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// Copyright (C) 2011 Google Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// Author: Philippe Liard
#ifndef I18N_PHONENUMBERS_STRINGUTIL_H_
#define I18N_PHONENUMBERS_STRINGUTIL_H_
#include <cstddef>
#include <string>
#include "base/basictypes.h"
namespace i18n {
namespace phonenumbers {
using std::string;
// Supports string("hello") + 10.
string operator+(const string& s, int n);
// Converts integer to string.
string SimpleItoa(uint64 n);
string SimpleItoa(int n);
// Replaces any occurrence of the character 'remove' (or the characters
// in 'remove') with the character 'replacewith'.
void StripString(string* s, const char* remove, char replacewith);
// Returns true if 'in' starts with 'prefix' and writes 'in' minus 'prefix' into
// 'out'.
bool TryStripPrefixString(const string& in, const string& prefix, string* out);
// Returns true if 's' ends with 'suffix'.
bool HasSuffixString(const string& s, const string& suffix);
// Converts string to int32.
void safe_strto32(const string& s, int32 *n);
// Converts string to uint64.
void safe_strtou64(const string& s, uint64 *n);
// Remove all occurrences of a given set of characters from a string.
void strrmm(string* s, const string& chars);
// Replaces all instances of 'substring' in 's' with 'replacement'. Returns the
// number of instances replaced. Replacements are not subject to re-matching.
int GlobalReplaceSubstring(const string& substring, const string& replacement,
string* s);
// Holds a reference to a std::string or C string. It can also be constructed
// from an integer which is converted to a string.
class StringHolder {
public:
// Don't make the constructors explicit to make the StrCat usage convenient.
StringHolder(const string& s);
StringHolder(const char* s);
StringHolder(uint64 n);
~StringHolder();
const string* GetString() const {
return string_;
}
const char* GetCString() const {
return cstring_;
}
size_t Length() const {
return len_;
}
private:
const string converted_string_; // Stores the string converted from integer.
const string* const string_;
const char* const cstring_;
const size_t len_;
};
string& operator+=(string& lhs, const StringHolder& rhs);
// Efficient string concatenation.
string StrCat(const StringHolder& s1, const StringHolder& s2);
string StrCat(const StringHolder& s1, const StringHolder& s2,
const StringHolder& s3);
string StrCat(const StringHolder& s1, const StringHolder& s2,
const StringHolder& s3, const StringHolder& s4);
string StrCat(const StringHolder& s1, const StringHolder& s2,
const StringHolder& s3, const StringHolder& s4,
const StringHolder& s5);
string StrCat(const StringHolder& s1, const StringHolder& s2,
const StringHolder& s3, const StringHolder& s4,
const StringHolder& s5, const StringHolder& s6);
string StrCat(const StringHolder& s1, const StringHolder& s2,
const StringHolder& s3, const StringHolder& s4,
const StringHolder& s5, const StringHolder& s6,
const StringHolder& s7);
string StrCat(const StringHolder& s1, const StringHolder& s2,
const StringHolder& s3, const StringHolder& s4,
const StringHolder& s5, const StringHolder& s6,
const StringHolder& s7, const StringHolder& s8,
const StringHolder& s9, const StringHolder& s10,
const StringHolder& s11);
void StrAppend(string* dest, const StringHolder& s1);
void StrAppend(string* dest, const StringHolder& s1, const StringHolder& s2);
} // namespace phonenumbers
} // namespace i18n
#endif // I18N_PHONENUMBERS_STRINGUTIL_H_
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