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// Copyright (c) 2005, Google Inc.
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
// Author: Sanjay Ghemawat
// Support for PCRE_XXX modifiers added by Giuseppe Maxia, July 2005
#ifndef _PCRECPP_H
#define _PCRECPP_H
// C++ interface to the pcre regular-expression library. RE supports
// Perl-style regular expressions (with extensions like \d, \w, \s,
// ...).
//
// -----------------------------------------------------------------------
// REGEXP SYNTAX:
//
// This module is part of the pcre library and hence supports its syntax
// for regular expressions.
//
// The syntax is pretty similar to Perl's. For those not familiar
// with Perl's regular expressions, here are some examples of the most
// commonly used extensions:
//
// "hello (\\w+) world" -- \w matches a "word" character
// "version (\\d+)" -- \d matches a digit
// "hello\\s+world" -- \s matches any whitespace character
// "\\b(\\w+)\\b" -- \b matches empty string at a word boundary
// "(?i)hello" -- (?i) turns on case-insensitive matching
// "/\\*(.*?)\\*/" -- .*? matches . minimum no. of times possible
//
// -----------------------------------------------------------------------
// MATCHING INTERFACE:
//
// The "FullMatch" operation checks that supplied text matches a
// supplied pattern exactly.
//
// Example: successful match
// pcrecpp::RE re("h.*o");
// re.FullMatch("hello");
//
// Example: unsuccessful match (requires full match):
// pcrecpp::RE re("e");
// !re.FullMatch("hello");
//
// Example: creating a temporary RE object:
// pcrecpp::RE("h.*o").FullMatch("hello");
//
// You can pass in a "const char*" or a "string" for "text". The
// examples below tend to use a const char*.
//
// You can, as in the different examples above, store the RE object
// explicitly in a variable or use a temporary RE object. The
// examples below use one mode or the other arbitrarily. Either
// could correctly be used for any of these examples.
//
// -----------------------------------------------------------------------
// MATCHING WITH SUB-STRING EXTRACTION:
//
// You can supply extra pointer arguments to extract matched subpieces.
//
// Example: extracts "ruby" into "s" and 1234 into "i"
// int i;
// string s;
// pcrecpp::RE re("(\\w+):(\\d+)");
// re.FullMatch("ruby:1234", &s, &i);
//
// Example: does not try to extract any extra sub-patterns
// re.FullMatch("ruby:1234", &s);
//
// Example: does not try to extract into NULL
// re.FullMatch("ruby:1234", NULL, &i);
//
// Example: integer overflow causes failure
// !re.FullMatch("ruby:1234567891234", NULL, &i);
//
// Example: fails because there aren't enough sub-patterns:
// !pcrecpp::RE("\\w+:\\d+").FullMatch("ruby:1234", &s);
//
// Example: fails because string cannot be stored in integer
// !pcrecpp::RE("(.*)").FullMatch("ruby", &i);
//
// The provided pointer arguments can be pointers to any scalar numeric
// type, or one of
// string (matched piece is copied to string)
// StringPiece (StringPiece is mutated to point to matched piece)
// T (where "bool T::ParseFrom(const char*, int)" exists)
// NULL (the corresponding matched sub-pattern is not copied)
//
// CAVEAT: An optional sub-pattern that does not exist in the matched
// string is assigned the empty string. Therefore, the following will
// return false (because the empty string is not a valid number):
// int number;
// pcrecpp::RE::FullMatch("abc", "[a-z]+(\\d+)?", &number);
//
// -----------------------------------------------------------------------
// DO_MATCH
//
// The matching interface supports at most 16 arguments per call.
// If you need more, consider using the more general interface
// pcrecpp::RE::DoMatch(). See pcrecpp.h for the signature for DoMatch.
//
// -----------------------------------------------------------------------
// PARTIAL MATCHES
//
// You can use the "PartialMatch" operation when you want the pattern
// to match any substring of the text.
//
// Example: simple search for a string:
// pcrecpp::RE("ell").PartialMatch("hello");
//
// Example: find first number in a string:
// int number;
// pcrecpp::RE re("(\\d+)");
// re.PartialMatch("x*100 + 20", &number);
// assert(number == 100);
//
// -----------------------------------------------------------------------
// UTF-8 AND THE MATCHING INTERFACE:
//
// By default, pattern and text are plain text, one byte per character.
// The UTF8 flag, passed to the constructor, causes both pattern
// and string to be treated as UTF-8 text, still a byte stream but
// potentially multiple bytes per character. In practice, the text
// is likelier to be UTF-8 than the pattern, but the match returned
// may depend on the UTF8 flag, so always use it when matching
// UTF8 text. E.g., "." will match one byte normally but with UTF8
// set may match up to three bytes of a multi-byte character.
//
// Example:
// pcrecpp::RE_Options options;
// options.set_utf8();
// pcrecpp::RE re(utf8_pattern, options);
// re.FullMatch(utf8_string);
//
// Example: using the convenience function UTF8():
// pcrecpp::RE re(utf8_pattern, pcrecpp::UTF8());
// re.FullMatch(utf8_string);
//
// NOTE: The UTF8 option is ignored if pcre was not configured with the
// --enable-utf8 flag.
//
// -----------------------------------------------------------------------
// PASSING MODIFIERS TO THE REGULAR EXPRESSION ENGINE
//
// PCRE defines some modifiers to change the behavior of the regular
// expression engine.
// The C++ wrapper defines an auxiliary class, RE_Options, as a vehicle
// to pass such modifiers to a RE class.
//
// Currently, the following modifiers are supported
//
// modifier description Perl corresponding
//
// PCRE_CASELESS case insensitive match /i
// PCRE_MULTILINE multiple lines match /m
// PCRE_DOTALL dot matches newlines /s
// PCRE_DOLLAR_ENDONLY $ matches only at end N/A
// PCRE_EXTRA strict escape parsing N/A
// PCRE_EXTENDED ignore whitespaces /x
// PCRE_UTF8 handles UTF8 chars built-in
// PCRE_UNGREEDY reverses * and *? N/A
// PCRE_NO_AUTO_CAPTURE disables matching parens N/A (*)
//
// (For a full account on how each modifier works, please check the
// PCRE API reference manual).
//
// (*) Both Perl and PCRE allow non matching parentheses by means of the
// "?:" modifier within the pattern itself. e.g. (?:ab|cd) does not
// capture, while (ab|cd) does.
//
// For each modifier, there are two member functions whose name is made
// out of the modifier in lowercase, without the "PCRE_" prefix. For
// instance, PCRE_CASELESS is handled by
// bool caseless(),
// which returns true if the modifier is set, and
// RE_Options & set_caseless(bool),
// which sets or unsets the modifier.
//
// Moreover, PCRE_EXTRA_MATCH_LIMIT can be accessed through the
// set_match_limit() and match_limit() member functions.
// Setting match_limit to a non-zero value will limit the executation of
// pcre to keep it from doing bad things like blowing the stack or taking
// an eternity to return a result. A value of 5000 is good enough to stop
// stack blowup in a 2MB thread stack. Setting match_limit to zero will
// disable match limiting. Alternately, you can set match_limit_recursion()
// which uses PCRE_EXTRA_MATCH_LIMIT_RECURSION to limit how much pcre
// recurses. match_limit() caps the number of matches pcre does;
// match_limit_recrusion() caps the depth of recursion.
//
// Normally, to pass one or more modifiers to a RE class, you declare
// a RE_Options object, set the appropriate options, and pass this
// object to a RE constructor. Example:
//
// RE_options opt;
// opt.set_caseless(true);
//
// if (RE("HELLO", opt).PartialMatch("hello world")) ...
//
// RE_options has two constructors. The default constructor takes no
// arguments and creates a set of flags that are off by default.
//
// The optional parameter 'option_flags' is to facilitate transfer
// of legacy code from C programs. This lets you do
// RE(pattern, RE_Options(PCRE_CASELESS|PCRE_MULTILINE)).PartialMatch(str);
//
// But new code is better off doing
// RE(pattern,
// RE_Options().set_caseless(true).set_multiline(true)).PartialMatch(str);
// (See below)
//
// If you are going to pass one of the most used modifiers, there are some
// convenience functions that return a RE_Options class with the
// appropriate modifier already set:
// CASELESS(), UTF8(), MULTILINE(), DOTALL(), EXTENDED()
//
// If you need to set several options at once, and you don't want to go
// through the pains of declaring a RE_Options object and setting several
// options, there is a parallel method that give you such ability on the
// fly. You can concatenate several set_xxxxx member functions, since each
// of them returns a reference to its class object. e.g.: to pass
// PCRE_CASELESS, PCRE_EXTENDED, and PCRE_MULTILINE to a RE with one
// statement, you may write
//
// RE(" ^ xyz \\s+ .* blah$", RE_Options()
// .set_caseless(true)
// .set_extended(true)
// .set_multiline(true)).PartialMatch(sometext);
//
// -----------------------------------------------------------------------
// SCANNING TEXT INCREMENTALLY
//
// The "Consume" operation may be useful if you want to repeatedly
// match regular expressions at the front of a string and skip over
// them as they match. This requires use of the "StringPiece" type,
// which represents a sub-range of a real string. Like RE, StringPiece
// is defined in the pcrecpp namespace.
//
// Example: read lines of the form "var = value" from a string.
// string contents = ...; // Fill string somehow
// pcrecpp::StringPiece input(contents); // Wrap in a StringPiece
//
// string var;
// int value;
// pcrecpp::RE re("(\\w+) = (\\d+)\n");
// while (re.Consume(&input, &var, &value)) {
// ...;
// }
//
// Each successful call to "Consume" will set "var/value", and also
// advance "input" so it points past the matched text.
//
// The "FindAndConsume" operation is similar to "Consume" but does not
// anchor your match at the beginning of the string. For example, you
// could extract all words from a string by repeatedly calling
// pcrecpp::RE("(\\w+)").FindAndConsume(&input, &word)
//
// -----------------------------------------------------------------------
// PARSING HEX/OCTAL/C-RADIX NUMBERS
//
// By default, if you pass a pointer to a numeric value, the
// corresponding text is interpreted as a base-10 number. You can
// instead wrap the pointer with a call to one of the operators Hex(),
// Octal(), or CRadix() to interpret the text in another base. The
// CRadix operator interprets C-style "0" (base-8) and "0x" (base-16)
// prefixes, but defaults to base-10.
//
// Example:
// int a, b, c, d;
// pcrecpp::RE re("(.*) (.*) (.*) (.*)");
// re.FullMatch("100 40 0100 0x40",
// pcrecpp::Octal(&a), pcrecpp::Hex(&b),
// pcrecpp::CRadix(&c), pcrecpp::CRadix(&d));
// will leave 64 in a, b, c, and d.
//
// -----------------------------------------------------------------------
// REPLACING PARTS OF STRINGS
//
// You can replace the first match of "pattern" in "str" with
// "rewrite". Within "rewrite", backslash-escaped digits (\1 to \9)
// can be used to insert text matching corresponding parenthesized
// group from the pattern. \0 in "rewrite" refers to the entire
// matching text. E.g.,
//
// string s = "yabba dabba doo";
// pcrecpp::RE("b+").Replace("d", &s);
//
// will leave "s" containing "yada dabba doo". The result is true if
// the pattern matches and a replacement occurs, or false otherwise.
//
// GlobalReplace() is like Replace(), except that it replaces all
// occurrences of the pattern in the string with the rewrite.
// Replacements are not subject to re-matching. E.g.,
//
// string s = "yabba dabba doo";
// pcrecpp::RE("b+").GlobalReplace("d", &s);
//
// will leave "s" containing "yada dada doo". It returns the number
// of replacements made.
//
// Extract() is like Replace(), except that if the pattern matches,
// "rewrite" is copied into "out" (an additional argument) with
// substitutions. The non-matching portions of "text" are ignored.
// Returns true iff a match occurred and the extraction happened
// successfully. If no match occurs, the string is left unaffected.
#include <string>
#include <pcre.h>
#include <pcrecpparg.h> // defines the Arg class
// This isn't technically needed here, but we include it
// anyway so folks who include pcrecpp.h don't have to.
#include <pcre_stringpiece.h>
namespace pcrecpp {
#define PCRE_SET_OR_CLEAR(b, o) \
if (b) all_options_ |= (o); else all_options_ &= ~(o); \
return *this
#define PCRE_IS_SET(o) \
(all_options_ & o) == o
/***** Compiling regular expressions: the RE class *****/
// RE_Options allow you to set options to be passed along to pcre,
// along with other options we put on top of pcre.
// Only 9 modifiers, plus match_limit and match_limit_recursion,
// are supported now.
class PCRECPP_EXP_DEFN RE_Options {
public:
// constructor
RE_Options() : match_limit_(0), match_limit_recursion_(0), all_options_(0) {}
// alternative constructor.
// To facilitate transfer of legacy code from C programs
//
// This lets you do
// RE(pattern, RE_Options(PCRE_CASELESS|PCRE_MULTILINE)).PartialMatch(str);
// But new code is better off doing
// RE(pattern,
// RE_Options().set_caseless(true).set_multiline(true)).PartialMatch(str);
RE_Options(int option_flags) : match_limit_(0), match_limit_recursion_(0),
all_options_(option_flags) {}
// we're fine with the default destructor, copy constructor, etc.
// accessors and mutators
int match_limit() const { return match_limit_; };
RE_Options &set_match_limit(int limit) {
match_limit_ = limit;
return *this;
}
int match_limit_recursion() const { return match_limit_recursion_; };
RE_Options &set_match_limit_recursion(int limit) {
match_limit_recursion_ = limit;
return *this;
}
bool caseless() const {
return PCRE_IS_SET(PCRE_CASELESS);
}
RE_Options &set_caseless(bool x) {
PCRE_SET_OR_CLEAR(x, PCRE_CASELESS);
}
bool multiline() const {
return PCRE_IS_SET(PCRE_MULTILINE);
}
RE_Options &set_multiline(bool x) {
PCRE_SET_OR_CLEAR(x, PCRE_MULTILINE);
}
bool dotall() const {
return PCRE_IS_SET(PCRE_DOTALL);
}
RE_Options &set_dotall(bool x) {
PCRE_SET_OR_CLEAR(x, PCRE_DOTALL);
}
bool extended() const {
return PCRE_IS_SET(PCRE_EXTENDED);
}
RE_Options &set_extended(bool x) {
PCRE_SET_OR_CLEAR(x, PCRE_EXTENDED);
}
bool dollar_endonly() const {
return PCRE_IS_SET(PCRE_DOLLAR_ENDONLY);
}
RE_Options &set_dollar_endonly(bool x) {
PCRE_SET_OR_CLEAR(x, PCRE_DOLLAR_ENDONLY);
}
bool extra() const {
return PCRE_IS_SET(PCRE_EXTRA);
}
RE_Options &set_extra(bool x) {
PCRE_SET_OR_CLEAR(x, PCRE_EXTRA);
}
bool ungreedy() const {
return PCRE_IS_SET(PCRE_UNGREEDY);
}
RE_Options &set_ungreedy(bool x) {
PCRE_SET_OR_CLEAR(x, PCRE_UNGREEDY);
}
bool utf8() const {
return PCRE_IS_SET(PCRE_UTF8);
}
RE_Options &set_utf8(bool x) {
PCRE_SET_OR_CLEAR(x, PCRE_UTF8);
}
bool no_auto_capture() const {
return PCRE_IS_SET(PCRE_NO_AUTO_CAPTURE);
}
RE_Options &set_no_auto_capture(bool x) {
PCRE_SET_OR_CLEAR(x, PCRE_NO_AUTO_CAPTURE);
}
RE_Options &set_all_options(int opt) {
all_options_ = opt;
return *this;
}
int all_options() const {
return all_options_ ;
}
// TODO: add other pcre flags
private:
int match_limit_;
int match_limit_recursion_;
int all_options_;
};
// These functions return some common RE_Options
static inline RE_Options UTF8() {
return RE_Options().set_utf8(true);
}
static inline RE_Options CASELESS() {
return RE_Options().set_caseless(true);
}
static inline RE_Options MULTILINE() {
return RE_Options().set_multiline(true);
}
static inline RE_Options DOTALL() {
return RE_Options().set_dotall(true);
}
static inline RE_Options EXTENDED() {
return RE_Options().set_extended(true);
}
// Interface for regular expression matching. Also corresponds to a
// pre-compiled regular expression. An "RE" object is safe for
// concurrent use by multiple threads.
class PCRECPP_EXP_DEFN RE {
public:
// We provide implicit conversions from strings so that users can
// pass in a string or a "const char*" wherever an "RE" is expected.
RE(const string& pat) { Init(pat, NULL); }
RE(const string& pat, const RE_Options& option) { Init(pat, &option); }
RE(const char* pat) { Init(pat, NULL); }
RE(const char* pat, const RE_Options& option) { Init(pat, &option); }
RE(const unsigned char* pat) {
Init(reinterpret_cast<const char*>(pat), NULL);
}
RE(const unsigned char* pat, const RE_Options& option) {
Init(reinterpret_cast<const char*>(pat), &option);
}
// Copy constructor & assignment - note that these are expensive
// because they recompile the expression.
RE(const RE& re) { Init(re.pattern_, &re.options_); }
const RE& operator=(const RE& re) {
if (this != &re) {
Cleanup();
// This is the code that originally came from Google
// Init(re.pattern_.c_str(), &re.options_);
// This is the replacement from Ari Pollak
Init(re.pattern_, &re.options_);
}
return *this;
}
~RE();
// The string specification for this RE. E.g.
// RE re("ab*c?d+");
// re.pattern(); // "ab*c?d+"
const string& pattern() const { return pattern_; }
// If RE could not be created properly, returns an error string.
// Else returns the empty string.
const string& error() const { return *error_; }
/***** The useful part: the matching interface *****/
// This is provided so one can do pattern.ReplaceAll() just as
// easily as ReplaceAll(pattern-text, ....)
bool FullMatch(const StringPiece& text,
const Arg& ptr1 = no_arg,
const Arg& ptr2 = no_arg,
const Arg& ptr3 = no_arg,
const Arg& ptr4 = no_arg,
const Arg& ptr5 = no_arg,
const Arg& ptr6 = no_arg,
const Arg& ptr7 = no_arg,
const Arg& ptr8 = no_arg,
const Arg& ptr9 = no_arg,
const Arg& ptr10 = no_arg,
const Arg& ptr11 = no_arg,
const Arg& ptr12 = no_arg,
const Arg& ptr13 = no_arg,
const Arg& ptr14 = no_arg,
const Arg& ptr15 = no_arg,
const Arg& ptr16 = no_arg) const;
bool PartialMatch(const StringPiece& text,
const Arg& ptr1 = no_arg,
const Arg& ptr2 = no_arg,
const Arg& ptr3 = no_arg,
const Arg& ptr4 = no_arg,
const Arg& ptr5 = no_arg,
const Arg& ptr6 = no_arg,
const Arg& ptr7 = no_arg,
const Arg& ptr8 = no_arg,
const Arg& ptr9 = no_arg,
const Arg& ptr10 = no_arg,
const Arg& ptr11 = no_arg,
const Arg& ptr12 = no_arg,
const Arg& ptr13 = no_arg,
const Arg& ptr14 = no_arg,
const Arg& ptr15 = no_arg,
const Arg& ptr16 = no_arg) const;
bool Consume(StringPiece* input,
const Arg& ptr1 = no_arg,
const Arg& ptr2 = no_arg,
const Arg& ptr3 = no_arg,
const Arg& ptr4 = no_arg,
const Arg& ptr5 = no_arg,
const Arg& ptr6 = no_arg,
const Arg& ptr7 = no_arg,
const Arg& ptr8 = no_arg,
const Arg& ptr9 = no_arg,
const Arg& ptr10 = no_arg,
const Arg& ptr11 = no_arg,
const Arg& ptr12 = no_arg,
const Arg& ptr13 = no_arg,
const Arg& ptr14 = no_arg,
const Arg& ptr15 = no_arg,
const Arg& ptr16 = no_arg) const;
bool FindAndConsume(StringPiece* input,
const Arg& ptr1 = no_arg,
const Arg& ptr2 = no_arg,
const Arg& ptr3 = no_arg,
const Arg& ptr4 = no_arg,
const Arg& ptr5 = no_arg,
const Arg& ptr6 = no_arg,
const Arg& ptr7 = no_arg,
const Arg& ptr8 = no_arg,
const Arg& ptr9 = no_arg,
const Arg& ptr10 = no_arg,
const Arg& ptr11 = no_arg,
const Arg& ptr12 = no_arg,
const Arg& ptr13 = no_arg,
const Arg& ptr14 = no_arg,
const Arg& ptr15 = no_arg,
const Arg& ptr16 = no_arg) const;
bool Replace(const StringPiece& rewrite,
string *str) const;
int GlobalReplace(const StringPiece& rewrite,
string *str) const;
bool Extract(const StringPiece &rewrite,
const StringPiece &text,
string *out) const;
// Escapes all potentially meaningful regexp characters in
// 'unquoted'. The returned string, used as a regular expression,
// will exactly match the original string. For example,
// 1.5-2.0?
// may become:
// 1\.5\-2\.0\?
// Note QuoteMeta behaves the same as perl's QuoteMeta function,
// *except* that it escapes the NUL character (\0) as backslash + 0,
// rather than backslash + NUL.
static string QuoteMeta(const StringPiece& unquoted);
/***** Generic matching interface *****/
// Type of match (TODO: Should be restructured as part of RE_Options)
enum Anchor {
UNANCHORED, // No anchoring
ANCHOR_START, // Anchor at start only
ANCHOR_BOTH // Anchor at start and end
};
// General matching routine. Stores the length of the match in
// "*consumed" if successful.
bool DoMatch(const StringPiece& text,
Anchor anchor,
int* consumed,
const Arg* const* args, int n) const;
// Return the number of capturing subpatterns, or -1 if the
// regexp wasn't valid on construction.
int NumberOfCapturingGroups() const;
// The default value for an argument, to indicate the end of the argument
// list. This must be used only in optional argument defaults. It should NOT
// be passed explicitly. Some people have tried to use it like this:
//
// FullMatch(x, y, &z, no_arg, &w);
//
// This is a mistake, and will not work.
static Arg no_arg;
private:
void Init(const string& pattern, const RE_Options* options);
// Old version from PCRE 6.x, for compatibility
void Init(const char *pattern, const RE_Options* options);
void Cleanup();
// Match against "text", filling in "vec" (up to "vecsize" * 2/3) with
// pairs of integers for the beginning and end positions of matched
// text. The first pair corresponds to the entire matched text;
// subsequent pairs correspond, in order, to parentheses-captured
// matches. Returns the number of pairs (one more than the number of
// the last subpattern with a match) if matching was successful
// and zero if the match failed.
// I.e. for RE("(foo)|(bar)|(baz)") it will return 2, 3, and 4 when matching
// against "foo", "bar", and "baz" respectively.
// When matching RE("(foo)|hello") against "hello", it will return 1.
// But the values for all subpattern are filled in into "vec".
int TryMatch(const StringPiece& text,
int startpos,
Anchor anchor,
bool empty_ok,
int *vec,
int vecsize) const;
// Append the "rewrite" string, with backslash subsitutions from "text"
// and "vec", to string "out".
bool Rewrite(string *out,
const StringPiece& rewrite,
const StringPiece& text,
int *vec,
int veclen) const;
// internal implementation for DoMatch
bool DoMatchImpl(const StringPiece& text,
Anchor anchor,
int* consumed,
const Arg* const args[],
int n,
int* vec,
int vecsize) const;
// Compile the regexp for the specified anchoring mode
pcre* Compile(Anchor anchor);
string pattern_;
RE_Options options_;
pcre* re_full_; // For full matches
pcre* re_partial_; // For partial matches
const string* error_; // Error indicator (or points to empty string)
};
} // namespace pcrecpp
#endif /* _PCRECPP_H */
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