• Top
  • Documentation
  • Books
  • Boolean-reasoning
  • Projects
    • Apt
    • Zfc
    • Acre
    • Milawa
    • Smtlink
    • Abnf
    • Vwsim
    • Isar
    • Pfcs
    • Wp-gen
    • Dimacs-reader
    • Legacy-defrstobj
    • Proof-checker-array
    • Soft
    • C
    • Farray
    • Rp-rewriter
    • Instant-runoff-voting
    • Imp-language
    • Sidekick
    • Leftist-trees
    • Java
      • Atj
      • Aij
      • Language
        • Syntax
          • Grammar
          • Unicode-escapes
          • Unicode-input-char
          • Escape-sequence
            • Escape-sequence-fix
            • Escape-sequence-case
            • Escape-sequence-equiv
            • Escape-sequence-p
            • Escape-sequence-kind
            • Escape-sequence-octal
            • Escape-sequence-t
            • Escape-sequence-single-quote
            • Escape-sequence-r
            • Escape-sequence-n
            • Escape-sequence-f
            • Escape-sequence-double-quote
            • Escape-sequence-backslash
            • Escape-sequence-b
          • Identifiers
          • Primitive-types
          • Reference-types
          • Keywords
          • Unicode-characters
          • Integer-literals
          • String-literals
          • Octal-digits
          • Hexadecimal-digits
          • Decimal-digits
          • Binary-digits
          • Character-literals
          • Null-literal
          • Floating-point-literals
          • Boolean-literals
          • Package-names
          • Literals
        • Semantics
    • Taspi
    • Riscv
    • Bitcoin
    • Des
    • Ethereum
    • X86isa
    • Sha-2
    • Yul
    • Zcash
    • Proof-checker-itp13
    • Regex
    • ACL2-programming-language
    • Json
    • Jfkr
    • Equational
    • Cryptography
    • Poseidon
    • Where-do-i-place-my-book
    • Axe
    • Aleo
    • Bigmems
    • Builtins
    • Execloader
    • Solidity
    • Paco
    • Concurrent-programs
    • Bls12-377-curves
  • Debugging
  • Std
  • Community
  • Proof-automation
  • Macro-libraries
  • ACL2
  • Interfacing-tools
  • Hardware-verification
  • Software-verification
  • Math
  • Testing-utilities

• Syntax

Escape-sequence

Fixtype of escape sequences [JLS14:3.10.6].

This is a tagged union type, introduced by fty::deftagsum.

Member Tags → Types

:b → escape-sequence-b

:t → escape-sequence-t

:n → escape-sequence-n

:f → escape-sequence-f

:r → escape-sequence-r

:double-quote → escape-sequence-double-quote

:single-quote → escape-sequence-single-quote

:backslash → escape-sequence-backslash

:octal → escape-sequence-octal

These are the escape sequences for character and string literals, not the Unicode escapes formalized here.

There are eight escape sequences each of which consist of a backslash followed by another character (e.g. \b), and 256 octal escape sequences. Here we formalize them at a slightly more abstract level than their concrete syntactic representation in the grammar. Our fixtype should be isomorphic to the set of grammar strings or trees; but this remains to be formally proved.

Subtopics

Escape-sequence-fix

Fixing function for escape-sequence structures.

Escape-sequence-case

Case macro for the different kinds of escape-sequence structures.

Escape-sequence-equiv

Basic equivalence relation for escape-sequence structures.

Escape-sequence-p

Recognizer for escape-sequence structures.

Escape-sequence-kind

Get the kind (tag) of a escape-sequence structure.

Escape-sequence-octal

Escape-sequence-t

Escape-sequence-single-quote

Escape-sequence-r

Escape-sequence-n

Escape-sequence-f

Escape-sequence-double-quote

Escape-sequence-backslash

Escape-sequence-b