647 lines
16 KiB
C
647 lines
16 KiB
C
/* $Header: /src/pub/tcsh/tc.prompt.c,v 3.47 2002/07/25 17:14:59 christos Exp $ */
|
|
/*
|
|
* tc.prompt.c: Prompt printing stuff
|
|
*/
|
|
/*-
|
|
* 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.
|
|
*/
|
|
#include "sh.h"
|
|
|
|
RCSID("$Id: tc.prompt.c,v 3.47 2002/07/25 17:14:59 christos Exp $")
|
|
|
|
#include "ed.h"
|
|
#include "tw.h"
|
|
|
|
/*
|
|
* kfk 21oct1983 -- add @ (time) and / ($cwd) in prompt.
|
|
* PWP 4/27/87 -- rearange for tcsh.
|
|
* mrdch@com.tau.edu.il 6/26/89 - added ~, T and .# - rearanged to switch()
|
|
* instead of if/elseif
|
|
* Luke Mewburn, <lukem@cs.rmit.edu.au>
|
|
* 6-Sep-91 changed date format
|
|
* 16-Feb-94 rewrote directory prompt code, added $ellipsis
|
|
* 29-Dec-96 added rprompt support
|
|
*/
|
|
|
|
static char *month_list[12];
|
|
static char *day_list[7];
|
|
|
|
void
|
|
dateinit()
|
|
{
|
|
#ifdef notyet
|
|
int i;
|
|
|
|
setlocale(LC_TIME, "");
|
|
|
|
for (i = 0; i < 12; i++)
|
|
xfree((ptr_t) month_list[i]);
|
|
month_list[0] = strsave(_time_info->abbrev_month[0]);
|
|
month_list[1] = strsave(_time_info->abbrev_month[1]);
|
|
month_list[2] = strsave(_time_info->abbrev_month[2]);
|
|
month_list[3] = strsave(_time_info->abbrev_month[3]);
|
|
month_list[4] = strsave(_time_info->abbrev_month[4]);
|
|
month_list[5] = strsave(_time_info->abbrev_month[5]);
|
|
month_list[6] = strsave(_time_info->abbrev_month[6]);
|
|
month_list[7] = strsave(_time_info->abbrev_month[7]);
|
|
month_list[8] = strsave(_time_info->abbrev_month[8]);
|
|
month_list[9] = strsave(_time_info->abbrev_month[9]);
|
|
month_list[10] = strsave(_time_info->abbrev_month[10]);
|
|
month_list[11] = strsave(_time_info->abbrev_month[11]);
|
|
|
|
for (i = 0; i < 7; i++)
|
|
xfree((ptr_t) day_list[i]);
|
|
day_list[0] = strsave(_time_info->abbrev_wkday[0]);
|
|
day_list[1] = strsave(_time_info->abbrev_wkday[1]);
|
|
day_list[2] = strsave(_time_info->abbrev_wkday[2]);
|
|
day_list[3] = strsave(_time_info->abbrev_wkday[3]);
|
|
day_list[4] = strsave(_time_info->abbrev_wkday[4]);
|
|
day_list[5] = strsave(_time_info->abbrev_wkday[5]);
|
|
day_list[6] = strsave(_time_info->abbrev_wkday[6]);
|
|
#else
|
|
month_list[0] = "Jan";
|
|
month_list[1] = "Feb";
|
|
month_list[2] = "Mar";
|
|
month_list[3] = "Apr";
|
|
month_list[4] = "May";
|
|
month_list[5] = "Jun";
|
|
month_list[6] = "Jul";
|
|
month_list[7] = "Aug";
|
|
month_list[8] = "Sep";
|
|
month_list[9] = "Oct";
|
|
month_list[10] = "Nov";
|
|
month_list[11] = "Dec";
|
|
|
|
day_list[0] = "Sun";
|
|
day_list[1] = "Mon";
|
|
day_list[2] = "Tue";
|
|
day_list[3] = "Wed";
|
|
day_list[4] = "Thu";
|
|
day_list[5] = "Fri";
|
|
day_list[6] = "Sat";
|
|
#endif
|
|
}
|
|
|
|
void
|
|
printprompt(promptno, str)
|
|
int promptno;
|
|
char *str;
|
|
{
|
|
static Char *ocp = NULL;
|
|
static char *ostr = NULL;
|
|
time_t lclock = time(NULL);
|
|
Char *cp;
|
|
|
|
switch (promptno) {
|
|
default:
|
|
case 0:
|
|
cp = varval(STRprompt);
|
|
break;
|
|
case 1:
|
|
cp = varval(STRprompt2);
|
|
break;
|
|
case 2:
|
|
cp = varval(STRprompt3);
|
|
break;
|
|
case 3:
|
|
if (ocp != NULL) {
|
|
cp = ocp;
|
|
str = ostr;
|
|
}
|
|
else
|
|
cp = varval(STRprompt);
|
|
break;
|
|
}
|
|
|
|
if (promptno < 2) {
|
|
ocp = cp;
|
|
ostr = str;
|
|
}
|
|
|
|
PromptBuf[0] = '\0';
|
|
tprintf(FMT_PROMPT, PromptBuf, cp, 2 * INBUFSIZE - 2, str, lclock, NULL);
|
|
|
|
if (!editing) {
|
|
for (cp = PromptBuf; *cp ; )
|
|
(void) putraw(*cp++);
|
|
SetAttributes(0);
|
|
flush();
|
|
}
|
|
|
|
RPromptBuf[0] = '\0';
|
|
if (promptno == 0) { /* determine rprompt if using main prompt */
|
|
cp = varval(STRrprompt);
|
|
tprintf(FMT_PROMPT, RPromptBuf, cp, INBUFSIZE - 2, NULL, lclock, NULL);
|
|
|
|
/* if not editing, put rprompt after prompt */
|
|
if (!editing && RPromptBuf[0] != '\0') {
|
|
for (cp = RPromptBuf; *cp ; )
|
|
(void) putraw(*cp++);
|
|
SetAttributes(0);
|
|
putraw(' ');
|
|
flush();
|
|
}
|
|
}
|
|
}
|
|
|
|
void
|
|
tprintf(what, buf, fmt, siz, str, tim, info)
|
|
int what;
|
|
Char *buf;
|
|
const Char *fmt;
|
|
size_t siz;
|
|
char *str;
|
|
time_t tim;
|
|
ptr_t info;
|
|
{
|
|
Char *z, *q;
|
|
Char attributes = 0;
|
|
static int print_prompt_did_ding = 0;
|
|
Char buff[BUFSIZE];
|
|
/* Need to be unsigned to avoid sign extension */
|
|
const unsigned char *cz;
|
|
unsigned char cbuff[BUFSIZE];
|
|
|
|
Char *p = buf;
|
|
Char *ep = &p[siz];
|
|
const Char *cp = fmt;
|
|
Char Scp;
|
|
struct tm *t = localtime(&tim);
|
|
|
|
/* prompt stuff */
|
|
static Char *olddir = NULL, *olduser = NULL;
|
|
extern int tlength; /* cache cleared */
|
|
int updirs;
|
|
size_t pdirs, sz;
|
|
|
|
for (; *cp; cp++) {
|
|
if (p >= ep)
|
|
break;
|
|
#ifdef DSPMBYTE
|
|
if (Ismbyte1(*cp) && ! (cp[1] == '\0'))
|
|
{
|
|
*p++ = attributes | *cp++; /* normal character */
|
|
*p++ = attributes | *cp; /* normal character */
|
|
}
|
|
else
|
|
#endif /* DSPMBYTE */
|
|
if ((*cp == '%') && ! (cp[1] == '\0')) {
|
|
cp++;
|
|
switch (*cp) {
|
|
case 'R':
|
|
if (what == FMT_HISTORY)
|
|
fmthist('R', info, (char *) (cz = cbuff), sizeof(cbuff));
|
|
else
|
|
cz = (unsigned char *) str;
|
|
if (cz != NULL)
|
|
for (; *cz; *p++ = attributes | *cz++)
|
|
if (p >= ep) break;
|
|
break;
|
|
case '#':
|
|
*p++ = attributes | ((uid == 0) ? PRCHROOT : PRCH);
|
|
break;
|
|
case '!':
|
|
case 'h':
|
|
switch (what) {
|
|
case FMT_HISTORY:
|
|
fmthist('h', info, (char *) cbuff, sizeof(cbuff));
|
|
break;
|
|
case FMT_SCHED:
|
|
(void) xsnprintf((char *) cbuff, sizeof(cbuff), "%d",
|
|
*(int *)info);
|
|
break;
|
|
default:
|
|
(void) xsnprintf((char *) cbuff, sizeof(cbuff), "%d",
|
|
eventno + 1);
|
|
break;
|
|
}
|
|
for (cz = cbuff; *cz; *p++ = attributes | *cz++)
|
|
if (p >= ep) break;
|
|
break;
|
|
case 'T': /* 24 hour format */
|
|
case '@':
|
|
case 't': /* 12 hour am/pm format */
|
|
case 'p': /* With seconds */
|
|
case 'P':
|
|
{
|
|
char ampm = 'a';
|
|
int hr = t->tm_hour;
|
|
|
|
if (p >= ep - 10) break;
|
|
|
|
/* addition by Hans J. Albertsson */
|
|
/* and another adapted from Justin Bur */
|
|
if (adrof(STRampm) || (*cp != 'T' && *cp != 'P')) {
|
|
if (hr >= 12) {
|
|
if (hr > 12)
|
|
hr -= 12;
|
|
ampm = 'p';
|
|
}
|
|
else if (hr == 0)
|
|
hr = 12;
|
|
} /* else do a 24 hour clock */
|
|
|
|
/* "DING!" stuff by Hans also */
|
|
if (t->tm_min || print_prompt_did_ding ||
|
|
what != FMT_PROMPT || adrof(STRnoding)) {
|
|
if (t->tm_min)
|
|
print_prompt_did_ding = 0;
|
|
p = Itoa(hr, p, 0, attributes);
|
|
*p++ = attributes | ':';
|
|
p = Itoa(t->tm_min, p, 2, attributes);
|
|
if (*cp == 'p' || *cp == 'P') {
|
|
*p++ = attributes | ':';
|
|
p = Itoa(t->tm_sec, p, 2, attributes);
|
|
}
|
|
if (adrof(STRampm) || (*cp != 'T' && *cp != 'P')) {
|
|
*p++ = attributes | ampm;
|
|
*p++ = attributes | 'm';
|
|
}
|
|
}
|
|
else { /* we need to ding */
|
|
int i = 0;
|
|
|
|
(void) Strcpy(buff, STRDING);
|
|
while (buff[i]) {
|
|
*p++ = attributes | buff[i++];
|
|
}
|
|
print_prompt_did_ding = 1;
|
|
}
|
|
}
|
|
break;
|
|
|
|
case 'M':
|
|
#ifndef HAVENOUTMP
|
|
if (what == FMT_WHO)
|
|
cz = (unsigned char *) who_info(info, 'M',
|
|
(char *) cbuff, sizeof(cbuff));
|
|
else
|
|
#endif /* HAVENOUTMP */
|
|
cz = (unsigned char *) getenv("HOST");
|
|
/*
|
|
* Bug pointed out by Laurent Dami <dami@cui.unige.ch>: don't
|
|
* derefrence that NULL (if HOST is not set)...
|
|
*/
|
|
if (cz != NULL)
|
|
for (; *cz ; *p++ = attributes | *cz++)
|
|
if (p >= ep) break;
|
|
break;
|
|
|
|
case 'm':
|
|
#ifndef HAVENOUTMP
|
|
if (what == FMT_WHO)
|
|
cz = (unsigned char *) who_info(info, 'm', (char *) cbuff,
|
|
sizeof(cbuff));
|
|
else
|
|
#endif /* HAVENOUTMP */
|
|
cz = (unsigned char *) getenv("HOST");
|
|
|
|
if (cz != NULL)
|
|
for ( ; *cz && (what == FMT_WHO || *cz != '.')
|
|
; *p++ = attributes | *cz++ )
|
|
if (p >= ep) break;
|
|
break;
|
|
|
|
/* lukem: new directory prompt code */
|
|
case '~':
|
|
case '/':
|
|
case '.':
|
|
case 'c':
|
|
case 'C':
|
|
Scp = *cp;
|
|
if (Scp == 'c') /* store format type (c == .) */
|
|
Scp = '.';
|
|
if ((z = varval(STRcwd)) == STRNULL)
|
|
break; /* no cwd, so don't do anything */
|
|
|
|
/* show ~ whenever possible - a la dirs */
|
|
if (Scp == '~' || Scp == '.' ) {
|
|
if (tlength == 0 || olddir != z) {
|
|
olddir = z; /* have we changed dir? */
|
|
olduser = getusername(&olddir);
|
|
}
|
|
if (olduser)
|
|
z = olddir;
|
|
}
|
|
updirs = pdirs = 0;
|
|
|
|
/* option to determine fixed # of dirs from path */
|
|
if (Scp == '.' || Scp == 'C') {
|
|
int skip;
|
|
#ifdef WINNT_NATIVE
|
|
if (z[1] == ':') {
|
|
*p++ = attributes | *z++;
|
|
*p++ = attributes | *z++;
|
|
}
|
|
if (*z == '/' && z[1] == '/') {
|
|
*p++ = attributes | *z++;
|
|
*p++ = attributes | *z++;
|
|
do {
|
|
*p++ = attributes | *z++;
|
|
}while(*z != '/');
|
|
}
|
|
#endif /* WINNT_NATIVE */
|
|
q = z;
|
|
while (*z) /* calc # of /'s */
|
|
if (*z++ == '/')
|
|
updirs++;
|
|
if ((Scp == 'C' && *q != '/'))
|
|
updirs++;
|
|
|
|
if (cp[1] == '0') { /* print <x> or ... */
|
|
pdirs = 1;
|
|
cp++;
|
|
}
|
|
if (cp[1] >= '1' && cp[1] <= '9') { /* calc # to skip */
|
|
skip = cp[1] - '0';
|
|
cp++;
|
|
}
|
|
else
|
|
skip = 1;
|
|
|
|
updirs -= skip;
|
|
while (skip-- > 0) {
|
|
while ((z > q) && (*z != '/'))
|
|
z--; /* back up */
|
|
if (skip && z > q)
|
|
z--;
|
|
}
|
|
if (*z == '/' && z != q)
|
|
z++;
|
|
} /* . || C */
|
|
|
|
/* print ~[user] */
|
|
if ((olduser) && ((Scp == '~') ||
|
|
(Scp == '.' && (pdirs || (!pdirs && updirs <= 0))) )) {
|
|
*p++ = attributes | '~';
|
|
if (p >= ep) break;
|
|
for (q = olduser; *q; *p++ = attributes | *q++)
|
|
if (p >= ep) break;
|
|
}
|
|
|
|
/* RWM - tell you how many dirs we've ignored */
|
|
/* and add '/' at front of this */
|
|
if (updirs > 0 && pdirs) {
|
|
if (p >= ep - 5) break;
|
|
if (adrof(STRellipsis)) {
|
|
*p++ = attributes | '.';
|
|
*p++ = attributes | '.';
|
|
*p++ = attributes | '.';
|
|
} else {
|
|
*p++ = attributes | '/';
|
|
*p++ = attributes | '<';
|
|
if (updirs > 9) {
|
|
*p++ = attributes | '9';
|
|
*p++ = attributes | '+';
|
|
} else
|
|
*p++ = attributes | ('0' + updirs);
|
|
*p++ = attributes | '>';
|
|
}
|
|
}
|
|
|
|
for (; *z ; *p++ = attributes | *z++)
|
|
if (p >= ep) break;
|
|
break;
|
|
/* lukem: end of new directory prompt code */
|
|
|
|
case 'n':
|
|
#ifndef HAVENOUTMP
|
|
if (what == FMT_WHO) {
|
|
cz = (unsigned char *) who_info(info, 'n',
|
|
(char *) cbuff, sizeof(cbuff));
|
|
for (; cz && *cz ; *p++ = attributes | *cz++)
|
|
if (p >= ep) break;
|
|
}
|
|
else
|
|
#endif /* HAVENOUTMP */
|
|
{
|
|
if ((z = varval(STRuser)) != STRNULL)
|
|
for (; *z; *p++ = attributes | *z++)
|
|
if (p >= ep) break;
|
|
}
|
|
break;
|
|
case 'l':
|
|
#ifndef HAVENOUTMP
|
|
if (what == FMT_WHO) {
|
|
cz = (unsigned char *) who_info(info, 'l',
|
|
(char *) cbuff, sizeof(cbuff));
|
|
for (; cz && *cz ; *p++ = attributes | *cz++)
|
|
if (p >= ep) break;
|
|
}
|
|
else
|
|
#endif /* HAVENOUTMP */
|
|
{
|
|
if ((z = varval(STRtty)) != STRNULL)
|
|
for (; *z; *p++ = attributes | *z++)
|
|
if (p >= ep) break;
|
|
}
|
|
break;
|
|
case 'd':
|
|
for (cz = (unsigned char *) day_list[t->tm_wday]; *cz;
|
|
*p++ = attributes | *cz++)
|
|
if (p >= ep) break;
|
|
break;
|
|
case 'D':
|
|
if (p >= ep - 3) break;
|
|
p = Itoa(t->tm_mday, p, 2, attributes);
|
|
break;
|
|
case 'w':
|
|
if (p >= ep - 5) break;
|
|
for (cz = (unsigned char *) month_list[t->tm_mon]; *cz;
|
|
*p++ = attributes | *cz++)
|
|
if (p >= ep) break;
|
|
break;
|
|
case 'W':
|
|
if (p >= ep - 3) break;
|
|
p = Itoa(t->tm_mon + 1, p, 2, attributes);
|
|
break;
|
|
case 'y':
|
|
if (p >= ep - 3) break;
|
|
p = Itoa(t->tm_year % 100, p, 2, attributes);
|
|
break;
|
|
case 'Y':
|
|
if (p >= ep - 5) break;
|
|
p = Itoa(t->tm_year + 1900, p, 4, attributes);
|
|
break;
|
|
case 'S': /* start standout */
|
|
attributes |= STANDOUT;
|
|
break;
|
|
case 'B': /* start bold */
|
|
attributes |= BOLD;
|
|
break;
|
|
case 'U': /* start underline */
|
|
attributes |= UNDER;
|
|
break;
|
|
case 's': /* end standout */
|
|
attributes &= ~STANDOUT;
|
|
break;
|
|
case 'b': /* end bold */
|
|
attributes &= ~BOLD;
|
|
break;
|
|
case 'u': /* end underline */
|
|
attributes &= ~UNDER;
|
|
break;
|
|
case 'L':
|
|
ClearToBottom();
|
|
break;
|
|
|
|
case 'j':
|
|
{
|
|
Char buf[128], *ebuf, *q;
|
|
int njobs = -1;
|
|
struct process *pp;
|
|
for (pp = proclist.p_next; pp; pp = pp->p_next)
|
|
njobs++;
|
|
/* make sure we have space */
|
|
ebuf = Itoa(njobs, buf, 1, attributes);
|
|
for (q = buf; q < ebuf; *p++ = *q++)
|
|
if (p >= ep) break;
|
|
break;
|
|
}
|
|
case '?':
|
|
if ((z = varval(STRstatus)) != STRNULL)
|
|
for (; *z; *p++ = attributes | *z++)
|
|
if (p >= ep) break;
|
|
break;
|
|
case '$':
|
|
sz = ep - p;
|
|
(void) expdollar(&p, &cp, &sz, attributes);
|
|
/* cp should point the last char of currnet % sequence */
|
|
cp--;
|
|
break;
|
|
case '%':
|
|
*p++ = attributes | '%';
|
|
break;
|
|
case '{': /* literal characters start */
|
|
#if LITERAL == 0
|
|
/*
|
|
* No literal capability, so skip all chars in the literal
|
|
* string
|
|
*/
|
|
while (*cp != '\0' && (*cp != '%' || cp[1] != '}'))
|
|
cp++;
|
|
#endif /* LITERAL == 0 */
|
|
attributes |= LITERAL;
|
|
break;
|
|
case '}': /* literal characters end */
|
|
attributes &= ~LITERAL;
|
|
break;
|
|
default:
|
|
#ifndef HAVENOUTMP
|
|
if (*cp == 'a' && what == FMT_WHO) {
|
|
cz = (unsigned char *) who_info(info, 'a', (char *) cbuff,
|
|
sizeof(cbuff));
|
|
for (; cz && *cz; *p++ = attributes | *cz++)
|
|
if (p >= ep) break;
|
|
}
|
|
else
|
|
#endif /* HAVENOUTMP */
|
|
{
|
|
if (p >= ep - 3) break;
|
|
*p++ = attributes | '%';
|
|
*p++ = attributes | *cp;
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
else if (*cp == '\\' || *cp == '^')
|
|
*p++ = attributes | parseescape(&cp);
|
|
else if (*cp == HIST) { /* EGS: handle '!'s in prompts */
|
|
if (what == FMT_HISTORY)
|
|
fmthist('h', info, (char *) cbuff, sizeof(cbuff));
|
|
else
|
|
(void) xsnprintf((char *) cbuff, sizeof(cbuff), "%d", eventno + 1);
|
|
for (cz = cbuff; *cz; *p++ = attributes | *cz++)
|
|
if (p >= ep) break;
|
|
}
|
|
else
|
|
*p++ = attributes | *cp; /* normal character */
|
|
}
|
|
*p = '\0';
|
|
}
|
|
|
|
Char *
|
|
expdollar(dstp, srcp, spp, attr)
|
|
Char **dstp;
|
|
const Char **srcp;
|
|
size_t *spp;
|
|
int attr;
|
|
{
|
|
struct varent *vp;
|
|
Char var[MAXVARLEN];
|
|
const Char *src = *srcp;
|
|
Char *val;
|
|
Char *dst = *dstp;
|
|
int i, curly = 0;
|
|
|
|
/* found a variable, expand it */
|
|
for (i = 0; i < MAXVARLEN; i++) {
|
|
var[i] = *++src & TRIM;
|
|
if (i == 0 && var[i] == '{') {
|
|
curly = 1;
|
|
var[i] = *++src & TRIM;
|
|
}
|
|
if (!alnum(var[i])) {
|
|
|
|
var[i] = '\0';
|
|
break;
|
|
}
|
|
}
|
|
if (curly && (*src & TRIM) == '}')
|
|
src++;
|
|
|
|
vp = adrof(var);
|
|
val = (!vp) ? tgetenv(var) : NULL;
|
|
if (vp && vp->vec) {
|
|
for (i = 0; vp->vec[i] != NULL; i++) {
|
|
for (val = vp->vec[i]; *spp > 0 && *val; (*spp)--)
|
|
*dst++ = *val++ | attr;
|
|
if (vp->vec[i+1] && *spp > 0) {
|
|
*dst++ = ' ' | attr;
|
|
(*spp)--;
|
|
}
|
|
}
|
|
}
|
|
else if (val) {
|
|
for (; *spp > 0 && *val; (*spp)--)
|
|
*dst++ = *val++ | attr;
|
|
}
|
|
else {
|
|
**dstp = '\0';
|
|
*srcp = src;
|
|
return NULL;
|
|
}
|
|
*dst = '\0';
|
|
|
|
val = *dstp;
|
|
*srcp = src;
|
|
*dstp = dst;
|
|
|
|
return val;
|
|
}
|