I don't know what has to happen to make it show up in Package Manager.
Bill would. Maybe some rebuild is required.
Perhaps you can check it out using SVN?
Henry Rich
On 8/12/2012 6:12 PM, Ian Clark wrote:
Sounds good, Henry. I certainly have a use for that.
But I can't see it in pacman for either JGTK or j602.
On Sun, Aug 12, 2012 at 9:10 PM, Henry Rich <[email protected]> wrote:
I have an alpha-test version of a syntax checker for J scripts. It is in
the addons, as
general/misc/lint.ijs
The goal is to catch errors before execution. It can find only gross
errors, but those are the kind my programming students make, so this is
progress IMO. What it looks for is:
explicit definitions lacking trailing ), and ) with no definition
undefined names, including names not defined in all paths
verbs used with invalid valences
non-noun results at the end of condition blocks and verbs
syntax errors
sentences with no effect on execution (eg verb verb)
The idea is that lint can be used in place of load. It loads the script,
then checks it for errors by executing each line of each explicit definition
in 'safe mode' where side effects are prevented.
example:
lint '~addons/general/misc/lint.ijs'
The result of the verb is a table of (line number);(error message).
If there are errors, it brings up a grid showing the program and error
messages.
I would test this a lot more before releasing it, but school starts tomorrow
& I'm not going to have much more time to put on it. I think it's better
than nothing - not freshman-proof, but I'll fix that as the freshmen tear
into it. Meanwhile I would appreciate suggestions and bug reports.
(My thanks to Dan King who suggested this project at the J Conference in
response to my bellyaching about J's error-detection deficiencies)
Henry Rich
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