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// Copyright 2015 Google Inc. All rights reserved
//
// 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.
#ifndef STRUTIL_H_
#define STRUTIL_H_
#include <string>
#include <vector>
#include <limits.h>
// GNU Hurd doesn't have PATH_MAX
#if defined(__GNU__) && !defined(PATH_MAX)
#define PATH_MAX 4096
#endif
#include "string_piece.h"
using namespace std;
class WordScanner {
public:
struct Iterator {
Iterator& operator++();
StringPiece operator*() const;
bool operator!=(const Iterator& r) const {
return in != r.in || s != r.s || i != r.i;
}
const StringPiece* in;
int s;
int i;
};
explicit WordScanner(StringPiece in);
Iterator begin() const;
Iterator end() const;
void Split(vector<StringPiece>* o);
private:
StringPiece in_;
};
class WordWriter {
public:
explicit WordWriter(string* o);
void MaybeAddWhitespace();
void Write(StringPiece s);
private:
string* out_;
bool needs_space_;
};
// Temporary modifies s[s.size()] to '\0'.
class ScopedTerminator {
public:
explicit ScopedTerminator(StringPiece s);
~ScopedTerminator();
private:
StringPiece s_;
char c_;
};
template <class String>
inline string JoinStrings(vector<String> v, const char* sep) {
string r;
for (StringPiece s : v) {
if (!r.empty()) {
r += sep;
}
r.append(s.begin(), s.end());
}
return r;
}
void AppendString(StringPiece str, string* out);
bool HasPrefix(StringPiece str, StringPiece prefix);
bool HasSuffix(StringPiece str, StringPiece suffix);
bool HasWord(StringPiece str, StringPiece w);
StringPiece TrimPrefix(StringPiece str, StringPiece suffix);
StringPiece TrimSuffix(StringPiece str, StringPiece suffix);
class Pattern {
public:
explicit Pattern(StringPiece pat);
bool Match(StringPiece str) const;
StringPiece Stem(StringPiece str) const;
void AppendSubst(StringPiece str, StringPiece subst, string* out) const;
void AppendSubstRef(StringPiece str, StringPiece subst, string* out) const;
private:
bool MatchImpl(StringPiece str) const;
StringPiece pat_;
size_t percent_index_;
};
string NoLineBreak(const string& s);
StringPiece TrimLeftSpace(StringPiece s);
StringPiece TrimRightSpace(StringPiece s);
StringPiece TrimSpace(StringPiece s);
StringPiece Dirname(StringPiece s);
StringPiece Basename(StringPiece s);
StringPiece GetExt(StringPiece s);
StringPiece StripExt(StringPiece s);
void NormalizePath(string* o);
void AbsPath(StringPiece s, string* o);
size_t FindOutsideParen(StringPiece s, char c);
size_t FindTwoOutsideParen(StringPiece s, char c1, char c2);
size_t FindThreeOutsideParen(StringPiece s, char c1, char c2, char c3);
size_t FindEndOfLine(StringPiece s, size_t e, size_t* lf_cnt);
// Strip leading sequences of './' from file names, so that ./file
// and file are considered to be the same file.
// From http://www.gnu.org/software/make/manual/make.html#Features
StringPiece TrimLeadingCurdir(StringPiece s);
void FormatForCommandSubstitution(string* s);
string SortWordsInString(StringPiece s);
string ConcatDir(StringPiece b, StringPiece n);
string EchoEscape(const string& str);
void EscapeShell(string* s);
#endif // STRUTIL_H_
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