bugGNU Octave - Bugs: bug #56121, teach lexer to recognize...


bug #56121: teach lexer to recognize "SPDX-License-Identifier" tag as a copyright comment

Submitted by:  Mike Miller <mtmiller>
Submitted on:  Thu 11 Apr 2019 06:21:17 PM UTC  
Category:  Interpreter Severity:  1 - Wish
Priority:  5 - Normal Item Group:  Feature Request
Status:  Patch Submitted Assigned to:  Mike Miller <mtmiller>
Originator Name:  Open/Closed:  Open
Release:  dev Operating System:  Any

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Thu 11 Apr 2019 10:24:31 PM UTC, comment #2:

I'm OK with accepting additional ways to recognize a comment block as a copyright notice instead of help text. Maybe we should use a regexp and allow it to be configurable in some way?

John W. Eaton <jwe>
Project Administrator
Thu 11 Apr 2019 06:23:43 PM UTC, comment #1:

Patch attached.

(file #46750)

Mike Miller <mtmiller>
Project AdministratorIn charge of this item.
Thu 11 Apr 2019 06:21:17 PM UTC, original submission:

The "SPDX-License-Identifier" tag is an attempt to create a machine-readable standardized way to mark the license of a source file. Typically this identifier is the first comment line in a source file, script, or data file.


Octave's lexer currently looks for the words "Author" or "Copyright" as the first word in a comment block. I would like to add support for "SPDX-License-Identifier" to serve the same purpose. I will submit an already-tested patch once I have a bug number. This patch will allow a function file that looks like this to work correctly:

Without this patch, the 'help' function does not find the doc string correctly, the user is forced to reorder the first two lines to put the "Copyright" line first.

Mike Miller <mtmiller>
Project AdministratorIn charge of this item.


(Note: upload size limit is set to 16384 kB, after insertion of the required escape characters.)

Attach Files:

Attached Files
file #46750:  spdx.patch added by mtmiller (920B - text/x-patch)


Depends on the following items: None found

Items that depend on this one: None found


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    Follow 3 latest changes.

    Date Changed by Updated Field Previous Value => Replaced by
    2019-04-11 mtmiller Attached File- => Added spdx.patch, #46750
        StatusNone => Patch Submitted
    2019-04-11 mtmiller Carbon-CopyRemoved 80942 => -

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