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70 lines
1.7 KiB
70 lines
1.7 KiB
"use strict"; |
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Object.defineProperty(exports, "__esModule", { |
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value: true |
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}); |
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exports.canSkipRegexpu = canSkipRegexpu; |
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exports.generateRegexpuOptions = generateRegexpuOptions; |
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exports.transformFlags = transformFlags; |
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var _features = require("./features"); |
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function generateRegexpuOptions(toTransform) { |
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const feat = (name, ok = "transform") => { |
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return (0, _features.hasFeature)(toTransform, _features.FEATURES[name]) ? ok : false; |
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}; |
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return { |
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unicodeFlag: feat("unicodeFlag"), |
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unicodeSetsFlag: feat("unicodeSetsFlag") || feat("unicodeSetsFlag_syntax", "parse"), |
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dotAllFlag: feat("dotAllFlag"), |
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unicodePropertyEscapes: feat("unicodePropertyEscape"), |
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namedGroups: feat("namedCaptureGroups"), |
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onNamedGroup: () => {} |
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}; |
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} |
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function canSkipRegexpu(node, options) { |
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const { |
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flags, |
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pattern |
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} = node; |
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if (flags.includes("v")) { |
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if (options.unicodeSetsFlag === "transform") return false; |
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} |
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if (flags.includes("u")) { |
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if (options.unicodeFlag === "transform") return false; |
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if (options.unicodePropertyEscapes === "transform" && /\\[pP]{/.test(pattern)) { |
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return false; |
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} |
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} |
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if (flags.includes("s")) { |
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if (options.dotAllFlag === "transform") return false; |
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} |
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if (options.namedGroups === "transform" && /\(\?<(?![=!])/.test(pattern)) { |
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return false; |
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} |
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return true; |
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} |
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function transformFlags(regexpuOptions, flags) { |
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if (regexpuOptions.unicodeSetsFlag === "transform") { |
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flags = flags.replace("v", "u"); |
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} |
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if (regexpuOptions.unicodeFlag === "transform") { |
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flags = flags.replace("u", ""); |
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} |
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if (regexpuOptions.dotAllFlag === "transform") { |
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flags = flags.replace("s", ""); |
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} |
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return flags; |
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} |