import jsTokens from "js-tokens"; //#region src/js-tokens.ts const FILL_COMMENT = " "; function stripLiteralFromToken(token, fillChar, filter) { if (token.type === "SingleLineComment") return FILL_COMMENT.repeat(token.value.length); if (token.type === "MultiLineComment") return token.value.replace(/[^\n]/g, FILL_COMMENT); if (token.type === "StringLiteral") { if (!token.closed) return token.value; const body = token.value.slice(1, -1); if (filter(body)) return token.value[0] + fillChar.repeat(body.length) + token.value[token.value.length - 1]; } if (token.type === "NoSubstitutionTemplate") { const body = token.value.slice(1, -1); if (filter(body)) return `\`${body.replace(/[^\n]/g, fillChar)}\``; } if (token.type === "RegularExpressionLiteral") { const body = token.value; if (filter(body)) return body.replace(/\/(.*)\/(\w?)$/g, (_, $1, $2) => `/${fillChar.repeat($1.length)}/${$2}`); } if (token.type === "TemplateHead") { const body = token.value.slice(1, -2); if (filter(body)) return `\`${body.replace(/[^\n]/g, fillChar)}\${`; } if (token.type === "TemplateTail") { const body = token.value.slice(0, -2); if (filter(body)) return `}${body.replace(/[^\n]/g, fillChar)}\``; } if (token.type === "TemplateMiddle") { const body = token.value.slice(1, -2); if (filter(body)) return `}${body.replace(/[^\n]/g, fillChar)}\${`; } return token.value; } function optionsWithDefaults(options) { return { fillChar: options?.fillChar ?? " ", filter: options?.filter ?? (() => true) }; } /** * Strip literal from code. */ function stripLiteral(code, options) { let result = ""; const _options = optionsWithDefaults(options); for (const token of jsTokens(code, { jsx: false })) result += stripLiteralFromToken(token, _options.fillChar, _options.filter); return result; } /** * Strip literal from code, return more detailed information. */ function stripLiteralDetailed(code, options) { let result = ""; const tokens = []; const _options = optionsWithDefaults(options); for (const token of jsTokens(code, { jsx: false })) { tokens.push(token); result += stripLiteralFromToken(token, _options.fillChar, _options.filter); } return { result, tokens }; } //#endregion export { stripLiteral, stripLiteralDetailed, stripLiteralDetailed as stripLiteralJsTokens };