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205afe6798
This corresponds with the branchpoint for the 3.6 release. A number of files not required for the FreeBSD build have been removed. Sponsored by: DARPA, AFRL
73 lines
1.5 KiB
C++
73 lines
1.5 KiB
C++
//===--------------------- StringLexer.h -------------------------*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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#ifndef utility_StringLexer_h_
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#define utility_StringLexer_h_
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#include <initializer_list>
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#include <list>
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#include <string>
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namespace lldb_utility {
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class StringLexer
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{
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public:
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typedef std::string::size_type Position;
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typedef std::string::size_type Size;
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typedef std::string::value_type Character;
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StringLexer (std::string s);
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StringLexer (const StringLexer& rhs);
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// These APIs are not bounds-checked. Use HasAtLeast() if you're not sure.
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Character
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Peek ();
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bool
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NextIf (Character c);
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std::pair<bool, Character>
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NextIf (std::initializer_list<Character> cs);
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bool
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AdvanceIf (const std::string& token);
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Character
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Next ();
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bool
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HasAtLeast (Size s);
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bool
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HasAny (Character c);
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std::string
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GetUnlexed ();
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// This will assert if there are less than s characters preceding the cursor.
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void
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PutBack (Size s);
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StringLexer&
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operator = (const StringLexer& rhs);
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private:
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std::string m_data;
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Position m_position;
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void
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Consume();
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};
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} // namespace lldb_private
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#endif // #ifndef utility_StringLexer_h_
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