103 lines
2.2 KiB
C
103 lines
2.2 KiB
C
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/*
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Copyright (c) 1997-1999 Microsoft Corporation
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*/
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#ifndef __SDP_LINE_TRANSITION__
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#define __SDP_LINE_TRANSITION__
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#include "sdpdef.h"
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// this value indicates that line transitions have reached an end state
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// this value needs to be different from the value of any of the line states
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const DWORD LINE_END = 10000;
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struct LINE_TRANSITION
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{
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CHAR m_SeparatorChar;
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DWORD m_NewLineState;
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};
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struct LINE_TRANSITION_INFO
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{
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DWORD m_LineState;
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CHAR *m_SeparatorChars;
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BYTE m_NumTransitions;
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const LINE_TRANSITION *m_Transitions; // array of state transitions
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};
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#define LINE_TRANSITION_ENTRY(State, TransitionsArray) \
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{ \
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State, \
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NULL, \
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(BYTE)((NULL == TransitionsArray)? 0 : sizeof(TransitionsArray)/sizeof(LINE_TRANSITION)), \
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TransitionsArray \
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}
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class SDP_LINE_TRANSITION
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{
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public:
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SDP_LINE_TRANSITION(
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IN LINE_TRANSITION_INFO *LineTransitionInfo,
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IN DWORD NumStates
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);
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inline BOOL IsValid() const;
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inline DWORD GetNumStates() const;
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inline const LINE_TRANSITION_INFO *GetAt(IN DWORD LineState) const;
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~SDP_LINE_TRANSITION();
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protected:
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BOOL m_IsValid;
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LINE_TRANSITION_INFO * const m_LineTransitionInfo;
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DWORD m_NumStates;
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};
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inline BOOL
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SDP_LINE_TRANSITION::IsValid(
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) const
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{
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return m_IsValid;
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}
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inline DWORD
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SDP_LINE_TRANSITION::GetNumStates(
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) const
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{
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return m_NumStates;
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}
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inline const LINE_TRANSITION_INFO *
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SDP_LINE_TRANSITION::GetAt(
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IN DWORD LineState
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) const
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{
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ASSERT(LineState < m_NumStates);
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if ( LineState >= m_NumStates )
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{
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SetLastError(SDP_INTERNAL_ERROR);
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return NULL;
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}
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return &m_LineTransitionInfo[LineState];
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}
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#endif // __SDP_LINE_TRANSITION__
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