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September 30, 2019 16:30
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JavaScript to parse todo.txt (todotxt.org) formatted todos into objects
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const date = '\\d{4}-\\d{2}-\\d{2}', | |
contextre = /\B@\w+/g; | |
projectre = /\B\+\w+/g, | |
tagre = /[\w\-_]+:[\w\-_]+/g; | |
const pluckAll = (raw, re) => { | |
let matches = raw.match(re); | |
if (matches) { | |
matches.forEach(p => { | |
let position = raw.indexOf(p); | |
raw = raw.substr(0, position) + raw.substr(position + p.length); | |
}); | |
} | |
return [raw, matches]; | |
} | |
const parse = raw => { | |
let todo = {}; | |
if (raw.indexOf('x ') === 0) { | |
todo.done = true; | |
raw = raw.substr(2); | |
let completed = new RegExp('^' + date + ' ').exec(raw); | |
if (completed) { | |
todo.completed = completed[0].trim(); | |
raw = raw.substr(11); | |
} | |
} | |
let priority = /^\(([a-z])\) /.exec(raw); | |
if (priority) { | |
todo.priority = priority[1].toUpperCase() | |
raw = raw.substr(4); | |
} | |
let created = new RegExp('^' + date + ' ').exec(raw); | |
if (created) { | |
todo.created = created[0].trim(); | |
raw = raw.substr(11); | |
} | |
let projects = []; | |
[raw, projects] = pluckAll(raw, projectre); | |
if (projects) { | |
todo.projects = projects; | |
} | |
let contexts = []; | |
[raw, contexts] = pluckAll(raw, contextre); | |
if (contexts) { | |
todo.contexts = contexts; | |
} | |
let tags = []; | |
[raw, tags] = pluckAll(raw, tagre); | |
if (tags) { | |
tags.forEach(t => { | |
let [k, v] = t.split(':'); | |
todo[k] = v; | |
}); | |
} | |
raw = raw.trim(); | |
raw = raw.replace(/\s{2,}/g, ' '); | |
todo.text = raw; | |
return todo; | |
} |
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