104 lines
2.4 KiB
PHP
104 lines
2.4 KiB
PHP
<?php
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/**
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* Parser Exception
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*/
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class Less_Exception_Parser extends Exception {
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/**
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* The current file
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*
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* @var array
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*/
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public $currentFile;
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/**
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* The current parser index
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*
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* @var int
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*/
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public $index;
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protected $input;
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protected $details = [];
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/**
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* @param string|null $message
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* @param Exception|null $previous Previous exception
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* @param int|null $index The current parser index
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* @param array|null $currentFile The file
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* @param int $code The exception code
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*/
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public function __construct( $message = null, Exception $previous = null, $index = null, $currentFile = null, $code = 0 ) {
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parent::__construct( $message, $code, $previous );
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$this->currentFile = $currentFile;
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$this->index = $index;
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$this->genMessage();
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}
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protected function getInput() {
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if ( !$this->input && $this->currentFile && $this->currentFile['filename'] && file_exists( $this->currentFile['filename'] ) ) {
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$this->input = file_get_contents( $this->currentFile['filename'] );
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}
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}
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/**
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* Set a message based on the exception info
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*/
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public function genMessage() {
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if ( $this->currentFile && $this->currentFile['filename'] ) {
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$this->message .= ' in ' . basename( $this->currentFile['filename'] );
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}
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if ( $this->index !== null ) {
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$this->getInput();
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if ( $this->input ) {
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$line = self::getLineNumber();
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$this->message .= ' on line ' . $line . ', column ' . self::getColumn();
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$lines = explode( "\n", $this->input );
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$count = count( $lines );
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$start_line = max( 0, $line - 3 );
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$last_line = min( $count, $start_line + 6 );
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$num_len = strlen( $last_line );
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for ( $i = $start_line; $i < $last_line; $i++ ) {
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$this->message .= "\n" . str_pad( (string)( $i + 1 ), $num_len, '0', STR_PAD_LEFT ) . '| ' . $lines[$i];
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}
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}
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}
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}
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/**
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* Returns the line number the error was encountered
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*
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* @return int
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*/
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public function getLineNumber() {
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if ( $this->index ) {
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// https://bugs.php.net/bug.php?id=49790
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if ( ini_get( "mbstring.func_overload" ) ) {
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return substr_count( substr( $this->input, 0, $this->index ), "\n" ) + 1;
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} else {
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return substr_count( $this->input, "\n", 0, $this->index ) + 1;
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}
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}
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return 1;
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}
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/**
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* Returns the column the error was encountered
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*
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* @return int
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*/
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public function getColumn() {
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$part = substr( $this->input, 0, $this->index );
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$pos = strrpos( $part, "\n" );
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return $this->index - $pos;
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}
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}
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