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string.c
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string.c
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/*
+------------------------------------------------------------------------+
| Zephir Language |
+------------------------------------------------------------------------+
| Copyright (c) 2011-2014 Zephir Team (http://www.zephir-lang.com) |
+------------------------------------------------------------------------+
| This source file is subject to the New BSD License that is bundled |
| with this package in the file docs/LICENSE.txt. |
| |
| If you did not receive a copy of the license and are unable to |
| obtain it through the world-wide-web, please send an email |
| to license@zephir-lang.com so we can send you a copy immediately. |
+------------------------------------------------------------------------+
| Authors: Andres Gutierrez <andres@zephir-lang.com> |
| Eduar Carvajal <eduar@zephir-lang.com> |
| Vladimir Kolesnikov <vladimir@extrememember.com> |
+------------------------------------------------------------------------+
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <ctype.h>
#include <php.h>
#include "php_ext.h"
#include "php_main.h"
#include <ext/standard/php_smart_str.h>
#include <ext/standard/php_string.h>
#include <ext/standard/php_rand.h>
#include <ext/standard/php_lcg.h>
#include <ext/standard/php_http.h>
#include "ext/standard/base64.h"
#include "ext/standard/md5.h"
#include "ext/standard/url.h"
#include "ext/standard/html.h"
#include "ext/date/php_date.h"
#ifdef ZEPHIR_USE_PHP_PCRE
#include <ext/pcre/php_pcre.h>
#endif
#ifdef ZEPHIR_USE_PHP_JSON
#include <ext/json/php_json.h>
#endif
#include "kernel/main.h"
#include "kernel/memory.h"
#include "kernel/string.h"
#include "kernel/operators.h"
#include "kernel/fcall.h"
#define PH_RANDOM_ALNUM 0
#define PH_RANDOM_ALPHA 1
#define PH_RANDOM_HEXDEC 2
#define PH_RANDOM_NUMERIC 3
#define PH_RANDOM_NOZERO 4
/**
* Fast call to php strlen
*/
void zephir_fast_strlen(zval *return_value, zval *str){
zval copy;
int use_copy = 0;
if (Z_TYPE_P(str) != IS_STRING) {
zend_make_printable_zval(str, ©, &use_copy);
if (use_copy) {
str = ©
}
}
ZVAL_LONG(return_value, Z_STRLEN_P(str));
if (use_copy) {
zval_dtor(str);
}
}
/**
* Fast call to php strlen
*/
int zephir_fast_strlen_ev(zval *str){
zval copy;
int use_copy = 0, length;
if (Z_TYPE_P(str) != IS_STRING) {
zend_make_printable_zval(str, ©, &use_copy);
if (use_copy) {
str = ©
}
}
length = Z_STRLEN_P(str);
if (use_copy) {
zval_dtor(str);
}
return length;
}
/**
* Fast call to php strlen
*/
void zephir_fast_strtolower(zval *return_value, zval *str){
zval copy;
int use_copy = 0;
char *lower_str;
unsigned int length;
if (Z_TYPE_P(str) != IS_STRING) {
zend_make_printable_zval(str, ©, &use_copy);
if (use_copy) {
str = ©
}
}
length = Z_STRLEN_P(str);
lower_str = estrndup(Z_STRVAL_P(str), length);
php_strtolower(lower_str, length);
if (use_copy) {
zval_dtor(str);
}
ZVAL_STRINGL(return_value, lower_str, length, 0);
}
void zephir_strtolower_inplace(zval *s) {
if (likely(Z_TYPE_P(s) == IS_STRING)) {
php_strtolower(Z_STRVAL_P(s), Z_STRLEN_P(s));
}
}
/**
* Fast call to php join function
*/
void zephir_fast_join(zval *result, zval *glue, zval *pieces TSRMLS_DC){
if (Z_TYPE_P(glue) != IS_STRING || Z_TYPE_P(pieces) != IS_ARRAY) {
ZVAL_NULL(result);
zend_error(E_WARNING, "Invalid arguments supplied for join()");
return;
}
php_implode(glue, pieces, result TSRMLS_CC);
}
/**
* Appends to a smart_str a printable version of a zval
*/
void zephir_append_printable_zval(smart_str *implstr, zval **tmp TSRMLS_DC) {
zval tmp_val;
unsigned int str_len;
switch (Z_TYPE_PP(tmp)) {
case IS_STRING:
smart_str_appendl(implstr, Z_STRVAL_PP(tmp), Z_STRLEN_PP(tmp));
break;
case IS_LONG:
smart_str_append_long(implstr, Z_LVAL_PP(tmp));
break;
case IS_BOOL:
if (Z_LVAL_PP(tmp) == 1) {
smart_str_appendl(implstr, "1", sizeof("1") - 1);
}
break;
case IS_NULL:
break;
case IS_DOUBLE: {
char *stmp;
str_len = spprintf(&stmp, 0, "%.*G", (int) EG(precision), Z_DVAL_PP(tmp));
smart_str_appendl(implstr, stmp, str_len);
efree(stmp);
}
break;
case IS_OBJECT: {
int copy;
zval expr;
zend_make_printable_zval(*tmp, &expr, ©);
smart_str_appendl(implstr, Z_STRVAL(expr), Z_STRLEN(expr));
if (copy) {
zval_dtor(&expr);
}
}
break;
default:
tmp_val = **tmp;
zval_copy_ctor(&tmp_val);
convert_to_string(&tmp_val);
smart_str_appendl(implstr, Z_STRVAL(tmp_val), Z_STRLEN(tmp_val));
zval_dtor(&tmp_val);
break;
}
}
/**
* Fast join function
* This function is an adaption of the php_implode function
*
*/
void zephir_fast_join_str(zval *return_value, char *glue, unsigned int glue_length, zval *pieces TSRMLS_DC){
zval **tmp;
HashTable *arr;
HashPosition pos;
smart_str implstr = {0};
unsigned int numelems, i = 0;
if (Z_TYPE_P(pieces) != IS_ARRAY) {
php_error_docref(NULL TSRMLS_CC, E_WARNING, "Invalid arguments supplied for fast_join()");
RETURN_EMPTY_STRING();
}
arr = Z_ARRVAL_P(pieces);
numelems = zend_hash_num_elements(arr);
if (numelems == 0) {
RETURN_EMPTY_STRING();
}
zend_hash_internal_pointer_reset_ex(arr, &pos);
while (zend_hash_get_current_data_ex(arr, (void **) &tmp, &pos) == SUCCESS) {
zephir_append_printable_zval(&implstr, tmp TSRMLS_CC);
if (++i != numelems) {
smart_str_appendl(&implstr, glue, glue_length);
}
zend_hash_move_forward_ex(arr, &pos);
}
smart_str_0(&implstr);
if (implstr.len) {
RETURN_STRINGL(implstr.c, implstr.len, 0);
} else {
smart_str_free(&implstr);
RETURN_EMPTY_STRING();
}
}
/**
* Convert dash/underscored texts returning camelized
*/
void zephir_camelize(zval *return_value, const zval *str){
int i, len;
smart_str camelize_str = {0};
char *marker, ch;
if (unlikely(Z_TYPE_P(str) != IS_STRING)) {
zend_error(E_WARNING, "Invalid arguments supplied for camelize()");
RETURN_EMPTY_STRING();
}
marker = Z_STRVAL_P(str);
len = Z_STRLEN_P(str);
for (i = 0; i < len - 1; i++) {
ch = *marker;
if (i == 0 || ch == '-' || ch == '_') {
if (ch == '-' || ch == '_') {
i++;
marker++;
}
smart_str_appendc(&camelize_str, toupper(*marker));
}
else {
smart_str_appendc(&camelize_str, tolower(*marker));
}
marker++;
}
if (likely(i == len - 1)) {
smart_str_appendc(&camelize_str, *marker);
}
smart_str_0(&camelize_str);
if (camelize_str.c) {
RETURN_STRINGL(camelize_str.c, camelize_str.len, 0);
} else {
RETURN_EMPTY_STRING();
}
}
/**
* Convert dash/underscored texts returning camelized
*/
void zephir_uncamelize(zval *return_value, const zval *str){
unsigned int i;
smart_str uncamelize_str = {0};
char *marker, ch;
if (Z_TYPE_P(str) != IS_STRING) {
zend_error(E_WARNING, "Invalid arguments supplied for camelize()");
return;
}
marker = Z_STRVAL_P(str);
for (i = 0; i < Z_STRLEN_P(str); i++) {
ch = *marker;
if (ch == '\0') {
break;
}
if (ch >= 'A' && ch <= 'Z') {
if (i > 0) {
smart_str_appendc(&uncamelize_str, '_');
}
smart_str_appendc(&uncamelize_str, (*marker) + 32);
} else {
smart_str_appendc(&uncamelize_str, (*marker));
}
marker++;
}
smart_str_0(&uncamelize_str);
if (uncamelize_str.c) {
RETURN_STRINGL(uncamelize_str.c, uncamelize_str.len, 0);
} else {
RETURN_EMPTY_STRING();
}
}
/**
* Fast call to explode php function
*/
void zephir_fast_explode(zval *return_value, zval *delimiter, zval *str, long limit TSRMLS_DC){
if (unlikely(Z_TYPE_P(str) != IS_STRING || Z_TYPE_P(delimiter) != IS_STRING)) {
zend_error(E_WARNING, "Invalid arguments supplied for explode()");
RETURN_EMPTY_STRING();
}
array_init(return_value);
php_explode(delimiter, str, return_value, limit);
}
/**
* Fast call to explode php function
*/
void zephir_fast_explode_str(zval *return_value, const char *delimiter, int delimiter_length, zval *str, long limit TSRMLS_DC){
zval delimiter_zval;
if (unlikely(Z_TYPE_P(str) != IS_STRING)) {
zend_error(E_WARNING, "Invalid arguments supplied for explode()");
RETURN_EMPTY_STRING();
}
ZVAL_STRINGL(&delimiter_zval, delimiter, delimiter_length, 0);
array_init(return_value);
php_explode(&delimiter_zval, str, return_value, limit);
}
/**
* Check if a string is contained into another
*/
int zephir_memnstr(const zval *haystack, const zval *needle ZEPHIR_DEBUG_PARAMS) {
if (Z_TYPE_P(haystack) != IS_STRING || Z_TYPE_P(needle) != IS_STRING) {
#ifndef ZEPHIR_RELEASE
zend_error(E_WARNING, "Invalid arguments supplied for memnstr in %s on line %d", file, line);
#else
zend_error(E_WARNING, "Invalid arguments supplied for memnstr()");
#endif
return 0;
}
if (Z_STRLEN_P(haystack) >= Z_STRLEN_P(needle)) {
return php_memnstr(Z_STRVAL_P(haystack), Z_STRVAL_P(needle), Z_STRLEN_P(needle), Z_STRVAL_P(haystack) + Z_STRLEN_P(haystack)) ? 1 : 0;
}
return 0;
}
/**
* Check if a string is contained into another
*/
int zephir_memnstr_str(const zval *haystack, char *needle, unsigned int needle_length ZEPHIR_DEBUG_PARAMS) {
if (Z_TYPE_P(haystack) != IS_STRING) {
#ifndef ZEPHIR_RELEASE
zend_error(E_WARNING, "Invalid arguments supplied for memnstr in %s on line %d", file, line);
#else
zend_error(E_WARNING, "Invalid arguments supplied for memnstr()");
#endif
return 0;
}
if (Z_STRLEN_P(haystack) >= needle_length) {
return php_memnstr(Z_STRVAL_P(haystack), needle, needle_length, Z_STRVAL_P(haystack) + Z_STRLEN_P(haystack)) ? 1 : 0;
}
return 0;
}
/**
* Inmediate function resolution for strpos function
*/
void zephir_fast_strpos(zval *return_value, const zval *haystack, const zval *needle, unsigned int offset) {
const char *found = NULL;
if (unlikely(Z_TYPE_P(haystack) != IS_STRING || Z_TYPE_P(needle) != IS_STRING)) {
ZVAL_NULL(return_value);
zend_error(E_WARNING, "Invalid arguments supplied for strpos()");
return;
}
if (offset > Z_STRLEN_P(haystack)) {
ZVAL_NULL(return_value);
zend_error(E_WARNING, "Offset not contained in string");
return;
}
if (!Z_STRLEN_P(needle)) {
ZVAL_NULL(return_value);
zend_error(E_WARNING, "Empty delimiter");
return;
}
found = php_memnstr(Z_STRVAL_P(haystack)+offset, Z_STRVAL_P(needle), Z_STRLEN_P(needle), Z_STRVAL_P(haystack) + Z_STRLEN_P(haystack));
if (found) {
ZVAL_LONG(return_value, found-Z_STRVAL_P(haystack));
} else {
ZVAL_BOOL(return_value, 0);
}
}
/**
* Inmediate function resolution for strpos function
*/
void zephir_fast_strpos_str(zval *return_value, const zval *haystack, char *needle, unsigned int needle_length) {
const char *found = NULL;
if (unlikely(Z_TYPE_P(haystack) != IS_STRING)) {
ZVAL_NULL(return_value);
zend_error(E_WARNING, "Invalid arguments supplied for strpos()");
return;
}
found = php_memnstr(Z_STRVAL_P(haystack), needle, needle_length, Z_STRVAL_P(haystack) + Z_STRLEN_P(haystack));
if (found) {
ZVAL_LONG(return_value, found-Z_STRVAL_P(haystack));
} else {
ZVAL_BOOL(return_value, 0);
}
}
/**
* Inmediate function resolution for stripos function
*/
void zephir_fast_stripos_str(zval *return_value, zval *haystack, char *needle, unsigned int needle_length) {
const char *found = NULL;
char *needle_dup, *haystack_dup;
if (unlikely(Z_TYPE_P(haystack) != IS_STRING)) {
ZVAL_NULL(return_value);
zend_error(E_WARNING, "Invalid arguments supplied for stripos()");
return;
}
haystack_dup = estrndup(Z_STRVAL_P(haystack), Z_STRLEN_P(haystack));
php_strtolower(haystack_dup, Z_STRLEN_P(haystack));
needle_dup = estrndup(needle, needle_length);
php_strtolower(needle_dup, needle_length);
found = php_memnstr(haystack_dup, needle, needle_length, haystack_dup + Z_STRLEN_P(haystack));
efree(haystack_dup);
efree(needle_dup);
if (found) {
ZVAL_LONG(return_value, found-Z_STRVAL_P(haystack));
} else {
ZVAL_BOOL(return_value, 0);
}
}
/**
* Immediate function resolution for str_replace function
*/
void zephir_fast_str_replace(zval *return_value, zval *search, zval *replace, zval *subject) {
zval replace_copy, search_copy;
int copy_replace = 0, copy_search = 0;
if (Z_TYPE_P(subject) != IS_STRING) {
ZVAL_NULL(return_value);
zend_error(E_WARNING, "Invalid arguments supplied for str_replace()");
return;
}
if (Z_TYPE_P(replace) != IS_STRING) {
zend_make_printable_zval(replace, &replace_copy, ©_replace);
if (copy_replace) {
replace = &replace_copy;
}
}
if (Z_TYPE_P(search) != IS_STRING) {
zend_make_printable_zval(search, &search_copy, ©_search);
if (copy_search) {
search = &search_copy;
}
}
Z_TYPE_P(return_value) = IS_STRING;
if (Z_STRLEN_P(subject) == 0) {
ZVAL_STRINGL(return_value, "", 0, 1);
return;
}
if (Z_STRLEN_P(search) == 1) {
php_char_to_str_ex(Z_STRVAL_P(subject),
Z_STRLEN_P(subject),
Z_STRVAL_P(search)[0],
Z_STRVAL_P(replace),
Z_STRLEN_P(replace),
return_value,
1,
NULL);
} else {
if (Z_STRLEN_P(search) > 1) {
Z_STRVAL_P(return_value) = php_str_to_str_ex(Z_STRVAL_P(subject), Z_STRLEN_P(subject),
Z_STRVAL_P(search), Z_STRLEN_P(search),
Z_STRVAL_P(replace), Z_STRLEN_P(replace), &Z_STRLEN_P(return_value), 1, NULL);
} else {
MAKE_COPY_ZVAL(&subject, return_value);
}
}
if (copy_replace) {
zval_dtor(replace);
}
if (copy_search) {
zval_dtor(search);
}
}
/**
* Fast call to PHP trim() function
*/
void zephir_fast_trim(zval *return_value, zval *str, zval *charlist, int where TSRMLS_DC) {
zval copy;
int use_copy = 0;
if (Z_TYPE_P(str) != IS_STRING) {
zend_make_printable_zval(str, ©, &use_copy);
if (use_copy) {
str = ©
}
}
if (charlist && Z_TYPE_P(charlist) == IS_STRING) {
php_trim(Z_STRVAL_P(str), Z_STRLEN_P(str), Z_STRVAL_P(charlist), Z_STRLEN_P(charlist), return_value, where TSRMLS_CC);
} else {
php_trim(Z_STRVAL_P(str), Z_STRLEN_P(str), NULL, 0, return_value, where TSRMLS_CC);
}
if (use_copy) {
zval_dtor(©);
}
}
/**
* Fast call to PHP strip_tags() function
*/
void zephir_fast_strip_tags(zval *return_value, zval *str) {
zval copy;
int use_copy = 0;
char *stripped;
size_t len;
if (Z_TYPE_P(str) != IS_STRING) {
zend_make_printable_zval(str, ©, &use_copy);
if (use_copy) {
str = ©
}
}
stripped = estrndup(Z_STRVAL_P(str), Z_STRLEN_P(str));
len = php_strip_tags(stripped, Z_STRLEN_P(str), NULL, NULL, 0);
if (use_copy) {
zval_dtor(©);
}
ZVAL_STRINGL(return_value, stripped, len, 0);
}
/**
* Fast call to PHP strtoupper() function
*/
void zephir_fast_strtoupper(zval *return_value, zval *str) {
zval copy;
int use_copy = 0;
char *lower_str;
unsigned int length;
if (Z_TYPE_P(str) != IS_STRING) {
zend_make_printable_zval(str, ©, &use_copy);
if (use_copy) {
str = ©
}
}
length = Z_STRLEN_P(str);
lower_str = estrndup(Z_STRVAL_P(str), length);
php_strtoupper(lower_str, length);
if (use_copy) {
zval_dtor(str);
}
ZVAL_STRINGL(return_value, lower_str, length, 0);
}
/**
* Checks if a zval string starts with a zval string
*/
int zephir_start_with(const zval *str, const zval *compared, zval *case_sensitive){
int sensitive = 0;
int i;
char *op1_cursor, *op2_cursor;
if (Z_TYPE_P(str) != IS_STRING || Z_TYPE_P(compared) != IS_STRING) {
return 0;
}
if (!Z_STRLEN_P(compared) || !Z_STRLEN_P(str) || Z_STRLEN_P(compared) > Z_STRLEN_P(str)) {
return 0;
}
if (case_sensitive) {
sensitive = zend_is_true(case_sensitive);
}
if (!sensitive) {
return !memcmp(Z_STRVAL_P(str), Z_STRVAL_P(compared), Z_STRLEN_P(compared));
}
op1_cursor = Z_STRVAL_P(str);
op2_cursor = Z_STRVAL_P(compared);
for (i = 0; i < Z_STRLEN_P(compared); i++) {
if (tolower(*op1_cursor) != tolower(*op2_cursor)) {
return 0;
}
op1_cursor++;
op2_cursor++;
}
return 1;
}
/**
* Checks if a zval string starts with a string
*/
int zephir_start_with_str(const zval *str, char *compared, unsigned int compared_length){
if (Z_TYPE_P(str) != IS_STRING || compared_length > Z_STRLEN_P(str)) {
return 0;
}
return !memcmp(Z_STRVAL_P(str), compared, compared_length);
}
/**
* Checks if a string starts with other string
*/
int zephir_start_with_str_str(char *str, unsigned int str_length, char *compared, unsigned int compared_length){
if (compared_length > str_length) {
return 0;
}
return !memcmp(str, compared, compared_length);
}
/**
* Checks if a zval string ends with a zval string
*/
int zephir_end_with(const zval *str, const zval *compared, zval *case_sensitive){
int sensitive = 0;
int i;
char *op1_cursor, *op2_cursor;
if (Z_TYPE_P(str) != IS_STRING || Z_TYPE_P(compared) != IS_STRING) {
return 0;
}
if (!Z_STRLEN_P(compared) || !Z_STRLEN_P(str) || Z_STRLEN_P(compared) > Z_STRLEN_P(str)) {
return 0;
}
if (case_sensitive) {
sensitive = zend_is_true(case_sensitive);
}
if (!sensitive) {
return !memcmp(Z_STRVAL_P(str) + Z_STRLEN_P(str) - Z_STRLEN_P(compared), Z_STRVAL_P(compared), Z_STRLEN_P(compared));
}
op1_cursor = Z_STRVAL_P(str) + Z_STRLEN_P(str) - Z_STRLEN_P(compared);
op2_cursor = Z_STRVAL_P(compared);
for (i = 0; i < Z_STRLEN_P(compared); ++i) {
if (tolower(*op1_cursor) != tolower(*op2_cursor)) {
return 0;
}
++op1_cursor;
++op2_cursor;
}
return 1;
}
/**
* Checks if a zval string ends with a *char string
*/
int zephir_end_with_str(const zval *str, char *compared, unsigned int compared_length){
if (Z_TYPE_P(str) != IS_STRING) {
return 0;
}
if (!compared_length || !Z_STRLEN_P(str) || compared_length > Z_STRLEN_P(str)) {
return 0;
}
return !memcmp(Z_STRVAL_P(str) + Z_STRLEN_P(str) - compared_length, compared, compared_length);
}
/**
*
*/
void zephir_random_string(zval *return_value, const zval *type, const zval *length TSRMLS_DC) {
long i, rand_type, ch;
smart_str random_str = {0};
if (Z_TYPE_P(type) != IS_LONG) {
return;
}
if (Z_LVAL_P(type) > PH_RANDOM_NOZERO) {
return;
}
if (Z_TYPE_P(length) != IS_LONG) {
return;
}
/** Generate seed */
if (!BG(mt_rand_is_seeded)) {
php_mt_srand(GENERATE_SEED() TSRMLS_CC);
}
for (i = 0; i < Z_LVAL_P(length); i++) {
switch (Z_LVAL_P(type)) {
case PH_RANDOM_ALNUM:
rand_type = (long) (php_mt_rand(TSRMLS_C) >> 1);
RAND_RANGE(rand_type, 0, 3, PHP_MT_RAND_MAX);
break;
case PH_RANDOM_ALPHA:
rand_type = (long) (php_mt_rand(TSRMLS_C) >> 1);
RAND_RANGE(rand_type, 1, 2, PHP_MT_RAND_MAX);
break;
case PH_RANDOM_HEXDEC:
rand_type = (long) (php_mt_rand(TSRMLS_C) >> 1);
RAND_RANGE(rand_type, 0, 1, PHP_MT_RAND_MAX);
break;
case PH_RANDOM_NUMERIC:
rand_type = 0;
break;
case PH_RANDOM_NOZERO:
rand_type = 5;
break;
default:
continue;
}
switch (rand_type) {
case 0:
ch = (long) (php_mt_rand(TSRMLS_C) >> 1);
RAND_RANGE(ch, '0', '9', PHP_MT_RAND_MAX);
break;
case 1:
ch = (long) (php_mt_rand(TSRMLS_C) >> 1);
RAND_RANGE(ch, 'a', 'f', PHP_MT_RAND_MAX);
break;
case 2:
ch = (long) (php_mt_rand(TSRMLS_C) >> 1);
RAND_RANGE(ch, 'a', 'z', PHP_MT_RAND_MAX);
break;
case 3:
ch = (long) (php_mt_rand(TSRMLS_C) >> 1);
RAND_RANGE(ch, 'A', 'Z', PHP_MT_RAND_MAX);
break;
case 5:
ch = (long) (php_mt_rand(TSRMLS_C) >> 1);
RAND_RANGE(ch, '1', '9', PHP_MT_RAND_MAX);
break;
default:
continue;
}
smart_str_appendc(&random_str, (unsigned int) ch);
}
smart_str_0(&random_str);
if (random_str.len) {
RETURN_STRINGL(random_str.c, random_str.len, 0);
} else {
smart_str_free(&random_str);
RETURN_EMPTY_STRING();
}
}
/**
* Removes slashes at the end of a string
*/
void zephir_remove_extra_slashes(zval *return_value, const zval *str) {
char *cursor, *removed_str;
unsigned int i;
if (Z_TYPE_P(str) != IS_STRING) {
RETURN_EMPTY_STRING();
}
if (Z_STRLEN_P(str) > 1) {
cursor = Z_STRVAL_P(str);
cursor += (Z_STRLEN_P(str) - 1);
for (i = Z_STRLEN_P(str); i > 0; i--) {
if ((*cursor) == '/') {
cursor--;
continue;
}
break;
}
} else {
i = Z_STRLEN_P(str);
}
removed_str = emalloc(i + 1);
memcpy(removed_str, Z_STRVAL_P(str), i);
removed_str[i] = '\0';
RETURN_STRINGL(removed_str, i, 0);
}
/**
* This function is not external in the Zend API so we redeclare it here in the extension
*/
int zephir_spprintf(char **message, int max_len, char *format, ...)
{
va_list arg;
int len;
va_start(arg, format);
len = vspprintf(message, max_len, format, arg);
va_end(arg);
return len;
}
/**
* Makes a substr like the PHP function. This function SUPPORT negative from and length
*/
void zephir_substr(zval *return_value, zval *str, long f, long l) {
if (Z_TYPE_P(str) != IS_STRING) {
if (Z_TYPE_P(str) == IS_NULL || Z_TYPE_P(str) == IS_BOOL) {
RETURN_FALSE;
}
if (Z_TYPE_P(str) == IS_LONG) {
RETURN_EMPTY_STRING();
}
zend_error(E_WARNING, "Invalid arguments supplied for zephir_substr()");
RETURN_FALSE;
}
long str_len = Z_STRLEN_P(str);
if ((l < 0 && -l > str_len)) {
RETURN_FALSE;
} else if (l > str_len) {
l = str_len;
} else if (l == 0) {
l = str_len;
}
if (f > str_len) {
RETURN_FALSE;
} else if (f < 0 && -f > str_len) {
f = 0;
}
if (l < 0 && (l + str_len - f) < 0) {
RETURN_FALSE;
}
/* if "from" position is negative, count start position from the end
* of the string
*/
if (f < 0) {
f = 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_len - f) + l;
if (l < 0) {
l = 0;
}
}
if (f >= str_len) {
RETURN_FALSE;
}
if ((f + l) > str_len) {
l = str_len - f;
}
if (l <= 0){
RETURN_EMPTY_STRING();
}
RETURN_STRINGL(Z_STRVAL_P(str) + f, l, 1);
}
void zephir_append_printable_array(smart_str *implstr, zval *value TSRMLS_DC) {
zval **tmp;
HashTable *arr;
HashPosition pos;
unsigned int numelems, i = 0, str_len;
arr = Z_ARRVAL_P(value);
numelems = zend_hash_num_elements(arr);
smart_str_appendc(implstr, '[');
if (numelems > 0) {
zend_hash_internal_pointer_reset_ex(arr, &pos);
while (zend_hash_get_current_data_ex(arr, (void **) &tmp, &pos) == SUCCESS) {
/**
* We don't serialize objects
*/
if (Z_TYPE_PP(tmp) == IS_OBJECT) {