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-rw-r--r--mod/less/vendors/lessphp/lessify.inc.php447
1 files changed, 447 insertions, 0 deletions
diff --git a/mod/less/vendors/lessphp/lessify.inc.php b/mod/less/vendors/lessphp/lessify.inc.php
new file mode 100644
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+++ b/mod/less/vendors/lessphp/lessify.inc.php
@@ -0,0 +1,447 @@
+<?php
+/**
+ * lessify
+ * Convert a css file into a less file
+ * http://leafo.net/lessphp
+ * Copyright 2010, leaf corcoran <leafot@gmail.com>
+ *
+ * WARNING: THIS DOES NOT WORK ANYMORE. NEEDS TO BE UPDATED FOR
+ * LATEST VERSION OF LESSPHP.
+ *
+ */
+
+require "lessc.inc.php";
+
+//
+// check if the merge during mixin is overwriting values. should or should it not?
+//
+
+//
+// 1. split apart class tags
+//
+
+class easyparse {
+ var $buffer;
+ var $count;
+
+ function __construct($str) {
+ $this->count = 0;
+ $this->buffer = trim($str);
+ }
+
+ function seek($where = null) {
+ if ($where === null) return $this->count;
+ else $this->count = $where;
+ return true;
+ }
+
+ function preg_quote($what) {
+ return preg_quote($what, '/');
+ }
+
+ function match($regex, &$out, $eatWhitespace = true) {
+ $r = '/'.$regex.($eatWhitespace ? '\s*' : '').'/Ais';
+ if (preg_match($r, $this->buffer, $out, null, $this->count)) {
+ $this->count += strlen($out[0]);
+ return true;
+ }
+ return false;
+ }
+
+ function literal($what, $eatWhitespace = true) {
+ // this is here mainly prevent notice from { } string accessor
+ if ($this->count >= strlen($this->buffer)) return false;
+
+ // shortcut on single letter
+ if (!$eatWhitespace and strlen($what) == 1) {
+ if ($this->buffer{$this->count} == $what) {
+ $this->count++;
+ return true;
+ }
+ else return false;
+ }
+
+ return $this->match($this->preg_quote($what), $m, $eatWhitespace);
+ }
+
+}
+
+class tagparse extends easyparse {
+ static private $combinators = null;
+ static private $match_opts = null;
+
+ function parse() {
+ if (empty(self::$combinators)) {
+ self::$combinators = '('.implode('|', array_map(array($this, 'preg_quote'),
+ array('+', '>', '~'))).')';
+ self::$match_opts = '('.implode('|', array_map(array($this, 'preg_quote'),
+ array('=', '~=', '|=', '$=', '*='))).')';
+ }
+
+ // crush whitespace
+ $this->buffer = preg_replace('/\s+/', ' ', $this->buffer).' ';
+
+ $tags = array();
+ while ($this->tag($t)) $tags[] = $t;
+
+ return $tags;
+ }
+
+ static function compileString($string) {
+ list(, $delim, $str) = $string;
+ $str = str_replace($delim, "\\".$delim, $str);
+ $str = str_replace("\n", "\\\n", $str);
+ return $delim.$str.$delim;
+ }
+
+ static function compilePaths($paths) {
+ return implode(', ', array_map(array('self', 'compilePath'), $paths));
+ }
+
+ // array of tags
+ static function compilePath($path) {
+ return implode(' ', array_map(array('self', 'compileTag'), $path));
+ }
+
+
+ static function compileTag($tag) {
+ ob_start();
+ if (isset($tag['comb'])) echo $tag['comb']." ";
+ if (isset($tag['front'])) echo $tag['front'];
+ if (isset($tag['attr'])) {
+ echo '['.$tag['attr'];
+ if (isset($tag['op'])) {
+ echo $tag['op'].$tag['op_value'];
+ }
+ echo ']';
+ }
+ return ob_get_clean();
+ }
+
+ function string(&$out) {
+ $s = $this->seek();
+
+ if ($this->literal('"')) {
+ $delim = '"';
+ } elseif ($this->literal("'")) {
+ $delim = "'";
+ } else {
+ return false;
+ }
+
+ while (true) {
+ // step through letters looking for either end or escape
+ $buff = "";
+ $escapeNext = false;
+ $finished = false;
+ for ($i = $this->count; $i < strlen($this->buffer); $i++) {
+ $char = $this->buffer[$i];
+ switch ($char) {
+ case $delim:
+ if ($escapeNext) {
+ $buff .= $char;
+ $escapeNext = false;
+ break;
+ }
+ $finished = true;
+ break 2;
+ case "\\":
+ if ($escapeNext) {
+ $buff .= $char;
+ $escapeNext = false;
+ } else {
+ $escapeNext = true;
+ }
+ break;
+ case "\n":
+ if (!$escapeNext) {
+ break 3;
+ }
+
+ $buff .= $char;
+ $escapeNext = false;
+ break;
+ default:
+ if ($escapeNext) {
+ $buff .= "\\";
+ $escapeNext = false;
+ }
+ $buff .= $char;
+ }
+ }
+ if (!$finished) break;
+ $out = array('string', $delim, $buff);
+ $this->seek($i+1);
+ return true;
+ }
+
+ $this->seek($s);
+ return false;
+ }
+
+ function tag(&$out) {
+ $s = $this->seek();
+ $tag = array();
+ if ($this->combinator($op)) $tag['comb'] = $op;
+
+ if (!$this->match('(.*?)( |$|\[|'.self::$combinators.')', $match)) {
+ $this->seek($s);
+ return false;
+ }
+
+ if (!empty($match[3])) {
+ // give back combinator
+ $this->count-=strlen($match[3]);
+ }
+
+ if (!empty($match[1])) $tag['front'] = $match[1];
+
+ if ($match[2] == '[') {
+ if ($this->ident($i)) {
+ $tag['attr'] = $i;
+
+ if ($this->match(self::$match_opts, $m) && $this->value($v)) {
+ $tag['op'] = $m[1];
+ $tag['op_value'] = $v;
+ }
+
+ if ($this->literal(']')) {
+ $out = $tag;
+ return true;
+ }
+ }
+ } elseif (isset($tag['front'])) {
+ $out = $tag;
+ return true;
+ }
+
+ $this->seek($s);
+ return false;
+ }
+
+ function ident(&$out) {
+ // [-]?{nmstart}{nmchar}*
+ // nmstart: [_a-z]|{nonascii}|{escape}
+ // nmchar: [_a-z0-9-]|{nonascii}|{escape}
+ if ($this->match('(-?[_a-z][_\w]*)', $m)) {
+ $out = $m[1];
+ return true;
+ }
+ return false;
+ }
+
+ function value(&$out) {
+ if ($this->string($str)) {
+ $out = $this->compileString($str);
+ return true;
+ } elseif ($this->ident($id)) {
+ $out = $id;
+ return true;
+ }
+ return false;
+ }
+
+
+ function combinator(&$op) {
+ if ($this->match(self::$combinators, $m)) {
+ $op = $m[1];
+ return true;
+ }
+ return false;
+ }
+}
+
+class nodecounter {
+ var $count = 0;
+ var $children = array();
+
+ var $name;
+ var $child_blocks;
+ var $the_block;
+
+ function __construct($name) {
+ $this->name = $name;
+ }
+
+ function dump($stack = null) {
+ if (is_null($stack)) $stack = array();
+ $stack[] = $this->getName();
+ echo implode(' -> ', $stack)." ($this->count)\n";
+ foreach ($this->children as $child) {
+ $child->dump($stack);
+ }
+ }
+
+ static function compileProperties($c, $block) {
+ foreach($block as $name => $value) {
+ if ($c->isProperty($name, $value)) {
+ echo $c->compileProperty($name, $value)."\n";
+ }
+ }
+ }
+
+ function compile($c, $path = null) {
+ if (is_null($path)) $path = array();
+ $path[] = $this->name;
+
+ $isVisible = !is_null($this->the_block) || !is_null($this->child_blocks);
+
+ if ($isVisible) {
+ echo $c->indent(implode(' ', $path).' {');
+ $c->indentLevel++;
+ $path = array();
+
+ if ($this->the_block) {
+ $this->compileProperties($c, $this->the_block);
+ }
+
+ if ($this->child_blocks) {
+ foreach ($this->child_blocks as $block) {
+ echo $c->indent(tagparse::compilePaths($block['__tags']).' {');
+ $c->indentLevel++;
+ $this->compileProperties($c, $block);
+ $c->indentLevel--;
+ echo $c->indent('}');
+ }
+ }
+ }
+
+ // compile child nodes
+ foreach($this->children as $node) {
+ $node->compile($c, $path);
+ }
+
+ if ($isVisible) {
+ $c->indentLevel--;
+ echo $c->indent('}');
+ }
+
+ }
+
+ function getName() {
+ if (is_null($this->name)) return "[root]";
+ else return $this->name;
+ }
+
+ function getNode($name) {
+ if (!isset($this->children[$name])) {
+ $this->children[$name] = new nodecounter($name);
+ }
+
+ return $this->children[$name];
+ }
+
+ function findNode($path) {
+ $current = $this;
+ for ($i = 0; $i < count($path); $i++) {
+ $t = tagparse::compileTag($path[$i]);
+ $current = $current->getNode($t);
+ }
+
+ return $current;
+ }
+
+ function addBlock($path, $block) {
+ $node = $this->findNode($path);
+ if (!is_null($node->the_block)) throw new exception("can this happen?");
+
+ unset($block['__tags']);
+ $node->the_block = $block;
+ }
+
+ function addToNode($path, $block) {
+ $node = $this->findNode($path);
+ $node->child_blocks[] = $block;
+ }
+}
+
+/**
+ * create a less file from a css file by combining blocks where appropriate
+ */
+class lessify extends lessc {
+ public function dump() {
+ print_r($this->env);
+ }
+
+ public function parse($str = null) {
+ $this->prepareParser($str ? $str : $this->buffer);
+ while (false !== $this->parseChunk());
+
+ $root = new nodecounter(null);
+
+ // attempt to preserve some of the block order
+ $order = array();
+
+ $visitedTags = array();
+ foreach (end($this->env) as $name => $block) {
+ if (!$this->isBlock($name, $block)) continue;
+ if (isset($visitedTags[$name])) continue;
+
+ foreach ($block['__tags'] as $t) {
+ $visitedTags[$t] = true;
+ }
+
+ // skip those with more than 1
+ if (count($block['__tags']) == 1) {
+ $p = new tagparse(end($block['__tags']));
+ $path = $p->parse();
+ $root->addBlock($path, $block);
+ $order[] = array('compressed', $path, $block);
+ continue;
+ } else {
+ $common = null;
+ $paths = array();
+ foreach ($block['__tags'] as $rawtag) {
+ $p = new tagparse($rawtag);
+ $paths[] = $path = $p->parse();
+ if (is_null($common)) $common = $path;
+ else {
+ $new_common = array();
+ foreach ($path as $tag) {
+ $head = array_shift($common);
+ if ($tag == $head) {
+ $new_common[] = $head;
+ } else break;
+ }
+ $common = $new_common;
+ if (empty($common)) {
+ // nothing in common
+ break;
+ }
+ }
+ }
+
+ if (!empty($common)) {
+ $new_paths = array();
+ foreach ($paths as $p) $new_paths[] = array_slice($p, count($common));
+ $block['__tags'] = $new_paths;
+ $root->addToNode($common, $block);
+ $order[] = array('compressed', $common, $block);
+ continue;
+ }
+
+ }
+
+ $order[] = array('none', $block['__tags'], $block);
+ }
+
+
+ $compressed = $root->children;
+ foreach ($order as $item) {
+ list($type, $tags, $block) = $item;
+ if ($type == 'compressed') {
+ $top = tagparse::compileTag(reset($tags));
+ if (isset($compressed[$top])) {
+ $compressed[$top]->compile($this);
+ unset($compressed[$top]);
+ }
+ } else {
+ echo $this->indent(implode(', ', $tags).' {');
+ $this->indentLevel++;
+ nodecounter::compileProperties($this, $block);
+ $this->indentLevel--;
+ echo $this->indent('}');
+ }
+ }
+ }
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-05 18:09:03 +0000