[Ipe-discuss] IPE7: select all objects which contain a certain code in XML?

[elwood151]

Is it possible in IPE7 to

select all objects in the current page which contain a certain string (e. g.
a color like 
stroke="0.188 0.49 0.949" )?

Could that be done with an Ipelet?

(I have imported graphs of functions from another application as PDF and I
want to format them in a consistent way:
example: all have normal dash style and pen, but different colors.
To display them unambigously in greyscale, the blue line shall e. g. be
dotted and the red one shall have a different dash style and pen, etc...

Therefore, I have to e. g. select all blue curves and change their stroke,
dash style and pen to something else.
Selecting each one by hand is very time consuming and can cause errors, so
the easiest way would be to select all of them by a certain unambigous
criterion (in this case the color).
I'm sure this could also be done by editing the xml file with search and
replace, but I don't know enough programming to parse the xml, identify the
lines belonging togehter for each "object" and then modifying them, if one
of them matches a certain criterion).

I don't know how much effort it would be to write an ipelet which parses all
objects on a page an adds those to the selection which contain a certain
string in their XML data.

Can somebody help me?
I'd happily make a donation for the helping person or for charity to
appreciate the effort.

Kind regards

Martin
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