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Merge pull request #635 from pbakaus/fix/615-grid-1d-rails

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Fix: stop flagging 1D dashed rules as grid backgrounds (#615)
This commit is contained in:
Abdul Wahab
2026-08-24 04:17:50 +05:00
committed by GitHub
parent d07edadafb 7ddcd533a4
commit 26bb3d3af5
5 changed files with 73 additions and 24 deletions
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cli/engine/detect-antipatterns-browser.js
+6 -10
View File
@@ -1963,20 +1963,19 @@ function scanCssTextForGlow(content) {
return results;
}
// Decorative grid or line-field backgrounds drawn with hairline
// Decorative two-axis grid backgrounds drawn with hairline
// linear-gradient layers tiled by a fixed pixel cell. Shared by the HTML
// pattern pass and the regex source engine so standalone CSS, component
// styles, and inline styles receive the same coverage. Both signals must
// co-occur in one declaration block; unrelated rules must not add up across
// the file. Returns [{ index, snippet }], capped at one finding per source to
// match the page-level HTML check's existing behavior.
// the file. A single hairline is a line, divider, or rail, not a grid, even
// when tiled by a 2D px cell. Returns [{ index, snippet }], capped at one
// finding per source to match the page-level HTML check's existing behavior.
function scanCssTextForGridBackground(content) {
const hairlineRe = /\b\d{1,3}px\s*,\s*transparent\s+\d{1,3}px/gi;
const invertedHairlineRe = /transparent\s+calc\(100%\s*-\s*\d{1,3}px\)/gi;
const sizeDeclPxRe = /background-size\s*:[^;{}"']*\b\d{1,3}px\b/i;
const sizeDeclPxPairRe = /background-size\s*:[^;{}"']*\b\d{1,3}px\s+\d{1,3}px/i;
const shorthandPxAnyRe = /\/\s*\d{1,3}px\b/;
const shorthandPxPairRe = /\/\s*\d{1,3}px\s+\d{1,3}px/;
const bgDeclRe = /\bbackground(?:-image)?\s*:\s*([^;{}"']*)/gi;
const blockRe = /\{([^{}]*)\}|style\s*=\s*"([^"]*)"|style\s*=\s*'([^']*)'/gi;
let blk;
@@ -1993,13 +1992,10 @@ function scanCssTextForGridBackground(content) {
}
if (hairlineCount === 0) continue;
const hasPxCell = sizeDeclPxRe.test(block) || shorthandPxAnyRe.test(bgJoined);
const hasPxPairCell = sizeDeclPxPairRe.test(block) || shorthandPxPairRe.test(bgJoined);
if ((hairlineCount >= 2 && hasPxCell) || hasPxPairCell) {
if (hairlineCount >= 2 && hasPxCell) {
return [{
index: blk.index,
snippet: hairlineCount >= 2
? 'two-axis grid-line gradient background'
: 'px-tiled hairline line-field background',
snippet: 'two-axis grid-line gradient background',
}];
}
}
cli/engine/rules/checks.mjs
+6 -10
View File
@@ -721,20 +721,19 @@ function scanCssTextForGlow(content) {
return results;
}
// Decorative grid or line-field backgrounds drawn with hairline
// Decorative two-axis grid backgrounds drawn with hairline
// linear-gradient layers tiled by a fixed pixel cell. Shared by the HTML
// pattern pass and the regex source engine so standalone CSS, component
// styles, and inline styles receive the same coverage. Both signals must
// co-occur in one declaration block; unrelated rules must not add up across
// the file. Returns [{ index, snippet }], capped at one finding per source to
// match the page-level HTML check's existing behavior.
// the file. A single hairline is a line, divider, or rail, not a grid, even
// when tiled by a 2D px cell. Returns [{ index, snippet }], capped at one
// finding per source to match the page-level HTML check's existing behavior.
function scanCssTextForGridBackground(content) {
const hairlineRe = /\b\d{1,3}px\s*,\s*transparent\s+\d{1,3}px/gi;
const invertedHairlineRe = /transparent\s+calc\(100%\s*-\s*\d{1,3}px\)/gi;
const sizeDeclPxRe = /background-size\s*:[^;{}"']*\b\d{1,3}px\b/i;
const sizeDeclPxPairRe = /background-size\s*:[^;{}"']*\b\d{1,3}px\s+\d{1,3}px/i;
const shorthandPxAnyRe = /\/\s*\d{1,3}px\b/;
const shorthandPxPairRe = /\/\s*\d{1,3}px\s+\d{1,3}px/;
const bgDeclRe = /\bbackground(?:-image)?\s*:\s*([^;{}"']*)/gi;
const blockRe = /\{([^{}]*)\}|style\s*=\s*"([^"]*)"|style\s*=\s*'([^']*)'/gi;
let blk;
@@ -751,13 +750,10 @@ function scanCssTextForGridBackground(content) {
}
if (hairlineCount === 0) continue;
const hasPxCell = sizeDeclPxRe.test(block) || shorthandPxAnyRe.test(bgJoined);
const hasPxPairCell = sizeDeclPxPairRe.test(block) || shorthandPxPairRe.test(bgJoined);
if ((hairlineCount >= 2 && hasPxCell) || hasPxPairCell) {
if (hairlineCount >= 2 && hasPxCell) {
return [{
index: blk.index,
snippet: hairlineCount >= 2
? 'two-axis grid-line gradient background'
: 'px-tiled hairline line-field background',
snippet: 'two-axis grid-line gradient background',
}];
}
}