| 1 | // Copyright 2009-2021 Intel Corporation |
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| 2 | // SPDX-License-Identifier: Apache-2.0 |
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| 3 | |
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| 4 | #pragma once |
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| 5 | |
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| 6 | #include "stream.h" |
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| 7 | |
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| 8 | namespace embree |
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| 9 | { |
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| 10 | /*! simple tokenizer that produces a string stream */ |
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| 11 | class StringStream : public Stream<std::string> |
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| 12 | { |
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| 13 | public: |
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| 14 | StringStream(const Ref<Stream<int> >& cin, const std::string& seps = "\n\t\r " , |
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| 15 | const std::string& endl = "" , bool multiLine = false); |
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| 16 | public: |
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| 17 | ParseLocation location() { return cin->loc(); } |
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| 18 | std::string next(); |
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| 19 | private: |
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| 20 | __forceinline bool isSeparator(unsigned int c) const { return c<256 && isSepMap[c]; } |
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| 21 | __forceinline bool isValidChar(unsigned int c) const { return c<256 && isValidCharMap[c]; } |
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| 22 | private: |
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| 23 | Ref<Stream<int> > cin; /*! source character stream */ |
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| 24 | bool isSepMap[256]; /*! map for fast classification of separators */ |
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| 25 | bool isValidCharMap[256]; /*! map for valid characters */ |
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| 26 | std::string endl; /*! the token of the end of line */ |
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| 27 | bool multiLine; /*! whether to parse lines wrapped with \ */ |
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| 28 | }; |
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| 29 | } |
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| 30 | |
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