Questions tagged [sedlex]
5 questions
2
votes
1 answer
Type Sedlexing.lexbuf is not compatible with type Lexing.lexbuf
I would like to add incremental API and error handling of menhir to my project by sedlex+menhir; I'm trying to adopt attempt2 and fail of this sample to my code. Here is the attempt2 of the sample:
let attempt2 filename text =
(* Allocate and…
SoftTimur
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1
vote
1 answer
Any character other than
I have defined a token for ocamllex let non_line_termination_character = [^ '\x0D' '\x0A'], which represents any character other than '\x0D' and '\x0A'.
Now, I would like to translate it to sedlex.
Does anyone know how to translate it correctly?…
SoftTimur
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0
votes
0 answers
OCaml lexing and parsing with whitespace sensitivity
im building a parser with Sedlex and Menhir, where i have a function definition as:
(* Lexer *)
let non_ascii = [%sedlex.regexp? '\160' .. '\255'];
let escape = [%sedlex.regexp?
unicode | ('\\', Compl('\r' | '\n' | '\012' | hex_digit))
];
let…
udduu
- 69
- 4
0
votes
2 answers
Characters and digits of Chapter four of the Unicode Standard
In a language specification, there is
name-start-character=
'_' | '\' | ? any code points which are characters as defined by the Unicode character properties, chapter four of the Unicode Standard ?;
Could anyone tell me how to correctly represent…
SoftTimur
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0
votes
2 answers
Identify what slows down the compilation of a lexer
I have a lexer and parser, built with sedlex and menhir in OCaml, to parse spreadsheet formulas.
The following part of the lexer defines regular expressions for the path+workbook+worksheet part before a reference. For instance,…
SoftTimur
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