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php-src/ext/standard/string.c
Andi Gutmans 7fbdc83318 - Fix whitespace
2001-02-26 15:49:38 +00:00

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/*
+----------------------------------------------------------------------+
| PHP version 4.0 |
+----------------------------------------------------------------------+
| Copyright (c) 1997-2001 The PHP Group |
+----------------------------------------------------------------------+
| This source file is subject to version 2.02 of the PHP license, |
| that is bundled with this package in the file LICENSE, and is |
| available at through the world-wide-web at |
| http://www.php.net/license/2_02.txt. |
| If you did not receive a copy of the PHP license and are unable to |
| obtain it through the world-wide-web, please send a note to |
| license@php.net so we can mail you a copy immediately. |
+----------------------------------------------------------------------+
| Authors: Rasmus Lerdorf <rasmus@php.net> |
| Stig Sæther Bakken <ssb@fast.no> |
| Zeev Suraski <zeev@zend.com> |
+----------------------------------------------------------------------+
*/
/* $Id$ */
/* Synced with php 3.0 revision 1.193 1999-06-16 [ssb] */
#include <stdio.h>
#include "php.h"
#include "reg.h"
#include "php_string.h"
#include "php_variables.h"
#ifdef HAVE_LOCALE_H
# include <locale.h>
#endif
#include "scanf.h"
#include "zend_API.h"
#include "zend_execute.h"
#include "php_globals.h"
#include "basic_functions.h"
#include "php_smart_str.h"
#ifdef ZTS
#include "TSRM.h"
#endif
#define STR_PAD_LEFT 0
#define STR_PAD_RIGHT 1
#define STR_PAD_BOTH 2
#define PHP_PATHINFO_DIRNAME 0
#define PHP_PATHINFO_BASENAME 1
#define PHP_PATHINFO_EXTENSION 2
void register_string_constants(INIT_FUNC_ARGS)
{
REGISTER_LONG_CONSTANT("STR_PAD_LEFT", STR_PAD_LEFT, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("STR_PAD_RIGHT", STR_PAD_RIGHT, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("STR_PAD_BOTH", STR_PAD_BOTH, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("PATHINFO_DIRNAME", PHP_PATHINFO_DIRNAME, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("PATHINFO_BASENAME", PHP_PATHINFO_BASENAME, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("PATHINFO_EXTENSION", PHP_PATHINFO_EXTENSION, CONST_CS | CONST_PERSISTENT);
#ifdef HAVE_LOCALECONV
/* If last members of struct lconv equal CHAR_MAX, no grouping is done */
/* This is bad, but since we are going to be hardcoding in the POSIX stuff anyway... */
# ifndef HAVE_LIMITS_H
# define CHAR_MAX 127
# endif
REGISTER_LONG_CONSTANT("CHAR_MAX", CHAR_MAX, CONST_CS | CONST_PERSISTENT);
#endif
#ifdef HAVE_LOCALE_H
REGISTER_LONG_CONSTANT("LC_CTYPE", LC_CTYPE, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("LC_NUMERIC", LC_NUMERIC, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("LC_TIME", LC_TIME, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("LC_COLLATE", LC_COLLATE, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("LC_MONETARY", LC_MONETARY, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("LC_ALL", LC_ALL, CONST_CS | CONST_PERSISTENT);
# ifdef LC_MESSAGES
REGISTER_LONG_CONSTANT("LC_MESSAGES", LC_MESSAGES, CONST_CS | CONST_PERSISTENT);
# endif
#endif
}
int php_tag_find(char *tag, int len, char *set);
/* this is read-only, so it's ok */
static char hexconvtab[] = "0123456789abcdef";
/* localeconv mutex */
#ifdef ZTS
static MUTEX_T locale_mutex = NULL;
#endif
static char *php_bin2hex(const unsigned char *old, const size_t oldlen, size_t *newlen)
{
unsigned char *result = NULL;
size_t i, j;
result = (char *) emalloc(oldlen * 2 * sizeof(char) + 1);
if(!result) {
return result;
}
for(i = j = 0; i < oldlen; i++) {
result[j++] = hexconvtab[old[i] >> 4];
result[j++] = hexconvtab[old[i] & 15];
}
result[j] = '\0';
if(newlen) *newlen = oldlen * 2 * sizeof(char);
return result;
}
#ifdef HAVE_LOCALECONV
/* glibc's localeconv is not reentrant, so lets make it so ... sorta */
struct lconv *localeconv_r(struct lconv *out)
{
struct lconv *res;
# ifdef ZTS
tsrm_mutex_lock( locale_mutex );
# endif
/* localeconv doesn't return an error condition */
res = localeconv();
*out = *res;
# ifdef ZTS
tsrm_mutex_unlock( locale_mutex );
# endif
return out;
}
# ifdef ZTS
PHP_MINIT_FUNCTION(localeconv)
{
locale_mutex = tsrm_mutex_alloc();
return SUCCESS;
}
PHP_MSHUTDOWN_FUNCTION(localeconv)
{
tsrm_mutex_free( locale_mutex );
locale_mutex = NULL;
return SUCCESS;
}
# endif
#endif
/* {{{ proto string bin2hex(string data)
Converts the binary representation of data to hex */
PHP_FUNCTION(bin2hex)
{
zval **data;
char *result;
size_t newlen;
if(ZEND_NUM_ARGS() != 1 || zend_get_parameters_ex(1, &data) == FAILURE) {
WRONG_PARAM_COUNT;
}
convert_to_string_ex(data);
result = php_bin2hex((*data)->value.str.val, (*data)->value.str.len, &newlen);
if(!result) {
RETURN_FALSE;
}
RETURN_STRINGL(result, newlen, 0);
}
/* }}} */
/* {{{ proto int strspn(string str, string mask)
Find length of initial segment consisting entirely of characters found in mask */
PHP_FUNCTION(strspn)
{
zval **s1,**s2;
if (ZEND_NUM_ARGS()!=2 || zend_get_parameters_ex(2, &s1, &s2) == FAILURE) {
WRONG_PARAM_COUNT;
}
convert_to_string_ex(s1);
convert_to_string_ex(s2);
RETURN_LONG(php_strspn((*s1)->value.str.val, (*s2)->value.str.val,
(*s1)->value.str.val + (*s1)->value.str.len,
(*s2)->value.str.val + (*s2)->value.str.len));
}
/* }}} */
/* {{{ proto int strcspn(string str, string mask)
Find length of initial segment consisting entirely of characters not found in mask */
PHP_FUNCTION(strcspn)
{
zval **s1,**s2;
if (ZEND_NUM_ARGS()!=2 || zend_get_parameters_ex(2, &s1, &s2) == FAILURE) {
WRONG_PARAM_COUNT;
}
convert_to_string_ex(s1);
convert_to_string_ex(s2);
RETURN_LONG(php_strcspn((*s1)->value.str.val, (*s2)->value.str.val,
(*s1)->value.str.val + (*s1)->value.str.len,
(*s2)->value.str.val + (*s2)->value.str.len));
}
/* }}} */
#ifdef HAVE_STRCOLL
/* {{{ proto int strcoll(string str1, string str2)
Compare two strings using the current locale */
PHP_FUNCTION(strcoll)
{
zval **s1, **s2;
if (ZEND_NUM_ARGS()!=2 || zend_get_parameters_ex(2, &s1, &s2) == FAILURE) {
WRONG_PARAM_COUNT;
}
convert_to_string_ex(s1);
convert_to_string_ex(s2);
RETURN_LONG(strcoll((const char *)(*s1)->value.str.val, (const char *)(*s2)->value.str.val));
}
#endif
PHPAPI void php_trim(zval *str, zval * return_value, int mode)
/* mode 1 : trim left
mode 2 : trim right
mode 3 : trim left and right
*/
{
register int i;
int len = str->value.str.len;
int trimmed = 0;
char *c = str->value.str.val;
if (mode & 1) {
for (i = 0; i < len; i++) {
if (c[i] == ' ' || c[i] == '\n' || c[i] == '\r' ||
c[i] == '\t' || c[i] == '\v' || c[i] == '\0') {
trimmed++;
} else {
break;
}
}
len -= trimmed;
c += trimmed;
}
if (mode & 2) {
for (i = len - 1; i >= 0; i--) {
if (c[i] == ' ' || c[i] == '\n' || c[i] == '\r' ||
c[i] == '\t' || c[i] == '\v' || c[i] == '\0') {
len--;
} else {
break;
}
}
}
RETVAL_STRINGL(c, len, 1);
}
/* {{{ proto string rtrim(string str)
An alias for chop */
/* }}} */
/* {{{ proto string chop(string str)
Remove trailing whitespace */
PHP_FUNCTION(chop)
{
zval **str;
if (ZEND_NUM_ARGS() != 1 || zend_get_parameters_ex(1, &str) == FAILURE) {
WRONG_PARAM_COUNT;
}
convert_to_string_ex(str);
if ((*str)->type == IS_STRING) {
php_trim(*str, return_value, 2);
return;
}
RETURN_FALSE;
}
/* }}} */
/* {{{ proto string trim(string str)
Strip whitespace from the beginning and end of a string */
PHP_FUNCTION(trim)
{
zval **str;
if (ZEND_NUM_ARGS() != 1 || zend_get_parameters_ex(1, &str) == FAILURE) {
WRONG_PARAM_COUNT;
}
convert_to_string_ex(str);
if ((*str)->type == IS_STRING) {
php_trim(*str, return_value, 3);
return;
}
RETURN_FALSE;
}
/* }}} */
/* {{{ proto string ltrim(string str)
Strip whitespace from the beginning of a string */
PHP_FUNCTION(ltrim)
{
zval **str;
if (ZEND_NUM_ARGS() != 1 || zend_get_parameters_ex(1, &str) == FAILURE) {
WRONG_PARAM_COUNT;
}
convert_to_string_ex(str);
if ((*str)->type == IS_STRING) {
php_trim(*str, return_value, 1);
return;
}
RETURN_FALSE;
}
/* }}} */
/* {{{ proto string wordwrap(string str [, int width [, string break [, int cut]]])
Wrap buffer to selected number of characters using string break char */
PHP_FUNCTION(wordwrap)
{
pval **ptext, **plinelength, **pbreakchar, **cut;
long i=0, l=0, pgr=0, linelength=0, last=0, breakcharlen, docut=0;
char *text, *breakchar, *newtext;
if (ZEND_NUM_ARGS() < 1 || ZEND_NUM_ARGS() > 4 || zend_get_parameters_ex(ZEND_NUM_ARGS(), &ptext, &plinelength, &pbreakchar, &cut) == FAILURE) {
WRONG_PARAM_COUNT;
}
convert_to_string_ex(ptext);
if (Z_STRVAL_PP(ptext) == 0)
RETVAL_FALSE;
text = (*ptext)->value.str.val;
if (ZEND_NUM_ARGS() > 1) {
convert_to_long_ex(plinelength);
linelength = (*plinelength)->value.lval;
}
else {
linelength = 75;
}
if (ZEND_NUM_ARGS() > 2) {
convert_to_string_ex(pbreakchar);
breakchar = (*pbreakchar)->value.str.val;
breakcharlen = (*pbreakchar)->value.str.len;
}
else {
breakchar = "\n";
breakcharlen = 1;
}
if (ZEND_NUM_ARGS() > 3) {
convert_to_long_ex(cut);
docut = (*cut)->value.lval;
}
/* Special case for a single-character break as it needs no
additional storage space */
if (breakcharlen == 1 && docut == 0) {
newtext = estrdup (text);
while (newtext[i] != '\0') {
/* prescan line to see if it is greater than linelength */
l = 0;
while (newtext[i+l] != breakchar[0]) {
if (newtext[i+l] == '\0') {
l--;
break;
}
l++;
}
if (l >= linelength) {
pgr = l;
l = linelength;
/* needs breaking; work backwards to find previous word */
while (l >= 0) {
if (newtext[i+l] == ' ') {
newtext[i+l] = breakchar[0];
break;
}
l--;
}
if (l == -1) {
/* couldn't break is backwards, try looking forwards */
l = linelength;
while (l <= pgr) {
if(newtext[i+l] == ' ') {
newtext[i+l] = breakchar[0];
break;
}
l++;
}
}
}
i += l+1;
}
RETVAL_STRINGL(newtext, strlen(newtext), 1);
efree(newtext);
}
else {
/* Multiple character line break */
newtext = emalloc((*ptext)->value.str.len * (breakcharlen+1)+1);
newtext[0] = '\0';
i = 0;
while (text[i] != '\0') {
/* prescan line to see if it is greater than linelength */
l = 0;
while (text[i+l] != '\0') {
if (text[i+l] == breakchar[0]) {
if (breakcharlen == 1 || strncmp(text+i+l, breakchar, breakcharlen)==0)
break;
}
l++;
}
if (l >= linelength) {
pgr = l;
l = linelength;
/* needs breaking; work backwards to find previous word */
while (l >= 0) {
if (text[i+l] == ' ') {
strncat(newtext, text+last, i+l-last);
strcat(newtext, breakchar);
last = i + l + 1;
break;
}
l--;
}
if (l == -1) {
/* couldn't break it backwards, try looking forwards */
l = linelength - 1;
while (l <= pgr) {
if (docut == 0)
{
if (text[i+l] == ' ') {
strncat(newtext, text+last, i+l-last);
strcat(newtext, breakchar);
last = i + l + 1;
break;
}
}
if (docut == 1)
{
if (text[i+l] == ' ' || l > i-last) {
strncat(newtext, text+last, i+l-last+1);
strcat(newtext, breakchar);
last = i + l + 1;
break;
}
}
l++;
}
}
i += l+1;
}
else {
i += (l ? l : 1);
}
}
if (i+l > last) {
strcat(newtext, text+last);
}
RETVAL_STRINGL(newtext, strlen(newtext), 1);
efree(newtext);
}
}
/* }}} */
PHPAPI void php_explode(zval *delim, zval *str, zval *return_value, int limit)
{
char *p1, *p2, *endp;
endp = str->value.str.val + str->value.str.len;
p1 = str->value.str.val;
p2 = php_memnstr(str->value.str.val, delim->value.str.val, delim->value.str.len, endp);
if (p2 == NULL) {
add_next_index_stringl(return_value, p1, str->value.str.len, 1);
} else {
do {
add_next_index_stringl(return_value, p1, p2-p1, 1);
p1 = p2 + delim->value.str.len;
} while ((p2 = php_memnstr(p1, delim->value.str.val, delim->value.str.len, endp)) != NULL &&
(limit == -1 || --limit > 1));
if (p1 <= endp)
add_next_index_stringl(return_value, p1, endp-p1, 1);
}
}
/* {{{ proto array explode(string separator, string str [, int limit])
Split a string on string separator and return array of components */
PHP_FUNCTION(explode)
{
zval **str, **delim, **zlimit = NULL;
int limit;
switch (ZEND_NUM_ARGS()) {
case 2:
if (zend_get_parameters_ex(2, &delim, &str) == FAILURE)
WRONG_PARAM_COUNT;
limit=-1;
break;
case 3:
if (zend_get_parameters_ex(3, &delim, &str, &zlimit) == FAILURE)
WRONG_PARAM_COUNT;
convert_to_long_ex(zlimit);
limit = (*zlimit)->value.lval;
break;
default:
WRONG_PARAM_COUNT;
}
convert_to_string_ex(str);
convert_to_string_ex(delim);
if (! (*delim)->value.str.len) {
php_error(E_WARNING,"Empty delimiter");
RETURN_FALSE;
}
if (array_init(return_value) == FAILURE) {
RETURN_FALSE;
}
if(limit==0 || limit==1) {
add_index_stringl(return_value, 0, (*str)->value.str.val, (*str)->value.str.len, 1);
} else {
php_explode(*delim, *str, return_value, limit);
}
}
/* }}} */
/* {{{ proto string join(array src, string glue)
An alias for implode */
/* }}} */
PHPAPI void php_implode(zval *delim, zval *arr, zval *return_value)
{
zval **tmp;
int len = 0, count = 0, target = 0;
HashPosition pos;
/* convert everything to strings, and calculate length */
zend_hash_internal_pointer_reset_ex(arr->value.ht, &pos);
while (zend_hash_get_current_data_ex(arr->value.ht, (void **) &tmp, &pos) == SUCCESS) {
convert_to_string_ex(tmp);
len += (*tmp)->value.str.len;
if (count>0) {
len += delim->value.str.len;
}
count++;
zend_hash_move_forward_ex(arr->value.ht, &pos);
}
/* do it */
return_value->value.str.val = (char *) emalloc(len + 1);
return_value->value.str.val[0] = '\0';
return_value->value.str.val[len] = '\0';
zend_hash_internal_pointer_reset_ex(arr->value.ht, &pos);
while (zend_hash_get_current_data_ex(arr->value.ht, (void **) &tmp, &pos) == SUCCESS) {
count--;
memcpy(return_value->value.str.val + target, (*tmp)->value.str.val,
(*tmp)->value.str.len);
target += (*tmp)->value.str.len;
if (count > 0) {
memcpy(return_value->value.str.val + target, delim->value.str.val,
delim->value.str.len);
target += delim->value.str.len;
}
zend_hash_move_forward_ex(arr->value.ht, &pos);
}
return_value->type = IS_STRING;
return_value->value.str.len = len;
}
/* {{{ proto string implode(array src, string glue)
Join array elements placing glue string between items and return one string */
PHP_FUNCTION(implode)
{
zval **arg1, **arg2, *delim, *arr;
if (ZEND_NUM_ARGS() != 2 || zend_get_parameters_ex(2, &arg1, &arg2) == FAILURE) {
WRONG_PARAM_COUNT;
}
if ((*arg1)->type == IS_ARRAY) {
SEPARATE_ZVAL(arg1);
arr = *arg1;
convert_to_string_ex(arg2);
delim = *arg2;
} else if ((*arg2)->type == IS_ARRAY) {
SEPARATE_ZVAL(arg2)
arr = *arg2;
convert_to_string_ex(arg1);
delim = *arg1;
} else {
php_error(E_WARNING, "Bad arguments to %s()",
get_active_function_name());
return;
}
php_implode(delim, arr, return_value);
}
/* }}} */
/* {{{ proto string strtok([string str,] string token)
Tokenize a string */
PHP_FUNCTION(strtok)
{
zval **str, **tok;
char *token = NULL, *tokp=NULL;
char *first = NULL;
int argc;
BLS_FETCH();
argc = ZEND_NUM_ARGS();
if ((argc == 1 && zend_get_parameters_ex(1, &tok) == FAILURE) ||
(argc == 2 && zend_get_parameters_ex(2, &str, &tok) == FAILURE) ||
argc < 1 || argc > 2) {
WRONG_PARAM_COUNT;
}
convert_to_string_ex(tok);
tokp = token = (*tok)->value.str.val;
if (argc == 2) {
convert_to_string_ex(str);
STR_FREE(BG(strtok_string));
BG(strtok_string) = estrndup((*str)->value.str.val,(*str)->value.str.len);
BG(strtok_pos1) = BG(strtok_string);
BG(strtok_pos2) = NULL;
}
if (BG(strtok_pos1) && *BG(strtok_pos1)) {
for ( /* NOP */ ; token && *token; token++) {
BG(strtok_pos2) = strchr(BG(strtok_pos1), (int) *token);
if (!first || (BG(strtok_pos2) && BG(strtok_pos2) < first)) {
first = BG(strtok_pos2);
}
} /* NB: token is unusable now */
BG(strtok_pos2) = first;
if (BG(strtok_pos2)) {
*BG(strtok_pos2) = '\0';
}
RETVAL_STRING(BG(strtok_pos1),1);
#if 0
/* skip 'token' white space for next call to strtok */
while (BG(strtok_pos2) &&
strchr(tokp, *(BG(strtok_pos2)+1))) {
BG(strtok_pos2)++;
}
#endif
if (BG(strtok_pos2))
BG(strtok_pos1) = BG(strtok_pos2) + 1;
else
BG(strtok_pos1) = NULL;
} else {
RETVAL_FALSE;
}
}
/* }}} */
PHPAPI char *php_strtoupper(char *s, size_t len)
{
char *c;
int ch;
size_t i;
c = s;
for (i=0; i<len; i++) {
ch = toupper((unsigned char)*c);
*c++ = ch;
}
return (s);
}
/* {{{ proto string strtoupper(string str)
Make a string uppercase */
PHP_FUNCTION(strtoupper)
{
zval **arg;
if (ZEND_NUM_ARGS() != 1 || zend_get_parameters_ex(1, &arg)) {
WRONG_PARAM_COUNT;
}
convert_to_string_ex(arg);
*return_value = **arg;
zval_copy_ctor(return_value);
php_strtoupper(return_value->value.str.val, return_value->value.str.len);
}
/* }}} */
PHPAPI char *php_strtolower(char *s, size_t len)
{
register int ch;
char *c;
size_t i;
c = s;
for (i=0; i<len; i++) {
ch = tolower((unsigned char)*c);
*c++ = ch;
}
return (s);
}
/* {{{ proto string strtolower(string str)
Make a string lowercase */
PHP_FUNCTION(strtolower)
{
zval **str;
char *ret;
if (ZEND_NUM_ARGS() != 1 || zend_get_parameters_ex(1, &str)) {
WRONG_PARAM_COUNT;
}
convert_to_string_ex(str);
*return_value = **str;
zval_copy_ctor(return_value);
ret = php_strtolower(return_value->value.str.val, return_value->value.str.len);
}
/* }}} */
PHPAPI char *php_basename(char *s, size_t len)
{
char *ret=NULL, *c, *p=NULL, buf='\0';
c = s + len - 1;
/* strip trailing slashes */
while (*c == '/'
#ifdef PHP_WIN32
|| *c == '\\'
#endif
)
c--;
if(c < s+len-1) {
buf = *(c + 1); /* Save overwritten char */
*(c + 1) = '\0'; /* overwrite char */
p = c + 1; /* Save pointer to overwritten char */
}
if ((c = strrchr(s, '/'))
#ifdef PHP_WIN32
|| (c = strrchr(s, '\\'))
#endif
) {
ret = estrdup(c + 1);
} else {
ret = estrdup(s);
}
if(buf) *p = buf;
return (ret);
}
/* {{{ proto string basename(string path)
Return the filename component of the path */
PHP_FUNCTION(basename)
{
zval **str;
char *ret;
if (ZEND_NUM_ARGS() != 1 || zend_get_parameters_ex(1, &str)) {
WRONG_PARAM_COUNT;
}
convert_to_string_ex(str);
ret = php_basename(Z_STRVAL_PP(str), Z_STRLEN_PP(str));
RETVAL_STRING(ret, 0)
}
/* }}} */
/* This function doesn't work with absolute paths in Win32 such as C:\foo
* (and it didn't before either). This needs to be fixed
*/
PHPAPI void php_dirname(char *path, int len)
{
register char *end = path + len - 1;
if (len <= 0) {
/* Illegal use of this function */
return;
}
/* Strip trailing slashes */
while (end >= path && IS_SLASH(*end)) {
end--;
}
if (end < path) {
/* The path only contained slashes */
path[0] = DEFAULT_SLASH;
path[1] = '\0';
return;
}
/* Strip filename */
while (end >= path && !IS_SLASH(*end)) {
end--;
}
if (end < path) {
/* No slash found, therefore return '.' */
path[0] = '.';
path[1] = '\0';
return;
}
/* Strip slashes which came before the file name */
while (end >= path && IS_SLASH(*end)) {
end--;
}
if (end < path) {
path[0] = DEFAULT_SLASH;
path[1] = '\0';
return;
}
*(end+1) = '\0';
}
/* {{{ proto string dirname(string path)
Return the directory name component of the path */
PHP_FUNCTION(dirname)
{
zval **str;
char *ret;
if (ZEND_NUM_ARGS() != 1 || zend_get_parameters_ex(1, &str) == FAILURE) {
WRONG_PARAM_COUNT;
}
convert_to_string_ex(str);
ret = estrndup(Z_STRVAL_PP(str), Z_STRLEN_PP(str));
php_dirname(ret, Z_STRLEN_PP(str));
RETVAL_STRING(ret, 0);
}
/* }}} */
/* {{{ proto array pathinfo(string path)
Return information about a certain string */
PHP_FUNCTION(pathinfo)
{
zval **path, **uopt, *tmp;
char *ret;
int argc = ZEND_NUM_ARGS(), opt, len;
if (argc < 1 || argc > 2 ||
zend_get_parameters_ex(argc, &path, &uopt) == FAILURE) {
WRONG_PARAM_COUNT;
}
convert_to_string_ex(path);
len = Z_STRLEN_PP(path);
if (argc > 1) {
convert_to_long_ex(uopt);
opt = Z_LVAL_PP(uopt);
if (opt < PHP_PATHINFO_DIRNAME || opt > PHP_PATHINFO_EXTENSION) {
php_error(E_WARNING, "Invalid option in call to %s()",
get_active_function_name());
return;
}
}
MAKE_STD_ZVAL(tmp);
array_init(tmp);
if (argc < 2 || opt == PHP_PATHINFO_DIRNAME) {
ret = estrndup(Z_STRVAL_PP(path), len);
php_dirname(ret, len);
if (*ret)
add_assoc_string(tmp, "dirname", ret, 1);
efree(ret);
}
if (argc < 2 || opt == PHP_PATHINFO_BASENAME) {
ret = php_basename(Z_STRVAL_PP(path), len);
add_assoc_string(tmp, "basename", ret, 0);
}
if (argc < 2 || opt == PHP_PATHINFO_EXTENSION) {
char *p;
int idx;
p = strrchr(Z_STRVAL_PP(path), '.');
if (*p) {
idx = p - Z_STRVAL_PP(path);
add_assoc_stringl(tmp, "extension", Z_STRVAL_PP(path) + idx + 1, len - idx - 1, 1);
}
}
if (argc == 2) {
zval **element;
zend_hash_get_current_data(Z_ARRVAL_P(tmp), (void **)&element);
*return_value = **element;
} else {
*return_value = *tmp;
}
zval_copy_ctor(return_value);
zval_dtor(tmp);
efree(tmp);
}
/* }}} */
/* case insensitve strstr */
PHPAPI char *php_stristr(unsigned char *s, unsigned char *t,
size_t s_len, size_t t_len)
{
php_strtolower(s, s_len);
php_strtolower(t, t_len);
return php_memnstr(s, t, t_len, s + s_len);
}
PHPAPI size_t php_strspn(char *s1, char *s2, char *s1_end, char *s2_end)
{
register const char *p = s1, *spanp;
register char c = *p;
cont:
for (spanp = s2; p != s1_end && spanp != s2_end;)
if (*spanp++ == c) {
c = *(++p);
goto cont;
}
return (p - s1);
}
PHPAPI size_t php_strcspn(char *s1, char *s2, char *s1_end, char *s2_end)
{
register const char *p, *spanp;
register char c = *s1;
for (p = s1;;) {
spanp = s2;
do {
if (*spanp == c || p == s1_end)
return (p - s1);
} while (spanp++ < s2_end);
c = *(++p);
}
/* NOTREACHED */
}
/* {{{ proto string stristr(string haystack, string needle)
Find first occurrence of a string within another, case insensitive */
PHP_FUNCTION(stristr)
{
zval **haystack, **needle;
char *found = NULL;
int found_offset;
char *haystack_orig;
char needle_char[2];
if (ZEND_NUM_ARGS() != 2 || zend_get_parameters_ex(2, &haystack, &needle) ==
FAILURE) {
WRONG_PARAM_COUNT;
}
SEPARATE_ZVAL(haystack);
SEPARATE_ZVAL(needle);
convert_to_string_ex(haystack);
haystack_orig = estrndup((*haystack)->value.str.val,
(*haystack)->value.str.len);
if ((*needle)->type == IS_STRING) {
if ((*needle)->value.str.len==0) {
php_error(E_WARNING,"Empty delimiter");
efree(haystack_orig);
RETURN_FALSE;
}
found = php_stristr((*haystack)->value.str.val, (*needle)->value.str.val,
(*haystack)->value.str.len, (*needle)->value.str.len);
} else {
convert_to_long_ex(needle);
needle_char[0] = tolower((char) (*needle)->value.lval);
needle_char[1] = '\0';
found = php_stristr((*haystack)->value.str.val, needle_char,
(*haystack)->value.str.len, 1);
}
if (found) {
found_offset = found - (*haystack)->value.str.val;
RETVAL_STRINGL(haystack_orig + found_offset,
(*haystack)->value.str.len - found_offset, 1);
} else {
RETVAL_FALSE;
}
efree(haystack_orig);
}
/* }}} */
/* {{{ proto string strstr(string haystack, string needle)
Find first occurrence of a string within another */
PHP_FUNCTION(strstr)
{
zval **haystack, **needle;
char *haystack_end;
char *found = NULL;
char needle_char[2];
if (ZEND_NUM_ARGS() != 2 || zend_get_parameters_ex(2, &haystack, &needle) ==
FAILURE) {
WRONG_PARAM_COUNT;
}
convert_to_string_ex(haystack);
haystack_end = (*haystack)->value.str.val + (*haystack)->value.str.len;
if ((*needle)->type == IS_STRING) {
if ((*needle)->value.str.len==0) {
php_error(E_WARNING,"Empty delimiter");
RETURN_FALSE;
}
found = php_memnstr((*haystack)->value.str.val, (*needle)->value.str.val,
(*needle)->value.str.len, haystack_end);
} else {
convert_to_long_ex(needle);
needle_char[0] = (char) (*needle)->value.lval;
needle_char[1] = '\0';
found = php_memnstr((*haystack)->value.str.val, needle_char, 1, haystack_end);
}
if (found) {
RETVAL_STRING(found, 1);
} else {
RETVAL_FALSE;
}
}
/* }}} */
/* {{{ proto string strchr(string haystack, string needle)
An alias for strstr */
/* }}} */
/* {{{ proto int strpos(string haystack, string needle [, int offset])
Find position of first occurrence of a string within another */
PHP_FUNCTION(strpos)
{
zval **haystack, **needle, **OFFSET;
int offset = 0;
char *found = NULL;
char *endp;
char *startp;
switch(ZEND_NUM_ARGS()) {
case 2:
if (zend_get_parameters_ex(2, &haystack, &needle) == FAILURE) {
WRONG_PARAM_COUNT;
}
break;
case 3:
if (zend_get_parameters_ex(3, &haystack, &needle, &OFFSET) == FAILURE) {
WRONG_PARAM_COUNT;
}
convert_to_long_ex(OFFSET);
offset = (*OFFSET)->value.lval;
if (offset < 0) {
php_error(E_WARNING,"offset not contained in string");
RETURN_FALSE;
}
break;
default:
WRONG_PARAM_COUNT;
}
convert_to_string_ex(haystack);
if (offset > (*haystack)->value.str.len) {
php_error(E_WARNING,"offset not contained in string");
RETURN_FALSE;
}
startp = (*haystack)->value.str.val;
startp+= offset;
endp = (*haystack)->value.str.val;
endp+= (*haystack)->value.str.len;
if ((*needle)->type == IS_STRING) {
if ((*needle)->value.str.len==0) {
php_error(E_WARNING,"Empty delimiter");
RETURN_FALSE;
}
found = php_memnstr(startp, (*needle)->value.str.val, (*needle)->value.str.len, endp);
} else {
char buf;
convert_to_long_ex(needle);
buf = (char) (*needle)->value.lval;
found = php_memnstr(startp, &buf, 1, endp);
}
if (found) {
RETVAL_LONG(found - (*haystack)->value.str.val);
} else {
RETVAL_FALSE;
}
}
/* }}} */
/* {{{ proto int strrpos(string haystack, string needle)
Find position of last occurrence of a character in a string within another */
PHP_FUNCTION(strrpos)
{
zval **haystack, **needle;
char *found = NULL;
if (ZEND_NUM_ARGS() != 2 || zend_get_parameters_ex(2, &haystack, &needle) == FAILURE) {
WRONG_PARAM_COUNT;
}
convert_to_string_ex(haystack);
if ((*needle)->type == IS_STRING) {
found = strrchr((*haystack)->value.str.val, *(*needle)->value.str.val);
} else {
convert_to_long_ex(needle);
found = strrchr((*haystack)->value.str.val, (char) (*needle)->value.lval);
}
if (found) {
RETVAL_LONG((*haystack)->value.str.len - strlen(found));
} else {
RETVAL_FALSE;
}
}
/* }}} */
/* {{{ proto string strrchr(string haystack, string needle)
Find the last occurrence of a character in a string within another */
PHP_FUNCTION(strrchr)
{
zval **haystack, **needle;
char *found = NULL;
if (ZEND_NUM_ARGS() != 2 || zend_get_parameters_ex(2, &haystack, &needle) ==
FAILURE) {
WRONG_PARAM_COUNT;
}
convert_to_string_ex(haystack);
if ((*needle)->type == IS_STRING) {
found = strrchr((*haystack)->value.str.val, *(*needle)->value.str.val);
} else {
convert_to_long_ex(needle);
found = strrchr((*haystack)->value.str.val, (*needle)->value.lval);
}
if (found) {
RETVAL_STRING(found,1);
} else {
RETVAL_FALSE;
}
}
/* }}} */
static char *php_chunk_split(char *src, int srclen, char *end, int endlen,
int chunklen, int *destlen)
{
char *dest;
char *p, *q;
int chunks; /* complete chunks! */
int restlen;
chunks = srclen / chunklen;
restlen = srclen - chunks * chunklen; /* srclen % chunklen */
dest = emalloc((srclen + (chunks + 1) * endlen + 1) * sizeof(char));
for(p = src, q = dest; p < (src + srclen - chunklen + 1); ) {
memcpy(q, p, chunklen);
q += chunklen;
memcpy(q, end, endlen);
q += endlen;
p += chunklen;
}
if(restlen) {
memcpy(q, p, restlen);
q += restlen;
memcpy(q, end, endlen);
q += endlen;
}
*q = '\0';
if (destlen) {
*destlen = q - dest;
}
return(dest);
}
/* {{{ proto string chunk_split(string str [, int chunklen [, string ending]])
Return split line */
PHP_FUNCTION(chunk_split)
{
zval **p_str, **p_chunklen, **p_ending;
int argc;
char *result;
char *end = "\r\n";
int endlen = 2;
int chunklen = 76;
int result_len;
argc = ZEND_NUM_ARGS();
if (argc < 1 || argc > 3 ||
zend_get_parameters_ex(argc, &p_str, &p_chunklen, &p_ending) == FAILURE) {
WRONG_PARAM_COUNT;
}
switch(argc) {
case 3:
convert_to_string_ex(p_ending);
end = (*p_ending)->value.str.val;
endlen = (*p_ending)->value.str.len;
case 2:
convert_to_long_ex(p_chunklen);
chunklen = (*p_chunklen)->value.lval;
case 1:
convert_to_string_ex(p_str);
}
if(chunklen <= 0) {
php_error(E_WARNING, "Chunk length should be greater than zero");
RETURN_FALSE;
}
if((*p_str)->value.str.len == 0) {
RETURN_EMPTY_STRING();
}
result = php_chunk_split((*p_str)->value.str.val, (*p_str)->value.str.len,
end, endlen, chunklen, &result_len);
if(result) {
RETVAL_STRINGL(result, result_len, 0);
} else {
RETURN_FALSE;
}
}
/* }}} */
/* {{{ proto string substr(string str, int start [, int length])
Return part of a string */
PHP_FUNCTION(substr)
{
zval **str, **from, **len;
int argc, l;
int f;
argc = ZEND_NUM_ARGS();
if ((argc == 2 && zend_get_parameters_ex(2, &str, &from) == FAILURE) ||
(argc == 3 && zend_get_parameters_ex(3, &str, &from, &len) == FAILURE) ||
argc < 2 || argc > 3) {
WRONG_PARAM_COUNT;
}
convert_to_string_ex(str);
convert_to_long_ex(from);
f = (*from)->value.lval;
if (argc == 2) {
l = (*str)->value.str.len;
} else {
convert_to_long_ex(len);
l = (*len)->value.lval;
}
/* if "from" position is negative, count start position from the end
* of the string
*/
if (f < 0) {
f = (*str)->value.str.len + f;
if (f < 0) {
f = 0;
}
}
/* if "length" position is negative, set it to the length
* needed to stop that many chars from the end of the string
*/
if (l < 0) {
l = ((*str)->value.str.len - f) + l;
if (l < 0) {
l = 0;
}
}
if (f >= (int)(*str)->value.str.len) {
RETURN_FALSE;
}
if((f+l) > (int)(*str)->value.str.len) {
l = (int)(*str)->value.str.len - f;
}
RETVAL_STRINGL((*str)->value.str.val + f, l, 1);
}
/* }}} */
/* {{{ proto string substr_replace(string str, string repl, int start [, int length])
Replace part of a string with another string */
PHP_FUNCTION(substr_replace)
{
zval** str;
zval** from;
zval** len;
zval** repl;
char* result;
int result_len;
int argc;
int l;
int f;
argc = ZEND_NUM_ARGS();
if ((argc == 3 && zend_get_parameters_ex(3, &str, &repl, &from) == FAILURE) ||
(argc == 4 && zend_get_parameters_ex(4, &str, &repl, &from, &len) == FAILURE) ||
argc < 3 || argc > 4) {
WRONG_PARAM_COUNT;
}
convert_to_string_ex(str);
convert_to_string_ex(repl);
convert_to_long_ex(from);
f = (*from)->value.lval;
if (argc == 3) {
l = (*str)->value.str.len;
} else {
convert_to_long_ex(len);
l = (*len)->value.lval;
}
/* if "from" position is negative, count start position from the end
* of the string
*/
if (f < 0) {
f = (*str)->value.str.len + f;
if (f < 0) {
f = 0;
}
} else if (f > (int)(*str)->value.str.len)
f = (int)(*str)->value.str.len;
/* if "length" position is negative, set it to the length
* needed to stop that many chars from the end of the string
*/
if (l < 0) {
l = ((*str)->value.str.len - f) + l;
if (l < 0) {
l = 0;
}
}
if((f+l) > (int)(*str)->value.str.len) {
l = (int)(*str)->value.str.len - f;
}
result_len = (*str)->value.str.len - l + (*repl)->value.str.len;
result = (char *)ecalloc(result_len + 1, sizeof(char *));
memcpy(result, (*str)->value.str.val, f);
memcpy(&result[f], (*repl)->value.str.val, (*repl)->value.str.len);
memcpy(&result[f + (*repl)->value.str.len], (*str)->value.str.val + f + l,
(*str)->value.str.len - f - l);
RETVAL_STRINGL(result, result_len, 0);
}
/* }}} */
/* {{{ proto string quotemeta(string str)
Quote meta characters */
PHP_FUNCTION(quotemeta)
{
zval **arg;
char *str, *old;
char *old_end;
char *p, *q;
char c;
if (ZEND_NUM_ARGS() != 1 || zend_get_parameters_ex(1, &arg) == FAILURE) {
WRONG_PARAM_COUNT;
}
convert_to_string_ex(arg);
old = (*arg)->value.str.val;
old_end = (*arg)->value.str.val + (*arg)->value.str.len;
if (old == old_end) {
RETURN_FALSE;
}
str = emalloc(2 * (*arg)->value.str.len + 1);
for(p = old, q = str; p != old_end; p++) {
c = *p;
switch(c) {
case '.':
case '\\':
case '+':
case '*':
case '?':
case '[':
case '^':
case ']':
case '$':
case '(':
case ')':
*q++ = '\\';
/* break is missing _intentionally_ */
default:
*q++ = c;
}
}
*q = 0;
RETVAL_STRINGL(erealloc(str, q - str + 1), q - str, 0);
}
/* }}} */
/* {{{ proto int ord(string character)
Return ASCII value of character */
PHP_FUNCTION(ord)
{
zval **str;
if (ZEND_NUM_ARGS() != 1 || zend_get_parameters_ex(1, &str) == FAILURE) {
WRONG_PARAM_COUNT;
}
convert_to_string_ex(str);
RETVAL_LONG((unsigned char)(*str)->value.str.val[0]);
}
/* }}} */
/* {{{ proto string chr(int ascii)
Convert ASCII code to a character */
PHP_FUNCTION(chr)
{
zval **num;
char temp[2];
if (ZEND_NUM_ARGS() != 1 || zend_get_parameters_ex(1, &num) == FAILURE) {
WRONG_PARAM_COUNT;
}
convert_to_long_ex(num);
temp[0] = (char) (*num)->value.lval;
temp[1] = '\0';
RETVAL_STRINGL(temp, 1,1);
}
/* }}} */
/* {{{ proto string ucfirst(string str)
Make a string's first character uppercase */
PHP_FUNCTION(ucfirst)
{
zval **arg;
if (ZEND_NUM_ARGS() != 1 || zend_get_parameters_ex(1, &arg) == FAILURE) {
WRONG_PARAM_COUNT;
}
convert_to_string_ex(arg);
if (!*(*arg)->value.str.val) {
RETURN_FALSE;
}
*return_value=**arg;
zval_copy_ctor(return_value);
*return_value->value.str.val = toupper((unsigned char)*return_value->value.str.val);
}
/* }}} */
/* {{{ proto string ucwords(string str)
Uppercase the first character of every word in a string */
PHP_FUNCTION(ucwords)
{
zval **str;
register char *r, *r_end;
if (ZEND_NUM_ARGS() != 1 || zend_get_parameters_ex(1, &str) == FAILURE) {
WRONG_PARAM_COUNT;
}
convert_to_string_ex(str);
if (!Z_STRLEN_PP(str)) {
RETURN_FALSE;
}
*return_value=**str;
zval_copy_ctor(return_value);
r=return_value->value.str.val;
*r=toupper((unsigned char)*r);
for(r_end = r + return_value->value.str.len - 1 ; r < r_end ; ) {
if(isspace((int)*r++)) {
*r=toupper((unsigned char)*r);
}
}
}
/* }}} */
PHPAPI char *php_strtr(char *str, int len, char *str_from,
char *str_to, int trlen)
{
int i;
unsigned char xlat[256];
if ((trlen < 1) || (len < 1)) {
return str;
}
for (i = 0; i < 256; xlat[i] = i, i++);
for (i = 0; i < trlen; i++) {
xlat[(unsigned char) str_from[i]] = str_to[i];
}
for (i = 0; i < len; i++) {
str[i] = xlat[(unsigned char) str[i]];
}
return str;
}
static void php_strtr_array(zval *return_value,char *str,int slen,HashTable *hash)
{
zval *entry;
char *string_key;
zval **trans;
zval ctmp;
ulong num_key;
int minlen = 128*1024;
int maxlen = 0, pos, len, found;
char *key;
HashPosition hpos;
smart_str result = {0};
zend_hash_internal_pointer_reset_ex(hash, &hpos);
while (zend_hash_get_current_data_ex(hash, (void **)&entry, &hpos) == SUCCESS) {
switch (zend_hash_get_current_key_ex(hash, &string_key, NULL, &num_key, 0, &hpos)) {
case HASH_KEY_IS_STRING:
len = strlen(string_key);
if (len > maxlen) maxlen = len;
if (len < minlen) minlen = len;
break;
case HASH_KEY_IS_LONG:
ctmp.type = IS_LONG;
ctmp.value.lval = num_key;
convert_to_string(&ctmp);
len = ctmp.value.str.len;
zval_dtor(&ctmp);
if (len > maxlen) maxlen = len;
if (len < minlen) minlen = len;
break;
}
zend_hash_move_forward_ex(hash, &hpos);
}
key = emalloc(maxlen+1);
pos = 0;
while (pos < slen) {
if ((pos + maxlen) > slen) {
maxlen = slen - pos;
}
found = 0;
memcpy(key,str+pos,maxlen);
for (len = maxlen; len >= minlen; len--) {
key[ len ]=0;
if (zend_hash_find(hash,key,len+1,(void**)&trans) == SUCCESS) {
char *tval;
int tlen;
zval tmp;
if ((*trans)->type != IS_STRING) {
tmp = **trans;
zval_copy_ctor(&tmp);
convert_to_string(&tmp);
tval = tmp.value.str.val;
tlen = tmp.value.str.len;
} else {
tval = (*trans)->value.str.val;
tlen = (*trans)->value.str.len;
}
smart_str_appendl(&result, tval, tlen);
pos += len;
found = 1;
if ((*trans)->type != IS_STRING) {
zval_dtor(&tmp);
}
break;
}
}
if (! found) {
smart_str_appendc(&result, str[pos++]);
}
}
efree(key);
smart_str_0(&result);
RETVAL_STRINGL(result.c,result.len,0);
}
/* {{{ proto string strtr(string str, string from, string to)
Translate characters in str using given translation tables */
PHP_FUNCTION(strtr)
{ /* strtr(STRING,FROM,TO) */
zval **str, **from, **to;
int ac = ZEND_NUM_ARGS();
if (ac < 2 || ac > 3 || zend_get_parameters_ex(ac, &str, &from, &to) == FAILURE) {
WRONG_PARAM_COUNT;
}
if (ac == 2 && (*from)->type != IS_ARRAY) {
php_error(E_WARNING,"arg2 must be passed an array");
RETURN_FALSE;
}
convert_to_string_ex(str);
/* shortcut for empty string */
if(Z_STRLEN_PP(str) == 0) {
RETURN_EMPTY_STRING();
}
if (ac == 2) {
php_strtr_array(return_value,(*str)->value.str.val,(*str)->value.str.len,HASH_OF(*from));
} else {
convert_to_string_ex(from);
convert_to_string_ex(to);
*return_value=**str;
zval_copy_ctor(return_value);
php_strtr(return_value->value.str.val,
return_value->value.str.len,
(*from)->value.str.val,
(*to)->value.str.val,
MIN((*from)->value.str.len,(*to)->value.str.len));
}
}
/* }}} */
/* {{{ proto string strrev(string str)
Reverse a string */
PHP_FUNCTION(strrev)
{
zval **str;
int i,len;
char c;
if (ZEND_NUM_ARGS()!=1 || zend_get_parameters_ex(1, &str)==FAILURE) {
WRONG_PARAM_COUNT;
}
convert_to_string_ex(str);
*return_value = **str;
zval_copy_ctor(return_value);
len = return_value->value.str.len;
for (i=0; i<len-1-i; i++) {
c=return_value->value.str.val[i];
return_value->value.str.val[i] = return_value->value.str.val[len-1-i];
return_value->value.str.val[len-1-i]=c;
}
}
/* }}} */
static void php_similar_str(const char *txt1, int len1, const char *txt2,
int len2, int *pos1, int *pos2, int *max)
{
char *p, *q;
char *end1 = (char *) txt1 + len1;
char *end2 = (char *) txt2 + len2;
int l;
*max = 0;
for (p = (char *) txt1; p < end1; p++) {
for (q = (char *) txt2; q < end2; q++) {
for (l = 0; (p + l < end1) && (q + l < end2) && (p[l] == q[l]);
l++);
if (l > *max) {
*max = l;
*pos1 = p - txt1;
*pos2 = q - txt2;
}
}
}
}
static int php_similar_char(const char *txt1, int len1,
const char *txt2, int len2)
{
int sum;
int pos1, pos2, max;
php_similar_str(txt1, len1, txt2, len2, &pos1, &pos2, &max);
if ((sum = max)) {
if (pos1 && pos2)
sum += php_similar_char(txt1, pos1, txt2, pos2);
if ((pos1 + max < len1) && (pos2 + max < len2))
sum += php_similar_char(txt1 + pos1 + max, len1 - pos1 - max,
txt2 + pos2 + max, len2 - pos2 - max);
}
return sum;
}
/* {{{ proto int similar_text(string str1, string str2 [, double percent])
Calculates the similarity between two strings */
PHP_FUNCTION(similar_text)
{
zval **t1, **t2, **percent;
int ac = ZEND_NUM_ARGS();
int sim;
if (ac < 2 || ac > 3 ||
zend_get_parameters_ex(ac, &t1, &t2, &percent) == FAILURE) {
WRONG_PARAM_COUNT;
}
convert_to_string_ex(t1);
convert_to_string_ex(t2);
if (ac > 2) {
convert_to_double_ex(percent);
}
if (((*t1)->value.str.len + (*t2)->value.str.len) == 0) {
if(ac > 2) {
(*percent)->value.dval = 0;
}
RETURN_LONG(0);
}
sim = php_similar_char((*t1)->value.str.val, (*t1)->value.str.len,
(*t2)->value.str.val, (*t2)->value.str.len);
if (ac > 2) {
(*percent)->value.dval = sim * 200.0 / ((*t1)->value.str.len + (*t2)->value.str.len);
}
RETURN_LONG(sim);
}
/* }}} */
/* be careful, this edits the string in-place */
PHPAPI void php_stripslashes(char *str, int *len)
{
char *s, *t;
int l;
char escape_char='\\';
PLS_FETCH();
if (PG(magic_quotes_sybase)) {
escape_char='\'';
}
if (len != NULL) {
l = *len;
} else {
l = strlen(str);
}
s = str;
t = str;
while (l > 0) {
if (*t == escape_char) {
t++; /* skip the slash */
if (len != NULL)
(*len)--;
l--;
if (l > 0) {
if(*t=='0') {
*s++='\0';
t++;
} else {
*s++ = *t++; /* preserve the next character */
}
l--;
}
} else {
if (s != t)
*s++ = *t++;
else {
s++;
t++;
}
l--;
}
}
if (s != t) {
*s = '\0';
}
}
/* {{{ proto string addcslashes(string str, string charlist)
Escape all chars mentioned in charlist with backslash. It creates octal representations if asked to backslash characters with 8th bit set or with ASCII<32 (except '\n', '\r', '\t' etc...) */
PHP_FUNCTION(addcslashes)
{
zval **str, **what;
if (ZEND_NUM_ARGS() != 2 || zend_get_parameters_ex(2, &str, &what) == FAILURE) {
WRONG_PARAM_COUNT;
}
convert_to_string_ex(str);
convert_to_string_ex(what);
if(Z_STRLEN_PP(str) == 0) {
RETURN_EMPTY_STRING();
}
if(Z_STRLEN_PP(what) == 0) {
RETURN_STRINGL(Z_STRVAL_PP(str),Z_STRLEN_PP(str),1);
}
return_value->value.str.val = php_addcslashes((*str)->value.str.val,(*str)->value.str.len,&return_value->value.str.len,0,(*what)->value.str.val,(*what)->value.str.len);
return_value->type = IS_STRING;
}
/* }}} */
/* {{{ proto string addslashes(string str)
Escape single quote, double quotes and backslash characters in a string with backslashes */
PHP_FUNCTION(addslashes)
{
zval **str;
if (ZEND_NUM_ARGS() != 1 || zend_get_parameters_ex(1, &str) == FAILURE) {
WRONG_PARAM_COUNT;
}
convert_to_string_ex(str);
if(Z_STRLEN_PP(str) == 0) {
RETURN_EMPTY_STRING();
}
return_value->value.str.val = php_addslashes((*str)->value.str.val,(*str)->value.str.len,&return_value->value.str.len,0);
return_value->type = IS_STRING;
}
/* }}} */
/* {{{ proto string stripcslashes(string str)
Strip backslashes from a string. Uses C-style conventions */
PHP_FUNCTION(stripcslashes)
{
zval **str;
if (ZEND_NUM_ARGS() != 1 || zend_get_parameters_ex(1, &str) == FAILURE) {
WRONG_PARAM_COUNT;
}
convert_to_string_ex(str);
*return_value = **str;
zval_copy_ctor(return_value);
php_stripcslashes(return_value->value.str.val,&return_value->value.str.len);
}
/* }}} */
/* {{{ proto string stripslashes(string str)
Strip backslashes from a string */
PHP_FUNCTION(stripslashes)
{
zval **str;
if (ZEND_NUM_ARGS() != 1 || zend_get_parameters_ex(1, &str) == FAILURE) {
WRONG_PARAM_COUNT;
}
convert_to_string_ex(str);
*return_value = **str;
zval_copy_ctor(return_value);
php_stripslashes(return_value->value.str.val,&return_value->value.str.len);
}
/* }}} */
#ifndef HAVE_STRERROR
char *php_strerror(int errnum)
{
extern int sys_nerr;
extern char *sys_errlist[];
BLS_FETCH();
if ((unsigned int)errnum < sys_nerr) return(sys_errlist[errnum]);
(void)sprintf(BG(str_ebuf), "Unknown error: %d", errnum);
return(BG(str_ebuf));
}
#endif
PHPAPI void php_stripcslashes(char *str, int *len)
{
char *source,*target,*end;
int nlen = *len, i;
char numtmp[4];
for (source=str,end=str+nlen,target=str; source<end; source++) {
if (*source == '\\' && source+1<end) {
source++;
switch (*source) {
case 'n': *target++='\n'; nlen--; break;
case 'r': *target++='\r'; nlen--; break;
case 'a': *target++='\a'; nlen--; break;
case 't': *target++='\t'; nlen--; break;
case 'v': *target++='\v'; nlen--; break;
case 'b': *target++='\b'; nlen--; break;
case 'f': *target++='\f'; nlen--; break;
case '\\': *target++='\\'; nlen--; break;
case 'x': if (source+1<end && isxdigit((int)(*(source+1)))) {
numtmp[0] = *++source;
if (source+1<end && isxdigit((int)(*(source+1)))) {
numtmp[1] = *++source;
numtmp[2] = '\0';
nlen-=3;
} else {
numtmp[1] = '\0';
nlen-=2;
}
*target++=(char)strtol(numtmp, NULL, 16);
break;
}
/* break is left intentionally */
default: i=0;
while (source<end && *source>='0' && *source<='7' && i<3) {
numtmp[i++] = *source++;
}
if (i) {
numtmp[i]='\0';
*target++=(char)strtol(numtmp, NULL, 8);
nlen-=i;
source--;
} else {
*target++=*source;
nlen--;
}
}
} else {
*target++=*source;
}
}
if(nlen != 0) {
*target='\0';
}
*len = nlen;
}
PHPAPI char *php_addcslashes(char *str, int length, int *new_length, int should_free, char *what, int wlength)
{
char flags[256];
char *new_str = emalloc((length?length:(length=strlen(str)))*4+1);
char *source,*target;
char *end;
char c;
int newlen;
if (!wlength) {
wlength = strlen(what);
}
if (!length) {
length = strlen(str);
}
memset(flags, '\0', sizeof(flags));
for (source=what,end=source+wlength; (c=*source) || source<end; source++) {
if (source+3<end && *(source+1) == '.' && *(source+2) == '.' && (unsigned char)*(source+3)>=(unsigned char)c) {
memset(flags+c, 1, (unsigned char)*(source+3)-(unsigned char)c+1);
source+=3;
} else
flags[(unsigned char)c]=1;
}
for (source=str,end=source+length,target=new_str; (c=*source) || source<end; source++) {
if (flags[(unsigned char)c]) {
if ((unsigned char)c<32 || (unsigned char)c>126) {
*target++ = '\\';
switch (c) {
case '\n': *target++ = 'n'; break;
case '\t': *target++ = 't'; break;
case '\r': *target++ = 'r'; break;
case '\a': *target++ = 'a'; break;
case '\v': *target++ = 'v'; break;
case '\b': *target++ = 'b'; break;
case '\f': *target++ = 'f'; break;
default: target += sprintf(target, "%03o", (unsigned char)c);
}
continue;
}
*target++ = '\\';
}
*target++ = c;
}
*target = 0;
newlen = target-new_str;
if (target-new_str<length*4) {
new_str = erealloc(new_str, newlen+1);
}
if (new_length) {
*new_length = newlen;
}
if (should_free) {
STR_FREE(str);
}
return new_str;
}
PHPAPI char *php_addslashes(char *str, int length, int *new_length, int should_free)
{
/* maximum string length, worst case situation */
char *new_str;
char *source,*target;
char *end;
char c;
PLS_FETCH();
if (!str) {
*new_length = 0;
return str;
}
new_str = (char *) emalloc((length?length:(length=strlen(str)))*2+1);
for (source=str,end=source+length,target=new_str; source<end; source++) {
c = *source;
switch(c) {
case '\0':
*target++ = '\\';
*target++ = '0';
break;
case '\'':
if (PG(magic_quotes_sybase)) {
*target++ = '\'';
*target++ = '\'';
break;
}
/* break is missing *intentionally* */
case '\"':
case '\\':
if (!PG(magic_quotes_sybase)) {
*target++ = '\\';
}
/* break is missing *intentionally* */
default:
*target++ = c;
break;
}
}
*target = 0;
if (new_length) {
*new_length = target - new_str;
}
if (should_free) {
STR_FREE(str);
}
return new_str;
}
#define _HEB_BLOCK_TYPE_ENG 1
#define _HEB_BLOCK_TYPE_HEB 2
#define isheb(c) (((((unsigned char) c)>=224) && (((unsigned char) c)<=250)) ? 1 : 0)
#define _isblank(c) (((((unsigned char) c)==' ' || ((unsigned char) c)=='\t')) ? 1 : 0)
#define _isnewline(c) (((((unsigned char) c)=='\n' || ((unsigned char) c)=='\r')) ? 1 : 0)
PHPAPI void php_char_to_str(char *str,uint len,char from,char *to,int to_len,zval *result)
{
int char_count=0;
char *source,*target,*tmp,*source_end=str+len, *tmp_end=NULL;
for (source=str; source<source_end; source++) {
if (*source==from) {
char_count++;
}
}
result->type = IS_STRING;
if (char_count==0) {
result->value.str.val = estrndup(str,len);
result->value.str.len = len;
return;
}
result->value.str.len = len+char_count*(to_len-1);
result->value.str.val = target = (char *) emalloc(result->value.str.len+1);
for (source=str; source<source_end; source++) {
if (*source==from) {
for (tmp=to,tmp_end=tmp+to_len; tmp<tmp_end; tmp++) {
*target = *tmp;
target++;
}
} else {
*target = *source;
target++;
}
}
*target = 0;
}
PHPAPI char *php_str_to_str(char *haystack, int length,
char *needle, int needle_len, char *str, int str_len, int *_new_length)
{
char *p;
char *r;
char *end = haystack + length;
smart_str result = {0};
for (p = haystack;
(r = php_memnstr(p, needle, needle_len, end));
p = r + needle_len) {
smart_str_appendl(&result, p, r - p);
smart_str_appendl(&result, str, str_len);
}
if (p < end)
smart_str_appendl(&result, p, end - p);
smart_str_0(&result);
if (_new_length) *_new_length = result.len;
return result.c;
}
static void php_str_replace_in_subject(zval *search, zval *replace, zval **subject, zval *result)
{
zval **search_entry,
**replace_entry = NULL,
temp_result;
char *replace_value = NULL;
int replace_len = 0;
/* Make sure we're dealing with strings. */
convert_to_string_ex(subject);
Z_TYPE_P(result) = IS_STRING;
if (Z_STRLEN_PP(subject) == 0) {
ZVAL_STRINGL(result, empty_string, 0, 1);
return;
}
/* If search is an array */
if (Z_TYPE_P(search) == IS_ARRAY) {
/* Duplicate subject string for repeated replacement */
*result = **subject;
zval_copy_ctor(result);
zend_hash_internal_pointer_reset(Z_ARRVAL_P(search));
if (Z_TYPE_P(replace) == IS_ARRAY) {
zend_hash_internal_pointer_reset(Z_ARRVAL_P(replace));
} else {
/* Set replacement value to the passed one */
replace_value = Z_STRVAL_P(replace);
replace_len = Z_STRLEN_P(replace);
}
/* For each entry in the search array, get the entry */
while (zend_hash_get_current_data(Z_ARRVAL_P(search), (void **)&search_entry) == SUCCESS) {
/* Make sure we're dealing with strings. */
convert_to_string_ex(search_entry);
if(Z_STRLEN_PP(search_entry) == 0) {
zend_hash_move_forward(Z_ARRVAL_P(search));
continue;
}
/* If replace is an array. */
if (Z_TYPE_P(replace) == IS_ARRAY) {
/* Get current entry */
if (zend_hash_get_current_data(Z_ARRVAL_P(replace), (void **)&replace_entry) == SUCCESS) {
/* Make sure we're dealing with strings. */
convert_to_string_ex(replace_entry);
/* Set replacement value to the one we got from array */
replace_value = Z_STRVAL_PP(replace_entry);
replace_len = Z_STRLEN_PP(replace_entry);
zend_hash_move_forward(Z_ARRVAL_P(replace));
} else {
/* We've run out of replacement strings, so use an empty one. */
replace_value = empty_string;
replace_len = 0;
}
}
if(Z_STRLEN_PP(search_entry) == 1) {
php_char_to_str(Z_STRVAL_P(result),
Z_STRLEN_P(result),
Z_STRVAL_PP(search_entry)[0],
replace_value,
replace_len,
&temp_result);
} else if (Z_STRLEN_PP(search_entry) > 1) {
Z_STRVAL(temp_result) = php_str_to_str(Z_STRVAL_P(result), Z_STRLEN_P(result),
Z_STRVAL_PP(search_entry), Z_STRLEN_PP(search_entry),
replace_value, replace_len, &Z_STRLEN(temp_result));
}
efree(Z_STRVAL_P(result));
Z_STRVAL_P(result) = Z_STRVAL(temp_result);
Z_STRLEN_P(result) = Z_STRLEN(temp_result);
zend_hash_move_forward(Z_ARRVAL_P(search));
}
} else {
if (Z_STRLEN_P(search) == 1) {
php_char_to_str(Z_STRVAL_PP(subject),
Z_STRLEN_PP(subject),
Z_STRVAL_P(search)[0],
Z_STRVAL_P(replace),
Z_STRLEN_P(replace),
result);
} else if (Z_STRLEN_P(search) > 1) {
Z_STRVAL_P(result) = php_str_to_str(Z_STRVAL_PP(subject), Z_STRLEN_PP(subject),
Z_STRVAL_P(search), Z_STRLEN_P(search),
Z_STRVAL_P(replace), Z_STRLEN_P(replace), &Z_STRLEN_P(result));
} else {
*result = **subject;
zval_copy_ctor(result);
}
}
}
/* {{{ proto mixed str_replace(mixed search, mixed replace, mixed subject)
Replace all occurrences of search in haystack with replace */
PHP_FUNCTION(str_replace)
{
zval **subject, **search, **replace, **subject_entry;
zval *result;
char *string_key;
ulong string_key_len, num_key;
if(ZEND_NUM_ARGS() != 3 ||
zend_get_parameters_ex(3, &search, &replace, &subject) == FAILURE) {
WRONG_PARAM_COUNT;
}
SEPARATE_ZVAL(search);
SEPARATE_ZVAL(replace);
SEPARATE_ZVAL(subject);
/* Make sure we're dealing with strings and do the replacement. */
if (Z_TYPE_PP(search) != IS_ARRAY) {
convert_to_string_ex(search);
convert_to_string_ex(replace);
} else if (Z_TYPE_PP(replace) != IS_ARRAY)
convert_to_string_ex(replace);
/* if subject is an array */
if (Z_TYPE_PP(subject) == IS_ARRAY) {
array_init(return_value);
zend_hash_internal_pointer_reset(Z_ARRVAL_PP(subject));
/* For each subject entry, convert it to string, then perform replacement
and add the result to the return_value array. */
while (zend_hash_get_current_data(Z_ARRVAL_PP(subject), (void **)&subject_entry) == SUCCESS) {
MAKE_STD_ZVAL(result);
php_str_replace_in_subject(*search, *replace, subject_entry, result);
/* Add to return array */
switch(zend_hash_get_current_key_ex(Z_ARRVAL_PP(subject), &string_key,
&string_key_len, &num_key, 0, NULL)) {
case HASH_KEY_IS_STRING:
add_assoc_zval_ex(return_value, string_key, string_key_len, result);
break;
case HASH_KEY_IS_LONG:
add_index_zval(return_value, num_key, result);
break;
}
zend_hash_move_forward(Z_ARRVAL_PP(subject));
}
} else { /* if subject is not an array */
php_str_replace_in_subject(*search, *replace, subject, return_value);
}
}
/* }}} */
/* Converts Logical Hebrew text (Hebrew Windows style) to Visual text
* Cheers/complaints/flames - Zeev Suraski <zeev@php.net>
*/
static void php_hebrev(INTERNAL_FUNCTION_PARAMETERS,int convert_newlines)
{
zval **str,**max_chars_per_line;
char *heb_str,*tmp,*target,*opposite_target,*broken_str;
int block_start, block_end, block_type, block_length, i;
int block_ended;
long max_chars=0;
int begin,end,char_count,orig_begin;
switch(ZEND_NUM_ARGS()) {
case 1:
if (zend_get_parameters_ex(1, &str)==FAILURE) {
RETURN_FALSE;
}
break;
case 2:
if (zend_get_parameters_ex(2, &str, &max_chars_per_line)==FAILURE) {
RETURN_FALSE;
}
convert_to_long_ex(max_chars_per_line);
max_chars = (*max_chars_per_line)->value.lval;
break;
default:
WRONG_PARAM_COUNT;
break;
}
convert_to_string_ex(str);
if ((*str)->value.str.len==0) {
RETURN_FALSE;
}
tmp = (*str)->value.str.val;
block_start=block_end=0;
block_ended=0;
heb_str = (char *) emalloc((*str)->value.str.len+1);
target = heb_str+(*str)->value.str.len;
opposite_target = heb_str;
*target = 0;
target--;
block_length=0;
if (isheb(*tmp)) {
block_type = _HEB_BLOCK_TYPE_HEB;
} else {
block_type = _HEB_BLOCK_TYPE_ENG;
}
do {
if (block_type==_HEB_BLOCK_TYPE_HEB) {
while((isheb((int)*(tmp+1)) || _isblank((int)*(tmp+1)) || ispunct((int)*(tmp+1)) || (int)*(tmp+1)=='\n' ) && block_end<(*str)->value.str.len-1) {
tmp++;
block_end++;
block_length++;
}
for (i=block_start; i<=block_end; i++) {
*target = (*str)->value.str.val[i];
switch (*target) {
case '(':
*target = ')';
break;
case ')':
*target = '(';
break;
default:
break;
}
target--;
}
block_type = _HEB_BLOCK_TYPE_ENG;
} else {
while(!isheb(*(tmp+1)) && (int)*(tmp+1)!='\n' && block_end<(*str)->value.str.len-1) {
tmp++;
block_end++;
block_length++;
}
while ((_isblank((int)*tmp) || ispunct((int)*tmp)) && *tmp!='/' && *tmp!='-' && block_end>block_start) {
tmp--;
block_end--;
}
for (i=block_end; i>=block_start; i--) {
*target = (*str)->value.str.val[i];
target--;
}
block_type = _HEB_BLOCK_TYPE_HEB;
}
block_start=block_end+1;
} while(block_end<(*str)->value.str.len-1);
broken_str = (char *) emalloc((*str)->value.str.len+1);
begin=end=(*str)->value.str.len-1;
target = broken_str;
while (1) {
char_count=0;
while ((!max_chars || char_count<max_chars) && begin>0) {
char_count++;
begin--;
if (begin<=0 || _isnewline(heb_str[begin])) {
while(begin>0 && _isnewline(heb_str[begin-1])) {
begin--;
char_count++;
}
break;
}
}
if (char_count==max_chars) { /* try to avoid breaking words */
int new_char_count=char_count, new_begin=begin;
while (new_char_count>0) {
if (_isblank(heb_str[new_begin]) || _isnewline(heb_str[new_begin])) {
break;
}
new_begin++;
new_char_count--;
}
if (new_char_count>0) {
char_count=new_char_count;
begin=new_begin;
}
}
orig_begin=begin;
if (_isblank(heb_str[begin])) {
heb_str[begin]='\n';
}
while (begin<=end && _isnewline(heb_str[begin])) { /* skip leading newlines */
begin++;
}
for (i=begin; i<=end; i++) { /* copy content */
*target = heb_str[i];
target++;
}
for (i=orig_begin; i<=end && _isnewline(heb_str[i]); i++) {
*target = heb_str[i];
target++;
}
begin=orig_begin;
if (begin<=0) {
*target = 0;
break;
}
begin--;
end=begin;
}
efree(heb_str);
if (convert_newlines) {
php_char_to_str(broken_str,(*str)->value.str.len,'\n',"<br>\n",5,return_value);
efree(broken_str);
} else {
return_value->value.str.val = broken_str;
return_value->value.str.len = (*str)->value.str.len;
return_value->type = IS_STRING;
}
}
/* {{{ proto string hebrev(string str [, int max_chars_per_line])
Convert logical Hebrew text to visual text */
PHP_FUNCTION(hebrev)
{
php_hebrev(INTERNAL_FUNCTION_PARAM_PASSTHRU,0);
}
/* }}} */
/* {{{ proto string hebrevc(string str [, int max_chars_per_line])
Convert logical Hebrew text to visual text with newline conversion */
PHP_FUNCTION(hebrevc)
{
php_hebrev(INTERNAL_FUNCTION_PARAM_PASSTHRU,1);
}
/* }}} */
/* {{{ proto string nl2br(string str)
Converts newlines to HTML line breaks */
PHP_FUNCTION(nl2br)
{
zval **str;
if (ZEND_NUM_ARGS()!=1 || zend_get_parameters_ex(1, &str)==FAILURE) {
WRONG_PARAM_COUNT;
}
convert_to_string_ex(str);
php_char_to_str((*str)->value.str.val,(*str)->value.str.len,'\n',"<br />\n",7,return_value);
}
/* }}} */
/* {{{ proto string strip_tags(string str [, string allowable_tags])
Strips HTML and PHP tags from a string */
PHP_FUNCTION(strip_tags)
{
char *buf;
zval **str, **allow=NULL;
char *allowed_tags=NULL;
int allowed_tags_len=0;
switch(ZEND_NUM_ARGS()) {
case 1:
if(zend_get_parameters_ex(1, &str)==FAILURE) {
RETURN_FALSE;
}
break;
case 2:
if(zend_get_parameters_ex(2, &str, &allow)==FAILURE) {
RETURN_FALSE;
}
convert_to_string_ex(allow);
allowed_tags = (*allow)->value.str.val;
allowed_tags_len = (*allow)->value.str.len;
break;
default:
WRONG_PARAM_COUNT;
break;
}
convert_to_string_ex(str);
buf = estrndup((*str)->value.str.val,(*str)->value.str.len);
php_strip_tags(buf, (*str)->value.str.len, 0, allowed_tags, allowed_tags_len);
RETURN_STRING(buf, 0);
}
/* }}} */
/* {{{ proto string setlocale(mixed category, string locale)
Set locale information */
PHP_FUNCTION(setlocale)
{
zval **pcategory, **plocale;
zval *category, *locale;
int cat;
char *loc, *retval;
BLS_FETCH();
if (ZEND_NUM_ARGS()!=2 || zend_get_parameters_ex(2, &pcategory, &plocale)==FAILURE)
WRONG_PARAM_COUNT;
#ifdef HAVE_SETLOCALE
convert_to_string_ex(plocale);
locale = *plocale;
if (Z_TYPE_PP(pcategory) == IS_LONG) {
convert_to_long_ex(pcategory);
cat = Z_LVAL_PP(pcategory);
} else { /* FIXME: The following behaviour should be removed. */
php_error(E_NOTICE,"Passing locale category name as string is deprecated. Use the LC_* -constants instead.");
convert_to_string_ex(pcategory);
category = *pcategory;
if (!strcasecmp ("LC_ALL", category->value.str.val))
cat = LC_ALL;
else if (!strcasecmp ("LC_COLLATE", category->value.str.val))
cat = LC_COLLATE;
else if (!strcasecmp ("LC_CTYPE", category->value.str.val))
cat = LC_CTYPE;
#ifdef LC_MESSAGES
else if (!strcasecmp ("LC_MESSAGES", category->value.str.val))
cat = LC_MESSAGES;
#endif
else if (!strcasecmp ("LC_MONETARY", category->value.str.val))
cat = LC_MONETARY;
else if (!strcasecmp ("LC_NUMERIC", category->value.str.val))
cat = LC_NUMERIC;
else if (!strcasecmp ("LC_TIME", category->value.str.val))
cat = LC_TIME;
else {
php_error(E_WARNING,"Invalid locale category name %s, must be one of LC_ALL, LC_COLLATE, LC_CTYPE, LC_MONETARY, LC_NUMERIC or LC_TIME", category->value.str.val);
RETURN_FALSE;
}
}
if (!strcmp ("0", locale->value.str.val)) {
loc = NULL;
} else {
loc = locale->value.str.val;
}
retval = setlocale (cat, loc);
if (retval) {
/* Remember if locale was changed */
if (loc) {
STR_FREE(BG(locale_string));
BG(locale_string) = estrdup(retval);
}
RETVAL_STRING(retval,1);
return;
}
#endif
RETURN_FALSE;
}
/* }}} */
/* {{{ proto void parse_str(string encoded_string, [array result])
Parses GET/POST/COOKIE data and sets global variables */
PHP_FUNCTION(parse_str)
{
zval **arg;
zval **arrayArg;
zval *sarg;
char *res = NULL;
int argCount;
int old_rg;
PLS_FETCH();
SLS_FETCH();
argCount = ARG_COUNT(ht);
if(argCount < 1 || argCount > 2 || zend_get_parameters_ex(argCount, &arg, &arrayArg) == FAILURE) {
WRONG_PARAM_COUNT;
}
convert_to_string_ex(arg);
sarg = *arg;
if (sarg->value.str.val && *sarg->value.str.val) {
res = estrndup(sarg->value.str.val, sarg->value.str.len);
}
old_rg = PG(register_globals);
if(argCount == 1) {
PG(register_globals) = 1;
php_treat_data(PARSE_STRING, res, NULL ELS_CC PLS_CC SLS_CC);
} else {
PG(register_globals) = 0;
/* Clear out the array that was passed in. */
zval_dtor(*arrayArg);
array_init(*arrayArg);
php_treat_data(PARSE_STRING, res, *arrayArg ELS_CC PLS_CC SLS_CC);
}
PG(register_globals) = old_rg;
}
/* }}} */
#define PHP_TAG_BUF_SIZE 1023
/* Check if tag is in a set of tags
*
* states:
*
* 0 start tag
* 1 first non-whitespace char seen
*/
int php_tag_find(char *tag, int len, char *set) {
char c, *n, *t;
int state=0, done=0;
char *norm = emalloc(len+1);
n = norm;
t = tag;
c = tolower(*t);
/*
normalize the tag removing leading and trailing whitespace
and turn any <a whatever...> into just <a> and any </tag>
into <tag>
*/
if (!len) {
return 0;
}
while(!done) {
switch(c) {
case '<':
*(n++) = c;
break;
case '>':
done =1;
break;
default:
if(!isspace((int)c)) {
if(state==0) {
state=1;
if(c!='/') *(n++) = c;
} else {
*(n++) = c;
}
} else {
if(state==1) done=1;
}
break;
}
c = tolower(*(++t));
}
*(n++) = '>';
*n = '\0';
if(strstr(set,norm)) {
done=1;
} else {
done=0;
}
efree(norm);
return done;
}
/* A simple little state-machine to strip out html and php tags
State 0 is the output state, State 1 means we are inside a
normal html tag and state 2 means we are inside a php tag.
The state variable is passed in to allow a function like fgetss
to maintain state across calls to the function.
lc holds the last significant character read and br is a bracket
counter.
When an allow string is passed in we keep track of the string
in state 1 and when the tag is closed check it against the
allow string to see if we should allow it.
*/
PHPAPI void php_strip_tags(char *rbuf, int len, int state, char *allow, int allow_len)
{
char *tbuf, *buf, *p, *tp, *rp, c, lc;
int br, i=0;
buf = estrndup(rbuf,len);
c = *buf;
lc = '\0';
p = buf;
rp = rbuf;
br = 0;
if(allow) {
php_strtolower(allow, allow_len);
tbuf = emalloc(PHP_TAG_BUF_SIZE+1);
tp = tbuf;
} else {
tbuf = tp = NULL;
}
while(i<len) {
switch (c) {
case '<':
if (state == 0) {
lc = '<';
state = 1;
if(allow) {
*(tp++) = '<';
}
}
break;
case '(':
if (state == 2) {
if (lc != '\"') {
lc = '(';
br++;
}
} else if (state == 0) {
*(rp++) = c;
}
break;
case ')':
if (state == 2) {
if (lc != '\"') {
lc = ')';
br--;
}
} else if (state == 0) {
*(rp++) = c;
}
break;
case '>':
if (state == 1) {
lc = '>';
state = 0;
if(allow) {
*(tp++) = '>';
*tp='\0';
if(php_tag_find(tbuf, tp-tbuf, allow)) {
memcpy(rp,tbuf,tp-tbuf);
rp += tp-tbuf;
}
tp = tbuf;
}
} else if (state == 2) {
if (!br && lc != '\"' && *(p-1)=='?') {
state = 0;
tp = tbuf;
}
} else {
*(rp++) = c;
}
break;
case '\"':
if (state == 2) {
if (lc == '\"') {
lc = '\0';
} else if (lc != '\\') {
lc = '\"';
}
} else if (state == 0) {
*(rp++) = c;
} else if (allow && state == 1) {
*(tp++) = c;
}
break;
case '?':
if (state==1 && *(p-1)=='<') {
br=0;
state=2;
break;
}
/* fall-through */
default:
if (state == 0) {
*(rp++) = c;
} else if(allow && state == 1) {
*(tp++) = c;
if( (tp-tbuf)>=PHP_TAG_BUF_SIZE ) { /* no buffer overflows */
tp = tbuf;
}
}
break;
}
c = *(++p);
i++;
}
*rp = '\0';
efree(buf);
if(allow) efree(tbuf);
}
/* {{{ proto string str_repeat(string input, int mult)
Returns the input string repeat mult times */
PHP_FUNCTION(str_repeat)
{
zval **input_str; /* Input string */
zval **mult; /* Multiplier */
char *result; /* Resulting string */
int result_len; /* Length of the resulting string */
int i;
if (ZEND_NUM_ARGS() != 2 || zend_get_parameters_ex(2, &input_str, &mult) == FAILURE) {
WRONG_PARAM_COUNT;
}
/* Make sure we're dealing with proper types */
convert_to_string_ex(input_str);
convert_to_long_ex(mult);
if ((*mult)->value.lval < 0) {
php_error(E_WARNING, "Second argument to %s() has to be greater than or equal to 0",
get_active_function_name());
return;
}
/* Don't waste our time if it's empty */
if ((*input_str)->value.str.len == 0)
RETURN_STRINGL(empty_string, 0, 1);
/* ... or if the multiplier is zero */
if ((*mult)->value.lval == 0)
RETURN_STRINGL(empty_string, 0, 1);
/* Initialize the result string */
result_len = (*input_str)->value.str.len * (*mult)->value.lval;
result = (char *)emalloc(result_len + 1);
/* Copy the input string into the result as many times as necessary */
for (i=0; i<(*mult)->value.lval; i++) {
memcpy(result + (*input_str)->value.str.len * i,
(*input_str)->value.str.val,
(*input_str)->value.str.len);
}
result[result_len] = '\0';
RETURN_STRINGL(result, result_len, 0);
}
/* }}} */
/* {{{ proto mixed count_chars(string input [, int mode])
Returns info about what characters are used in input */
PHP_FUNCTION(count_chars)
{
zval **input, **mode;
int chars[256];
int ac=ZEND_NUM_ARGS();
int mymode=0;
unsigned char *buf;
int len, inx;
char retstr[256];
int retlen=0;
if (ac < 1 || ac > 2 || zend_get_parameters_ex(ac, &input, &mode) == FAILURE) {
WRONG_PARAM_COUNT;
}
convert_to_string_ex(input);
if (ac == 2) {
convert_to_long_ex(mode);
mymode = (*mode)->value.lval;
if (mymode < 0 || mymode > 4) {
php_error(E_WARNING, "unknown mode");
RETURN_FALSE;
}
}
len = (*input)->value.str.len;
buf = (unsigned char *) (*input)->value.str.val;
memset((void*) chars,0,sizeof(chars));
while (len > 0) {
chars[*buf]++;
buf++;
len--;
}
if (mymode < 3) {
array_init(return_value);
}
for (inx=0; inx < 256; inx++) {
switch (mymode) {
case 0:
add_index_long(return_value,inx,chars[inx]);
break;
case 1:
if (chars[inx] != 0) {
add_index_long(return_value,inx,chars[inx]);
}
break;
case 2:
if (chars[inx] == 0) {
add_index_long(return_value,inx,chars[inx]);
}
break;
case 3:
if (chars[inx] != 0) {
retstr[retlen++] = inx;
}
break;
case 4:
if (chars[inx] == 0) {
retstr[retlen++] = inx;
}
break;
}
}
if (mymode >= 3 && mymode <= 4) {
RETURN_STRINGL(retstr,retlen,1);
}
}
/* }}} */
static void php_strnatcmp(INTERNAL_FUNCTION_PARAMETERS, int fold_case)
{
zval **s1, **s2;
if (ZEND_NUM_ARGS()!=2 || zend_get_parameters_ex(2, &s1, &s2) == FAILURE) {
WRONG_PARAM_COUNT;
}
convert_to_string_ex(s1);
convert_to_string_ex(s2);
RETURN_LONG(strnatcmp_ex((*s1)->value.str.val, (*s1)->value.str.len,
(*s2)->value.str.val, (*s2)->value.str.len,
fold_case));
}
/* {{{ proto int strnatcmp(string s1, string s2)
Returns the result of string comparison using 'natural' algorithm */
PHP_FUNCTION(strnatcmp)
{
php_strnatcmp(INTERNAL_FUNCTION_PARAM_PASSTHRU, 0);
}
/* }}} */
/* {{{ proto array localeconv( void )
Returns all the information stored in the lconv struct defined
in locale.h based on the currently selected locale */
PHP_FUNCTION(localeconv)
{
zval *grouping, *mon_grouping;
int len, i;
MAKE_STD_ZVAL(grouping);
MAKE_STD_ZVAL(mon_grouping);
/* We don't need no stinkin' parameters... */
if (ZEND_NUM_ARGS() > 0) {
WRONG_PARAM_COUNT;
}
if (array_init(return_value) == FAILURE) {
RETURN_FALSE;
}
if (array_init(grouping) == FAILURE || array_init(mon_grouping) == FAILURE) {
RETURN_FALSE;
}
#ifdef HAVE_LOCALECONV
{
struct lconv currlocdata;
localeconv_r( &currlocdata );
/* Grab the grouping data out of the array */
len = strlen(currlocdata.grouping);
for (i=0;i<len;i++) {
add_index_long(grouping, i, currlocdata.grouping[i]);
}
/* Grab the monetary grouping data out of the array */
len = strlen(currlocdata.mon_grouping);
for (i=0;i<len;i++) {
add_index_long(mon_grouping, i, currlocdata.mon_grouping[i]);
}
add_assoc_string(return_value, "decimal_point", currlocdata.decimal_point, 1);
add_assoc_string(return_value, "thousands_sep", currlocdata.thousands_sep, 1);
add_assoc_string(return_value, "int_curr_symbol", currlocdata.int_curr_symbol, 1);
add_assoc_string(return_value, "currency_symbol", currlocdata.currency_symbol, 1);
add_assoc_string(return_value, "mon_decimal_point", currlocdata.mon_decimal_point, 1);
add_assoc_string(return_value, "mon_thousands_sep", currlocdata.mon_thousands_sep, 1);
add_assoc_string(return_value, "positive_sign", currlocdata.positive_sign, 1);
add_assoc_string(return_value, "negative_sign", currlocdata.negative_sign, 1);
add_assoc_long( return_value, "int_frac_digits", currlocdata.int_frac_digits );
add_assoc_long( return_value, "frac_digits", currlocdata.frac_digits );
add_assoc_long( return_value, "p_cs_precedes", currlocdata.p_cs_precedes );
add_assoc_long( return_value, "p_sep_by_space", currlocdata.p_sep_by_space );
add_assoc_long( return_value, "n_cs_precedes", currlocdata.n_cs_precedes );
add_assoc_long( return_value, "n_sep_by_space", currlocdata.n_sep_by_space );
add_assoc_long( return_value, "p_sign_posn", currlocdata.p_sign_posn );
add_assoc_long( return_value, "n_sign_posn", currlocdata.n_sign_posn );
}
#else
/* Ok, it doesn't look like we have locale info floating around, so I guess it
wouldn't hurt to just go ahead and return the POSIX locale information? */
add_index_long(grouping, 0, -1);
add_index_long(mon_grouping, 0, -1);
add_assoc_string(return_value, "decimal_point", "\x2E", 1);
add_assoc_string(return_value, "thousands_sep", "", 1);
add_assoc_string(return_value, "int_curr_symbol", "", 1);
add_assoc_string(return_value, "currency_symbol", "", 1);
add_assoc_string(return_value, "mon_decimal_point", "\x2E", 1);
add_assoc_string(return_value, "mon_thousands_sep", "", 1);
add_assoc_string(return_value, "positive_sign", "", 1);
add_assoc_string(return_value, "negative_sign", "", 1);
add_assoc_long( return_value, "int_frac_digits", CHAR_MAX );
add_assoc_long( return_value, "frac_digits", CHAR_MAX );
add_assoc_long( return_value, "p_cs_precedes", CHAR_MAX );
add_assoc_long( return_value, "p_sep_by_space", CHAR_MAX );
add_assoc_long( return_value, "n_cs_precedes", CHAR_MAX );
add_assoc_long( return_value, "n_sep_by_space", CHAR_MAX );
add_assoc_long( return_value, "p_sign_posn", CHAR_MAX );
add_assoc_long( return_value, "n_sign_posn", CHAR_MAX );
#endif
zend_hash_update(return_value->value.ht, "grouping", 9, &grouping, sizeof(zval *), NULL);
zend_hash_update(return_value->value.ht, "mon_grouping", 13, &mon_grouping, sizeof(zval *), NULL);
}
/* {{{ proto int strnatcasecmp(string s1, string s2)
Returns the result of case-insensitive string comparison using 'natural' algorithm */
PHP_FUNCTION(strnatcasecmp)
{
php_strnatcmp(INTERNAL_FUNCTION_PARAM_PASSTHRU, 1);
}
/* }}} */
/* {{{ proto int substr_count(string haystack, string needle)
Returns the number of times a substring occurs in the string */
PHP_FUNCTION(substr_count)
{
zval **haystack, **needle;
int i, length, count = 0;
char *p, *endp, cmp;
if (ZEND_NUM_ARGS() != 2 || zend_get_parameters_ex(2, &haystack, &needle) == FAILURE) {
WRONG_PARAM_COUNT;
}
convert_to_string_ex(haystack);
convert_to_string_ex(needle);
if ((*needle)->value.str.len == 0) {
php_error(E_WARNING, "Empty substring");
RETURN_FALSE;
} else if ((*needle)->value.str.len == 1) {
/* Special optimized case to avoid calls to php_memnstr(). */
for (i = 0, p = (*haystack)->value.str.val,
length = (*haystack)->value.str.len, cmp = (*needle)->value.str.val[0];
i < length; i++) {
if (p[i] == cmp) {
count++;
}
}
} else {
p = (*haystack)->value.str.val;
endp = p + (*haystack)->value.str.len;
while (p <= endp) {
if( (p = php_memnstr(p, (*needle)->value.str.val, (*needle)->value.str.len, endp)) != NULL ) {
p += (*needle)->value.str.len;
count++;
} else {
break;
}
}
}
RETURN_LONG(count);
}
/* }}} */
/* {{{ proto string str_pad(string input, int pad_length [, string pad_string [, int pad_type]])
Returns input string padded on the left or right to specified length with pad_string */
PHP_FUNCTION(str_pad)
{
/* Input arguments */
zval **input, /* Input string */
**pad_length, /* Length to pad to */
**pad_string, /* Padding string */
**pad_type; /* Padding type (left/right/both) */
/* Helper variables */
int num_pad_chars; /* Number of padding characters (total - input size) */
char *result = NULL; /* Resulting string */
int result_len = 0; /* Length of the resulting string */
char *pad_str_val = " "; /* Pointer to padding string */
int pad_str_len = 1; /* Length of the padding string */
int pad_type_val = STR_PAD_RIGHT; /* The padding type value */
int i, left_pad=0, right_pad=0;
if (ZEND_NUM_ARGS() < 2 || ZEND_NUM_ARGS() > 4 ||
zend_get_parameters_ex(ZEND_NUM_ARGS(), &input, &pad_length, &pad_string, &pad_type) == FAILURE) {
WRONG_PARAM_COUNT;
}
/* Perform initial conversion to expected data types. */
convert_to_string_ex(input);
convert_to_long_ex(pad_length);
num_pad_chars = Z_LVAL_PP(pad_length) - Z_STRLEN_PP(input);
/* If resulting string turns out to be shorter than input string,
we simply copy the input and return. */
if (num_pad_chars < 0) {
*return_value = **input;
zval_copy_ctor(return_value);
return;
}
/* Setup the padding string values if specified. */
if (ZEND_NUM_ARGS() > 2) {
convert_to_string_ex(pad_string);
if (Z_STRLEN_PP(pad_string) == 0) {
php_error(E_WARNING, "Padding string cannot be empty in %s()",
get_active_function_name());
return;
}
pad_str_val = Z_STRVAL_PP(pad_string);
pad_str_len = Z_STRLEN_PP(pad_string);
if (ZEND_NUM_ARGS() > 3) {
convert_to_long_ex(pad_type);
pad_type_val = Z_LVAL_PP(pad_type);
if (pad_type_val < STR_PAD_LEFT || pad_type_val > STR_PAD_BOTH) {
php_error(E_WARNING, "Padding type has to be STR_PAD_LEFT, STR_PAD_RIGHT, or STR_PAD_BOTH in %s()", get_active_function_name());
return;
}
}
}
result = (char *)emalloc(Z_STRLEN_PP(input) + num_pad_chars + 1);
/* We need to figure out the left/right padding lengths. */
switch (pad_type_val) {
case STR_PAD_RIGHT:
left_pad = 0;
right_pad = num_pad_chars;
break;
case STR_PAD_LEFT:
left_pad = num_pad_chars;
right_pad = 0;
break;
case STR_PAD_BOTH:
left_pad = num_pad_chars / 2;
right_pad = num_pad_chars - left_pad;
break;
}
/* First we pad on the left. */
for (i = 0; i < left_pad; i++)
result[result_len++] = pad_str_val[i % pad_str_len];
/* Then we copy the input string. */
memcpy(result + result_len, Z_STRVAL_PP(input), Z_STRLEN_PP(input));
result_len += Z_STRLEN_PP(input);
/* Finally, we pad on the right. */
for (i = 0; i < right_pad; i++)
result[result_len++] = pad_str_val[i % pad_str_len];
result[result_len] = '\0';
RETURN_STRINGL(result, result_len, 0);
}
/* }}} */
/* {{{ proto mixed sscanf(string str, string format [, string ...])
Implements an ANSI C compatible sscanf */
PHP_FUNCTION(sscanf)
{
zval **format;
zval **literal;
int result;
zval ***args;
int argCount;
argCount = ZEND_NUM_ARGS();
if (argCount < 2) {
WRONG_PARAM_COUNT;
}
args = (zval ***)emalloc(argCount * sizeof(zval **));
if (!args || (zend_get_parameters_array_ex(argCount,args) == FAILURE)) {
efree( args );
WRONG_PARAM_COUNT;
}
literal = args[0];
format = args[1];
convert_to_string_ex( format );
convert_to_string_ex( literal );
result = php_sscanf_internal( (*literal)->value.str.val,
(*format)->value.str.val,
argCount,args,
2,&return_value);
efree(args);
if (SCAN_ERROR_WRONG_PARAM_COUNT == result) {
WRONG_PARAM_COUNT;
}
}
/* }}} */
/*
* Local variables:
* tab-width: 4
* c-basic-offset: 4
* End:
*/
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