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api: stop using 'Optional', 'OAttr'/'OptionalAttr' classes
There does not seem to be a good reason to use the 'Optional' and
'OptionalAttr' classes.
It makes the code harder to understand. And worse, the 'default value'
specified is not always used, which can thus give false information to
users.
The way Optional was used in the API calls is twofold:
1.either by effectively extracting a value, via Optional.extract(param).
If 'param' was indeed specified by the user, then this would yield that
user-specified value. Otherwise, it would yield the value declared in the
parameter declaration, e.g. param=Optional(defaultvalue).
2.or by checking if a variable is an instance of the Optional class. In case
a user effectively passed a value, this value will not be of the
Optional class. So if a parameter is an object of class Optional, we know
the user did not pass a value, and we can apply some default.
In the declaration of the parameter, the specified default value will only
be used if the 'extract' method is used, i.e. method 1 above.
A simpler way to address this problem of default values is just with Python
default values, using 'None' as magic value if the default will be
calculated inside the method.
The docstrings still specify something like:
type: Optional(bool)
which is humanly readable and does not necessarily refer to a class called
'Optional', so such strings are kept.
There does not seem to be a good reason to use the 'Optional' and
'OptionalAttr' classes.
It makes the code harder to understand. And worse, the 'default value'
specified is not always used, which can thus give false information to
users.
The way Optional was used in the API calls is twofold:
1.either by effectively extracting a value, via Optional.extract(param).
If 'param' was indeed specified by the user, then this would yield that
user-specified value. Otherwise, it would yield the value declared in the
parameter declaration, e.g. param=Optional(defaultvalue).
2.or by checking if a variable is an instance of the Optional class. In case
a user effectively passed a value, this value will not be of the
Optional class. So if a parameter is an object of class Optional, we know
the user did not pass a value, and we can apply some default.
In the declaration of the parameter, the specified default value will only
be used if the 'extract' method is used, i.e. method 1 above.
A simpler way to address this problem of default values is just with Python
default values, using 'None' as magic value if the default will be
calculated inside the method.
The docstrings still specify something like:
type: Optional(bool)
which is humanly readable and does not necessarily refer to a class called
'Optional', so such strings are kept.
aa6f17a53b49 f38b50f8a6a6 f38b50f8a6a6 f38b50f8a6a6 f38b50f8a6a6 f38b50f8a6a6 f38b50f8a6a6 f38b50f8a6a6 f38b50f8a6a6 0a277465fddf f38b50f8a6a6 f38b50f8a6a6 f38b50f8a6a6 f38b50f8a6a6 f38b50f8a6a6 f38b50f8a6a6 f38b50f8a6a6 f38b50f8a6a6 ed2fb6e84a02 ed2fb6e84a02 ed2fb6e84a02 ed2fb6e84a02 ed2fb6e84a02 ed2fb6e84a02 ed2fb6e84a02 ed2fb6e84a02 ed2fb6e84a02 ed2fb6e84a02 f38b50f8a6a6 f38b50f8a6a6 f38b50f8a6a6 f38b50f8a6a6 f38b50f8a6a6 a188803df37e a188803df37e 01aca0a4f876 a8e6bb9ee9ea 665dfa112f2c f38b50f8a6a6 f38b50f8a6a6 f38b50f8a6a6 f38b50f8a6a6 f38b50f8a6a6 f38b50f8a6a6 f38b50f8a6a6 f38b50f8a6a6 f38b50f8a6a6 a8e6bb9ee9ea f38b50f8a6a6 f38b50f8a6a6 f38b50f8a6a6 a8e6bb9ee9ea f38b50f8a6a6 f38b50f8a6a6 f38b50f8a6a6 f38b50f8a6a6 f38b50f8a6a6 f38b50f8a6a6 f38b50f8a6a6 ed2fb6e84a02 ed2fb6e84a02 ed2fb6e84a02 ed2fb6e84a02 ed2fb6e84a02 ed2fb6e84a02 ed2fb6e84a02 ed2fb6e84a02 ed2fb6e84a02 ed2fb6e84a02 f38b50f8a6a6 f38b50f8a6a6 f38b50f8a6a6 f38b50f8a6a6 f38b50f8a6a6 f38b50f8a6a6 f38b50f8a6a6 665dfa112f2c a188803df37e a8e6bb9ee9ea f38b50f8a6a6 f38b50f8a6a6 f38b50f8a6a6 | #!/usr/bin/env python3
"""
Consistent formatting of rst section titles
"""
import re
import subprocess
spaces = [
(0, 1), # we assume this is a over-and-underlined header
(2, 1),
(1, 1),
(1, 0),
(1, 0),
]
# http://sphinx-doc.org/rest.html :
# for the Python documentation, this convention is used which you may follow:
# # with overline, for parts
# * with overline, for chapters
# =, for sections
# -, for subsections
# ^, for subsubsections
# ", for paragraphs
pystyles = ['#', '*', '=', '-', '^', '"']
# match on a header line underlined with one of the valid characters
headermatch = re.compile(r'''\n*(.+)\n([][!"#$%&'()*+,./:;<=>?@\\^_`{|}~-])\2{2,}\n+''', flags=re.MULTILINE)
def main():
filenames = subprocess.check_output(['hg', 'loc', 'set:**.rst+kallithea/i18n/how_to']).splitlines()
for fn in filenames:
fn = fn.decode()
print('processing %s' % fn)
s = open(fn).read()
# find levels and their styles
lastpos = 0
styles = []
for markup in headermatch.findall(s):
style = markup[1]
if style in styles:
stylepos = styles.index(style)
if stylepos > lastpos + 1:
print('bad style %r with level %s - was at %s' % (style, stylepos, lastpos))
else:
stylepos = len(styles)
if stylepos > lastpos + 1:
print('bad new style %r - expected %r' % (style, styles[lastpos + 1]))
else:
styles.append(style)
lastpos = stylepos
# remove superfluous spacing (may however be restored by header spacing)
s = re.sub(r'''(\n\n)\n*''', r'\1', s, flags=re.MULTILINE)
if styles:
newstyles = pystyles[pystyles.index(styles[0]):]
def subf(m):
title, style = m.groups()
level = styles.index(style)
before, after = spaces[level]
newstyle = newstyles[level]
return '\n' * (before + 1) + title + '\n' + newstyle * len(title) + '\n' * (after + 1)
s = headermatch.sub(subf, s)
# remove superfluous spacing when headers are adjacent
s = re.sub(r'''(\n.+\n([][!"#$%&'()*+,./:;<=>?@\\^_`{|}~-])\2{2,}\n\n\n)\n*''', r'\1', s, flags=re.MULTILINE)
# fix trailing space and spacing before link sections
s = s.strip() + '\n'
s = re.sub(r'''\n+((?:\.\. _[^\n]*\n)+)$''', r'\n\n\n\1', s)
open(fn, 'w').write(s)
print(subprocess.check_output(['hg', 'diff'] + filenames))
if __name__ == '__main__':
main()
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