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- Committer: jazzynico
- Date: 2016-07-05 12:59:20 UTC
- Revision ID: nicoduf@yahoo.fr-20160705125920-nv1a00fymnau9mxk
Adding libpcre (recommended for glib).
- files added:
- bin/libpcre-1.dll
added
removed
include/pcre_stringpiece.h
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// Copyright (c) 2005, Google Inc.
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// All rights reserved.
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//
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are
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// met:
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//
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// * Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above
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// copyright notice, this list of conditions and the following disclaimer
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// in the documentation and/or other materials provided with the
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// distribution.
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// * Neither the name of Google Inc. nor the names of its
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// contributors may be used to endorse or promote products derived from
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// this software without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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//
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// Author: Sanjay Ghemawat
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//
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// A string like object that points into another piece of memory.
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// Useful for providing an interface that allows clients to easily
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// pass in either a "const char*" or a "string".
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//
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// Arghh! I wish C++ literals were automatically of type "string".
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#ifndef _PCRE_STRINGPIECE_H
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#define _PCRE_STRINGPIECE_H
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#include <cstring>
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#include <string>
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#include <iosfwd> // for ostream forward-declaration
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#if 0
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#define HAVE_TYPE_TRAITS
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#include <type_traits.h>
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#elif 0
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#define HAVE_TYPE_TRAITS
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#include <bits/type_traits.h>
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#endif
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#include <pcre.h>
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using std::memcmp;
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using std::strlen;
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using std::string;
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namespace pcrecpp {
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class PCRECPP_EXP_DEFN StringPiece {
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private:
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const char* ptr_;
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int length_;
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public:
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// We provide non-explicit singleton constructors so users can pass
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// in a "const char*" or a "string" wherever a "StringPiece" is
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// expected.
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StringPiece()
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: ptr_(NULL), length_(0) { }
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StringPiece(const char* str)
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: ptr_(str), length_(static_cast<int>(strlen(ptr_))) { }
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StringPiece(const unsigned char* str)
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: ptr_(reinterpret_cast<const char*>(str)),
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length_(static_cast<int>(strlen(ptr_))) { }
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StringPiece(const string& str)
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: ptr_(str.data()), length_(static_cast<int>(str.size())) { }
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StringPiece(const char* offset, int len)
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: ptr_(offset), length_(len) { }
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// data() may return a pointer to a buffer with embedded NULs, and the
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// returned buffer may or may not be null terminated. Therefore it is
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// typically a mistake to pass data() to a routine that expects a NUL
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// terminated string. Use "as_string().c_str()" if you really need to do
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// this. Or better yet, change your routine so it does not rely on NUL
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// termination.
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const char* data() const { return ptr_; }
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int size() const { return length_; }
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bool empty() const { return length_ == 0; }
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void clear() { ptr_ = NULL; length_ = 0; }
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void set(const char* buffer, int len) { ptr_ = buffer; length_ = len; }
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void set(const char* str) {
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ptr_ = str;
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length_ = static_cast<int>(strlen(str));
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}
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void set(const void* buffer, int len) {
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ptr_ = reinterpret_cast<const char*>(buffer);
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length_ = len;
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}
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char operator[](int i) const { return ptr_[i]; }
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void remove_prefix(int n) {
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ptr_ += n;
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length_ -= n;
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}
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void remove_suffix(int n) {
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length_ -= n;
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}
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bool operator==(const StringPiece& x) const {
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return ((length_ == x.length_) &&
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(memcmp(ptr_, x.ptr_, length_) == 0));
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}
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bool operator!=(const StringPiece& x) const {
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return !(*this == x);
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}
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#define STRINGPIECE_BINARY_PREDICATE(cmp,auxcmp) \
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bool operator cmp (const StringPiece& x) const { \
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int r = memcmp(ptr_, x.ptr_, length_ < x.length_ ? length_ : x.length_); \
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return ((r auxcmp 0) || ((r == 0) && (length_ cmp x.length_))); \
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}
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STRINGPIECE_BINARY_PREDICATE(<, <);
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STRINGPIECE_BINARY_PREDICATE(<=, <);
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STRINGPIECE_BINARY_PREDICATE(>=, >);
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STRINGPIECE_BINARY_PREDICATE(>, >);
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#undef STRINGPIECE_BINARY_PREDICATE
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int compare(const StringPiece& x) const {
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int r = memcmp(ptr_, x.ptr_, length_ < x.length_ ? length_ : x.length_);
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if (r == 0) {
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if (length_ < x.length_) r = -1;
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else if (length_ > x.length_) r = +1;
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}
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return r;
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}
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string as_string() const {
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return string(data(), size());
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}
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void CopyToString(string* target) const {
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target->assign(ptr_, length_);
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}
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// Does "this" start with "x"
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bool starts_with(const StringPiece& x) const {
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return ((length_ >= x.length_) && (memcmp(ptr_, x.ptr_, x.length_) == 0));
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}
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};
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} // namespace pcrecpp
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// ------------------------------------------------------------------
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// Functions used to create STL containers that use StringPiece
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// Remember that a StringPiece's lifetime had better be less than
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// that of the underlying string or char*. If it is not, then you
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// cannot safely store a StringPiece into an STL container
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// ------------------------------------------------------------------
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#ifdef HAVE_TYPE_TRAITS
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// This makes vector<StringPiece> really fast for some STL implementations
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template<> struct __type_traits<pcrecpp::StringPiece> {
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typedef __true_type has_trivial_default_constructor;
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typedef __true_type has_trivial_copy_constructor;
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typedef __true_type has_trivial_assignment_operator;
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typedef __true_type has_trivial_destructor;
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typedef __true_type is_POD_type;
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};
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#endif
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// allow StringPiece to be logged
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PCRECPP_EXP_DECL std::ostream& operator<<(std::ostream& o,
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const pcrecpp::StringPiece& piece);
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#endif /* _PCRE_STRINGPIECE_H */
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