eslint-plugin-regexp
Version:
ESLint plugin for finding RegExp mistakes and RegExp style guide violations.
74 lines (73 loc) • 2.82 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
exports.baseParseReplacements = exports.parseReplacementsForString = void 0;
function parseReplacementsForString(text) {
return baseParseReplacements([...text].map((s) => ({ value: s })), () => ({}));
}
exports.parseReplacementsForString = parseReplacementsForString;
function baseParseReplacements(chars, getData) {
const elements = [];
let token;
let index = 0;
while ((token = chars[index++])) {
if (token.value === "$") {
const next = chars[index++];
if (next) {
if (next.value === "$" ||
next.value === "&" ||
next.value === "`" ||
next.value === "'") {
elements.push(Object.assign({ type: "DollarElement", kind: next.value }, getData(token, next)));
continue;
}
if (parseNumberRef(token, next)) {
continue;
}
if (parseNamedRef(token, next)) {
continue;
}
index--;
}
}
elements.push(Object.assign({ type: "CharacterElement", value: token.value }, getData(token, token)));
}
return elements;
function parseNumberRef(dollarToken, startToken) {
if (!/^\d$/u.test(startToken.value)) {
return false;
}
if (startToken.value === "0") {
const next = chars[index++];
if (next) {
if (/^[1-9]$/u.test(next.value)) {
const ref = Number(next.value);
elements.push(Object.assign({ type: "ReferenceElement", ref, refText: startToken.value + next.value }, getData(dollarToken, next)));
return true;
}
index--;
}
return false;
}
const ref = Number(startToken.value);
elements.push(Object.assign({ type: "ReferenceElement", ref, refText: startToken.value }, getData(dollarToken, startToken)));
return true;
}
function parseNamedRef(dollarToken, startToken) {
if (startToken.value !== "<") {
return false;
}
const startIndex = index;
let t;
while ((t = chars[index++])) {
if (t.value === ">") {
const refChars = chars.slice(startIndex, index - 1);
const ref = refChars.map((c) => c.value).join("");
elements.push(Object.assign({ type: "ReferenceElement", ref, refText: ref }, getData(dollarToken, t)));
return true;
}
}
index = startIndex;
return false;
}
}
exports.baseParseReplacements = baseParseReplacements;