diff options
Diffstat (limited to 'ext/standard/string.c')
| -rw-r--r-- | ext/standard/string.c | 2326 |
1 files changed, 0 insertions, 2326 deletions
diff --git a/ext/standard/string.c b/ext/standard/string.c deleted file mode 100644 index 47896b913a..0000000000 --- a/ext/standard/string.c +++ /dev/null @@ -1,2326 +0,0 @@ -/* - +----------------------------------------------------------------------+ - | PHP version 4.0 | - +----------------------------------------------------------------------+ - | Copyright (c) 1997, 1998, 1999 The PHP Group | - +----------------------------------------------------------------------+ - | This source file is subject to version 2.0 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_0.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@lerdorf.on.ca> | - | Stig Sæther Bakken <ssb@fast.no> | - | Zeev Suraski <zeev@zend.com> | - +----------------------------------------------------------------------+ - */ - -/* $Id$ */ - -/* Synced with php3 revision 1.193 1999-06-16 [ssb] */ - -#include <stdio.h> -#include "php.h" -#include "reg.h" -#include "post.h" -#include "php_string.h" -#ifdef HAVE_LOCALE_H -# include <locale.h> -#endif -#include "zend_execute.h" -#include "php_globals.h" - -int php_tag_find(char *tag, int len, char *set); - -/* this is read-only, so it's ok */ -static char hexconvtab[] = "0123456789abcdef"; - -static char *php_bin2hex(const unsigned char *old, const size_t oldlen, size_t *newlen) -{ - unsigned char *new = NULL; - size_t i, j; - - new = (char *) emalloc(oldlen * 2 * sizeof(char)); - if(!new) { - return new; - } - - for(i = j = 0; i < oldlen; i++) { - new[j++] = hexconvtab[old[i] >> 4]; - new[j++] = hexconvtab[old[i] & 15]; - } - - if(newlen) *newlen = oldlen * 2 * sizeof(char); - - return new; -} - -/* proto bin2hex(string data) - converts the binary representation of data to hex */ -PHP_FUNCTION(bin2hex) -{ - pval **data; - char *new; - size_t newlen; - - if(ARG_COUNT(ht) != 1 || getParametersEx(1, &data) == FAILURE) { - WRONG_PARAM_COUNT; - } - - convert_to_string_ex(data); - - new = php_bin2hex((*data)->value.str.val, (*data)->value.str.len, &newlen); - - if(!new) { - RETURN_FALSE; - } - - RETURN_STRINGL(new, newlen, 0); -} - - -/* {{{ proto int strspn(string str, string mask) - Find length of initial segment consisting entirely of characters found in mask */ -PHP_FUNCTION(strspn) -{ - pval **s1,**s2; - - if (ARG_COUNT(ht)!=2 || getParametersEx(2, &s1, &s2) == FAILURE) { - WRONG_PARAM_COUNT; - } - convert_to_string_ex(s1); - convert_to_string_ex(s2); - RETURN_LONG(strspn((*s1)->value.str.val,(*s2)->value.str.val)); -} -/* }}} */ - -/* {{{ proto int strcspn(string str, string mask) - Find length of initial segment consisting entirely of characters not found in mask */ -PHP_FUNCTION(strcspn) -{ - pval **s1,**s2; - - if (ARG_COUNT(ht)!=2 || getParametersEx(2, &s1, &s2) == FAILURE) { - WRONG_PARAM_COUNT; - } - convert_to_string_ex(s1); - convert_to_string_ex(s2); - RETURN_LONG(strcspn((*s1)->value.str.val,(*s2)->value.str.val)); -} -/* }}} */ - -PHPAPI void php_trim(pval *str, pval * 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') { - 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') { - 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) -{ - pval **str; - - if (ARG_COUNT(ht) != 1 || getParametersEx(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) -{ - pval **str; - - if (ARG_COUNT(ht) != 1 || getParametersEx(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) -{ - pval **str; - - if (ARG_COUNT(ht) != 1 || getParametersEx(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; -} -/* }}} */ - -PHPAPI void php_explode(pval *delim, pval *str, pval *return_value) -{ - char *p1, *p2, *endp; - int i = 0; - - 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_index_stringl(return_value, i++, p1, str->value.str.len, 1); - } else { - do { - add_index_stringl(return_value, i++, 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); - - if (p1 <= endp) { - add_index_stringl(return_value, i++, p1, endp-p1, 1); - } - } -} - -/* {{{ proto array explode(string separator, string str) - Split a string on string separator and return array of components */ -PHP_FUNCTION(explode) -{ - pval **str, **delim; - - if (ARG_COUNT(ht) != 2 || getParametersEx(2, &delim, &str) == FAILURE) { - 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; - } - - php_explode(*delim, *str, return_value); -} -/* }}} */ - - -/* {{{ proto string join(array src, string glue) - An alias for implode */ -/* }}} */ -PHPAPI void php_implode(pval *delim, pval *arr, pval *return_value) -{ - pval **tmp; - int len = 0, count = 0, target = 0; - - /* convert everything to strings, and calculate length */ - zend_hash_internal_pointer_reset(arr->value.ht); - while (zend_hash_get_current_data(arr->value.ht, (void **) &tmp) == SUCCESS) { - convert_to_string_ex(tmp); - len += (*tmp)->value.str.len; - if (count>0) { - len += delim->value.str.len; - } - count++; - zend_hash_move_forward(arr->value.ht); - } - - /* 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(arr->value.ht); - while (zend_hash_get_current_data(arr->value.ht, (void **) &tmp) == 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(arr->value.ht); - } - 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) -{ - pval **arg1, **arg2, *delim, *arr; - - if (ARG_COUNT(ht) != 2 || getParametersEx(2, &arg1, &arg2) == FAILURE) { - WRONG_PARAM_COUNT; - } - - if ((*arg1)->type == IS_ARRAY && (*arg2)->type == IS_STRING) { - SEPARATE_ZVAL(arg1); - arr = *arg1; - 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) -{ - pval **str, **tok; - char *token = NULL, *tokp=NULL; - char *first = NULL; - int argc; - BLS_FETCH(); - - argc = ARG_COUNT(ht); - - if ((argc == 1 && getParametersEx(1, &tok) == FAILURE) || - (argc == 2 && getParametersEx(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; - int 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) -{ - pval **arg; - - if (ARG_COUNT(ht) != 1 || getParametersEx(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; - int 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) -{ - pval **str; - char *ret; - - if (ARG_COUNT(ht) != 1 || getParametersEx(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); -} -/* }}} */ - -/* {{{ proto string basename(string path) - Return the filename component of the path */ -PHP_FUNCTION(basename) -{ - pval **str; - char *ret, *c; - - if (ARG_COUNT(ht) != 1 || getParametersEx(1, &str)) { - WRONG_PARAM_COUNT; - } - convert_to_string_ex(str); - ret = estrdup((*str)->value.str.val); - c = ret + (*str)->value.str.len -1; - while (*c == '/' -#ifdef MSVC5 - || *c == '\\' -#endif - ) - c--; - *(c + 1) = '\0'; - if ((c = strrchr(ret, '/')) -#ifdef MSVC5 - || (c = strrchr(ret, '\\')) -#endif - ) { - RETVAL_STRING(c + 1,1); - } else { - RETVAL_STRING((*str)->value.str.val,1); - } - efree(ret); -} -/* }}} */ - -PHPAPI void php_dirname(char *str, int len) { - register char *c; - - c = str + len - 1; - while (*c == '/' -#ifdef MSVC5 - || *c == '\\' -#endif - ) - c--; /* strip trailing slashes */ - *(c + 1) = '\0'; - if ((c = strrchr(str, '/')) -#ifdef MSVC5 - || (c = strrchr(str, '\\')) -#endif - ) - *c='\0'; -} - -/* {{{ proto string dirname(string path) - Return the directory name component of the path */ -PHP_FUNCTION(dirname) -{ - pval **str; - char *ret; - - if (ARG_COUNT(ht) != 1 || getParametersEx(1, &str)) { - WRONG_PARAM_COUNT; - } - convert_to_string_ex(str); - ret = estrdup((*str)->value.str.val); - php_dirname(ret,(*str)->value.str.len); - RETVAL_STRING(ret,1); - efree(ret); -} -/* }}} */ - - -/* 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); -} - -/* {{{ 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; - char needle_char[2]; - - if (ARG_COUNT(ht) != 2 || getParametersEx(2, &haystack, &needle) == - FAILURE) { - WRONG_PARAM_COUNT; - } - convert_to_string_ex(haystack); - - if ((*needle)->type == IS_STRING) { - if ((*needle)->value.str.len==0) { - php_error(E_WARNING,"Empty delimiter"); - 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) { - RETVAL_STRING(found, 1); - } else { - RETVAL_FALSE; - } -} -/* }}} */ - -/* {{{ 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 (ARG_COUNT(ht) != 2 || getParametersEx(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) -{ - pval **haystack, **needle, **OFFSET; - int offset = 0; - char *found = NULL; - char *endp; - char *startp; - - switch(ARG_COUNT(ht)) { - case 2: - if (getParametersEx(2, &haystack, &needle) == FAILURE) { - WRONG_PARAM_COUNT; - } - break; - case 3: - if (getParametersEx(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 the last occurrence of a character in a string within another */ -PHP_FUNCTION(strrpos) -{ - pval **haystack, **needle; - char *found = NULL; - - if (ARG_COUNT(ht) != 2 || getParametersEx(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) -{ - pval **haystack, **needle; - char *found = NULL; - - if (ARG_COUNT(ht) != 2 || getParametersEx(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) -{ - pval **p_str, **p_chunklen, **p_ending; - int argc; - char *result; - char *end = "\r\n"; - int endlen = 2; - int chunklen = 76; - int result_len; - - argc = ARG_COUNT(ht); - - if (argc < 1 || argc > 3 || - getParametersEx(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 is 0"); - RETURN_FALSE; - } - - 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) -{ - pval **string, **from, **len; - int argc, l; - int f; - - argc = ARG_COUNT(ht); - - if ((argc == 2 && getParametersEx(2, &string, &from) == FAILURE) || - (argc == 3 && getParametersEx(3, &string, &from, &len) == FAILURE) || - argc < 2 || argc > 3) { - WRONG_PARAM_COUNT; - } - convert_to_string_ex(string); - convert_to_long_ex(from); - f = (*from)->value.lval; - - if (argc == 2) { - l = (*string)->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 = (*string)->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 = ((*string)->value.str.len - f) + l; - if (l < 0) { - l = 0; - } - } - - if (f >= (int)(*string)->value.str.len) { - RETURN_FALSE; - } - - if((f+l) > (int)(*string)->value.str.len) { - l = (int)(*string)->value.str.len - f; - } - - RETVAL_STRINGL((*string)->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** string; - zval** from; - zval** len; - zval** repl; - char* result; - int result_len; - int argc; - int l; - int f; - - argc = ARG_COUNT(ht); - - if ((argc == 3 && getParametersEx(3, &string, &repl, &from) == FAILURE) || - (argc == 4 && getParametersEx(4, &string, &repl, &from, &len) == FAILURE) || - argc < 3 || argc > 4) { - WRONG_PARAM_COUNT; - } - - convert_to_string_ex(string); - convert_to_string_ex(repl); - convert_to_long_ex(from); - f = (*from)->value.lval; - - if (argc == 3) { - l = (*string)->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 = (*string)->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 = ((*string)->value.str.len - f) + l; - if (l < 0) { - l = 0; - } - } - - if (f >= (int)(*string)->value.str.len) { - RETURN_STRINGL((*string)->value.str.val, (*string)->value.str.len, 1); - } - - if((f+l) > (int)(*string)->value.str.len) { - l = (int)(*string)->value.str.len - f; - } - - result_len = (*string)->value.str.len - l + (*repl)->value.str.len; - result = (char *)ecalloc(result_len + 1, sizeof(char *)); - - memcpy(result, (*string)->value.str.val, f); - memcpy(&result[f], (*repl)->value.str.val, (*repl)->value.str.len); - memcpy(&result[f + (*repl)->value.str.len], (*string)->value.str.val + f + l, - (*string)->value.str.len - f - l); - - RETVAL_STRINGL(result, result_len, 0); -} -/* }}} */ - - -/* {{{ proto string quotemeta(string str) - Quote meta characters */ -PHP_FUNCTION(quotemeta) -{ - pval **arg; - char *str, *old; - char *p, *q; - char c; - - if (ARG_COUNT(ht) != 1 || getParametersEx(1, &arg) == FAILURE) { - WRONG_PARAM_COUNT; - } - convert_to_string_ex(arg); - - old = (*arg)->value.str.val; - - if (!*old) { - RETURN_FALSE; - } - - str = emalloc(2 * (*arg)->value.str.len + 1); - - for(p = old, q = str; (c = *p); 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_STRING(erealloc(str, q - str + 1), 0); -} -/* }}} */ - -/* {{{ proto int ord(string character) - Return ASCII value of character */ -PHP_FUNCTION(ord) -{ - pval **str; - - if (ARG_COUNT(ht) != 1 || getParametersEx(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) -{ - pval **num; - char temp[2]; - - if (ARG_COUNT(ht) != 1 || getParametersEx(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) -{ - pval **arg; - - if (ARG_COUNT(ht) != 1 || getParametersEx(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; - char *r; - char *r_end; - - if (ARG_COUNT(ht) != 1 || getParametersEx(1, &str) == FAILURE) { - WRONG_PARAM_COUNT; - } - convert_to_string_ex(str); - - if (!(*str)->value.str.len) { - RETURN_FALSE; - } - *return_value=**str; - zval_copy_ctor(return_value); - *return_value->value.str.val = toupper((unsigned char)*return_value->value.str.val); - - r=return_value->value.str.val; - r_end = r + (*str)->value.str.len; - while((r=php_memnstr(r, " ", 1, r_end)) != NULL){ - if(r < r_end){ - r++; - *r=toupper((unsigned char)*r); - } else { - break; - } - } -} -/* }}} */ - -PHPAPI char *php_strtr(char *string, int len, char *str_from, - char *str_to, int trlen) -{ - int i; - unsigned char xlat[256]; - - if ((trlen < 1) || (len < 1)) { - return string; - } - - 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++) { - string[i] = xlat[(unsigned char) string[i]]; - } - - return string; -} - -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, newpos, newlen, found; - char *newstr, *key; - - zend_hash_internal_pointer_reset(hash); - while (zend_hash_get_current_data(hash, (void **)&entry) == SUCCESS) { - switch (zend_hash_get_current_key(hash, &string_key, &num_key)) { - case HASH_KEY_IS_STRING: - len = strlen(string_key); - if (len > maxlen) maxlen = len; - if (len < minlen) minlen = len; - efree(string_key); - 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(hash); - } - - key = emalloc(maxlen+1); - newstr = emalloc(8192); - newlen = 8192; - newpos = 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; - } - - if ((newpos + tlen + 1) > newlen) { - newlen = newpos + tlen + 1 + 8192; - newstr = realloc(newstr,newlen); - } - - memcpy(newstr+newpos,tval,tlen); - newpos += tlen; - pos += len; - found = 1; - - if ((*trans)->type != IS_STRING) { - zval_dtor(&tmp); - } - break; - } - } - - if (! found) { - if ((newpos + 1) > newlen) { - newlen = newpos + 1 + 8192; - newstr = realloc(newstr,newlen); - } - - newstr[ newpos++ ] = str[ pos++ ]; - } - } - - efree(key); - newstr[ newpos ] = 0; - RETURN_STRINGL(newstr,newpos,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) */ - pval **str, **from, **to; - int ac = ARG_COUNT(ht); - - if (ac < 2 || ac > 3 || getParametersEx(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); - - 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) -{ - pval **str; - int i,len; - char c; - - if (ARG_COUNT(ht)!=1 || getParametersEx(1, &str)==FAILURE) { - WRONG_PARAM_COUNT; - } - - convert_to_string_ex(str); - - len = (*str)->value.str.len; - - for (i=0; i<len-1-i; i++) { - c=(*str)->value.str.val[i]; - (*str)->value.str.val[i] = (*str)->value.str.val[len-1-i]; - (*str)->value.str.val[len-1-i]=c; - } - - *return_value = **str; - pval_copy_constructor(return_value); -} -/* }}} */ - -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) -{ - pval **t1, **t2, **percent; - int ac = ARG_COUNT(ht); - int sim; - - if (ac < 2 || ac > 3 || - getParametersEx(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 *string, 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(string); - } - s = string; - t = string; - 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) -{ - pval **str, **what; - - if (ARG_COUNT(ht) != 2 || getParametersEx(2, &str, &what) == FAILURE) { - WRONG_PARAM_COUNT; - } - convert_to_string_ex(str); - convert_to_string_ex(what); - 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) -{ - pval **str; - - if (ARG_COUNT(ht) != 1 || getParametersEx(1, &str) == FAILURE) { - WRONG_PARAM_COUNT; - } - convert_to_string_ex(str); - 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) -{ - pval **str; - - if (ARG_COUNT(ht) != 1 || getParametersEx(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) -{ - pval **str; - - if (ARG_COUNT(ht) != 1 || getParametersEx(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 -#if !APACHE -char *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 -#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++='\\'; - *target++=*source; - } - } - } else { - *target++=*source; - } - } - *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 *) emalloc((length?length:(length=strlen(str)))*2+1); - char *source,*target; - char *end; - char c; - PLS_FETCH(); - - for (source=str,end=source+length,target=new_str; (c = *source) || source<end; 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,pval *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 inline char * -php_memnstr(char *haystack, char *needle, int needle_len, char *end) -{ - char *p = haystack; - char *s = NULL; - - for(; p <= end - needle_len && - (s = memchr(p, *needle, end - p - needle_len + 1)); p = s + 1) { - if(memcmp(s, needle, needle_len) == 0) - return s; - } - return NULL; -} - -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, *q; - char *r, *s; - char *end = haystack + length; - char *new; - char *off; - - new = emalloc(length); - /* we jump through haystack searching for the needle. hurray! */ - for(p = haystack, q = new; - (r = php_memnstr(p, needle, needle_len, end));) { - /* this ain't optimal. you could call it `efficient memory usage' */ - off = erealloc(new, (q - new) + (r - p) + (str_len) + 1); - if(off != new) { - if(!off) { - goto finish; - } - q += off - new; - new = off; - } - memcpy(q, p, r - p); - q += r - p; - memcpy(q, str, str_len); - q += str_len; - p = r + needle_len; - } - - /* if there is a rest, copy it */ - if((end - p) > 0) { - s = (q) + (end - p); - off = erealloc(new, s - new + 1); - if(off != new) { - if(!off) { - goto finish; - } - q += off - new; - new = off; - s = q + (end - p); - } - memcpy(q, p, end - p); - q = s; - } -finish: - *q = '\0'; - if(_new_length) *_new_length = q - new; - return new; -} - - -/* {{{ proto string str_replace(string needle, string str, string haystack) - Replace all occurrences of needle in haystack with str */ -PHP_FUNCTION(str_replace) -{ - pval **haystack, **needle, **str; - char *new; - int len = 0; - - if(ARG_COUNT(ht) != 3 || - getParametersEx(3, &needle, &str, &haystack) == FAILURE) { - WRONG_PARAM_COUNT; - } - - convert_to_string_ex(haystack); - convert_to_string_ex(needle); - convert_to_string_ex(str); - - if((*haystack)->value.str.len == 0) { - RETURN_STRING(empty_string,1); - } - - if((*needle)->value.str.len == 1) { - php_char_to_str((*haystack)->value.str.val, - (*haystack)->value.str.len, - (*needle)->value.str.val[0], - (*str)->value.str.val, - (*str)->value.str.len, - return_value); - return; - } - - if((*needle)->value.str.len == 0) { - php_error(E_WARNING, "The length of the needle must not be 0"); - RETURN_FALSE; - } - - new = php_str_to_str((*haystack)->value.str.val, (*haystack)->value.str.len, - (*needle)->value.str.val, (*needle)->value.str.len, - (*str)->value.str.val, (*str)->value.str.len, &len); - RETURN_STRINGL(new, len, 0); -} -/* }}} */ - -/* 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) -{ - pval **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(ARG_COUNT(ht)) { - case 1: - if (getParametersEx(1, &str)==FAILURE) { - RETURN_FALSE; - } - break; - case 2: - if (getParametersEx(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) -{ - pval **str; - - if (ARG_COUNT(ht)!=1 || getParametersEx(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",5,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; - pval **str, **allow=NULL; - - switch(ARG_COUNT(ht)) { - case 1: - if(getParametersEx(1, &str)==FAILURE) { - RETURN_FALSE; - } - break; - case 2: - if(getParametersEx(2, &str, &allow)==FAILURE) { - RETURN_FALSE; - } - convert_to_string_ex(allow); - break; - default: - WRONG_PARAM_COUNT; - break; - } - convert_to_string_ex(str); - buf = estrdup((*str)->value.str.val); - php_strip_tags(buf, (*str)->value.str.len, 0, allow?(*allow)->value.str.val:NULL); - RETURN_STRING(buf, 0); -} -/* }}} */ - -/* {{{ proto string setlocale(string category, string locale) - Set locale information */ -PHP_FUNCTION(setlocale) -{ - pval **pcategory, **plocale; - pval *category, *locale; - int cat; - char *loc, *retval; - BLS_FETCH(); - - if (ARG_COUNT(ht)!=2 || getParametersEx(2, &pcategory, &plocale)==FAILURE) - WRONG_PARAM_COUNT; -#ifdef HAVE_SETLOCALE - convert_to_string_ex(pcategory); - convert_to_string_ex(plocale); - category = *pcategory; - locale = *plocale; - 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; - 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(strtok_string) = estrdup(retval); - } - - RETVAL_STRING(retval,1); - return; - } -#endif - RETURN_FALSE; -} -/* }}} */ - -/* {{{ proto void parse_str(string encoded_string) - Parses GET/POST/COOKIE data and sets global variables. */ -PHP_FUNCTION(parse_str) -{ - pval **arg; - char *res = NULL; - ELS_FETCH(); - PLS_FETCH(); - SLS_FETCH(); - - if (getParametersEx(1, &arg) == FAILURE) { - WRONG_PARAM_COUNT; - } - convert_to_string_ex(arg); - if ((*arg)->value.str.val && *(*arg)->value.str.val) { - res = estrndup((*arg)->value.str.val,(*arg)->value.str.len); - } - php_treat_data(PARSE_STRING, res ELS_CC PLS_CC SLS_CC); -} -/* }}} */ - -#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 i=0, state=0, done=0; - char *norm = emalloc(len); - - 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> - */ - while(i<len && !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) { - char *tbuf, *buf, *p, *tp, *rp, c, lc; - int br, i=0; - - buf = estrdup(rbuf); - c = *buf; - lc = '\0'; - p = buf; - rp = rbuf; - br = 0; - if(allow) { - php_strtolower(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; - } - } - 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 (ARG_COUNT(ht) != 2 || getParametersEx(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 < 1) { - php_error(E_WARNING, "Second argument to %s() has to be greater than 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); - - /* 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 + 1, 0); -} -/* }}} */ - -/* - * Local variables: - * tab-width: 4 - * c-basic-offset: 4 - * End: - */ |