parsel-js - npm Package Compare versions

Comparing version 1.0.1 to 1.0.2

package.json

 {
   "name": "parsel-js",
-  "version": "1.0.1",
+  "version": "1.0.2",
   "description": "A tiny, permissive CSS selector parser",
-  "main": "parsel.js",
+  "main": "dist/cjs/parsel.min.js",
+  "module": "dist/parsel.min.js",
+  "exports": {
+    ".": {
+      "import": "./dist/parsel.min.js",
+      "require": "./dist/cjs/parsel.min.js",
+      "browser": "./parsel.js",
+      "umd": "./dist/umd/parsel.min.js"
+    }
+  },
   "scripts": {
     "test": "open test.html",
-    "build": "node build.js"
+    "build": "rollup -c"
   },
@@ -23,3 +32,7 @@ "repository": {
   },
-  "homepage": "https://projects.verou.me/parsel"
+  "homepage": "https://projects.verou.me/parsel",
+  "devDependencies": {
+    "rollup": "^2.49.0",
+    "rollup-plugin-terser": "^7.0.2"
+  }
 }

parsel.js

@@ -1,3 +0,3 @@
-const TOKENS = {
-	attribute: /\[\s*(?:(?<namespace>\*|[-\w]*)\|)?(?<name>[-\w\u{0080}-\u{FFFF}]+)\s*(?:(?<operator>\W?=)\s*(?<value>.+?)\s*(?<i>i)?\s*)?\]/gu,
+export const TOKENS = {
+	attribute: /\[\s*(?:(?<namespace>\*|[-\w]*)\|)?(?<name>[-\w\u{0080}-\u{FFFF}]+)\s*(?:(?<operator>\W?=)\s*(?<value>.+?)\s*(?<caseSensitive>[iIsS])?\s*)?\]/gu,
 	id: /#(?<name>(?:[-\w\u{0080}-\u{FFFF}]|\\.)+)/gu,
@@ -14,5 +14,11 @@ class: /\.(?<name>(?:[-\w\u{0080}-\u{FFFF}]|\\.)+)/gu,
 const TOKENS_WITH_STRINGS = new Set([...TOKENS_WITH_PARENS, "attribute"]);
-const TRIM_TOKENS = new Set(["combinator", "comma"]);
-const RECURSIVE_PSEUDO_CLASSES = new Set(["not", "is", "where", "has", "matches", "-moz-any", "-webkit-any"]);
+export const TRIM_TOKENS = new Set(["combinator", "comma"]);
+export const RECURSIVE_PSEUDO_CLASSES = new Set(["not", "is", "where", "has", "matches", "-moz-any", "-webkit-any", "nth-child", "nth-last-child"]);
 
+export const RECURSIVE_PSEUDO_CLASSES_ARGS = {
+	"nth-child": /(?<index>[\dn+-]+)\s+of\s+(?<subtree>.+)/
+}
+
+RECURSIVE_PSEUDO_CLASSES["nth-last-child"] = RECURSIVE_PSEUDO_CLASSES_ARGS["nth-child"];
+
 const TOKENS_FOR_RESTORE = Object.assign({}, TOKENS);
@@ -204,6 +210,2 @@ TOKENS_FOR_RESTORE["pseudo-element"] = RegExp(TOKENS["pseudo-element"].source.replace("(?<argument>¶+)", "(?<argument>.+?)"), "gu")
 
-			if (left.length === 0 || right.length === 0) {
-				throw new Error(`Combinator ${token.content} used in selector ${left.length === 0? "start" : "end"}`);
-			}
-
 			return {
@@ -218,2 +220,6 @@ type: "complex",
 
+	if (tokens.length === 0) {
+		return null;
+	}
+
 	// If we're here, there are no combinators, so it's just a list
@@ -228,2 +234,6 @@ return tokens.length === 1? tokens[0] : {
 export function walk(node, callback, o, parent) {
+	if (!node) {
+		return;
+	}
+
 	if (node.type === "complex") {
@@ -262,4 +272,19 @@ walk(node.left, callback, o, node);
 		walk(ast, node => {
-			if (node.type === "pseudo-class" && node.argument && RECURSIVE_PSEUDO_CLASSES.has(node.name)) {
-				node.subtree = parse(node.argument, {recursive: true, list: true});
+			if (node.type === "pseudo-class" && node.argument) {
+				if (RECURSIVE_PSEUDO_CLASSES.has(node.name)) {
+					let argument = node.argument;
+					const childArg = RECURSIVE_PSEUDO_CLASSES_ARGS[node.name];
+					if (childArg) {
+						const match = childArg.exec(argument);
+						if (!match) {
+							return;
+						}
+
+						Object.assign(node, match.groups);
+						argument = match.groups.subtree;
+					}
+					if (argument) {
+						node.subtree = parse(argument, {recursive: true, list: true});
+					}
+				}
 			}
@@ -266,0 +291,0 @@ });

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Improved metrics

Total package byte prevSize

111590

increased by100.72%

Number of package files

21

increased by75%

Lines of code

2208

increased by94.71%

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0

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Worsened metrics

Dev dependency count

2

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1

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