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fix: selectors starting with hyphen #96

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fix: selectors starting with hyphen #96

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f26bca5
Test selectors starting with hyphen
acemir Jan 23, 2026
e13e6a4
Fix selectors starting with hyphen
acemir Jan 23, 2026
6225fa0
Add changeset
acemir Jan 26, 2026
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5 changes: 5 additions & 0 deletions .changeset/fair-dolphins-type.md
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Original file line number Diff line number Diff line change
@@ -0,0 +1,5 @@
---
"@acemir/cssom": patch
---

fix: selectors starting with hyphen
6 changes: 3 additions & 3 deletions lib/parse.js
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Original file line number Diff line number Diff line change
Expand Up @@ -925,14 +925,14 @@ CSSOM.parse = function parse(token, opts, errorHandler) {
}
}
// Match type selector with optional namespace: [namespace|]identifier
else if (i < len && (isIdentStart(selector[i]) || selector[i] === '\\' || selector[i] === '*' || selector[i] === '|')) {
else if (i < len && (isIdentStart(selector[i]) || selector[i] === '\\' || selector[i] === '*' || selector[i] === '|' || selector[i] === '-')) {
parseNamespace(); // Optional namespace prefix

if (i < len && selector[i] === '*') {
i++; // Universal selector
hasMatchedComponent = true;
matched = true;
} else if (i < len && (isIdentStart(selector[i]) || selector[i] === '\\')) {
} else if (i < len && (isIdentStart(selector[i]) || selector[i] === '\\' || selector[i] === '-')) {
if (parseIdentifier()) {
hasMatchedComponent = true;
matched = true;
Expand Down Expand Up @@ -2054,7 +2054,7 @@ CSSOM.parse = function parse(token, opts, errorHandler) {

// Helper functions to check character types
function isSelectorStartChar(char) {
return '.:#&*['.indexOf(char) !== -1;
return '.:#&*[\\'.indexOf(char) !== -1;
}

function isWhitespaceChar(char) {
Expand Down
48 changes: 48 additions & 0 deletions spec/parse.spec.js
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Original file line number Diff line number Diff line change
Expand Up @@ -4333,6 +4333,54 @@ var VALIDATION_TESTS = [
return result;
})()
},
{
input: "-test {} \\-test {} --test {} \\--test {}",
result: (function() {
var result = {
cssRules: [
{
cssRules: [],
selectorText: "-test",
style: {
length: 0
},
parentRule: null,
},
{
cssRules: [],
selectorText: "-test",
style: {
length: 0
},
parentRule: null,
},
{
cssRules: [],
selectorText: "--test",
style: {
length: 0
},
parentRule: null,
},
{
cssRules: [],
selectorText: "--test",
style: {
length: 0
},
parentRule: null,
}
],
parentStyleSheet: null
};
result.cssRules[0].parentStyleSheet = result.cssRules[1].parentStyleSheet = result.cssRules[2].parentStyleSheet = result.cssRules[3].parentStyleSheet = result;
result.cssRules[0].style.parentRule = result.cssRules[0];
result.cssRules[1].style.parentRule = result.cssRules[1];
result.cssRules[2].style.parentRule = result.cssRules[2];
result.cssRules[3].style.parentRule = result.cssRules[3];
return result;
})()
}
];

function itParse(input, result) {
Expand Down