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| const strftime = require('./src/util/strftime.js')
const _ = require('./src/util/underscore.js')
const isTruthy = require('./src/syntax.js').isTruthy
var escapeMap = {
'&': '&',
'<': '<',
'>': '>',
'"': '"',
"'": '''
}
var unescapeMap = {
'&': '&',
'<': '<',
'>': '>',
'"': '"',
''': "'"
}
var filters = {
'abs': v => Math.abs(v),
'append': (v, arg) => v + arg,
'capitalize': str => stringify(str).charAt(0).toUpperCase() + str.slice(1),
'ceil': v => Math.ceil(v),
'date': (v, arg) => {
if (v === 'now') v = new Date()
return v instanceof Date ? strftime(v, arg) : ''
},
'default': (v, arg) => isTruthy(v) ? v : arg,
'divided_by': (v, arg) => Math.floor(v / arg),
'downcase': v => v.toLowerCase(),
'escape': escape,
'escape_once': str => escape(unescape(str)),
'first': v => v[0],
'floor': v => Math.floor(v),
'join': (v, arg) => v.join(arg),
'last': v => v[v.length - 1],
'lstrip': v => stringify(v).replace(/^\s+/, ''),
'map': (arr, arg) => arr.map(v => v[arg]),
'minus': bindFixed((v, arg) => v - arg),
'modulo': bindFixed((v, arg) => v % arg),
'newline_to_br': v => v.replace(/\n/g, '<br />'),
'plus': bindFixed((v, arg) => Number(v) + Number(arg)),
'prepend': (v, arg) => arg + v,
'remove': (v, arg) => v.split(arg).join(''),
'remove_first': (v, l) => v.replace(l, ''),
'replace': (v, pattern, replacement) =>
stringify(v).split(pattern).join(replacement),
'replace_first': (v, arg1, arg2) => stringify(v).replace(arg1, arg2),
'reverse': v => v.reverse(),
'round': (v, arg) => {
var amp = Math.pow(10, arg || 0)
return Math.round(v * amp, arg) / amp
},
'rstrip': str => stringify(str).replace(/\s+$/, ''),
'size': v => v.length,
'slice': (v, begin, length) =>
v.substr(begin, length === undefined ? 1 : length),
'sort': (v, arg) => v.sort(arg),
'split': (v, arg) => stringify(v).split(arg),
'strip': (v) => stringify(v).trim(),
'strip_html': v => stringify(v).replace(/<\/?\s*\w+\s*\/?>/g, ''),
'strip_newlines': v => stringify(v).replace(/\n/g, ''),
'times': (v, arg) => v * arg,
'truncate': (v, l, o) => {
v = stringify(v)
o = (o === undefined) ? '...' : o
l = l || 16
if (v.length <= l) return v
return v.substr(0, l - o.length) + o
},
'truncatewords': (v, l, o) => {
if (o === undefined) o = '...'
var arr = v.split(' ')
var ret = arr.slice(0, l).join(' ')
if (arr.length > l) ret += o
return ret
},
'uniq': function (arr) {
var u = {}
return (arr || []).filter(val => {
if (u.hasOwnProperty(val)) {
return false
}
u[val] = true
return true
})
},
'upcase': str => stringify(str).toUpperCase(),
'url_encode': encodeURIComponent
}
function escape (str) {
return stringify(str).replace(/&|<|>|"|'/g, m => escapeMap[m])
}
function unescape (str) {
return stringify(str).replace(/&(amp|lt|gt|#34|#39);/g, m => unescapeMap[m])
}
function getFixed (v) {
var p = (v + '').split('.')
return (p.length > 1) ? p[1].length : 0
}
function getMaxFixed (l, r) {
return Math.max(getFixed(l), getFixed(r))
}
function stringify (obj) {
return obj + ''
}
function bindFixed (cb) {
return (l, r) => {
var f = getMaxFixed(l, r)
return cb(l, r).toFixed(f)
}
}
function registerAll (liquid) {
return _.forOwn(filters, (func, name) => liquid.registerFilter(name, func))
}
registerAll.filters = filters
module.exports = registerAll
|