Robert Siemer wrote:
> Hello everyone,
>
> fontconfig debugging is a nightmare: Did somebody by chance write a
> script that mangles the output of FC_DEBUG enabled programs?
>
> The new output could be something like:
>
> REQUEST: <fontconfig-pattern>
> edit: family+=...
> edit: ...
> RESULT: ...
> result edit: ...
> FINAL: ...
>
> ...and so on...
It's not exactly what you're looking for, but anyway here's my lame
attempt to filter for
request -> result (font families)
You run in like this:
$ FC_DEBUG=1 some_app | ./fcdebug1.py
Beware, it's not very sophisticated... :-)
Please keep us posted if you create something better!
--
"Thou shalt not follow the Null Pointer, for at its end Chaos and
Madness lie."
#!/usr/bin/env python3
# -*- coding: utf-8 -*-
# vim: sts=4 sw=4 et
#
# Example:
# FC_DEBUG=1 firefox | ./fcdebug1.py
import sys, re
from collections import OrderedDict
quotes_re = re.compile('".*?"')
def unique(seq):
return OrderedDict.fromkeys(seq).keys()
class hacky_str(str):
def __init__(self, string):
self.__lower = string.lower()
def __hash__(self):
return hash(self.__lower)
def __eq__(self, other):
return self.__lower == other.lower()
def lower(self):
return self.__lower
class Parser:
def __init__(self):
self.in_pattern = False
self.pattern_family = None
self.match_family = None
self.results = {}
self.max_pattern_len = 0
def parse(self, line):
if line.startswith('Match Pattern') or line.startswith('Sort Pattern'):
self.in_pattern = True
if self.match_family != self.pattern_family \
and not self.pattern_family in self.results:
print('{} -> {}'.format(self.pattern_family, self.match_family))
self.results[self.pattern_family] = self.match_family
return
if line.startswith('Pattern') or line.startswith('First font Pattern'):
self.in_pattern = False
return
if line.startswith('\tfamily: '):
if self.in_pattern:
self.pattern_family = hacky_str(', '.join(unique([x.strip('"') for x in quotes_re.findall(line[9:])])))
self.max_pattern_len = max(self.max_pattern_len, len(self.pattern_family))
else:
self.match_family = ', '.join([x.strip('"') for x in quotes_re.findall(line[9:])])
def main():
parser = Parser()
try:
while True:
line = sys.stdin.readline()
if not line:
break
parser.parse(line)
except KeyboardInterrupt:
pass
print(' Unique results '.center(60, '-'))
for k, v in parser.results.items():
print('{:{}} -> {}'.format(k, parser.max_pattern_len, v))
if __name__ == '__main__':
main()
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