Created
October 25, 2016 00:10
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Migrate Xcode 8.0 style comment to Xcode 8.1 style
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# usage: | |
# IFS=$'\n' find ROOT_SOURCE_FOLDER -name "*.swift" -exec python PATH/TO/migrate.py {} \; | |
import sys | |
import re | |
func = re.compile('func\s+\w+\(') | |
param = re.compile('(?P<indent>\s*)/// -[ ]*[pP]arameter[ ]+(?P<name>\w+)[ ]*:(?P<description>[^\n]+)\n') | |
ret = re.compile('(?P<indent>\s*)/// -[ ]*[rR]eturns[ ]*:(?P<description>[^\n]+)\n') | |
continuation = re.compile('\s*///(?P<description>[^\n]+)') | |
def find_docstrings(lines): | |
result = [] | |
for i, line in enumerate(lines): | |
if not func.search(line): | |
continue | |
j = i - 1 | |
while j >= 0 and lines[j].strip().startswith('///'): | |
j -= 1 | |
if j + 1 < i: | |
result.append((j+1, i)) | |
return result | |
if __name__ == '__main__': | |
for path in sys.argv[1:]: | |
source = [] | |
with open(path) as source_file: | |
source = source_file.readlines() | |
docstring_ranges = find_docstrings(source) | |
target = [] | |
start = 0 | |
for r in docstring_ranges: | |
target += source[start: r[0]] | |
description_ended = False | |
D = 0 | |
P = 1 | |
R = 2 | |
stage = D | |
parameter_continue = False | |
description = [] | |
parameters = [] | |
returns = [] | |
for line in [source[i] for i in xrange(r[0], r[1])]: | |
params = param.search(line) | |
if params: | |
stage = P | |
parameters.append(params.groupdict()) | |
continue | |
rets = ret.search(line) | |
if rets: | |
stage = R | |
returns.append(rets.groupdict()) | |
continue | |
if stage == D: | |
description.append(line) | |
continue | |
else: | |
cont = continuation.search(line) | |
if cont: | |
cont_description = cont.groupdict()['description'] | |
if stage == P: | |
indent = parameters[-1]['indent'] | |
original_desc = parameters[-1]['description'] | |
next_line = '{}///{}'.format(indent, cont_description[8:]) | |
parameters[-1]['description'] = original_desc + '\n' + next_line | |
elif stage == R: | |
indent = returns[-1]['indent'] | |
original_desc = returns[-1]['description'] | |
next_line = '{}///{}'.format(indent, cont_description[8:]) | |
returns[-1]['description'] = original_desc + ' ' + cont_description | |
target += description | |
if parameters: | |
if len(parameters) == 1: | |
target.append("{indent}/// - Parameter {name}:{description}\n".format(**parameters[0])) | |
else: | |
target.append("{}/// - Parameters:\n".format(parameters[0]['indent'])) | |
for p in parameters: | |
target.append("{indent}/// - {name}:{description}\n".format(**p)) | |
if returns: | |
target.append("{}///\n".format(returns[0]["indent"])) | |
target.append("{indent}/// - Returns:{description}\n".format(**returns[0])) | |
start = r[1] | |
target += source[start:] | |
with open(path, 'w') as target_file: | |
target_file.write(''.join(target)) |
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