>> English << | česky | Deutsch | Español ZVON > Tutorials > Regular Expressions Tutorial
Intro / Search / ZVON
>> Example 18 << | Prev | Next | Contents | Regular Expressions

Description

\w matches any word character ( alphanumeric plus "_" ). In some languages these letter abbreviations are not recognized. Use character classes ("[A-z0-9_]") instead (Case 5).

Source

A1 B2 c3 d_4 e:5 ffGG77--__--

Case 1

Regular Expression: \w
First match:A1 B2 c3 d_4 e:5 ffGG77--__--
All matches:A1 B2 c3 d_4 e:5 ffGG77--__--

Case 2

Regular Expression: \w*
First match:A1 B2 c3 d_4 e:5 ffGG77--__--
All matches:A1 B2 c3 d_4 e:5 ffGG77--__--

Case 3

Regular Expression: [a-z]\w*
First match:A1 B2 c3 d_4 e:5 ffGG77--__--
All matches:A1 B2 c3 d_4 e:5 ffGG77--__--

Case 4

Regular Expression: \w{5}
First match:A1 B2 c3 d_4 e:5 ffGG77--__--
All matches:A1 B2 c3 d_4 e:5 ffGG77--__--

Case 5

Regular Expression: [A-z0-9_]
First match:A1 B2 c3 d_4 e:5 ffGG77--__--
All matches:A1 B2 c3 d_4 e:5 ffGG77--__--