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I have a couple (20) of svg-fonts (xml based font format), on average each one of them is about 300kb and contains about 100 Glyph-tags. I would like to process each glyph with Inkscape. So the part of XML-processing I would like to do with a Powershell script is:

  1. Open the font as XML
  2. Iterate over each glyph, grab the value of an attribute and save a temp svg (XML) parameterised with this value
  3. Process this file with Inkscape
  4. Read each of this files
  5. Built a new font-file with the new data
  6. Save the font, delete the glyph

I have read a lot of Powershell XML tutorials and tried a few times, and there is one thing I do not know what is wrong, but I'm getting each glyph from the font with this line:

$nodes = Select-Xml -Content $( Get-Content -Path $_.FullName )  -XPath "//glyph" -Namespace $namespaces

needs a lot of time and delivers 60 glyphs, even if their are more in the font. All the rest of the script is working properly, but if I image to process all 20 fonts (will be more in the future) it will take a whole day and not all glyphs are processed.

So, is there a failure in reading the file and parsing the XML? Why is this so incredibly slow and why are not all glyphs processed?

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Do your SVG's have DOCTYPE declarations in them? If so, have you tried removing them to see if that makes a difference? – DevNull Dec 14 '11 at 17:20
Hello! removing the DOCTYPE does the trick with the speed, thanks a lot! But still not more than 60 glyphs are processed, even if their are more. Why could that be? – philipp Dec 15 '11 at 11:48
Sorry, I'm not sure about why it's only processing 60 glyphs. – DevNull Dec 15 '11 at 17:49
could you put a link with some of your files to play with it and search a workaround? – voodoomsr Dec 30 '11 at 1:09
@voodoomsr i don't know what you mean with: »put a link with some of your files«, could you post a link or something that explains with a little more detail what this approach is about? – philipp Dec 31 '11 at 6:29
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Couple options for you:

  1. Select-Xml -Path test.xml -XPath "//*[local-name()='glyph']")
  2. [xml] $x = gc test.xml ; $x.SelectNodes("//*[local-name()='glyph']")

Both select 95 nodes very quickly. I tested what you put in paste bin.

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