cursor back to original position
|
|
*/
|
|
|
|
if (position != 1)
|
|
bol();
|
|
while ((counter-- > 0) || (!Blank_Line(curr_line->prev_line)))
|
|
bol();
|
|
|
|
/*
|
|
| find word cursor was in
|
|
*/
|
|
|
|
status = TRUE;
|
|
while ((status) && (string_count > 0))
|
|
{
|
|
status = search(FALSE);
|
|
string_count--;
|
|
}
|
|
|
|
/*
|
|
| offset the cursor to where it was before from the start of the word
|
|
*/
|
|
|
|
while (offset > 0)
|
|
{
|
|
offset--;
|
|
right(TRUE);
|
|
}
|
|
|
|
if ((string_count > 0) && (offset < 0))
|
|
{
|
|
while (offset < 0)
|
|
{
|
|
offset++;
|
|
left(TRUE);
|
|
}
|
|
}
|
|
|
|
/*
|
|
| reset flags and strings to what they were before formatting
|
|
*/
|
|
|
|
if (d_word != NULL)
|
|
free(d_word);
|
|
d_word = temp_dword;
|
|
d_wrd_len = temp_dwl;
|
|
case_sen = temp_case;
|
|
free(srch_str);
|
|
srch_str = tmp_srchstr;
|
|
d_char = temp_d_char;
|
|
auto_format = TRUE;
|
|
dlt_line->line_length = tmp_d_line_length;
|
|
d_line = tmp_d_line;
|
|
|
|
formatted = TRUE;
|
|
midscreen(scr_vert, point);
|
|
}
|
|
|
|
void
|
|
modes_op()
|
|
{
|
|
int ret_value;
|
|
int counter;
|
|
char *string;
|
|
|
|
do
|
|
{
|
|
sprintf(modes_menu[1].item_string, "%s %s", mode_strings[1],
|
|
(expand_tabs ? ON : OFF));
|
|
sprintf(modes_menu[2].item_string, "%s %s", mode_strings[2],
|
|
(case_sen ? ON : OFF));
|
|
sprintf(modes_menu[3].item_string, "%s %s", mode_strings[3],
|
|
(observ_margins ? ON : OFF));
|
|
sprintf(modes_menu[4].item_string, "%s %s", mode_strings[4],
|
|
(auto_format ? ON : OFF));
|
|
sprintf(modes_menu[5].item_string, "%s %s", mode_strings[5],
|
|
(eightbit ? ON : OFF));
|
|
sprintf(modes_menu[6].item_string, "%s %s", mode_strings[6],
|
|
(info_window ? ON : OFF));
|
|
sprintf(modes_menu[7].item_string, "%s %s", mode_strings[7],
|
|
(emacs_keys_mode ? ON : OFF));
|
|
sprintf(modes_menu[8].item_string, "%s %d", mode_strings[8],
|
|
right_margin);
|
|
|
|
ret_value = menu_op(modes_menu);
|
|
|
|
switch (ret_value)
|
|
{
|
|
case 1:
|
|
expand_tabs = !expand_tabs;
|
|
break;
|
|
case 2:
|
|
case_sen = !case_sen;
|
|
break;
|
|
case 3:
|
|
observ_margins = !observ_margins;
|
|
break;
|
|
case 4:
|
|
auto_format = !auto_format;
|
|
if (auto_format)
|
|
observ_margins = TRUE;
|
|
break;
|
|
case 5:
|
|
eightbit = !eightbit;
|
|
redraw();
|
|
wnoutrefresh(text_win);
|
|
break;
|
|
case 6:
|
|
if (info_window)
|
|
no_info_window();
|
|
else
|
|
create_info_window();
|
|
break;
|
|
case 7:
|
|
emacs_keys_mode = !emacs_keys_mode;
|
|
if (info_window)
|
|
paint_info_win();
|
|
break;
|
|
case 8:
|
|
string = get_string(margin_prompt, TRUE);
|
|
if (string != NULL)
|
|
{
|
|
counter = atoi(string);
|
|
if (counter > 0)
|
|
right_margin = counter;
|
|
free(string);
|
|
}
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
while (ret_value != 0);
|
|
}
|
|
|
|
char *
|
|
is_in_string(string, substring) /* a strchr() look-alike for systems without
|
|
strchr() */
|
|
char * string, *substring;
|
|
{
|
|
char *full, *sub;
|
|
|
|
for (sub = substring; (sub != NULL) && (*sub != (char)NULL); sub++)
|
|
{
|
|
for (full = string; (full != NULL) && (*full != (char)NULL);
|
|
full++)
|
|
{
|
|
if (*sub == *full)
|
|
return(full);
|
|
}
|
|
}
|
|
return(NULL);
|
|
}
|
|
|
|
/*
|
|
| handle names of the form "~/file", "~user/file",
|
|
| "$HOME/foo", "~/$FOO", etc.
|
|
*/
|
|
|
|
char *
|
|
resolve_name(name)
|
|
char *name;
|
|
{
|
|
char long_buffer[1024];
|
|
char short_buffer[128];
|
|
char *buffer;
|
|
char *slash;
|
|
char *tmp;
|
|
char *start_of_var;
|
|
int offset;
|
|
int index;
|
|
int counter;
|
|
struct passwd *user;
|
|
|
|
if (name[0] == '~')
|
|
{
|
|
if (name[1] == '/')
|
|
{
|
|
index = getuid();
|
|
user = (struct passwd *) getpwuid(index);
|
|
slash = name + 1;
|
|
}
|
|
else
|
|
{
|
|
slash = strchr(name, '/');
|
|
if (slash == NULL)
|
|
return(name);
|
|
*slash = (char) NULL;
|
|
user = (struct passwd *) getpwnam((name + 1));
|
|
*slash = '/';
|
|
}
|
|
if (user == NULL)
|
|
{
|
|
return(name);
|
|
}
|
|
buffer = malloc(strlen(user->pw_dir) + strlen(slash) + 1);
|
|
strcpy(buffer, user->pw_dir);
|
|
strcat(buffer, slash);
|
|
}
|
|
else
|
|
buffer = name;
|
|
|
|
if (is_in_string(buffer, "$"))
|
|
{
|
|
tmp = buffer;
|
|
index = 0;
|
|
|
|
while ((*tmp != (char) NULL) && (index < 1024))
|
|
{
|
|
|
|
while ((*tmp != (char) NULL) && (*tmp != '$') &&
|
|
(index < 1024))
|
|
{
|
|
long_buffer[index] = *tmp;
|
|
tmp++;
|
|
index++;
|
|
}
|
|
|
|
if ((*tmp == '$') && (index < 1024))
|
|
{
|
|
counter = 0;
|
|
start_of_var = tmp;
|
|
tmp++;
|
|
if (*tmp == '{') /* } */ /* bracketed variable name */
|
|
{
|
|
tmp++; /* { */
|
|
while ((*tmp != (char) NULL) &&
|
|
(*tmp != '}') &&
|
|
(counter < 128))
|
|
{
|
|
short_buffer[counter] = *tmp;
|
|
counter++;
|
|
tmp++;
|
|
} /* { */
|
|
if (*tmp == '}')
|
|
tmp++;
|
|
}
|
|
else
|
|
{
|
|
while ((*tmp != (char) NULL) &&
|
|
(*tmp != '/') &&
|
|
(*tmp != '$') &&
|
|
(counter < 128))
|
|
{
|
|
short_buffer[counter] = *tmp;
|
|
counter++;
|
|
tmp++;
|
|
}
|
|
}
|
|
short_buffer[counter] = (char) NULL;
|
|
if ((slash = getenv(short_buffer)) != NULL)
|
|
{
|
|
offset = strlen(slash);
|
|
if ((offset + index) < 1024)
|
|
strcpy(&long_buffer[index], slash);
|
|
index += offset;
|
|
}
|
|
else
|
|
{
|
|
while ((start_of_var != tmp) && (index < 1024))
|
|
{
|
|
long_buffer[index] = *start_of_var;
|
|
start_of_var++;
|
|
index++;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
if (index == 1024)
|
|
return(buffer);
|
|
else
|
|
long_buffer[index] = (char) NULL;
|
|
|
|
if (name != buffer)
|
|
free(buffer);
|
|
buffer = malloc(index + 1);
|
|
strcpy(buffer, long_buffer);
|
|
}
|
|
|
|
return(buffer);
|
|
}
|
|
|
|
int
|
|
restrict_mode()
|
|
{
|
|
if (!restricted)
|
|
return(FALSE);
|
|
|
|
wmove(com_win, 0, 0);
|
|
wprintw(com_win, restricted_msg);
|
|
wclrtoeol(com_win);
|
|
wrefresh(com_win);
|
|
clear_com_win = TRUE;
|
|
return(TRUE);
|
|
}
|
|
|
|
/*
|
|
| The following routine tests the input string against the list of
|
|
| strings, to determine if the string is a unique match with one of the
|
|
| valid values.
|
|
*/
|
|
|
|
int
|
|
unique_test(string, list)
|
|
char *string;
|
|
char *list[];
|
|
{
|
|
int counter;
|
|
int num_match;
|
|
int result;
|
|
|
|
num_match = 0;
|
|
counter = 0;
|
|
while (list[counter] != NULL)
|
|
{
|
|
result = compare(string, list[counter], FALSE);
|
|
if (result)
|
|
num_match++;
|
|
counter++;
|
|
}
|
|
return(num_match);
|
|
}
|
|
|
|
#ifndef NO_CATGETS
|
|
/*
|
|
| Get the catalog entry, and if it got it from the catalog,
|
|
| make a copy, since the buffer will be overwritten by the
|
|
| next call to catgets().
|
|
*/
|
|
|
|
char *
|
|
catgetlocal(number, string)
|
|
int number;
|
|
char *string;
|
|
{
|
|
char *temp1;
|
|
char *temp2;
|
|
|
|
temp1 = catgets(catalog, 1, number, string);
|
|
if (temp1 != string)
|
|
{
|
|
temp2 = malloc(strlen(temp1) + 1);
|
|
strcpy(temp2, temp1);
|
|
temp1 = temp2;
|
|
}
|
|
return(temp1);
|
|
}
|
|
#endif /* NO_CATGETS */
|
|
|
|
/*
|
|
| The following is to allow for using message catalogs which allow
|
|
| the software to be 'localized', that is, to use different languages
|
|
| all with the same binary. For more information, see your system
|
|
| documentation, or the X/Open Internationalization Guide.
|
|
*/
|
|
|
|
void
|
|
strings_init()
|
|
{
|
|
int counter;
|
|
|
|
#ifndef NO_CATGETS
|
|
setlocale(LC_ALL, "");
|
|
catalog = catopen("ee", NL_CAT_LOCALE);
|
|
#endif /* NO_CATGETS */
|
|
|
|
modes_menu[0].item_string = catgetlocal( 1, "modes menu");
|
|
mode_strings[1] = catgetlocal( 2, "tabs to spaces ");
|
|
mode_strings[2] = catgetlocal( 3, "case sensitive search");
|
|
mode_strings[3] = catgetlocal( 4, "margins observed ");
|
|
mode_strings[4] = catgetlocal( 5, "auto-paragraph format");
|
|
mode_strings[5] = catgetlocal( 6, "eightbit characters ");
|
|
mode_strings[6] = catgetlocal( 7, "info window ");
|
|
mode_strings[8] = catgetlocal( 8, "right margin ");
|
|
leave_menu[0].item_string = catgetlocal( 9, "leave menu");
|
|
leave_menu[1].item_string = catgetlocal( 10, "save changes");
|
|
leave_menu[2].item_string = catgetlocal( 11, "no save");
|
|
file_menu[0].item_string = catgetlocal( 12, "file menu");
|
|
file_menu[1].item_string = catgetlocal( 13, "read a file");
|
|
file_menu[2].item_string = catgetlocal( 14, "write a file");
|
|
file_menu[3].item_string = catgetlocal( 15, "save file");
|
|
file_menu[4].item_string = catgetlocal( 16, "print editor contents");
|
|
search_menu[0].item_string = catgetlocal( 17, "search menu");
|
|
search_menu[1].item_string = catgetlocal( 18, "search for ...");
|
|
search_menu[2].item_string = catgetlocal( 19, "search");
|
|
spell_menu[0].item_string = catgetlocal( 20, "spell menu");
|
|
spell_menu[1].item_string = catgetlocal( 21, "use 'spell'");
|
|
spell_menu[2].item_string = catgetlocal( 22, "use 'ispell'");
|
|
misc_menu[0].item_string = catgetlocal( 23, "miscellaneous menu");
|
|
misc_menu[1].item_string = catgetlocal( 24, "format paragraph");
|
|
misc_menu[2].item_string = catgetlocal( 25, "shell command");
|
|
misc_menu[3].item_string = catgetlocal( 26, "check spelling");
|
|
main_menu[0].item_string = catgetlocal( 27, "main menu");
|
|
main_menu[1].item_string = catgetlocal( 28, "leave editor");
|
|
main_menu[2].item_string = catgetlocal( 29, "help");
|
|
main_menu[3].item_string = catgetlocal( 30, "file operations");
|
|
main_menu[4].item_string = catgetlocal( 31, "redraw screen");
|
|
main_menu[5].item_string = catgetlocal( 32, "settings");
|
|
main_menu[6].item_string = catgetlocal( 33, "search");
|
|
main_menu[7].item_string = catgetlocal( 34, "miscellaneous");
|
|
help_text[0] = catgetlocal( 35, "Control keys: ");
|
|
help_text[1] = catgetlocal( 36, "^a ascii code ^i tab ^r right ");
|
|
help_text[2] = catgetlocal( 37, "^b bottom of text ^j newline ^t top of text ");
|
|
help_text[3] = catgetlocal( 38, "^c command ^k delete char ^u up ");
|
|
help_text[4] = catgetlocal( 39, "^d down ^l left ^v undelete word ");
|
|
help_text[5] = catgetlocal( 40, "^e search prompt ^m newline ^w delete word ");
|
|
help_text[6] = catgetlocal( 41, "^f undelete char ^n next page ^x search ");
|
|
help_text[7] = catgetlocal( 42, "^g begin of line ^o end of line ^y delete line ");
|
|
help_text[8] = catgetlocal( 43, "^h backspace ^p prev page ^z undelete line ");
|
|
help_text[9] = catgetlocal( 44, "^[ (escape) menu ESC-Enter: exit ee ");
|
|
help_text[10] = catgetlocal( 45, " ");
|
|
help_text[11] = catgetlocal( 46, "Commands: ");
|
|
help_text[12] = catgetlocal( 47, "help : get this info file : print file name ");
|
|
help_text[13] = catgetlocal( 48, "read : read a file char : ascii code of char ");
|
|
help_text[14] = catgetlocal( 49, "write : write a file case : case sensitive search ");
|
|
help_text[15] = catgetlocal( 50, "exit : leave and save nocase : case insensitive search ");
|
|
help_text[16] = catgetlocal( 51, "quit : leave, no save !cmd : execute \"cmd\" in shell ");
|
|
help_text[17] = catgetlocal( 52, "line : display line # 0-9 : go to line \"#\" ");
|
|
help_text[18] = catgetlocal( 53, "expand : expand tabs noexpand: do not expand tabs ");
|
|
help_text[19] = catgetlocal( 54, " ");
|
|
help_text[20] = catgetlocal( 55, " ee [-i] [-e] [-h] [file(s)] ");
|
|
help_text[21] = catgetlocal( 56, " -i : no information window -e : do not expand tabs -h : no highlight ");
|
|
control_keys[0] = catgetlocal( 57, "^[ (escape) menu ^e search prompt ^y delete line ^u up ^p prev page ");
|
|
control_keys[1] = catgetlocal( 58, "^a ascii code ^x search ^z undelete line ^d down ^n next page ");
|
|
control_keys[2] = catgetlocal( 59, "^b bottom of text ^g begin of line ^w delete word ^l left ");
|
|
control_keys[3] = catgetlocal( 60, "^t top of text ^o end of line ^v undelete word ^r right ");
|
|
control_keys[4] = catgetlocal( 61, "^c command ^k delete char ^f undelete char ESC-Enter: exit ee ");
|
|
command_strings[0] = catgetlocal( 62, "help : get help info |file : print file name |line : print line # ");
|
|
command_strings[1] = catgetlocal( 63, "read : read a file |char : ascii code of char |0-9 : go to line \"#\"");
|
|
command_strings[2] = catgetlocal( 64, "write: write a file |case : case sensitive search |exit : leave and save ");
|
|
command_strings[3] = catgetlocal( 65, "!cmd : shell \"cmd\" |nocase: ignore case in search |quit : leave, no save");
|
|
command_strings[4] = catgetlocal( 66, "expand: expand tabs |noexpand: do not expand tabs ");
|
|
com_win_message = catgetlocal( 67, " press Escape (^[) for menu");
|
|
no_file_string = catgetlocal( 68, "no file");
|
|
ascii_code_str = catgetlocal( 69, "ascii code: ");
|
|
printer_msg_str = catgetlocal( 70, "sending contents of buffer to \"%s\" ");
|
|
command_str = catgetlocal( 71, "command: ");
|
|
file_write_prompt_str = catgetlocal( 72, "name of file to write: ");
|
|
file_read_prompt_str = catgetlocal( 73, "name of file to read: ");
|
|
char_str = catgetlocal( 74, "character = %d");
|
|
unkn_cmd_str = catgetlocal( 75, "unknown command \"%s\"");
|
|
non_unique_cmd_msg = catgetlocal( 76, "entered command is not unique");
|
|
line_num_str = catgetlocal( 77, "line %d ");
|
|
line_len_str = catgetlocal( 78, "length = %d");
|
|
current_file_str = catgetlocal( 79, "current file is \"%s\" ");
|
|
usage0 = catgetlocal( 80, "usage: %s [-i] [-e] [-h] [+line_number] [file(s)]\n");
|
|
usage1 = catgetlocal( 81, " -i turn off info window\n");
|
|
usage2 = catgetlocal( 82, " -e do not convert tabs to spaces\n");
|
|
usage3 = catgetlocal( 83, " -h do not use highlighting\n");
|
|
file_is_dir_msg = catgetlocal( 84, "file \"%s\" is a directory");
|
|
new_file_msg = catgetlocal( 85, "new file \"%s\"");
|
|
cant_open_msg = catgetlocal( 86, "can't open \"%s\"");
|
|
open_file_msg = catgetlocal( 87, "file \"%s\", %d lines");
|
|
file_read_fin_msg = catgetlocal( 88, "finished reading file \"%s\"");
|
|
reading_file_msg = catgetlocal( 89, "reading file \"%s\"");
|
|
read_only_msg = catgetlocal( 90, ", read only");
|
|
file_read_lines_msg = catgetlocal( 91, "file \"%s\", %d lines");
|
|
save_file_name_prompt = catgetlocal( 92, "enter name of file: ");
|
|
file_not_saved_msg = catgetlocal( 93, "no filename entered: file not saved");
|
|
changes_made_prompt = catgetlocal( 94, "changes have been made, are you sure? (y/n [n]) ");
|
|
yes_char = catgetlocal( 95, "y");
|
|
file_exists_prompt = catgetlocal( 96, "file already exists, overwrite? (y/n) [n] ");
|
|
create_file_fail_msg = catgetlocal( 97, "unable to create file \"%s\"");
|
|
writing_file_msg = catgetlocal( 98, "writing file \"%s\"");
|
|
file_written_msg = catgetlocal( 99, "\"%s\" %d lines, %d characters");
|
|
searching_msg = catgetlocal( 100, " ...searching");
|
|
str_not_found_msg = catgetlocal( 101, "string \"%s\" not found");
|
|
search_prompt_str = catgetlocal( 102, "search for: ");
|
|
exec_err_msg = catgetlocal( 103, "could not exec %s");
|
|
continue_msg = catgetlocal( 104, "press return to continue ");
|
|
menu_cancel_msg = catgetlocal( 105, "press Esc to cancel");
|
|
menu_size_err_msg = catgetlocal( 106, "menu too large for window");
|
|
press_any_key_msg = catgetlocal( 107, "press any key to continue ");
|
|
shell_prompt = catgetlocal( 108, "shell command: ");
|
|
formatting_msg = catgetlocal( 109, "...formatting paragraph...");
|
|
shell_echo_msg = catgetlocal( 110, "<!echo 'list of unrecognized words'; echo -=-=-=-=-=-");
|
|
spell_in_prog_msg = catgetlocal( 111, "sending contents of edit buffer to 'spell'");
|
|
margin_prompt = catgetlocal( 112, "right margin is: ");
|
|
restricted_msg = catgetlocal( 113, "restricted mode: unable to perform requested operation");
|
|
ON = catgetlocal( 114, "ON");
|
|
OFF = catgetlocal( 115, "OFF");
|
|
HELP = catgetlocal( 116, "HELP");
|
|
WRITE = catgetlocal( 117, "WRITE");
|
|
READ = catgetlocal( 118, "READ");
|
|
LINE = catgetlocal( 119, "LINE");
|
|
FILE_str = catgetlocal( 120, "FILE");
|
|
CHARACTER = catgetlocal( 121, "CHARACTER");
|
|
REDRAW = catgetlocal( 122, "REDRAW");
|
|
RESEQUENCE = catgetlocal( 123, "RESEQUENCE");
|
|
AUTHOR = catgetlocal( 124, "AUTHOR");
|
|
VERSION = catgetlocal( 125, "VERSION");
|
|
CASE = catgetlocal( 126, "CASE");
|
|
NOCASE = catgetlocal( 127, "NOCASE");
|
|
EXPAND = catgetlocal( 128, "EXPAND");
|
|
NOEXPAND = catgetlocal( 129, "NOEXPAND");
|
|
Exit_string = catgetlocal( 130, "EXIT");
|
|
QUIT_string = catgetlocal( 131, "QUIT");
|
|
INFO = catgetlocal( 132, "INFO");
|
|
NOINFO = catgetlocal( 133, "NOINFO");
|
|
MARGINS = catgetlocal( 134, "MARGINS");
|
|
NOMARGINS = catgetlocal( 135, "NOMARGINS");
|
|
AUTOFORMAT = catgetlocal( 136, "AUTOFORMAT");
|
|
NOAUTOFORMAT = catgetlocal( 137, "NOAUTOFORMAT");
|
|
Echo = catgetlocal( 138, "ECHO");
|
|
PRINTCOMMAND = catgetlocal( 139, "PRINTCOMMAND");
|
|
RIGHTMARGIN = catgetlocal( 140, "RIGHTMARGIN");
|
|
HIGHLIGHT = catgetlocal( 141, "HIGHLIGHT");
|
|
NOHIGHLIGHT = catgetlocal( 142, "NOHIGHLIGHT");
|
|
EIGHTBIT = catgetlocal( 143, "EIGHTBIT");
|
|
NOEIGHTBIT = catgetlocal( 144, "NOEIGHTBIT");
|
|
/*
|
|
| additions
|
|
*/
|
|
mode_strings[7] = catgetlocal( 145, "emacs key bindings ");
|
|
emacs_help_text[0] = help_text[0];
|
|
emacs_help_text[1] = catgetlocal( 146, "^a beginning of line ^i tab ^r restore word ");
|
|
emacs_help_text[2] = catgetlocal( 147, "^b back 1 char ^j undel char ^t top of text ");
|
|
emacs_help_text[3] = catgetlocal( 148, "^c command ^k delete line ^u bottom of text ");
|
|
emacs_help_text[4] = catgetlocal( 149, "^d delete char ^l undelete line ^v next page ");
|
|
emacs_help_text[5] = catgetlocal( 150, "^e end of line ^m newline ^w delete word ");
|
|
emacs_help_text[6] = catgetlocal( 151, "^f forward 1 char ^n next line ^x search ");
|
|
emacs_help_text[7] = catgetlocal( 152, "^g go back 1 page ^o ascii char insert ^y search prompt ");
|
|
emacs_help_text[8] = catgetlocal( 153, "^h backspace ^p prev line ^z next word ");
|
|
emacs_help_text[9] = help_text[9];
|
|
emacs_help_text[10] = help_text[10];
|
|
emacs_help_text[11] = help_text[11];
|
|
emacs_help_text[12] = help_text[12];
|
|
emacs_help_text[13] = help_text[13];
|
|
emacs_help_text[14] = help_text[14];
|
|
emacs_help_text[15] = help_text[15];
|
|
emacs_help_text[16] = help_text[16];
|
|
emacs_help_text[17] = help_text[17];
|
|
emacs_help_text[18] = help_text[18];
|
|
emacs_help_text[19] = help_text[19];
|
|
emacs_help_text[20] = help_text[20];
|
|
emacs_help_text[21] = help_text[21];
|
|
emacs_control_keys[0] = catgetlocal( 154, "^[ (escape) menu ^y search prompt ^k delete line ^p prev line ^g prev page");
|
|
emacs_control_keys[1] = catgetlocal( 155, "^o ascii code ^x search ^l undelete line ^n next line ^v next page");
|
|
emacs_control_keys[2] = catgetlocal( 156, "^u end of file ^a begin of line ^w delete word ^b back char ^z next word");
|
|
emacs_control_keys[3] = catgetlocal( 157, "^t top of text ^e end of line ^r restore word ^f forward char ");
|
|
emacs_control_keys[4] = catgetlocal( 158, "^c command ^d delete char ^j undelete char ESC-Enter: exit");
|
|
EMACS_string = catgetlocal( 159, "EMACS");
|
|
NOEMACS_string = catgetlocal( 160, "NOEMACS");
|
|
usage4 = catgetlocal( 161, " +# put cursor at line #\n");
|
|
conf_dump_err_msg = catgetlocal( 162, "unable to open .init.ee for writing, no configuration saved!");
|
|
conf_dump_success_msg = catgetlocal( 163, "ee configuration saved in file %s");
|
|
modes_menu[9].item_string = catgetlocal( 164, "save editor configuration");
|
|
config_dump_menu[0].item_string = catgetlocal( 165, "save ee configuration");
|
|
config_dump_menu[1].item_string = catgetlocal( 166, "save in current directory");
|
|
config_dump_menu[2].item_string = catgetlocal( 167, "save in home directory");
|
|
conf_not_saved_msg = catgetlocal( 168, "ee configuration not saved");
|
|
ree_no_file_msg = catgetlocal( 169, "must specify a file when invoking ree");
|
|
cancel_string = catgetlocal( 170, "press Esc to cancel");
|
|
menu_too_lrg_msg = catgetlocal( 180, "menu too large for window");
|
|
more_above_str = catgetlocal( 181, "^^more^^");
|
|
more_below_str = catgetlocal( 182, "VVmoreVV");
|
|
|
|
commands[0] = HELP;
|
|
commands[1] = WRITE;
|
|
commands[2] = READ;
|
|
commands[3] = LINE;
|
|
commands[4] = FILE_str;
|
|
commands[5] = REDRAW;
|
|
commands[6] = RESEQUENCE;
|
|
commands[7] = AUTHOR;
|
|
commands[8] = VERSION;
|
|
commands[9] = CASE;
|
|
commands[10] = NOCASE;
|
|
commands[11] = EXPAND;
|
|
commands[12] = NOEXPAND;
|
|
commands[13] = Exit_string;
|
|
commands[14] = QUIT_string;
|
|
commands[15] = "<";
|
|
commands[16] = ">";
|
|
commands[17] = "!";
|
|
commands[18] = "0";
|
|
commands[19] = "1";
|
|
commands[20] = "2";
|
|
commands[21] = "3";
|
|
commands[22] = "4";
|
|
commands[23] = "5";
|
|
commands[24] = "6";
|
|
commands[25] = "7";
|
|
commands[26] = "8";
|
|
commands[27] = "9";
|
|
commands[28] = CHARACTER;
|
|
commands[29] = NULL;
|
|
init_strings[0] = CASE;
|
|
init_strings[1] = NOCASE;
|
|
init_strings[2] = EXPAND;
|
|
init_strings[3] = NOEXPAND;
|
|
init_strings[4] = INFO;
|
|
init_strings[5] = NOINFO;
|
|
init_strings[6] = MARGINS;
|
|
init_strings[7] = NOMARGINS;
|
|
init_strings[8] = AUTOFORMAT;
|
|
init_strings[9] = NOAUTOFORMAT;
|
|
init_strings[10] = Echo;
|
|
init_strings[11] = PRINTCOMMAND;
|
|
init_strings[12] = RIGHTMARGIN;
|
|
init_strings[13] = HIGHLIGHT;
|
|
init_strings[14] = NOHIGHLIGHT;
|
|
init_strings[15] = EIGHTBIT;
|
|
init_strings[16] = NOEIGHTBIT;
|
|
init_strings[17] = EMACS_string;
|
|
init_strings[18] = NOEMACS_string;
|
|
init_strings[19] = NULL;
|
|
|
|
/*
|
|
| allocate space for strings here for settings menu
|
|
*/
|
|
|
|
for (counter = 1; counter < NUM_MODES_ITEMS; counter++)
|
|
{
|
|
modes_menu[counter].item_string = malloc(80);
|
|
}
|
|
|
|
#ifndef NO_CATGETS
|
|
catclose(catalog);
|
|
#endif /* NO_CATGETS */
|
|
}
|
|
|