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ScriptCommand Class Reference This class holds the bound keyword set for a given Bayonne style script interpreter. Bayonne script keyword binding tables and compiler constants. More... #include <script.h> Inheritance diagram for ScriptCommand: List of all members. Protected Methods virtual unsigned  getTrapId (const char *trap)   Get the trap id number associated with a trap name. More... virtual unsigned long  getTrapDefault (void)   Get the mask bits for the default script. More... virtual unsigned long  getTrapHandler (scriptname_t *scr)   Get the mask bits for a trap "handler". More... virtual unsigned long  getTrapMask (unsigned id)   Get a trap mask for a given identifer. More... virtual unsigned long  getTrapModifier (const char *trapname)   A helper method for the compiler. More... virtual unsigned long  getTrapMask (const char *trapname)   A helper method for the compiler used specifically for "^" trap subsection requests. More... char*  chkIgnore (scriptline_t *line, ScriptImage *img)   Default compiler syntax to accept any syntax. char*  chkHasModify (scriptline_t *line, ScriptImage *img)   A check used by "inc" and "dec". More... char*  chkHasVars (scriptline_t *line, ScriptImage *img)   Script compiler syntax check for certain variable using statements such as "clear". More... char*  chkHasList (scriptline_t *line, ScriptImage *img)   Script compiler syntax check for assignment statements such as "set", "for", etc. More... char*  chkNoArgs (scriptline_t *line, ScriptImage *img)   Script compiler syntax check for commands that require no arguments to be present. More... char*  chkHasArgs (scriptline_t *line, ScriptImage *img)   Script compiler syntax check for commands that require one or more arguments to be present. More... void  Load (SCRKEYWORDS *keywords)   Load a set of keywords into the system keyword table. More... int  Trap (const char *name)   Add a trap handler symbolic identity to the keyword table. More... int  getCount (void)   Get count of active traps. More... virtual char*  Check (scriptcheck_t check, scriptline_t *line, ScriptImage *img)   Perform compile time check of a specified symbol. More...   ScriptCommand (const char *cfgfile)   Load a keydata entry for compile-time constants and bind the default ScriptInterp base class methods. More... Friends class   ScriptImage class   ScriptInterp Detailed Description This class holds the bound keyword set for a given Bayonne style script interpreter. Bayonne script keyword binding tables and compiler constants. Application specific dialects are created by deriving a application specific version of ScriptCommand which then binds application specific keywords and associated methods in an application derived ScriptInterp which are typecast to (scriptmethod_t). Author(s): David Sugar <dyfet@ostel.com> Constructor & Destructor Documentation ScriptCommand::ScriptCommand ( const char * cfgfile ) [protected]   Load a keydata entry for compile-time constants and bind the default ScriptInterp base class methods. This class is never used alone, so no public constructor is provided. Parameters: keydata   entry for constants. Member Function Documentation char * ScriptCommand::Check ( scriptcheck_t check, scriptline_t * line, ScriptImage * img ) [inline, protected, virtual]   Perform compile time check of a specified symbol. Returns: syntax error message string. Parameters: line   pointer. void ScriptCommand::Load ( SCRKEYWORDS * keywords ) [protected]   Load a set of keywords into the system keyword table. This provides a convenient method of initializing and adding to the keyword indexes. Parameters: keyword   entries to load. int ScriptCommand::Trap ( const char * name ) [protected]   Add a trap handler symbolic identity to the keyword table. These are used to handle signal mask coercion and event branch points in the compiler. Parameters: requested   trap name. Returns: assigned id number for the trap. char * ScriptCommand::chkHasArgs ( scriptline_t * line, ScriptImage * img ) [protected]   Script compiler syntax check for commands that require one or more arguments to be present. Returns: syntax error message string or NULL. Parameters: line   statement. char * ScriptCommand::chkHasList ( scriptline_t * line, ScriptImage * img ) [protected]   Script compiler syntax check for assignment statements such as "set", "for", etc. Returns: syntax error message string or NULL. Parameters: line   statement. char * ScriptCommand::chkHasModify ( scriptline_t * line, ScriptImage * img ) [protected]   A check used by "inc" and "dec". Returns: synxtax error message string or NULL. Parameters: line   statement. char * ScriptCommand::chkHasVars ( scriptline_t * line, ScriptImage * img ) [protected]   Script compiler syntax check for certain variable using statements such as "clear". Assumes list of valid variable arguments. char * ScriptCommand::chkIgnore ( scriptline_t * line, ScriptImage * img ) [protected]   Default compiler syntax to accept any syntax. char * ScriptCommand::chkNoArgs ( scriptline_t * line, ScriptImage * img ) [protected]   Script compiler syntax check for commands that require no arguments to be present. Returns: syntax error message string or NULL. Parameters: line   statement. int ScriptCommand::getCount ( void ) [inline, protected]   Get count of active traps. Returns: count of active trap identifiers. unsigned long ScriptCommand::getTrapDefault ( void ) [inline, protected, virtual]   Get the mask bits for the default script. Returns: trap mask to use. unsigned long ScriptCommand::getTrapHandler ( scriptname_t * scr ) [inline, protected, virtual]   Get the mask bits for a trap "handler". Returns: trap mask to use. unsigned ScriptCommand::getTrapId ( const char * trap ) [protected, virtual]   Get the trap id number associated with a trap name. Returns: trap id number, 0 (exit) if invalid. Parameters: name   of trap identifier. unsigned long ScriptCommand::getTrapMask ( const char * trapname ) [protected, virtual]   A helper method for the compiler used specifically for "^" trap subsection requests. These will occasionally carry different attribute settings. Parameters: name   of trap identifier. Returns: bit shifted mask or 0 if invalid. unsigned long ScriptCommand::getTrapMask ( unsigned id ) [protected, virtual]   Get a trap mask for a given identifer. This is a virtual since some derived handlers may manipulate mask bits. Returns: signal mask. Parameters: identifier.   unsigned long ScriptCommand::getTrapModifier ( const char * trapname ) [inline, protected, virtual]   A helper method for the compiler. Converts a named trap into it's bit shifted mask. By making it a virtual, derived dialects can add "aliases" to default trap names. Parameters: name   of trap identifier. Returns: bit shifted mask or 0 if invalid. Friends And Related Function Documentation class ScriptImage [friend] class ScriptInterp [friend] The documentation for this class was generated from the following file: script.h