namibia
df0489e1eeeeab5a9bd44e1d84fce49924fe1bac
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<?php /** * Class Minify_Lines * @package Minify */ /** * Add line numbers in C-style comments for easier debugging of combined content * * @package Minify * @author Stephen Clay <steve@mrclay.org> * @author Adam Pedersen (Issue 55 fix) */ class Minify_Lines { /** * Add line numbers in C-style comments * * This uses a very basic parser easily fooled by comment tokens inside * strings or regexes, but, otherwise, generally clean code will not be * mangled. URI rewriting can also be performed. * * @param string $content * * @param array $options available options: * * 'id': (optional) string to identify file. E.g. file name/path * * 'currentDir': (default null) if given, this is assumed to be the * directory of the current CSS file. Using this, minify will rewrite * all relative URIs in import/url declarations to correctly point to * the desired files, and prepend a comment with debugging information about * this process. * * @return string */ public static function minify($content, $options = array()) { $id = (isset($options['id']) && $options['id']) ? $options['id'] : ''; $content = str_replace("\r\n", "\n", $content); // Hackily rewrite strings with XPath expressions that are // likely to throw off our dumb parser (for Prototype 1.6.1). $content = str_replace('"/*"', '"/"+"*"', $content); $content = preg_replace('@([\'"])(\\.?//?)\\*@', '$1$2$1+$1*', $content); $lines = explode("\n", $content); $numLines = count($lines); // determine left padding $padTo = strlen((string) $numLines); // e.g. 103 lines = 3 digits $inComment = false; $i = 0; $newLines = array(); while (null !== ($line = array_shift($lines))) { if (('' !== $id) && (0 == $i % 50)) { if ($inComment) { array_push($newLines, '', "/* {$id} *|", ''); } else { array_push($newLines, '', "/* {$id} */", ''); } } ++$i; $newLines[] = self::_addNote($line, $i, $inComment, $padTo); $inComment = self::_eolInComment($line, $inComment); } $content = implode("\n", $newLines) . "\n"; // check for desired URI rewriting if (isset($options['currentDir'])) { Minify_CSS_UriRewriter::$debugText = ''; $content = Minify_CSS_UriRewriter::rewrite( $content ,$options['currentDir'] ,isset($options['docRoot']) ? $options['docRoot'] : $_SERVER['DOCUMENT_ROOT'] ,isset($options['symlinks']) ? $options['symlinks'] : array() ); $content = "/* Minify_CSS_UriRewriter::\$debugText\n\n" . Minify_CSS_UriRewriter::$debugText . "*/\n" . $content; } return $content; } /** * Is the parser within a C-style comment at the end of this line? * * @param string $line current line of code * * @param bool $inComment was the parser in a comment at the * beginning of the line? * * @return bool */ private static function _eolInComment($line, $inComment) { // crude way to avoid things like // */ $line = preg_replace('~//.*?(\\*/|/\\*).*~', '', $line); while (strlen($line)) { $search = $inComment ? '*/' : '/*'; $pos = strpos($line, $search); if (false === $pos) { return $inComment; } else { if ($pos == 0 || ($inComment ? substr($line, $pos, 3) : substr($line, $pos-1, 3)) != '*/*') { $inComment = ! $inComment; } $line = substr($line, $pos + 2); } } return $inComment; } /** * Prepend a comment (or note) to the given line * * @param string $line current line of code * * @param string $note content of note/comment * * @param bool $inComment was the parser in a comment at the * beginning of the line? * * @param int $padTo minimum width of comment * * @return string */ private static function _addNote($line, $note, $inComment, $padTo) { return $inComment ? '/* ' . str_pad($note, $padTo, ' ', STR_PAD_RIGHT) . ' *| ' . $line : '/* ' . str_pad($note, $padTo, ' ', STR_PAD_RIGHT) . ' */ ' . $line; } } |
Commits for namibiapublic/min/lib/Minify/Lines.php
Revision | Author | Commited | Message |
---|---|---|---|
df0489 ... | Mark | Fri 14 Oct, 2016 10:01:00 +0000 | initial commit |