Regular Expressions Cookbook, 2nd Edition

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m// operator, Languages Covered in This Chapter, Perl, Perl, Perl, Perl, Perl

“magical” dates, Problem, Problem

Marcuse, Andrew, RegexPlanet

Mark category, See Also

HTML tags, Quick and dirty–Quick and dirty, Allow > in attribute values–Allow > in attribute values, (X)HTML tags (loose)–(X)HTML tags (loose), (X)HTML tags (strict)–(X)HTML tags (strict), A few words of caution–A few words of caution, Quick and dirty–Quick and dirty, Allow > in attribute values–Allow > in attribute values, (X)HTML tags (loose)–(X)HTML tags (loose), (X)HTML tags (strict)–(X)HTML tags (strict), Outer regex for (X)HTML–Outer regex for (X)HTML, Problem–See Also, Problem–See Also, Problem–See Also, Tags that contain an id attribute (quick and dirty)–Tags that contain an id attribute (quick and dirty), Tags that contain “my-class” within their class attribute value–Tags that contain “my-class” within their class attribute value, Problem–See Also, Problem–See Also, Find valid HTML comments–Find valid HTML comments, Problem–See Also

adding attribute to, Problem–See Also
allowing > in attribute values, Allow > in attribute values–Allow > in attribute values, Allow > in attribute values–Allow > in attribute values
caution with, A few words of caution–A few words of caution
converting plain text to, Problem–See Also
finding class attribute, Tags that contain “my-class” within their class attribute value–Tags that contain “my-class” within their class attribute value
finding comments with words, Problem–See Also
finding id attribute, Tags that contain an id attribute (quick and dirty)–Tags that contain an id attribute (quick and dirty)
loose, (X)HTML tags (loose)–(X)HTML tags (loose), (X)HTML tags (loose)–(X)HTML tags (loose)
removing all except and , Problem–See Also
removing comments from, Problem–See Also
replacing with , Problem–See Also
simple regex for, Quick and dirty–Quick and dirty, Quick and dirty–Quick and dirty
skipping certain sections of, Outer regex for (X)HTML–Outer regex for (X)HTML
strict, (X)HTML tags (strict)–(X)HTML tags (strict), (X)HTML tags (strict)–(X)HTML tags (strict)
validating comments in, Find valid HTML comments–Find valid HTML comments

overview, Basic Rules for Formats Covered in This Chapter–Basic Rules for Formats Covered in This Chapter

XHTML tags, Quick and dirty–Quick and dirty, Allow > in attribute values–Allow > in attribute values, (X)HTML tags (loose)–(X)HTML tags (loose), (X)HTML tags (strict)–(X)HTML tags (strict), A few words of caution–A few words of caution, Quick and dirty–Quick and dirty, Allow > in attribute values–Allow > in attribute values, (X)HTML tags (loose)–(X)HTML tags (loose), (X)HTML tags (strict)–(X)HTML tags (strict), Outer regex for (X)HTML–Outer regex for (X)HTML, Problem–See Also, Problem–See Also, Tags that contain an id attribute (quick and dirty)–Tags that contain an id attribute (quick and dirty), Tags that contain “my-class” within their class attribute value–Tags that contain “my-class” within their class attribute value, Problem–See Also, Problem–See Also, Problem–See Also

adding attribute to, Problem–See Also
allowing > in attribute values, Allow > in attribute values–Allow > in attribute values, Allow > in attribute values–Allow > in attribute values
caution with, A few words of caution–A few words of caution
finding class attribute, Tags that contain “my-class” within their class attribute value–Tags that contain “my-class” within their class attribute value
finding comments with words, Problem–See Also
finding id attribute, Tags that contain an id attribute (quick and dirty)–Tags that contain an id attribute (quick and dirty)
loose, (X)HTML tags (loose)–(X)HTML tags (loose), (X)HTML tags (loose)–(X)HTML tags (loose)
removing all except and , Problem–See Also
removing comments from, Problem–See Also
replacing with , Problem–See Also
simple regex for, Quick and dirty–Quick and dirty, Quick and dirty–Quick and dirty
skipping certain sections of, Outer regex for (X)HTML–Outer regex for (X)HTML
strict, (X)HTML tags (strict)–(X)HTML tags (strict), (X)HTML tags (strict)–(X)HTML tags (strict)

XML tags, Quick and dirty–Quick and dirty, Allow > in attribute values–Allow > in attribute values, XML tags (strict)–XML tags (strict), A few words of caution–A few words of caution, Quick and dirty–Quick and dirty, Allow > in attribute values–Allow > in attribute values, XML tags (strict)–XML tags (strict), Outer regex for XML–Outer regex for XML, Problem–See Also, XML 1.0 names (approximate)–XML 1.0 names, XML 1.1 names (exact)–XML 1.1 names (exact), XML 1.1 names–XML 1.1 names, Problem–See Also, Tags that contain an id attribute (quick and dirty)–Tags that contain an id attribute (quick and dirty), Tags that contain “my-class” within their class attribute value–Tags that contain “my-class” within their class attribute value, Problem–See Also, Problem–See Also, Find valid XML comments–Find valid XML comments, Problem–See Also

adding attribute to, Problem–See Also
allowing > in attribute values, Allow > in attribute values–Allow > in attribute values, Allow > in attribute values–Allow > in attribute values
caution with, A few words of caution–A few words of caution
decoding, Problem–See Also
finding class attribute, Tags that contain “my-class” within their class attribute value–Tags that contain “my-class” within their class attribute value
finding comments with words, Problem–See Also
finding id attribute, Tags that contain an id attribute (quick and dirty)–Tags that contain an id attribute (quick and dirty)
removing all except and , Problem–See Also
removing comments from, Problem–See Also
simple regex for, Quick and dirty–Quick and dirty, Quick and dirty–Quick and dirty
skipping certain sections of, Outer regex for XML–Outer regex for XML
strict, XML tags (strict)–XML tags (strict), XML tags (strict)–XML tags (strict)
validating comments in, Find valid XML comments–Find valid XML comments
XML 1.0 names, XML 1.0 names (approximate)–XML 1.0 names
XML 1.1 names, XML 1.1 names (exact)–XML 1.1 names (exact), XML 1.1 names–XML 1.1 names

Match class (.NET), .NET, .NET, .NET, .NET, .NET, .NET, .NET, .NET, .NET, .NET, .NET, .NET

-match operator, More Programming Languages

Match() method (.NET), .NET, .NET, .NET, .NET, .NET, .NET, .NET, .NET, .NET, .NET, .NET, .NET, .NET, .NET, .NET, .NET, .NET, .NET, .NET, C# and VB.NET

match() method (JavaScript), JavaScript, JavaScript, JavaScript, JavaScript, JavaScript, JavaScript, JavaScript, JavaScript, JavaScript, JavaScript

match() method (Python), Python, Python, Python, Python

match() method (Ruby), Ruby

MatchAgain() method (.NET), .NET

matchChain() method (XRegExp), XRegExp, Discussion

MatchData class (Ruby), Ruby, Ruby, Ruby, Ruby, Ruby, Ruby

Matcher class (Java), Java, Java, Java, Java, Java, Java, Java, Java, Java, Java, Java, Java, Java, Java, Java, Java 7, Java, Java, Java

Matches() method (.NET), .NET, .NET, .NET, .NET, .NET

matches() method (Java), myregexp.com, myregexp.com, Java, Java, Java, Java, Java, Java, Java, Java, Java, Java

matching, Problem–See Also, Block escape–Block escape, Case-insensitive matching–Case-insensitive matching, Problem–See Also, The 26 control characters–The 26 control characters, The 7-bit character set–The 7-bit character set, Problem–See Also, Problem–Discussion, Problem–Discussion, Problem–Discussion, Shorthands–Shorthands, Case insensitivity–Case insensitivity, .NET character class subtraction–.NET character class subtraction, Java character class union, intersection, and subtraction–Java character class union, intersection, and subtraction, Java character class union, intersection, and subtraction–Java character class union, intersection, and subtraction, Java character class union, intersection, and subtraction–Java character class union, intersection, and subtraction, Match Any Character–See Also, Problem–Any character except line breaks, Problem–Any character including line breaks, Dot abuse–Dot abuse, Problem–Anchors and lines, Problem–End of a line, Problem–End of the subject, Problem–Start of a line, Problem–Start of the subject, Zero-length matches–Zero-length matches, Problem–See Also, Word boundaries–Word boundaries, Nonboundaries–Nonboundaries, Word Characters–Word Characters, Problem–See Also, Unicode code point–Unicode code point, Unicode category–Unicode category, Unicode block–Unicode block, Unicode script–Unicode script, Unicode grapheme–Unicode grapheme, Unicode category–Unicode category, Unicode block–Unicode block, Unicode script–Unicode script, Unicode grapheme–Unicode grapheme, Negated variant–Negated variant, Character classes–Character classes, Listing all characters–Listing all characters, Problem–See Also, Problem–See Also, Noncapturing groups–Noncapturing groups, Group with mode modifiers–Group with mode modifiers, Problem–See Also, Named capture–Groups with the same name, Named backreferences–Named backreferences, Problem–See Also, Fixed repetition–Fixed repetition, Variable repetition–Variable repetition, Infinite repetition–Infinite repetition, Making something optional–Making something optional, Repeating groups–Repeating groups, Problem–See Also, Problem–See Also, Problem–See Also, Problem–See Also, Problem–See Also, Problem–See Also, Lookaround–Lookaround, Negative lookaround–Negative lookaround, Different levels of lookbehind–Different levels of lookbehind, Matching the same text twice–Matching the same text twice, Lookaround is atomic–Lookaround is atomic, Alternative to Lookbehind–Alternative to Lookbehind, Solution Without Lookbehind–Solution Without Lookbehind, Problem–See Also, C# and VB.NET–Ruby, C# and VB.NET–Ruby, .NET–Ruby, .NET–Ruby, .NET–Ruby, .NET–Ruby, .NET–Ruby, .NET–Ruby, C#–Discussion, Problem–Discussion, .NET–Ruby, .NET–Python, C#–Ruby, Problem–Discussion, Problem–Python, (X)HTML tags (loose), (X)HTML tags (loose), (X)HTML tags (loose)

alternatives, Problem–See Also

anchors for, Problem–Anchors and lines

any character, Match Any Character–See Also, Problem–Any character except line breaks, Problem–Any character including line breaks, Dot abuse–Dot abuse

abuse of, Dot abuse–Dot abuse
except line breaks, Problem–Any character except line breaks
including line breaks, Problem–Any character including line breaks

backreferences in, Problem–See Also, Named backreferences–Named backreferences

named backreferences, Named backreferences–Named backreferences
overview, Problem–See Also

backtracking in, avoiding needless, Problem–See Also

catastrophic backtracking, Problem–See Also

character classes, Problem–See Also, Problem–Discussion, Problem–Discussion, Problem–Discussion, Shorthands–Shorthands, Case insensitivity–Case insensitivity, .NET character class subtraction–.NET character class subtraction, Java character class union, intersection, and subtraction–Java character class union, intersection, and subtraction, Java character class union, intersection, and subtraction–Java character class union, intersection, and subtraction, Java character class union, intersection, and subtraction–Java character class union, intersection, and subtraction

case-insensitivity in, Case insensitivity–Case insensitivity
for hexadecimal character, Problem–Discussion
for nonhexadecimal character, Problem–Discussion
handling misspellings with, Problem–Discussion
intersection of, Java character class union, intersection, and subtraction–Java character class union, intersection, and subtraction
shorthand character classes, Shorthands–Shorthands
subtraction of, .NET character class subtraction–.NET character class subtraction, Java character class union, intersection, and subtraction–Java character class union, intersection, and subtraction
union of, Java character class union, intersection, and subtraction–Java character class union, intersection, and subtraction

closing tags, (X)HTML tags (loose)

conditionals for, Problem–See Also

end of line, Problem–End of a line

end of subject, Problem–End of the subject

finding within another match, Problem–Discussion

greedy, Problem–See Also

grouping in, Problem–See Also, Noncapturing groups–Noncapturing groups, Group with mode modifiers–Group with mode modifiers, Named capture–Groups with the same name

mode modifiers for, Group with mode modifiers–Group with mode modifiers
named capture, Named capture–Groups with the same name
noncapturing groups, Noncapturing groups–Noncapturing groups

iterating through, .NET–Ruby

lazy, Problem–See Also

length of, .NET–Ruby

literal text, Problem–See Also, Block escape–Block escape, Case-insensitive matching–Case-insensitive matching

block escape in, Block escape–Block escape
case-insensitive matching, Case-insensitive matching–Case-insensitive matching

nonprintable characters, Problem–See Also, The 26 control characters–The 26 control characters, The 7-bit character set–The 7-bit character set

using 7-bit character set, The 7-bit character set–The 7-bit character set
using control characters, The 26 control characters–The 26 control characters

opening tags, (X)HTML tags (loose)

position of, .NET–Ruby

preventing runaway repetition, Problem–See Also

quantifiers, Problem–See Also, Fixed repetition–Fixed repetition, Variable repetition–Variable repetition, Infinite repetition–Infinite repetition, Making something optional–Making something optional, Repeating groups–Repeating groups

fixed repetition, Fixed repetition–Fixed repetition
for groups, Repeating groups–Repeating groups
infinite repetition, Infinite repetition–Infinite repetition
optional matches with, Making something optional–Making something optional
variable repetition, Variable repetition–Variable repetition

replacing all, .NET–Ruby

replacing all between matches of another regex, Problem–Python

replacing all using parts of match text, .NET–Python

replacing all with replacements generated in code, C#–Ruby

replacing all within matches of another regex, Problem–Discussion

retrieving entire string, .NET–Ruby

retrieving list of, .NET–Ruby

retrieving part of string, .NET–Ruby

singleton tags, (X)HTML tags (loose)

start of line, Problem–Start of a line

start of subject, Problem–Start of the subject

testing entire string, C# and VB.NET–Ruby

testing in string, C# and VB.NET–Ruby

Unicode, Problem–See Also, Unicode code point–Unicode code point, Unicode category–Unicode category, Unicode block–Unicode block, Unicode script–Unicode script, Unicode grapheme–Unicode grapheme, Unicode category–Unicode category, Unicode block–Unicode block, Unicode script–Unicode script, Unicode grapheme–Unicode grapheme, Negated variant–Negated variant, Character classes–Character classes, Listing all characters–Listing all characters

block, Unicode block–Unicode block, Unicode block–Unicode block
by listing all characters, Listing all characters–Listing all characters
category, Unicode category–Unicode category, Unicode category–Unicode category
code point, Unicode code point–Unicode code point
grapheme, Unicode grapheme–Unicode grapheme, Unicode grapheme–Unicode grapheme
in character classes, Character classes–Character classes
negated variant for, Negated variant–Negated variant
script, Unicode script–Unicode script, Unicode script–Unicode script

using lookaround groups, Problem–See Also, Lookaround–Lookaround, Negative lookaround–Negative lookaround, Different levels of lookbehind–Different levels of lookbehind, Matching the same text twice–Matching the same text twice, Lookaround is atomic–Lookaround is atomic, Alternative to Lookbehind–Alternative to Lookbehind, Solution Without Lookbehind–Solution Without Lookbehind

alternative to lookbehind, Alternative to Lookbehind–Alternative to Lookbehind
is atomic, Lookaround is atomic–Lookaround is atomic
levels of lookbehind, Different levels of lookbehind–Different levels of lookbehind
matching same text twice, Matching the same text twice–Matching the same text twice
negative lookaround, Negative lookaround–Negative lookaround
overview, Lookaround–Lookaround
solution without, Solution Without Lookbehind–Solution Without Lookbehind

validating in procedural code, C#–Discussion

whole words, Problem–See Also, Word boundaries–Word boundaries, Nonboundaries–Nonboundaries, Word Characters–Word Characters

nonboundaries, Nonboundaries–Nonboundaries
word boundaries, Word boundaries–Word boundaries
word characters, Word Characters–Word Characters

zero-length matches, Zero-length matches–Zero-length matches

MatchObject class (Ruby), Ruby, Ruby

math, Compressed notation

mb_ereg functions, Languages Covered in This Chapter, Languages Covered in This Chapter, Languages Covered in This Chapter, PHP

metacharacters, Discussion, Discussion, Discussion, Problem–See Also, Built-in solutions–Built-in solutions, Regular expression–Replacement, Example JavaScript function–Example JavaScript function

defined, Discussion

escaping, Discussion, Problem–See Also, Built-in solutions–Built-in solutions, Regular expression–Replacement, Example JavaScript function–Example JavaScript function

built-in solutions, Built-in solutions–Built-in solutions
in JavaScript, Example JavaScript function–Example JavaScript function
using regular expression, Regular expression–Replacement

Microsoft .NET Framework, Introduction to Regular Expressions (see .NET Framework)

Microsoft VBScript, Regex Flavors Covered by This Book

misspellings, Problem, Problem–Discussion

matching, Problem
with character classes, Problem–Discussion

mixed notation for IPv6 addresses, Mixed notation–Mixed notation, Standard or mixed notation–Standard or mixed notation, Standard, mixed, or compressed notation–Standard, mixed, or compressed notation, Mixed notation–Mixed notation, Standard or mixed notation–Standard or mixed notation, Standard, mixed, or compressed notation–Standard, mixed, or compressed notation

mode modifiers for grouping, Group with mode modifiers–Group with mode modifiers

MSIL, Introduction to Regular Expressions (see CIL (Common Intermediate Language))

multiline comments, source code extraction of, Problem–See Also

multiline mode, Start of a line–End of a line

multiple lines, $ token for, End of a line, Discussion

multiple words, Problem–See Also, Using alternation–Using alternation, Using alternation–Example JavaScript solution, Using alternation–Using alternation

finding, Problem–See Also, Using alternation–Using alternation, Using alternation–Example JavaScript solution, Using alternation–Using alternation

in JavaScript, Using alternation–Example JavaScript solution
using alternation, Using alternation–Using alternation, Using alternation–Using alternation

myregexp.com, myregexp.com–myregexp.com

Table of Contents for Regular Expressions Cookbook, 2nd Edition

M

Table of Contents for
Regular Expressions Cookbook, 2nd Edition