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| 1 | <?php |
| 2 | |
| 3 | /** |
| 4 | * Parser Exception |
| 5 | */ |
| 6 | class Less_Exception_Parser extends Exception { |
| 7 | |
| 8 | /** |
| 9 | * The current file |
| 10 | * |
| 11 | * @var array |
| 12 | */ |
| 13 | public $currentFile; |
| 14 | |
| 15 | /** |
| 16 | * The current parser index |
| 17 | * |
| 18 | * @var int |
| 19 | */ |
| 20 | public $index; |
| 21 | |
| 22 | protected $input; |
| 23 | |
| 24 | protected $details = []; |
| 25 | |
| 26 | /** |
| 27 | * @param string|null $message |
| 28 | * @param Exception|null $previous Previous exception |
| 29 | * @param int|null $index The current parser index |
| 30 | * @param array|null $currentFile The file |
| 31 | * @param int $code The exception code |
| 32 | */ |
| 33 | public function __construct( $message = null, Exception $previous = null, $index = null, $currentFile = null, $code = 0 ) { |
| 34 | parent::__construct( $message, $code, $previous ); |
| 35 | |
| 36 | $this->currentFile = $currentFile; |
| 37 | $this->index = $index; |
| 38 | |
| 39 | $this->genMessage(); |
| 40 | } |
| 41 | |
| 42 | protected function getInput() { |
| 43 | if ( !$this->input && $this->currentFile && $this->currentFile['filename'] && file_exists( $this->currentFile['filename'] ) ) { |
| 44 | $this->input = file_get_contents( $this->currentFile['filename'] ); |
| 45 | } |
| 46 | } |
| 47 | |
| 48 | /** |
| 49 | * Set a message based on the exception info |
| 50 | */ |
| 51 | public function genMessage() { |
| 52 | if ( $this->currentFile && $this->currentFile['filename'] ) { |
| 53 | $this->message .= ' in ' . basename( $this->currentFile['filename'] ); |
| 54 | } |
| 55 | |
| 56 | if ( $this->index !== null ) { |
| 57 | $this->getInput(); |
| 58 | if ( $this->input ) { |
| 59 | $line = self::getLineNumber(); |
| 60 | $this->message .= ' on line ' . $line . ', column ' . self::getColumn(); |
| 61 | |
| 62 | $lines = explode( "\n", $this->input ); |
| 63 | |
| 64 | $count = count( $lines ); |
| 65 | $start_line = max( 0, $line - 3 ); |
| 66 | $last_line = min( $count, $start_line + 6 ); |
| 67 | $num_len = strlen( $last_line ); |
| 68 | for ( $i = $start_line; $i < $last_line; $i++ ) { |
| 69 | $this->message .= "\n" . str_pad( (string)( $i + 1 ), $num_len, '0', STR_PAD_LEFT ) . '| ' . $lines[$i]; |
| 70 | } |
| 71 | } |
| 72 | } |
| 73 | } |
| 74 | |
| 75 | /** |
| 76 | * Returns the line number the error was encountered |
| 77 | * |
| 78 | * @return int |
| 79 | */ |
| 80 | public function getLineNumber() { |
| 81 | if ( $this->index ) { |
| 82 | // https://bugs.php.net/bug.php?id=49790 |
| 83 | if ( ini_get( "mbstring.func_overload" ) ) { |
| 84 | return substr_count( substr( $this->input, 0, $this->index ), "\n" ) + 1; |
| 85 | } else { |
| 86 | return substr_count( $this->input, "\n", 0, $this->index ) + 1; |
| 87 | } |
| 88 | } |
| 89 | return 1; |
| 90 | } |
| 91 | |
| 92 | /** |
| 93 | * Returns the column the error was encountered |
| 94 | * |
| 95 | * @return int |
| 96 | */ |
| 97 | public function getColumn() { |
| 98 | $part = substr( $this->input, 0, $this->index ); |
| 99 | $pos = strrpos( $part, "\n" ); |
| 100 | return $this->index - $pos; |
| 101 | } |
| 102 | |
| 103 | } |