120 lines
2.5 KiB
PHP
120 lines
2.5 KiB
PHP
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<?php
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/**
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* Parser output with source map
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*
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* @package Less
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* @subpackage Output
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*/
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class Less_Output_Mapped extends Less_Output {
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/**
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* The source map generator
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*
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* @var Less_SourceMap_Generator
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*/
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protected $generator;
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/**
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* Current line
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*
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* @var integer
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*/
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protected $lineNumber = 0;
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/**
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* Current column
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*
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* @var integer
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*/
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protected $column = 0;
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/**
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* Array of contents map (file and its content)
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*
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* @var array
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*/
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protected $contentsMap = array();
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/**
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* Constructor
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*
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* @param array $contentsMap Array of filename to contents map
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* @param Less_SourceMap_Generator $generator
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*/
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public function __construct( array $contentsMap, $generator ) {
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$this->contentsMap = $contentsMap;
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$this->generator = $generator;
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}
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/**
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* Adds a chunk to the stack
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* The $index for less.php may be different from less.js since less.php does not chunkify inputs
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*
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* @param string $chunk
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* @param string $fileInfo
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* @param integer $index
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* @param mixed $mapLines
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*/
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public function add( $chunk, $fileInfo = null, $index = 0, $mapLines = null ) {
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// ignore adding empty strings
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if ( $chunk === '' ) {
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return;
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}
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$sourceLines = array();
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$sourceColumns = ' ';
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if ( $fileInfo ) {
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$url = $fileInfo['currentUri'];
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if ( isset( $this->contentsMap[$url] ) ) {
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$inputSource = substr( $this->contentsMap[$url], 0, $index );
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$sourceLines = explode( "\n", $inputSource );
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$sourceColumns = end( $sourceLines );
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} else {
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throw new Exception( 'Filename '.$url.' not in contentsMap' );
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}
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}
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$lines = explode( "\n", $chunk );
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$columns = end( $lines );
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if ( $fileInfo ) {
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if ( !$mapLines ) {
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$this->generator->addMapping(
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$this->lineNumber + 1, // generated_line
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$this->column, // generated_column
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count( $sourceLines ), // original_line
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strlen( $sourceColumns ), // original_column
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$fileInfo
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);
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} else {
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for ( $i = 0, $count = count( $lines ); $i < $count; $i++ ) {
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$this->generator->addMapping(
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$this->lineNumber + $i + 1, // generated_line
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$i === 0 ? $this->column : 0, // generated_column
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count( $sourceLines ) + $i, // original_line
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$i === 0 ? strlen( $sourceColumns ) : 0, // original_column
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$fileInfo
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);
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}
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}
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}
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if ( count( $lines ) === 1 ) {
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$this->column += strlen( $columns );
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} else {
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$this->lineNumber += count( $lines ) - 1;
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$this->column = strlen( $columns );
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}
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// add only chunk
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parent::add( $chunk );
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}
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}
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