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Compaq DECTPU Manual

Compaq DECTPU Manual (152 pages)

Guide to the DEC Text Processing Utility

Brand: Compaq | Category: Software | Size: 0.43 MB

Table of Contents

Table of Contents
3
Intended Audience
9
Preface

9
- Related Documents
  9
1 Overview of the DEC Text Processing Utility

13
- Description of DECTPU
  13
- DECTPU Features
  13
- DECTPU and User Applications
  14
- DECTPU Environments
  14
- Description of Decwindows DECTPU
  14
- DECTPU as a Base for EVE
  14
- DECTPU as a Base for User-Written Interfaces
  17
  - Data Types
    18
  - Language Declarations
    18
  - Language Statements
    18
  - Built-In Procedures
    18
- Sample User-Written Procedure
  19
2 Getting Started with DECTPU

21
- Invoking DECTPU on Openvms Systems
  21
- Default File Speciﬁcations
  22
- Startup Files
  22
- Default File Speciﬁcations on Openvms Systems
  22
  - Invoking DECTPU from a DCL Command Procedure
    23
  - Setting up a Special Editing Environment
    23
- DCL Command Procedure FILENAME.COM
  24
- DCL Command Procedure FORTRAN_TS.COM
  24
  - Creating a Noninteractive Application
    24
- DCL Command Procedure INVISIBLE_TPU.COM
  25
- DECTPU Command File GSR.TPU
  25
  - Invoking DECTPU from a Batch Job
    26
  - Using Journal Files
    26
  - Keystroke Journaling
    26
- Journaling Behavior Established by EVE
  26
  - Keystroke Journaling
    27
  - Buffer-Change Journaling
    27
  - Buffer-Change Journal File-Naming Algorithm
    28
  - Avoiding Errors Related to Virtual Address Space
    28
  - Using Openvms EDIT/TPU Command Qualiﬁers
    29
  - Character_Set
    29
  - Command
    30
  - Character Set Values You Can Set with /CHARACTER_SET
    30
  - Create
    31
  - Debug
    32
  - Display
    32
  - Initialization
    33
  - Interface
    34
  - Journal
    34
  - Modify
    35
  - Output
    36
  - Read_Only
    37
  - Recover
    38
  - Section
    39
  - Start_Position
    40
3 DEC Text Processing Utility Data Types

41
- Array Data Type
  42
- Buffer Data Type
  43
- Integer Data Type
  44
- Keyword Data Type
  45
- Keywords Used for Key Names
  46
  - Learn Data Type
    47
  - Marker Data Type
    48
  - Pattern Data Type
    50
- Suppressing the Addition of Padding Blanks
  50
  - Using Pattern Built-In Procedures and Keywords
    52
  - Using Keywords to Build Patterns
    52
  - Using Pattern Operators
    53
    
    Pattern Concatenation Operator)
    53
    
    (Pattern Linking Operator)
    53
    
    Pattern Alternation Operator)
    54
    
    (Partial Pattern Assignment Operator)
    54
    
    Relational Operators
    55
  - Compiling and Executing Patterns
    56
  - Searching for a Pattern
    56
  - Anchoring a Pattern
    57
  - Process Data Type
    58
  - Program Data Type
    58
  - Range Data Type
    59
  - String Data Type
    60
  - Unspeciﬁed Data Type
    61
- Effects of Two String-Reduction Operations
  61
  - Widget Data Type
    62
  - Window Data Type
    62
  - Deﬁning Window Dimensions
    63
  - Creating Windows
    63
  - Displaying Window Values
    64
  - Mapping Windows
    64
  - Removing Windows
    65
  - Using the Screen Manager
    65
  - Getting Information on Windows
    65
  - Terminals that Do Not Support Windows
    66
4 Lexical Elements of the DEC Text Processing Utility Language

67
- Overview
  67
- Case Sensitivity of Characters
  67
- Character Sets
  68
- DEC Multinational Character Set (DEC_MCS)
  68
- Categories of ASCII Character Set Characters
  68
- Categories of DEC Multinational Character Set Characters
  68
- Categories for ISO Latin1 Characters
  69
  - DECTPU Symbols
    70
  - Identiﬁers
    71
  - Variables
    71
- Global and Local Variable Declarations
  71
  - Constants
    72
- Global and Local Constant Declarations
  72
  - Operators
    73
- DECTPU Operators
  73
  - Expressions
    74
- Operator Precedence
  74
  - Arithmetic Expressions
    76
  - Relational Expressions
    76
  - Pattern Expressions
    77
  - Boolean Expressions
    77
- Procedure that Uses Relational Operators on Markers
  77
  - Reserved Words
    78
  - Keywords
    78
  - Built-In Procedure Names
    78
  - Predeﬁned Constants
    78
  - Declarations and Statements
    79
    
    Module Declaration
    80
    
    Procedure Declaration
    81
    
    Procedure Names
    81
    
    Procedure Parameters
    81
- Simple Procedure with Parameters
  82
- Complex Procedure with Optional Parameters
  83
  - Procedures that Return a Result
    84
  - Recursive Procedures
    84
- Procedure that Returns a Result
  84
- Procedure Within Another Procedure
  84
  - Local Variables
    85
  - Constants
    85
    
    ON_ERROR Statements
    85
- Recursive Procedure
  85
  - Assignment Statement
    86
  - Repetitive Statement
    86
  - Conditional Statement
    86
  - Case Statement
    87
- Procedure that Uses the CASE Statement
  88
  - Error Handling
    89
  - Procedural Error Handlers
    90
- Procedure that Uses the ON_ERROR Statement
  90
  - Case-Style Error Handlers
    91
- Procedure with a Case-Style Error Handler
  92
  - Ctrl/C Handling
    94
  - RETURN Statement
    94
- Procedure that Returns a Value
  94
  - ABORT Statement
    95
- Procedure that Returns a Status
  95
- Using RETURN in an ON_ERROR Section
  95
  - Miscellaneous Declarations
    96
  - Equivalence
    96
  - Local
    96
  - Constant
    96
  - Variable
    96
- Simple Error Handler
  96
5 DEC Text Processing Utility Program Development

101

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