Support *" string escape sequence

[associate-1]

Difficulty: Easy — Small addition to existing escape sequence handling in the lexer.

Summary

Occam uses *" inside string literals to represent a literal double-quote character. Currently the lexer does not handle this escape sequence, causing parse failures.

Occam syntax

VAL []BYTE msg IS "He said *"hello*"":

Proposed Go mapping

var msg []byte = []byte("He said \"hello\"")

Affected files

• test_utils.occ (line 75)

Work required

1. Lexer: In string literal scanning, recognize *" as an escape sequence that produces a " character (rather than terminating the string)

This is a small addition to the existing occam escape sequence handling (*n, *c, *t, etc.).

Part of #43.