54 lines
2 KiB
C
54 lines
2 KiB
C
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//---------------------------------------------------------------------------
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// Scanner.h - supports parsing lines & text files
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//---------------------------------------------------------------------------
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#pragma once
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//---------------------------------------------------------------------------
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#define ISNUMSTART(p) ((isdigit(*p)) || (*p == '-') || (*p == '+'))
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#define IS_NAME_CHAR(p) ((isalnum(*p)) || (*p == '_') || (*p == '-'))
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//---------------------------------------------------------------------------
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#define MAX_ID_LEN _MAX_PATH
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#define MAX_INPUT_LINE 255
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//---------------------------------------------------------------------------
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class CScanner
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{
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public:
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CScanner(LPCWSTR pszTextToScan=NULL);
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~CScanner();
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HRESULT AttachFile(LPCWSTR pszFileName);
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BOOL AttachLine(LPCWSTR pszLine);
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BOOL AttachMultiLineBuffer(LPCWSTR pszBuffer, LPCWSTR pszFileName);
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BOOL GetId(LPWSTR pszIdBuff, DWORD dwMaxLen=MAX_ID_LEN);
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BOOL GetIdPair(LPWSTR pszIdBuff, LPWSTR pszValueBuff, DWORD dwMaxLen=MAX_ID_LEN);
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BOOL GetKeyword(LPCWSTR pszKeyword);
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BOOL GetFileName(LPWSTR pszBuff, DWORD dwMaxLen);
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BOOL GetNumber(int *piVal);
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BOOL IsNameChar(BOOL fOkToSkip=TRUE);
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BOOL IsFileNameChar(BOOL fOkToSkip);
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BOOL IsNumStart();
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BOOL GetChar(const WCHAR val);
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BOOL EndOfLine();
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BOOL EndOfFile();
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BOOL ForceNextLine();
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BOOL SkipSpaces(); // called by CScanner before all checking routines
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BOOL ReadNextLine();
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void UseSymbol(LPCWSTR pszSymbol);
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protected:
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void ResetAll(BOOL fPossiblyAllocated);
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public:
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//---- data ----
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const WCHAR *_p; // accessible for special comparisons
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const WCHAR *_pSymbol; // if not null, use this instead of _p
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WCHAR _szLineBuff[MAX_INPUT_LINE+1];
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WCHAR _szFileName[_MAX_PATH+1];
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LPCWSTR _pszMultiLineBuffer;
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LPWSTR _pszFileText;
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int _iLineNum;
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BOOL _fEndOfFile;
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BOOL _fBlankSoFar;
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BOOL _fUnicodeInput;
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};
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//---------------------------------------------------------------------------
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