56 lines
2.3 KiB
C++
Executable File
56 lines
2.3 KiB
C++
Executable File
// ======================================================================== //
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// Copyright 2009-2014 Intel Corporation //
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// //
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// Licensed under the Apache License, Version 2.0 (the "License"); //
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// you may not use this file except in compliance with the License. //
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// You may obtain a copy of the License at //
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// //
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// http://www.apache.org/licenses/LICENSE-2.0 //
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// //
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// Unless required by applicable law or agreed to in writing, software //
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// distributed under the License is distributed on an "AS IS" BASIS, //
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. //
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// See the License for the specific language governing permissions and //
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// limitations under the License. //
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// ======================================================================== //
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#include "stringstream.h"
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namespace embree
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{
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/* creates map for fast categorization of characters */
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static void createCharMap(bool map[256], const std::string& chrs) {
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for (size_t i=0; i<256; i++) map[i] = false;
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for (size_t i=0; i<chrs.size(); i++) map[uint8(chrs[i])] = true;
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}
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/* simple tokenizer */
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StringStream::StringStream(const Ref<Stream<int> >& cin, const std::string& seps, const std::string& endl, bool multiLine)
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: cin(cin), endl(endl), multiLine(multiLine)
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{
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createCharMap(isSepMap,seps);
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}
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std::string StringStream::next()
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{
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/* skip separators */
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while (cin->peek() != EOF) {
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if (endl != "" && cin->peek() == '\n') { cin->drop(); return endl; }
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if (multiLine && cin->peek() == '\\') {
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cin->drop();
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if (cin->peek() == '\n') { cin->drop(); continue; }
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cin->unget();
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}
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if (!isSeparator(cin->peek())) break;
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cin->drop();
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}
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/* parse everything until the next separator */
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std::vector<char> str; str.reserve(64);
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while (cin->peek() != EOF && !isSeparator(cin->peek()))
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str.push_back((char)cin->get());
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str.push_back(0);
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return std::string(str.data());
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}
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}
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