d1e4d7ce7d
Jobctl warning commented out. Largely untested. Change-Id: I4dffe23a2855a374628c820703b51591633aed64
441 lines
8.6 KiB
C
441 lines
8.6 KiB
C
/* $NetBSD: str.c,v 1.15 2013/07/16 17:47:43 christos Exp $ */
|
|
|
|
/*-
|
|
* Copyright (c) 1991, 1993
|
|
* 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 <sys/cdefs.h>
|
|
#ifndef lint
|
|
#if 0
|
|
static char sccsid[] = "@(#)str.c 8.1 (Berkeley) 5/31/93";
|
|
#else
|
|
__RCSID("$NetBSD: str.c,v 1.15 2013/07/16 17:47:43 christos Exp $");
|
|
#endif
|
|
#endif /* not lint */
|
|
|
|
#define MALLOC_INCR 128
|
|
|
|
/*
|
|
* tc.str.c: Short string package
|
|
* This has been a lesson of how to write buggy code!
|
|
*/
|
|
|
|
#include <sys/types.h>
|
|
|
|
#include <stdarg.h>
|
|
#include <vis.h>
|
|
|
|
#include "csh.h"
|
|
#include "extern.h"
|
|
|
|
#ifdef SHORT_STRINGS
|
|
|
|
Char **
|
|
blk2short(char **src)
|
|
{
|
|
Char **dst, **sdst;
|
|
size_t n;
|
|
|
|
/*
|
|
* Count
|
|
*/
|
|
for (n = 0; src[n] != NULL; n++)
|
|
continue;
|
|
sdst = dst = xmalloc((size_t)((n + 1) * sizeof(*dst)));
|
|
|
|
for (; *src != NULL; src++)
|
|
*dst++ = SAVE(*src);
|
|
*dst = NULL;
|
|
return (sdst);
|
|
}
|
|
|
|
char **
|
|
short2blk(Char *const *src)
|
|
{
|
|
char **dst, **sdst;
|
|
size_t n;
|
|
|
|
/*
|
|
* Count
|
|
*/
|
|
for (n = 0; src[n] != NULL; n++)
|
|
continue;
|
|
sdst = dst = xmalloc((size_t)((n + 1) * sizeof(*dst)));
|
|
|
|
for (; *src != NULL; src++)
|
|
*dst++ = strsave(short2str(*src));
|
|
*dst = NULL;
|
|
return (sdst);
|
|
}
|
|
|
|
Char *
|
|
str2short(const char *src)
|
|
{
|
|
static Char *sdst;
|
|
Char *dst, *edst;
|
|
static size_t dstsize = 0;
|
|
|
|
if (src == NULL)
|
|
return (NULL);
|
|
|
|
if (sdst == (NULL)) {
|
|
dstsize = MALLOC_INCR;
|
|
sdst = xmalloc((size_t)dstsize * sizeof(*sdst));
|
|
}
|
|
|
|
dst = sdst;
|
|
edst = &dst[dstsize];
|
|
while (*src) {
|
|
*dst++ = (Char) ((unsigned char) *src++);
|
|
if (dst == edst) {
|
|
dstsize += MALLOC_INCR;
|
|
sdst = xrealloc((ptr_t)sdst,
|
|
(size_t)dstsize * sizeof(*sdst));
|
|
edst = &sdst[dstsize];
|
|
dst = &edst[-MALLOC_INCR];
|
|
}
|
|
}
|
|
*dst = 0;
|
|
return (sdst);
|
|
}
|
|
|
|
char *
|
|
short2str(const Char *src)
|
|
{
|
|
static char *sdst = NULL;
|
|
static size_t dstsize = 0;
|
|
char *dst, *edst;
|
|
|
|
if (src == NULL)
|
|
return (NULL);
|
|
|
|
if (sdst == NULL) {
|
|
dstsize = MALLOC_INCR;
|
|
sdst = xmalloc((size_t)dstsize * sizeof(*sdst));
|
|
}
|
|
dst = sdst;
|
|
edst = &dst[dstsize];
|
|
while (*src) {
|
|
*dst++ = (char) *src++;
|
|
if (dst == edst) {
|
|
dstsize += MALLOC_INCR;
|
|
sdst = xrealloc((ptr_t)sdst,
|
|
(size_t)dstsize * sizeof(*sdst));
|
|
edst = &sdst[dstsize];
|
|
dst = &edst[-MALLOC_INCR];
|
|
}
|
|
}
|
|
*dst = 0;
|
|
return (sdst);
|
|
}
|
|
|
|
Char *
|
|
s_strcpy(Char *dst, const Char *src)
|
|
{
|
|
Char *sdst;
|
|
|
|
sdst = dst;
|
|
while ((*dst++ = *src++) != '\0')
|
|
continue;
|
|
return (sdst);
|
|
}
|
|
|
|
Char *
|
|
s_strncpy(Char *dst, const Char *src, size_t n)
|
|
{
|
|
Char *sdst;
|
|
|
|
if (n == 0)
|
|
return(dst);
|
|
|
|
sdst = dst;
|
|
do
|
|
if ((*dst++ = *src++) == '\0') {
|
|
while (--n != 0)
|
|
*dst++ = '\0';
|
|
return(sdst);
|
|
}
|
|
while (--n != 0);
|
|
return (sdst);
|
|
}
|
|
|
|
Char *
|
|
s_strcat(Char *dst, const Char *src)
|
|
{
|
|
short *sdst;
|
|
|
|
sdst = dst;
|
|
while (*dst++)
|
|
continue;
|
|
--dst;
|
|
while ((*dst++ = *src++) != '\0')
|
|
continue;
|
|
return (sdst);
|
|
}
|
|
|
|
#ifdef NOTUSED
|
|
Char *
|
|
s_strncat(Char *dst, Char *src, size_t n)
|
|
{
|
|
Char *sdst;
|
|
|
|
if (n == 0)
|
|
return (dst);
|
|
|
|
sdst = dst;
|
|
|
|
while (*dst++)
|
|
continue;
|
|
--dst;
|
|
|
|
do
|
|
if ((*dst++ = *src++) == '\0')
|
|
return(sdst);
|
|
while (--n != 0)
|
|
continue;
|
|
|
|
*dst = '\0';
|
|
return (sdst);
|
|
}
|
|
|
|
#endif
|
|
|
|
Char *
|
|
s_strchr(const Char *str, int ch)
|
|
{
|
|
do
|
|
if (*str == ch)
|
|
return __UNCONST(str);
|
|
while (*str++);
|
|
return (NULL);
|
|
}
|
|
|
|
Char *
|
|
s_strrchr(const Char *str, int ch)
|
|
{
|
|
const Char *rstr;
|
|
|
|
rstr = NULL;
|
|
do
|
|
if (*str == ch)
|
|
rstr = str;
|
|
while (*str++);
|
|
return __UNCONST(rstr);
|
|
}
|
|
|
|
size_t
|
|
s_strlen(const Char *str)
|
|
{
|
|
size_t n;
|
|
|
|
for (n = 0; *str++; n++)
|
|
continue;
|
|
return (n);
|
|
}
|
|
|
|
int
|
|
s_strcmp(const Char *str1, const Char *str2)
|
|
{
|
|
for (; *str1 && *str1 == *str2; str1++, str2++)
|
|
continue;
|
|
/*
|
|
* The following case analysis is necessary so that characters which look
|
|
* negative collate low against normal characters but high against the
|
|
* end-of-string NUL.
|
|
*/
|
|
if (*str1 == '\0' && *str2 == '\0')
|
|
return (0);
|
|
else if (*str1 == '\0')
|
|
return (-1);
|
|
else if (*str2 == '\0')
|
|
return (1);
|
|
else
|
|
return (*str1 - *str2);
|
|
}
|
|
|
|
int
|
|
s_strncmp(const Char *str1, const Char *str2, size_t n)
|
|
{
|
|
if (n == 0)
|
|
return (0);
|
|
do {
|
|
if (*str1 != *str2) {
|
|
/*
|
|
* The following case analysis is necessary so that characters
|
|
* which look negative collate low against normal characters
|
|
* but high against the end-of-string NUL.
|
|
*/
|
|
if (*str1 == '\0')
|
|
return (-1);
|
|
else if (*str2 == '\0')
|
|
return (1);
|
|
else
|
|
return (*str1 - *str2);
|
|
}
|
|
if (*str1 == '\0')
|
|
return(0);
|
|
str1++, str2++;
|
|
} while (--n != 0);
|
|
return(0);
|
|
}
|
|
|
|
Char *
|
|
s_strsave(const Char *s)
|
|
{
|
|
const Char *p;
|
|
Char *n;
|
|
|
|
if (s == 0)
|
|
s = STRNULL;
|
|
for (p = s; *p++;)
|
|
continue;
|
|
p = n = xmalloc((size_t)(p - s) * sizeof(*n));
|
|
while ((*n++ = *s++) != '\0')
|
|
continue;
|
|
return __UNCONST(p);
|
|
}
|
|
|
|
Char *
|
|
s_strspl(const Char *cp, const Char *dp)
|
|
{
|
|
Char *ep, *d;
|
|
const Char *p, *q;
|
|
|
|
if (!cp)
|
|
cp = STRNULL;
|
|
if (!dp)
|
|
dp = STRNULL;
|
|
for (p = cp; *p++;)
|
|
continue;
|
|
for (q = dp; *q++;)
|
|
continue;
|
|
ep = xmalloc((size_t)((p - cp) + (q - dp) - 1) * sizeof(*ep));
|
|
for (d = ep, q = cp; (*d++ = *q++) != '\0';)
|
|
continue;
|
|
for (d--, q = dp; (*d++ = *q++) != '\0';)
|
|
continue;
|
|
return (ep);
|
|
}
|
|
|
|
Char *
|
|
s_strend(const Char *cp)
|
|
{
|
|
if (!cp)
|
|
return __UNCONST(cp);
|
|
while (*cp)
|
|
cp++;
|
|
return __UNCONST(cp);
|
|
}
|
|
|
|
Char *
|
|
s_strstr(const Char *s, const Char *t)
|
|
{
|
|
do {
|
|
const Char *ss = s;
|
|
const Char *tt = t;
|
|
|
|
do
|
|
if (*tt == '\0')
|
|
return __UNCONST(s);
|
|
while (*ss++ == *tt++);
|
|
} while (*s++ != '\0');
|
|
return (NULL);
|
|
}
|
|
#endif /* SHORT_STRINGS */
|
|
|
|
char *
|
|
short2qstr(const Char *src)
|
|
{
|
|
static char *sdst = NULL;
|
|
static size_t dstsize = 0;
|
|
char *dst, *edst;
|
|
|
|
if (src == NULL)
|
|
return (NULL);
|
|
|
|
if (sdst == NULL) {
|
|
dstsize = MALLOC_INCR;
|
|
sdst = xmalloc((size_t)dstsize * sizeof(*sdst));
|
|
}
|
|
dst = sdst;
|
|
edst = &dst[dstsize];
|
|
while (*src) {
|
|
|
|
if (*src & QUOTE) {
|
|
*dst++ = '\\';
|
|
if (dst == edst) {
|
|
dstsize += MALLOC_INCR;
|
|
sdst = xrealloc((ptr_t) sdst,
|
|
(size_t)dstsize * sizeof(*sdst));
|
|
edst = &sdst[dstsize];
|
|
dst = &edst[-MALLOC_INCR];
|
|
}
|
|
}
|
|
*dst++ = (char) *src++;
|
|
if (dst == edst) {
|
|
dstsize += MALLOC_INCR;
|
|
sdst = xrealloc((ptr_t) sdst,
|
|
(size_t)dstsize * sizeof(*sdst));
|
|
edst = &sdst[dstsize];
|
|
dst = &edst[-MALLOC_INCR];
|
|
}
|
|
}
|
|
*dst = 0;
|
|
return (sdst);
|
|
}
|
|
|
|
/*
|
|
* XXX: Should we worry about QUOTE'd chars?
|
|
*/
|
|
char *
|
|
vis_str(const Char *cp)
|
|
{
|
|
static char *sdst = NULL;
|
|
static size_t dstsize = 0;
|
|
const Char *dp;
|
|
size_t n;
|
|
|
|
if (cp == NULL)
|
|
return (NULL);
|
|
|
|
for (dp = cp; *dp++;)
|
|
continue;
|
|
n = ((size_t)(dp - cp) << 2) + 1; /* 4 times + NULL */
|
|
if (dstsize < n) {
|
|
sdst = (dstsize ?
|
|
xrealloc(sdst, (size_t)n * sizeof(*sdst)) :
|
|
xmalloc((size_t)n * sizeof(*sdst)));
|
|
dstsize = n;
|
|
}
|
|
/*
|
|
* XXX: When we are in AsciiOnly we want all characters >= 0200 to
|
|
* be encoded, but currently there is no way in vis to do that.
|
|
*/
|
|
(void)strvis(sdst, short2str(cp), VIS_NOSLASH);
|
|
return (sdst);
|
|
}
|