# Class HelperRegex

OptimaJet.Workflow.Core.Helpers.HelperRegex

Provides [Regex](https://learn.microsoft.com/dotnet/api/system.text.regularexpressions.regex) instances for recognizing ordinary interval units and calendar-prefixed working-time units in Workflow Engine interval expressions.

Namespace: [OptimaJet.Workflow.Core.Helpers](https://api.workflowengine.io/core/OptimaJet.Workflow.Core.Helpers/)

```csharp
public static class HelperRegex
```

## Fields

`public static readonly Regex YearsRegex` 

Matches year components written with the `years`, `year`, or `y` suffix.

`public static readonly Regex MonthsRegex` 

Matches month components written with the `months`, `month`, or `mm` suffix.

`public static readonly Regex DaysRegex` 

Matches day components written with the `days`, `day`, or `d` suffix.

`public static readonly Regex HoursRegex` 

Matches hour components written with the `hours`, `hour`, or `h` suffix.

`public static readonly Regex MinutesRegex` 

Matches minute components written with the `minutes`, `minute`, or `m` suffix.

`public static readonly Regex SecondsRegex` 

Matches second components written with the `seconds`, `second`, or `s` suffix.

`public static readonly Regex MillisecondsRegex` 

Matches millisecond components written with the `milliseconds`, `millisecond`, or `ms` suffix.

`public static readonly Regex CalendarYearsRegex` 

Matches working-year components written with the `wyears`, `wyear`, or `wy` suffix.

`public static readonly Regex CalendarMonthsRegex` 

Matches working-month components written with the `wmonths`, `wmonth`, or `wmm` suffix.

`public static readonly Regex CalendarDaysRegex` 

Matches working-day components written with the `wdays`, `wday`, or `wd` suffix.

`public static readonly Regex CalendarHoursRegex` 

Matches working-hour components written with the `whours`, `whour`, or `wh` suffix.

`public static readonly Regex CalendarMinutesRegex` 

Matches working-minute components written with the `wminutes`, `wminute`, or `wm` suffix.

`public static readonly Regex CalendarValueRegex` 

Matches zero or more digits used as the numeric value of a working-time component.

`public static readonly List<Regex> CombinedRegexList` 

Contains matchers for calendar-prefixed year, month, day, hour, and minute components used to detect expressions that combine working-time and ordinary interval units.

`public static readonly List<Regex> CalendarCombinedRegexList` 

Contains matchers for ordinary year, month, day, hour, and minute components used to detect expressions that combine ordinary and working-time interval units.

`public static readonly Regex IsCalendarRegex` 

Detects calendar-prefixed working-time units in an interval expression.

[Previous HelperParser](https://api.workflowengine.io/core/OptimaJet.Workflow.Core.Helpers/HelperParser/) [Next IWorkflowEngineNetRestriction](https://api.workflowengine.io/core/OptimaJet.Workflow.Core.License/IWorkflowEngineNetRestriction/)