GitLab

Improve pretty printing of Bdds and add debug directive to interactively inspect the internal representation of types.

"\n" after the ;; token.

to use two lexers (depending on whether we are between square brackets
or not) is too brittle (it crudely tries to parse
 ``( [whitespace] 'a  [whitespace] )'' as a variable, to force the user
to write the variable beetween parenthesis. However this does not scale
to types with two arguments (says [ t ('a, 'b) ]).

We use a simpler heuristic (with look ahead)

(1) try to see if the regular expression

' (anything but ', \n)* '(anything but the first letter of an identifier)

can be found. If so, we put back the lexeme in the buffer and parse it as as
a string.

(2) if (1) failed, try to parse it as a variable

(3) if (3) failed, try to parse it again as a string. We are
guaranteed to fail here but it means we have a malformed string, so we
parse as a string to get a proper error message.

The only thing this does not cover are cases like
type t = [ 'abcd'Int ]
which was tokenized before as [, 'abcd', Int, ]
and is now tokenized as [, 'abcd, 'Int, ]
It does not seem to be a problem in practice though (since in the code
I have seen thus far, people were at least putting a space).
it is easy to emmit a warning in this case, suggesting the user to add
a whitespace to get the old behaviour back.

now we can write types as
type t( 'a) = <a>'a

and patterns can contain type instantiations
let f = fun (t('a) -> [ t('a)* ]) x -> [ x ];;
let id = fun (t(Int) -> [ t(Int)* ]) x -> [ x ];;

Note: parametric types must be written as "IDENT(" without space.

now as such:
	- ['a] is the regexp matching the type variable "a";
	- ['a'] is the regexp matching the string "a";
	- ['a' 'a] is the regexp matching the string "a" followed by the type
	variable "a";
	- ['a''a] is a syntax error (a string in single quotes in a regexp MUST
	be followed by a character that cannot be the beginning of a name for a
	type variable, a blank character will do).

Bug: At this point, when using CDuce at toplevel, one will have to press enter
twice when typing a regexp with type variables.

- add required files to build the documentation

Original author: afrisch
Date: 2007-06-12 12:59:44+00:00

Original author: afrisch
Date: 2006-10-03 09:39:58+00:00

Original author: afrisch
Date: 2006-04-27 14:27:54+00:00

Original author: afrisch
Date: 2006-04-24 17:00:39+00:00

Original author: afrisch
Date: 2006-04-24 16:47:52+00:00

Original author: afrisch
Date: 2006-04-21 15:53:56+00:00

Original author: afrisch
Date: 2006-03-22 12:22:49+00:00

Original author: afrisch
Date: 2006-03-17 13:27:38+00:00

[r2006-02-14 10:42:36 by afrisch] eval can now be called several times and use the toplevel environment

Original author: afrisch
Date: 2006-02-14 10:45:18+00:00

[r2005-11-21 13:24:34 by afrisch] Error message when using --mlstub without the built-in OCaml interface

Original author: afrisch
Date: 2005-11-21 13:24:34+00:00

Original author: afrisch
Date: 2005-10-30 14:23:04+00:00

Original author: afrisch
Date: 2005-08-11 09:30:43+00:00

Original author: afrisch
Date: 2005-07-30 09:27:30+00:00

Original author: afrisch
Date: 2005-07-29 10:11:37+00:00

Original author: afrisch
Date: 2005-07-15 13:51:37+00:00

Original author: afrisch
Date: 2005-07-12 15:37:27+00:00

Original author: afrisch
Date: 2005-07-07 15:32:44+00:00

Original author: afrisch
Date: 2005-07-07 13:57:18+00:00