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Topic: Regexp


In the News (Sat 26 Dec 09)

  
 QRegExp Class
A regexp can be used to replace a pattern with a piece of text, for example replace all occurrences of '&' with 'andamp;' except where the '&' is already followed by 'amp;'.
The regexp ^\d\d?$ means "from the beginning of the string match one digit followed by zero or one digits and then the end of the string".
For a given regexp string, R, exactMatch("R") is the equivalent of search("^R$") since exactMatch() effectively encloses the regexp in the start of string and end of string anchors, except that it sets matchedLength() differently.
doc.trolltech.com /3.3/qregexp.html   (5057 words)

  
 Qt 4.0: QRegExp Class Reference
A regexp can be used to replace a pattern with a piece of text, for example replace all occurrences of 'and' with 'andamp;' except where the 'and' is already followed by 'amp;'.
The setPatternSyntax() function is used to switch between regexp and wildcard mode.
For a given regexp string R, exactMatch("R") is the equivalent of indexIn("^R$") since exactMatch() effectively encloses the regexp in the start of string and end of string anchors, except that it sets matchedLength() differently.
doc.trolltech.com /qregexp.html   (4935 words)

  
 Rx - Posix Basic Regular Expressions
Regexps are typically used by comparing them to a string to see if that string matches the pattern, or by searching within a string for a substring that matches.
In the simplest cases, a regexp is just a literal string that must match exactly.
These functions use the same numbering scheme for subexpressions as backreferences, with the additional rule that subexpression 0 is defined to be the whole regexp.
www.dc.turkuamk.fi /docs/gnu/rx/rx_3.html   (917 words)

  
 DevGuru JavaScript OBJECT: RegExp
The RegExp object contains the pattern of a regular expression, and is used to match strings using its methods and properties.
The predefined RegExp object has static properties set whenever a regular expression is used, as well as user-defined ones for individual objects.
In both cases you need to specify the text pattern of the regular expression, and optionally one of the three possible flags: 'g' for a global match, 'i' to ignore case, or 'gi' for a case-insensitive global match.
www.devguru.com /Technologies/ecmascript/quickref/regexp.html   (883 words)

  
 Class: Regexp
(in which case that regexp’s options are propagated, and new options may not be specified (a change as of Ruby 1.8).
The patterns can be Regexp objects, in which case their options will be preserved, or Strings.
Equality—Two regexps are equal if their patterns are identical, they have the same character set code, and their
www.ruby-doc.org /core/classes/Regexp.html   (553 words)

  
 RegExp class for Flash
Flash / Regular expressions class for Flash 5 / Flash MX RegExp class for Flash 5 / Flash MX I have been doing a lot of programming with JavaScript and PHP, and using regular expressions extensively.
Anyway, the lack of RegExp support was reason why I decided to write a class to enable regular expressions in ActionScript.
To my surprise, the forerunner with publicising his code couple of days ahead was some guy Andy Black with his version of RegExp object.
www.jurjans.lv /flash/RegExp.html   (1719 words)

  
 Image::Grab - Perl extension for Grabbing images off the Internet.   (Site not responding. Last check: 2007-10-09)
If either regexp or index are used to specify the image, then search_url must be set to specify the page to be searched for the image.
If regexp and/or index methods are used to specify an image then the url in the search_url field will be used to find the image.
Used in conjunction with regexp, it specifies which image to grab that the regular expression matches.
mah.everybody.org /hacks/perl/Image-Grab   (1139 words)

  
 Regular expression - Wikipedia, the free encyclopedia
A regular expression (abbreviated as regexp, regex, or regxp, with plural forms regexps, regexes, or regexen) is a string that describes or matches a set of strings, according to certain syntax rules.
Perl has a richer but more predictable syntax than even the extended POSIX regexp.
Regexp Syntax Summary Reference table for UNIX grep, Emacs, Perl, Python and Tcl regular expressions.
en.wikipedia.org /wiki/Regexp   (2995 words)

  
 perlretut - Perl regular expressions tutorial
Regexp is a more natural abbreviation than regex, but is harder to pronounce.
Regexps with an independent subexpression are much like this, with a handoff of the string to the independent subexpression, and a handoff of the string back to the enclosing regexp.
This is not normally the case, as regexps are often used to extract the safe bits from a tainted variable.
www.cs.rit.edu /~afb/20013/plc/perl5/doc/perlretut.html   (11757 words)

  
 Regular Expressions in Haskell   (Site not responding. Last check: 2007-10-09)
The new GHC regexp library, provided here, is a regular expression package for the purely functional language Haskell.
Otherwise it would do C. The regexp library works with all current versions of GHC (the Glasgow haskell compiler).
The regexp library (including all documentation) is available in three versions.
www.dcs.gla.ac.uk /~meurig/regexp   (281 words)

  
 Regexp Syntax Summary
This table summarizes the meaning of various strings in different regexp syntaxes.
They serve two purposes; firstly they override the precedence rules of other operators, and secondly they "capture" part of the text matched by a regexp.
digit syntax (this is called a back-reference) or outside the regexp to extract the appropriate part of a string.
www.greenend.org.uk /rjk/2002/06/regexp.html   (767 words)

  
 GNU Emacs Manual: Regexp Search   (Site not responding. Last check: 2007-10-09)
A regular expression (regexp, for short) is a pattern that denotes a class of alternative strings to match, possibly infinitely many.
Each time you add text to the search string, you make the regexp longer, and the new regexp is searched for.
Note that adding characters to the regexp in an incremental regexp search can make the cursor move back and start again.
jamesthornton.com /emacs/node/emacs_96.html   (270 words)

  
 Regexp - An alternative Regular Expression Class   (Site not responding. Last check: 2007-10-09)
This match updates the state of this Regexp object so that the substrings of the match can be obtained.
The 0th substring is the substring of string that matched the whole regular expression.
The first (originally enough called Test1) is a C++ port of the original test program that came with the C code.
www.wyrdrune.com /Source/Regexp.html   (1621 words)

  
 OcamlNet Reference Manual : Netstring_str   (Site not responding. Last check: 2007-10-09)
Matches the string at the position with the regexp.
Searches a match of the string with the regexp, starting at the position and in forward direction.
Splits the string according to the regexp in substrings.
ocamlnet.sourceforge.net /manual/refman/Netstring_str.html   (423 words)

  
 Tcl Built-In Commands - regexp manual page   (Site not responding. Last check: 2007-10-09)
If the initial arguments to regexp start with - then they are treated as switches.
For each match iteration, the command will append the overall match data, plus one element for each subexpression in the regular expression.
regexp -inline -- {\w(\w)} " inlined " => {in n} regexp -all -inline -- {\w(\w)} " inlined " => {in n li i ne e}
www.tcl.tk /man/tcl8.3/TclCmd/regexp.htm   (697 words)

  
 Opera Browser Wiki :: Regular Expressions
RegExp, also known as regex or Regular Expressions, is a specialised string which can “match” text, and can also do a more advanced “search and replace” than normal string matching.
It can be more complicated and may also act as a “search and replace”.
Linux only -> You may also try the ^txt2regex$, which is a Regular Expression “wizard”, all written with bash2 builtins, that converts human sentences to RegExps.
nontroppo.org /wiki/RegExp   (233 words)

  
 Regexp
I would like to REGEXP in mysql to see if user enter any word matching keyword list by select
I would like to REGEXP in mysql to see if user enter any word matching keyword list
regexps (if i understood your question correctly and can make it up without the manual without errors) would be:
forums.devshed.com /t32319/s.html   (294 words)

  
 The GNU Awk User's Guide
Regexp: All about matching things using regular expressions.
Regexp Field Splitting: Using regexps as the field separator.
Regexp, introduces regular expressions in general, and in particular the flavors supported by POSIX
www.gnu.org /software/gawk/manual/gawk.html   (6703 words)

  
 RegExp ...   (Site not responding. Last check: 2007-10-09)
RegExp Studio - Visual designer and debugger for regular expressions
With help of RegExp Studio, You can easely jump to any r.e.
subexpression (in regexp source code as well as in current search results), check syntax errors, profile r.e.
regexpstudio.com   (330 words)

  
 JavaScript RegExp Object - Using Regular Expressions with Client Side Scripting
The second parameter is an normal string with the replacement text.
If the regexp contains capturing parentheses, you can use backreferences in the replacement text.
I recommend that you do not use the RegExp constructor with a literal string, because in literal strings, backslashes must be escaped.
www.regular-expressions.info /javascript.html   (830 words)

  
 [No title]
Thus with C, perl will first try to match the regexp with the C present; if that fails, perl will try to match the regexp without the C present.
Thus the integer regexp is /[+-]?\d+/; # matches integers A floating point number potentially has a sign, an integral part, a decimal point, a fractional part, and an exponent.
We can illustrate their behavior by first considering an ordinary regexp: $x = "ab"; $x =~ /a*ab/; # matches This obviously matches, but in the process of matching, the subexpression C first grabbed the C.
keck.ucsf.edu /~kvale/perlretut.pod   (11358 words)

  
 perlretut - Perl regular expressions tutorial
A note: to save time, 'regular expression' is often abbreviated as regexp or regex.
At a given character position, the first alternative that allows the regexp match to succeed will be the one that matches.
A conditional expression is a form of if-then-else statement that allows one to choose which patterns are to be matched, based on some condition.
theoryx5.uwinnipeg.ca /CPAN/perl/pod/perlretut.html   (12102 words)

  
 Visual REGEXP : a graphical explorer for your regexps
This software will let you design your regexps by letting you type the expression and visualize its effect on a sample of your choice.
This is due to a problem in Tcl (bug submitted to Scriptics).
The best tutorial on regexp in this article written by Jan Borsodi, author of the Regexplorer tool which does the same job as VisualREGEXP.
laurent.riesterer.free.fr /regexp   (513 words)

  
 VBScript Regular Expressions
Once the RegExp object’s properties have been set, it is time to test the Regular Expression.
The RegExp Execute method is a more sophisticated version of the Test method.
As well as seeing if the Regular Expression is found within a string, it will also return the number of matches made within that string, and at which position in the string the match(es) were made.
authors.aspalliance.com /brettb/VBScriptRegularExpressions.asp   (1641 words)

  
 regexp -- syntax of regular expression patterns
matches a string of one or more strings that would match regexp.
matches a string of zero or one occurrences of strings that would match regexp.
In this expression (and the ones to follow), char is a regular expression that stands for a single character (for example, a literal character or a period (
www.mkssoftware.com /docs/man5/regexp.5.asp   (1051 words)

  
 perl.com: Regexp Power
Everyone knows that Perl works particularly well as a text processing language, and that it has a great many tools to help the programmer slice and dice text files.
In this short series of two articles, we'll take a look through some of the less well-known or less understood parts of the regular expression language, and see how they can be used to solve problems with more power and less fuss.
If you're not too familiar with the basics of the regexp language, a good place to start is
www.perl.com /pub/a/2003/06/06/regexps.html   (1922 words)

  
 HelpSpy: Regexp::Ethiopic::Tigrigna Help
The Regexp::Ethiopic::Tigrigna package is NOT derived from the Regexp class and may not be instantiated into an object.
See the files in the doc/ and examples/ directories that are included with this package.
Information about the spider which is currently trawling the Internet looking for links to add to this directory can be found here.
helpspy.com /c.m/programming/lang/perl/cpan/c02/Regexp/Ethiopic/Tigrigna   (257 words)

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