95 lines
3 KiB
JavaScript
95 lines
3 KiB
JavaScript
"use strict";
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Object.defineProperty(exports, "__esModule", { value: true });
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exports.parseReplacementsForString = parseReplacementsForString;
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exports.baseParseReplacements = baseParseReplacements;
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function parseReplacementsForString(text) {
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return baseParseReplacements([...text].map((s) => ({ value: s })), () => ({}));
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}
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function baseParseReplacements(chars, getData) {
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const elements = [];
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let token;
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let index = 0;
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while ((token = chars[index++])) {
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if (token.value === "$") {
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const next = chars[index++];
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if (next) {
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if (next.value === "$" ||
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next.value === "&" ||
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next.value === "`" ||
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next.value === "'") {
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elements.push({
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type: "DollarElement",
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kind: next.value,
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...getData(token, next),
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});
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continue;
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}
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if (parseNumberRef(token, next)) {
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continue;
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}
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if (parseNamedRef(token, next)) {
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continue;
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}
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index--;
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}
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}
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elements.push({
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type: "CharacterElement",
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value: token.value,
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...getData(token, token),
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});
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}
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return elements;
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function parseNumberRef(dollarToken, startToken) {
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if (!/^\d$/u.test(startToken.value)) {
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return false;
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}
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if (startToken.value === "0") {
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const next = chars[index++];
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if (next) {
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if (/^[1-9]$/u.test(next.value)) {
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const ref = Number(next.value);
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elements.push({
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type: "ReferenceElement",
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ref,
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refText: startToken.value + next.value,
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...getData(dollarToken, next),
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});
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return true;
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}
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index--;
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}
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return false;
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}
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const ref = Number(startToken.value);
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elements.push({
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type: "ReferenceElement",
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ref,
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refText: startToken.value,
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...getData(dollarToken, startToken),
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});
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return true;
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}
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function parseNamedRef(dollarToken, startToken) {
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if (startToken.value !== "<") {
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return false;
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}
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const startIndex = index;
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let t;
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while ((t = chars[index++])) {
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if (t.value === ">") {
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const refChars = chars.slice(startIndex, index - 1);
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const ref = refChars.map((c) => c.value).join("");
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elements.push({
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type: "ReferenceElement",
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ref,
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refText: ref,
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...getData(dollarToken, t),
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});
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return true;
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}
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}
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index = startIndex;
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return false;
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}
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}
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