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[Octave-bug-tracker] [bug #55890] "help class.method" fails if method ov

From: Colin Macdonald
Subject: [Octave-bug-tracker] [bug #55890] "help class.method" fails if method overloads builtin
Date: Tue, 12 Mar 2019 03:42:52 -0400 (EDT)
User-agent: Mozilla/5.0 (X11; Fedora; Linux x86_64; rv:65.0) Gecko/20100101 Firefox/65.0


                 Summary: "help class.method" fails if method overloads
                 Project: GNU Octave
            Submitted by: cbm
            Submitted on: Tue 12 Mar 2019 07:42:50 AM UTC
                Category: Interpreter
                Severity: 3 - Normal
                Priority: 5 - Normal
              Item Group: Matlab Compatibility
                  Status: None
             Assigned to: None
         Originator Name: 
        Originator Email: 
             Open/Closed: Open
         Discussion Lock: Any
                 Release: dev
        Operating System: Any



These examples come from the Symbolic package.

"help sym.assume" works fine.  But "help sym.char" does not.  Nor does "help
sym.erf".  I guess the difference is there is no builtin "assume" but there
are "char" and "erf" functions.

> help sym.erf
error: help: 'sym.erf' not found


  * "help @class/method" always works---this report is about the dot

  * possibly related: if the class name is itself a builtin, the dot notation
also fails, e.g., "help logical.isAlways".

  * Tested on 4.2 and 5.1.1.

  * 6.0.0 seems to have broken/removed "help @sym/assume" but this bug is
present there too.


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