Hi folks,
It seems, there is something in the TW core, that can mess up strings
inside <pre> elements.
some code basically does the following: It should insert "non
breakable space" in front of a "single character" line number if the
maximum number, that can be seen is 2 characters wide.
eg: put a \u00a0 (non breakable space) in front of "1", if the max
line number is "12".
pseudocode:
text = "1";
pad = "\u00a0"; // non breakable space
xx = pad + text;
xx is: " 1"
------------
The real code, is a bit more complicated.
-- info --
val = "1" ... line number
pad = "" ... empty string
minwidth = 2;
"firstNode.firstChild" is a text node "1" in the DOM
"pad" contains one or more "\u00a0" chars ...
the whole stuff is inside a <pre> element
-- real code [1] --
while (val.length + pad.length < minwidth) pad += "\u00a0";
if (pad) firstNode.insertBefore(
targetDocument.createTextNode(pad),
firstNode.firstChild);
-- --
creates: <pre>&nbsp;1</pre>
======
If the codemirror library is used without TW stuff, there is no
problem. See link [2]
If you open codemirror.tiddlyspace HelloWorld [3] and enter "cmEdit"
mode you can see the problem
Some hints???
-m
[1] https://github.com/marijnh/CodeMirror2/blob/master/lib/codemirror.js#L947
[2] http://codemirror.net/mode/tiddlywiki/index.html
[3] http://codemirror.tiddlyspace.com/#HelloWorld
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