mirror of
https://github.com/naturalcrit/homebrewery.git
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move codemirror extensions into their own folder
This commit is contained in:
Víctor Losada Hernández
@@ -0,0 +1,293 @@
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import { HighlightStyle } from '@codemirror/language';
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import { tags } from '@lezer/highlight';
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// Making the tokens
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const customTags = {
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pageLine : 'pageLine', // .cm-pageLine
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snippetLine : 'snippetLine', // .cm-snippetLine
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columnSplit : 'columnSplit', // .cm-columnSplit
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block : 'block', // .cm-block
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inlineBlock : 'inline-block', // .cm-inline-block
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injection : 'injection', // .cm-injection
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emoji : 'emoji', // .cm-emoji
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superscript : 'superscript', // .cm-superscript
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subscript : 'subscript', // .cm-subscript
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definitionList : 'definitionList', // .cm-definitionList
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definitionTerm : 'definitionTerm', // .cm-definitionTerm
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definitionDesc : 'definitionDesc', // .cm-definitionDesc
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definitionColon : 'definitionColon', // .cm-definitionColon
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//CSS
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variable : 'variable',
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};
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export function tokenizeCustomMarkdown(text) {
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const tokens = [];
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const lines = text.split('\n');
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//tokens without a `from` or `to` are interpreted by the custom plugin as line tokens
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lines.forEach((lineText, lineNumber)=>{
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// --- Page / snippet lines ---
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if(/^(?=\\page(?:break)?(?: *{[^\n{}]*})?$)/m.test(lineText)) tokens.push({ line: lineNumber, type: customTags.pageLine });
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if(/^\\snippet\ .*$/.test(lineText)) tokens.push({ line: lineNumber, type: customTags.snippetLine });
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if(/^\\column(?:break)?$/.test(lineText)) tokens.push({ line: lineNumber, type: customTags.columnSplit });
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// --- Emoji ---
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if(/:.\w+?:/.test(lineText)) {
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const emojiRegex = /(:\w+?:)/g;
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let match;
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while ((match = emojiRegex.exec(lineText)) !== null) {
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tokens.push({
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line : lineNumber,
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type : customTags.emoji,
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from : match.index,
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to : match.index + match[0].length,
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});
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}
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}
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// --- Superscript / Subscript ---
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if(/\^/.test(lineText)) {
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let startIndex = lineText.indexOf('^');
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const superRegex = /\^(?!\s)(?=([^\n\^]*[^\s\^]))\1\^/gy;
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const subRegex = /\^\^(?!\s)(?=([^\n\^]*[^\s\^]))\1\^\^/gy;
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while (startIndex >= 0) {
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superRegex.lastIndex = subRegex.lastIndex = startIndex;
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let match = subRegex.exec(lineText);
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let type = customTags.subscript;
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if(!match) {
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match = superRegex.exec(lineText);
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type = customTags.superscript;
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}
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if(match) {
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tokens.push({
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line : lineNumber,
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type,
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from : match.index,
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to : match.index + match[0].length,
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});
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}
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startIndex = lineText.indexOf(
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'^',
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Math.max(startIndex + 1, superRegex.lastIndex || 0, subRegex.lastIndex || 0),
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);
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}
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}
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// --- single line def list ---
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const singleLineRegex = /^(?=.*[^:])(.+?)(\s*)(::)([^\n]*)$/dmy;
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const match = singleLineRegex.exec(lineText);
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if(match) {
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const [full, term, spaces, colons, desc] = match;
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let offset = 0;
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tokens.push({
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line : lineNumber,
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type : customTags.definitionList,
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});
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// Term
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tokens.push({
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line : lineNumber,
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type : customTags.definitionTerm,
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from : offset,
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to : offset + term.length,
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});
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offset += term.length;
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// Spaces before ::
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if(spaces) {
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offset += spaces.length;
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}
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// :: colons
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tokens.push({
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line : lineNumber,
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type : customTags.definitionColon,
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from : offset,
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to : offset + colons.length,
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});
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offset += colons.length;
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// Definition
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tokens.push({
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line : lineNumber,
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type : customTags.definitionDesc,
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from : offset,
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to : offset + desc.length,
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});
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}
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// --- multiline def list ---
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if(!/^::/.test(lines[lineNumber]) && lineNumber + 1 < lines.length && /^::/.test(lines[lineNumber + 1])) {
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const startLine = lineNumber;
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const defs = [];
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let endLine = startLine;
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// collect all following :: definitions
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for (let i = lineNumber + 1; i < lines.length; i++) {
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const nextLine = lines[i];
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const onlyColonsMatch = /^:*$/.test(nextLine);
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const defMatch = /^(::)(.+)$/.exec(nextLine);
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if(!onlyColonsMatch && defMatch) {
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defs.push({ colons: defMatch[1], desc: defMatch[2], line: i });
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endLine = i;
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} else break;
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}
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if(defs.length > 0 && lineText.trim().length > 0) {
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tokens.push({
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line : startLine,
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type : customTags.definitionList,
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});
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// term
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tokens.push({
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line : startLine,
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type : customTags.definitionTerm,
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from : 0,
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to : lineText.length,
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});
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// definitions
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defs.forEach((d)=>{
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tokens.push({
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line : d.line,
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type : customTags.definitionList,
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});
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tokens.push({
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line : d.line,
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type : customTags.definitionColon,
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from : 0,
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to : d.colons.length,
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});
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tokens.push({
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line : d.line,
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type : customTags.definitionDesc,
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from : d.colons.length,
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to : d.colons.length + d.desc?.length,
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});
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});
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}
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}
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if(lineText.includes('{') && lineText.includes('}')) {
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const injectionRegex = /(?:^|[^{\n])({(?=((?:[:=](?:"[\w,\-()#%. ]*"|[\w\-()#%.]*)|[^"':={}\s]*)*))\2})/gm;
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let match;
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while ((match = injectionRegex.exec(lineText)) !== null) {
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tokens.push({
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line : lineNumber,
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from : match.index,
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to : match.index + match[1].length,
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type : customTags.injection,
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});
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}
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}
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if(lineText.includes('{{') && lineText.includes('}}')) {
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// Inline blocks: single-line {{…}}
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const spanRegex = /{{(?=((?:[:=](?:"[\w,\-()#%. ]*"|[\w\-()#%.]*)|[^"':={}\s]*)*))\1 *|}}/g;
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let match;
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let blockCount = 0;
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while ((match = spanRegex.exec(lineText)) !== null) {
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if(match[0].startsWith('{{')) {
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blockCount += 1;
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} else {
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blockCount -= 1;
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}
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if(blockCount < 0) {
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blockCount = 0;
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continue;
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}
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tokens.push({
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line : lineNumber,
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from : match.index,
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to : match.index + match[0].length,
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type : customTags.inlineBlock,
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});
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}
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} else if(lineText.trimLeft().startsWith('{{') || lineText.trimLeft().startsWith('}}')) {
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// Highlight block divs {{\n Content \n}}
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let endCh = lineText.length + 1;
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const match = lineText.match(
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/^ *{{(?=((?:[:=](?:"[\w,\-()#%. ]*"|[\w\-()#%.]*)|[^"':={}\s]*)*))\1 *$|^ *}}$/,
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);
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if(match) endCh = match.index + match[0].length;
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tokens.push({ line: lineNumber, type: customTags.block });
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}
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});
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return tokens;
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}
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export function tokenizeCustomCSS(text) {
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const tokens = [];
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const lines = text.split('\n');
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lines.forEach((lineText, lineNumber)=>{
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if(/--[a-zA-Z0-9-_]+/gm.test(lineText)) {
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const varRegex =/--[a-zA-Z0-9-_]+/gm;
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let match;
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while ((match = varRegex.exec(lineText)) !== null) {
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tokens.push({
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line : lineNumber,
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from : match.index +1,
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to : match.index + match.length[1] +1,
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type : customTags.varProperty,
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});
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}
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}
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});
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return tokens;
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}
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//assign classes to tags provided by lezer, not unlike the function above
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export const customHighlightStyle = HighlightStyle.define([
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{ tag: tags.heading, class: 'cm-header' },
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{ tag: tags.heading1, class: 'cm-header cm-header-1' },
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{ tag: tags.heading2, class: 'cm-header cm-header-2' },
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{ tag: tags.heading3, class: 'cm-header cm-header-3' },
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{ tag: tags.heading4, class: 'cm-header cm-header-4' },
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{ tag: tags.heading5, class: 'cm-header cm-header-5' },
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{ tag: tags.heading6, class: 'cm-header cm-header-6' },
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{ tag: tags.link, class: 'cm-link' },
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{ tag: tags.string, class: 'cm-string' },
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{ tag: tags.url, class: 'cm-string cm-url' },
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{ tag: tags.list, class: 'cm-list' },
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{ tag: tags.strong, class: 'cm-strong' },
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{ tag: tags.emphasis, class: 'cm-em' },
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{ tag: tags.quote, class: 'cm-quote' },
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{ tag: tags.comment, class: 'cm-comment' },
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{ tag: tags.monospace, class: 'cm-comment' },
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//css tags
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{ tag: tags.tagName, class: 'cm-tag' },
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{ tag: tags.className, class: 'cm-class' },
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{ tag: tags.propertyName, class: 'cm-property' },
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{ tag: tags.attributeValue, class: 'cm-value' },
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{ tag: tags.keyword, class: 'cm-keyword' },
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{ tag: tags.atom, class: 'cm-atom' },
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{ tag: tags.integer, class: 'cm-integer' },
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{ tag: tags.unit, class: 'cm-unit' },
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{ tag: tags.color, class: 'cm-color' },
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{ tag: tags.paren, class: 'cm-paren' },
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{ tag: tags.variableName, class: 'cm-variable' },
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{ tag: tags.invalid, class: 'cm-error' },
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]);
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