Matecat\XliffParser\XliffReplacer\AbstractXliffReplacer::replaceTranslation()

Complexity

Conditions	5
Paths	4

Size

Total Lines	55
Code Lines	17

Duplication

Lines	0
Ratio	0 %

Importance

Changes	3
Bugs	0	Features	0

<?php
    public function replaceTranslation() {
        fwrite( $this->outputFP, '<?xml version="1.0" encoding="UTF-8"?>' );

        //create Sax parser
        $xmlParser = $this->initSaxParser();

        while ( $this->currentBuffer = fread( $this->originalFP, 4096 ) ) {
            /*
               preprocess file
             */
            // obfuscate entities because sax automatically does html_entity_decode
            $temporary_check_buffer = preg_replace( "/&(.*?);/", self::$INTERNAL_TAG_PLACEHOLDER . '$1' . self::$INTERNAL_TAG_PLACEHOLDER, $this->currentBuffer );

            //avoid cutting entities in half:
            //the last fread could have truncated an entity (say, '&lt;' in '&l'), thus invalidating the escaping
            //***** and if there is an & that it is not an entity, this is an infinite loop !!!!!
            // 9 is the max length of an entity. So, suppose that the & is at the end of buffer,
            // add 9 Bytes and substitute the entities, if the & is present, and it is not at the end
            //it can't be an entity, exit the loop
            while ( true ) {
                $_ampPos = strpos( $temporary_check_buffer, '&' );

                //check for real entity or escape it to safely exit from the loop!!!
                if ( $_ampPos === false || strlen( substr( $temporary_check_buffer, $_ampPos ) ) > 9 ) {
                    break;
                }

                //if an entity is still present, fetch some more and repeat the escaping
                $this->currentBuffer    .= fread( $this->originalFP, 9 );
                $temporary_check_buffer = preg_replace( "/&(.*?);/", self::$INTERNAL_TAG_PLACEHOLDER . '$1' . self::$INTERNAL_TAG_PLACEHOLDER, $this->currentBuffer );
            }

            //free stuff outside the loop
            unset( $temporary_check_buffer );

            $this->currentBuffer = preg_replace( "/&(.*?);/", self::$INTERNAL_TAG_PLACEHOLDER . '$1' . self::$INTERNAL_TAG_PLACEHOLDER, $this->currentBuffer );
            $this->currentBuffer = str_replace( "&", self::$INTERNAL_TAG_PLACEHOLDER . 'amp' . self::$INTERNAL_TAG_PLACEHOLDER, $this->currentBuffer );

            //get length of chunk
            $this->len = strlen( $this->currentBuffer );

            /*
            * Get the accumulated this->offset in the document:
             * as long as SAX pointer advances, we keep track of total bytes it has seen so far;
             * this way, we can translate its global pointer in an address local to the current buffer of text to retrieve the last char of tag
            */
            $this->offset += $this->len;

            //parse chunk of text
            $this->runParser( $xmlParser );

        }

        // close Sax parser
        $this->closeSaxParser( $xmlParser );

}