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  • Character-sets

Exec-character-set

Execution character set.

The execution character set is analogous to the source character set except that it has a few additional basic characters [C17:5.2.1].

We formalize the execution characters analogously to the source characters, i.e. as a constrained predicate with an injection from the ASCII basic ones and an injection to numbers. These numbers are not the values of the execution characters, which will be formalized elsewhere; the significance of these number is limited to our ACL2 formalization. See source-character-set for details.

Subtopics

Exec-char-recognizer+fixer+mappings+fixtype
Constrained recognizer and fixer and mappings, and fixtype, for the execution character set.
Ascii-basic-exec-char
Fixtype for ascii-basic-exec-charp.
Ascii-basic-exec-charp
Recognize the ACL2 ASCII characters that correspond to the members of the basic execution character set in C.
Ascii-to-exec-char-number
Number of the basic execution character corresponding to an ASCII character.
Ascii-basic-exec-char-fix
Fixer for ascii-basic-exec-char.
Ext-exec-charp
Recognize the extended execution characters.
Basic-exec-charp
Recognize the basic execution characters.