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add php_mb_check_encoding

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This commit is contained in:
Masaki Kagaya 2015-03-01 21:43:09 +09:00 • committed by Anatol Belski
parent 2349332b66
commit ee6ccea3eb
2 changed files with 57 additions and 40 deletions
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96
ext/mbstring/mbstring.c
View file

@ -4672,6 +4672,58 @@ PHP_FUNCTION(mb_get_info)
}
/* }}} */
MBSTRING_API int php_mb_check_encoding(const char *input, size_t length, const char *enc)
{
const mbfl_encoding *encoding = MBSTRG(current_internal_encoding);
mbfl_buffer_converter *convd;
mbfl_string string, result, *ret = NULL;
long illegalchars = 0;
if (input == NULL) {
return MBSTRG(illegalchars) == 0;
}
if (enc != NULL) {
encoding = mbfl_name2encoding(enc);
if (!encoding || encoding == &mbfl_encoding_pass) {
php_error_docref(NULL, E_WARNING, "Invalid encoding \"%s\"", enc);
return 0;
}
}
convd = mbfl_buffer_converter_new2(encoding, encoding, 0);
if (convd == NULL) {
php_error_docref(NULL, E_WARNING, "Unable to create converter");
return 0;
}
mbfl_buffer_converter_illegal_mode(convd, MBFL_OUTPUTFILTER_ILLEGAL_MODE_NONE);
mbfl_buffer_converter_illegal_substchar(convd, 0);
/* initialize string */
mbfl_string_init_set(&string, mbfl_no_language_neutral, encoding->no_encoding);
mbfl_string_init(&result);
string.val = (unsigned char *) input;
string.len = length;
ret = mbfl_buffer_converter_feed_result(convd, &string, &result);
illegalchars = mbfl_buffer_illegalchars(convd);
mbfl_buffer_converter_delete(convd);
if (ret != NULL) {
if (illegalchars == 0 && string.len == result.len && memcmp(string.val, result.val, string.len) == 0) {
mbfl_string_clear(&result);
return 1;
}
mbfl_string_clear(&result);
}
return 0;
}
/* {{{ proto bool mb_check_encoding([string var[, string encoding]])
Check if the string is valid for the specified encoding */
PHP_FUNCTION(mb_check_encoding)
@ -4680,51 +4732,15 @@ PHP_FUNCTION(mb_check_encoding)
size_t var_len;
char *enc = NULL;
size_t enc_len;
mbfl_buffer_converter *convd;
const mbfl_encoding *encoding = MBSTRG(current_internal_encoding);
mbfl_string string, result, *ret = NULL;
long illegalchars = 0;
if (zend_parse_parameters(ZEND_NUM_ARGS(), "|ss", &var, &var_len, &enc, &enc_len) == FAILURE) {
return;
}
if (var == NULL) {
RETURN_BOOL(MBSTRG(illegalchars) == 0);
}
if (enc != NULL) {
encoding = mbfl_name2encoding(enc);
if (!encoding || encoding == &mbfl_encoding_pass) {
php_error_docref(NULL, E_WARNING, "Invalid encoding \"%s\"", enc);
RETURN_FALSE;
}
}
convd = mbfl_buffer_converter_new2(encoding, encoding, 0);
if (convd == NULL) {
php_error_docref(NULL, E_WARNING, "Unable to create converter");
RETURN_FALSE;
}
mbfl_buffer_converter_illegal_mode(convd, MBFL_OUTPUTFILTER_ILLEGAL_MODE_NONE);
mbfl_buffer_converter_illegal_substchar(convd, 0);
/* initialize string */
mbfl_string_init_set(&string, mbfl_no_language_neutral, encoding->no_encoding);
mbfl_string_init(&result);
string.val = (unsigned char *)var;
string.len = var_len;
ret = mbfl_buffer_converter_feed_result(convd, &string, &result);
illegalchars = mbfl_buffer_illegalchars(convd);
mbfl_buffer_converter_delete(convd);
}
RETVAL_FALSE;
if (ret != NULL) {
if (illegalchars == 0 && string.len == result.len && memcmp(string.val, result.val, string.len) == 0) {
RETVAL_TRUE;
}
mbfl_string_clear(&result);
if (php_mb_check_encoding(var, var_len, enc)) {
RETVAL_TRUE;
}
}
/* }}} */

1
ext/mbstring/mbstring.h
View file

@ -152,6 +152,7 @@ MBSTRING_API int php_mb_encoding_detector_ex(const char *arg_string, int arg_len
MBSTRING_API int php_mb_encoding_converter_ex(char **str, int *len, const char *encoding_to,
const char *encoding_from);
MBSTRING_API int php_mb_stripos(int mode, const char *old_haystack, unsigned int old_haystack_len, const char *old_needle, unsigned int old_needle_len, long offset, const char *from_encoding);
MBSTRING_API int php_mb_check_encoding(const char *input, size_t length, const char *enc);
/* internal use only */
int _php_mb_ini_mbstring_internal_encoding_set(const char *new_value, uint new_value_length);