iter(g229): 混色浓度令牌化并入视觉棘轮
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@@ -66,10 +66,20 @@ export const KIND_META = [
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label: '边框色字面值',
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hint: 'border/border-color 写死色值(rgba()/#hex),组件轮廓用 --ua-color-border、分割线用 --ua-border-subtle',
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},
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{
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key: 'mix-literal',
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label: '混色浓度字面值',
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hint: 'color-mix 的混入浓度写死百分比,应改用 --ua-alpha-* 六档(soft/tint/line/mid/strong/heavy)',
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},
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];
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/*** 作用:需要扫描的 CSS 属性白名单(其余属性本轮不动;用白名单顺带避开伪类选择器误判) ***/
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const SCAN_PROPS = new Set([
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'background-image',
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'background',
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'color',
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'fill',
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'stroke',
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'font-size',
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'transition',
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'animation',
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@@ -237,6 +247,74 @@ const LEADING_TOKENS = new Map([
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/*** 作用:下拉类 z-index 字面值集合(历史上下拉/气泡弹层用的 20/30/40 档,统一归 --ua-z-dropdown) ***/
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const Z_DROPDOWN_LIKE = new Set(['20', '30', '40']);
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/*** 作用:混色浓度字面值 → --ua-alpha-* 档位(近档就近收敛:12→10、16/20/24→18、40→45、65/80→70,Δ≤6) ***/
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const MIX_TOKENS = new Map([
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['10', 'var(--ua-alpha-soft)'],
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['12', 'var(--ua-alpha-soft)'],
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['16', 'var(--ua-alpha-tint)'],
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['18', 'var(--ua-alpha-tint)'],
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['20', 'var(--ua-alpha-tint)'],
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['24', 'var(--ua-alpha-tint)'],
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['30', 'var(--ua-alpha-line)'],
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['40', 'var(--ua-alpha-mid)'],
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['45', 'var(--ua-alpha-mid)'],
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['55', 'var(--ua-alpha-strong)'],
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['65', 'var(--ua-alpha-heavy)'],
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['70', 'var(--ua-alpha-heavy)'],
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['80', 'var(--ua-alpha-heavy)'],
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]);
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/*** 作用:提取值里所有 color-mix(...) 块(配平括号,嵌套 color-mix 逐层都算一条);返回全块文本与首色参(in srgb 之后的第一个顶层参数) ***/
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function extractMixes(value) {
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const out = [];
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const src = String(value);
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for (let i = src.indexOf('color-mix('); i !== -1; i = src.indexOf('color-mix(', i + 1)) {
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let depth = 0;
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let end = -1;
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for (let k = i + 'color-mix'.length; k < src.length; k++) { // 从函数名后的 ( 起配平
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if (src[k] === '(') depth++;
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else if (src[k] === ')') { depth--; if (!depth) { end = k; break; } }
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}
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if (end === -1) break; // 未闭合:整值残缺,交给浏览器报错
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const block = src.slice(i, end + 1);
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const inner = block.slice('color-mix('.length, -1); // 去掉外壳与收尾括号
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const args = splitTopLevel(inner).map((s) => s.trim());
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out.push({ block, start: i, arg1: args[1] ?? '' }); // args[0] 是插值方法(in srgb),首色参跟在其后
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}
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return out;
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}
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/*** 作用:首色参末尾的混入浓度:已是 --ua-alpha-* 令牌返回 null;写死百分比返回数字字符串(渐变停靠位不在 color-mix 首参末尾,天然豁免) ***/
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function mixAmount(arg1) {
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const s = String(arg1).trim();
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if (/var\(--ua-alpha-[\w-]+\)\s*$/.test(s)) return null; // 已令牌化
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const lit = s.match(/(\d+(?:\.\d+)?)%\s*$/);
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return lit ? lit[1] : null;
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}
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/*** 作用:迁移单条声明里的所有 color-mix 浓度字面量:逐块把首色参尾部的 NN% 换成 --ua-alpha-* 档位(表外浓度保留交人工归档) ***/
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function migrateMix(core) {
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const src = String(core);
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const mixes = extractMixes(src);
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if (!mixes.length) return null;
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let hits = 0;
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let out = '';
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let cursor = 0;
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for (const { block, start, arg1 } of mixes) {
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const amt = mixAmount(arg1);
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const token = amt !== null ? MIX_TOKENS.get(amt) : null;
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if (!token) continue;
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const nextArg1 = arg1 ? arg1.replace(/(\d+(?:\.\d+)?)%\s*$/, token) : arg1; // 复用原有的「色 浓度」间隔空格
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const nextBlock = nextArg1 === arg1 || !arg1 ? block : block.replace(arg1, nextArg1); // arg1 是 block 的精确子串,整串替换安全
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hits++;
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out += src.slice(cursor, start) + nextBlock;
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cursor = start + block.length;
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}
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if (!hits) return null;
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out += src.slice(cursor);
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return { kind: 'mix-literal', value: out };
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}
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/*** 作用:压缩空白,便于用稳定字符串比对(不改语义) ***/
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export function squash(value) {
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return String(value).replace(/\s+/g, ' ').trim();
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@@ -262,7 +340,7 @@ export function blankComments(src) {
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/*** 作用:逐条产出「属性 + 值」及其在原文中的偏移;只认白名单属性且必须以分号收尾(避开伪类选择器) ***/
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export function eachDeclaration(code) {
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const re = /(border-top-color|border-right-color|border-bottom-color|border-left-color|border-color|border-top|border-right|border-bottom|border-left|border|padding-top|padding-right|padding-bottom|padding-left|padding|margin-top|margin-right|margin-bottom|margin-left|margin|row-gap|column-gap|gap|font-weight|line-height|z-index|min-height|max-height|height|transition-duration|animation-duration|transition|animation|font-size|box-shadow|border-radius|outline)\s*:\s*([^;{}]*);/gi;
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const re = /(border-top-color|border-right-color|border-bottom-color|border-left-color|border-color|border-top|border-right|border-bottom|border-left|border|padding-top|padding-right|padding-bottom|padding-left|padding|margin-top|margin-right|margin-bottom|margin-left|margin|row-gap|column-gap|gap|font-weight|line-height|z-index|min-height|max-height|height|transition-duration|animation-duration|transition|animation|font-size|box-shadow|border-radius|outline|background-image|background|color|fill|stroke)\s*:\s*([^;{}]*);/gi;
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const list = [];
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for (const m of code.matchAll(re)) {
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const prop = m[1].toLowerCase();
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@@ -430,7 +508,7 @@ export function migrateDeclaration(prop, rawValue) {
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} else if (prop === 'z-index') {
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result = migrateZ(core);
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} else {
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result = migrateBorder(prop, core); // 边框类:只收敛纯黑 rgba 边
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result = migrateMix(core) ?? migrateBorder(prop, core); // 其余属性:先收敛 color-mix 浓度,再收敛纯黑 rgba 边
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}
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if (!result) return null;
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return { kind: result.kind, value: result.value + tail };
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@@ -504,6 +582,9 @@ function detect(prop, rawValue, key) {
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const stripped = value.replace(/var\(--ua-[\w-]+\)/g, ' '); // 已是令牌的色先剔除
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return /(#[0-9a-f]{3,8}\b|rgba?\(|hsla?\()/i.test(stripped) ? 1 : 0;
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}
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if (key === 'mix-literal') {
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return extractMixes(value).filter(({ arg1 }) => mixAmount(arg1) !== null).length; // 只认 color-mix 块内首色参的写死浓度;渐变停靠位与几何百分比天然不在口径内
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}
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return 0;
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}
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