R

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r" ‹"
re 2nd
re pragma
re-search-forward
reality check
recursive matching (see also dynamic regex)
        .NET
        Java
        PCRE
        PHP 2nd
red dragon
Reflection
reg_match
regex
        balancing needs
        cache 2nd 3rd 4th
        compile 2nd
        default
        delimiters
        engine analogy
        error checking
        frame of mind
        freeflowing design
        history
        library 2nd
        longest-leftmost match
                shortest-leftmost
        mechanics
        nomenclature
        operands
        overloading 2nd
                inhibiting
                problems
       subexpression
                defined
        subroutines
        vs. English
Regex (.NET)
        CompileToAssembly 2nd
       creating
                options
        Escape
        GetGroupNames
        GetGroupNumbers
        GroupNameFromNumber
        GroupNumberFromName
        IsMatch 2nd 3rd
        Match 2nd 3rd 4th 5th
        Matches 2nd
       object
                creating 2nd 3rd
                exceptions
                using 2nd
        Options
        Replace 2nd 3rd
        RightToLeft
        Split 2nd
        ToString
        Unescape
regex approach .NET
regex delimiters PHP 2nd
regex flavor
        .NET
        Java
regex literal 2nd
        inhibiting processing
        locking in
        parsing of
        processing
        regex objects
regex objects
        /g
        /o
        efficiency
        in regex literal
        match modes
        viewing
regex operators Perl
regex overloading
regex overloading example
regex-directed matching
        and backreferences
        and greediness
Regex.Escape
RegexCompilationInfo
RegexOptions
        Compiled 2nd 3rd 4th 5th 6th
        ECMAScript 2nd 3rd 4th 5th
        ExplicitCapture 2nd 3rd
        IgnoreCase 2nd 3rd 4th 5th
        IgnorePatternWhitespace 2nd 3rd 4th
        Multiline 2nd
        None 2nd
        RightToLeft 2nd 3rd 4th 5th
        Singleline 2nd 3rd
region
        additional example
        anchoring bounds
        hitEnd
        Java
        methods that reset
        requireEnd
        resetting
        setting one edge
        transparent bounds
region method
regionEnd method
regionStart method
regsub
regular expression origin of term
Regular Expression Search Algorithm
regular sets
Reinhold, Mark
removing whitespace
Replace (Regex object method)
replaceAll method
replaceFirst method
replacement argument
        array order 2nd
        Java
        PHP
reproductive organs
required character pre-check 2nd 3rd 4th 5th
requireEnd method
reset method 2nd
Result (Match object method)
RightToLeft (.NET) 2nd 3rd 4th 5th
RightToLeft (Regex property)
Ruby
        $ and ^
        after-match data
        benchmarking
        line anchors
        mode modifiers
        version covered
        word boundaries
rule
        earliest match wins
        standard quantifiers are greedy
rx