68 lines
1.1 KiB
JavaScript
68 lines
1.1 KiB
JavaScript
/**
|
|
* Misskey Text Analyzer
|
|
*/
|
|
|
|
const elements = [
|
|
require('./elements/bold'),
|
|
require('./elements/url'),
|
|
require('./elements/mention'),
|
|
require('./elements/hashtag'),
|
|
require('./elements/code')
|
|
];
|
|
|
|
function analyze(source) {
|
|
|
|
if (source == '') {
|
|
return null;
|
|
}
|
|
|
|
const tokens = [];
|
|
|
|
function push(token) {
|
|
if (token != null) {
|
|
tokens.push(token);
|
|
source = source.substr(token.content.length);
|
|
}
|
|
}
|
|
|
|
let i = 0;
|
|
|
|
// パース
|
|
while (source != '') {
|
|
const parsed = elements.some(el => {
|
|
if (el.test(source, i)) {
|
|
let tokens = el.parse(source);
|
|
if (!Array.isArray(tokens)) {
|
|
tokens = [tokens];
|
|
}
|
|
tokens.forEach(push);
|
|
return true;
|
|
}
|
|
});
|
|
|
|
if (!parsed) {
|
|
push({
|
|
type: 'text',
|
|
content: source[0]
|
|
});
|
|
}
|
|
|
|
i++;
|
|
}
|
|
|
|
// テキストを纏める
|
|
tokens[0] = [tokens[0]];
|
|
return tokens.reduce((a, b) => {
|
|
if (a[a.length - 1].type == 'text' && b.type == 'text') {
|
|
const tail = a.pop();
|
|
return a.concat({
|
|
type: 'text',
|
|
content: tail.content + b.content
|
|
});
|
|
} else {
|
|
return a.concat(b);
|
|
}
|
|
});
|
|
}
|
|
|
|
module.exports = analyze;
|