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#!/usr/bin/python3
#
# Copyright 2013-2021 The Khronos Group Inc.
#
# SPDX-License-Identifier: Apache-2.0
# Usage: realign [infile] > outfile
# Used to realign XML tags in the Vulkan registry after it's operated on by
# some other filter, since whitespace inside a tag isn't part of the
# internal representation.
import copy, sys, string, re
def realignXML(fp):
patterns = [
[ r'(^ *\<type .*)(category=[\'"]bitmask[\'"].*)', 58 ],
[ r'(^ *\<enum [bv].*)(name=.*)', 28 ],
[ r'(^ *\<enum [bv].*)(comment=.*)', 85 ]
]
# Assemble compiled expressions to match and alignment columns
numpat = len(patterns)
regexp = [ re.compile(patterns[i][0]) for i in range(0,numpat)]
column = [ patterns[i][1] for i in range(0,numpat)]
lines = fp.readlines()
for line in lines:
emitted = False
for i in range(0,len(patterns)):
match = regexp[i].match(line)
if (match):
if (not emitted):
#print('# While processing line: ' + line, end='')
emitted = True
#print('# matched expression: ' + patterns[i][0])
#print('# clause 1 = ' + match.group(1))
#print('# clause 2 = ' + match.group(2))
line = match.group(1).ljust(column[i]) + match.group(2)
if (emitted):
print(line)
else:
print(line, end='')
if __name__ == '__main__':
if (len(sys.argv) > 1):
realignXML(open(sys.argv[1], 'r', encoding='utf-8'))
else:
realignXML(sys.stdin)
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