Compaq AA-PWCBD-TE Manuel d'utilisateur Page 9
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Preface
This manual discusses the DEC Text Processing Utility (DECTPU).
Intended Audience
This manual is for experienced programmers who know at least one computer
language, as well as for new users of DECTPU. Some features of DECTPU, for
example, the callable interface and the built-in procedure FILE_PARSE, are
for system programmers who understand Compaq OpenVMS operating system
concepts. Relevant documents about the OpenVMS operating system are listed
under Related Documents.
Document Structure
This manual is organized as follows:
• Chapter 1 contains an overview of DECTPU.
• Chapter 2 describes how to invoke DECTPU.
• Chapter 3 provides detailed information on DECTPU data types.
• Chapter 4 discusses the lexical elements of DECTPU. These include the
character set, identifiers, variables, constants, and reserved words, such as
DECTPU language statements.
• Chapter 5 describes DECTPU program development.
• Appendix A contains sample procedures written in DECTPU.
• Appendix B describes terminals supported by DECTPU.
• Appendix C lists commands for debugging DECTPU.
Related Documents
For additional information about OpenVMS products and services, access the
following World Wide Web address:
http://www.openvms.compaq.com/
Reader’s Comments
Compaq welcomes your comments on this manual. Please send comments to
either of the following addresses:
Internet [email protected]
ix
- Guide to the DEC Text 1
- ProcessingUtility 1
- Contents 3
- A Sample DECTPU Procedures 7
- B DECTPU Terminal Support 7
- C DECTPU Debugger Commands 7
- Examples 7
- Intended Audience 9
- Document Structure 9
- Related Documents 9
- Reader’s Comments 9
- Conventions 10
- Monospace text 11
- 1.1 Description of DECTPU 13
- 1.1.3 DECTPU Environments 14
- 1.3 Description of EVE 16
- 1.4 DECTPU Language 17
- 1.4.5 User-Written Procedures 19
- 1.6 Learning Path for DECTPU 20
- Getting Started with DECTPU 21
- 2.1.2 Startup Files 22
- 2.4 Using Journal Files 26
- 2.4.1 Keystroke Journaling 27
- 2.6.1 /CHARACTER_SET 29
- 2.6.2 /COMMAND 30
- 2.6.3 /CREATE 31
- 2.6.4 /DEBUG 32
- 2.6.5 /DISPLAY 32
- 2.6.6 /INITIALIZATION 33
- 2.6.7 /INTERFACE 34
- 2.6.8 /JOURNAL 34
- 2.6.9 /MODIFY 35
- 2.6.10 /OUTPUT 36
- 2.6.11 /READ_ONLY 37
- 2.6.12 /RECOVER 38
- 2.6.13 /SECTION 39
- 2.6.14 /START_POSITION 40
- 3.1 Array Data Type 42
- 3.2 Buffer Data Type 43
- 3.3 Integer Data Type 44
- 3.4 Keyword Data Type 45
- 3.5 Learn Data Type 47
- 3.6 Marker Data Type 48
- 3.7 Pattern Data Type 50
- 3.7.3 Using Pattern Operators 53
- 3.7.5 Searching for a Pattern 56
- 3.7.6 Anchoring a Pattern 57
- 3.8 Process Data Type 58
- 3.9 Program Data Type 58
- 3.10 Range Data Type 59
- 3.11 String Data Type 60
- 3.12 Unspecified Data Type 61
- 3.13 Widget Data Type 62
- 3.14 Window Data Type 62
- 3.14.2 Creating Windows 63
- 3.14.4 Mapping Windows 64
- 3.14.5 Removing Windows 65
- Utility Language 67
- 4.3 Character Sets 68
- 4.3.3 General Character Sets 69
- 4.3.5 DECTPU Symbols 70
- 4.4 Identifiers 71
- 4.5 Variables 71
- 4.6 Constants 72
- 4.7 Operators 73
- 4.8 Expressions 74
- 4.8.1 Arithmetic Expressions 76
- 4.8.2 Relational Expressions 76
- 4.8.3 Pattern Expressions 77
- 4.8.4 Boolean Expressions 77
- 4.9 Reserved Words 78
- 4.10 Lexical Keywords 100
- Development 101
- 5.1 Creating DECTPU Programs 102
- 5.1.1 Simple Programs 102
- 5.1.2 Complex Programs 102
- 5.1.3 Program Syntax 103
- 5.2.1 Widget Support 104
- 5.2.2 Input Focus Support 105
- "AUXILIARY" 106
- 5.2.4 Using Callbacks 107
- 5.2.5 Using Closures 110
- 5.4 Compiling DECTPU Programs 114
- 5.5 Executing DECTPU Programs 115
- 5.5.1 Procedure Execution 116
- 5.5.2 Process Suspension 116
- 5.6.1 Section Files 117
- 5.6.2 Command Files 117
- 5.6.3 Initialization Files 118
- 5.6.5 Using Section Files 119
- 5.6.6 Using Command Files 124
- 5.7 Debugging DECTPU Programs 128
- 5.8 Handling Errors 130
- Sample DECTPU Procedures 131
- A.1 Line-Mode Editor 132
- DECTPU Terminal Support 139
- B.3 Using Terminal Wrap 141
- DECTPU Debugger Commands 143
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