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Added stripos() & strripos() functions.

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Added 3rd parameter (offset) to strrpos().
This commit is contained in:
Ilia Alshanetsky
2003-01-11 17:52:38 +00:00
parent 76c663b321
commit 8facc65202
1 changed files with 123 additions and 5 deletions
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128
ext/standard/string.c
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@@ -1481,23 +1481,94 @@ PHP_FUNCTION(strpos)
}
/* }}} */
/* {{{ proto int strrpos(string haystack, string needle)
/* {{{ proto int stripos(string haystack, string needle [, int offset])
Finds position of first occurrence of a string within another, case insensitive */
PHP_FUNCTION(stripos)
{
char *found = NULL;
char *haystack;
int haystack_len;
long offset = 0;
char *needle_dup = NULL, *haystack_dup;
char needle_char[2];
zval *needle;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "sz|l", &haystack, &haystack_len, &needle, &offset) == FAILURE) {
return;
}
if (offset < 0 || offset > haystack_len) {
php_error_docref(NULL TSRMLS_CC, E_WARNING, "Offset not contained in string.");
RETURN_FALSE;
}
haystack_dup = estrndup(haystack, haystack_len);
php_strtolower(haystack_dup, haystack_len);
if (Z_TYPE_P(needle) == IS_STRING) {
needle_dup = estrndup(Z_STRVAL_P(needle), Z_STRLEN_P(needle));
php_strtolower(needle_dup, Z_STRLEN_P(needle));
found = php_memnstr(haystack_dup + offset, needle_dup, Z_STRLEN_P(needle), haystack_dup + haystack_len);
} else {
switch (Z_TYPE_P(needle)) {
case IS_LONG:
case IS_BOOL:
needle_char[0] = tolower((char) Z_LVAL_P(needle));
break;
case IS_DOUBLE:
needle_char[0] = tolower((char) Z_DVAL_P(needle));
break;
default:
php_error_docref(NULL TSRMLS_CC, E_WARNING, "needle is not a string or an integer.");
efree(haystack_dup);
RETURN_FALSE;
break;
}
needle_char[1] = '\0';
found = php_memnstr(haystack_dup + offset, needle_char, sizeof(needle_char) - 1, haystack_dup + haystack_len);
}
efree(haystack_dup);
if (needle_dup) {
efree(needle_dup);
}
if (found) {
RETURN_LONG(found - haystack_dup);
} else {
RETURN_FALSE;
}
}
/* }}} */
/* {{{ proto int strrpos(string haystack, string needle [, int offset])
Finds position of last occurrence of a character in a string within another */
PHP_FUNCTION(strrpos)
{
zval **haystack, **needle;
zval **haystack, **needle, **offset;
char *found = NULL;
int argc = ZEND_NUM_ARGS();
int off = 0;
if (ZEND_NUM_ARGS() != 2 || zend_get_parameters_ex(2, &haystack, &needle) == FAILURE) {
if (argc < 2 || argc > 3 || zend_get_parameters_ex(argc, &haystack, &needle, &offset) == FAILURE) {
WRONG_PARAM_COUNT;
}
convert_to_string_ex(haystack);
if (argc == 3) {
convert_to_long_ex(offset);
if (Z_LVAL_PP(offset) < 0 || Z_LVAL_PP(offset) > Z_STRLEN_PP(haystack)) {
php_error_docref(NULL TSRMLS_CC, E_WARNING, "Offset not contained in string.");
RETURN_FALSE;
}
off = Z_LVAL_PP(offset);
}
if (Z_TYPE_PP(needle) == IS_STRING) {
found = strrchr(Z_STRVAL_PP(haystack), *Z_STRVAL_PP(needle));
found = strrchr(Z_STRVAL_PP(haystack) + off, *Z_STRVAL_PP(needle));
} else {
convert_to_long_ex(needle);
found = strrchr(Z_STRVAL_PP(haystack), (char) Z_LVAL_PP(needle));
found = strrchr(Z_STRVAL_PP(haystack) + off, (char) Z_LVAL_PP(needle));
}
if (found) {
@@ -1508,6 +1579,53 @@ PHP_FUNCTION(strrpos)
}
/* }}} */
/* {{{ proto int strripos(string haystack, string needle [, int offset])
Finds position of last occurrence of a character in a string within another, case insensitive */
PHP_FUNCTION(strripos)
{
zval **haystack, **needle, **offset;
char *found = NULL;
int argc = ZEND_NUM_ARGS();
int off = 0;
char *haystack_dup;
char needle_dup;
if (argc < 2 || argc > 3 || zend_get_parameters_ex(argc, &haystack, &needle, &offset) == FAILURE) {
WRONG_PARAM_COUNT;
}
convert_to_string_ex(haystack);
if (argc == 3) {
convert_to_long_ex(offset);
if (Z_LVAL_PP(offset) < 0 || Z_LVAL_PP(offset) > Z_STRLEN_PP(haystack)) {
php_error_docref(NULL TSRMLS_CC, E_WARNING, "Offset not contained in string.");
RETURN_FALSE;
}
off = Z_LVAL_PP(offset);
}
haystack_dup = estrndup(Z_STRVAL_PP(haystack), Z_STRLEN_PP(haystack));
php_strtolower(haystack_dup, Z_STRLEN_PP(haystack));
if (Z_TYPE_PP(needle) == IS_STRING) {
needle_dup = *Z_STRVAL_PP(needle);
} else {
convert_to_long_ex(needle);
needle_dup = (char) Z_LVAL_PP(needle);
}
found = strrchr(haystack_dup + off, tolower(needle_dup));
efree(haystack_dup);
if (found) {
RETURN_LONG(Z_STRLEN_PP(haystack) - strlen(found));
} else {
RETURN_FALSE;
}
}
/* }}} */
/* {{{ proto string strrchr(string haystack, string needle)
Finds the last occurrence of a character in a string within another */
PHP_FUNCTION(strrchr)