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php5  5.3.10
Typedefs | Functions
collator_sort.h File Reference
#include <php.h>
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Typedefs

typedef int(* collator_compare_func_t )(zval *result, zval *op1, zval *op2 TSRMLS_DC)

Functions

 PHP_FUNCTION (collator_sort)
 PHP_FUNCTION (collator_sort_with_sort_keys)
 PHP_FUNCTION (collator_get_sort_key)
 PHP_FUNCTION (collator_asort)

Typedef Documentation

typedef int(* collator_compare_func_t)(zval *result, zval *op1, zval *op2 TSRMLS_DC)

Definition at line 23 of file collator_sort.h.


Function Documentation

Definition at line 343 of file collator_sort.c.

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Definition at line 356 of file collator_sort.c.

{
       zval*       array                = NULL;
       HashTable*  hash                 = NULL;
       zval**      hashData             = NULL;                     /* currently processed item of input hash */

       char*       sortKeyBuf           = NULL;                     /* buffer to store sort keys */
       uint32_t    sortKeyBufSize       = DEF_SORT_KEYS_BUF_SIZE;   /* buffer size */
       ptrdiff_t   sortKeyBufOffset     = 0;                        /* pos in buffer to store sort key */
       int32_t     sortKeyLen           = 0;                        /* the length of currently processing key */
       uint32_t    bufLeft              = 0;
       uint32_t    bufIncrement         = 0;

       collator_sort_key_index_t* sortKeyIndxBuf = NULL;            /* buffer to store 'indexes' which will be passed to 'qsort' */
       uint32_t    sortKeyIndxBufSize   = DEF_SORT_KEYS_INDX_BUF_SIZE;
       uint32_t    sortKeyIndxSize      = sizeof( collator_sort_key_index_t );

       uint32_t    sortKeyCount         = 0;
       uint32_t    j                    = 0;

       UChar*      utf16_buf            = NULL;                     /* tmp buffer to hold current processing string in utf-16 */
       int         utf16_buf_size       = DEF_UTF16_BUF_SIZE;       /* the length of utf16_buf */
       int         utf16_len            = 0;                        /* length of converted string */

       HashTable* sortedHash            = NULL;

       COLLATOR_METHOD_INIT_VARS

       /* Parse parameters. */
       if( zend_parse_method_parameters( ZEND_NUM_ARGS() TSRMLS_CC, getThis(), "Oa",
              &object, Collator_ce_ptr, &array ) == FAILURE )
       {
              intl_error_set( NULL, U_ILLEGAL_ARGUMENT_ERROR,
                     "collator_sort_with_sort_keys: unable to parse input params", 0 TSRMLS_CC );

              RETURN_FALSE;
       }

       /* Fetch the object. */
       COLLATOR_METHOD_FETCH_OBJECT;

       if (!co || !co->ucoll) {
              intl_error_set_code( NULL, COLLATOR_ERROR_CODE( co ) TSRMLS_CC );
              intl_errors_set_custom_msg( COLLATOR_ERROR_P( co ),
                     "Object not initialized", 0 TSRMLS_CC );
              php_error_docref(NULL TSRMLS_CC, E_RECOVERABLE_ERROR, "Object not initialized");

              RETURN_FALSE;
       }

       /*
        * Sort specified array.
        */
       hash = HASH_OF( array );

       if( !hash || zend_hash_num_elements( hash ) == 0 )
              RETURN_TRUE;

       /* Create bufers */
       sortKeyBuf     = ecalloc( sortKeyBufSize,     sizeof( char    ) );
       sortKeyIndxBuf = ecalloc( sortKeyIndxBufSize, sizeof( uint8_t ) );
       utf16_buf      = eumalloc( utf16_buf_size );

       /* Iterate through input hash and create a sort key for each value. */
       zend_hash_internal_pointer_reset( hash );
       while( zend_hash_get_current_data( hash, (void**) &hashData ) == SUCCESS )
       {
              /* Convert current hash item from UTF-8 to UTF-16LE and save the result to utf16_buf. */

              utf16_len = utf16_buf_size;

              /* Process string values only. */
              if( Z_TYPE_PP( hashData ) == IS_STRING )
              {
                     intl_convert_utf8_to_utf16( &utf16_buf, &utf16_len, Z_STRVAL_PP( hashData ), Z_STRLEN_PP( hashData ), COLLATOR_ERROR_CODE_P( co ) );

                     if( U_FAILURE( COLLATOR_ERROR_CODE( co ) ) )
                     {
                            intl_error_set_code( NULL, COLLATOR_ERROR_CODE( co ) TSRMLS_CC );
                            intl_errors_set_custom_msg( COLLATOR_ERROR_P( co ), "Sort with sort keys failed", 0 TSRMLS_CC );

                            if( utf16_buf )
                                   efree( utf16_buf );

                            efree( sortKeyIndxBuf );
                            efree( sortKeyBuf );

                            RETURN_FALSE;
                     }
              }
              else
              {
                     /* Set empty string */
                     utf16_len = 0;
                     utf16_buf[utf16_len] = 0;
              }

              if( (utf16_len + 1) > utf16_buf_size )
                     utf16_buf_size = utf16_len + 1;

              /* Get sort key, reallocating the buffer if needed. */
              bufLeft = sortKeyBufSize - sortKeyBufOffset;

              sortKeyLen = ucol_getSortKey( co->ucoll,
                                                                 utf16_buf,
                                                                 utf16_len,
                                                                 (uint8_t*)sortKeyBuf + sortKeyBufOffset,
                                                                 bufLeft );

              /* check for sortKeyBuf overflow, increasing its size of the buffer if needed */
              if( sortKeyLen > bufLeft )
              {
                     bufIncrement = ( sortKeyLen > DEF_SORT_KEYS_BUF_INCREMENT ) ? sortKeyLen : DEF_SORT_KEYS_BUF_INCREMENT;

                     sortKeyBufSize += bufIncrement;
                     bufLeft += bufIncrement;

                     sortKeyBuf = erealloc( sortKeyBuf, sortKeyBufSize );

                     sortKeyLen = ucol_getSortKey( co->ucoll, utf16_buf, utf16_len, (uint8_t*)sortKeyBuf + sortKeyBufOffset, bufLeft );
              }

              /*  check sortKeyIndxBuf overflow, increasing its size of the buffer if needed */
              if( ( sortKeyCount + 1 ) * sortKeyIndxSize > sortKeyIndxBufSize )
              {
                     bufIncrement = ( sortKeyIndxSize > DEF_SORT_KEYS_INDX_BUF_INCREMENT ) ? sortKeyIndxSize : DEF_SORT_KEYS_INDX_BUF_INCREMENT;

                     sortKeyIndxBufSize += bufIncrement;

                     sortKeyIndxBuf = erealloc( sortKeyIndxBuf, sortKeyIndxBufSize );
              }

              sortKeyIndxBuf[sortKeyCount].key = (char*)sortKeyBufOffset;    /* remeber just offset, cause address */
                                                                             /* of 'sortKeyBuf' may be changed due to realloc. */
              sortKeyIndxBuf[sortKeyCount].zstr = hashData;

              sortKeyBufOffset += sortKeyLen;
              ++sortKeyCount;

              zend_hash_move_forward( hash );
       }

       /* update ptrs to point to valid keys. */
       for( j = 0; j < sortKeyCount; j++ )
              sortKeyIndxBuf[j].key = sortKeyBuf + (ptrdiff_t)sortKeyIndxBuf[j].key;

       /* sort it */
       zend_qsort( sortKeyIndxBuf, sortKeyCount, sortKeyIndxSize, collator_cmp_sort_keys TSRMLS_CC );

       /* for resulting hash we'll assign new hash keys rather then reordering */
       ALLOC_HASHTABLE( sortedHash );
       zend_hash_init( sortedHash, 0, NULL, ZVAL_PTR_DTOR, 0 );

       for( j = 0; j < sortKeyCount; j++ )
       {
              zval_add_ref( sortKeyIndxBuf[j].zstr );
              zend_hash_next_index_insert( sortedHash, sortKeyIndxBuf[j].zstr, sizeof(zval **), NULL );
       }

       /* Save sorted hash into return variable. */
       zval_dtor( array );
       (array)->value.ht = sortedHash;
       (array)->type = IS_ARRAY;

       if( utf16_buf )
              efree( utf16_buf );

       efree( sortKeyIndxBuf );
       efree( sortKeyBuf );

       RETURN_TRUE;
}

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PHP_FUNCTION ( collator_get_sort_key  )

Definition at line 545 of file collator_sort.c.

{
       char*            str      = NULL;
       int              str_len  = 0;
       UChar*           ustr     = NULL;
       int              ustr_len = 0;
       uint8_t*         key     = NULL;
       int              key_len = 0;

       COLLATOR_METHOD_INIT_VARS

       /* Parse parameters. */
       if( zend_parse_method_parameters( ZEND_NUM_ARGS() TSRMLS_CC, getThis(), "Os",
              &object, Collator_ce_ptr, &str, &str_len ) == FAILURE )
       {
              intl_error_set( NULL, U_ILLEGAL_ARGUMENT_ERROR,
                      "collator_get_sort_key: unable to parse input params", 0 TSRMLS_CC );

              RETURN_FALSE;
       }

       /* Fetch the object. */
       COLLATOR_METHOD_FETCH_OBJECT;

       if (!co || !co->ucoll) {
              intl_error_set_code( NULL, COLLATOR_ERROR_CODE( co ) TSRMLS_CC );
              intl_errors_set_custom_msg( COLLATOR_ERROR_P( co ),
                     "Object not initialized", 0 TSRMLS_CC );
              php_error_docref(NULL TSRMLS_CC, E_RECOVERABLE_ERROR, "Object not initialized");

              RETURN_FALSE;
       }

       /*
        * Compare given strings (converting them to UTF-16 first).
        */

       /* First convert the strings to UTF-16. */
       intl_convert_utf8_to_utf16(
              &ustr, &ustr_len, str, str_len, COLLATOR_ERROR_CODE_P( co ) );
       if( U_FAILURE( COLLATOR_ERROR_CODE( co ) ) )
       {
              /* Set global error code. */
              intl_error_set_code( NULL, COLLATOR_ERROR_CODE( co ) TSRMLS_CC );

              /* Set error messages. */
              intl_errors_set_custom_msg( COLLATOR_ERROR_P( co ),
                     "Error converting first argument to UTF-16", 0 TSRMLS_CC );
              efree( ustr );
              RETURN_FALSE;
       }

       key_len = ucol_getSortKey(co->ucoll, ustr, ustr_len, key, 0);
       if(!key_len) {
              efree( ustr );
              RETURN_FALSE;
       }
       key = emalloc(key_len);
       key_len = ucol_getSortKey(co->ucoll, ustr, ustr_len, key, key_len);
       efree( ustr );
       if(!key_len) {
              RETURN_FALSE;
       }
       RETURN_STRINGL((char *)key, key_len, 0);
}

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Definition at line 535 of file collator_sort.c.

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