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Diffstat (limited to 'node_modules/css-select/lib/compile.js')
-rw-r--r-- | node_modules/css-select/lib/compile.js | 115 |
1 files changed, 115 insertions, 0 deletions
diff --git a/node_modules/css-select/lib/compile.js b/node_modules/css-select/lib/compile.js new file mode 100644 index 0000000..e2f4795 --- /dev/null +++ b/node_modules/css-select/lib/compile.js @@ -0,0 +1,115 @@ +"use strict"; +var __importDefault = (this && this.__importDefault) || function (mod) { + return (mod && mod.__esModule) ? mod : { "default": mod }; +}; +Object.defineProperty(exports, "__esModule", { value: true }); +exports.compileToken = exports.compileUnsafe = exports.compile = void 0; +var css_what_1 = require("css-what"); +var boolbase_1 = require("boolbase"); +var sort_1 = __importDefault(require("./sort")); +var procedure_1 = require("./procedure"); +var general_1 = require("./general"); +var subselects_1 = require("./pseudo-selectors/subselects"); +/** + * Compiles a selector to an executable function. + * + * @param selector Selector to compile. + * @param options Compilation options. + * @param context Optional context for the selector. + */ +function compile(selector, options, context) { + var next = compileUnsafe(selector, options, context); + return (0, subselects_1.ensureIsTag)(next, options.adapter); +} +exports.compile = compile; +function compileUnsafe(selector, options, context) { + var token = typeof selector === "string" ? (0, css_what_1.parse)(selector, options) : selector; + return compileToken(token, options, context); +} +exports.compileUnsafe = compileUnsafe; +function includesScopePseudo(t) { + return (t.type === "pseudo" && + (t.name === "scope" || + (Array.isArray(t.data) && + t.data.some(function (data) { return data.some(includesScopePseudo); })))); +} +var DESCENDANT_TOKEN = { type: "descendant" }; +var FLEXIBLE_DESCENDANT_TOKEN = { + type: "_flexibleDescendant", +}; +var SCOPE_TOKEN = { type: "pseudo", name: "scope", data: null }; +/* + * CSS 4 Spec (Draft): 3.3.1. Absolutizing a Scope-relative Selector + * http://www.w3.org/TR/selectors4/#absolutizing + */ +function absolutize(token, _a, context) { + var adapter = _a.adapter; + // TODO Use better check if the context is a document + var hasContext = !!(context === null || context === void 0 ? void 0 : context.every(function (e) { + var parent = adapter.isTag(e) && adapter.getParent(e); + return e === subselects_1.PLACEHOLDER_ELEMENT || (parent && adapter.isTag(parent)); + })); + for (var _i = 0, token_1 = token; _i < token_1.length; _i++) { + var t = token_1[_i]; + if (t.length > 0 && (0, procedure_1.isTraversal)(t[0]) && t[0].type !== "descendant") { + // Don't continue in else branch + } + else if (hasContext && !t.some(includesScopePseudo)) { + t.unshift(DESCENDANT_TOKEN); + } + else { + continue; + } + t.unshift(SCOPE_TOKEN); + } +} +function compileToken(token, options, context) { + var _a; + token = token.filter(function (t) { return t.length > 0; }); + token.forEach(sort_1.default); + context = (_a = options.context) !== null && _a !== void 0 ? _a : context; + var isArrayContext = Array.isArray(context); + var finalContext = context && (Array.isArray(context) ? context : [context]); + absolutize(token, options, finalContext); + var shouldTestNextSiblings = false; + var query = token + .map(function (rules) { + if (rules.length >= 2) { + var first = rules[0], second = rules[1]; + if (first.type !== "pseudo" || first.name !== "scope") { + // Ignore + } + else if (isArrayContext && second.type === "descendant") { + rules[1] = FLEXIBLE_DESCENDANT_TOKEN; + } + else if (second.type === "adjacent" || + second.type === "sibling") { + shouldTestNextSiblings = true; + } + } + return compileRules(rules, options, finalContext); + }) + .reduce(reduceRules, boolbase_1.falseFunc); + query.shouldTestNextSiblings = shouldTestNextSiblings; + return query; +} +exports.compileToken = compileToken; +function compileRules(rules, options, context) { + var _a; + return rules.reduce(function (previous, rule) { + return previous === boolbase_1.falseFunc + ? boolbase_1.falseFunc + : (0, general_1.compileGeneralSelector)(previous, rule, options, context, compileToken); + }, (_a = options.rootFunc) !== null && _a !== void 0 ? _a : boolbase_1.trueFunc); +} +function reduceRules(a, b) { + if (b === boolbase_1.falseFunc || a === boolbase_1.trueFunc) { + return a; + } + if (a === boolbase_1.falseFunc || b === boolbase_1.trueFunc) { + return b; + } + return function combine(elem) { + return a(elem) || b(elem); + }; +} |