site/node_modules/mathjax-full/js/input/tex/TexParser.js

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2024-10-14 06:09:33 +00:00
"use strict";
var __values = (this && this.__values) || function(o) {
var s = typeof Symbol === "function" && Symbol.iterator, m = s && o[s], i = 0;
if (m) return m.call(o);
if (o && typeof o.length === "number") return {
next: function () {
if (o && i >= o.length) o = void 0;
return { value: o && o[i++], done: !o };
}
};
throw new TypeError(s ? "Object is not iterable." : "Symbol.iterator is not defined.");
};
var __read = (this && this.__read) || function (o, n) {
var m = typeof Symbol === "function" && o[Symbol.iterator];
if (!m) return o;
var i = m.call(o), r, ar = [], e;
try {
while ((n === void 0 || n-- > 0) && !(r = i.next()).done) ar.push(r.value);
}
catch (error) { e = { error: error }; }
finally {
try {
if (r && !r.done && (m = i["return"])) m.call(i);
}
finally { if (e) throw e.error; }
}
return ar;
};
var __spreadArray = (this && this.__spreadArray) || function (to, from, pack) {
if (pack || arguments.length === 2) for (var i = 0, l = from.length, ar; i < l; i++) {
if (ar || !(i in from)) {
if (!ar) ar = Array.prototype.slice.call(from, 0, i);
ar[i] = from[i];
}
}
return to.concat(ar || Array.prototype.slice.call(from));
};
var __importDefault = (this && this.__importDefault) || function (mod) {
return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
var ParseUtil_js_1 = __importDefault(require("./ParseUtil.js"));
var Stack_js_1 = __importDefault(require("./Stack.js"));
var TexError_js_1 = __importDefault(require("./TexError.js"));
var MmlNode_js_1 = require("../../core/MmlTree/MmlNode.js");
var TexParser = (function () {
function TexParser(_string, env, configuration) {
var e_1, _a;
this._string = _string;
this.configuration = configuration;
this.macroCount = 0;
this.i = 0;
this.currentCS = '';
var inner = env.hasOwnProperty('isInner');
var isInner = env['isInner'];
delete env['isInner'];
var ENV;
if (env) {
ENV = {};
try {
for (var _b = __values(Object.keys(env)), _c = _b.next(); !_c.done; _c = _b.next()) {
var id = _c.value;
ENV[id] = env[id];
}
}
catch (e_1_1) { e_1 = { error: e_1_1 }; }
finally {
try {
if (_c && !_c.done && (_a = _b.return)) _a.call(_b);
}
finally { if (e_1) throw e_1.error; }
}
}
this.configuration.pushParser(this);
this.stack = new Stack_js_1.default(this.itemFactory, ENV, inner ? isInner : true);
this.Parse();
this.Push(this.itemFactory.create('stop'));
}
Object.defineProperty(TexParser.prototype, "options", {
get: function () {
return this.configuration.options;
},
enumerable: false,
configurable: true
});
Object.defineProperty(TexParser.prototype, "itemFactory", {
get: function () {
return this.configuration.itemFactory;
},
enumerable: false,
configurable: true
});
Object.defineProperty(TexParser.prototype, "tags", {
get: function () {
return this.configuration.tags;
},
enumerable: false,
configurable: true
});
Object.defineProperty(TexParser.prototype, "string", {
get: function () {
return this._string;
},
set: function (str) {
this._string = str;
},
enumerable: false,
configurable: true
});
TexParser.prototype.parse = function (kind, input) {
return this.configuration.handlers.get(kind).parse(input);
};
TexParser.prototype.lookup = function (kind, symbol) {
return this.configuration.handlers.get(kind).lookup(symbol);
};
TexParser.prototype.contains = function (kind, symbol) {
return this.configuration.handlers.get(kind).contains(symbol);
};
TexParser.prototype.toString = function () {
var e_2, _a;
var str = '';
try {
for (var _b = __values(Array.from(this.configuration.handlers.keys())), _c = _b.next(); !_c.done; _c = _b.next()) {
var config = _c.value;
str += config + ': ' +
this.configuration.handlers.get(config) + '\n';
}
}
catch (e_2_1) { e_2 = { error: e_2_1 }; }
finally {
try {
if (_c && !_c.done && (_a = _b.return)) _a.call(_b);
}
finally { if (e_2) throw e_2.error; }
}
return str;
};
TexParser.prototype.Parse = function () {
var c;
while (this.i < this.string.length) {
c = this.getCodePoint();
this.i += c.length;
this.parse('character', [this, c]);
}
};
TexParser.prototype.Push = function (arg) {
if (arg instanceof MmlNode_js_1.AbstractMmlNode && arg.isInferred) {
this.PushAll(arg.childNodes);
}
else {
this.stack.Push(arg);
}
};
TexParser.prototype.PushAll = function (args) {
var e_3, _a;
try {
for (var args_1 = __values(args), args_1_1 = args_1.next(); !args_1_1.done; args_1_1 = args_1.next()) {
var arg = args_1_1.value;
this.stack.Push(arg);
}
}
catch (e_3_1) { e_3 = { error: e_3_1 }; }
finally {
try {
if (args_1_1 && !args_1_1.done && (_a = args_1.return)) _a.call(args_1);
}
finally { if (e_3) throw e_3.error; }
}
};
TexParser.prototype.mml = function () {
if (!this.stack.Top().isKind('mml')) {
return null;
}
var node = this.stack.Top().First;
this.configuration.popParser();
return node;
};
TexParser.prototype.convertDelimiter = function (c) {
var symbol = this.lookup('delimiter', c);
return symbol ? symbol.char : null;
};
TexParser.prototype.getCodePoint = function () {
var code = this.string.codePointAt(this.i);
return code === undefined ? '' : String.fromCodePoint(code);
};
TexParser.prototype.nextIsSpace = function () {
return !!this.string.charAt(this.i).match(/\s/);
};
TexParser.prototype.GetNext = function () {
while (this.nextIsSpace()) {
this.i++;
}
return this.getCodePoint();
};
TexParser.prototype.GetCS = function () {
var CS = this.string.slice(this.i).match(/^(([a-z]+) ?|[\uD800-\uDBFF].|.)/i);
if (CS) {
this.i += CS[0].length;
return CS[2] || CS[1];
}
else {
this.i++;
return ' ';
}
};
TexParser.prototype.GetArgument = function (_name, noneOK) {
switch (this.GetNext()) {
case '':
if (!noneOK) {
throw new TexError_js_1.default('MissingArgFor', 'Missing argument for %1', this.currentCS);
}
return null;
case '}':
if (!noneOK) {
throw new TexError_js_1.default('ExtraCloseMissingOpen', 'Extra close brace or missing open brace');
}
return null;
case '\\':
this.i++;
return '\\' + this.GetCS();
case '{':
var j = ++this.i, parens = 1;
while (this.i < this.string.length) {
switch (this.string.charAt(this.i++)) {
case '\\':
this.i++;
break;
case '{':
parens++;
break;
case '}':
if (--parens === 0) {
return this.string.slice(j, this.i - 1);
}
break;
}
}
throw new TexError_js_1.default('MissingCloseBrace', 'Missing close brace');
}
var c = this.getCodePoint();
this.i += c.length;
return c;
};
TexParser.prototype.GetBrackets = function (_name, def) {
if (this.GetNext() !== '[') {
return def;
}
var j = ++this.i, parens = 0;
while (this.i < this.string.length) {
switch (this.string.charAt(this.i++)) {
case '{':
parens++;
break;
case '\\':
this.i++;
break;
case '}':
if (parens-- <= 0) {
throw new TexError_js_1.default('ExtraCloseLooking', 'Extra close brace while looking for %1', '\']\'');
}
break;
case ']':
if (parens === 0) {
return this.string.slice(j, this.i - 1);
}
break;
}
}
throw new TexError_js_1.default('MissingCloseBracket', 'Could not find closing \']\' for argument to %1', this.currentCS);
};
TexParser.prototype.GetDelimiter = function (name, braceOK) {
var c = this.GetNext();
this.i += c.length;
if (this.i <= this.string.length) {
if (c === '\\') {
c += this.GetCS();
}
else if (c === '{' && braceOK) {
this.i--;
c = this.GetArgument(name).trim();
}
if (this.contains('delimiter', c)) {
return this.convertDelimiter(c);
}
}
throw new TexError_js_1.default('MissingOrUnrecognizedDelim', 'Missing or unrecognized delimiter for %1', this.currentCS);
};
TexParser.prototype.GetDimen = function (name) {
if (this.GetNext() === '{') {
var dimen = this.GetArgument(name);
var _a = __read(ParseUtil_js_1.default.matchDimen(dimen), 2), value = _a[0], unit = _a[1];
if (value) {
return value + unit;
}
}
else {
var dimen = this.string.slice(this.i);
var _b = __read(ParseUtil_js_1.default.matchDimen(dimen, true), 3), value = _b[0], unit = _b[1], length_1 = _b[2];
if (value) {
this.i += length_1;
return value + unit;
}
}
throw new TexError_js_1.default('MissingDimOrUnits', 'Missing dimension or its units for %1', this.currentCS);
};
TexParser.prototype.GetUpTo = function (_name, token) {
while (this.nextIsSpace()) {
this.i++;
}
var j = this.i;
var parens = 0;
while (this.i < this.string.length) {
var k = this.i;
var c = this.GetNext();
this.i += c.length;
switch (c) {
case '\\':
c += this.GetCS();
break;
case '{':
parens++;
break;
case '}':
if (parens === 0) {
throw new TexError_js_1.default('ExtraCloseLooking', 'Extra close brace while looking for %1', token);
}
parens--;
break;
}
if (parens === 0 && c === token) {
return this.string.slice(j, k);
}
}
throw new TexError_js_1.default('TokenNotFoundForCommand', 'Could not find %1 for %2', token, this.currentCS);
};
TexParser.prototype.ParseArg = function (name) {
return new TexParser(this.GetArgument(name), this.stack.env, this.configuration).mml();
};
TexParser.prototype.ParseUpTo = function (name, token) {
return new TexParser(this.GetUpTo(name, token), this.stack.env, this.configuration).mml();
};
TexParser.prototype.GetDelimiterArg = function (name) {
var c = ParseUtil_js_1.default.trimSpaces(this.GetArgument(name));
if (c === '') {
return null;
}
if (this.contains('delimiter', c)) {
return c;
}
throw new TexError_js_1.default('MissingOrUnrecognizedDelim', 'Missing or unrecognized delimiter for %1', this.currentCS);
};
TexParser.prototype.GetStar = function () {
var star = (this.GetNext() === '*');
if (star) {
this.i++;
}
return star;
};
TexParser.prototype.create = function (kind) {
var _a;
var rest = [];
for (var _i = 1; _i < arguments.length; _i++) {
rest[_i - 1] = arguments[_i];
}
return (_a = this.configuration.nodeFactory).create.apply(_a, __spreadArray([kind], __read(rest), false));
};
return TexParser;
}());
exports.default = TexParser;
//# sourceMappingURL=TexParser.js.map