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
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.
matchedPos ():{pos:Int, len:Int}
Returns the position and length of the last matched substring, within
the String which was last used as argument to this.match
or
this.matchSub
.
If the most recent call to this.match
or this.matchSub
did not
match anything, the result is unspecified.
If the global g modifier was in place for the matching, the position and length of the leftmost substring is returned.