RegexPatternOptions Enum

Namespace: Meziantou.Framework.Language.Regex
Assembly: Meziantou.Framework.Language.Regex.dll
Package: Meziantou.Framework.Language.Regex 4.0.7
Available in package assets: net10.0net11.0

The options that change how a pattern is read.

[Flags]
public enum RegexPatternOptions

Remarks

These are the options an engine is given alongside the pattern, and the ones an inline construct such as (?i) or a JavaScript flag letter can set. Options that only affect matching, such as RegexOptions.Compiled, are not represented because they cannot change the syntax tree.

Fields

Name	Value	Description
`None`	`0`
`IgnoreCase`	`1`	Case-insensitive matching. Set by `(?i)` and by the JavaScript `i` flag.
`Multiline`	`2`	`^` and `$` match at line boundaries. Set by `(?m)` and by the JavaScript `m` flag.
`Singleline`	`4`	`.` matches a line feed. Set by `(?s)`; the JavaScript spelling is `RegexPatternOptions.DotAll`.
`ExplicitCapture`	`8`	Only named groups capture. Set by `(?n)`.
`IgnorePatternWhitespace`	`16`	Whitespace and `#` comments are insignificant. Set by `(?x)`.
`EcmaScript`	`32`	ECMAScript-compatible behaviour, as `RegexOptions.ECMAScript` defines it.
`Unicode`	`64`	The JavaScript `u` flag: the pattern is read as a sequence of code points.
`UnicodeSets`	`128`	The JavaScript `v` flag: `RegexPatternOptions.Unicode` plus class set operations.
`DotAll`	`256`	The JavaScript `s` flag. The .NET spelling is `RegexPatternOptions.Singleline`.
`Global`	`512`	The JavaScript `g` flag. It does not change the syntax tree; it is kept so a literal round-trips.
`Sticky`	`1024`	The JavaScript `y` flag. It does not change the syntax tree; it is kept so a literal round-trips.
`HasIndices`	`2048`	The JavaScript `d` flag. It does not change the syntax tree; it is kept so a literal round-trips.