From 07942aef43733a54c9a2b86131ee9fa841159b52 Mon Sep 17 00:00:00 2001
From: Roman Dvornov <rdvornov@gmail.com>
Date: Sun, 15 Jan 2017 00:20:13 +0300
Subject: [PATCH] add support for :matches (fixes #28)

---
 lib/parser/index.js                           |   5 +-
 .../parse/simpleSelector/pseudo-matches.json  | 161 ++++++++++++++++++
 .../{Negation.json => pseudo-negation.json}   |   0
 3 files changed, 164 insertions(+), 2 deletions(-)
 create mode 100644 test/fixture/parse/simpleSelector/pseudo-matches.json
 rename test/fixture/parse/simpleSelector/{Negation.json => pseudo-negation.json} (100%)

diff --git a/lib/parser/index.js b/lib/parser/index.js
index cbbe4642..af4b987a 100644
--- a/lib/parser/index.js
+++ b/lib/parser/index.js
@@ -52,7 +52,8 @@ var SCOPE_ATRULE_EXPRESSION = {
 };
 var SCOPE_SELECTOR = {
     url: getUri,
-    not: getNotFunction
+    not: getSelectorFunction,
+    matches: getSelectorFunction
 };
 var SCOPE_VALUE = {
     url: getUri,
@@ -1065,7 +1066,7 @@ function getFunctionArguments(scope) {
     return children;
 }
 
-function getNotFunction(scope, info, name) {
+function getSelectorFunction(scope, info, name) {
     return getFunctionInternal(function() {
         return new List().appendData(getSelector(true));
     }, scope, info, name);
diff --git a/test/fixture/parse/simpleSelector/pseudo-matches.json b/test/fixture/parse/simpleSelector/pseudo-matches.json
new file mode 100644
index 00000000..45fb5478
--- /dev/null
+++ b/test/fixture/parse/simpleSelector/pseudo-matches.json
@@ -0,0 +1,161 @@
+{
+    "basic negation": {
+        "source": ":matches(el.class-postfix)",
+        "ast": {
+            "type": "PseudoClass",
+            "name": "matches",
+            "children": [
+                {
+                    "type": "Selector",
+                    "children": [
+                        {
+                            "type": "SimpleSelector",
+                            "children": [
+                                {
+                                    "type": "Type",
+                                    "name": "el"
+                                },
+                                {
+                                    "type": "Class",
+                                    "name": "class-postfix"
+                                }
+                            ]
+                        }
+                    ]
+                }
+            ]
+        }
+    },
+    "negation with selector group": {
+        "source": ":matches(.a,.b)",
+        "ast": {
+            "type": "PseudoClass",
+            "name": "matches",
+            "children": [
+                {
+                    "type": "Selector",
+                    "children": [
+                        {
+                            "type": "SimpleSelector",
+                            "children": [
+                                {
+                                    "type": "Class",
+                                    "name": "a"
+                                }
+                            ]
+                        },
+                        {
+                            "type": "SimpleSelector",
+                            "children": [
+                                {
+                                    "type": "Class",
+                                    "name": "b"
+                                }
+                            ]
+                        }
+                    ]
+                }
+            ]
+        }
+    },
+    "negation with selector group and spaces": {
+        "source": ":matches(  .a  ,  .b  )",
+        "translate": ":matches(.a,.b)",
+        "ast": {
+            "type": "PseudoClass",
+            "name": "matches",
+            "children": [
+                {
+                    "type": "Selector",
+                    "children": [
+                        {
+                            "type": "SimpleSelector",
+                            "children": [
+                                {
+                                    "type": "Class",
+                                    "name": "a"
+                                }
+                            ]
+                        },
+                        {
+                            "type": "SimpleSelector",
+                            "children": [
+                                {
+                                    "type": "Class",
+                                    "name": "b"
+                                }
+                            ]
+                        }
+                    ]
+                }
+            ]
+        }
+    },
+    "should be case insensitive": {
+        "source": ":MatcheS(.a,.b)",
+        "ast": {
+            "type": "PseudoClass",
+            "name": "MatcheS",
+            "children": [
+                {
+                    "type": "Selector",
+                    "children": [
+                        {
+                            "type": "SimpleSelector",
+                            "children": [
+                                {
+                                    "type": "Class",
+                                    "name": "a"
+                                }
+                            ]
+                        },
+                        {
+                            "type": "SimpleSelector",
+                            "children": [
+                                {
+                                    "type": "Class",
+                                    "name": "b"
+                                }
+                            ]
+                        }
+                    ]
+                }
+            ]
+        }
+    },
+    "error #1": {
+        "source": ":matches(.a{)",
+        "offset": "           ^",
+        "error": "Unexpected input"
+    },
+    "error #2": {
+        "source": ":matches(,.b)",
+        "offset": "         ^",
+        "error": "Unexpected comma"
+    },
+    "error #3": {
+        "source": ":matches(.a,)",
+        "offset": "           ^",
+        "error": "Unexpected trailing comma"
+    },
+    "error #4": {
+        "source": ":matches(.a,,)",
+        "offset": "            ^",
+        "error": "Unexpected comma"
+    },
+    "error #5": {
+        "source": ":matches(.a,.b{)",
+        "offset": "              ^",
+        "error": "Unexpected input"
+    },
+    "error #6": {
+        "source": ":matches(--test) {}",
+        "offset": "          ^",
+        "error": "Identifier is expected"
+    },
+    "error #7": {
+        "source": ":matches(var(--test)) {}",
+        "offset": "            ^",
+        "error": "Unexpected input"
+    }
+}
diff --git a/test/fixture/parse/simpleSelector/Negation.json b/test/fixture/parse/simpleSelector/pseudo-negation.json
similarity index 100%
rename from test/fixture/parse/simpleSelector/Negation.json
rename to test/fixture/parse/simpleSelector/pseudo-negation.json