Seminar Details

TACL Programming (U4199S)

ETC
U4199S
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Dauer: 5 Tage
Preis: € 3.360.- exkl.MwST
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Master the art of writing functions in the Tandem Advanced Command Language (TACL) program in this course. Through student projects and hands-on labs, you will gain valuable experience with TACL programming. After completing this course, you will be able to write macros and routines, perform file I/O, use structured data, and write server functions.

 
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Zielgruppe

Dieses Seminar richtet sich an:
  • System programmers
  • System and network managers
  • Application designers
  • Application programmers
  • System analysts
  • Data communications programmers and analysts

Vorkenntnisse

Für dieses Seminar werden folgende Kenntnisse empfohlen:
  • Concepts and Facilities course
  • Knowledge of at least one other programming language
  • At least six months of programming experience

Schwerpunkte

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 

TACL variables
  • 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 Exercise (20 minutes): Learn and understand how to logon and use TACL function keys 

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 Exercise (30 minutes): Learn to create and use a segment file 

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

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 

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 

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 

Writing functions: #CASE statements 
  • Writing functions that use the TACL #CASE construct 

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 

Writing functions—file I/O 
  • How TACL is able to do device independent I/O
  • Using #REQUESTER and #WAIT to perform either “waited” or “no-waited” I/O to files and devices

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

Using structures 
  • Using a STRUCT to access data  

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 

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 <var> DYNAMIC PROMPT <var>
  • OUTV <var>, and STATUS <var>
  • 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 

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 

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 

Using DEFINEs 
  • 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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TACL Programming

ETC Live

  • Virtual Training – aber live im Seminar
  • Keine Anfahrt ins Seminarzentrum notwendig
  • Seminarunterlagen, Teamwork, Labs 24/7
  • ETC>Live Support und Hotline
  • ETC-Services

 

€ 3.360.-
(€ 3.360.- p.P.)

Preis

  • Ihr ILT Seminar (Instructor Led Training)
  • Seminarunterlagen, Teamwork, Labs
  • Verpflegung vorort in einem der ETC Seminarzentren
  • Seminar-Services
€ 3.360.-
(€ 3.360.- p.P.)

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