HaxeDoc2

• |”OR” statement.

For example, the following regular expression matches valid email addresses:

1 ̃/[A-Z0-9._\%-]+@[A-Z0-9.-]+\.[A-Z][A-Z][A-Z]?/i;

Please notice that theiat the end of the regular expression is aflagthat enables case-insensitive

matching.

The possible flags are the following:

• icase insensitive matching


• gglobal replace or split, see below


• mmultiline matching,ˆand$represent the beginning and end of a line


• sthe dot.will also match newlines(Neko, C++, PHP and Java targets only)


• uuse UTF-8 matching(Neko and C++ targets only)

10.3.1 Matching.......................................

Probably one of the most common uses for regular expressions is checking whether a string

matches the specific pattern. Thematchmethod of a regular expression object can be used to do

that:

1 class Main {

2 static function main() {

3 var r = ̃/world/;

4 var str = "hello world";

5 // true : ’world’ was found inthe string

6 trace(r.match(str));

7 trace(r.match("hello !")); //false

8 }

9 }

10.3.2 Groups........................................

Specific information can be extracted from a matched string by usinggroups. Ifmatch()returns
true, we can get groups using thematched(X)method, where X is the number of a group
defined by regular expression pattern:
1 class Main {
2 static function main() {
3 var str = "Nicolas is 26 yearsold";
4 var r =
5 ̃/([A-Za-z]+) is ([0-9]+) yearsold/;
6 r.match(str);
7 trace(r.matched(1)); // "Nicolas"
8 trace(r.matched(2)); // "26"
9 }
10 }

Note that group numbers start with 1 andr.matched(0)will always return the whole

matched substring.

Ther.matchedPos()will return the position of this substring in the original string: