summaryrefslogtreecommitdiff
path: root/ext/intl/normalizer/normalizer_normalize.c
diff options
context:
space:
mode:
Diffstat (limited to 'ext/intl/normalizer/normalizer_normalize.c')
-rw-r--r--ext/intl/normalizer/normalizer_normalize.c258
1 files changed, 258 insertions, 0 deletions
diff --git a/ext/intl/normalizer/normalizer_normalize.c b/ext/intl/normalizer/normalizer_normalize.c
new file mode 100644
index 0000000..f46285e
--- /dev/null
+++ b/ext/intl/normalizer/normalizer_normalize.c
@@ -0,0 +1,258 @@
+/*
+ +----------------------------------------------------------------------+
+ | PHP Version 5 |
+ +----------------------------------------------------------------------+
+ | This source file is subject to version 3.01 of the PHP license, |
+ | that is bundled with this package in the file LICENSE, and is |
+ | available through the world-wide-web at the following url: |
+ | http://www.php.net/license/3_01.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: Ed Batutis <ed@batutis.com> |
+ +----------------------------------------------------------------------+
+ */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include "php_intl.h"
+#include "unicode/unorm.h"
+#include "normalizer.h"
+#include "normalizer_class.h"
+#include "normalizer_normalize.h"
+#include "intl_convert.h"
+
+/* {{{ proto string Normalizer::normalize( string $input [, string $form = FORM_C] )
+ * Normalize a string. }}} */
+/* {{{ proto string normalizer_normalize( string $input [, string $form = FORM_C] )
+ * Normalize a string.
+ */
+PHP_FUNCTION( normalizer_normalize )
+{
+ char* input = NULL;
+ /* form is optional, defaults to FORM_C */
+ long form = NORMALIZER_DEFAULT;
+ int input_len = 0;
+
+ UChar* uinput = NULL;
+ int uinput_len = 0;
+ int expansion_factor = 1;
+ UErrorCode status = U_ZERO_ERROR;
+
+ UChar* uret_buf = NULL;
+ int uret_len = 0;
+
+ char* ret_buf = NULL;
+ int32_t ret_len = 0;
+
+ int32_t size_needed;
+
+ intl_error_reset( NULL TSRMLS_CC );
+
+ /* Parse parameters. */
+ if( zend_parse_method_parameters( ZEND_NUM_ARGS() TSRMLS_CC, getThis(), "s|l",
+ &input, &input_len, &form ) == FAILURE )
+ {
+ intl_error_set( NULL, U_ILLEGAL_ARGUMENT_ERROR,
+ "normalizer_normalize: unable to parse input params", 0 TSRMLS_CC );
+
+ RETURN_FALSE;
+ }
+
+ expansion_factor = 1;
+
+ switch(form) {
+ case NORMALIZER_NONE:
+ break;
+ case NORMALIZER_FORM_D:
+ expansion_factor = 3;
+ break;
+ case NORMALIZER_FORM_KD:
+ expansion_factor = 3;
+ break;
+ case NORMALIZER_FORM_C:
+ case NORMALIZER_FORM_KC:
+ break;
+ default:
+ intl_error_set( NULL, U_ILLEGAL_ARGUMENT_ERROR,
+ "normalizer_normalize: illegal normalization form", 0 TSRMLS_CC );
+ RETURN_FALSE;
+ }
+
+ /*
+ * Normalize string (converting it to UTF-16 first).
+ */
+
+ /* First convert the string to UTF-16. */
+ intl_convert_utf8_to_utf16(&uinput, &uinput_len, input, input_len, &status );
+
+ if( U_FAILURE( status ) )
+ {
+ /* Set global error code. */
+ intl_error_set_code( NULL, status TSRMLS_CC );
+
+ /* Set error messages. */
+ intl_error_set_custom_msg( NULL, "Error converting input string to UTF-16", 0 TSRMLS_CC );
+ if (uinput) {
+ efree( uinput );
+ }
+ RETURN_FALSE;
+ }
+
+
+ /* Allocate memory for the destination buffer for normalization */
+ uret_len = uinput_len * expansion_factor;
+ uret_buf = eumalloc( uret_len + 1 );
+
+ /* normalize */
+ size_needed = unorm_normalize( uinput, uinput_len, form, (int32_t) 0 /* options */, uret_buf, uret_len, &status);
+
+ /* Bail out if an unexpected error occurred.
+ * (U_BUFFER_OVERFLOW_ERROR means that *target buffer is not large enough).
+ * (U_STRING_NOT_TERMINATED_WARNING usually means that the input string is empty).
+ */
+ if( U_FAILURE(status) && status != U_BUFFER_OVERFLOW_ERROR && status != U_STRING_NOT_TERMINATED_WARNING ) {
+ efree( uret_buf );
+ efree( uinput );
+ RETURN_NULL();
+ }
+
+ if ( size_needed > uret_len ) {
+ /* realloc does not seem to work properly - memory is corrupted
+ * uret_buf = eurealloc(uret_buf, size_needed + 1);
+ */
+ efree( uret_buf );
+ uret_buf = eumalloc( size_needed + 1 );
+ uret_len = size_needed;
+
+ status = U_ZERO_ERROR;
+
+ /* try normalize again */
+ size_needed = unorm_normalize( uinput, uinput_len, form, (int32_t) 0 /* options */, uret_buf, uret_len, &status);
+
+ /* Bail out if an unexpected error occurred. */
+ if( U_FAILURE(status) ) {
+ /* Set error messages. */
+ intl_error_set_custom_msg( NULL,"Error normalizing string", 0 TSRMLS_CC );
+ efree( uret_buf );
+ efree( uinput );
+ RETURN_FALSE;
+ }
+ }
+
+ efree( uinput );
+
+ /* the buffer we actually used */
+ uret_len = size_needed;
+
+ /* Convert normalized string from UTF-16 to UTF-8. */
+ intl_convert_utf16_to_utf8( &ret_buf, &ret_len, uret_buf, uret_len, &status );
+ efree( uret_buf );
+ if( U_FAILURE( status ) )
+ {
+ intl_error_set( NULL, status,
+ "normalizer_normalize: error converting normalized text UTF-8", 0 TSRMLS_CC );
+ RETURN_FALSE;
+ }
+
+ /* Return it. */
+ RETVAL_STRINGL( ret_buf, ret_len, FALSE );
+}
+/* }}} */
+
+/* {{{ proto bool Normalizer::isNormalized( string $input [, string $form = FORM_C] )
+ * Test if a string is in a given normalization form. }}} */
+/* {{{ proto bool normalizer_is_normalize( string $input [, string $form = FORM_C] )
+ * Test if a string is in a given normalization form.
+ */
+PHP_FUNCTION( normalizer_is_normalized )
+{
+ char* input = NULL;
+ /* form is optional, defaults to FORM_C */
+ long form = NORMALIZER_DEFAULT;
+ int input_len = 0;
+
+ UChar* uinput = NULL;
+ int uinput_len = 0;
+ UErrorCode status = U_ZERO_ERROR;
+
+ UBool uret = FALSE;
+
+ intl_error_reset( NULL TSRMLS_CC );
+
+ /* Parse parameters. */
+ if( zend_parse_method_parameters( ZEND_NUM_ARGS() TSRMLS_CC, getThis(), "s|l",
+ &input, &input_len, &form) == FAILURE )
+ {
+ intl_error_set( NULL, U_ILLEGAL_ARGUMENT_ERROR,
+ "normalizer_is_normalized: unable to parse input params", 0 TSRMLS_CC );
+
+ RETURN_FALSE;
+ }
+
+ switch(form) {
+ /* case NORMALIZER_NONE: not allowed - doesn't make sense */
+
+ case NORMALIZER_FORM_D:
+ case NORMALIZER_FORM_KD:
+ case NORMALIZER_FORM_C:
+ case NORMALIZER_FORM_KC:
+ break;
+ default:
+ intl_error_set( NULL, U_ILLEGAL_ARGUMENT_ERROR,
+ "normalizer_normalize: illegal normalization form", 0 TSRMLS_CC );
+ RETURN_FALSE;
+ }
+
+
+ /*
+ * Test normalization of string (converting it to UTF-16 first).
+ */
+
+ /* First convert the string to UTF-16. */
+ intl_convert_utf8_to_utf16(&uinput, &uinput_len, input, input_len, &status );
+
+ if( U_FAILURE( status ) )
+ {
+ /* Set global error code. */
+ intl_error_set_code( NULL, status TSRMLS_CC );
+
+ /* Set error messages. */
+ intl_error_set_custom_msg( NULL, "Error converting string to UTF-16.", 0 TSRMLS_CC );
+ if (uinput) {
+ efree( uinput );
+ }
+ RETURN_FALSE;
+ }
+
+
+ /* test string */
+ uret = unorm_isNormalizedWithOptions( uinput, uinput_len, form, (int32_t) 0 /* options */, &status);
+
+ efree( uinput );
+
+ /* Bail out if an unexpected error occurred. */
+ if( U_FAILURE(status) ) {
+ /* Set error messages. */
+ intl_error_set_custom_msg( NULL,"Error testing if string is the given normalization form.", 0 TSRMLS_CC );
+ RETURN_FALSE;
+ }
+
+ if ( uret )
+ RETURN_TRUE;
+
+ RETURN_FALSE;
+}
+/* }}} */
+
+/*
+ * Local variables:
+ * tab-width: 4
+ * c-basic-offset: 4
+ * End:
+ * vim600: noet sw=4 ts=4 fdm=marker
+ * vim<600: noet sw=4 ts=4
+ */