* camlp4 stream parser and reporting error location
@ 2009-03-07 11:23 Joel Reymont
0 siblings, 0 replies; only message in thread
From: Joel Reymont @ 2009-03-07 11:23 UTC (permalink / raw)
To: O'Caml Mailing List
Assuming a simple Camlp4 parser that uses a ocamllex lexer wrapped in
a stream,
let rec parse_primary = parser
| [< 'INT n >] -> Int n
| [< 'FLOAT n >] -> Float n
| [< 'STRING n >] -> Str n
| [< 'TRUE >] -> Bool true
| [< 'FALSE >] -> Bool false
| [< >] -> raise (Stream.Error "unknown token when expecting an
expression.")
How do I report the error location?
Do I need to pass loc in with every token?
Then what happens in the error case where there's no token available?
Thanks, Joel
---
http://tinyco.de
Mac, C++, OCaml
^ permalink raw reply [flat|nested] only message in thread
only message in thread, other threads:[~2009-03-07 11:23 UTC | newest]
Thread overview: (only message) (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2009-03-07 11:23 camlp4 stream parser and reporting error location Joel Reymont
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox