 |
|
 |
| |
Developer on focus
Anton Zamov is a dipl. engineer with more than 6 years of active professional
experience and many awards ...
read more>>
|
|
 |
 |
 |
|
|
|
|
| |
|
Perl regular expressions character classes
|
\\d A digit, same as [0-9]
\\D A nondigit, same as [^0-9]
\\w A word character (alphanumeric), same as [a-zA-Z_0-9]
\\W A nonword character, [^a-zA-Z_0-9]
\\s A whitespace character, same as [\\t\\n\\r\\f]
\\S A non-whitespace character, [^\\t\\n\\r\\f]
^ Matches at the beginning of the string (or line, if /m used)
$ Matches at the end of the string (or line, if /m used)
\\b Matches at word boundary (between \\w and \\W)
\\B Matches except at word boundary
\\A Matches at the beginning of the string
\\Z Matches at the end of the string or before a newline
\\z Matches only at the end of the string
\\G Matches where previous m//g left off
Maximal Minimal Allowed Range
{n,m} {n,m}? Must occur at least n times but no more than m times
{n,} {n,}? Must occur at least n times
{n} {n}? Must match exactly n times
* *? 0 or more times (same as {0,})
+ +? 1 or more times (same as {1,})
? ?? 0 or 1 time (same as {0,1})
|
About the author of this programming example or tutorial:
Anton Zamov is a software engineer with more than6 years
of active experience in web and software development and design.
Anton Zamov has extensive experience and broad knowledgebase
in C# and JAVA programming and has created a lot of
running e-commerce systems, portals and content management
systems using PHP and other web development technologies.
For more information about Anton Zamov, you may visit the personal web site of
Anton Zamov.
|
|
|
|
|
|
|
|
