EReg

The EReg class represents regular expressions.

While basic usage and patterns consistently work across platforms, some more complex operations may yield different results. This is a necessary trade- off to retain a certain level of performance.

EReg instances can be created by calling the constructor, or with the special syntax ~/pattern/modifier

EReg instances maintain an internal state, which is affected by several of its methods.

A detailed explanation of the supported operations is available at https://haxe.org/manual/std-regex.html

Constructor

`inline new (r:String, opt:String)`

Creates a new regular expression with pattern r and modifiers opt.

This is equivalent to the shorthand syntax ~/r/opt

If r or opt are null, the result is unspecified.

Methods

`match (s:String):Bool`

Tells if this regular expression matches String s.

This method modifies the internal state.

If s is null, the result is unspecified.

`matched (n:Int):String`

Returns the matched sub-group n of this EReg.

This method should only be called after this.match or this.matchSub, and then operates on the String of that operation.

The index n corresponds to the n-th set of parentheses in the pattern of this EReg. If no such sub-group exists, an exception is thrown.

If n equals 0, the whole matched substring is returned.

`split (s:String):Array<String>`

Splits String s at all substrings this EReg matches.

If a match is found at the start of s, the result contains a leading empty String "" entry.

If a match is found at the end of s, the result contains a trailing empty String "" entry.

If two matching substrings appear next to each other, the result contains the empty String "" between them.

By default, this method splits s into two parts at the first matched substring. If the global g modifier is in place, s is split at each matched substring.

If s is null, the result is unspecified.