[m-rev.] for review: allow windows files to be compiled on unix

[Julien Fischer]

On Wed, 7 Sep 2005, Ian MacLarty wrote:

> For review by anyone.
>
> Estimated hours taken: 1
> Branches: main and 0.12
>
> Allow Mercury programs written with a Windows application (like edit)
> to be compiled on a unix system.
> Previously Mercury gave "illegal character" errors.
>
> library/lexer.m:
> 	Replace checks for space, tab or newline characters with a call
> 	to char.is_whitespace.  char.is_whitespace also checks for
> 	carriage returns and linefeeds.
>
> 	Allow a carriage return character to appear before a newline
> 	when checking for `\' at the end of a line.
>
> tests/hard_coded/Mmakefile:
> tests/hard_coded/dos.exp:
> tests/hard_coded/dos.m:
> 	Test that a Windows format source file compiles.
>
That looks fine.

Julien.
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