VDM-10 Language Manual

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$Course Material\Efficiently Coding Communication Protocols in C++ ...$

VDM-10 Language Manual initial letter: if codepoint < U+0100 then Any character in categories Ll, Lm, Lo, Lt, Lu or U+0024 (a dollar sign) else Any character except categories Cc, Zl, Zp, Zs, Cs, Cn, Nd, Pc following letter: if codepoint < U+0100 then Any character in categories Ll, Lm, Lo, Lt, Lu, Nd or U+0024 (a dollar sign) or U+005F (underscore) or U+0027 (apostrophe) else Any character except categories Cc, Zl, Zp, Zs, Cs, Cn digit: 0 1 2 3 4 5 6 7 8 9 hexadecimal digit: 0 1 2 3 4 5 6 7 8 9 A B C D E F a b c d e f octal digit: 0 1 2 3 4 5 6 7 Table B.1: Character set 200
Appendix B. Lexical Specification B.2 Symbols The following kinds of symbols exist: keywords, delimiters, symbolic literals, and comments. The transformation from characters to symbols is given by the following rules; these use the same notation as the syntax definition but differ in meaning in that no separators may appear between adjacent terminals. Where ambiguity is possible otherwise, two consecutive symbols must be separated by a separator. keyword = ‘#act’ | ‘#active’ | ‘#fin’ | ‘#req’ | ‘#waiting’ | ‘abs’ | ‘all’ | ‘always’ | ‘and’ | ‘as’ | ‘async’ | ‘atomic’ | ‘be’ | ‘bool’ | ‘by’ | ‘card’ | ‘cases’ | ‘char’ | ‘class’ | ‘comp’ | ‘compose’ | ‘conc’ | ‘cycles’ | ‘dcl’ | ‘def’ | ‘definitions’ | ‘dinter’ | ‘div’ | ‘dlmodule’ | ‘do’ | ‘dom’ | ‘dunion’ | ‘duration’ | ‘elems’ | ‘else’ | ‘elseif’ | ‘end’ | ‘error’ | ‘errs’ | ‘exists’ | ‘exists1’ | ‘exit’ | ‘exports’ | ‘ext’ | ‘false’ | ‘floor’ | ‘for’ | ‘forall’ | ‘from’ | ‘functions’ | ‘hd’ | ‘if’ | ‘in’ | ‘inds’ | ‘inmap’ | ‘instance’ | ‘int’ | ‘inter’ | ‘imports’ | ‘init’ | ‘inv’ | ‘inverse’ | ‘iota’ | ‘is’ | ‘isofbaseclass’ | ‘isofclass’ | ‘lambda’ | ‘len’ | ‘let’ | ‘map’ | ‘measure’ | ‘merge’ | ‘mod’ | ‘module’ | ‘mu’ | ‘munion’ | ‘mutex’ | ‘nat’ | ‘nat1’ | ‘new’ | ‘nil’ | ‘not’ | ‘of’ | ‘operations’ | ‘or’ | ‘others’ | ‘per’ | ‘periodic’ | ‘post’ | ‘power’ | ‘pre’ | ‘private’ | ‘protected’ | ‘psubset’ | ‘public’ | ‘rat’ | ‘rd’ | ‘real’ | ‘rem’ | ‘renamed’ | ‘responsibility’ | ‘return’ | ‘reverse’ | ‘rng’ | ‘samebaseclass’ | ‘sameclass’ | ‘self’ | ‘seq’ | ‘seq1’ | ‘set’ | ‘skip’ | ‘specified’ | ‘st’ | ‘start’ | ‘startlist’ | ‘state’ | ‘struct’ | ‘subclass’ | ‘subset’ | ‘sync’ | ‘system’ | ‘then’ | ‘thread’ | ‘threadid’ | ‘time’ | ‘tixe’ | ‘tl’ | ‘to’ | ‘token’ | ‘traces’ | ‘trap’ | ‘true’ | ‘types’ | ‘undefined’ | ‘union’ | ‘uselib’ | ‘values’ | ‘variables’ | ‘while’ | ‘with’ | ‘wr’ | ‘yet’ | ‘RESULT’ ; identifier = initial letter, { following letter } ; Note that in VDM-RT the CPU and BUS classes are reserved and cannot be redefined by the user. These two predefined classes contain the functionality described in Section 14.1 above. All identifiers beginning with one of the reserved prefixes are reserved: init , inv , is , mk , post and pre . type variable identifier = ‘@’, identifier ; 201
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Overture - Open-source Tools for Fo
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Contents 1 Introduction 1 1.1 The V
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CONTENTS 13 Statements 97 13.1 Let
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CONTENTS A.7.19 The Undefined Expre
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Chapter 1 Introduction The Vienna D
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Chapter 2 Concrete Syntax Notation
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Chapter 3 Data Type Definitions As
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Chapter 3. Data Type Definitions We
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Chapter 3. Data Type Definitions Op
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Chapter 3. Data Type Definitions (a
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Chapter 3. Data Type Definitions
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Chapter 3. Data Type Definitions m1
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Chapter 3. Data Type Definitions Sy
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Chapter 3. Data Type Definitions Th
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Chapter 3. Data Type Definitions to
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Chapter 4 Algorithm Definitions In
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Chapter 5 Function Definitions In t
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Chapter 5. Function Definitions Not
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Chapter 5. Function Definitions Thi
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Chapter 6 Expressions In this subse
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Chapter 6. Expressions ✡✝ mk_Sc
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Chapter 6. Expressions Examples: Th
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Chapter 6. Expressions where e1 is
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Chapter 6. Expressions all expressi
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Chapter 6. Expressions where bd is
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Chapter 6. Expressions 6.8 Sequence
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Chapter 6. Expressions where all th
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Chapter 6. Expressions mu operator.
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Chapter 6. Expressions new expressi
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Chapter 6. Expressions Examples: Us
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Chapter 6. Expressions which will r
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Chapter 6. Expressions Examples: As
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Chapter 6. Expressions • #active(
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Chapter 6. Expressions ✞ state si
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Chapter 6. Expressions Semantics: A
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Chapter 7 Patterns Syntax: pattern
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Chapter 7. Patterns In the followin
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Chapter 7. Patterns ✡✝ ✆ The
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Chapter 8 Bindings Syntax: bind = s
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Chapter 9 Value (Constant) Definiti
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Chapter 10 Instance Variables (VDM+
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Chapter 11 The State Definition (VD
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Chapter 11. The State Definition (V
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Chapter 12 Operation Definitions Op
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Chapter 12. Operation Definitions s
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Chapter 12. Operation Definitions p
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Chapter 12. Operation Definitions h
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Chapter 13 Statements In this secti
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Chapter 13. Statements ✡✝ def t
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Chapter 13. Statements block return
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Chapter 13. Statements Examples: Th
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Chapter 13. Statements elseif state
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Chapter 13. Statements ‘do’, st
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Chapter 13. Statements 13.7 The Whi
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Chapter 13. Statements ✡✝ (dcl
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Chapter 13. Statements ✞ ✡✝ R
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Chapter 13. Statements where expres
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Chapter 13. Statements result of th
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Chapter 13. Statements ✡✝ else
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Chapter 13. Statements ✞ bootSequ
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Chapter 13. Statements ✞ op1 : na
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Chapter 14 Top-level Specification
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Chapter 14. Top-level Specification
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Chapter 15 Synchronization Constrai
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Chapter 15. Synchronization Constra
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Chapter 16 Threads (VDM++ and VDM-R
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Chapter 16. Threads (VDM++ and VDM-
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Page 159 and 160: Chapter 17 Top-level Specification
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Page 169 and 170: Chapter 18 Trace Definitions In ord
Page 171 and 172: Chapter 18. Trace Definitions stack
Page 173 and 174: Chapter 19 Static Semantics VDM spe
Page 175 and 176: Chapter 20 Scope Conflicts (VDM++ a
Page 177 and 178: References [Ada LRM] [Bicarregui&94
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Page 181 and 182: Appendix A The Syntax of the VDM La
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Page 207: Appendix B Lexical Specification B.
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Page 213 and 214: Appendix C Operator Precedence The
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Page 219 and 220: Appendix D Differences between the
Page 221 and 222: Index abs, 9 and, 6 card, 14 comp f
Page 223 and 224: INDEX arithmetic minus, 185 arithme
Page 225 and 226: INDEX boolean type, 6 char, 11 func
Page 227 and 228: INDEX sequence enumeration, 53, 187
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