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Commit 44a0f69a authored by NGPixel's avatar NGPixel
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feat: katex chemical equations support

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client/components/editor/editor-markdown.vue
View file @ 44a0f69a
......@@ -216,6 +216,7 @@ import mdMark from 'markdown-it-mark'
import mdFootnote from 'markdown-it-footnote'
import mdImsize from 'markdown-it-imsize'
import katex from 'katex'
import 'katex/dist/contrib/mhchem'
import twemoji from 'twemoji'
// Prism (Syntax Highlighting)
......
server/modules/rendering/markdown-katex/mhchem.js 0 → 100644
View file @ 44a0f69a
/* eslint-disable */
/* -*- Mode: Javascript; indent-tabs-mode:nil; js-indent-level: 2 -*- */
/* vim: set ts=2 et sw=2 tw=80: */
/*************************************************************
*
* KaTeX mhchem.js
*
* This file implements a KaTeX version of mhchem version 3.3.0.
* It is adapted from MathJax/extensions/TeX/mhchem.js
* It differs from the MathJax version as follows:
* 1. The interface is changed so that it can be called from KaTeX, not MathJax.
* 2. \rlap and \llap are replaced with \mathrlap and \mathllap.
* 3. Four lines of code are edited in order to use \raisebox instead of \raise.
* 4. The reaction arrow code is simplified. All reaction arrows are rendered
* using KaTeX extensible arrows instead of building non-extensible arrows.
* 5. \tripledash vertical alignment is slightly adjusted.
*
* This code, as other KaTeX code, is released under the MIT license.
*
* /*************************************************************
*
* MathJax/extensions/TeX/mhchem.js
*
* Implements the \ce command for handling chemical formulas
* from the mhchem LaTeX package.
*
* ---------------------------------------------------------------------
*
* Copyright (c) 2011-2015 The MathJax Consortium
* Copyright (c) 2015-2018 Martin Hensel
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
//
// Coding Style
// - use '' for identifiers that can by minified/uglified
// - use "" for strings that need to stay untouched
// version: "3.3.0" for MathJax and KaTeX
//
// This is the main function for handing the \ce and \pu commands.
// It takes the argument to \ce or \pu and returns the corresponding TeX string.
//
module.exports = function (tokens, stateMachine) {
// Recreate the argument string from KaTeX's array of tokens.
var str = "";
var expectedLoc = tokens[tokens.length - 1].loc.start
for (var i = tokens.length - 1; i >= 0; i--) {
if(tokens[i].loc.start > expectedLoc) {
// context.consumeArgs has eaten a space.
str += " ";
expectedLoc = tokens[i].loc.start;
}
str += tokens[i].text;
expectedLoc += tokens[i].text.length;
}
var tex = texify.go(mhchemParser.go(str, stateMachine));
return tex;
};
//
// Core parser for mhchem syntax (recursive)
//
/** @type {MhchemParser} */
var mhchemParser = {
//
// Parses mchem \ce syntax
//
// Call like
// go("H2O");
//
go: function (input, stateMachine) {
if (!input) { return []; }
if (stateMachine === undefined) { stateMachine = 'ce'; }
var state = '0';
//
// String buffers for parsing:
//
// buffer.a == amount
// buffer.o == element
// buffer.b == left-side superscript
// buffer.p == left-side subscript
// buffer.q == right-side subscript
// buffer.d == right-side superscript
//
// buffer.r == arrow
// buffer.rdt == arrow, script above, type
// buffer.rd == arrow, script above, content
// buffer.rqt == arrow, script below, type
// buffer.rq == arrow, script below, content
//
// buffer.text_
// buffer.rm
// etc.
//
// buffer.parenthesisLevel == int, starting at 0
// buffer.sb == bool, space before
// buffer.beginsWithBond == bool
//
// These letters are also used as state names.
//
// Other states:
// 0 == begin of main part (arrow/operator unlikely)
// 1 == next entity
// 2 == next entity (arrow/operator unlikely)
// 3 == next atom
// c == macro
//
/** @type {Buffer} */
var buffer = {};
buffer['parenthesisLevel'] = 0;
input = input.replace(/\n/g, " ");
input = input.replace(/[\u2212\u2013\u2014\u2010]/g, "-");
input = input.replace(/[\u2026]/g, "...");
//
// Looks through mhchemParser.transitions, to execute a matching action
// (recursive)
//
var lastInput;
var watchdog = 10;
/** @type {ParserOutput[]} */
var output = [];
while (true) {
if (lastInput !== input) {
watchdog = 10;
lastInput = input;
} else {
watchdog--;
}
//
// Find actions in transition table
//
var machine = mhchemParser.stateMachines[stateMachine];
var t = machine.transitions[state] || machine.transitions['*'];
iterateTransitions:
for (var i=0; i<t.length; i++) {
var matches = mhchemParser.patterns.match_(t[i].pattern, input);
if (matches) {
//
// Execute actions
//
var task = t[i].task;
for (var iA=0; iA<task.action_.length; iA++) {
var o;
//
// Find and execute action
//
if (machine.actions[task.action_[iA].type_]) {
o = machine.actions[task.action_[iA].type_](buffer, matches.match_, task.action_[iA].option);
} else if (mhchemParser.actions[task.action_[iA].type_]) {
o = mhchemParser.actions[task.action_[iA].type_](buffer, matches.match_, task.action_[iA].option);
} else {
throw ["MhchemBugA", "mhchem bug A. Please report. (" + task.action_[iA].type_ + ")"]; // Trying to use non-existing action
}
//
// Add output
//
mhchemParser.concatArray(output, o);
}
//
// Set next state,
// Shorten input,
// Continue with next character
// (= apply only one transition per position)
//
state = task.nextState || state;
if (input.length > 0) {
if (!task.revisit) {
input = matches.remainder;
}
if (!task.toContinue) {
break iterateTransitions;
}
} else {
return output;
}
}
}
//
// Prevent infinite loop
//
if (watchdog <= 0) {
throw ["MhchemBugU", "mhchem bug U. Please report."]; // Unexpected character
}
}
},
concatArray: function (a, b) {
if (b) {
if (Array.isArray(b)) {
for (var iB=0; iB<b.length; iB++) {
a.push(b[iB]);
}
} else {
a.push(b);
}
}
},
patterns: {
//
// Matching patterns
// either regexps or function that return null or {match_:"a", remainder:"bc"}
//
patterns: {
// property names must not look like integers ("2") for correct property traversal order, later on
'empty': /^$/,
'else': /^./,
'else2': /^./,
'space': /^\s/,
'space A': /^\s(?=[A-Z\\$])/,
'space$': /^\s$/,
'a-z': /^[a-z]/,
'x': /^x/,
'x$': /^x$/,
'i$': /^i$/,
'letters': /^(?:[a-zA-Z\u03B1-\u03C9\u0391-\u03A9?@]|(?:\\(?:alpha|beta|gamma|delta|epsilon|zeta|eta|theta|iota|kappa|lambda|mu|nu|xi|omicron|pi|rho|sigma|tau|upsilon|phi|chi|psi|omega|Gamma|Delta|Theta|Lambda|Xi|Pi|Sigma|Upsilon|Phi|Psi|Omega)(?:\s+|\{\}|(?![a-zA-Z]))))+/,
'\\greek': /^\\(?:alpha|beta|gamma|delta|epsilon|zeta|eta|theta|iota|kappa|lambda|mu|nu|xi|omicron|pi|rho|sigma|tau|upsilon|phi|chi|psi|omega|Gamma|Delta|Theta|Lambda|Xi|Pi|Sigma|Upsilon|Phi|Psi|Omega)(?:\s+|\{\}|(?![a-zA-Z]))/,
'one lowercase latin letter $': /^(?:([a-z])(?:$|[^a-zA-Z]))$/,
'$one lowercase latin letter$ $': /^\$(?:([a-z])(?:$|[^a-zA-Z]))\$$/,
'one lowercase greek letter $': /^(?:\$?[\u03B1-\u03C9]\$?|\$?\\(?:alpha|beta|gamma|delta|epsilon|zeta|eta|theta|iota|kappa|lambda|mu|nu|xi|omicron|pi|rho|sigma|tau|upsilon|phi|chi|psi|omega)\s*\$?)(?:\s+|\{\}|(?![a-zA-Z]))$/,
'digits': /^[0-9]+/,
'-9.,9': /^[+\-]?(?:[0-9]+(?:[,.][0-9]+)?|[0-9]*(?:\.[0-9]+))/,
'-9.,9 no missing 0': /^[+\-]?[0-9]+(?:[.,][0-9]+)?/,
'(-)(9.,9)(e)(99)': function (input) {
var m = input.match(/^(\+\-|\+\/\-|\+|\-|\\pm\s?)?([0-9]+(?:[,.][0-9]+)?|[0-9]*(?:\.[0-9]+))?(\((?:[0-9]+(?:[,.][0-9]+)?|[0-9]*(?:\.[0-9]+))\))?(?:([eE]|\s*(\*|x|\\times|\u00D7)\s*10\^)([+\-]?[0-9]+|\{[+\-]?[0-9]+\}))?/);
if (m && m[0]) {
return { match_: m.splice(1), remainder: input.substr(m[0].length) };
}
return null;
},
'(-)(9)^(-9)': function (input) {
var m = input.match(/^(\+\-|\+\/\-|\+|\-|\\pm\s?)?([0-9]+(?:[,.][0-9]+)?|[0-9]*(?:\.[0-9]+)?)\^([+\-]?[0-9]+|\{[+\-]?[0-9]+\})/);
if (m && m[0]) {
return { match_: m.splice(1), remainder: input.substr(m[0].length) };
}
return null;
},
'state of aggregation $': function (input) { // ... or crystal system
var a = mhchemParser.patterns.findObserveGroups(input, "", /^\([a-z]{1,3}(?=[\),])/, ")", ""); // (aq), (aq,$\infty$), (aq, sat)
if (a && a.remainder.match(/^($|[\s,;\)\]\}])/)) { return a; } // AND end of 'phrase'
var m = input.match(/^(?:\((?:\\ca\s?)?\$[amothc]\$\))/); // OR crystal system ($o$) (\ca$c$)
if (m) {
return { match_: m[0], remainder: input.substr(m[0].length) };
}
return null;
},
'_{(state of aggregation)}$': /^_\{(\([a-z]{1,3}\))\}/,
'{[(': /^(?:\\\{|\[|\()/,
')]}': /^(?:\)|\]|\\\})/,
', ': /^[,;]\s*/,
',': /^[,;]/,
'.': /^[.]/,
'. ': /^([.\u22C5\u00B7\u2022])\s*/,
'...': /^\.\.\.(?=$|[^.])/,
'* ': /^([*])\s*/,
'^{(...)}': function (input) { return mhchemParser.patterns.findObserveGroups(input, "^{", "", "", "}"); },
'^($...$)': function (input) { return mhchemParser.patterns.findObserveGroups(input, "^", "$", "$", ""); },
'^a': /^\^([0-9]+|[^\\_])/,
'^\\x{}{}': function (input) { return mhchemParser.patterns.findObserveGroups(input, "^", /^\\[a-zA-Z]+\{/, "}", "", "", "{", "}", "", true); },
'^\\x{}': function (input) { return mhchemParser.patterns.findObserveGroups(input, "^", /^\\[a-zA-Z]+\{/, "}", ""); },
'^\\x': /^\^(\\[a-zA-Z]+)\s*/,
'^(-1)': /^\^(-?\d+)/,
'\'': /^'/,
'_{(...)}': function (input) { return mhchemParser.patterns.findObserveGroups(input, "_{", "", "", "}"); },
'_($...$)': function (input) { return mhchemParser.patterns.findObserveGroups(input, "_", "$", "$", ""); },
'_9': /^_([+\-]?[0-9]+|[^\\])/,
'_\\x{}{}': function (input) { return mhchemParser.patterns.findObserveGroups(input, "_", /^\\[a-zA-Z]+\{/, "}", "", "", "{", "}", "", true); },
'_\\x{}': function (input) { return mhchemParser.patterns.findObserveGroups(input, "_", /^\\[a-zA-Z]+\{/, "}", ""); },
'_\\x': /^_(\\[a-zA-Z]+)\s*/,
'^_': /^(?:\^(?=_)|\_(?=\^)|[\^_]$)/,
'{}': /^\{\}/,
'{...}': function (input) { return mhchemParser.patterns.findObserveGroups(input, "", "{", "}", ""); },
'{(...)}': function (input) { return mhchemParser.patterns.findObserveGroups(input, "{", "", "", "}"); },
'$...$': function (input) { return mhchemParser.patterns.findObserveGroups(input, "", "$", "$", ""); },
'${(...)}$': function (input) { return mhchemParser.patterns.findObserveGroups(input, "${", "", "", "}$"); },
'$(...)$': function (input) { return mhchemParser.patterns.findObserveGroups(input, "$", "", "", "$"); },
'=<>': /^[=<>]/,
'#': /^[#\u2261]/,
'+': /^\+/,
'-$': /^-(?=[\s_},;\]/]|$|\([a-z]+\))/, // -space -, -; -] -/ -$ -state-of-aggregation
'-9': /^-(?=[0-9])/,
'- orbital overlap': /^-(?=(?:[spd]|sp)(?:$|[\s,;\)\]\}]))/,
'-': /^-/,
'pm-operator': /^(?:\\pm|\$\\pm\$|\+-|\+\/-)/,
'operator': /^(?:\+|(?:[\-=<>]|<<|>>|\\approx|\$\\approx\$)(?=\s|$|-?[0-9]))/,
'arrowUpDown': /^(?:v|\(v\)|\^|\(\^\))(?=$|[\s,;\)\]\}])/,
'\\bond{(...)}': function (input) { return mhchemParser.patterns.findObserveGroups(input, "\\bond{", "", "", "}"); },
'->': /^(?:<->|<-->|->|<-|<=>>|<<=>|<=>|[\u2192\u27F6\u21CC])/,
'CMT': /^[CMT](?=\[)/,
'[(...)]': function (input) { return mhchemParser.patterns.findObserveGroups(input, "[", "", "", "]"); },
'1st-level escape': /^(&|\\\\|\\hline)\s*/,
'\\,': /^(?:\\[,\ ;:])/, // \\x - but output no space before
'\\x{}{}': function (input) { return mhchemParser.patterns.findObserveGroups(input, "", /^\\[a-zA-Z]+\{/, "}", "", "", "{", "}", "", true); },
'\\x{}': function (input) { return mhchemParser.patterns.findObserveGroups(input, "", /^\\[a-zA-Z]+\{/, "}", ""); },
'\\ca': /^\\ca(?:\s+|(?![a-zA-Z]))/,
'\\x': /^(?:\\[a-zA-Z]+\s*|\\[_&{}%])/,
'orbital': /^(?:[0-9]{1,2}[spdfgh]|[0-9]{0,2}sp)(?=$|[^a-zA-Z])/, // only those with numbers in front, because the others will be formatted correctly anyway
'others': /^[\/~|]/,
'\\frac{(...)}': function (input) { return mhchemParser.patterns.findObserveGroups(input, "\\frac{", "", "", "}", "{", "", "", "}"); },
'\\overset{(...)}': function (input) { return mhchemParser.patterns.findObserveGroups(input, "\\overset{", "", "", "}", "{", "", "", "}"); },
'\\underset{(...)}': function (input) { return mhchemParser.patterns.findObserveGroups(input, "\\underset{", "", "", "}", "{", "", "", "}"); },
'\\underbrace{(...)}': function (input) { return mhchemParser.patterns.findObserveGroups(input, "\\underbrace{", "", "", "}_", "{", "", "", "}"); },
'\\color{(...)}0': function (input) { return mhchemParser.patterns.findObserveGroups(input, "\\color{", "", "", "}"); },
'\\color{(...)}{(...)}1': function (input) { return mhchemParser.patterns.findObserveGroups(input, "\\color{", "", "", "}", "{", "", "", "}"); },
'\\color(...){(...)}2': function (input) { return mhchemParser.patterns.findObserveGroups(input, "\\color", "\\", "", /^(?=\{)/, "{", "", "", "}"); },
'\\ce{(...)}': function (input) { return mhchemParser.patterns.findObserveGroups(input, "\\ce{", "", "", "}"); },
'oxidation$': /^(?:[+-][IVX]+|\\pm\s*0|\$\\pm\$\s*0)$/,
'd-oxidation$': /^(?:[+-]?\s?[IVX]+|\\pm\s*0|\$\\pm\$\s*0)$/, // 0 could be oxidation or charge
'roman numeral': /^[IVX]+/,
'1/2$': /^[+\-]?(?:[0-9]+|\$[a-z]\$|[a-z])\/[0-9]+(?:\$[a-z]\$|[a-z])?$/,
'amount': function (input) {
var match;
// e.g. 2, 0.5, 1/2, -2, n/2, +; $a$ could be added later in parsing
match = input.match(/^(?:(?:(?:\([+\-]?[0-9]+\/[0-9]+\)|[+\-]?(?:[0-9]+|\$[a-z]\$|[a-z])\/[0-9]+|[+\-]?[0-9]+[.,][0-9]+|[+\-]?\.[0-9]+|[+\-]?[0-9]+)(?:[a-z](?=\s*[A-Z]))?)|[+\-]?[a-z](?=\s*[A-Z])|\+(?!\s))/);
if (match) {
return { match_: match[0], remainder: input.substr(match[0].length) };
}
var a = mhchemParser.patterns.findObserveGroups(input, "", "$", "$", "");
if (a) { // e.g. $2n-1$, $-$
match = a.match_.match(/^\$(?:\(?[+\-]?(?:[0-9]*[a-z]?[+\-])?[0-9]*[a-z](?:[+\-][0-9]*[a-z]?)?\)?|\+|-)\$$/);
if (match) {
return { match_: match[0], remainder: input.substr(match[0].length) };
}
}
return null;
},
'amount2': function (input) { return this['amount'](input); },
'(KV letters),': /^(?:[A-Z][a-z]{0,2}|i)(?=,)/,
'formula$': function (input) {
if (input.match(/^\([a-z]+\)$/)) { return null; } // state of aggregation = no formula
var match = input.match(/^(?:[a-z]|(?:[0-9\ \+\-\,\.\(\)]+[a-z])+[0-9\ \+\-\,\.\(\)]*|(?:[a-z][0-9\ \+\-\,\.\(\)]+)+[a-z]?)$/);
if (match) {
return { match_: match[0], remainder: input.substr(match[0].length) };
}
return null;
},
'uprightEntities': /^(?:pH|pOH|pC|pK|iPr|iBu)(?=$|[^a-zA-Z])/,
'/': /^\s*(\/)\s*/,
'//': /^\s*(\/\/)\s*/,
'*': /^\s*[*.]\s*/
},
findObserveGroups: function (input, begExcl, begIncl, endIncl, endExcl, beg2Excl, beg2Incl, end2Incl, end2Excl, combine) {
/** @type {{(input: string, pattern: string | RegExp): string | string[] | null;}} */
var _match = function (input, pattern) {
if (typeof pattern === "string") {
if (input.indexOf(pattern) !== 0) { return null; }
return pattern;
} else {
var match = input.match(pattern);
if (!match) { return null; }
return match[0];
}
};
/** @type {{(input: string, i: number, endChars: string | RegExp): {endMatchBegin: number, endMatchEnd: number} | null;}} */
var _findObserveGroups = function (input, i, endChars) {
var braces = 0;
while (i < input.length) {
var a = input.charAt(i);
var match = _match(input.substr(i), endChars);
if (match !== null && braces === 0) {
return { endMatchBegin: i, endMatchEnd: i + match.length };
} else if (a === "{") {
braces++;
} else if (a === "}") {
if (braces === 0) {
throw ["ExtraCloseMissingOpen", "Extra close brace or missing open brace"];
} else {
braces--;
}
}
i++;
}
if (braces > 0) {
return null;
}
return null;
};
var match = _match(input, begExcl);
if (match === null) { return null; }
input = input.substr(match.length);
match = _match(input, begIncl);
if (match === null) { return null; }
var e = _findObserveGroups(input, match.length, endIncl || endExcl);
if (e === null) { return null; }
var match1 = input.substring(0, (endIncl ? e.endMatchEnd : e.endMatchBegin));
if (!(beg2Excl || beg2Incl)) {
return {
match_: match1,
remainder: input.substr(e.endMatchEnd)
};
} else {
var group2 = this.findObserveGroups(input.substr(e.endMatchEnd), beg2Excl, beg2Incl, end2Incl, end2Excl);
if (group2 === null) { return null; }
/** @type {string[]} */
var matchRet = [match1, group2.match_];
return {
match_: (combine ? matchRet.join("") : matchRet),
remainder: group2.remainder
};
}
},
//
// Matching function
// e.g. match("a", input) will look for the regexp called "a" and see if it matches
// returns null or {match_:"a", remainder:"bc"}
//
match_: function (m, input) {
var pattern = mhchemParser.patterns.patterns[m];
if (pattern === undefined) {
throw ["MhchemBugP", "mhchem bug P. Please report. (" + m + ")"]; // Trying to use non-existing pattern
} else if (typeof pattern === "function") {
return mhchemParser.patterns.patterns[m](input); // cannot use cached var pattern here, because some pattern functions need this===mhchemParser
} else { // RegExp
var match = input.match(pattern);
if (match) {
var mm;
if (match[2]) {
mm = [ match[1], match[2] ];
} else if (match[1]) {
mm = match[1];
} else {
mm = match[0];
}
return { match_: mm, remainder: input.substr(match[0].length) };
}
return null;
}
}
},
//
// Generic state machine actions
//
actions: {
'a=': function (buffer, m) { buffer.a = (buffer.a || "") + m; },
'b=': function (buffer, m) { buffer.b = (buffer.b || "") + m; },
'p=': function (buffer, m) { buffer.p = (buffer.p || "") + m; },
'o=': function (buffer, m) { buffer.o = (buffer.o || "") + m; },
'q=': function (buffer, m) { buffer.q = (buffer.q || "") + m; },
'd=': function (buffer, m) { buffer.d = (buffer.d || "") + m; },
'rm=': function (buffer, m) { buffer.rm = (buffer.rm || "") + m; },
'text=': function (buffer, m) { buffer.text_ = (buffer.text_ || "") + m; },
'insert': function (buffer, m, a) { return { type_: a }; },
'insert+p1': function (buffer, m, a) { return { type_: a, p1: m }; },
'insert+p1+p2': function (buffer, m, a) { return { type_: a, p1: m[0], p2: m[1] }; },
'copy': function (buffer, m) { return m; },
'rm': function (buffer, m) { return { type_: 'rm', p1: m || ""}; },
'text': function (buffer, m) { return mhchemParser.go(m, 'text'); },
'{text}': function (buffer, m) {
var ret = [ "{" ];
mhchemParser.concatArray(ret, mhchemParser.go(m, 'text'));
ret.push("}");
return ret;
},
'tex-math': function (buffer, m) { return mhchemParser.go(m, 'tex-math'); },
'tex-math tight': function (buffer, m) { return mhchemParser.go(m, 'tex-math tight'); },
'bond': function (buffer, m, k) { return { type_: 'bond', kind_: k || m }; },
'color0-output': function (buffer, m) { return { type_: 'color0', color: m[0] }; },
'ce': function (buffer, m) { return mhchemParser.go(m); },
'1/2': function (buffer, m) {
/** @type {ParserOutput[]} */
var ret = [];
if (m.match(/^[+\-]/)) {
ret.push(m.substr(0, 1));
m = m.substr(1);
}
var n = m.match(/^([0-9]+|\$[a-z]\$|[a-z])\/([0-9]+)(\$[a-z]\$|[a-z])?$/);
n[1] = n[1].replace(/\$/g, "");
ret.push({ type_: 'frac', p1: n[1], p2: n[2] });
if (n[3]) {
n[3] = n[3].replace(/\$/g, "");
ret.push({ type_: 'tex-math', p1: n[3] });
}
return ret;
},
'9,9': function (buffer, m) { return mhchemParser.go(m, '9,9'); }
},
//
// createTransitions
// convert { 'letter': { 'state': { action_: 'output' } } } to { 'state' => [ { pattern: 'letter', task: { action_: [{type_: 'output'}] } } ] }
// with expansion of 'a|b' to 'a' and 'b' (at 2 places)
//
createTransitions: function (o) {
var pattern, state;
/** @type {string[]} */
var stateArray;
var i;
//
// 1. Collect all states
//
/** @type {Transitions} */
var transitions = {};
for (pattern in o) {
for (state in o[pattern]) {
stateArray = state.split("|");
o[pattern][state].stateArray = stateArray;
for (i=0; i<stateArray.length; i++) {
transitions[stateArray[i]] = [];
}
}
}
//
// 2. Fill states
//
for (pattern in o) {
for (state in o[pattern]) {
stateArray = o[pattern][state].stateArray || [];
for (i=0; i<stateArray.length; i++) {
//
// 2a. Normalize actions into array: 'text=' ==> [{type_:'text='}]
// (Note to myself: Resolving the function here would be problematic. It would need .bind (for *this*) and currying (for *option*).)
//
/** @type {any} */
var p = o[pattern][state];
if (p.action_) {
p.action_ = [].concat(p.action_);
for (var k=0; k<p.action_.length; k++) {
if (typeof p.action_[k] === "string") {
p.action_[k] = { type_: p.action_[k] };
}
}
} else {
p.action_ = [];
}
//
// 2.b Multi-insert
//
var patternArray = pattern.split("|");
for (var j=0; j<patternArray.length; j++) {
if (stateArray[i] === '*') { // insert into all
for (var t in transitions) {
transitions[t].push({ pattern: patternArray[j], task: p });
}
} else {
transitions[stateArray[i]].push({ pattern: patternArray[j], task: p });
}
}
}
}
}
return transitions;
},
stateMachines: {}
};
//
// Definition of state machines
//
mhchemParser.stateMachines = {
//
// \ce state machines
//
//#region ce
'ce': { // main parser
transitions: mhchemParser.createTransitions({
'empty': {
'*': { action_: 'output' } },
'else': {
'0|1|2': { action_: 'beginsWithBond=false', revisit: true, toContinue: true } },
'oxidation$': {
'0': { action_: 'oxidation-output' } },
'CMT': {
'r': { action_: 'rdt=', nextState: 'rt' },
'rd': { action_: 'rqt=', nextState: 'rdt' } },
'arrowUpDown': {
'0|1|2|as': { action_: [ 'sb=false', 'output', 'operator' ], nextState: '1' } },
'uprightEntities': {
'0|1|2': { action_: [ 'o=', 'output' ], nextState: '1' } },
'orbital': {
'0|1|2|3': { action_: 'o=', nextState: 'o' } },
'->': {
'0|1|2|3': { action_: 'r=', nextState: 'r' },
'a|as': { action_: [ 'output', 'r=' ], nextState: 'r' },
'*': { action_: [ 'output', 'r=' ], nextState: 'r' } },
'+': {
'o': { action_: 'd= kv', nextState: 'd' },
'd|D': { action_: 'd=', nextState: 'd' },
'q': { action_: 'd=', nextState: 'qd' },
'qd|qD': { action_: 'd=', nextState: 'qd' },
'dq': { action_: [ 'output', 'd=' ], nextState: 'd' },
'3': { action_: [ 'sb=false', 'output', 'operator' ], nextState: '0' } },
'amount': {
'0|2': { action_: 'a=', nextState: 'a' } },
'pm-operator': {
'0|1|2|a|as': { action_: [ 'sb=false', 'output', { type_: 'operator', option: '\\pm' } ], nextState: '0' } },
'operator': {
'0|1|2|a|as': { action_: [ 'sb=false', 'output', 'operator' ], nextState: '0' } },
'-$': {
'o|q': { action_: [ 'charge or bond', 'output' ], nextState: 'qd' },
'd': { action_: 'd=', nextState: 'd' },
'D': { action_: [ 'output', { type_: 'bond', option: "-" } ], nextState: '3' },
'q': { action_: 'd=', nextState: 'qd' },
'qd': { action_: 'd=', nextState: 'qd' },
'qD|dq': { action_: [ 'output', { type_: 'bond', option: "-" } ], nextState: '3' } },
'-9': {
'3|o': { action_: [ 'output', { type_: 'insert', option: 'hyphen' } ], nextState: '3' } },
'- orbital overlap': {
'o': { action_: [ 'output', { type_: 'insert', option: 'hyphen' } ], nextState: '2' },
'd': { action_: [ 'output', { type_: 'insert', option: 'hyphen' } ], nextState: '2' } },
'-': {
'0|1|2': { action_: [ { type_: 'output', option: 1 }, 'beginsWithBond=true', { type_: 'bond', option: "-" } ], nextState: '3' },
'3': { action_: { type_: 'bond', option: "-" } },
'a': { action_: [ 'output', { type_: 'insert', option: 'hyphen' } ], nextState: '2' },
'as': { action_: [ { type_: 'output', option: 2 }, { type_: 'bond', option: "-" } ], nextState: '3' },
'b': { action_: 'b=' },
'o': { action_: { type_: '- after o/d', option: false }, nextState: '2' },
'q': { action_: { type_: '- after o/d', option: false }, nextState: '2' },
'd|qd|dq': { action_: { type_: '- after o/d', option: true }, nextState: '2' },
'D|qD|p': { action_: [ 'output', { type_: 'bond', option: "-" } ], nextState: '3' } },
'amount2': {
'1|3': { action_: 'a=', nextState: 'a' } },
'letters': {
'0|1|2|3|a|as|b|p|bp|o': { action_: 'o=', nextState: 'o' },
'q|dq': { action_: ['output', 'o='], nextState: 'o' },
'd|D|qd|qD': { action_: 'o after d', nextState: 'o' } },
'digits': {
'o': { action_: 'q=', nextState: 'q' },
'd|D': { action_: 'q=', nextState: 'dq' },
'q': { action_: [ 'output', 'o=' ], nextState: 'o' },
'a': { action_: 'o=', nextState: 'o' } },
'space A': {
'b|p|bp': {} },
'space': {
'a': { nextState: 'as' },
'0': { action_: 'sb=false' },
'1|2': { action_: 'sb=true' },
'r|rt|rd|rdt|rdq': { action_: 'output', nextState: '0' },
'*': { action_: [ 'output', 'sb=true' ], nextState: '1'} },
'1st-level escape': {
'1|2': { action_: [ 'output', { type_: 'insert+p1', option: '1st-level escape' } ] },
'*': { action_: [ 'output', { type_: 'insert+p1', option: '1st-level escape' } ], nextState: '0' } },
'[(...)]': {
'r|rt': { action_: 'rd=', nextState: 'rd' },
'rd|rdt': { action_: 'rq=', nextState: 'rdq' } },
'...': {
'o|d|D|dq|qd|qD': { action_: [ 'output', { type_: 'bond', option: "..." } ], nextState: '3' },
'*': { action_: [ { type_: 'output', option: 1 }, { type_: 'insert', option: 'ellipsis' } ], nextState: '1' } },
'. |* ': {
'*': { action_: [ 'output', { type_: 'insert', option: 'addition compound' } ], nextState: '1' } },
'state of aggregation $': {
'*': { action_: [ 'output', 'state of aggregation' ], nextState: '1' } },
'{[(': {
'a|as|o': { action_: [ 'o=', 'output', 'parenthesisLevel++' ], nextState: '2' },
'0|1|2|3': { action_: [ 'o=', 'output', 'parenthesisLevel++' ], nextState: '2' },
'*': { action_: [ 'output', 'o=', 'output', 'parenthesisLevel++' ], nextState: '2' } },
')]}': {
'0|1|2|3|b|p|bp|o': { action_: [ 'o=', 'parenthesisLevel--' ], nextState: 'o' },
'a|as|d|D|q|qd|qD|dq': { action_: [ 'output', 'o=', 'parenthesisLevel--' ], nextState: 'o' } },
', ': {
'*': { action_: [ 'output', 'comma' ], nextState: '0' } },
'^_': { // ^ and _ without a sensible argument
'*': { } },
'^{(...)}|^($...$)': {
'0|1|2|as': { action_: 'b=', nextState: 'b' },
'p': { action_: 'b=', nextState: 'bp' },
'3|o': { action_: 'd= kv', nextState: 'D' },
'q': { action_: 'd=', nextState: 'qD' },
'd|D|qd|qD|dq': { action_: [ 'output', 'd=' ], nextState: 'D' } },
'^a|^\\x{}{}|^\\x{}|^\\x|\'': {
'0|1|2|as': { action_: 'b=', nextState: 'b' },
'p': { action_: 'b=', nextState: 'bp' },
'3|o': { action_: 'd= kv', nextState: 'd' },
'q': { action_: 'd=', nextState: 'qd' },
'd|qd|D|qD': { action_: 'd=' },
'dq': { action_: [ 'output', 'd=' ], nextState: 'd' } },
'_{(state of aggregation)}$': {
'd|D|q|qd|qD|dq': { action_: [ 'output', 'q=' ], nextState: 'q' } },
'_{(...)}|_($...$)|_9|_\\x{}{}|_\\x{}|_\\x': {
'0|1|2|as': { action_: 'p=', nextState: 'p' },
'b': { action_: 'p=', nextState: 'bp' },
'3|o': { action_: 'q=', nextState: 'q' },
'd|D': { action_: 'q=', nextState: 'dq' },
'q|qd|qD|dq': { action_: [ 'output', 'q=' ], nextState: 'q' } },
'=<>': {
'0|1|2|3|a|as|o|q|d|D|qd|qD|dq': { action_: [ { type_: 'output', option: 2 }, 'bond' ], nextState: '3' } },
'#': {
'0|1|2|3|a|as|o': { action_: [ { type_: 'output', option: 2 }, { type_: 'bond', option: "#" } ], nextState: '3' } },
'{}': {
'*': { action_: { type_: 'output', option: 1 }, nextState: '1' } },
'{...}': {
'0|1|2|3|a|as|b|p|bp': { action_: 'o=', nextState: 'o' },
'o|d|D|q|qd|qD|dq': { action_: [ 'output', 'o=' ], nextState: 'o' } },
'$...$': {
'a': { action_: 'a=' }, // 2$n$
'0|1|2|3|as|b|p|bp|o': { action_: 'o=', nextState: 'o' }, // not 'amount'
'as|o': { action_: 'o=' },
'q|d|D|qd|qD|dq': { action_: [ 'output', 'o=' ], nextState: 'o' } },
'\\bond{(...)}': {
'*': { action_: [ { type_: 'output', option: 2 }, 'bond' ], nextState: "3" } },
'\\frac{(...)}': {
'*': { action_: [ { type_: 'output', option: 1 }, 'frac-output' ], nextState: '3' } },
'\\overset{(...)}': {
'*': { action_: [ { type_: 'output', option: 2 }, 'overset-output' ], nextState: '3' } },
'\\underset{(...)}': {
'*': { action_: [ { type_: 'output', option: 2 }, 'underset-output' ], nextState: '3' } },
'\\underbrace{(...)}': {
'*': { action_: [ { type_: 'output', option: 2 }, 'underbrace-output' ], nextState: '3' } },
'\\color{(...)}{(...)}1|\\color(...){(...)}2': {
'*': { action_: [ { type_: 'output', option: 2 }, 'color-output' ], nextState: '3' } },
'\\color{(...)}0': {
'*': { action_: [ { type_: 'output', option: 2 }, 'color0-output' ] } },
'\\ce{(...)}': {
'*': { action_: [ { type_: 'output', option: 2 }, 'ce' ], nextState: '3' } },
'\\,': {
'*': { action_: [ { type_: 'output', option: 1 }, 'copy' ], nextState: '1' } },
'\\x{}{}|\\x{}|\\x': {
'0|1|2|3|a|as|b|p|bp|o|c0': { action_: [ 'o=', 'output' ], nextState: '3' },
'*': { action_: ['output', 'o=', 'output' ], nextState: '3' } },
'others': {
'*': { action_: [ { type_: 'output', option: 1 }, 'copy' ], nextState: '3' } },
'else2': {
'a': { action_: 'a to o', nextState: 'o', revisit: true },
'as': { action_: [ 'output', 'sb=true' ], nextState: '1', revisit: true },
'r|rt|rd|rdt|rdq': { action_: [ 'output' ], nextState: '0', revisit: true },
'*': { action_: [ 'output', 'copy' ], nextState: '3' } }
}),
actions: {
'o after d': function (buffer, m) {
var ret;
if ((buffer.d || "").match(/^[0-9]+$/)) {
var tmp = buffer.d;
buffer.d = undefined;
ret = this['output'](buffer);
buffer.b = tmp;
} else {
ret = this['output'](buffer);
}
mhchemParser.actions['o='](buffer, m);
return ret;
},
'd= kv': function (buffer, m) {
buffer.d = m;
buffer.dType = 'kv';
},
'charge or bond': function (buffer, m) {
if (buffer['beginsWithBond']) {
/** @type {ParserOutput[]} */
var ret = [];
mhchemParser.concatArray(ret, this['output'](buffer));
mhchemParser.concatArray(ret, mhchemParser.actions['bond'](buffer, m, "-"));
return ret;
} else {
buffer.d = m;
}
},
'- after o/d': function (buffer, m, isAfterD) {
var c1 = mhchemParser.patterns.match_('orbital', buffer.o || "");
var c2 = mhchemParser.patterns.match_('one lowercase greek letter $', buffer.o || "");
var c3 = mhchemParser.patterns.match_('one lowercase latin letter $', buffer.o || "");
var c4 = mhchemParser.patterns.match_('$one lowercase latin letter$ $', buffer.o || "");
var hyphenFollows = m==="-" && ( c1 && c1.remainder==="" || c2 || c3 || c4 );
if (hyphenFollows && !buffer.a && !buffer.b && !buffer.p && !buffer.d && !buffer.q && !c1 && c3) {
buffer.o = '$' + buffer.o + '$';
}
/** @type {ParserOutput[]} */
var ret = [];
if (hyphenFollows) {
mhchemParser.concatArray(ret, this['output'](buffer));
ret.push({ type_: 'hyphen' });
} else {
c1 = mhchemParser.patterns.match_('digits', buffer.d || "");
if (isAfterD && c1 && c1.remainder==='') {
mhchemParser.concatArray(ret, mhchemParser.actions['d='](buffer, m));
mhchemParser.concatArray(ret, this['output'](buffer));
} else {
mhchemParser.concatArray(ret, this['output'](buffer));
mhchemParser.concatArray(ret, mhchemParser.actions['bond'](buffer, m, "-"));
}
}
return ret;
},
'a to o': function (buffer) {
buffer.o = buffer.a;
buffer.a = undefined;
},
'sb=true': function (buffer) { buffer.sb = true; },
'sb=false': function (buffer) { buffer.sb = false; },
'beginsWithBond=true': function (buffer) { buffer['beginsWithBond'] = true; },
'beginsWithBond=false': function (buffer) { buffer['beginsWithBond'] = false; },
'parenthesisLevel++': function (buffer) { buffer['parenthesisLevel']++; },
'parenthesisLevel--': function (buffer) { buffer['parenthesisLevel']--; },
'state of aggregation': function (buffer, m) {
return { type_: 'state of aggregation', p1: mhchemParser.go(m, 'o') };
},
'comma': function (buffer, m) {
var a = m.replace(/\s*$/, '');
var withSpace = (a !== m);
if (withSpace && buffer['parenthesisLevel'] === 0) {
return { type_: 'comma enumeration L', p1: a };
} else {
return { type_: 'comma enumeration M', p1: a };
}
},
'output': function (buffer, m, entityFollows) {
// entityFollows:
// undefined = if we have nothing else to output, also ignore the just read space (buffer.sb)
// 1 = an entity follows, never omit the space if there was one just read before (can only apply to state 1)
// 2 = 1 + the entity can have an amount, so output a\, instead of converting it to o (can only apply to states a|as)
/** @type {ParserOutput | ParserOutput[]} */
var ret;
if (!buffer.r) {
ret = [];
if (!buffer.a && !buffer.b && !buffer.p && !buffer.o && !buffer.q && !buffer.d && !entityFollows) {
//ret = [];
} else {
if (buffer.sb) {
ret.push({ type_: 'entitySkip' });
}
if (!buffer.o && !buffer.q && !buffer.d && !buffer.b && !buffer.p && entityFollows!==2) {
buffer.o = buffer.a;
buffer.a = undefined;
} else if (!buffer.o && !buffer.q && !buffer.d && (buffer.b || buffer.p)) {
buffer.o = buffer.a;
buffer.d = buffer.b;
buffer.q = buffer.p;
buffer.a = buffer.b = buffer.p = undefined;
} else {
if (buffer.o && buffer.dType==='kv' && mhchemParser.patterns.match_('d-oxidation$', buffer.d || "")) {
buffer.dType = 'oxidation';
} else if (buffer.o && buffer.dType==='kv' && !buffer.q) {
buffer.dType = undefined;
}
}
ret.push({
type_: 'chemfive',
a: mhchemParser.go(buffer.a, 'a'),
b: mhchemParser.go(buffer.b, 'bd'),
p: mhchemParser.go(buffer.p, 'pq'),
o: mhchemParser.go(buffer.o, 'o'),
q: mhchemParser.go(buffer.q, 'pq'),
d: mhchemParser.go(buffer.d, (buffer.dType === 'oxidation' ? 'oxidation' : 'bd')),
dType: buffer.dType
});
}
} else { // r
/** @type {ParserOutput[]} */
var rd;
if (buffer.rdt === 'M') {
rd = mhchemParser.go(buffer.rd, 'tex-math');
} else if (buffer.rdt === 'T') {
rd = [ { type_: 'text', p1: buffer.rd || "" } ];
} else {
rd = mhchemParser.go(buffer.rd);
}
/** @type {ParserOutput[]} */
var rq;
if (buffer.rqt === 'M') {
rq = mhchemParser.go(buffer.rq, 'tex-math');
} else if (buffer.rqt === 'T') {
rq = [ { type_: 'text', p1: buffer.rq || ""} ];
} else {
rq = mhchemParser.go(buffer.rq);
}
ret = {
type_: 'arrow',
r: buffer.r,
rd: rd,
rq: rq
};
}
for (var p in buffer) {
if (p !== 'parenthesisLevel' && p !== 'beginsWithBond') {
delete buffer[p];
}
}
return ret;
},
'oxidation-output': function (buffer, m) {
var ret = [ "{" ];
mhchemParser.concatArray(ret, mhchemParser.go(m, 'oxidation'));
ret.push("}");
return ret;
},
'frac-output': function (buffer, m) {
return { type_: 'frac-ce', p1: mhchemParser.go(m[0]), p2: mhchemParser.go(m[1]) };
},
'overset-output': function (buffer, m) {
return { type_: 'overset', p1: mhchemParser.go(m[0]), p2: mhchemParser.go(m[1]) };
},
'underset-output': function (buffer, m) {
return { type_: 'underset', p1: mhchemParser.go(m[0]), p2: mhchemParser.go(m[1]) };
},
'underbrace-output': function (buffer, m) {
return { type_: 'underbrace', p1: mhchemParser.go(m[0]), p2: mhchemParser.go(m[1]) };
},
'color-output': function (buffer, m) {
return { type_: 'color', color1: m[0], color2: mhchemParser.go(m[1]) };
},
'r=': function (buffer, m) { buffer.r = m; },
'rdt=': function (buffer, m) { buffer.rdt = m; },
'rd=': function (buffer, m) { buffer.rd = m; },
'rqt=': function (buffer, m) { buffer.rqt = m; },
'rq=': function (buffer, m) { buffer.rq = m; },
'operator': function (buffer, m, p1) { return { type_: 'operator', kind_: (p1 || m) }; }
}
},
'a': {
transitions: mhchemParser.createTransitions({
'empty': {
'*': {} },
'1/2$': {
'0': { action_: '1/2' } },
'else': {
'0': { nextState: '1', revisit: true } },
'$(...)$': {
'*': { action_: 'tex-math tight', nextState: '1' } },
',': {
'*': { action_: { type_: 'insert', option: 'commaDecimal' } } },
'else2': {
'*': { action_: 'copy' } }
}),
actions: {}
},
'o': {
transitions: mhchemParser.createTransitions({
'empty': {
'*': {} },
'1/2$': {
'0': { action_: '1/2' } },
'else': {
'0': { nextState: '1', revisit: true } },
'letters': {
'*': { action_: 'rm' } },
'\\ca': {
'*': { action_: { type_: 'insert', option: 'circa' } } },
'\\x{}{}|\\x{}|\\x': {
'*': { action_: 'copy' } },
'${(...)}$|$(...)$': {
'*': { action_: 'tex-math' } },
'{(...)}': {
'*': { action_: '{text}' } },
'else2': {
'*': { action_: 'copy' } }
}),
actions: {}
},
'text': {
transitions: mhchemParser.createTransitions({
'empty': {
'*': { action_: 'output' } },
'{...}': {
'*': { action_: 'text=' } },
'${(...)}$|$(...)$': {
'*': { action_: 'tex-math' } },
'\\greek': {
'*': { action_: [ 'output', 'rm' ] } },
'\\,|\\x{}{}|\\x{}|\\x': {
'*': { action_: [ 'output', 'copy' ] } },
'else': {
'*': { action_: 'text=' } }
}),
actions: {
'output': function (buffer) {
if (buffer.text_) {
/** @type {ParserOutput} */
var ret = { type_: 'text', p1: buffer.text_ };
for (var p in buffer) { delete buffer[p]; }
return ret;
}
}
}
},
'pq': {
transitions: mhchemParser.createTransitions({
'empty': {
'*': {} },
'state of aggregation $': {
'*': { action_: 'state of aggregation' } },
'i$': {
'0': { nextState: '!f', revisit: true } },
'(KV letters),': {
'0': { action_: 'rm', nextState: '0' } },
'formula$': {
'0': { nextState: 'f', revisit: true } },
'1/2$': {
'0': { action_: '1/2' } },
'else': {
'0': { nextState: '!f', revisit: true } },
'${(...)}$|$(...)$': {
'*': { action_: 'tex-math' } },
'{(...)}': {
'*': { action_: 'text' } },
'a-z': {
'f': { action_: 'tex-math' } },
'letters': {
'*': { action_: 'rm' } },
'-9.,9': {
'*': { action_: '9,9' } },
',': {
'*': { action_: { type_: 'insert+p1', option: 'comma enumeration S' } } },
'\\color{(...)}{(...)}1|\\color(...){(...)}2': {
'*': { action_: 'color-output' } },
'\\color{(...)}0': {
'*': { action_: 'color0-output' } },
'\\ce{(...)}': {
'*': { action_: 'ce' } },
'\\,|\\x{}{}|\\x{}|\\x': {
'*': { action_: 'copy' } },
'else2': {
'*': { action_: 'copy' } }
}),
actions: {
'state of aggregation': function (buffer, m) {
return { type_: 'state of aggregation subscript', p1: mhchemParser.go(m, 'o') };
},
'color-output': function (buffer, m) {
return { type_: 'color', color1: m[0], color2: mhchemParser.go(m[1], 'pq') };
}
}
},
'bd': {
transitions: mhchemParser.createTransitions({
'empty': {
'*': {} },
'x$': {
'0': { nextState: '!f', revisit: true } },
'formula$': {
'0': { nextState: 'f', revisit: true } },
'else': {
'0': { nextState: '!f', revisit: true } },
'-9.,9 no missing 0': {
'*': { action_: '9,9' } },
'.': {
'*': { action_: { type_: 'insert', option: 'electron dot' } } },
'a-z': {
'f': { action_: 'tex-math' } },
'x': {
'*': { action_: { type_: 'insert', option: 'KV x' } } },
'letters': {
'*': { action_: 'rm' } },
'\'': {
'*': { action_: { type_: 'insert', option: 'prime' } } },
'${(...)}$|$(...)$': {
'*': { action_: 'tex-math' } },
'{(...)}': {
'*': { action_: 'text' } },
'\\color{(...)}{(...)}1|\\color(...){(...)}2': {
'*': { action_: 'color-output' } },
'\\color{(...)}0': {
'*': { action_: 'color0-output' } },
'\\ce{(...)}': {
'*': { action_: 'ce' } },
'\\,|\\x{}{}|\\x{}|\\x': {
'*': { action_: 'copy' } },
'else2': {
'*': { action_: 'copy' } }
}),
actions: {
'color-output': function (buffer, m) {
return { type_: 'color', color1: m[0], color2: mhchemParser.go(m[1], 'bd') };
}
}
},
'oxidation': {
transitions: mhchemParser.createTransitions({
'empty': {
'*': {} },
'roman numeral': {
'*': { action_: 'roman-numeral' } },
'${(...)}$|$(...)$': {
'*': { action_: 'tex-math' } },
'else': {
'*': { action_: 'copy' } }
}),
actions: {
'roman-numeral': function (buffer, m) { return { type_: 'roman numeral', p1: m || "" }; }
}
},
'tex-math': {
transitions: mhchemParser.createTransitions({
'empty': {
'*': { action_: 'output' } },
'\\ce{(...)}': {
'*': { action_: [ 'output', 'ce' ] } },
'{...}|\\,|\\x{}{}|\\x{}|\\x': {
'*': { action_: 'o=' } },
'else': {
'*': { action_: 'o=' } }
}),
actions: {
'output': function (buffer) {
if (buffer.o) {
/** @type {ParserOutput} */
var ret = { type_: 'tex-math', p1: buffer.o };
for (var p in buffer) { delete buffer[p]; }
return ret;
}
}
}
},
'tex-math tight': {
transitions: mhchemParser.createTransitions({
'empty': {
'*': { action_: 'output' } },
'\\ce{(...)}': {
'*': { action_: [ 'output', 'ce' ] } },
'{...}|\\,|\\x{}{}|\\x{}|\\x': {
'*': { action_: 'o=' } },
'-|+': {
'*': { action_: 'tight operator' } },
'else': {
'*': { action_: 'o=' } }
}),
actions: {
'tight operator': function (buffer, m) { buffer.o = (buffer.o || "") + "{"+m+"}"; },
'output': function (buffer) {
if (buffer.o) {
/** @type {ParserOutput} */
var ret = { type_: 'tex-math', p1: buffer.o };
for (var p in buffer) { delete buffer[p]; }
return ret;
}
}
}
},
'9,9': {
transitions: mhchemParser.createTransitions({
'empty': {
'*': {} },
',': {
'*': { action_: 'comma' } },
'else': {
'*': { action_: 'copy' } }
}),
actions: {
'comma': function () { return { type_: 'commaDecimal' }; }
}
},
//#endregion
//
// \pu state machines
//
//#region pu
'pu': {
transitions: mhchemParser.createTransitions({
'empty': {
'*': { action_: 'output' } },
'space$': {
'*': { action_: [ 'output', 'space' ] } },
'{[(|)]}': {
'0|a': { action_: 'copy' } },
'(-)(9)^(-9)': {
'0': { action_: 'number^', nextState: 'a' } },
'(-)(9.,9)(e)(99)': {
'0': { action_: 'enumber', nextState: 'a' } },
'space': {
'0|a': {} },
'pm-operator': {
'0|a': { action_: { type_: 'operator', option: '\\pm' }, nextState: '0' } },
'operator': {
'0|a': { action_: 'copy', nextState: '0' } },
'//': {
'd': { action_: 'o=', nextState: '/' } },
'/': {
'd': { action_: 'o=', nextState: '/' } },
'{...}|else': {
'0|d': { action_: 'd=', nextState: 'd' },
'a': { action_: [ 'space', 'd=' ], nextState: 'd' },
'/|q': { action_: 'q=', nextState: 'q' } }
}),
actions: {
'enumber': function (buffer, m) {
/** @type {ParserOutput[]} */
var ret = [];
if (m[0] === "+-" || m[0] === "+/-") {
ret.push("\\pm ");
} else if (m[0]) {
ret.push(m[0]);
}
if (m[1]) {
mhchemParser.concatArray(ret, mhchemParser.go(m[1], 'pu-9,9'));
if (m[2]) {
if (m[2].match(/[,.]/)) {
mhchemParser.concatArray(ret, mhchemParser.go(m[2], 'pu-9,9'));
} else {
ret.push(m[2]);
}
}
m[3] = m[4] || m[3];
if (m[3]) {
m[3] = m[3].trim();
if (m[3] === "e" || m[3].substr(0, 1) === "*") {
ret.push({ type_: 'cdot' });
} else {
ret.push({ type_: 'times' });
}
}
}
if (m[3]) {
ret.push("10^{"+m[5]+"}");
}
return ret;
},
'number^': function (buffer, m) {
/** @type {ParserOutput[]} */
var ret = [];
if (m[0] === "+-" || m[0] === "+/-") {
ret.push("\\pm ");
} else if (m[0]) {
ret.push(m[0]);
}
mhchemParser.concatArray(ret, mhchemParser.go(m[1], 'pu-9,9'));
ret.push("^{"+m[2]+"}");
return ret;
},
'operator': function (buffer, m, p1) { return { type_: 'operator', kind_: (p1 || m) }; },
'space': function () { return { type_: 'pu-space-1' }; },
'output': function (buffer) {
/** @type {ParserOutput | ParserOutput[]} */
var ret;
var md = mhchemParser.patterns.match_('{(...)}', buffer.d || "");
if (md && md.remainder === '') { buffer.d = md.match_; }
var mq = mhchemParser.patterns.match_('{(...)}', buffer.q || "");
if (mq && mq.remainder === '') { buffer.q = mq.match_; }
if (buffer.d) {
buffer.d = buffer.d.replace(/\u00B0C|\^oC|\^{o}C/g, "{}^{\\circ}C");
buffer.d = buffer.d.replace(/\u00B0F|\^oF|\^{o}F/g, "{}^{\\circ}F");
}
if (buffer.q) { // fraction
buffer.q = buffer.q.replace(/\u00B0C|\^oC|\^{o}C/g, "{}^{\\circ}C");
buffer.q = buffer.q.replace(/\u00B0F|\^oF|\^{o}F/g, "{}^{\\circ}F");
var b5 = {
d: mhchemParser.go(buffer.d, 'pu'),
q: mhchemParser.go(buffer.q, 'pu')
};
if (buffer.o === '//') {
ret = { type_: 'pu-frac', p1: b5.d, p2: b5.q };
} else {
ret = b5.d;
if (b5.d.length > 1 || b5.q.length > 1) {
ret.push({ type_: ' / ' });
} else {
ret.push({ type_: '/' });
}
mhchemParser.concatArray(ret, b5.q);
}
} else { // no fraction
ret = mhchemParser.go(buffer.d, 'pu-2');
}
for (var p in buffer) { delete buffer[p]; }
return ret;
}
}
},
'pu-2': {
transitions: mhchemParser.createTransitions({
'empty': {
'*': { action_: 'output' } },
'*': {
'*': { action_: [ 'output', 'cdot' ], nextState: '0' } },
'\\x': {
'*': { action_: 'rm=' } },
'space': {
'*': { action_: [ 'output', 'space' ], nextState: '0' } },
'^{(...)}|^(-1)': {
'1': { action_: '^(-1)' } },
'-9.,9': {
'0': { action_: 'rm=', nextState: '0' },
'1': { action_: '^(-1)', nextState: '0' } },
'{...}|else': {
'*': { action_: 'rm=', nextState: '1' } }
}),
actions: {
'cdot': function () { return { type_: 'tight cdot' }; },
'^(-1)': function (buffer, m) { buffer.rm += "^{"+m+"}"; },
'space': function () { return { type_: 'pu-space-2' }; },
'output': function (buffer) {
/** @type {ParserOutput | ParserOutput[]} */
var ret = [];
if (buffer.rm) {
var mrm = mhchemParser.patterns.match_('{(...)}', buffer.rm || "");
if (mrm && mrm.remainder === '') {
ret = mhchemParser.go(mrm.match_, 'pu');
} else {
ret = { type_: 'rm', p1: buffer.rm };
}
}
for (var p in buffer) { delete buffer[p]; }
return ret;
}
}
},
'pu-9,9': {
transitions: mhchemParser.createTransitions({
'empty': {
'0': { action_: 'output-0' },
'o': { action_: 'output-o' } },
',': {
'0': { action_: [ 'output-0', 'comma' ], nextState: 'o' } },
'.': {
'0': { action_: [ 'output-0', 'copy' ], nextState: 'o' } },
'else': {
'*': { action_: 'text=' } }
}),
actions: {
'comma': function () { return { type_: 'commaDecimal' }; },
'output-0': function (buffer) {
/** @type {ParserOutput[]} */
var ret = [];
buffer.text_ = buffer.text_ || "";
if (buffer.text_.length > 4) {
var a = buffer.text_.length % 3;
if (a === 0) { a = 3; }
for (var i=buffer.text_.length-3; i>0; i-=3) {
ret.push(buffer.text_.substr(i, 3));
ret.push({ type_: '1000 separator' });
}
ret.push(buffer.text_.substr(0, a));
ret.reverse();
} else {
ret.push(buffer.text_);
}
for (var p in buffer) { delete buffer[p]; }
return ret;
},
'output-o': function (buffer) {
/** @type {ParserOutput[]} */
var ret = [];
buffer.text_ = buffer.text_ || "";
if (buffer.text_.length > 4) {
var a = buffer.text_.length - 3;
for (var i=0; i<a; i+=3) {
ret.push(buffer.text_.substr(i, 3));
ret.push({ type_: '1000 separator' });
}
ret.push(buffer.text_.substr(i));
} else {
ret.push(buffer.text_);
}
for (var p in buffer) { delete buffer[p]; }
return ret;
}
}
}
//#endregion
};
//
// texify: Take MhchemParser output and convert it to TeX
//
/** @type {Texify} */
var texify = {
go: function (input, isInner) { // (recursive, max 4 levels)
if (!input) { return ""; }
var res = "";
var cee = false;
for (var i=0; i < input.length; i++) {
var inputi = input[i];
if (typeof inputi === "string") {
res += inputi;
} else {
res += texify._go2(inputi);
if (inputi.type_ === '1st-level escape') { cee = true; }
}
}
if (!isInner && !cee && res) {
res = "{" + res + "}";
}
return res;
},
_goInner: function (input) {
if (!input) { return input; }
return texify.go(input, true);
},
_go2: function (buf) {
/** @type {undefined | string} */
var res;
switch (buf.type_) {
case 'chemfive':
res = "";
var b5 = {
a: texify._goInner(buf.a),
b: texify._goInner(buf.b),
p: texify._goInner(buf.p),
o: texify._goInner(buf.o),
q: texify._goInner(buf.q),
d: texify._goInner(buf.d)
};
//
// a
//
if (b5.a) {
if (b5.a.match(/^[+\-]/)) { b5.a = "{"+b5.a+"}"; }
res += b5.a + "\\,";
}
//
// b and p
//
if (b5.b || b5.p) {
res += "{\\vphantom{X}}";
res += "^{\\hphantom{"+(b5.b||"")+"}}_{\\hphantom{"+(b5.p||"")+"}}";
res += "{\\vphantom{X}}";
res += "^{\\smash[t]{\\vphantom{2}}\\mathllap{"+(b5.b||"")+"}}";
res += "_{\\vphantom{2}\\mathllap{\\smash[t]{"+(b5.p||"")+"}}}";
}
//
// o
//
if (b5.o) {
if (b5.o.match(/^[+\-]/)) { b5.o = "{"+b5.o+"}"; }
res += b5.o;
}
//
// q and d
//
if (buf.dType === 'kv') {
if (b5.d || b5.q) {
res += "{\\vphantom{X}}";
}
if (b5.d) {
res += "^{"+b5.d+"}";
}
if (b5.q) {
res += "_{\\smash[t]{"+b5.q+"}}";
}
} else if (buf.dType === 'oxidation') {
if (b5.d) {
res += "{\\vphantom{X}}";
res += "^{"+b5.d+"}";
}
if (b5.q) {
res += "{\\vphantom{X}}";
res += "_{\\smash[t]{"+b5.q+"}}";
}
} else {
if (b5.q) {
res += "{\\vphantom{X}}";
res += "_{\\smash[t]{"+b5.q+"}}";
}
if (b5.d) {
res += "{\\vphantom{X}}";
res += "^{"+b5.d+"}";
}
}
break;
case 'rm':
res = "\\mathrm{"+buf.p1+"}";
break;
case 'text':
if (buf.p1.match(/[\^_]/)) {
buf.p1 = buf.p1.replace(" ", "~").replace("-", "\\text{-}");
res = "\\mathrm{"+buf.p1+"}";
} else {
res = "\\text{"+buf.p1+"}";
}
break;
case 'roman numeral':
res = "\\mathrm{"+buf.p1+"}";
break;
case 'state of aggregation':
res = "\\mskip2mu "+texify._goInner(buf.p1);
break;
case 'state of aggregation subscript':
res = "\\mskip1mu "+texify._goInner(buf.p1);
break;
case 'bond':
res = texify._getBond(buf.kind_);
if (!res) {
throw ["MhchemErrorBond", "mhchem Error. Unknown bond type (" + buf.kind_ + ")"];
}
break;
case 'frac':
var c = "\\frac{" + buf.p1 + "}{" + buf.p2 + "}";
res = "\\mathchoice{\\textstyle"+c+"}{"+c+"}{"+c+"}{"+c+"}";
break;
case 'pu-frac':
var d = "\\frac{" + texify._goInner(buf.p1) + "}{" + texify._goInner(buf.p2) + "}";
res = "\\mathchoice{\\textstyle"+d+"}{"+d+"}{"+d+"}{"+d+"}";
break;
case 'tex-math':
res = buf.p1 + " ";
break;
case 'frac-ce':
res = "\\frac{" + texify._goInner(buf.p1) + "}{" + texify._goInner(buf.p2) + "}";
break;
case 'overset':
res = "\\overset{" + texify._goInner(buf.p1) + "}{" + texify._goInner(buf.p2) + "}";
break;
case 'underset':
res = "\\underset{" + texify._goInner(buf.p1) + "}{" + texify._goInner(buf.p2) + "}";
break;
case 'underbrace':
res = "\\underbrace{" + texify._goInner(buf.p1) + "}_{" + texify._goInner(buf.p2) + "}";
break;
case 'color':
res = "{\\color{" + buf.color1 + "}{" + texify._goInner(buf.color2) + "}}";
break;
case 'color0':
res = "\\color{" + buf.color + "}";
break;
case 'arrow':
var b6 = {
rd: texify._goInner(buf.rd),
rq: texify._goInner(buf.rq)
};
var arrow = "\\x" + texify._getArrow(buf.r);
if (b6.rq) { arrow += "[{" + b6.rq + "}]"; }
if (b6.rd) {
arrow += "{" + b6.rd + "}";
} else {
arrow += "{}";
}
res = arrow;
break;
case 'operator':
res = texify._getOperator(buf.kind_);
break;
case '1st-level escape':
res = buf.p1+" "; // &, \\\\, \\hlin
break;
case 'space':
res = " ";
break;
case 'entitySkip':
res = "~";
break;
case 'pu-space-1':
res = "~";
break;
case 'pu-space-2':
res = "\\mkern3mu ";
break;
case '1000 separator':
res = "\\mkern2mu ";
break;
case 'commaDecimal':
res = "{,}";
break;
case 'comma enumeration L':
res = "{"+buf.p1+"}\\mkern6mu ";
break;
case 'comma enumeration M':
res = "{"+buf.p1+"}\\mkern3mu ";
break;
case 'comma enumeration S':
res = "{"+buf.p1+"}\\mkern1mu ";
break;
case 'hyphen':
res = "\\text{-}";
break;
case 'addition compound':
res = "\\,{\\cdot}\\,";
break;
case 'electron dot':
res = "\\mkern1mu \\bullet\\mkern1mu ";
break;
case 'KV x':
res = "{\\times}";
break;
case 'prime':
res = "\\prime ";
break;
case 'cdot':
res = "\\cdot ";
break;
case 'tight cdot':
res = "\\mkern1mu{\\cdot}\\mkern1mu ";
break;
case 'times':
res = "\\times ";
break;
case 'circa':
res = "{\\sim}";
break;
case '^':
res = "uparrow";
break;
case 'v':
res = "downarrow";
break;
case 'ellipsis':
res = "\\ldots ";
break;
case '/':
res = "/";
break;
case ' / ':
res = "\\,/\\,";
break;
default:
assertNever(buf);
throw ["MhchemBugT", "mhchem bug T. Please report."]; // Missing texify rule or unknown MhchemParser output
}
assertString(res);
return res;
},
_getArrow: function (a) {
switch (a) {
case "->": return "rightarrow";
case "\u2192": return "rightarrow";
case "\u27F6": return "rightarrow";
case "<-": return "leftarrow";
case "<->": return "leftrightarrow";
case "<-->": return "rightleftarrows";
case "<=>": return "rightleftharpoons";
case "\u21CC": return "rightleftharpoons";
case "<=>>": return "rightequilibrium";
case "<<=>": return "leftequilibrium";
default:
assertNever(a);
throw ["MhchemBugT", "mhchem bug T. Please report."];
}
},
_getBond: function (a) {
switch (a) {
case "-": return "{-}";
case "1": return "{-}";
case "=": return "{=}";
case "2": return "{=}";
case "#": return "{\\equiv}";
case "3": return "{\\equiv}";
case "~": return "{\\tripledash}";
case "~-": return "{\\mathrlap{\\raisebox{-.1em}{$-$}}\\raisebox{.1em}{$\\tripledash$}}";
case "~=": return "{\\mathrlap{\\raisebox{-.2em}{$-$}}\\mathrlap{\\raisebox{.2em}{$\\tripledash$}}-}";
case "~--": return "{\\mathrlap{\\raisebox{-.2em}{$-$}}\\mathrlap{\\raisebox{.2em}{$\\tripledash$}}-}";
case "-~-": return "{\\mathrlap{\\raisebox{-.2em}{$-$}}\\mathrlap{\\raisebox{.2em}{$-$}}\\tripledash}";
case "...": return "{{\\cdot}{\\cdot}{\\cdot}}";
case "....": return "{{\\cdot}{\\cdot}{\\cdot}{\\cdot}}";
case "->": return "{\\rightarrow}";
case "<-": return "{\\leftarrow}";
case "<": return "{<}";
case ">": return "{>}";
default:
assertNever(a);
throw ["MhchemBugT", "mhchem bug T. Please report."];
}
},
_getOperator: function (a) {
switch (a) {
case "+": return " {}+{} ";
case "-": return " {}-{} ";
case "=": return " {}={} ";
case "<": return " {}<{} ";
case ">": return " {}>{} ";
case "<<": return " {}\\ll{} ";
case ">>": return " {}\\gg{} ";
case "\\pm": return " {}\\pm{} ";
case "\\approx": return " {}\\approx{} ";
case "$\\approx$": return " {}\\approx{} ";
case "v": return " \\downarrow{} ";
case "(v)": return " \\downarrow{} ";
case "^": return " \\uparrow{} ";
case "(^)": return " \\uparrow{} ";
default:
assertNever(a);
throw ["MhchemBugT", "mhchem bug T. Please report."];
}
}
};
//
// Helpers for code anaylsis
// Will show type error at calling position
//
/** @param {number} a */
function assertNever(a) {}
/** @param {string} a */
function assertString(a) {}
server/modules/rendering/markdown-katex/renderer.js
View file @ 44a0f69a
const katex = require('katex')
const chemParse = require('./mhchem')
/* global WIKI */
......@@ -8,6 +9,19 @@ const katex = require('katex')
//
// Includes code from https://github.com/liradb2000/markdown-it-katex
// Add \ce, \pu, and \tripledash to the KaTeX macros.
katex.__defineMacro('\\ce', function(context) {
return chemParse(context.consumeArgs(1)[0], 'ce')
})
katex.__defineMacro('\\pu', function(context) {
return chemParse(context.consumeArgs(1)[0], 'pu')
})
// Needed for \bond for the ~ forms
// Raise by 2.56mu, not 2mu. We're raising a hyphen-minus, U+002D, not
// a mathematical minus, U+2212. So we need that extra 0.56.
katex.__defineMacro('\\tripledash', '{\\vphantom{-}\\raisebox{2.56mu}{$\\mkern2mu' + '\\tiny\\text{-}\\mkern1mu\\text{-}\\mkern1mu\\text{-}\\mkern2mu$}}')
module.exports = {
init (mdinst, conf) {
if (conf.useInline) {
......
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