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180 lines
3.7 KiB
C
180 lines
3.7 KiB
C
/* sts.c -- Implementation File (module.c template V1.0)
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Copyright (C) 1995 Free Software Foundation, Inc.
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Contributed by James Craig Burley.
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This file is part of GNU Fortran.
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GNU Fortran is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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GNU Fortran is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GNU Fortran; see the file COPYING. If not, write to
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the Free Software Foundation, 59 Temple Place - Suite 330, Boston, MA
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02111-1307, USA.
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Related Modules:
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None (despite the name, it doesn't really depend on ffest*)
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Description:
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Provides an arbitrary-length string facility for the limited needs of
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GNU Fortran FORMAT statement generation.
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Modifications:
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*/
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/* Include files. */
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#include "proj.h"
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#include "sts.h"
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#include "com.h"
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#include "malloc.h"
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/* Externals defined here. */
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/* Simple definitions and enumerations. */
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/* Internal typedefs. */
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/* Private include files. */
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/* Internal structure definitions. */
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/* Static objects accessed by functions in this module. */
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/* Static functions (internal). */
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/* Internal macros. */
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/* ffests_kill -- Kill a varying-length string
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ffests s;
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ffests_kill(s);
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The storage associated with the string <s> is freed. */
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void
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ffests_kill (ffests s)
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{
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if (s->text_ != NULL)
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malloc_kill_ksr (s->pool_, s->text_, s->max_);
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}
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/* ffests_new -- Make a varying-length string
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ffests s;
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ffests_new(s,malloc_pool_image(),0);
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The string is initialized to hold, in this case, 0 characters, and
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current and future heap manipulations to hold the string will use
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the image pool. */
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void
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ffests_new (ffests s, mallocPool pool, ffestsLength size)
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{
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s->pool_ = pool;
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s->len_ = 0;
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s->max_ = size;
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if (size == 0)
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s->text_ = NULL;
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else
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s->text_ = malloc_new_ksr (pool, "ffests", size);
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}
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/* ffests_printf -- printf ("...%ld...",(long)) to a string
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ffests s;
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ffests_printf (s,"...%ld...",1);
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Like printf, but into a string. */
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void
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ffests_printf (ffests s, const char *ctl, ...)
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{
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char *string;
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va_list ap;
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va_start (ap, ctl);
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if (vasprintf (&string, ctl, ap) == 0)
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abort ();
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va_end (ap);
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ffests_puts (s, string);
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free (string);
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}
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/* ffests_putc -- Put a single character into string
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ffests s;
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ffests_putc(s,'*'); */
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void
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ffests_putc (ffests s, char c)
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{
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ffests_puttext (s, &c, 1);
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}
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/* ffests_puts -- Put a zero-terminated (C-style) string into string
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ffests s;
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ffests_puts(s,"append me"); */
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void
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ffests_puts (ffests s, const char *string)
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{
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ffests_puttext (s, string, strlen (string));
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}
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/* ffests_puttext -- Put a number of characters into string
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ffests s;
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ffests_puttext(s,"hi there",8);
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The string need not be 0-terminated, because the passed length is used,
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and may be 0. */
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void
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ffests_puttext (ffests s, const char *text, ffestsLength length)
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{
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ffestsLength newlen;
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ffestsLength newmax;
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if (length <= 0)
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return;
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newlen = s->len_ + length;
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if (newlen > s->max_)
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{
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if (s->text_ == NULL)
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{
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s->max_ = 40;
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s->text_ = malloc_new_ksr (s->pool_, "ffests", s->max_);
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}
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else
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{
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newmax = s->max_ << 1;
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while (newmax < newlen)
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newmax <<= 1;
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s->text_ = malloc_resize_ksr (s->pool_, s->text_, newmax, s->max_);
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s->max_ = newmax;
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}
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}
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memcpy (s->text_ + s->len_, text, length);
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s->len_ = newlen;
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}
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