73 lines
2.5 KiB
JavaScript
Executable File
73 lines
2.5 KiB
JavaScript
Executable File
// ____ _ ____
|
|
// / ___|_ __ __ _ ___| | _| _ \ _____ ___ __
|
|
// | | | '__/ _` |/ __| |/ / | | |/ _ \ \ /\ / / '_ \
|
|
// | |___| | | (_| | (__| <| |_| | (_) \ V V /| | | |
|
|
// \____|_| \__,_|\___|_|\_\____/ \___/ \_/\_/ |_| |_|
|
|
//
|
|
//
|
|
// _ __ __ _ _ __ ___ ___ _ __
|
|
// | '_ \ / _` | '__/ __|/ _ \ '__|
|
|
// | |_) | (_| | | \__ \ __/ |
|
|
// | .__/ \__,_|_| |___/\___|_|
|
|
// |_|
|
|
|
|
const capture = "([a-z0-9:()-](?:.*[a-zA-Z:().!-])?)";
|
|
const skipSpace = "\\s*";
|
|
|
|
const htmlEscapeRegex = /[&<>"'`]/g; // used to escape html characters
|
|
|
|
/**
|
|
* @type {Array.string[]}
|
|
*
|
|
* The order of the elements of this array matters.
|
|
*/
|
|
const opcodes = [
|
|
["(^|\\n)=", "($|\\n)", "$1<h1>$2</h1>$3"], // lines with large headline begins with =
|
|
["(^|\\n)==", "($|\\n)", "$1<h2>$2</h2>$3"], // lines with sub-headline begins with ==
|
|
["---", "---", "<span class='strike'>$1</span>"], // ---trike through---
|
|
["___", "___", "<span class='underline'>$1</span>"], // ___underline___
|
|
["(?:[,]{3})", "(?:[,]{3})", "<span class='undercurl'>$1</span>"], // ,,,undercurl,,,
|
|
["(?:[(]{2})", "(?:[)]{2})", "<span class='faint'>$1</span>"], // ((faint text))
|
|
["_", "_", "<span class='italic'>$1</span>"], // _italic_
|
|
["\\*", "\\*", "<span class='bold'>$1</span>"], // *bold*
|
|
["\\[\\[([a-zA-Z0-9_ ]+)\\[\\[", "\\]\\]", "<span class='$1'>$2</span>"], // [[custom_class[[text with custom class]]
|
|
];
|
|
/** @type{Array.Array.<Regexp,string>} */
|
|
const regexes = [];
|
|
|
|
//
|
|
// Pre-compile all regexes
|
|
for (const [left, right, replacement] of opcodes) {
|
|
regexes.push([new RegExp(left + skipSpace + capture + skipSpace + right, "gi"), replacement]);
|
|
}
|
|
|
|
/** @param {string} text */
|
|
export function crackdown(text) {
|
|
text.replace(htmlEscapeRegex, (c) => {
|
|
switch (c) {
|
|
case "&":
|
|
return "&";
|
|
case "<":
|
|
return "<";
|
|
case ">":
|
|
return ">";
|
|
case '"':
|
|
return """;
|
|
case "'":
|
|
return "'";
|
|
case "`":
|
|
return "`";
|
|
default:
|
|
return c;
|
|
}
|
|
});
|
|
for (const k in regexes) {
|
|
const [regex, replacement] = regexes[k];
|
|
text = text.replace(regex, replacement);
|
|
}
|
|
|
|
console.debug("crack output", text);
|
|
|
|
return text;
|
|
}
|