514 lines
16 KiB
C
514 lines
16 KiB
C
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//*******************************************************************
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//*
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//* PICSRule.h
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//*
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//* Revision History:
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//* Created 7/98 - Mark Hammond (t-markh)
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//*
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//* Contains classes and function prototypes
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//* used for processing PICSRules files.
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//*
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//*******************************************************************
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#ifndef PICS_RULE_H
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#define PICS_RULE_H
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//*******************************************************************
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//*
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//* Function Prototypes / class declarations
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//*
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//*******************************************************************
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//Forward class declarations
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class PICSRulesQuotedURL;
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class PICSRulesQuotedEmail;
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class PICSRulesQuotedDate;
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class PICSRulesYesNo;
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class PICSRulesPassFail;
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class PICSRulesPolicyExpression;
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class PICSRulesByURL;
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class PICSRulesPolicy;
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class PICSRulesName;
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class PICSRulesSource;
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class PICSRulesServiceInfo;
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class PICSRulesOptExtension;
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class PICSRulesReqExtension;
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class PICSRulesFileParser;
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class PICSRulesRatingSystem;
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class CParsedLabelList;
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//This function is called by ApprovedSitesDlgProc while processing
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//WM_COMMOND with LOWORD(wParam)==IDC_PICSRULESOPEN in msludlg.cpp
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//The argument lpszFileName is the name of the PICSRules file
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//selected by the user to import.
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//
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//This begins the PICSRules Import process.
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HRESULT PICSRulesImport(char *lpszFileName, PICSRulesRatingSystem **pprrsOut);
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//For reading and saving processed PICSRules from the registry
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HRESULT PICSRulesSaveToRegistry(DWORD dwSystemToSave, PICSRulesRatingSystem **ppPRRS);
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HRESULT PICSRulesReadFromRegistry(DWORD dwSystemToRead, PICSRulesRatingSystem **ppPRRS);
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HRESULT PICSRulesDeleteSystem(DWORD dwSystemToDelete);
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HRESULT PICSRulesSetNumSystems(DWORD dwNumSystems);
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HRESULT PICSRulesGetNumSystems(DWORD * pdwNumSystems);
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HRESULT PICSRulesCheckApprovedSitesAccess(LPCSTR lpszUrl,BOOL *fPassFail);
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HRESULT PICSRulesCheckAccess(LPCSTR lpszUrl,LPCSTR lpszRatingInfo,BOOL *fPassFail,CParsedLabelList **ppParsed);
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void PICSRulesOutOfMemory();
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//The following are handler functions which parse the various
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//kinds of content which can occur within a parenthesized object.
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//
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//ppszIn is always advanced to the next non-white space token
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//ppszOut returns the processed data
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HRESULT PICSRulesParseString(LPSTR *ppszIn, LPVOID *ppOut, PICSRulesFileParser *pParser);
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HRESULT PICSRulesParseNumber(LPSTR *ppszIn, LPVOID *ppOut, PICSRulesFileParser *pParser);
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HRESULT PICSRulesParseYesNo(LPSTR *ppszIn, LPVOID *ppOut, PICSRulesFileParser *pParser);
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HRESULT PICSRulesParsePassFail(LPSTR *ppszIn, LPVOID *ppOut, PICSRulesFileParser *pParser);
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BOOL IsURLValid(WCHAR wcszURL[]);
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//*******************************************************************
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//*
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//* Definitions used by the PICSRules code
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//*
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//*******************************************************************
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#define PR_QUOTE_DOUBLE 1
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#define PR_QUOTE_SINGLE 0
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#define BYURL_SCHEME 1
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#define BYURL_USER 2
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#define BYURL_HOST 4
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#define BYURL_PORT 8
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#define BYURL_PATH 16
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#define PICSRULES_FIRSTSYSTEMINDEX 100
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#define PICSRULES_MAXSYSTEM 1000000
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#define PICSRULES_APPROVEDSITES 0
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#define PICSRULES_ALWAYS 1
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#define PICSRULES_NEVER 0
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#define PICSRULES_PAGE 1
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#define PICSRULES_SITE 0
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#define PICS_LABEL_FROM_HEADER 0
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#define PICS_LABEL_FROM_PAGE 1
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#define PICS_LABEL_FROM_BUREAU 2
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struct PICSRULES_VERSION
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{
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int iPICSRulesVerMajor,iPICSRulesVerMinor;
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};
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//Data types for the necessary logic in evaluating
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//the rules.
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enum PICSRulesOperators
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{
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PR_OPERATOR_INVALID,
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PR_OPERATOR_GREATEROREQUAL,
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PR_OPERATOR_GREATER,
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PR_OPERATOR_EQUAL,
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PR_OPERATOR_LESSOREQUAL,
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PR_OPERATOR_LESS,
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PR_OPERATOR_DEGENERATE,
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PR_OPERATOR_SERVICEONLY,
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PR_OPERATOR_SERVICEANDCATEGORY,
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PR_OPERATOR_RESULT
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};
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enum PICSRulesEvaluation
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{
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PR_EVALUATION_DOESAPPLY,
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PR_EVALUATION_DOESNOTAPPLY
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};
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//This indicates which member is valid in a PICSRulesPolicy
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//Class
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enum PICSRulesPolicyAttribute
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{
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PR_POLICY_NONEVALID,
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PR_POLICY_REJECTBYURL,
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PR_POLICY_ACCEPTBYURL,
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PR_POLICY_REJECTIF,
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PR_POLICY_ACCEPTIF,
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PR_POLICY_REJECTUNLESS,
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PR_POLICY_ACCEPTUNLESS
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};
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//This indicates if a PolicyExpression is embedded in another
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//PolicyExpression, and if so, what logic to use.
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enum PICSRulesPolicyEmbedded
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{
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PR_POLICYEMBEDDED_NONE,
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PR_POLICYEMBEDDED_OR,
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PR_POLICYEMBEDDED_AND
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};
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//*******************************************************************
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//*
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//* Classes to handle possible value types... all derive from
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//* ETS (the encapsulated string type) since the are found as
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//* strings during processing.
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//*
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//* The Set() and SetTo() member functions are overloaded on the
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//* types which convert from a string. We want to keep the original
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//* string in case the data is invalid.
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//*
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//* Additional member functions are provided to assure that the
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//* data is what it says it is, and to return the non-string type.
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//*
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//*******************************************************************
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class PICSRulesByURLExpression
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{
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public:
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PICSRulesByURLExpression();
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~PICSRulesByURLExpression();
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BOOL m_fInternetPattern;
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BYTE m_bNonWild,m_bSpecified;
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ETS m_etstrScheme,m_etstrUser,m_etstrHost,m_etstrPort,m_etstrPath,m_etstrURL;
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};
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class PICSRulesQuotedURL : public ETS
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{
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public:
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PICSRulesQuotedURL();
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~PICSRulesQuotedURL();
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BOOL IsURLValid();
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BOOL IsURLValid(char * lpszURL);
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BOOL IsURLValid(ETS etstrURL);
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};
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class PICSRulesQuotedEmail : public ETS
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{
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public:
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PICSRulesQuotedEmail();
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~PICSRulesQuotedEmail();
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BOOL IsEmailValid();
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BOOL IsEmailValid(char * lpszEmail);
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BOOL IsEmailValid(ETS etstrEmail);
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};
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class PICSRulesQuotedDate : public ETS
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{
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public:
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PICSRulesQuotedDate();
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~PICSRulesQuotedDate();
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BOOL IsDateValid();
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BOOL IsDateValid(char * lpszDate);
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BOOL IsDateValid(ETS etstrDate);
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HRESULT Set(const char *pIn);
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HRESULT SetTo(char *pIn);
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DWORD GetDate()
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{
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return m_dwDate;
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};
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private:
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DWORD m_dwDate;
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};
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class PICSRulesYesNo : public ETS
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{
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public:
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PICSRulesYesNo();
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~PICSRulesYesNo();
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void Set(const BOOL *pIn);
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void SetTo(BOOL *pIn);
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BOOL GetYesNo()
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{
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return m_fYesOrNo;
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};
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private:
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BOOL m_fYesOrNo;
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};
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class PICSRulesPassFail : public ETS
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{
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public:
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PICSRulesPassFail();
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~PICSRulesPassFail();
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void Set(const BOOL *pIn);
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void SetTo(BOOL *pIn);
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BOOL GetPassFail()
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{
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return m_fPassOrFail;
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};
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private:
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BOOL m_fPassOrFail;
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};
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//*******************************************************************
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//*
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//* The PICSRulesPolicy class handles the "Policy" token
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//* from a PICSRules stream, and its attributes (square brackets
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//* denote the primary attribute):
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//*
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//* Policy (
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//* [Explanation] quoted
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//* RejectByURL URL | ( [patterns] URL )
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//* AcceptByURL URL | ( [patterns] URL )
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//* RejectIf PolicyExpression
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//* RejectUnless PolicyExpression
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//* AcceptIf PolicyExpression
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//* AcceptUnless PolicyExpression
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//* *Extension* )
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//*
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//*******************************************************************
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class PICSRulesPolicyExpression
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{
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public:
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PICSRulesPolicyExpression * m_pPRPolicyExpressionLeft,
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* m_pPRPolicyExpressionRight;
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ETS m_etstrServiceName,m_etstrCategoryName,
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m_etstrFullServiceName;
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ETN m_etnValue;
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PICSRulesYesNo m_prYesNoUseEmbedded;
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enum PICSRulesOperators m_PROPolicyOperator;
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enum PICSRulesPolicyEmbedded m_PRPEPolicyEmbedded;
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PICSRulesPolicyExpression();
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~PICSRulesPolicyExpression();
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PICSRulesEvaluation EvaluateRule(CParsedLabelList *pParsed);
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};
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class PICSRulesByURL
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{
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public:
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array<PICSRulesByURLExpression*> m_arrpPRByURL;
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PICSRulesByURL();
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~PICSRulesByURL();
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PICSRulesEvaluation EvaluateRule(PICSRulesQuotedURL *pprurlComparisonURL);
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};
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class PICSRulesPolicy : public PICSRulesObjectBase
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{
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public:
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ETS m_etstrExplanation;
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PICSRulesPolicyExpression * m_pPRRejectIf,* m_pPRRejectUnless,
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* m_pPRAcceptIf,* m_pPRAcceptUnless;
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PICSRulesByURL * m_pPRRejectByURL,* m_pPRAcceptByURL;
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PICSRulesPolicyAttribute m_PRPolicyAttribute;
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PICSRulesPolicy();
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~PICSRulesPolicy();
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HRESULT AddItem(PICSRulesObjectID proid, LPVOID pData);
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HRESULT InitializeMyDefaults();
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};
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//*******************************************************************
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//*
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//* The PICSRulesName class handles the "name" token
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//* from a PICSRules stream, and its attributes (square brackets
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//* denote the primary attribute):
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//*
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//* name (
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//* [Rulename] quoted
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//* Description quoted
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//* *Extension* )
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//*
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//*******************************************************************
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class PICSRulesName : public PICSRulesObjectBase
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{
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public:
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ETS m_etstrRuleName,m_etstrDescription;
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PICSRulesName();
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~PICSRulesName();
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HRESULT AddItem(PICSRulesObjectID proid, LPVOID pData);
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HRESULT InitializeMyDefaults();
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};
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//*******************************************************************
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//*
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//* The PICSRulesSource class handles the "source" token
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//* from a PICSRules stream, and its attributes (square brackets
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//* denote the primary attribute):
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//*
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//* source (
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//* [SourceURL] URL
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//* CreationTool quoted (has format toolname/version)
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//* author email
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//* LastModified ISO Date
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//* *Extension* )
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//*
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//*******************************************************************
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class PICSRulesSource : public PICSRulesObjectBase
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{
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public:
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PICSRulesQuotedURL m_prURLSourceURL;
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ETS m_etstrCreationTool;
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PICSRulesQuotedEmail m_prEmailAuthor;
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PICSRulesQuotedDate m_prDateLastModified;
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PICSRulesSource();
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~PICSRulesSource();
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HRESULT AddItem(PICSRulesObjectID proid, LPVOID pData);
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HRESULT InitializeMyDefaults();
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char * GetToolName();
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};
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//*******************************************************************
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//*
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//* The PICSRulesServiceInfo class handles the "serviceinfo" token
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//* from a PICSRules stream, and its attributes (square brackets
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//* denote the primary attribute):
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//*
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//* The Ratfile attribute is either an entire machine readable .RAT
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//* file, or the URL where the .RAT file can be obtained.
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//*
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//* serviceinfo (
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//* [Name] URL
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//* shortname quoted
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//* BureauURL URL
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//* UseEmbedded Y|N
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//* Ratfile quoted
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//* BureauUnavailable PASS|FAIL
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//* *Extension* )
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//*
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//*******************************************************************
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class PICSRulesServiceInfo : public PICSRulesObjectBase
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{
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||
|
|
public:
|
||
|
|
PICSRulesQuotedURL m_prURLName,m_prURLBureauURL;
|
||
|
|
ETS m_etstrShortName,m_etstrRatfile;
|
||
|
|
PICSRulesYesNo m_prYesNoUseEmbedded;
|
||
|
|
PICSRulesPassFail m_prPassFailBureauUnavailable;
|
||
|
|
|
||
|
|
PICSRulesServiceInfo();
|
||
|
|
~PICSRulesServiceInfo();
|
||
|
|
|
||
|
|
HRESULT AddItem(PICSRulesObjectID proid, LPVOID pData);
|
||
|
|
HRESULT InitializeMyDefaults();
|
||
|
|
};
|
||
|
|
|
||
|
|
//*******************************************************************
|
||
|
|
//*
|
||
|
|
//* The PICSRulesOptExtension class handles the "optextension" token
|
||
|
|
//* from a PICSRules stream, and its attributes (square brackets
|
||
|
|
//* denote the primary attribute):
|
||
|
|
//*
|
||
|
|
//* optextension (
|
||
|
|
//* [extension-name] URL
|
||
|
|
//* shortname quoted
|
||
|
|
//* *Extension* )
|
||
|
|
//*
|
||
|
|
//*******************************************************************
|
||
|
|
class PICSRulesOptExtension : public PICSRulesObjectBase
|
||
|
|
{
|
||
|
|
public:
|
||
|
|
PICSRulesQuotedURL m_prURLExtensionName;
|
||
|
|
ETS m_etstrShortName;
|
||
|
|
|
||
|
|
PICSRulesOptExtension();
|
||
|
|
~PICSRulesOptExtension();
|
||
|
|
|
||
|
|
HRESULT AddItem(PICSRulesObjectID proid, LPVOID pData);
|
||
|
|
HRESULT InitializeMyDefaults();
|
||
|
|
};
|
||
|
|
|
||
|
|
//*******************************************************************
|
||
|
|
//*
|
||
|
|
//* The PICSRulesReqExtension class handles the "reqextension" token
|
||
|
|
//* from a PICSRules stream, and its attributes (square brackets
|
||
|
|
//* denote the primary attribute):
|
||
|
|
//*
|
||
|
|
//* reqextension (
|
||
|
|
//* [extension-name] URL
|
||
|
|
//* shortname quoted
|
||
|
|
//* *Extension* )
|
||
|
|
//*
|
||
|
|
//*******************************************************************
|
||
|
|
class PICSRulesReqExtension : public PICSRulesObjectBase
|
||
|
|
{
|
||
|
|
public:
|
||
|
|
PICSRulesQuotedURL m_prURLExtensionName;
|
||
|
|
ETS m_etstrShortName;
|
||
|
|
|
||
|
|
PICSRulesReqExtension();
|
||
|
|
~PICSRulesReqExtension();
|
||
|
|
|
||
|
|
HRESULT AddItem(PICSRulesObjectID proid, LPVOID pData);
|
||
|
|
HRESULT InitializeMyDefaults();
|
||
|
|
};
|
||
|
|
|
||
|
|
//*******************************************************************
|
||
|
|
//*
|
||
|
|
//* The PICSRulesRatingSystem class encapsulates all of the
|
||
|
|
//* information from a give PICSRules source. Multiple
|
||
|
|
//* instantiations are created in the PicsRatingSystemInfo class,
|
||
|
|
//* created at startup and stored in gPRSI.
|
||
|
|
//*
|
||
|
|
//*******************************************************************
|
||
|
|
class PICSRulesRatingSystem : public PICSRulesObjectBase
|
||
|
|
{
|
||
|
|
public:
|
||
|
|
array<PICSRulesPolicy*> m_arrpPRPolicy;
|
||
|
|
array<PICSRulesServiceInfo*> m_arrpPRServiceInfo;
|
||
|
|
array<PICSRulesOptExtension*> m_arrpPROptExtension;
|
||
|
|
array<PICSRulesReqExtension*> m_arrpPRReqExtension;
|
||
|
|
PICSRulesName * m_pPRName;
|
||
|
|
PICSRulesSource * m_pPRSource;
|
||
|
|
ETS m_etstrFile;
|
||
|
|
ETN m_etnPRVerMajor,m_etnPRVerMinor;
|
||
|
|
DWORD m_dwFlags;
|
||
|
|
UINT m_nErrLine;
|
||
|
|
|
||
|
|
PICSRulesRatingSystem();
|
||
|
|
~PICSRulesRatingSystem();
|
||
|
|
HRESULT Parse(LPCSTR pszFile, LPSTR pStreamIn);
|
||
|
|
|
||
|
|
HRESULT AddItem(PICSRulesObjectID roid, LPVOID pData);
|
||
|
|
HRESULT InitializeMyDefaults();
|
||
|
|
void ReportError(HRESULT hres);
|
||
|
|
};
|
||
|
|
|
||
|
|
//*******************************************************************
|
||
|
|
//*
|
||
|
|
//* The PICSRulesFileParser class exists to provide a line number
|
||
|
|
//* shared by all the parsing routines. This line number is updated
|
||
|
|
//* as the parser walks through the stream, and is frozen as soon as
|
||
|
|
//* an error is found. This line number can later be reported to the
|
||
|
|
//* user to help localize errors.
|
||
|
|
//*
|
||
|
|
//*******************************************************************
|
||
|
|
class PICSRulesFileParser
|
||
|
|
{
|
||
|
|
public:
|
||
|
|
UINT m_nLine;
|
||
|
|
|
||
|
|
PICSRulesFileParser() { m_nLine = 1; }
|
||
|
|
|
||
|
|
LPSTR EatQuotedString(LPSTR pIn,BOOL fQuote=PR_QUOTE_DOUBLE);
|
||
|
|
HRESULT ParseToOpening(LPSTR *ppIn, PICSRulesAllowableOption *paoExpected,
|
||
|
|
PICSRulesAllowableOption **ppFound);
|
||
|
|
HRESULT ParseParenthesizedObject(
|
||
|
|
LPSTR *ppIn, //where we are in the text stream
|
||
|
|
PICSRulesAllowableOption aao[], //allowable things inside this object
|
||
|
|
PICSRulesObjectBase *pObject //object to set parameters into
|
||
|
|
);
|
||
|
|
char* FindNonWhite(char *pc);
|
||
|
|
};
|
||
|
|
|
||
|
|
#endif
|
||
|
|
|