86 lines
3.3 KiB
JavaScript
86 lines
3.3 KiB
JavaScript
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// Converts from Markdown to Pango. This does not support code blocks.
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// For illogical-impulse, code blocks are treated separately, in their own GtkSourceView widgets.
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// Partly inherited from https://github.com/ubunatic/md2pango
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const monospaceFonts = 'JetBrains Mono NF, JetBrains Mono Nerd Font, JetBrains Mono NL, SpaceMono NF, SpaceMono Nerd Font, monospace';
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const replacements = {
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'indents': [
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{ name: 'BULLET', re: /^(\s*)([\*\-]\s)(.*)(\s*)$/, sub: ' $1- $3' },
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{ name: 'NUMBERING', re: /^(\s*[0-9]+\.\s)(.*)(\s*)$/, sub: ' $1 $2' },
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],
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'escapes': [
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{ name: 'COMMENT', re: /<!--.*-->/, sub: '' },
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{ name: 'AMPERSTAND', re: /&/g, sub: '&' },
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{ name: 'LESSTHAN', re: /</g, sub: '<' },
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{ name: 'GREATERTHAN', re: />/g, sub: '>' },
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],
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'sections': [
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{ name: 'H1', re: /^(#\s+)(.*)(\s*)$/, sub: '<span font_weight="bold" size="170%">$2</span>' },
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{ name: 'H2', re: /^(##\s+)(.*)(\s*)$/, sub: '<span font_weight="bold" size="150%">$2</span>' },
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{ name: 'H3', re: /^(###\s+)(.*)(\s*)$/, sub: '<span font_weight="bold" size="125%">$2</span>' },
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{ name: 'H4', re: /^(####\s+)(.*)(\s*)$/, sub: '<span font_weight="bold" size="100%">$2</span>' },
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{ name: 'H5', re: /^(#####\s+)(.*)(\s*)$/, sub: '<span font_weight="bold" size="90%">$2</span>' },
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],
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'styles': [
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{ name: 'BOLD', re: /(\*\*)(\S[\s\S]*?\S)(\*\*)/g, sub: "<b>$2</b>" },
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{ name: 'UND', re: /(__)(\S[\s\S]*?\S)(__)/g, sub: "<u>$2</u>" },
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{ name: 'EMPH', re: /\*(\S.*?\S)\*/g, sub: "<i>$1</i>" },
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// { name: 'EMPH', re: /_(\S.*?\S)_/g, sub: "<i>$1</i>" },
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{ name: 'HEXCOLOR', re: /#([A-Fa-f0-9]{6}|[A-Fa-f0-9]{3})/g, sub: '<span bgcolor="#$1" fgcolor="#000000" font_family="' + monospaceFonts + '">#$1</span>' },
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{ name: 'INLCODE', re: /(`)([^`]*)(`)/g, sub: '<span font_weight="bold" font_family="' + monospaceFonts + '">$2</span>' },
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// { name: 'UND', re: /(__|\*\*)(\S[\s\S]*?\S)(__|\*\*)/g, sub: "<u>$2</u>" },
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],
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}
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const replaceCategory = (text, replaces) => {
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for (const type of replaces) {
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text = text.replace(type.re, type.sub);
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}
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return text;
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}
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// Main function
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export default (text) => {
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let lines = text.split('\n')
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let output = [];
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// Replace
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for (const line of lines) {
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let result = line;
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result = replaceCategory(result, replacements.indents);
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result = replaceCategory(result, replacements.escapes);
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result = replaceCategory(result, replacements.sections);
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result = replaceCategory(result, replacements.styles);
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output.push(result)
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}
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// Remove trailing whitespaces
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output = output.map(line => line.replace(/ +$/, ''))
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return output.join('\n');
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}
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export const markdownTest = `# Heading 1
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## Heading 2
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### Heading 3
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#### Heading 4
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##### Heading 5
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1. yes
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2. no
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127. well
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- Bulletpoint starting with minus
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* Bulletpoint starting with asterisk
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---
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- __Underline__ __ No underline __
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- **Bold** ** No bold **
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- _Italics1_ *Italics2* _ No Italics _
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- A color: #D6BAFF
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- nvidia green: #7ABB08
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- sub-item
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\`\`\`javascript
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// A code block!
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myArray = [23, 123, 43, 54, '6969'];
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console.log('uwu');
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\`\`\`
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- Random instruction thing
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- To update arch lincox, run \`sudo pacman -Syu\`
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`;
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