_formatLimit.js
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'use strict';
var TIME = /^(\d\d):(\d\d):(\d\d)(\.\d+)?(z|[+-]\d\d:\d\d)?$/i;
var DATE_TIME_SEPARATOR = /t|\s/i;
var COMPARE_FORMATS = {
date: compareDate,
time: compareTime,
'date-time': compareDateTime
};
var $dataMetaSchema = {
type: 'object',
required: [ '$data' ],
properties: {
$data: {
type: 'string',
anyOf: [
{ format: 'relative-json-pointer' },
{ format: 'json-pointer' }
]
}
},
additionalProperties: false
};
module.exports = function (minMax) {
var keyword = 'format' + minMax;
return function defFunc(ajv) {
defFunc.definition = {
type: 'string',
inline: require('./dotjs/_formatLimit'),
statements: true,
errors: 'full',
dependencies: ['format'],
metaSchema: {
anyOf: [
{type: 'string'},
$dataMetaSchema
]
}
};
ajv.addKeyword(keyword, defFunc.definition);
ajv.addKeyword('formatExclusive' + minMax, {
dependencies: ['format' + minMax],
metaSchema: {
anyOf: [
{type: 'boolean'},
$dataMetaSchema
]
}
});
extendFormats(ajv);
return ajv;
};
};
function extendFormats(ajv) {
var formats = ajv._formats;
for (var name in COMPARE_FORMATS) {
var format = formats[name];
// the last condition is needed if it's RegExp from another window
if (typeof format != 'object' || format instanceof RegExp || !format.validate)
format = formats[name] = { validate: format };
if (!format.compare)
format.compare = COMPARE_FORMATS[name];
}
}
function compareDate(d1, d2) {
if (!(d1 && d2)) return;
if (d1 > d2) return 1;
if (d1 < d2) return -1;
if (d1 === d2) return 0;
}
function compareTime(t1, t2) {
if (!(t1 && t2)) return;
t1 = t1.match(TIME);
t2 = t2.match(TIME);
if (!(t1 && t2)) return;
t1 = t1[1] + t1[2] + t1[3] + (t1[4]||'');
t2 = t2[1] + t2[2] + t2[3] + (t2[4]||'');
if (t1 > t2) return 1;
if (t1 < t2) return -1;
if (t1 === t2) return 0;
}
function compareDateTime(dt1, dt2) {
if (!(dt1 && dt2)) return;
dt1 = dt1.split(DATE_TIME_SEPARATOR);
dt2 = dt2.split(DATE_TIME_SEPARATOR);
var res = compareDate(dt1[0], dt2[0]);
if (res === undefined) return;
return res || compareTime(dt1[1], dt2[1]);
}