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freebsd/contrib/tcsh/ed.chared.c
Mark Peek a15e6f9a9a Update to tcsh 6.17.00. 
Approved by:	re (kensmith)
2009-07-11 05:35:08 +00:00

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/* $Header: /p/tcsh/cvsroot/tcsh/ed.chared.c,v 3.95 2009/06/25 21:15:37 christos Exp $ */
/*
* ed.chared.c: Character editing functions.
*/
/*-
* Copyright (c) 1980, 1991 The Regents of the University of California.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
/*
Bjorn Knutsson @ Thu Jun 24 19:02:17 1999
e_dabbrev_expand() did not do proper completion if quoted spaces were present
in the string being completed. Exemple:
# echo hello\ world
hello world
# echo h<press key bound to dabbrev-expande>
# echo hello\<cursor>
Correct behavior is:
# echo h<press key bound to dabbrev-expande>
# echo hello\ world<cursor>
The same problem occured if spaces were present in a string withing quotation
marks. Example:
# echo "hello world"
hello world
# echo "h<press key bound to dabbrev-expande>
# echo "hello<cursor>
The former problem could be solved with minor modifications of c_preword()
and c_endword(). The latter, however, required a significant rewrite of
c_preword(), since quoted strings must be parsed from start to end to
determine if a given character is inside or outside the quotation marks.
Compare the following two strings:
# echo \"" 'foo \' bar\"
" 'foo \' bar\
# echo '\"" 'foo \' bar\"
\"" foo ' bar"
The only difference between the two echo lines is in the first character
after the echo command. The result is either one or three arguments.
*/
#include "sh.h"
RCSID("$tcsh: ed.chared.c,v 3.95 2009/06/25 21:15:37 christos Exp $")
#include "ed.h"
#include "tw.h"
#include "ed.defns.h"
/* #define SDEBUG */
#define TCSHOP_NOP 0x00
#define TCSHOP_DELETE 0x01
#define TCSHOP_INSERT 0x02
#define TCSHOP_CHANGE 0x04
#define CHAR_FWD 0
#define CHAR_BACK 1
/*
* vi word treatment
* from: Gert-Jan Vons <vons@cesar.crbca1.sinet.slb.com>
*/
#define C_CLASS_WHITE 1
#define C_CLASS_ALNUM 2
#define C_CLASS_OTHER 3
static Char *InsertPos = InputBuf; /* Where insertion starts */
static Char *ActionPos = 0; /* Where action begins */
static int ActionFlag = TCSHOP_NOP; /* What delayed action to take */
/*
* Word search state
*/
static int searchdir = F_UP_SEARCH_HIST; /* Direction of last search */
static struct Strbuf patbuf; /* = Strbuf_INIT; Search target */
/*
* Char search state
*/
static int srch_dir = CHAR_FWD; /* Direction of last search */
static Char srch_char = 0; /* Search target */
/* all routines that start with c_ are private to this set of routines */
static void c_alternativ_key_map (int);
void c_insert (int);
void c_delafter (int);
void c_delbefore (int);
static int c_to_class (Char);
static Char *c_prev_word (Char *, Char *, int);
static Char *c_next_word (Char *, Char *, int);
static Char *c_number (Char *, int *, int);
static Char *c_expand (Char *);
static int c_excl (Char *);
static int c_substitute (void);
static void c_delfini (void);
static int c_hmatch (Char *);
static void c_hsetpat (void);
#ifdef COMMENT
static void c_get_word (Char **, Char **);
#endif
static Char *c_preword (Char *, Char *, int, Char *);
static Char *c_nexword (Char *, Char *, int);
static Char *c_endword (Char *, Char *, int, Char *);
static Char *c_eword (Char *, Char *, int);
static void c_push_kill (Char *, Char *);
static void c_save_inputbuf (void);
static CCRETVAL c_search_line (Char *, int);
static CCRETVAL v_repeat_srch (int);
static CCRETVAL e_inc_search (int);
#ifdef notyet
static CCRETVAL e_insert_str (Char *);
#endif
static CCRETVAL v_search (int);
static CCRETVAL v_csearch_fwd (Char, int, int);
static CCRETVAL v_action (int);
static CCRETVAL v_csearch_back (Char, int, int);
static void
c_alternativ_key_map(int state)
{
switch (state) {
case 0:
CurrentKeyMap = CcKeyMap;
break;
case 1:
CurrentKeyMap = CcAltMap;
break;
default:
return;
}
AltKeyMap = (Char) state;
}
void
c_insert(int num)
{
Char *cp;
if (LastChar + num >= InputLim)
return; /* can't go past end of buffer */
if (Cursor < LastChar) { /* if I must move chars */
for (cp = LastChar; cp >= Cursor; cp--)
cp[num] = *cp;
if (Mark && Mark > Cursor)
Mark += num;
}
LastChar += num;
}
void
c_delafter(int num)
{
Char *cp, *kp = NULL;
if (num > LastChar - Cursor)
num = (int) (LastChar - Cursor); /* bounds check */
if (num > 0) { /* if I can delete anything */
if (VImode) {
kp = UndoBuf; /* Set Up for VI undo command */
UndoAction = TCSHOP_INSERT;
UndoSize = num;
UndoPtr = Cursor;
for (cp = Cursor; cp <= LastChar; cp++) {
*kp++ = *cp; /* Save deleted chars into undobuf */
*cp = cp[num];
}
}
else
for (cp = Cursor; cp + num <= LastChar; cp++)
*cp = cp[num];
LastChar -= num;
/* Mark was within the range of the deleted word? */
if (Mark && Mark > Cursor && Mark <= Cursor+num)
Mark = Cursor;
/* Mark after the deleted word? */
else if (Mark && Mark > Cursor)
Mark -= num;
}
#ifdef notdef
else {
/*
* XXX: We don't want to do that. In emacs mode overwrite should be
* sticky. I am not sure how that affects vi mode
*/
inputmode = MODE_INSERT;
}
#endif /* notdef */
}
void
c_delbefore(int num) /* delete before dot, with bounds checking */
{
Char *cp, *kp = NULL;
if (num > Cursor - InputBuf)
num = (int) (Cursor - InputBuf); /* bounds check */
if (num > 0) { /* if I can delete anything */
if (VImode) {
kp = UndoBuf; /* Set Up for VI undo command */
UndoAction = TCSHOP_INSERT;
UndoSize = num;
UndoPtr = Cursor - num;
for (cp = Cursor - num; cp <= LastChar; cp++) {
*kp++ = *cp;
*cp = cp[num];
}
}
else
for (cp = Cursor - num; cp + num <= LastChar; cp++)
*cp = cp[num];
LastChar -= num;
Cursor -= num;
/* Mark was within the range of the deleted word? */
if (Mark && Mark > Cursor && Mark <= Cursor+num)
Mark = Cursor;
/* Mark after the deleted word? */
else if (Mark && Mark > Cursor)
Mark -= num;
}
}
static Char *
c_preword(Char *p, Char *low, int n, Char *delim)
{
while (n--) {
Char *prev = low;
Char *new;
while (prev < p) { /* Skip initial non-word chars */
if (!Strchr(delim, *prev) || *(prev-1) == (Char)'\\')
break;
prev++;
}
new = prev;
while (new < p) {
prev = new;
new = c_endword(prev-1, p, 1, delim); /* Skip to next non-word char */
new++; /* Step away from end of word */
while (new <= p) { /* Skip trailing non-word chars */
if (!Strchr(delim, *new) || *(new-1) == (Char)'\\')
break;
new++;
}
}
p = prev; /* Set to previous word start */
}
if (p < low)
p = low;
return (p);
}
/*
* c_to_class() returns the class of the given character.
*
* This is used to make the c_prev_word() and c_next_word() functions
* work like vi's, which classify characters. A word is a sequence of
* characters belonging to the same class, classes being defined as
* follows:
*
* 1/ whitespace
* 2/ alphanumeric chars, + underscore
* 3/ others
*/
static int
c_to_class(Char ch)
{
if (Isspace(ch))
return C_CLASS_WHITE;
if (Isdigit(ch) || Isalpha(ch) || ch == '_')
return C_CLASS_ALNUM;
return C_CLASS_OTHER;
}
static Char *
c_prev_word(Char *p, Char *low, int n)
{
p--;
if (!VImode) {
while (n--) {
while ((p >= low) && !isword(*p))
p--;
while ((p >= low) && isword(*p))
p--;
}
/* cp now points to one character before the word */
p++;
if (p < low)
p = low;
/* cp now points where we want it */
return(p);
}
while (n--) {
int c_class;
if (p < low)
break;
/* scan until beginning of current word (may be all whitespace!) */
c_class = c_to_class(*p);
while ((p >= low) && c_class == c_to_class(*p))
p--;
/* if this was a non_whitespace word, we're ready */
if (c_class != C_CLASS_WHITE)
continue;
/* otherwise, move back to beginning of the word just found */
c_class = c_to_class(*p);
while ((p >= low) && c_class == c_to_class(*p))
p--;
}
p++; /* correct overshoot */
return (p);
}
static Char *
c_next_word(Char *p, Char *high, int n)
{
if (!VImode) {
while (n--) {
while ((p < high) && !isword(*p))
p++;
while ((p < high) && isword(*p))
p++;
}
if (p > high)
p = high;
/* p now points where we want it */
return(p);
}
while (n--) {
int c_class;
if (p >= high)
break;
/* scan until end of current word (may be all whitespace!) */
c_class = c_to_class(*p);
while ((p < high) && c_class == c_to_class(*p))
p++;
/* if this was all whitespace, we're ready */
if (c_class == C_CLASS_WHITE)
continue;
/* if we've found white-space at the end of the word, skip it */
while ((p < high) && c_to_class(*p) == C_CLASS_WHITE)
p++;
}
p--; /* correct overshoot */
return (p);
}
static Char *
c_nexword(Char *p, Char *high, int n)
{
while (n--) {
while ((p < high) && !Isspace(*p))
p++;
while ((p < high) && Isspace(*p))
p++;
}
if (p > high)
p = high;
/* p now points where we want it */
return(p);
}
/*
* Expand-History (originally "Magic-Space") code added by
* Ray Moody <ray@gibbs.physics.purdue.edu>
* this is a neat, but odd, addition.
*/
/*
* c_number: Ignore character p points to, return number appearing after that.
* A '$' by itself means a big number; "$-" is for negative; '^' means 1.
* Return p pointing to last char used.
*/
/*
* dval is the number to subtract from for things like $-3
*/
static Char *
c_number(Char *p, int *num, int dval)
{
int i;
int sign = 1;
if (*++p == '^') {
*num = 1;
return(p);
}
if (*p == '$') {
if (*++p != '-') {
*num = INT_MAX; /* Handle $ */
return(--p);
}
sign = -1; /* Handle $- */
++p;
}
for (i = 0; *p >= '0' && *p <= '9'; i = 10 * i + *p++ - '0')
continue;
*num = (sign < 0 ? dval - i : i);
return(--p);
}
/*
* excl_expand: There is an excl to be expanded to p -- do the right thing
* with it and return a version of p advanced over the expanded stuff. Also,
* update tsh_cur and related things as appropriate...
*/
static Char *
c_expand(Char *p)
{
Char *q;
struct Hist *h = Histlist.Hnext;
struct wordent *l;
int i, from, to, dval;
int all_dig;
int been_once = 0;
Char *op = p;
Char *buf;
size_t buf_len;
Char *modbuf;
buf = NULL;
if (!h)
goto excl_err;
excl_sw:
switch (*(q = p + 1)) {
case '^':
buf = expand_lex(&h->Hlex, 1, 1);
break;
case '$':
if ((l = (h->Hlex).prev) != 0)
buf = expand_lex(l->prev->prev, 0, 0);
break;
case '*':
buf = expand_lex(&h->Hlex, 1, INT_MAX);
break;
default:
if (been_once) { /* unknown argument */
/* assume it's a modifier, e.g. !foo:h, and get whole cmd */
buf = expand_lex(&h->Hlex, 0, INT_MAX);
q -= 2;
break;
}
been_once = 1;
if (*q == ':') /* short form: !:arg */
--q;
if (*q != HIST) {
/*
* Search for a space, tab, or colon. See if we have a number (as
* in !1234:xyz). Remember the number.
*/
for (i = 0, all_dig = 1;
*q != ' ' && *q != '\t' && *q != ':' && q < Cursor; q++) {
/*
* PWP: !-4 is a valid history argument too, therefore the test
* is if not a digit, or not a - as the first character.
*/
if ((*q < '0' || *q > '9') && (*q != '-' || q != p + 1))
all_dig = 0;
else if (*q == '-')
all_dig = 2;/* we are sneeky about this */
else
i = 10 * i + *q - '0';
}
--q;
/*
* If we have a number, search for event i. Otherwise, search for
* a named event (as in !foo). (In this case, I is the length of
* the named event).
*/
if (all_dig) {
if (all_dig == 2)
i = -i; /* make it negitive */
if (i < 0) /* if !-4 (for example) */
i = eventno + 1 + i; /* remember: i is < 0 */
for (; h; h = h->Hnext) {
if (h->Hnum == i)
break;
}
}
else {
for (i = (int) (q - p); h; h = h->Hnext) {
if ((l = &h->Hlex) != 0) {
if (!Strncmp(p + 1, l->next->word, (size_t) i))
break;
}
}
}
}
if (!h)
goto excl_err;
if (q[1] == ':' || q[1] == '-' || q[1] == '*' ||
q[1] == '$' || q[1] == '^') { /* get some args */
p = q[1] == ':' ? ++q : q;
/*
* Go handle !foo:*
*/
if ((q[1] < '0' || q[1] > '9') &&
q[1] != '-' && q[1] != '$' && q[1] != '^')
goto excl_sw;
/*
* Go handle !foo:$
*/
if (q[1] == '$' && (q[2] != '-' || q[3] < '0' || q[3] > '9'))
goto excl_sw;
/*
* Count up the number of words in this event. Store it in dval.
* Dval will be fed to number.
*/
dval = 0;
if ((l = h->Hlex.prev) != 0) {
for (l = l->prev; l != h->Hlex.next; l = l->prev, dval++)
continue;
}
if (!dval)
goto excl_err;
if (q[1] == '-')
from = 0;
else
q = c_number(q, &from, dval);
if (q[1] == '-') {
++q;
if ((q[1] < '0' || q[1] > '9') && q[1] != '$')
to = dval - 1;
else
q = c_number(q, &to, dval);
}
else if (q[1] == '*') {
++q;
to = INT_MAX;
}
else {
to = from;
}
if (from < 0 || to < from)
goto excl_err;
buf = expand_lex(&h->Hlex, from, to);
}
else /* get whole cmd */
buf = expand_lex(&h->Hlex, 0, INT_MAX);
break;
}
if (buf == NULL)
buf = SAVE("");
/*
* Apply modifiers, if any.
*/
if (q[1] == ':') {
modbuf = buf;
while (q[1] == ':' && modbuf != NULL) {
switch (q[2]) {
case 'r':
case 'e':
case 'h':
case 't':
case 'q':
case 'x':
case 'u':
case 'l':
if ((modbuf = domod(buf, (int) q[2])) != NULL) {
xfree(buf);
buf = modbuf;
}
++q;
break;
case 'a':
case 'g':
/* Not implemented; this needs to be done before expanding
* lex. We don't have the words available to us anymore.
*/
++q;
break;
case 'p':
/* Ok */
++q;
break;
case '\0':
break;
default:
++q;
break;
}
if (q[1])
++q;
}
}
buf_len = Strlen(buf);
/*
* Now replace the text from op to q inclusive with the text from buf.
*/
q++;
/*
* Now replace text non-inclusively like a real CS major!
*/
if (LastChar + buf_len - (q - op) >= InputLim)
goto excl_err;
(void) memmove(op + buf_len, q, (LastChar - q) * sizeof(Char));
LastChar += buf_len - (q - op);
Cursor += buf_len - (q - op);
(void) memcpy(op, buf, buf_len * sizeof(Char));
*LastChar = '\0';
xfree(buf);
return op + buf_len;
excl_err:
xfree(buf);
SoundBeep();
return(op + 1);
}
/*
* c_excl: An excl has been found at point p -- back up and find some white
* space (or the beginning of the buffer) and properly expand all the excl's
* from there up to the current cursor position. We also avoid (trying to)
* expanding '>!'
* Returns number of expansions attempted (doesn't matter whether they succeeded
* or not).
*/
static int
c_excl(Char *p)
{
int i;
Char *q;
int nr_exp;
/*
* if />[SPC TAB]*![SPC TAB]/, back up p to just after the >. otherwise,
* back p up to just before the current word.
*/
if ((p[1] == ' ' || p[1] == '\t') &&
(p[-1] == ' ' || p[-1] == '\t' || p[-1] == '>')) {
for (q = p - 1; q > InputBuf && (*q == ' ' || *q == '\t'); --q)
continue;
if (*q == '>')
++p;
}
else {
while (*p != ' ' && *p != '\t' && p > InputBuf)
--p;
}
/*
* Forever: Look for history char. (Stop looking when we find the cursor.)
* Count backslashes. If odd, skip history char. Expand if even number of
* backslashes.
*/
nr_exp = 0;
for (;;) {
while (*p != HIST && p < Cursor)
++p;
for (i = 1; (p - i) >= InputBuf && p[-i] == '\\'; i++)
continue;
if (i % 2 == 0)
++p;
if (p >= Cursor) /* all done */
return nr_exp;
if (i % 2 == 1) {
p = c_expand(p);
++nr_exp;
}
}
return nr_exp;
}
static int
c_substitute(void)
{
Char *p;
int nr_exp;
/*
* Start p out one character before the cursor. Move it backwards looking
* for white space, the beginning of the line, or a history character.
*/
for (p = Cursor - 1;
p > InputBuf && *p != ' ' && *p != '\t' && *p != HIST; --p)
continue;
/*
* If we found a history character, go expand it.
*/
if (*p == HIST)
nr_exp = c_excl(p);
else
nr_exp = 0;
Refresh();
return nr_exp;
}
static void
c_delfini(void) /* Finish up delete action */
{
int Size;
if (ActionFlag & TCSHOP_INSERT)
c_alternativ_key_map(0);
ActionFlag = TCSHOP_NOP;
if (ActionPos == 0)
return;
UndoAction = TCSHOP_INSERT;
if (Cursor > ActionPos) {
Size = (int) (Cursor-ActionPos);
c_delbefore(Size);
RefCursor();
}
else if (Cursor < ActionPos) {
Size = (int)(ActionPos-Cursor);
c_delafter(Size);
}
else {
Size = 1;
c_delafter(Size);
}
UndoPtr = Cursor;
UndoSize = Size;
}
static Char *
c_endword(Char *p, Char *high, int n, Char *delim)
{
Char inquote = 0;
p++;
while (n--) {
while (p < high) { /* Skip non-word chars */
if (!Strchr(delim, *p) || *(p-1) == (Char)'\\')
break;
p++;
}
while (p < high) { /* Skip string */
if ((*p == (Char)'\'' || *p == (Char)'"')) { /* Quotation marks? */
if (inquote || *(p-1) != (Char)'\\') { /* Should it be honored? */
if (inquote == 0) inquote = *p;
else if (inquote == *p) inquote = 0;
}
}
/* Break if unquoted non-word char */
if (!inquote && Strchr(delim, *p) && *(p-1) != (Char)'\\')
break;
p++;
}
}
p--;
return(p);
}
static Char *
c_eword(Char *p, Char *high, int n)
{
p++;
while (n--) {
while ((p < high) && Isspace(*p))
p++;
if (Isalnum(*p))
while ((p < high) && Isalnum(*p))
p++;
else
while ((p < high) && !(Isspace(*p) || Isalnum(*p)))
p++;
}
p--;
return(p);
}
/* Set the max length of the kill ring */
void
SetKillRing(int max)
{
CStr *new;
int count, i, j;
if (max < 1)
max = 1; /* no ring, but always one buffer */
if (max == KillRingMax)
return;
new = xcalloc(max, sizeof(CStr));
if (KillRing != NULL) {
if (KillRingLen != 0) {
if (max >= KillRingLen) {
count = KillRingLen;
j = KillPos;
} else {
count = max;
j = (KillPos - count + KillRingLen) % KillRingLen;
}
for (i = 0; i < KillRingLen; i++) {
if (i < count) /* copy latest */
new[i] = KillRing[j];
else /* free the others */
xfree(KillRing[j].buf);
j = (j + 1) % KillRingLen;
}
KillRingLen = count;
KillPos = count % max;
YankPos = count - 1;
}
xfree(KillRing);
}
KillRing = new;
KillRingMax = max;
}
/* Push string from start upto (but not including) end onto kill ring */
static void
c_push_kill(Char *start, Char *end)
{
CStr save, *pos;
Char *dp, *cp, *kp;
int len = end - start, i, j, k;
/* Check for duplicates? */
if (KillRingLen > 0 && (dp = varval(STRkilldup)) != STRNULL) {
YankPos = (KillPos - 1 + KillRingLen) % KillRingLen;
if (eq(dp, STRerase)) { /* erase earlier one (actually move up) */
j = YankPos;
for (i = 0; i < KillRingLen; i++) {
if (Strncmp(KillRing[j].buf, start, (size_t) len) == 0 &&
KillRing[j].buf[len] == '\0') {
save = KillRing[j];
for ( ; i > 0; i--) {
k = j;
j = (j + 1) % KillRingLen;
KillRing[k] = KillRing[j];
}
KillRing[j] = save;
return;
}
j = (j - 1 + KillRingLen) % KillRingLen;
}
} else if (eq(dp, STRall)) { /* skip if any earlier */
for (i = 0; i < KillRingLen; i++)
if (Strncmp(KillRing[i].buf, start, (size_t) len) == 0 &&
KillRing[i].buf[len] == '\0')
return;
} else if (eq(dp, STRprev)) { /* skip if immediately previous */
j = YankPos;
if (Strncmp(KillRing[j].buf, start, (size_t) len) == 0 &&
KillRing[j].buf[len] == '\0')
return;
}
}
/* No duplicate, go ahead and push */
len++; /* need space for '\0' */
YankPos = KillPos;
if (KillRingLen < KillRingMax)
KillRingLen++;
pos = &KillRing[KillPos];
KillPos = (KillPos + 1) % KillRingMax;
if (pos->len < len) {
pos->buf = xrealloc(pos->buf, len * sizeof(Char));
pos->len = len;
}
cp = start;
kp = pos->buf;
while (cp < end)
*kp++ = *cp++;
*kp = '\0';
}
/* Save InputBuf etc in SavedBuf etc for restore after cmd exec */
static void
c_save_inputbuf()
{
SavedBuf.len = 0;
Strbuf_append(&SavedBuf, InputBuf);
Strbuf_terminate(&SavedBuf);
LastSaved = LastChar - InputBuf;
CursSaved = Cursor - InputBuf;
HistSaved = Hist_num;
RestoreSaved = 1;
}
CCRETVAL
GetHistLine()
{
struct Hist *hp;
int h;
if (Hist_num == 0) { /* if really the current line */
if (HistBuf.s != NULL)
copyn(InputBuf, HistBuf.s, INBUFSIZE);/*FIXBUF*/
else
*InputBuf = '\0';
LastChar = InputBuf + HistBuf.len;
#ifdef KSHVI
if (VImode)
Cursor = InputBuf;
else
#endif /* KSHVI */
Cursor = LastChar;
return(CC_REFRESH);
}
hp = Histlist.Hnext;
if (hp == NULL)
return(CC_ERROR);
for (h = 1; h < Hist_num; h++) {
if ((hp->Hnext) == NULL) {
Hist_num = h;
return(CC_ERROR);
}
hp = hp->Hnext;
}
if (HistLit && hp->histline) {
copyn(InputBuf, hp->histline, INBUFSIZE);/*FIXBUF*/
CurrentHistLit = 1;
}
else {
Char *p;
p = sprlex(&hp->Hlex);
copyn(InputBuf, p, sizeof(InputBuf) / sizeof(Char));/*FIXBUF*/
xfree(p);
CurrentHistLit = 0;
}
LastChar = Strend(InputBuf);
if (LastChar > InputBuf) {
if (LastChar[-1] == '\n')
LastChar--;
#if 0
if (LastChar[-1] == ' ')
LastChar--;
#endif
if (LastChar < InputBuf)
LastChar = InputBuf;
}
#ifdef KSHVI
if (VImode)
Cursor = InputBuf;
else
#endif /* KSHVI */
Cursor = LastChar;
return(CC_REFRESH);
}
static CCRETVAL
c_search_line(Char *pattern, int dir)
{
Char *cp;
size_t len;
len = Strlen(pattern);
if (dir == F_UP_SEARCH_HIST) {
for (cp = Cursor; cp >= InputBuf; cp--)
if (Strncmp(cp, pattern, len) == 0 ||
Gmatch(cp, pattern)) {
Cursor = cp;
return(CC_NORM);
}
return(CC_ERROR);
} else {
for (cp = Cursor; *cp != '\0' && cp < InputLim; cp++)
if (Strncmp(cp, pattern, len) == 0 ||
Gmatch(cp, pattern)) {
Cursor = cp;
return(CC_NORM);
}
return(CC_ERROR);
}
}
static CCRETVAL
e_inc_search(int dir)
{
static const Char STRfwd[] = { 'f', 'w', 'd', '\0' },
STRbck[] = { 'b', 'c', 'k', '\0' };
static Char pchar = ':'; /* ':' = normal, '?' = failed */
static Char endcmd[2];
const Char *cp;
Char ch,
*oldCursor = Cursor,
oldpchar = pchar;
CCRETVAL ret = CC_NORM;
int oldHist_num = Hist_num,
oldpatlen = patbuf.len,
newdir = dir,
done, redo;
if (LastChar + sizeof(STRfwd)/sizeof(Char) + 2 + patbuf.len >= InputLim)
return(CC_ERROR);
for (;;) {
if (patbuf.len == 0) { /* first round */
pchar = ':';
Strbuf_append1(&patbuf, '*');
}
done = redo = 0;
*LastChar++ = '\n';
for (cp = newdir == F_UP_SEARCH_HIST ? STRbck : STRfwd;
*cp; *LastChar++ = *cp++)
continue;
*LastChar++ = pchar;
for (cp = &patbuf.s[1]; cp < &patbuf.s[patbuf.len];
*LastChar++ = *cp++)
continue;
*LastChar = '\0';
if (adrof(STRhighlight) && pchar == ':') {
/* if the no-glob-search patch is applied, remove the - 1 below */
IncMatchLen = patbuf.len - 1;
ClearLines();
ClearDisp();
}
Refresh();
if (GetNextChar(&ch) != 1)
return(e_send_eof(0));
switch (ch > NT_NUM_KEYS
? F_INSERT : CurrentKeyMap[(unsigned char) ch]) {
case F_INSERT:
case F_DIGIT:
case F_MAGIC_SPACE:
if (LastChar + 1 >= InputLim) /*FIXBUF*/
SoundBeep();
else {
Strbuf_append1(&patbuf, ch);
*LastChar++ = ch;
*LastChar = '\0';
Refresh();
}
break;
case F_INC_FWD:
newdir = F_DOWN_SEARCH_HIST;
redo++;
break;
case F_INC_BACK:
newdir = F_UP_SEARCH_HIST;
redo++;
break;
case F_DELPREV:
if (patbuf.len > 1)
done++;
else
SoundBeep();
break;
default:
switch (ASC(ch)) {
case 0007: /* ^G: Abort */
ret = CC_ERROR;
done++;
break;
case 0027: /* ^W: Append word */
/* No can do if globbing characters in pattern */
for (cp = &patbuf.s[1]; ; cp++)
if (cp >= &patbuf.s[patbuf.len]) {
Cursor += patbuf.len - 1;
cp = c_next_word(Cursor, LastChar, 1);
while (Cursor < cp && *Cursor != '\n') {
if (LastChar + 1 >= InputLim) {/*FIXBUF*/
SoundBeep();
break;
}
Strbuf_append1(&patbuf, *Cursor);
*LastChar++ = *Cursor++;
}
Cursor = oldCursor;
*LastChar = '\0';
Refresh();
break;
} else if (isglob(*cp)) {
SoundBeep();
break;
}
break;
default: /* Terminate and execute cmd */
endcmd[0] = ch;
PushMacro(endcmd);
/*FALLTHROUGH*/
case 0033: /* ESC: Terminate */
ret = CC_REFRESH;
done++;
break;
}
break;
}
while (LastChar > InputBuf && *LastChar != '\n')
*LastChar-- = '\0';
*LastChar = '\0';
if (!done) {
/* Can't search if unmatched '[' */
for (cp = &patbuf.s[patbuf.len - 1], ch = ']'; cp > patbuf.s; cp--)
if (*cp == '[' || *cp == ']') {
ch = *cp;
break;
}
if (patbuf.len > 1 && ch != '[') {
if (redo && newdir == dir) {
if (pchar == '?') { /* wrap around */
Hist_num = newdir == F_UP_SEARCH_HIST ? 0 : INT_MAX;
if (GetHistLine() == CC_ERROR)
/* Hist_num was fixed by first call */
(void) GetHistLine();
Cursor = newdir == F_UP_SEARCH_HIST ?
LastChar : InputBuf;
} else
Cursor += newdir == F_UP_SEARCH_HIST ? -1 : 1;
}
Strbuf_append1(&patbuf, '*');
Strbuf_terminate(&patbuf);
if (Cursor < InputBuf || Cursor > LastChar ||
(ret = c_search_line(&patbuf.s[1], newdir)) == CC_ERROR) {
LastCmd = (KEYCMD) newdir; /* avoid c_hsetpat */
ret = newdir == F_UP_SEARCH_HIST ?
e_up_search_hist(0) : e_down_search_hist(0);
if (ret != CC_ERROR) {
Cursor = newdir == F_UP_SEARCH_HIST ?
LastChar : InputBuf;
(void) c_search_line(&patbuf.s[1], newdir);
}
}
patbuf.s[--patbuf.len] = '\0';
if (ret == CC_ERROR) {
SoundBeep();
if (Hist_num != oldHist_num) {
Hist_num = oldHist_num;
if (GetHistLine() == CC_ERROR)
return(CC_ERROR);
}
Cursor = oldCursor;
pchar = '?';
} else {
pchar = ':';
}
}
ret = e_inc_search(newdir);
if (ret == CC_ERROR && pchar == '?' && oldpchar == ':') {
/* break abort of failed search at last non-failed */
ret = CC_NORM;
}
}
if (ret == CC_NORM || (ret == CC_ERROR && oldpatlen == 0)) {
/* restore on normal return or error exit */
pchar = oldpchar;
patbuf.len = oldpatlen;
if (Hist_num != oldHist_num) {
Hist_num = oldHist_num;
if (GetHistLine() == CC_ERROR)
return(CC_ERROR);
}
Cursor = oldCursor;
if (ret == CC_ERROR)
Refresh();
}
if (done || ret != CC_NORM)
return(ret);
}
}
static CCRETVAL
v_search(int dir)
{
struct Strbuf tmpbuf = Strbuf_INIT;
Char ch;
Char *oldbuf;
Char *oldlc, *oldc;
cleanup_push(&tmpbuf, Strbuf_cleanup);
oldbuf = Strsave(InputBuf);
cleanup_push(oldbuf, xfree);
oldlc = LastChar;
oldc = Cursor;
Strbuf_append1(&tmpbuf, '*');
InputBuf[0] = '\0';
LastChar = InputBuf;
Cursor = InputBuf;
searchdir = dir;
c_insert(2); /* prompt + '\n' */
*Cursor++ = '\n';
*Cursor++ = dir == F_UP_SEARCH_HIST ? '?' : '/';
Refresh();
for (ch = 0;ch == 0;) {
if (GetNextChar(&ch) != 1) {
cleanup_until(&tmpbuf);
return(e_send_eof(0));
}
switch (ASC(ch)) {
case 0010: /* Delete and backspace */
case 0177:
if (tmpbuf.len > 1) {
*Cursor-- = '\0';
LastChar = Cursor;
tmpbuf.len--;
}
else {
copyn(InputBuf, oldbuf, INBUFSIZE);/*FIXBUF*/
LastChar = oldlc;
Cursor = oldc;
cleanup_until(&tmpbuf);
return(CC_REFRESH);
}
Refresh();
ch = 0;
break;
case 0033: /* ESC */
#ifdef IS_ASCII
case '\r': /* Newline */
case '\n':
#else
case '\012': /* ASCII Line feed */
case '\015': /* ASCII (or EBCDIC) Return */
#endif
break;
default:
Strbuf_append1(&tmpbuf, ch);
*Cursor++ = ch;
LastChar = Cursor;
Refresh();
ch = 0;
break;
}
}
cleanup_until(oldbuf);
if (tmpbuf.len == 1) {
/*
* Use the old pattern, but wild-card it.
*/
if (patbuf.len == 0) {
InputBuf[0] = '\0';
LastChar = InputBuf;
Cursor = InputBuf;
Refresh();
cleanup_until(&tmpbuf);
return(CC_ERROR);
}
if (patbuf.s[0] != '*') {
oldbuf = Strsave(patbuf.s);
patbuf.len = 0;
Strbuf_append1(&patbuf, '*');
Strbuf_append(&patbuf, oldbuf);
xfree(oldbuf);
Strbuf_append1(&patbuf, '*');
Strbuf_terminate(&patbuf);
}
}
else {
Strbuf_append1(&tmpbuf, '*');
Strbuf_terminate(&tmpbuf);
patbuf.len = 0;
Strbuf_append(&patbuf, tmpbuf.s);
Strbuf_terminate(&patbuf);
}
cleanup_until(&tmpbuf);
LastCmd = (KEYCMD) dir; /* avoid c_hsetpat */
Cursor = LastChar = InputBuf;
if ((dir == F_UP_SEARCH_HIST ? e_up_search_hist(0) :
e_down_search_hist(0)) == CC_ERROR) {
Refresh();
return(CC_ERROR);
}
else {
if (ASC(ch) == 0033) {
Refresh();
*LastChar++ = '\n';
*LastChar = '\0';
PastBottom();
return(CC_NEWLINE);
}
else
return(CC_REFRESH);
}
}
/*
* semi-PUBLIC routines. Any routine that is of type CCRETVAL is an
* entry point, called from the CcKeyMap indirected into the
* CcFuncTbl array.
*/
/*ARGSUSED*/
CCRETVAL
v_cmd_mode(Char c)
{
USE(c);
InsertPos = 0;
ActionFlag = TCSHOP_NOP; /* [Esc] cancels pending action */
ActionPos = 0;
DoingArg = 0;
if (UndoPtr > Cursor)
UndoSize = (int)(UndoPtr - Cursor);
else
UndoSize = (int)(Cursor - UndoPtr);
inputmode = MODE_INSERT;
c_alternativ_key_map(1);
#ifdef notdef
/*
* We don't want to move the cursor, because all the editing
* commands don't include the character under the cursor.
*/
if (Cursor > InputBuf)
Cursor--;
#endif
RefCursor();
return(CC_NORM);
}
/*ARGSUSED*/
CCRETVAL
e_unassigned(Char c)
{ /* bound to keys that arn't really assigned */
USE(c);
SoundBeep();
flush();
return(CC_NORM);
}
#ifdef notyet
static CCRETVAL
e_insert_str(Char *c)
{
int i, n;
n = Strlen(c);
if (LastChar + Argument * n >= InputLim)
return(CC_ERROR); /* end of buffer space */
if (inputmode != MODE_INSERT) {
c_delafter(Argument * Strlen(c));
}
c_insert(Argument * n);
while (Argument--) {
for (i = 0; i < n; i++)
*Cursor++ = c[i];
}
Refresh();
return(CC_NORM);
}
#endif
CCRETVAL
e_insert(Char c)
{
#ifndef SHORT_STRINGS
c &= ASCII; /* no meta chars ever */
#endif
if (!c)
return(CC_ERROR); /* no NULs in the input ever!! */
if (LastChar + Argument >= InputLim)
return(CC_ERROR); /* end of buffer space */
if (Argument == 1) { /* How was this optimized ???? */
if (inputmode != MODE_INSERT) {
UndoBuf[UndoSize++] = *Cursor;
UndoBuf[UndoSize] = '\0';
c_delafter(1); /* Do NOT use the saving ONE */
}
c_insert(1);
*Cursor++ = (Char) c;
DoingArg = 0; /* just in case */
RefPlusOne(1); /* fast refresh for one char. */
}
else {
if (inputmode != MODE_INSERT) {
int i;
for(i = 0; i < Argument; i++)
UndoBuf[UndoSize++] = *(Cursor + i);
UndoBuf[UndoSize] = '\0';
c_delafter(Argument); /* Do NOT use the saving ONE */
}
c_insert(Argument);
while (Argument--)
*Cursor++ = (Char) c;
Refresh();
}
if (inputmode == MODE_REPLACE_1)
(void) v_cmd_mode(0);
return(CC_NORM);
}
int
InsertStr(Char *s) /* insert ASCIZ s at cursor (for complete) */
{
int len;
if ((len = (int) Strlen(s)) <= 0)
return -1;
if (LastChar + len >= InputLim)
return -1; /* end of buffer space */
c_insert(len);
while (len--)
*Cursor++ = *s++;
return 0;
}
void
DeleteBack(int n) /* delete the n characters before . */
{
if (n <= 0)
return;
if (Cursor >= &InputBuf[n]) {
c_delbefore(n); /* delete before dot */
}
}
CCRETVAL
e_digit(Char c) /* gray magic here */
{
if (!Isdigit(c))
return(CC_ERROR); /* no NULs in the input ever!! */
if (DoingArg) { /* if doing an arg, add this in... */
if (LastCmd == F_ARGFOUR) /* if last command was ^U */
Argument = c - '0';
else {
if (Argument > 1000000)
return CC_ERROR;
Argument = (Argument * 10) + (c - '0');
}
return(CC_ARGHACK);
}
else {
if (LastChar + 1 >= InputLim)
return CC_ERROR; /* end of buffer space */
if (inputmode != MODE_INSERT) {
UndoBuf[UndoSize++] = *Cursor;
UndoBuf[UndoSize] = '\0';
c_delafter(1); /* Do NOT use the saving ONE */
}
c_insert(1);
*Cursor++ = (Char) c;
DoingArg = 0; /* just in case */
RefPlusOne(1); /* fast refresh for one char. */
}
return(CC_NORM);
}
CCRETVAL
e_argdigit(Char c) /* for ESC-n */
{
#ifdef IS_ASCII
c &= ASCII;
#else
c = CTL_ESC(ASC(c) & ASCII); /* stripping for EBCDIC done the ASCII way */
#endif
if (!Isdigit(c))
return(CC_ERROR); /* no NULs in the input ever!! */
if (DoingArg) { /* if doing an arg, add this in... */
if (Argument > 1000000)
return CC_ERROR;
Argument = (Argument * 10) + (c - '0');
}
else { /* else starting an argument */
Argument = c - '0';
DoingArg = 1;
}
return(CC_ARGHACK);
}
CCRETVAL
v_zero(Char c) /* command mode 0 for vi */
{
if (DoingArg) { /* if doing an arg, add this in... */
if (Argument > 1000000)
return CC_ERROR;
Argument = (Argument * 10) + (c - '0');
return(CC_ARGHACK);
}
else { /* else starting an argument */
Cursor = InputBuf;
if (ActionFlag & TCSHOP_DELETE) {
c_delfini();
return(CC_REFRESH);
}
RefCursor(); /* move the cursor */
return(CC_NORM);
}
}
/*ARGSUSED*/
CCRETVAL
e_newline(Char c)
{ /* always ignore argument */
USE(c);
if (adrof(STRhighlight) && MarkIsSet) {
MarkIsSet = 0;
ClearLines();
ClearDisp();
Refresh();
}
MarkIsSet = 0;
/* PastBottom(); NOW done in ed.inputl.c */
*LastChar++ = '\n'; /* for the benefit of CSH */
*LastChar = '\0'; /* just in case */
if (VImode)
InsertPos = InputBuf; /* Reset editing position */
return(CC_NEWLINE);
}
/*ARGSUSED*/
CCRETVAL
e_newline_hold(Char c)
{
USE(c);
c_save_inputbuf();
HistSaved = 0;
*LastChar++ = '\n'; /* for the benefit of CSH */
*LastChar = '\0'; /* just in case */
return(CC_NEWLINE);
}
/*ARGSUSED*/
CCRETVAL
e_newline_down_hist(Char c)
{
USE(c);
if (Hist_num > 1) {
HistSaved = Hist_num;
}
*LastChar++ = '\n'; /* for the benefit of CSH */
*LastChar = '\0'; /* just in case */
return(CC_NEWLINE);
}
/*ARGSUSED*/
CCRETVAL
e_send_eof(Char c)
{ /* for when ^D is ONLY send-eof */
USE(c);
PastBottom();
*LastChar = '\0'; /* just in case */
return(CC_EOF);
}
/*ARGSUSED*/
CCRETVAL
e_complete(Char c)
{
USE(c);
*LastChar = '\0'; /* just in case */
return(CC_COMPLETE);
}
/*ARGSUSED*/
CCRETVAL
e_complete_back(Char c)
{
USE(c);
*LastChar = '\0'; /* just in case */
return(CC_COMPLETE_BACK);
}
/*ARGSUSED*/
CCRETVAL
e_complete_fwd(Char c)
{
USE(c);
*LastChar = '\0'; /* just in case */
return(CC_COMPLETE_FWD);
}
/*ARGSUSED*/
CCRETVAL
e_complete_all(Char c)
{
USE(c);
*LastChar = '\0'; /* just in case */
return(CC_COMPLETE_ALL);
}
/*ARGSUSED*/
CCRETVAL
v_cm_complete(Char c)
{
USE(c);
if (Cursor < LastChar)
Cursor++;
*LastChar = '\0'; /* just in case */
return(CC_COMPLETE);
}
/*ARGSUSED*/
CCRETVAL
e_toggle_hist(Char c)
{
struct Hist *hp;
int h;
USE(c);
*LastChar = '\0'; /* just in case */
if (Hist_num <= 0) {
return CC_ERROR;
}
hp = Histlist.Hnext;
if (hp == NULL) { /* this is only if no history */
return(CC_ERROR);
}
for (h = 1; h < Hist_num; h++)
hp = hp->Hnext;
if (!CurrentHistLit) {
if (hp->histline) {
copyn(InputBuf, hp->histline, INBUFSIZE);/*FIXBUF*/
CurrentHistLit = 1;
}
else {
return CC_ERROR;
}
}
else {
Char *p;
p = sprlex(&hp->Hlex);
copyn(InputBuf, p, sizeof(InputBuf) / sizeof(Char));/*FIXBUF*/
xfree(p);
CurrentHistLit = 0;
}
LastChar = Strend(InputBuf);
if (LastChar > InputBuf) {
if (LastChar[-1] == '\n')
LastChar--;
if (LastChar[-1] == ' ')
LastChar--;
if (LastChar < InputBuf)
LastChar = InputBuf;
}
#ifdef KSHVI
if (VImode)
Cursor = InputBuf;
else
#endif /* KSHVI */
Cursor = LastChar;
return(CC_REFRESH);
}
/*ARGSUSED*/
CCRETVAL
e_up_hist(Char c)
{
Char beep = 0;
USE(c);
UndoAction = TCSHOP_NOP;
*LastChar = '\0'; /* just in case */
if (Hist_num == 0) { /* save the current buffer away */
HistBuf.len = 0;
Strbuf_append(&HistBuf, InputBuf);
Strbuf_terminate(&HistBuf);
}
Hist_num += Argument;
if (GetHistLine() == CC_ERROR) {
beep = 1;
(void) GetHistLine(); /* Hist_num was fixed by first call */
}
Refresh();
if (beep)
return(CC_ERROR);
else
return(CC_NORM); /* was CC_UP_HIST */
}
/*ARGSUSED*/
CCRETVAL
e_down_hist(Char c)
{
USE(c);
UndoAction = TCSHOP_NOP;
*LastChar = '\0'; /* just in case */
Hist_num -= Argument;
if (Hist_num < 0) {
Hist_num = 0;
return(CC_ERROR); /* make it beep */
}
return(GetHistLine());
}
/*
* c_hmatch() return True if the pattern matches the prefix
*/
static int
c_hmatch(Char *str)
{
if (Strncmp(patbuf.s, str, patbuf.len) == 0)
return 1;
return Gmatch(str, patbuf.s);
}
/*
* c_hsetpat(): Set the history seatch pattern
*/
static void
c_hsetpat(void)
{
if (LastCmd != F_UP_SEARCH_HIST && LastCmd != F_DOWN_SEARCH_HIST) {
patbuf.len = 0;
Strbuf_appendn(&patbuf, InputBuf, Cursor - InputBuf);
Strbuf_terminate(&patbuf);
}
#ifdef SDEBUG
xprintf("\nHist_num = %d\n", Hist_num);
xprintf("patlen = %d\n", (int)patbuf.len);
xprintf("patbuf = \"%S\"\n", patbuf.s);
xprintf("Cursor %d LastChar %d\n", Cursor - InputBuf, LastChar - InputBuf);
#endif
}
/*ARGSUSED*/
CCRETVAL
e_up_search_hist(Char c)
{
struct Hist *hp;
int h;
int found = 0;
USE(c);
ActionFlag = TCSHOP_NOP;
UndoAction = TCSHOP_NOP;
*LastChar = '\0'; /* just in case */
if (Hist_num < 0) {
#ifdef DEBUG_EDIT
xprintf("%s: e_up_search_hist(): Hist_num < 0; resetting.\n", progname);
#endif
Hist_num = 0;
return(CC_ERROR);
}
if (Hist_num == 0) {
HistBuf.len = 0;
Strbuf_append(&HistBuf, InputBuf);
Strbuf_terminate(&HistBuf);
}
hp = Histlist.Hnext;
if (hp == NULL)
return(CC_ERROR);
c_hsetpat(); /* Set search pattern !! */
for (h = 1; h <= Hist_num; h++)
hp = hp->Hnext;
while (hp != NULL) {
Char *hl;
int matched;
if (hp->histline == NULL)
hp->histline = sprlex(&hp->Hlex);
if (HistLit)
hl = hp->histline;
else {
hl = sprlex(&hp->Hlex);
cleanup_push(hl, xfree);
}
#ifdef SDEBUG
xprintf("Comparing with \"%S\"\n", hl);
#endif
matched = (Strncmp(hl, InputBuf, (size_t) (LastChar - InputBuf)) ||
hl[LastChar-InputBuf]) && c_hmatch(hl);
if (!HistLit)
cleanup_until(hl);
if (matched) {
found++;
break;
}
h++;
hp = hp->Hnext;
}
if (!found) {
#ifdef SDEBUG
xprintf("not found\n");
#endif
return(CC_ERROR);
}
Hist_num = h;
return(GetHistLine());
}
/*ARGSUSED*/
CCRETVAL
e_down_search_hist(Char c)
{
struct Hist *hp;
int h;
int found = 0;
USE(c);
ActionFlag = TCSHOP_NOP;
UndoAction = TCSHOP_NOP;
*LastChar = '\0'; /* just in case */
if (Hist_num == 0)
return(CC_ERROR);
hp = Histlist.Hnext;
if (hp == 0)
return(CC_ERROR);
c_hsetpat(); /* Set search pattern !! */
for (h = 1; h < Hist_num && hp; h++) {
Char *hl;
if (hp->histline == NULL)
hp->histline = sprlex(&hp->Hlex);
if (HistLit)
hl = hp->histline;
else {
hl = sprlex(&hp->Hlex);
cleanup_push(hl, xfree);
}
#ifdef SDEBUG
xprintf("Comparing with \"%S\"\n", hl);
#endif
if ((Strncmp(hl, InputBuf, (size_t) (LastChar - InputBuf)) ||
hl[LastChar-InputBuf]) && c_hmatch(hl))
found = h;
if (!HistLit)
cleanup_until(hl);
hp = hp->Hnext;
}
if (!found) { /* is it the current history number? */
if (!c_hmatch(HistBuf.s)) {
#ifdef SDEBUG
xprintf("not found\n");
#endif
return(CC_ERROR);
}
}
Hist_num = found;
return(GetHistLine());
}
/*ARGSUSED*/
CCRETVAL
e_helpme(Char c)
{
USE(c);
PastBottom();
*LastChar = '\0'; /* just in case */
return(CC_HELPME);
}
/*ARGSUSED*/
CCRETVAL
e_correct(Char c)
{
USE(c);
*LastChar = '\0'; /* just in case */
return(CC_CORRECT);
}
/*ARGSUSED*/
CCRETVAL
e_correctl(Char c)
{
USE(c);
*LastChar = '\0'; /* just in case */
return(CC_CORRECT_L);
}
/*ARGSUSED*/
CCRETVAL
e_run_fg_editor(Char c)
{
struct process *pp;
USE(c);
if ((pp = find_stop_ed()) != NULL) {
/* save our editor state so we can restore it */
c_save_inputbuf();
Hist_num = 0; /* for the history commands */
/* put the tty in a sane mode */
PastBottom();
(void) Cookedmode(); /* make sure the tty is set up correctly */
/* do it! */
fg_proc_entry(pp);
(void) Rawmode(); /* go on */
Refresh();
RestoreSaved = 0;
HistSaved = 0;
}
return(CC_NORM);
}
/*ARGSUSED*/
CCRETVAL
e_list_choices(Char c)
{
USE(c);
PastBottom();
*LastChar = '\0'; /* just in case */
return(CC_LIST_CHOICES);
}
/*ARGSUSED*/
CCRETVAL
e_list_all(Char c)
{
USE(c);
PastBottom();
*LastChar = '\0'; /* just in case */
return(CC_LIST_ALL);
}
/*ARGSUSED*/
CCRETVAL
e_list_glob(Char c)
{
USE(c);
PastBottom();
*LastChar = '\0'; /* just in case */
return(CC_LIST_GLOB);
}
/*ARGSUSED*/
CCRETVAL
e_expand_glob(Char c)
{
USE(c);
*LastChar = '\0'; /* just in case */
return(CC_EXPAND_GLOB);
}
/*ARGSUSED*/
CCRETVAL
e_normalize_path(Char c)
{
USE(c);
*LastChar = '\0'; /* just in case */
return(CC_NORMALIZE_PATH);
}
/*ARGSUSED*/
CCRETVAL
e_normalize_command(Char c)
{
USE(c);
*LastChar = '\0'; /* just in case */
return(CC_NORMALIZE_COMMAND);
}
/*ARGSUSED*/
CCRETVAL
e_expand_vars(Char c)
{
USE(c);
*LastChar = '\0'; /* just in case */
return(CC_EXPAND_VARS);
}
/*ARGSUSED*/
CCRETVAL
e_which(Char c)
{ /* do a fast command line which(1) */
USE(c);
c_save_inputbuf();
Hist_num = 0; /* for the history commands */
PastBottom();
*LastChar = '\0'; /* just in case */
return(CC_WHICH);
}
/*ARGSUSED*/
CCRETVAL
e_last_item(Char c)
{ /* insert the last element of the prev. cmd */
struct Hist *hp;
struct wordent *wp, *firstp;
int i;
Char *expanded;
USE(c);
if (Argument <= 0)
return(CC_ERROR);
hp = Histlist.Hnext;
if (hp == NULL) { /* this is only if no history */
return(CC_ERROR);
}
wp = (hp->Hlex).prev;
if (wp->prev == (struct wordent *) NULL)
return(CC_ERROR); /* an empty history entry */
firstp = (hp->Hlex).next;
/* back up arg words in lex */
for (i = 0; i < Argument && wp != firstp; i++) {
wp = wp->prev;
}
expanded = expand_lex(wp->prev, 0, i - 1);
if (InsertStr(expanded)) {
xfree(expanded);
return(CC_ERROR);
}
xfree(expanded);
return(CC_REFRESH);
}
/*ARGSUSED*/
CCRETVAL
e_dabbrev_expand(Char c)
{ /* expand to preceding word matching prefix */
Char *cp, *ncp, *bp;
struct Hist *hp;
int arg = 0, i;
size_t len = 0;
int found = 0;
Char *hbuf;
static int oldevent, hist, word;
static Char *start, *oldcursor;
USE(c);
if (Argument <= 0)
return(CC_ERROR);
cp = c_preword(Cursor, InputBuf, 1, STRshwordsep);
if (cp == Cursor || Isspace(*cp))
return(CC_ERROR);
hbuf = NULL;
hp = Histlist.Hnext;
bp = InputBuf;
if (Argument == 1 && eventno == oldevent && cp == start &&
Cursor == oldcursor && patbuf.len > 0
&& Strncmp(patbuf.s, cp, patbuf.len) == 0){
/* continue previous search - go to last match (hist/word) */
if (hist != 0) { /* need to move up history */
for (i = 1; i < hist && hp != NULL; i++)
hp = hp->Hnext;
if (hp == NULL) /* "can't happen" */
goto err_hbuf;
hbuf = expand_lex(&hp->Hlex, 0, INT_MAX);
cp = Strend(hbuf);
bp = hbuf;
hp = hp->Hnext;
}
cp = c_preword(cp, bp, word, STRshwordsep);
} else { /* starting new search */
oldevent = eventno;
start = cp;
patbuf.len = 0;
Strbuf_appendn(&patbuf, cp, Cursor - cp);
hist = 0;
word = 0;
}
while (!found) {
ncp = c_preword(cp, bp, 1, STRshwordsep);
if (ncp == cp || Isspace(*ncp)) { /* beginning of line */
hist++;
word = 0;
if (hp == NULL)
goto err_hbuf;
hbuf = expand_lex(&hp->Hlex, 0, INT_MAX);
cp = Strend(hbuf);
bp = hbuf;
hp = hp->Hnext;
continue;
} else {
word++;
len = c_endword(ncp-1, cp, 1, STRshwordsep) - ncp + 1;
cp = ncp;
}
if (len > patbuf.len && Strncmp(cp, patbuf.s, patbuf.len) == 0) {
/* We don't fully check distinct matches as Gnuemacs does: */
if (Argument > 1) { /* just count matches */
if (++arg >= Argument)
found++;
} else { /* match if distinct from previous */
if (len != (size_t)(Cursor - start)
|| Strncmp(cp, start, len) != 0)
found++;
}
}
}
if (LastChar + len - (Cursor - start) >= InputLim)
goto err_hbuf; /* no room */
DeleteBack(Cursor - start);
c_insert(len);
while (len--)
*Cursor++ = *cp++;
oldcursor = Cursor;
xfree(hbuf);
return(CC_REFRESH);
err_hbuf:
xfree(hbuf);
return CC_ERROR;
}
/*ARGSUSED*/
CCRETVAL
e_yank_kill(Char c)
{ /* almost like GnuEmacs */
int len;
Char *kp, *cp;
USE(c);
if (KillRingLen == 0) /* nothing killed */
return(CC_ERROR);
len = Strlen(KillRing[YankPos].buf);
if (LastChar + len >= InputLim)
return(CC_ERROR); /* end of buffer space */
/* else */
cp = Cursor; /* for speed */
c_insert(len); /* open the space, */
for (kp = KillRing[YankPos].buf; *kp; kp++) /* copy the chars */
*cp++ = *kp;
if (Argument == 1) { /* if no arg */
Mark = Cursor; /* mark at beginning, cursor at end */
Cursor = cp;
} else {
Mark = cp; /* else cursor at beginning, mark at end */
}
if (adrof(STRhighlight) && MarkIsSet) {
ClearLines();
ClearDisp();
}
MarkIsSet = 0;
return(CC_REFRESH);
}
/*ARGSUSED*/
CCRETVAL
e_yank_pop(Char c)
{ /* almost like GnuEmacs */
int m_bef_c, del_len, ins_len;
Char *kp, *cp;
USE(c);
#if 0
/* XXX This "should" be here, but doesn't work, since LastCmd
gets set on CC_ERROR and CC_ARGHACK, which it shouldn't(?).
(But what about F_ARGFOUR?) I.e. if you hit M-y twice the
second one will "succeed" even if the first one wasn't preceded
by a yank, and giving an argument is impossible. Now we "succeed"
regardless of previous command, which is wrong too of course. */
if (LastCmd != F_YANK_KILL && LastCmd != F_YANK_POP)
return(CC_ERROR);
#endif
if (KillRingLen == 0) /* nothing killed */
return(CC_ERROR);
YankPos -= Argument;
while (YankPos < 0)
YankPos += KillRingLen;
YankPos %= KillRingLen;
if (Cursor > Mark) {
del_len = Cursor - Mark;
m_bef_c = 1;
} else {
del_len = Mark - Cursor;
m_bef_c = 0;
}
ins_len = Strlen(KillRing[YankPos].buf);
if (LastChar + ins_len - del_len >= InputLim)
return(CC_ERROR); /* end of buffer space */
if (m_bef_c) {
c_delbefore(del_len);
} else {
c_delafter(del_len);
}
cp = Cursor; /* for speed */
c_insert(ins_len); /* open the space, */
for (kp = KillRing[YankPos].buf; *kp; kp++) /* copy the chars */
*cp++ = *kp;
if (m_bef_c) {
Mark = Cursor; /* mark at beginning, cursor at end */
Cursor = cp;
} else {
Mark = cp; /* else cursor at beginning, mark at end */
}
if (adrof(STRhighlight) && MarkIsSet) {
ClearLines();
ClearDisp();
}
MarkIsSet = 0;
return(CC_REFRESH);
}
/*ARGSUSED*/
CCRETVAL
v_delprev(Char c) /* Backspace key in insert mode */
{
int rc;
USE(c);
rc = CC_ERROR;
if (InsertPos != 0) {
if (Argument <= Cursor - InsertPos) {
c_delbefore(Argument); /* delete before */
rc = CC_REFRESH;
}
}
return(rc);
} /* v_delprev */
/*ARGSUSED*/
CCRETVAL
e_delprev(Char c)
{
USE(c);
if (Cursor > InputBuf) {
c_delbefore(Argument); /* delete before dot */
return(CC_REFRESH);
}
else {
return(CC_ERROR);
}
}
/*ARGSUSED*/
CCRETVAL
e_delwordprev(Char c)
{
Char *cp;
USE(c);
if (Cursor == InputBuf)
return(CC_ERROR);
/* else */
cp = c_prev_word(Cursor, InputBuf, Argument);
c_push_kill(cp, Cursor); /* save the text */
c_delbefore((int)(Cursor - cp)); /* delete before dot */
return(CC_REFRESH);
}
/* DCS <dcs@neutron.chem.yale.edu>, 9 Oct 93
*
* Changed the names of some of the ^D family of editor functions to
* correspond to what they actually do and created new e_delnext_list
* for completeness.
*
* Old names: New names:
*
* delete-char delete-char-or-eof
* F_DELNEXT F_DELNEXT_EOF
* e_delnext e_delnext_eof
* edelnxt edelnxteof
* delete-char-or-eof delete-char
* F_DELNEXT_EOF F_DELNEXT
* e_delnext_eof e_delnext
* edelnxteof edelnxt
* delete-char-or-list delete-char-or-list-or-eof
* F_LIST_DELNEXT F_DELNEXT_LIST_EOF
* e_list_delnext e_delnext_list_eof
* edellsteof
* (no old equivalent) delete-char-or-list
* F_DELNEXT_LIST
* e_delnext_list
* e_delnxtlst
*/
/* added by mtk@ari.ncl.omron.co.jp (920818) */
/* rename e_delnext() -> e_delnext_eof() */
/*ARGSUSED*/
CCRETVAL
e_delnext(Char c)
{
USE(c);
if (Cursor == LastChar) {/* if I'm at the end */
if (!VImode) {
return(CC_ERROR);
}
else {
if (Cursor != InputBuf)
Cursor--;
else
return(CC_ERROR);
}
}
c_delafter(Argument); /* delete after dot */
if (Cursor > LastChar)
Cursor = LastChar; /* bounds check */
return(CC_REFRESH);
}
/*ARGSUSED*/
CCRETVAL
e_delnext_eof(Char c)
{
USE(c);
if (Cursor == LastChar) {/* if I'm at the end */
if (!VImode) {
if (Cursor == InputBuf) {
/* if I'm also at the beginning */
so_write(STReof, 4);/* then do a EOF */
flush();
return(CC_EOF);
}
else
return(CC_ERROR);
}
else {
if (Cursor != InputBuf)
Cursor--;
else
return(CC_ERROR);
}
}
c_delafter(Argument); /* delete after dot */
if (Cursor > LastChar)
Cursor = LastChar; /* bounds check */
return(CC_REFRESH);
}
/*ARGSUSED*/
CCRETVAL
e_delnext_list(Char c)
{
USE(c);
if (Cursor == LastChar) { /* if I'm at the end */
PastBottom();
*LastChar = '\0'; /* just in case */
return(CC_LIST_CHOICES);
}
else {
c_delafter(Argument); /* delete after dot */
if (Cursor > LastChar)
Cursor = LastChar; /* bounds check */
return(CC_REFRESH);
}
}
/*ARGSUSED*/
CCRETVAL
e_delnext_list_eof(Char c)
{
USE(c);
if (Cursor == LastChar) { /* if I'm at the end */
if (Cursor == InputBuf) { /* if I'm also at the beginning */
so_write(STReof, 4);/* then do a EOF */
flush();
return(CC_EOF);
}
else {
PastBottom();
*LastChar = '\0'; /* just in case */
return(CC_LIST_CHOICES);
}
}
else {
c_delafter(Argument); /* delete after dot */
if (Cursor > LastChar)
Cursor = LastChar; /* bounds check */
return(CC_REFRESH);
}
}
/*ARGSUSED*/
CCRETVAL
e_list_eof(Char c)
{
CCRETVAL rv;
USE(c);
if (Cursor == LastChar && Cursor == InputBuf) {
so_write(STReof, 4); /* then do a EOF */
flush();
rv = CC_EOF;
}
else {
PastBottom();
*LastChar = '\0'; /* just in case */
rv = CC_LIST_CHOICES;
}
return rv;
}
/*ARGSUSED*/
CCRETVAL
e_delwordnext(Char c)
{
Char *cp;
USE(c);
if (Cursor == LastChar)
return(CC_ERROR);
/* else */
cp = c_next_word(Cursor, LastChar, Argument);
c_push_kill(Cursor, cp); /* save the text */
c_delafter((int)(cp - Cursor)); /* delete after dot */
if (Cursor > LastChar)
Cursor = LastChar; /* bounds check */
return(CC_REFRESH);
}
/*ARGSUSED*/
CCRETVAL
e_toend(Char c)
{
USE(c);
Cursor = LastChar;
if (VImode)
if (ActionFlag & TCSHOP_DELETE) {
c_delfini();
return(CC_REFRESH);
}
RefCursor(); /* move the cursor */
return(CC_NORM);
}
/*ARGSUSED*/
CCRETVAL
e_tobeg(Char c)
{
USE(c);
Cursor = InputBuf;
if (VImode) {
while (Isspace(*Cursor)) /* We want FIRST non space character */
Cursor++;
if (ActionFlag & TCSHOP_DELETE) {
c_delfini();
return(CC_REFRESH);
}
}
RefCursor(); /* move the cursor */
return(CC_NORM);
}
/*ARGSUSED*/
CCRETVAL
e_killend(Char c)
{
USE(c);
c_push_kill(Cursor, LastChar); /* copy it */
LastChar = Cursor; /* zap! -- delete to end */
if (Mark > Cursor)
Mark = Cursor;
MarkIsSet = 0;
return(CC_REFRESH);
}
/*ARGSUSED*/
CCRETVAL
e_killbeg(Char c)
{
USE(c);
c_push_kill(InputBuf, Cursor); /* copy it */
c_delbefore((int)(Cursor - InputBuf));
if (Mark && Mark > Cursor)
Mark -= Cursor-InputBuf;
return(CC_REFRESH);
}
/*ARGSUSED*/
CCRETVAL
e_killall(Char c)
{
USE(c);
c_push_kill(InputBuf, LastChar); /* copy it */
Cursor = Mark = LastChar = InputBuf; /* zap! -- delete all of it */
MarkIsSet = 0;
return(CC_REFRESH);
}
/*ARGSUSED*/
CCRETVAL
e_killregion(Char c)
{
USE(c);
if (!Mark)
return(CC_ERROR);
if (Mark > Cursor) {
c_push_kill(Cursor, Mark); /* copy it */
c_delafter((int)(Mark - Cursor)); /* delete it - UNUSED BY VI mode */
Mark = Cursor;
}
else { /* mark is before cursor */
c_push_kill(Mark, Cursor); /* copy it */
c_delbefore((int)(Cursor - Mark));
}
if (adrof(STRhighlight) && MarkIsSet) {
ClearLines();
ClearDisp();
}
MarkIsSet = 0;
return(CC_REFRESH);
}
/*ARGSUSED*/
CCRETVAL
e_copyregion(Char c)
{
USE(c);
if (!Mark)
return(CC_ERROR);
if (Mark > Cursor) {
c_push_kill(Cursor, Mark); /* copy it */
}
else { /* mark is before cursor */
c_push_kill(Mark, Cursor); /* copy it */
}
return(CC_NORM); /* don't even need to Refresh() */
}
/*ARGSUSED*/
CCRETVAL
e_charswitch(Char cc)
{
Char c;
USE(cc);
/* do nothing if we are at beginning of line or have only one char */
if (Cursor == &InputBuf[0] || LastChar == &InputBuf[1]) {
return(CC_ERROR);
}
if (Cursor < LastChar) {
Cursor++;
}
c = Cursor[-2];
Cursor[-2] = Cursor[-1];
Cursor[-1] = c;
return(CC_REFRESH);
}
/*ARGSUSED*/
CCRETVAL
e_gcharswitch(Char cc)
{ /* gosmacs style ^T */
Char c;
USE(cc);
if (Cursor > &InputBuf[1]) {/* must have at least two chars entered */
c = Cursor[-2];
Cursor[-2] = Cursor[-1];
Cursor[-1] = c;
return(CC_REFRESH);
}
else {
return(CC_ERROR);
}
}
/*ARGSUSED*/
CCRETVAL
e_charback(Char c)
{
USE(c);
if (Cursor > InputBuf) {
if (Argument > Cursor - InputBuf)
Cursor = InputBuf;
else
Cursor -= Argument;
if (VImode)
if (ActionFlag & TCSHOP_DELETE) {
c_delfini();
return(CC_REFRESH);
}
RefCursor();
return(CC_NORM);
}
else {
return(CC_ERROR);
}
}
/*ARGSUSED*/
CCRETVAL
v_wordback(Char c)
{
USE(c);
if (Cursor == InputBuf)
return(CC_ERROR);
/* else */
Cursor = c_preword(Cursor, InputBuf, Argument, STRshwspace); /* bounds check */
if (ActionFlag & TCSHOP_DELETE) {
c_delfini();
return(CC_REFRESH);
}
RefCursor();
return(CC_NORM);
}
/*ARGSUSED*/
CCRETVAL
e_wordback(Char c)
{
USE(c);
if (Cursor == InputBuf)
return(CC_ERROR);
/* else */
Cursor = c_prev_word(Cursor, InputBuf, Argument); /* bounds check */
if (VImode)
if (ActionFlag & TCSHOP_DELETE) {
c_delfini();
return(CC_REFRESH);
}
RefCursor();
return(CC_NORM);
}
/*ARGSUSED*/
CCRETVAL
e_charfwd(Char c)
{
USE(c);
if (Cursor < LastChar) {
Cursor += Argument;
if (Cursor > LastChar)
Cursor = LastChar;
if (VImode)
if (ActionFlag & TCSHOP_DELETE) {
c_delfini();
return(CC_REFRESH);
}
RefCursor();
return(CC_NORM);
}
else {
return(CC_ERROR);
}
}
/*ARGSUSED*/
CCRETVAL
e_wordfwd(Char c)
{
USE(c);
if (Cursor == LastChar)
return(CC_ERROR);
/* else */
Cursor = c_next_word(Cursor, LastChar, Argument);
if (VImode)
if (ActionFlag & TCSHOP_DELETE) {
c_delfini();
return(CC_REFRESH);
}
RefCursor();
return(CC_NORM);
}
/*ARGSUSED*/
CCRETVAL
v_wordfwd(Char c)
{
USE(c);
if (Cursor == LastChar)
return(CC_ERROR);
/* else */
Cursor = c_nexword(Cursor, LastChar, Argument);
if (VImode)
if (ActionFlag & TCSHOP_DELETE) {
c_delfini();
return(CC_REFRESH);
}
RefCursor();
return(CC_NORM);
}
/*ARGSUSED*/
CCRETVAL
v_wordbegnext(Char c)
{
USE(c);
if (Cursor == LastChar)
return(CC_ERROR);
/* else */
Cursor = c_next_word(Cursor, LastChar, Argument);
if (Cursor < LastChar)
Cursor++;
if (VImode)
if (ActionFlag & TCSHOP_DELETE) {
c_delfini();
return(CC_REFRESH);
}
RefCursor();
return(CC_NORM);
}
/*ARGSUSED*/
static CCRETVAL
v_repeat_srch(int c)
{
CCRETVAL rv = CC_ERROR;
#ifdef SDEBUG
xprintf("dir %d patlen %d patbuf %S\n",
c, (int)patbuf.len, patbuf.s);
#endif
LastCmd = (KEYCMD) c; /* Hack to stop c_hsetpat */
LastChar = InputBuf;
switch (c) {
case F_DOWN_SEARCH_HIST:
rv = e_down_search_hist(0);
break;
case F_UP_SEARCH_HIST:
rv = e_up_search_hist(0);
break;
default:
break;
}
return rv;
}
static CCRETVAL
v_csearch_back(Char ch, int count, int tflag)
{
Char *cp;
cp = Cursor;
while (count--) {
if (*cp == ch)
cp--;
while (cp > InputBuf && *cp != ch)
cp--;
}
if (cp < InputBuf || (cp == InputBuf && *cp != ch))
return(CC_ERROR);
if (*cp == ch && tflag)
cp++;
Cursor = cp;
if (ActionFlag & TCSHOP_DELETE) {
Cursor++;
c_delfini();
return(CC_REFRESH);
}
RefCursor();
return(CC_NORM);
}
static CCRETVAL
v_csearch_fwd(Char ch, int count, int tflag)
{
Char *cp;
cp = Cursor;
while (count--) {
if(*cp == ch)
cp++;
while (cp < LastChar && *cp != ch)
cp++;
}
if (cp >= LastChar)
return(CC_ERROR);
if (*cp == ch && tflag)
cp--;
Cursor = cp;
if (ActionFlag & TCSHOP_DELETE) {
Cursor++;
c_delfini();
return(CC_REFRESH);
}
RefCursor();
return(CC_NORM);
}
/*ARGSUSED*/
static CCRETVAL
v_action(int c)
{
Char *cp, *kp;
if (ActionFlag == TCSHOP_DELETE) {
ActionFlag = TCSHOP_NOP;
ActionPos = 0;
UndoSize = 0;
kp = UndoBuf;
for (cp = InputBuf; cp < LastChar; cp++) {
*kp++ = *cp;
UndoSize++;
}
UndoAction = TCSHOP_INSERT;
UndoPtr = InputBuf;
LastChar = InputBuf;
Cursor = InputBuf;
if (c & TCSHOP_INSERT)
c_alternativ_key_map(0);
return(CC_REFRESH);
}
#ifdef notdef
else if (ActionFlag == TCSHOP_NOP) {
#endif
ActionPos = Cursor;
ActionFlag = c;
return(CC_ARGHACK); /* Do NOT clear out argument */
#ifdef notdef
}
else {
ActionFlag = 0;
ActionPos = 0;
return(CC_ERROR);
}
#endif
}
#ifdef COMMENT
/* by: Brian Allison <uiucdcs!convex!allison@RUTGERS.EDU> */
static void
c_get_word(Char **begin, Char **end)
{
Char *cp;
cp = &Cursor[0];
while (Argument--) {
while ((cp <= LastChar) && (isword(*cp)))
cp++;
*end = --cp;
while ((cp >= InputBuf) && (isword(*cp)))
cp--;
*begin = ++cp;
}
}
#endif /* COMMENT */
/*ARGSUSED*/
CCRETVAL
e_uppercase(Char c)
{
Char *cp, *end;
USE(c);
end = c_next_word(Cursor, LastChar, Argument);
for (cp = Cursor; cp < end; cp++) /* PWP: was cp=begin */
if (Islower(*cp))
*cp = Toupper(*cp);
Cursor = end;
if (Cursor > LastChar)
Cursor = LastChar;
return(CC_REFRESH);
}
/*ARGSUSED*/
CCRETVAL
e_capitolcase(Char c)
{
Char *cp, *end;
USE(c);
end = c_next_word(Cursor, LastChar, Argument);
cp = Cursor;
for (; cp < end; cp++) {
if (Isalpha(*cp)) {
if (Islower(*cp))
*cp = Toupper(*cp);
cp++;
break;
}
}
for (; cp < end; cp++)
if (Isupper(*cp))
*cp = Tolower(*cp);
Cursor = end;
if (Cursor > LastChar)
Cursor = LastChar;
return(CC_REFRESH);
}
/*ARGSUSED*/
CCRETVAL
e_lowercase(Char c)
{
Char *cp, *end;
USE(c);
end = c_next_word(Cursor, LastChar, Argument);
for (cp = Cursor; cp < end; cp++)
if (Isupper(*cp))
*cp = Tolower(*cp);
Cursor = end;
if (Cursor > LastChar)
Cursor = LastChar;
return(CC_REFRESH);
}
/*ARGSUSED*/
CCRETVAL
e_set_mark(Char c)
{
USE(c);
if (adrof(STRhighlight) && MarkIsSet && Mark != Cursor) {
ClearLines();
ClearDisp();
Refresh();
}
Mark = Cursor;
MarkIsSet = 1;
return(CC_NORM);
}
/*ARGSUSED*/
CCRETVAL
e_exchange_mark(Char c)
{
Char *cp;
USE(c);
cp = Cursor;
Cursor = Mark;
Mark = cp;
RefCursor();
return(CC_NORM);
}
/*ARGSUSED*/
CCRETVAL
e_argfour(Char c)
{ /* multiply current argument by 4 */
USE(c);
if (Argument > 1000000)
return CC_ERROR;
DoingArg = 1;
Argument *= 4;
return(CC_ARGHACK);
}
static void
quote_mode_cleanup(void *unused)
{
USE(unused);
QuoteModeOff();
}
/*ARGSUSED*/
CCRETVAL
e_quote(Char c)
{
Char ch;
int num;
USE(c);
QuoteModeOn();
cleanup_push(&c, quote_mode_cleanup); /* Using &c just as a mark */
num = GetNextChar(&ch);
cleanup_until(&c);
if (num == 1)
return e_insert(ch);
else
return e_send_eof(0);
}
/*ARGSUSED*/
CCRETVAL
e_metanext(Char c)
{
USE(c);
MetaNext = 1;
return(CC_ARGHACK); /* preserve argument */
}
#ifdef notdef
/*ARGSUSED*/
CCRETVAL
e_extendnext(Char c)
{
CurrentKeyMap = CcAltMap;
return(CC_ARGHACK); /* preserve argument */
}
#endif
/*ARGSUSED*/
CCRETVAL
v_insbeg(Char c)
{ /* move to beginning of line and start vi
* insert mode */
USE(c);
Cursor = InputBuf;
InsertPos = Cursor;
UndoPtr = Cursor;
UndoAction = TCSHOP_DELETE;
RefCursor(); /* move the cursor */
c_alternativ_key_map(0);
return(CC_NORM);
}
/*ARGSUSED*/
CCRETVAL
v_replone(Char c)
{ /* vi mode overwrite one character */
USE(c);
c_alternativ_key_map(0);
inputmode = MODE_REPLACE_1;
UndoAction = TCSHOP_CHANGE; /* Set Up for VI undo command */
UndoPtr = Cursor;
UndoSize = 0;
return(CC_NORM);
}
/*ARGSUSED*/
CCRETVAL
v_replmode(Char c)
{ /* vi mode start overwriting */
USE(c);
c_alternativ_key_map(0);
inputmode = MODE_REPLACE;
UndoAction = TCSHOP_CHANGE; /* Set Up for VI undo command */
UndoPtr = Cursor;
UndoSize = 0;
return(CC_NORM);
}
/*ARGSUSED*/
CCRETVAL
v_substchar(Char c)
{ /* vi mode substitute for one char */
USE(c);
c_delafter(Argument);
c_alternativ_key_map(0);
return(CC_REFRESH);
}
/*ARGSUSED*/
CCRETVAL
v_substline(Char c)
{ /* vi mode replace whole line */
USE(c);
(void) e_killall(0);
c_alternativ_key_map(0);
return(CC_REFRESH);
}
/*ARGSUSED*/
CCRETVAL
v_chgtoend(Char c)
{ /* vi mode change to end of line */
USE(c);
(void) e_killend(0);
c_alternativ_key_map(0);
return(CC_REFRESH);
}
/*ARGSUSED*/
CCRETVAL
v_insert(Char c)
{ /* vi mode start inserting */
USE(c);
c_alternativ_key_map(0);
InsertPos = Cursor;
UndoPtr = Cursor;
UndoAction = TCSHOP_DELETE;
return(CC_NORM);
}
/*ARGSUSED*/
CCRETVAL
v_add(Char c)
{ /* vi mode start adding */
USE(c);
c_alternativ_key_map(0);
if (Cursor < LastChar)
{
Cursor++;
if (Cursor > LastChar)
Cursor = LastChar;
RefCursor();
}
InsertPos = Cursor;
UndoPtr = Cursor;
UndoAction = TCSHOP_DELETE;
return(CC_NORM);
}
/*ARGSUSED*/
CCRETVAL
v_addend(Char c)
{ /* vi mode to add at end of line */
USE(c);
c_alternativ_key_map(0);
Cursor = LastChar;
InsertPos = LastChar; /* Mark where insertion begins */
UndoPtr = LastChar;
UndoAction = TCSHOP_DELETE;
RefCursor();
return(CC_NORM);
}
/*ARGSUSED*/
CCRETVAL
v_change_case(Char cc)
{
Char c;
USE(cc);
if (Cursor < LastChar) {
#ifndef WINNT_NATIVE
c = *Cursor;
#else
c = CHAR & *Cursor;
#endif /* WINNT_NATIVE */
if (Isupper(c))
*Cursor++ = Tolower(c);
else if (Islower(c))
*Cursor++ = Toupper(c);
else
Cursor++;
RefPlusOne(1); /* fast refresh for one char */
return(CC_NORM);
}
return(CC_ERROR);
}
/*ARGSUSED*/
CCRETVAL
e_expand(Char c)
{
Char *p;
USE(c);
for (p = InputBuf; Isspace(*p); p++)
continue;
if (p == LastChar)
return(CC_ERROR);
justpr++;
Expand++;
return(e_newline(0));
}
/*ARGSUSED*/
CCRETVAL
e_startover(Char c)
{ /* erase all of current line, start again */
USE(c);
ResetInLine(0); /* reset the input pointers */
return(CC_REFRESH);
}
/*ARGSUSED*/
CCRETVAL
e_redisp(Char c)
{
USE(c);
ClearLines();
ClearDisp();
return(CC_REFRESH);
}
/*ARGSUSED*/
CCRETVAL
e_cleardisp(Char c)
{
USE(c);
ClearScreen(); /* clear the whole real screen */
ClearDisp(); /* reset everything */
return(CC_REFRESH);
}
/*ARGSUSED*/
CCRETVAL
e_tty_int(Char c)
{
USE(c);
#if defined(_MINIX) || defined(WINNT_NATIVE)
/* SAK PATCH: erase all of current line, start again */
ResetInLine(0); /* reset the input pointers */
xputchar('\n');
ClearDisp();
return (CC_REFRESH);
#else /* !_MINIX && !WINNT_NATIVE */
/* do no editing */
return (CC_NORM);
#endif /* _MINIX || WINNT_NATIVE */
}
/*
* From: ghazi@cesl.rutgers.edu (Kaveh R. Ghazi)
* Function to send a character back to the input stream in cooked
* mode. Only works if we have TIOCSTI
*/
/*ARGSUSED*/
CCRETVAL
e_stuff_char(Char c)
{
#ifdef TIOCSTI
int was_raw = Tty_raw_mode;
char buf[MB_LEN_MAX];
size_t i, len;
if (was_raw)
(void) Cookedmode();
(void) xwrite(SHIN, "\n", 1);
len = one_wctomb(buf, c & CHAR);
for (i = 0; i < len; i++)
(void) ioctl(SHIN, TIOCSTI, (ioctl_t) &buf[i]);
if (was_raw)
(void) Rawmode();
return(e_redisp(c));
#else /* !TIOCSTI */
return(CC_ERROR);
#endif /* !TIOCSTI */
}
/*ARGSUSED*/
CCRETVAL
e_insovr(Char c)
{
USE(c);
inputmode = (inputmode == MODE_INSERT ? MODE_REPLACE : MODE_INSERT);
return(CC_NORM);
}
/*ARGSUSED*/
CCRETVAL
e_tty_dsusp(Char c)
{
USE(c);
/* do no editing */
return(CC_NORM);
}
/*ARGSUSED*/
CCRETVAL
e_tty_flusho(Char c)
{
USE(c);
/* do no editing */
return(CC_NORM);
}
/*ARGSUSED*/
CCRETVAL
e_tty_quit(Char c)
{
USE(c);
/* do no editing */
return(CC_NORM);
}
/*ARGSUSED*/
CCRETVAL
e_tty_tsusp(Char c)
{
USE(c);
/* do no editing */
return(CC_NORM);
}
/*ARGSUSED*/
CCRETVAL
e_tty_stopo(Char c)
{
USE(c);
/* do no editing */
return(CC_NORM);
}
/* returns the number of (attempted) expansions */
int
ExpandHistory(void)
{
*LastChar = '\0'; /* just in case */
return c_substitute();
}
/*ARGSUSED*/
CCRETVAL
e_expand_history(Char c)
{
USE(c);
(void)ExpandHistory();
return(CC_NORM);
}
/*ARGSUSED*/
CCRETVAL
e_magic_space(Char c)
{
USE(c);
*LastChar = '\0'; /* just in case */
(void)c_substitute();
return(e_insert(' '));
}
/*ARGSUSED*/
CCRETVAL
e_inc_fwd(Char c)
{
CCRETVAL ret;
USE(c);
patbuf.len = 0;
MarkIsSet = 0;
ret = e_inc_search(F_DOWN_SEARCH_HIST);
if (adrof(STRhighlight) && IncMatchLen) {
IncMatchLen = 0;
ClearLines();
ClearDisp();
Refresh();
}
IncMatchLen = 0;
return ret;
}
/*ARGSUSED*/
CCRETVAL
e_inc_back(Char c)
{
CCRETVAL ret;
USE(c);
patbuf.len = 0;
MarkIsSet = 0;
ret = e_inc_search(F_UP_SEARCH_HIST);
if (adrof(STRhighlight) && IncMatchLen) {
IncMatchLen = 0;
ClearLines();
ClearDisp();
Refresh();
}
IncMatchLen = 0;
return ret;
}
/*ARGSUSED*/
CCRETVAL
e_copyprev(Char c)
{
Char *cp, *oldc, *dp;
USE(c);
if (Cursor == InputBuf)
return(CC_ERROR);
/* else */
oldc = Cursor;
/* does a bounds check */
cp = c_prev_word(Cursor, InputBuf, Argument);
c_insert((int)(oldc - cp));
for (dp = oldc; cp < oldc && dp < LastChar; cp++)
*dp++ = *cp;
Cursor = dp; /* put cursor at end */
return(CC_REFRESH);
}
/*ARGSUSED*/
CCRETVAL
e_tty_starto(Char c)
{
USE(c);
/* do no editing */
return(CC_NORM);
}
/*ARGSUSED*/
CCRETVAL
e_load_average(Char c)
{
USE(c);
PastBottom();
#ifdef TIOCSTAT
/*
* Here we pass &c to the ioctl because some os's (NetBSD) expect it
* there even if they don't use it. (lukem@netbsd.org)
*/
if (ioctl(SHIN, TIOCSTAT, (ioctl_t) &c) < 0)
#endif
xprintf("%s", CGETS(5, 1, "Load average unavailable\n"));
return(CC_REFRESH);
}
/*ARGSUSED*/
CCRETVAL
v_chgmeta(Char c)
{
USE(c);
/*
* Delete with insert == change: first we delete and then we leave in
* insert mode.
*/
return(v_action(TCSHOP_DELETE|TCSHOP_INSERT));
}
/*ARGSUSED*/
CCRETVAL
v_delmeta(Char c)
{
USE(c);
return(v_action(TCSHOP_DELETE));
}
/*ARGSUSED*/
CCRETVAL
v_endword(Char c)
{
USE(c);
if (Cursor == LastChar)
return(CC_ERROR);
/* else */
Cursor = c_endword(Cursor, LastChar, Argument, STRshwspace);
if (ActionFlag & TCSHOP_DELETE)
{
Cursor++;
c_delfini();
return(CC_REFRESH);
}
RefCursor();
return(CC_NORM);
}
/*ARGSUSED*/
CCRETVAL
v_eword(Char c)
{
USE(c);
if (Cursor == LastChar)
return(CC_ERROR);
/* else */
Cursor = c_eword(Cursor, LastChar, Argument);
if (ActionFlag & TCSHOP_DELETE) {
Cursor++;
c_delfini();
return(CC_REFRESH);
}
RefCursor();
return(CC_NORM);
}
/*ARGSUSED*/
CCRETVAL
v_char_fwd(Char c)
{
Char ch;
USE(c);
if (GetNextChar(&ch) != 1)
return e_send_eof(0);
srch_dir = CHAR_FWD;
srch_char = ch;
return v_csearch_fwd(ch, Argument, 0);
}
/*ARGSUSED*/
CCRETVAL
v_char_back(Char c)
{
Char ch;
USE(c);
if (GetNextChar(&ch) != 1)
return e_send_eof(0);
srch_dir = CHAR_BACK;
srch_char = ch;
return v_csearch_back(ch, Argument, 0);
}
/*ARGSUSED*/
CCRETVAL
v_charto_fwd(Char c)
{
Char ch;
USE(c);
if (GetNextChar(&ch) != 1)
return e_send_eof(0);
return v_csearch_fwd(ch, Argument, 1);
}
/*ARGSUSED*/
CCRETVAL
v_charto_back(Char c)
{
Char ch;
USE(c);
if (GetNextChar(&ch) != 1)
return e_send_eof(0);
return v_csearch_back(ch, Argument, 1);
}
/*ARGSUSED*/
CCRETVAL
v_rchar_fwd(Char c)
{
USE(c);
if (srch_char == 0)
return CC_ERROR;
return srch_dir == CHAR_FWD ? v_csearch_fwd(srch_char, Argument, 0) :
v_csearch_back(srch_char, Argument, 0);
}
/*ARGSUSED*/
CCRETVAL
v_rchar_back(Char c)
{
USE(c);
if (srch_char == 0)
return CC_ERROR;
return srch_dir == CHAR_BACK ? v_csearch_fwd(srch_char, Argument, 0) :
v_csearch_back(srch_char, Argument, 0);
}
/*ARGSUSED*/
CCRETVAL
v_undo(Char c)
{
int loop;
Char *kp, *cp;
Char temp;
int size;
USE(c);
switch (UndoAction) {
case TCSHOP_DELETE|TCSHOP_INSERT:
case TCSHOP_DELETE:
if (UndoSize == 0) return(CC_NORM);
cp = UndoPtr;
kp = UndoBuf;
for (loop=0; loop < UndoSize; loop++) /* copy the chars */
*kp++ = *cp++; /* into UndoBuf */
for (cp = UndoPtr; cp <= LastChar; cp++)
*cp = cp[UndoSize];
LastChar -= UndoSize;
Cursor = UndoPtr;
UndoAction = TCSHOP_INSERT;
break;
case TCSHOP_INSERT:
if (UndoSize == 0) return(CC_NORM);
cp = UndoPtr;
Cursor = UndoPtr;
kp = UndoBuf;
c_insert(UndoSize); /* open the space, */
for (loop = 0; loop < UndoSize; loop++) /* copy the chars */
*cp++ = *kp++;
UndoAction = TCSHOP_DELETE;
break;
case TCSHOP_CHANGE:
if (UndoSize == 0) return(CC_NORM);
cp = UndoPtr;
Cursor = UndoPtr;
kp = UndoBuf;
size = (int)(Cursor-LastChar); /* NOT NSL independant */
if (size < UndoSize)
size = UndoSize;
for(loop = 0; loop < size; loop++) {
temp = *kp;
*kp++ = *cp;
*cp++ = temp;
}
break;
default:
return(CC_ERROR);
}
return(CC_REFRESH);
}
/*ARGSUSED*/
CCRETVAL
v_ush_meta(Char c)
{
USE(c);
return v_search(F_UP_SEARCH_HIST);
}
/*ARGSUSED*/
CCRETVAL
v_dsh_meta(Char c)
{
USE(c);
return v_search(F_DOWN_SEARCH_HIST);
}
/*ARGSUSED*/
CCRETVAL
v_rsrch_fwd(Char c)
{
USE(c);
if (patbuf.len == 0) return(CC_ERROR);
return(v_repeat_srch(searchdir));
}
/*ARGSUSED*/
CCRETVAL
v_rsrch_back(Char c)
{
USE(c);
if (patbuf.len == 0) return(CC_ERROR);
return(v_repeat_srch(searchdir == F_UP_SEARCH_HIST ?
F_DOWN_SEARCH_HIST : F_UP_SEARCH_HIST));
}
#ifndef WINNT_NATIVE
/* Since ed.defns.h is generated from ed.defns.c, these empty
functions will keep the F_NUM_FNS consistent
*/
CCRETVAL
e_copy_to_clipboard(Char c)
{
USE(c);
return CC_ERROR;
}
CCRETVAL
e_paste_from_clipboard(Char c)
{
USE(c);
return (CC_ERROR);
}
CCRETVAL
e_dosify_next(Char c)
{
USE(c);
return (CC_ERROR);
}
CCRETVAL
e_dosify_prev(Char c)
{
USE(c);
return (CC_ERROR);
}
CCRETVAL
e_page_up(Char c)
{
USE(c);
return (CC_ERROR);
}
CCRETVAL
e_page_down(Char c)
{
USE(c);
return (CC_ERROR);
}
#endif /* !WINNT_NATIVE */
#ifdef notdef
void
MoveCursor(int n) /* move cursor + right - left char */
{
Cursor = Cursor + n;
if (Cursor < InputBuf)
Cursor = InputBuf;
if (Cursor > LastChar)
Cursor = LastChar;
return;
}
Char *
GetCursor(void)
{
return(Cursor);
}
int
PutCursor(Char *p)
{
if (p < InputBuf || p > LastChar)
return 1; /* Error */
Cursor = p;
return 0;
}
#endif
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