cfg/bin/gosorttags
Knut Ahlers df3f68f838
Add golang tag sorter
Signed-off-by: Knut Ahlers <knut@ahlers.me>
2021-01-10 21:50:23 +01:00

76 lines
1.5 KiB
Python
Executable File

#!/usr/bin/env python3
import re
import sys
STATE_KEY = 0
STATE_SKIP = 1
STATE_VALUE = 2
def sort_tags(tagstring):
tags = {}
state = STATE_KEY
c_key = ''
c_value = ''
for c in tagstring:
if state == STATE_KEY and c == ':':
state = STATE_SKIP
continue
if state == STATE_KEY:
c_key += c
continue
if state == STATE_SKIP and c == ' ':
state = STATE_KEY
continue
if state == STATE_SKIP and c == '"':
state = STATE_VALUE
continue
if state == STATE_SKIP:
continue
if state == STATE_VALUE and c == '"':
state = STATE_SKIP
tags[c_key] = c_value
c_key = ''
c_value = ''
continue
if state == STATE_VALUE:
c_value += c
continue
out = []
for key in sorted(tags.keys()):
out.append('{key}:"{value}"'.format(
key=key,
value=tags[key],
))
return ' '.join(out)
def main():
for line in sys.stdin.read().rstrip('\n').split('\n'):
match = re.search(r'(?P<fielddef>.*) `(?P<tags>.*)`$', line)
if match is None:
print(line)
continue
print('{definition} `{tags}`'.format(
definition=match.group('fielddef'),
tags=sort_tags(match.group('tags')),
))
return 0
if __name__ == '__main__':
sys.exit(main())