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handle undefined identifiers at help prompt #8262

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Wilfred opened this issue Sep 7, 2014 · 5 comments
Closed

handle undefined identifiers at help prompt #8262

Wilfred opened this issue Sep 7, 2014 · 5 comments
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status:help wanted Indicates that a maintainer wants help on an issue or pull request stdlib:REPL Julia's REPL (Read Eval Print Loop)

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@Wilfred
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Wilfred commented Sep 7, 2014

At the moment, we're not very helpful if a user gets a function name wrong.

help?> i_dont_exist
ERROR: i_dont_exist not defined

We could either fall back to calling apropos() automatically, or at least suggest it in the error message. This would benefit from apropos searching function names, so foobar("my_function") would work, and perhaps even foobar("my_funct") too.
@pao pao added the stdlib:REPL Julia's REPL (Read Eval Print Loop) label Sep 7, 2014
@ivarne ivarne added the status:help wanted Indicates that a maintainer wants help on an issue or pull request label Sep 8, 2014
@nolta
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nolta commented Sep 12, 2014 

julia> apropos(i_dont_exist)
ERROR: i_dont_exist not defined

@ivarne
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ivarne commented Sep 15, 2014

@davidssmith submitted a PR in #8327

@ivarne ivarne mentioned this issue Sep 15, 2014
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@ivarne ivarne closed this as completed in d31073a Sep 16, 2014
ivarne added a commit that referenced this issue Sep 16, 2014
@ivarne
Merge pull request #8327 from davidssmith/help
6a7dacc 
fall back on apropos() if help() fails; fixes #8262
@ivarne ivarne reopened this Sep 16, 2014
@ivarne
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ivarne commented Sep 16, 2014

REPL help?> mode still doesn't accept queries that isn't defined. Keeping this issue open.

@JeffBezanson JeffBezanson changed the title If help can't find anything, fall back to apropos handle undefined identifiers at help prompt Sep 16, 2014
@davidssmith
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Why do we need a separate Base.@help macro? Can help?> not pass a sanitized input to the normal help()?

ivarne pushed a commit that referenced this issue Sep 19, 2014
@davidssmith @ivarne
fall back on apropos if help fails; partially fixes #8262
a6e6835 
Backport of d31073a
for #8327
@jakebolewski
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Closing, as the default help behavior seems reasonable now.

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status:help wanted Indicates that a maintainer wants help on an issue or pull request stdlib:REPL Julia's REPL (Read Eval Print Loop)
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@Wilfred @ivarne @pao @nolta @davidssmith @jakebolewski