From 35b816c00269f195f7865a34c924c4bbc1110817 Mon Sep 17 00:00:00 2001
From: Fidel Remedios Rosado <fiderosado@gmail.com>
Date: Sun, 8 Feb 2026 14:36:05 -0500
Subject: [PATCH] Adding support to new patterns

---
 README.md     |  4 ++++
 src/index.php | 43 ++++++++++++++++++++++++++++++++++++++++++-
 2 files changed, 46 insertions(+), 1 deletion(-)

diff --git a/README.md b/README.md
index 158a2b6..ecf58b0 100644
--- a/README.md
+++ b/README.md
@@ -188,12 +188,16 @@ Create an `app.css` file with your Tailwind imports and `@source` directive:
 ```css
 @import "tailwindcss";
 @source "./templates";  /* Directory to scan for classes */
+
+@patterns "/->class\s*\(\s*[\"']([^\"']+)[\"']\s*\)/";/* New pattern declared */
+
 ```
 
 The `@source` directive tells TailwindPHP where to find your template files. It supports:
 - Directories: `@source "./templates";`
 - Glob patterns: `@source "./src/**/*.php";`
 - Multiple sources: Add multiple `@source` directives
+- Extended patterns: Add multiple `@patterns` directives with "new regex";
 
 ### Examples
 
diff --git a/src/index.php b/src/index.php
index 1da8e72..bd270c5 100644
--- a/src/index.php
+++ b/src/index.php
@@ -60,6 +60,9 @@
 /** @var Theme|null Cached default theme instance */
 $_defaultThemeCache = null;
 
+/* variable to store new patterns */
+$_customsPatterns = [];
+
 /**
  * Virtual modules that should not be resolved from the filesystem.
  */
@@ -892,6 +895,39 @@ function parseCss(array &$ast, array $options = []): array
             return WalkAction::ReplaceSkip([]);
         }
 
+        // Handle @patterns
+        if ($node['name'] === '@patterns') {
+            if (!empty($node['nodes'])) {
+                throw new \Exception('`@patterns` cannot have a body.');
+            }
+
+            $patternsParam = $node['params'];
+
+            // Permitir sin comillas envolventes  
+            if (
+                ($patternsParam[0] === '"' && $patternsParam[strlen($patternsParam) - 1] === '"') ||
+                ($patternsParam[0] === "'" && $patternsParam[strlen($patternsParam) - 1] === "'")
+            ) {
+                $patternsParam = substr($patternsParam, 1, -1);
+            }
+
+            // Dividir por comas y limpiar  
+            $newPatterns = array_map('trim', explode(',', $patternsParam));
+            $newPatterns = array_filter($newPatterns, 'strlen');
+
+            if (empty($newPatterns)) {
+                throw new \Exception('At least one pattern is required in @patterns directive.');
+            }
+
+            global $_customsPatterns;
+            $_customsPatterns = array_merge($_customsPatterns ?? [], $newPatterns);
+            
+            // Log para debugging
+           // fwrite(STDERR, 'customPatterns encontrados y guardados: ' . json_encode($_customsPatterns) . PHP_EOL);
+
+            return WalkAction::ReplaceSkip([]);
+        }
+
         // Handle @import - especially for 'tailwindcss' module
         if ($node['name'] === '@import') {
             $params = $node['params'];
@@ -2107,8 +2143,13 @@ function extractCandidates(string $html): array
 {
     $candidates = [];
 
+    global $_customsPatterns;
+    $customPatterns = $_customsPatterns ?? [];
+
+    $patterns = array_merge([REGEX_CLASS_ATTR, REGEX_CLASS_ATTR_PARENS, REGEX_CLASSNAME_ATTR], $customPatterns);
+
     // Extract from class and className attributes
-    foreach ([REGEX_CLASS_ATTR, REGEX_CLASSNAME_ATTR] as $pattern) {
+    foreach ($patterns as $pattern) {
         if (preg_match_all($pattern, $html, $matches)) {
             foreach ($matches[1] as $classAttr) {
                 foreach (preg_split(REGEX_WHITESPACE, $classAttr) as $class) {