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/*
*
* Copyright 2014, 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.
*
*/
#ifndef NET_GRPC_COMPILER_RUBY_GENERATOR_STRING_INL_H_
#define NET_GRPC_COMPILER_RUBY_GENERATOR_STRING_INL_H_
#include <algorithm>
#include <string>
#include <sstream>
#include <vector>
using std::getline;
using std::transform;
namespace grpc_ruby_generator {
// Split splits a string using char into elems.
inline vector<string> &Split(const string &s, char delim,
vector<string>* elems) {
stringstream ss(s);
string item;
while (getline(ss, item, delim)) {
elems->push_back(item);
}
return *elems;
}
// Split splits a string using char, returning the result in a vector.
inline vector<string> Split(const string &s, char delim) {
vector<string> elems;
Split(s, delim, &elems);
return elems;
}
// Replace replaces from with to in s.
inline string Replace(string s, const string& from, const string& to) {
size_t start_pos = s.find(from);
if (start_pos == string::npos) {
return s;
}
s.replace(start_pos, from.length(), to);
return s;
}
// ReplaceAll replaces all instances of search with replace in s.
inline string ReplaceAll(string s, const string& search,
const string& replace) {
size_t pos = 0;
while ((pos = s.find(search, pos)) != string::npos) {
s.replace(pos, search.length(), replace);
pos += replace.length();
}
return s;
}
// ReplacePrefix replaces from with to in s if search is a prefix of s.
inline bool ReplacePrefix(string* s, const string& from, const string& to) {
size_t start_pos = s->find(from);
if (start_pos == string::npos || start_pos != 0) {
return false;
}
s->replace(start_pos, from.length(), to);
return true;
}
// CapitalizeFirst capitalizes the first char in a string.
inline string CapitalizeFirst(string s) {
if (s.empty()) {
return s;
}
s[0] = ::toupper(s[0]);
return s;
}
// RubyTypeOf updates a proto type to the required ruby equivalent.
inline string RubyTypeOf(const string& a_type, const string& package) {
string res(a_type);
ReplacePrefix(&res, package, ""); // remove the leading package if present
ReplacePrefix(&res, ".", ""); // remove the leading . (no package)
if (res.find('.') == string::npos) {
return res;
} else {
vector<string> prefixes_and_type = Split(res, '.');
for (unsigned int i = 0; i < prefixes_and_type.size(); ++i) {
if (i != 0) {
res += "::"; // switch '.' to the ruby module delim
}
if (i < prefixes_and_type.size() - 1) {
res += CapitalizeFirst(prefixes_and_type[i]); // capitalize pkgs
} else {
res += prefixes_and_type[i];
}
}
return res;
}
}
} // namespace grpc_ruby_generator
#endif // NET_GRPC_COMPILER_RUBY_GENERATOR_STRING_INL_H_
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