Testsuite regular expressions.

Testsuite regular expressions.

[Andrew STUBBS]

I've just noticed that there seems to be a 'problem' with many of the 
testsuite regular expression patterns.

All through the testsuite, and particularly in help.exp, the tests 
contain \. (an escaped period) in the match pattern. This would appear 
to indicate that the pattern should match a period, not just any 
character, but, in fact, the escape is processed by the TCL string 
parser, and all the regular expression parser sees is the period. Other 
characters, such as brackets, are 'escaped' with two slashes.

This is probably not a serious issue, but I do wonder if it perhaps 
would be better to sort it out.

Andrew

Re: Testsuite regular expressions.

[Daniel Jacobowitz]

On Tue, Jul 25, 2006 at 01:09:02PM +0100, Andrew STUBBS wrote:
> This is probably not a serious issue, but I do wonder if it perhaps 
> would be better to sort it out.

If you'd like to... I agree, but I don't think it's important enough to
spend much time on.

-- 
Daniel Jacobowitz
CodeSourcery

Re: Testsuite regular expressions.

[Jim Blandy]

Daniel Jacobowitz <drow@false.org> writes:
> On Tue, Jul 25, 2006 at 01:09:02PM +0100, Andrew STUBBS wrote:
>> This is probably not a serious issue, but I do wonder if it perhaps 
>> would be better to sort it out.
>
> If you'd like to... I agree, but I don't think it's important enough to
> spend much time on.

One thing worth noting: backslash isn't special within {curly quotes}.

$ tclsh
% puts {foo\.bar}
foo\.bar
% puts "foo\.bar"
foo.bar
%

But I see that help.exp is using it in "double quotes", so yeah, it's
wrong.