Topic: how to access/create a dictionary mapping unicode values to glyphnames? • RoboFont

Tagged: charsets, Scripting

This topic contains 2 replies, has 2 voices, and was last updated by david_demainlalune 7 years, 2 months ago.

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August 8, 2013 at 14:23 #5665

david_demainlalune
Member

Hello All,

I am writing a script for a friend, who needs to quickly assess the amount of work required to create a font for a one time use. In other words, the font should only cover the range of characters found in a given text.

The script parses a text (expecting utf-8 encoding) and extracts all unique characters. If those characters belong to the default charset they should be marked in a “happy” color in the currenFont, if not they should be added to the currentFont, named with their unicode value, and marked with a less “happy color”.

To test if a character belongs to the default charset, I check if there is a glyph with the corresponding unicode in the default charset. To do this, I build a dictionary mapping unicode value to glyph names. I gisted the build function here https://gist.github.com/david-demainlalune/6184788

The way I build this dictionary, creating a new font, and getting the list of all glyphs from the default charset seems slightly hacky to me and I was wondering if there is a better way of doing this? probably is… right under my nose, but I can’t see it…

In advance many thanks

regards

david

August 8, 2013 at 16:17 #5666
joanca
Participant
Probably this will work for you:
```
# -*- coding: utf-8 -*-

from fontTools import agl

txt = u"Àü"

for c in txt:
    gname = agl.UV2AGL[ord(c)]
    uni = agl.AGL2UV[gname]
    print gname, uni
```
August 8, 2013 at 22:33 #5668

david_demainlalune
Member

many thanks joanca : )

this is spot on what I needed

best

david
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