Patches item #2947822, was opened at 2010-02-08 05:12
Message generated for change (Comment added) made by zmoelnig
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Category: puredata
Group: None
Status: Open
Resolution: Fixed
Priority: 5
Private: No
Submitted By: Matteo Sisti Sette (sistisette)
Assigned to: Miller Puckette (millerpuckette)
Summary: space character in gui labels causes disaster
Initial Comment:
Steps to reproduce:
1 - Open the attached patch
Note the size of the radio and toggle. Note also they have "send" symbols set
to "xxx" and "yyy" respectively
2 - Click on the big bang at the top
This composes a symbol containing space characters and sends it as a label to
both the radio and the toggle.
This seems to work: the label is actually set with spaces, and the radio and
toggle still work.
However, if you right-click on any of them and try to select "properties", the
properties dialog won't open
3 - Now save the patch and close it
4 - Open the patch again. The radio and toggle properties have been completely
"reset": their size have been reset to default, and also the "number" property
of the radio. They have lost their "send" symbol too: you can see the outlet
and if you use them, the "r" objects won't receive anything.
However, if you open the properties dialog of the radio or toggle, you'll see
that the "send" property is still there (not the same can be said for the size
and number); if you now do Apply or Ok, the send symbol will be restored.
So, spaces in the label of a gui object cause weirdnesses and potential
disaster. Note that data is lost (the properties of the gui objects) if the
patch is saved after assigning such a label, and i is lost silently with no
error message at any moment.
There are ather "forbidden" characters ithat don't behave properly n labels,
such as the open square bracket "[" (as reported in another bug report).
However the space character is more disatrous as it causes data loss.
Object should either accept ALL characters for a label, or properly detect and
refuse forbidden characters, which should be documented, avoiding unexpected
consequences.
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>Comment By: IOhannes m zmölnig (zmoelnig)
Date: 2012-11-13 15:36
Message:
the bug.pd file does not correctly show the labels with blanks after
reloading but it doesn't throw any warnings)
however, the bugfix-patch doesn't work for me.
nevertheless the problem is known and is not in the pd->gui communication,
but rather in the way the label is stored on disk (and then interpreted on
reload):
afaict, blanks (and other special chars) really must be escaped with
backslash (e.g. "A\ A\ A") when saved to disk
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Comment By: Hans-Christoph Steiner (eighthave)
Date: 2012-11-13 12:52
Message:
the values were not quoted, so just quoting them with {} fixes it. The
patch is attached.
----------------------------------------------------------------------
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