devextreme
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JavaScript/TypeScript Component Suite for Responsive Web Development
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JavaScript
/**
* DevExtreme (cjs/__internal/ui/date_box/date_box.mask.parts.js)
* Version: 25.2.8
* Build date: Mon Jun 08 2026
*
* Copyright (c) 2012 - 2026 Developer Express Inc. ALL RIGHTS RESERVED
* Read about DevExtreme licensing here: https://js.devexpress.com/Licensing/
*/
;
Object.defineProperty(exports, "__esModule", {
value: true
});
exports.renderDateParts = exports.getDatePartIndexByPosition = void 0;
var _date = require("../../../common/core/localization/ldml/date.parser");
var _common = require("../../../core/utils/common");
var _extend = require("../../../core/utils/extend");
var _math = require("../../../core/utils/math");
const getLimits = (pattern, date, forcedPattern) => {
const limits = {
y: {
min: 0,
max: 9999
},
M: {
min: 1,
max: 12
},
L: {
min: 1,
max: 12
},
d: {
min: 1,
max: 31
},
dM: {
min: 1,
max: new Date(date.getFullYear(), date.getMonth() + 1, 0).getDate()
},
E: {
min: 0,
max: 6
},
H: {
min: 0,
max: 23
},
h: {
min: 1,
max: 12
},
m: {
min: 0,
max: 59
},
s: {
min: 0,
max: 59
},
S: {
min: 0,
max: 999
},
a: {
min: 0,
max: 1
},
x: {
min: 0,
max: 0
}
};
return limits[forcedPattern ?? pattern] ?? {
min: 0,
max: 0
}
};
const monthGetter = date => date.getMonth() + 1;
const monthSetter = (date, value) => {
const day = date.getDate();
const monthLimits = getLimits("M", date);
const newValue = (0, _math.fitIntoRange)(+value, monthLimits.min, monthLimits.max);
date.setMonth(newValue - 1, 1);
const {
min: min,
max: max
} = getLimits("dM", date);
const newDay = (0, _math.fitIntoRange)(day, min, max);
date.setDate(newDay)
};
const PATTERN_GETTERS = {
a: date => date.getHours() < 12 ? 0 : 1,
E: "getDay",
y: "getFullYear",
M: monthGetter,
L: monthGetter,
d: "getDate",
H: "getHours",
h: "getHours",
m: "getMinutes",
s: "getSeconds",
S: "getMilliseconds",
x: "getTimezoneOffset"
};
const PATTERN_SETTERS = (0, _extend.extend)({}, (0, _date.getPatternSetters)(), {
a: (date, value) => {
const hours = date.getHours();
const current = hours >= 12;
if (current === !!+value) {
return
}
date.setHours((hours + 12) % 24)
},
d: (date, value) => {
const lastDayInMonth = getLimits("dM", date).max;
if (+value > lastDayInMonth) {
date.setMonth(date.getMonth() + 1)
}
date.setDate(+value)
},
h: (date, value) => {
const isPM = date.getHours() >= 12;
date.setHours(+value % 12 + (isPM ? 12 : 0))
},
M: monthSetter,
L: monthSetter,
E: (date, value) => {
if (+value < 0) {
return
}
date.setDate(date.getDate() - date.getDay() + +value)
},
y: (date, value) => {
const currentYear = date.getFullYear();
const valueLength = String(value).length;
const maxLimitLength = String(getLimits("y", date).max).length;
const yearPrefix = String(currentYear).substr(0, maxLimitLength - valueLength);
const newValue = parseInt(yearPrefix + value, 10);
date.setFullYear(newValue)
},
x: date => date
});
const getPatternGetter = patternChar => PATTERN_GETTERS[patternChar] ?? (() => patternChar);
const renderDateParts = (text, regExpInfo) => {
const result = regExpInfo.regexp.exec(text) ?? [];
let start = 0;
let end = 0;
const sections = [];
for (let i = 1; i < result.length; i += 1) {
start = end;
end = start + result[i].length;
const pattern = regExpInfo.patterns[i - 1].replace(/^'|'$/g, "");
const getter = getPatternGetter(pattern[0]);
sections.push({
index: i - 1,
isStub: pattern === result[i],
caret: {
start: start,
end: end
},
pattern: pattern,
text: result[i],
limits: (date, forcedPattern) => getLimits(pattern[0], date, forcedPattern),
setter: PATTERN_SETTERS[pattern[0]] ?? _common.noop,
getter: getter
})
}
return sections
};
exports.renderDateParts = renderDateParts;
const getDatePartIndexByPosition = (dateParts, position) => {
for (let i = 0; i < dateParts.length; i += 1) {
const caretInGroup = dateParts[i].caret.end >= position;
if (!dateParts[i].isStub && caretInGroup) {
return i
}
}
return null
};
exports.getDatePartIndexByPosition = getDatePartIndexByPosition;