Module 1: Overview of TACL features | Productivity aids provided by TACL: HISTORY, FC, ?, !, help-facility Function key, custom prompts, file name templates, and macro files TACL features as a programming language
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| | Obtaining information about variables using either commands or built-in functions Using commands or built-in functions to create, initialize, modify, and eliminate variables Concept of a “frame” and how it relates to managing variables Variable stacks and their levels: what they are and how to create, reference, and eliminate them Syntax rules for writing TACL functions
Lab Learn and understand how to logon and use TACL function keys |
Module 3: Directories and segments | Creating a segment file containing a library function Using the existing segment file by attaching it to a directory Getting information on the segment file Syntax rules for writing TACL functions
Lab Learn to create and use a segment file |
Module 4: Editing variables | Performing variable file I/O Performing global editing of a variable Performing line editing of a variable Performing character editing of a variable Locating the position of a string in a variable Extracting lines and characters from a variable
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Module 5: Writing functions: macros | Syntax required to write macro functions TACL’s handling of arguments to macro functions TACL’s expansion of macro functions Writing macro functions
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Module 6: Writing functions: #IF statements | Write functions that use the TACL #IF | THEN | | ELSE | construct Lab Exercise (1 hour) Describe the syntax required to write functions in general and macro type functions in particular Describe the different forms of the “control” built-in #IF and contrast when to use one form or the other (#IF or #IF NOT) Write a macro type function that accepts one or more arguments and ensures that the arguments are correct by making use of the “control” built-in #IF
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Module 7: Writing functions: #LOOP statements | Write functions that use the TACL #LOOP | DO | | UNTIL | construct Write functions that use the TACL #LOOP | WHILE | | DO | construct Lab Exercise (1 hour) Describe the syntax required to write general functions, with particular focus on macro type functions Describe the two forms of the “control” built-in #LOOP and determine when to use #LOOP | DO | | UNTIL | or #LOOP | WHILE | | DO | Write a macro type function that outputs all of the volume names on the system
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Module 8: Writing functions: #CASE statements | |
Module 9: Writing functions—debugging | Using the TACL debugging facility provided by TACL to aid in getting functions to work Lab Exercise (2 hours) Start and stop the Debugger Set and clear breakpoints Display and modify the contents of a variable Single step through your function and resume execution of your function Describe the syntax for #IF, #LOOP, and #CASE constructs Write a function that employs the #CASE built-in
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Module 10: Writing functions—file I/O | |
Module 11: Writing functions—routines | Writing “Routine” type functions and use #ARGUMENT, #MORE, and #REST Lab Exercise (3 hours) Modify and write routine functions Describe the syntax and usage of #ARGUMENT and #MORE Describe additional capabilities that routines offer that macros do not Describe the use of the built-ins: #MYSYSTEM, #PROCESSORSTATUS, and #PROCESSORTYPE, #LOOP, and #CASE
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Module 12: Using structures | |
Module 13: Inline processing | Performing process I/O using the INLINE facility Controlling the display of the process output Logging the process output to a variable debugger Lab Exercise (30 minutes) Describe the syntax required to write INLINE functions in general Use the INLINE facility for interfacing with the PERUSE utility Practice coding techniques using the variable editing built-ins and review the usage of #INPUTV, #LOOP, and #IF Describe the use of #INLINEPREFIX, INLPREFIX, #INLINETO, and INLTO Write a macro-type function that purges jobs from the spooler and prompts the user for permission to purge each job
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Module 14: Writing functions—server files | How the server file facility provides for communication between a TACL function and a process it has activated Situations in which it is appropriate to use implicit server files Writing functions that use implicit server files Lab Exercise (45 minutes) Describe the syntax and usage of functions that employ implicit servers Describe the usage of the RUN-options: INV DYNAMIC PROMPT OUTV , and STATUS Describe the usage of the following built-ins: #APPEND, #APPENDV #EXTRACT, #EXTRACTV #WAIT #REQUESTER Describe the conditions under which to use implicit servers Write functions that make use of implicit servers
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Module 15: Define process | Define Process facility Using the Define Process variables to start, stop, and manage processes Specifying where complete information on the Define Process facility can be found
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Module 16: Writing functions—exception handling | Three types of exceptions that TACL allows a function to handle in its own way Using the built-in functions #ERRORTEXT, #EXCEPTION, #FILTER, #RAISE, #RESET, and #RETURN Structure and the organization of a function that contains “exception handling” code Writing functions that contain their own “exception handling” code
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| | Four types of DEFINE classes Their usage and comparing them to ASSIGNs Using the DEFINE command within TACL to create a DEFINE, delete a DEFINE, and alter a DEFINE
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