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185 lines
7.5 KiB
185 lines
7.5 KiB
//
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// MODULE: APGTSHTIREAD.H
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//
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// PURPOSE: HTI template file reading classes
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//
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// COMPANY: Saltmine Creative, Inc. (206)-284-7511 [email protected]
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//
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// AUTHOR: Oleg Kalosha
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//
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// ORIGINAL DATE: 8-12-98
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//
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// NOTES:
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//
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// Version Date By Comments
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//--------------------------------------------------------------------
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// V3.0 08-04-98 OK
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//
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#ifndef __APGTSHTIREAD_H_
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#define __APGTSHTIREAD_H_
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#include "templateread.h"
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#include "HTMLFrag.h"
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// these are not really commands, just service symbols
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#define COMMAND_STARTSTR _T("<!GTS")
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#define COMMAND_ENDSTR _T(">")
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#define COMMAND_IFSTR _T("if")
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#define COMMAND_STARTVARSTR _T("$")
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// JSM V3.2 -- used to decode string argumentss
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#define COMMAND_DOUBLEQUOTE _T("\"")
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#define COMMAND_ESCAPECHAR _T("\\")
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// commands that have to be interpreted
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#define COMMAND_ELSESTR _T("else")
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#define COMMAND_ENDIFSTR _T("endif")
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#define COMMAND_FORANYSTR _T("forany")
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#define COMMAND_ENDFORSTR _T("endfor")
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// commands that presume putting substitution string on their place
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#define COMMAND_DISPLAYSTR _T("display")
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#define COMMAND_RESOURCESTR _T("resource")
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// command that brings general information, that can be processed
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// in classes inherited from CHTMLFragmentsTS
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#define COMMAND_INFORMATION _T("information")
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// command that makes CHTMLFragmentsTS store some value
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#define COMMAND_VALUE _T("value")
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// command that substitutes Network Property in the HTML:
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#define COMMAND_PROPERTY _T("property")
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//
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// V3.2 Additions.
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#define COMMAND_ELSEIFSTR _T("elseif")
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#define COMMAND_COOKIE _T("<!Cookie")
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#define DELIMITER_POSTFIX _T("!")
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#define DELIMITER_PREFIX _T("_")
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//
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// NO error handling here - whatever the result is, it will be accepted,
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// the program flow should go to the end. NO throw exception.
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//
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///////////////////////////////////////////////////////////////////////////////////////////
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// CAPGTSHTIReader
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// Term "Interpret" here is: unwind initial script with <!GTS forany $Something> or
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// <!GTS if $Something> to <!GTS forany $Something!24_SomethingElse!2...>
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// This interpreted script is to be ready for direct substitutions of <!GTS display ...>
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// and <!GTS resource ...>, which are only commands left in the interpreted script
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///////////////////////////////////////////////////////////////////////////////////////////
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class CAPGTSHTIReader : public CTemplateReader
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{
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protected: // we can use data in inherited class
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vector<CString> m_arrInterpreted; // (partly) interpreted template - some clauses
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// are interpreted, when fully parsed - ready
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// for simple template substitution.
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const CHTMLFragments* m_pFragments;
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public:
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CAPGTSHTIReader(CPhysicalFileReader * pPhysicalFileReader, LPCTSTR szDefaultContents = NULL);
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~CAPGTSHTIReader();
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protected:
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virtual void Parse(); // do nothing - no traditional parsing, we first have to interpret
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public:
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void CreatePage( const CHTMLFragments& fragments,
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CString& out,
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const map<CString,CString> & mapStrs,
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CString strHTTPcookies= _T("") );
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bool HasHistoryTable();
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// JSM V3.2 returns a vector containing all net props which appear
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// in the HTI file in lines like <!GTS property "fooprop">
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void ExtractNetProps(vector<CString> &arr_props);
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protected:
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// level below CreatePage(...)
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virtual void InitializeInterpreted(); // init string array with data read from HTI file
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virtual void Interpret(); // zoom this template in a simple template where all we need is string substitution
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virtual void ParseInterpreted(); // perform this substitution
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virtual void SetOutputToInterpreted(); // set standard template output (m_StreamOutput)
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// from interpreted m_arrInterpreted
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//
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// we can read output by CTemplateReader::GetOutput();
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//
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protected:
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// level below ...Interpret...(...)
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bool ExtractClause(vector<CString>& arr_text,
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long* pstart_index,
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vector<CString>& arr_clause);
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bool InterpretClause(vector<CString>& arr_clause);
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protected:
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// used by previous ExtractClause
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// start_index is supposed to be positioned to beginning of clause
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bool ExtractClause(vector<CString>& arr_text,
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long* pstart_index,
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vector<CString>& arr_clause,
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const CString& str_start_command,
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const CString& str_end_command);
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// used by InterpretClause
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bool InterpretForanyClause(vector<CString>& arr_clause);
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bool InterpretIfClause(vector<CString>& arr_clause);
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// lowest level - parsing and changing <!GTS &...> - strings
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// This function extracts command from line
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bool GetCommand(const CString& line, CString& command);
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// This command composes <!GTS operator $variable>
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bool ComposeCommand(const CString& oper, const CString& variable, CString& command);
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// This function extracts variable from line
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bool GetVariable(const CString& line, CString& variable);
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// This function parses variable like Recommendations!199_States!99 into array
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void ParseVariable(const CString& variable, FragmentIDVector& out);
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// This function composes variable from array
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void ComposeVariable(const FragmentIDVector& parsed, CString& variable);
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// This function substitutes <!GTS ....> in "line" with "str_substitution"
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bool SubstituteCommandBlockWith(const CString& str_substitution, CString& line);
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// This function composes command block <!GTS command $variable >
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void ComposeCommandBlock(const CString& command, const CString& variable, CString& command_block);
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// NOTION of prefix - postfix. Prefix - parent variable, delimited by "_" from our variable,
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// and postfix - number, delimited from our variable by "!"
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// This function forms variable like Recommendations!11 where postfix == 11
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void PostfixVariable(const long postfix, CString& variable);
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// This function forms variable like Recommendations!1_State where prefix == Recommendations!1
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void PrefixVariable(const CString& prefix, CString& variable);
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private:
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// VERY low level
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// This function reads command and variable from the <!GTS command $variable > block
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bool GetCommandVariableFromControlBlock(const CString& control_block, CString& command, CString& variable);
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// This function reads command block (<!GTS command $variable >) from line
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bool GetControlBlockFromLine(const CString& line, CString& control_block);
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// JSM V3.2
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// extracts a string argument from a part of the command block; called by GetCommandVariableFromControlBlock
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CString GetStringArg(const CString & strText);
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// Converts a double-quoted string w/ an `escape character' to a correct CString.
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CString GetEscapedText(const CString &strText);
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// utility function called by the above:
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CString RemoveEscapesFrom(const CString &strIn);
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#ifdef __DEBUG_CUSTOM
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public:
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bool FlushOutputStreamToFile(const CString& file_name);
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#endif
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private:
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// This function handles the substituting of "<!Cookie" clauses with the either
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// values from cookies or the default value.
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void SubstituteCookieValues( CString& strText );
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// This function searches the HTTP cookies for a given cookie name and attribute. If
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// found, this function returns a value of true and the located cookie value.
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bool LocateCookieValue( const CString& strCookieName,
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const CString& strCookieAttr,
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CString& strCookieValue );
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private:
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CString m_strHTTPcookies; // V3.2 Enhancement, contains cookies from HTTP header
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// which are used in the Online Troubleshooter.
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map<CString,CString> m_mapCookies;
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};
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#endif // __APGTSHTIREAD_H_
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