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parsel-js

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parsel-js - npm Package Compare versions

Comparing version

to
1.0.1

build.js

5

package.json
{
"name": "parsel-js",
"version": "1.0.0",
"version": "1.0.1",
"description": "A tiny, permissive CSS selector parser",
"main": "parsel.js",
"scripts": {
"test": "open test.html"
"test": "open test.html",
"build": "node build.js"
},

@@ -9,0 +10,0 @@ "repository": {

0

parsel_aborted.js

@@ -0,0 +0,0 @@ /**

@@ -115,2 +115,6 @@ const TOKENS = {

export function tokenize (selector) {
if (!selector) {
return null;
}
selector = selector.trim(); // prevent leading/trailing whitespace be interpreted as combinators

@@ -132,3 +136,3 @@

selector = selector.substring(0, start) + "(" + "¶".repeat(str.length - 2) + ")" + selector.substring(start + str.length);
offset += start + str.length;
offset = start + str.length;
}

@@ -168,3 +172,3 @@

if (list && tokens.find(t => t.type === "comma")) {
let list = [], temp = [];
let selectors = [], temp = [];

@@ -177,3 +181,3 @@ for (let i=0; i<tokens.length; i++) {

list.push(nestTokens(temp, {list: false}));
selectors.push(nestTokens(temp, {list: false}));
temp.length = 0;

@@ -190,6 +194,6 @@ }

else {
list.push(nestTokens(temp, {list: false}));
selectors.push(nestTokens(temp, {list: false}));
}
return { type: "list", list };
return { type: "list", list: selectors };
}

@@ -220,3 +224,3 @@

type: "compound",
list: tokens
list: [...tokens] // clone to avoid pointers messing up the AST
};

@@ -226,17 +230,17 @@ }

// Traverse an AST (or part thereof), in depth-first order
export function walk(node, callback, {subtree = false} = {}) {
export function walk(node, callback, o, parent) {
if (node.type === "complex") {
walk(node.left, callback);
walk(node.right, callback);
walk(node.left, callback, o, node);
walk(node.right, callback, o, node);
}
else if (node.type === "compound") {
for (let n of node.list) {
walk(n, callback);
walk(n, callback, o, node);
}
}
else if (node.subtree && subtree) {
walk(node.subtree, callback);
else if (node.subtree && o && o.subtree) {
walk(node.subtree, callback, o, node);
}
callback(node);
callback(node, parent);
}

@@ -252,2 +256,7 @@

let tokens = tokenize(selector);
if (!tokens) {
return null;
}
let ast = nestTokens(tokens, {list});

@@ -269,3 +278,3 @@

return specificity[0] * base ** 2 + specificity[1] * base + specificity[0];
return specificity[0] * base ** 2 + specificity[1] * base + specificity[2];
}

@@ -293,2 +302,6 @@

if (!ast) {
return null;
}
if (ast.type === "list") {

@@ -320,3 +333,3 @@ // Return max specificity

else if (node.type === "pseudo-class" && node.name !== "where") {
if (RECURSIVE_PSEUDO_CLASSES.has(node.name)) {
if (RECURSIVE_PSEUDO_CLASSES.has(node.name) && node.subtree) {
// Max of argument list

@@ -323,0 +336,0 @@ let sub = specificity(node.subtree);

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