library: libCore
#include "TRegexp.h"


class description - header file - source file
viewCVS header - viewCVS source

class TRegexp

Inheritance Inherited Members Includes Libraries
Class Charts

Function Members (Methods)

Display options:
Show inherited
Show non-public
TRegexp(const TString& re)
TRegexp(const TRegexp& re)
TRegexp(const char* re, Bool_t wildcard = kFALSE)
static TClass*Class()
Ssiz_tIndex(const TString& str, Ssiz_t* len, Ssiz_t start = 0) const
virtual TClass*IsA() const
TRegexp&operator=(const TRegexp& re)
TRegexp&operator=(const TString& re)
TRegexp&operator=(const char* re)
virtual voidShowMembers(TMemberInspector& insp, char* parent)
virtual voidStreamer(TBuffer& b)
voidStreamerNVirtual(TBuffer& b)
voidCopyPattern(const TRegexp& re)
voidGenPattern(const char* re)
const char*MakeWildcard(const char* re)

Data Members

enum EStatVal { kOK
unsigned short*fPatternCompiled pattern
static const unsigned intfgMaxpatMax length of compiled pattern

Class Description

 Regular expression class.                                            
   '^'             // start-of-line anchor                            
   '$'             // end-of-line anchor                              
   '.'             // matches any character                           
   '['             // start a character class                         
   ']'             // end a character class                           
   '^'             // negates character class if 1st character        
   '*'             // Kleene closure (matches 0 or more)              
   '+'             // Positive closure (1 or more)                    
   '?'             // Optional closure (0 or 1)                       
   Standard classes like [:alnum:], [:alpha:], etc. are not supported,
   only [a-zA-Z], [^ntf] and so on.                                   

TRegexp(const char *re, Bool_t wildcard)
 Create a regular expression from the input string. If wildcard is true
 then the input string contains a wildcard expression (see MakeWildcard()).
TRegexp(const TString& re)
 Create a regular expression from a TString.
TRegexp(const TRegexp& r)
 Copy ctor.
TRegexp& operator=(const TRegexp& r)
 Assignment operator.
TRegexp& operator=(const char *str)
 Assignment operator taking a char* and assigning it to a regexp.
TRegexp& operator=(const TString &str)
 Assignment operator taking a TString.
void GenPattern(const char *str)
 Generate the regular expression pattern.
void CopyPattern(const TRegexp& r)
 Copy the regular expression pattern.
const char * MakeWildcard(const char *re)
 This routine transforms a wildcarding regular expression into
 a general regular expression used for pattern matching.
 When using wildcards the regular expression is assumed to be
 preceded by a "^" (BOL) and terminated by a "$" (EOL). Also, all
 "*"'s (closures) are assumed to be preceded by a "." (i.e. any character,
 except "/"'s) and all .'s are escaped (so *.ps is different from *.eps).
 The special treatment of "/" allows the easy matching of pathnames, e.g.
 "*.root" will match "aap.root", but not "pipo/aap.root".
Ssiz_t Index(const TString& string, Ssiz_t* len, Ssiz_t i)
 Find the first occurance of the regexp in string and return the position.
 Len is length of the matched string and i is the offset at which the
 matching should start.
EStatVal Status()

Author: Fons Rademakers 04/08/95
Last update: root/base:$Name: $:$Id: TRegexp.cxx,v 1.14 2006/10/07 18:01:59 rdm Exp $
Copyright (C) 1995-2000, Rene Brun and Fons Rademakers. *

ROOT page - Class index - Class Hierarchy - Top of the page

This page has been automatically generated. If you have any comments or suggestions about the page layout send a mail to ROOT support, or contact the developers with any questions or problems regarding ROOT.