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This commit is contained in:
David Bolack
2025-06-03 22:28:39 -05:00
parent 5f2f3a6f3d
commit 13450cc081
3 changed files with 56 additions and 348 deletions
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361
shared/naturalcrit/markdown.js
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@@ -1,18 +1,20 @@
/* eslint-disable max-depth */
/* eslint-disable max-lines */
import _ from 'lodash';
import { Parser as MathParser } from 'expr-eval';
import { marked as Marked } from 'marked';
import MarkedExtendedTables from 'marked-extended-tables';
import MarkedDefinitionLists from 'marked-definition-lists';
import MarkedAlignedParagraphs from 'marked-alignment-paragraphs';
import MarkedNonbreakingSpaces from 'marked-nonbreaking-spaces';
import MarkedSubSuperText from 'marked-subsuper-text';
import { markedVariables,
setMarkedVarPage,
setMarkedVariable,
getMarkedVariable,
clearMarkedVarsQueue } from 'marked-variables';
import { markedSmartypantsLite as MarkedSmartypantsLite } from 'marked-smartypants-lite';
import { gfmHeadingId as MarkedGFMHeadingId, resetHeadings as MarkedGFMResetHeadingIDs } from 'marked-gfm-heading-id';
import { markedEmoji as MarkedEmojis } from 'marked-emoji';
import { romanize } from 'romans';
import writtenNumber from 'written-number';
//Icon fonts included so they can appear in emoji autosuggest dropdown
import diceFont from '../../themes/fonts/iconFonts/diceFont.js';
@@ -23,95 +25,6 @@ import fontAwesome from '../../themes/fonts/iconFonts/fontAwesome.js';
const renderer = new Marked.Renderer();
const tokenizer = new Marked.Tokenizer();
//Limit math features to simple items
const mathParser = new MathParser({
operators : {
// These default to true, but are included to be explicit
add : true,
subtract : true,
multiply : true,
divide : true,
power : true,
round : true,
floor : true,
ceil : true,
abs : true,
sin : false, cos : false, tan : false, asin : false, acos : false,
atan : false, sinh : false, cosh : false, tanh : false, asinh : false,
acosh : false, atanh : false, sqrt : false, cbrt : false, log : false,
log2 : false, ln : false, lg : false, log10 : false, expm1 : false,
log1p : false, trunc : false, join : false, sum : false, indexOf : false,
'-' : false, '+' : false, exp : false, not : false, length : false,
'!' : false, sign : false, random : false, fac : false, min : false,
max : false, hypot : false, pyt : false, pow : false, atan2 : false,
'if' : false, gamma : false, roundTo : false, map : false, fold : false,
filter : false,
remainder : false, factorial : false,
comparison : false, concatenate : false,
logical : false, assignment : false,
array : false, fndef : false
}
});
// Add sign function
mathParser.functions.sign = function (a) {
if(a >= 0) return '+';
return '-';
};
// Add signed function
mathParser.functions.signed = function (a) {
if(a >= 0) return `+${a}`;
return `${a}`;
};
// Add Roman numeral functions
mathParser.functions.toRomans = function (a) {
return romanize(a);
};
mathParser.functions.toRomansUpper = function (a) {
return romanize(a).toUpperCase();
};
mathParser.functions.toRomansLower = function (a) {
return romanize(a).toLowerCase();
};
// Add character functions
mathParser.functions.toChar = function (a) {
if(a <= 0) return a;
const genChars = function (i) {
return (i > 26 ? genChars(Math.floor((i - 1) / 26)) : '') + 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'[(i - 1) % 26];
};
return genChars(a);
};
mathParser.functions.toCharUpper = function (a) {
return mathParser.functions.toChar(a).toUpperCase();
};
mathParser.functions.toCharLower = function (a) {
return mathParser.functions.toChar(a).toLowerCase();
};
// Add word functions
mathParser.functions.toWords = function (a) {
return writtenNumber(a);
};
mathParser.functions.toWordsUpper = function (a) {
return mathParser.functions.toWords(a).toUpperCase();
};
mathParser.functions.toWordsLower = function (a) {
return mathParser.functions.toWords(a).toLowerCase();
};
mathParser.functions.toWordsCaps = function (a) {
const words = mathParser.functions.toWords(a).split(' ');
return words.map((word)=>{
return word.replace(/(?:^|\b|\s)(\w)/g, function(w, index) {
return index === 0 ? w.toLowerCase() : w.toUpperCase();
});
}).join(' ');
};
// Normalize variable names; trim edge spaces and shorten blocks of whitespace to 1 space
const normalizeVarNames = (label)=>{
return label.trim().replace(/\s+/g, ' ');
};
//Processes the markdown within an HTML block if it's just a class-wrapper
renderer.html = function (token) {
let html = token.text;
@@ -411,248 +324,6 @@ const forcedParagraphBreaks = {
}
};
//v=====--------------------< Variable Handling >-------------------=====v// 242 lines
const replaceVar = function(input, hoist=false, allowUnresolved=false) {
const regex = /([!$]?)\[((?!\s*\])(?:\\.|[^\[\]\\])+)\]/g;
const match = regex.exec(input);
const prefix = match[1];
const label = normalizeVarNames(match[2]); // Ensure the label name is normalized as it should be in the var stack.
//v=====--------------------< HANDLE MATH >-------------------=====v//
const mathRegex = /[a-z]+\(|[+\-*/^(),]/g;
const matches = label.split(mathRegex);
const mathVars = matches.filter((match)=>isNaN(match))?.map((s)=>s.trim()); // Capture any variable names
let replacedLabel = label;
if(prefix[0] == '$' && mathVars?.[0] !== label.trim()) {// If there was mathy stuff not captured, let's do math!
mathVars?.forEach((variable)=>{
const foundVar = lookupVar(variable, globalPageNumber, hoist);
if(foundVar && foundVar.resolved && foundVar.content && !isNaN(foundVar.content)) // Only subsitute math values if fully resolved, not empty strings, and numbers
replacedLabel = replacedLabel.replaceAll(new RegExp(`(?<!\\w)(${variable})(?!\\w)`, 'g'), foundVar.content);
});
try {
return mathParser.evaluate(replacedLabel);
} catch (error) {
return undefined; // Return undefined if invalid math result
}
}
//^=====--------------------< HANDLE MATH >-------------------=====^//
const foundVar = lookupVar(label, globalPageNumber, hoist);
if(!foundVar || (!foundVar.resolved && !allowUnresolved))
return undefined; // Return undefined if not found, or parially-resolved vars are not allowed
// url or <url> "title" or 'title' or (title)
const linkRegex = /^([^<\s][^\s]*|<.*?>)(?: ("(?:\\"|[^"])*"|'(?:\\'|[^'])*'|\((?:\\\(|\\\)|[^()])*\)))?$/m;
const linkMatch = linkRegex.exec(foundVar.content);
const href = linkMatch ? linkMatch[1] : null; //TODO: TRIM OFF < > IF PRESENT
const title = linkMatch ? linkMatch[2]?.slice(1, -1) : null;
if(!prefix[0] && href) // Link
return `[${label}](${href}${title ? ` "${title}"` : ''})`;
if(prefix[0] == '!' && href) // Image
return `![${label}](${href} ${title ? ` "${title}"` : ''})`;
if(prefix[0] == '$') // Variable
return foundVar.content;
};
const lookupVar = function(label, index, hoist=false) {
while (index >= 0) {
if(globalVarsList[index]?.[label] !== undefined)
return globalVarsList[index][label];
index--;
}
if(hoist) { //If normal lookup failed, attempt hoisting
index = Object.keys(globalVarsList).length; // Move index to start from last page
while (index >= 0) {
if(globalVarsList[index]?.[label] !== undefined)
return globalVarsList[index][label];
index--;
}
}
return undefined;
};
const processVariableQueue = function() {
let resolvedOne = true;
let finalLoop = false;
while (resolvedOne || finalLoop) { // Loop through queue until no more variable calls can be resolved
resolvedOne = false;
for (const item of varsQueue) {
if(item.type == 'text')
continue;
if(item.type == 'varDefBlock') {
const regex = /[!$]?\[((?!\s*\])(?:\\.|[^\[\]\\])+)\]/g;
let match;
let resolved = true;
let tempContent = item.content;
while (match = regex.exec(item.content)) { // regex to find variable calls
const value = replaceVar(match[0], true);
if(value == undefined)
resolved = false;
else
tempContent = tempContent.replaceAll(match[0], value);
}
if(resolved == true || item.content != tempContent) {
resolvedOne = true;
item.content = tempContent;
}
globalVarsList[globalPageNumber][item.varName] = {
content : item.content,
resolved : resolved
};
if(resolved)
item.type = 'resolved';
}
if(item.type == 'varCallBlock' || item.type == 'varCallInline') {
const value = replaceVar(item.content, true, finalLoop); // final loop will just use the best value so far
if(value == undefined)
continue;
resolvedOne = true;
item.content = value;
item.type = 'text';
}
}
varsQueue = varsQueue.filter((item)=>item.type !== 'resolved'); // Remove any fully-resolved variable definitions
if(finalLoop)
break;
if(!resolvedOne)
finalLoop = true;
}
varsQueue = varsQueue.filter((item)=>item.type !== 'varDefBlock');
};
function MarkedVariables() {
return {
hooks : {
preprocess(src) {
const codeBlockSkip = /^(?: {4}[^\n]+(?:\n(?: *(?:\n|$))*)?)+|^ {0,3}(`{3,}(?=[^`\n]*(?:\n|$))|~{3,})(?:[^\n]*)(?:\n|$)(?:|(?:[\s\S]*?)(?:\n|$))(?: {0,3}\2[~`]* *(?=\n|$))|`[^`]*?`/;
const blockDefRegex = /^[!$]?\[((?!\s*\])(?:\\.|[^\[\]\\])+)\]:(?!\() *((?:\n? *[^\s].*)+)(?=\n+|$)/; //Matches 3, [4]:5
const blockCallRegex = /^[!$]?\[((?!\s*\])(?:\\.|[^\[\]\\])+)\](?=\n|$)/; //Matches 6, [7]
const inlineDefRegex = /([!$]?\[((?!\s*\])(?:\\.|[^\[\]\\])+)\])\(([^\n]+)\)/; //Matches 8, 9[10](11)
const inlineCallRegex = /[!$]?\[((?!\s*\])(?:\\.|[^\[\]\\])+)\](?!\()/; //Matches 12, [13]
// Combine regexes and wrap in parens like so: (regex1)|(regex2)|(regex3)|(regex4)
const combinedRegex = new RegExp([codeBlockSkip, blockDefRegex, blockCallRegex, inlineDefRegex, inlineCallRegex].map((s)=>`(${s.source})`).join('|'), 'gm');
let lastIndex = 0;
let match;
while ((match = combinedRegex.exec(src)) !== null) {
// Format any matches into tokens and store
if(match.index > lastIndex) { // Any non-variable stuff
varsQueue.push(
{ type : 'text',
varName : null,
content : src.slice(lastIndex, match.index)
});
}
if(match[1]) {
varsQueue.push(
{ type : 'text',
varName : null,
content : match[0]
});
}
if(match[3]) { // Block Definition
const label = match[4] ? normalizeVarNames(match[4]) : null;
const content = match[5] ? match[5].trim().replace(/[ \t]+/g, ' ') : null; // Normalize text content (except newlines for block-level content)
varsQueue.push(
{ type : 'varDefBlock',
varName : label,
content : content
});
}
if(match[6]) { // Block Call
const label = match[7] ? normalizeVarNames(match[7]) : null;
varsQueue.push(
{ type : 'varCallBlock',
varName : label,
content : match[0]
});
}
if(match[8]) { // Inline Definition
const label = match[10] ? normalizeVarNames(match[10]) : null;
let content = match[11] || null;
// In case of nested (), find the correct matching end )
let level = 0;
let i;
for (i = 0; i < content.length; i++) {
if(content[i] === '\\') {
i++;
} else if(content[i] === '(') {
level++;
} else if(content[i] === ')') {
level--;
if(level < 0)
break;
}
}
combinedRegex.lastIndex = combinedRegex.lastIndex - (content.length - i);
content = content.slice(0, i).trim().replace(/\s+/g, ' ');
varsQueue.push(
{ type : 'varDefBlock',
varName : label,
content : content
});
varsQueue.push(
{ type : 'varCallInline',
varName : label,
content : match[9]
});
}
if(match[12]) { // Inline Call
const label = match[13] ? normalizeVarNames(match[13]) : null;
varsQueue.push(
{ type : 'varCallInline',
varName : label,
content : match[0]
});
}
lastIndex = combinedRegex.lastIndex;
}
if(lastIndex < src.length) {
varsQueue.push(
{ type : 'text',
varName : null,
content : src.slice(lastIndex)
});
}
processVariableQueue();
const output = varsQueue.map((item)=>item.content).join('');
varsQueue = []; // Must clear varsQueue because custom HTML renderer uses Marked.parse which will preprocess again without clearing the array
return output;
}
}
};
};
//^=====--------------------< Variable Handling >-------------------=====^//
// Emoji options
// To add more icon fonts, need to do these things
// 1) Add the font file as .woff2 to themes/fonts/iconFonts folder
@@ -678,7 +349,7 @@ const tableTerminators = [
` *{{[^{\n]*\n.*?\n}}` // mustacheDiv
];
Marked.use(MarkedVariables());
Marked.use(markedVariables());
Marked.use(MarkedDefinitionLists());
Marked.use({ extensions : [forcedParagraphBreaks, mustacheSpans, mustacheDivs, mustacheInjectInline] });
Marked.use(mustacheInjectBlock);
@@ -805,22 +476,16 @@ const mergeHTMLTags = (originalTags, newTags)=>{
};
};
const globalVarsList = {};
let varsQueue = [];
let globalPageNumber = 0;
const Markdown = {
marked : Marked,
render : (rawBrewText, pageNumber=0)=>{
const lastPageNumber = pageNumber > 0 ? globalVarsList[pageNumber - 1].HB_pageNumber.content : 0;
globalVarsList[pageNumber] = { //Reset global links for current page, to ensure values are parsed in order
'HB_pageNumber' : { //Add document variables for this page
content : !isNaN(Number(lastPageNumber)) ? Number(lastPageNumber) + 1 : lastPageNumber,
resolved : true
}
};
varsQueue = []; //Could move into MarkedVariables()
globalPageNumber = pageNumber;
const lastPageNumber = pageNumber > 0 ? getMarkedVariable(pageNumber - 1, 'HB_pageNumber.content') : 0;
setMarkedVariable(pageNumber, //Reset global links for current page, to ensure values are parsed in order
'HB_pageNumber', //Add document variables for this page
!isNaN(Number(lastPageNumber)) ? Number(lastPageNumber) + 1 : lastPageNumber
);
clearMarkedVarsQueue(); //Could move into MarkedVariables()
setMarkedVarPage(pageNumber);
if(pageNumber==0) {
MarkedGFMResetHeadingIDs();
}