mirror of
https://github.com/luanti-org/luanti.git
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153 lines
3.1 KiB
Python
153 lines
3.1 KiB
Python
#!/usr/bin/python3
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import sys
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import re
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# preprocess files for indent check
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# Code processing:
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#
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# Tabs are kept.
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# Spaces after tabs are removed if indent is not smaller than in previous line.
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#
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# Example:
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#
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# <tab>a = 6;
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# <spc>b = 5;
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# <tab><spc>if (
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# <tab><tab><tab><spc><spc>) {
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# <tab><tab>c = 7;
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# <tab><spc>}
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#
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# Result:
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#
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# <tab>a = 6;
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# <spc>b = 5;
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# <tab>if (
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# <tab><tab><tab>) {
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# <tab><tab>c = 7;
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# <tab><spc>}
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# Multiline comments processing:
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#
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# It is expected that tabs indent from comment begining is
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# used as indent on begining of every commented line.
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#
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# Example:
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#
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# <tab>/*
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# <spc><spc>A
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# <tab><tab>B
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# <tab><spc>C
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# D
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# <tab><spc>*/
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# <tab><tab>/*
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# <spc><tab><spc>R
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# <tab><spc><tab>*/
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#
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# Result:
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#
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# <tab>/*
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# <spc>A
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# <tab>B
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# <tab>C
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# D
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# <tab>*/
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# <tab><tab>/*
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# <spc><tab>*R
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# <tab><spc>*/
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def main():
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if len(sys.argv) != 4:
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#print("Bad arguments")
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#print(sys.argv)
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exit()
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# multiline comment begining and end from command line
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mlc_begin = sys.argv[1]
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mlc_end = sys.argv[2]
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file_name = sys.argv[3]
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mlc_end_len = len(mlc_end)
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re_begin = re.escape(mlc_begin)
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re_end = re.escape(mlc_end)
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re_mlc_begin = "^.*{}".format(re_begin)
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re_mlc_begin_end = "^.*{}.*{}".format(re_begin, re_end)
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re_mlc_end = "^.*{}".format(re_end)
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file = open(file_name, "r")
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lines = []
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#print(re_mlc_begin)
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#print(re_mlc_begin_end)
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#print(re_mlc_end)
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#print(file)
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# -1 means not in the multiline comment
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# other values mean multiline comment indent in the number of tabs
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limit = -1
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# this value stores the previous line indent in code mode (not in multiline comment)
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prev = 80
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for line in file:
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if limit == -1:
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find = re.search(re_mlc_begin, line)
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if find:
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if not re.search(re_mlc_begin_end, line):
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# enter in block comment mode
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find = re.search("^\\s*", line)
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limit = find.end()
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find = re.search("^\\t*", line)
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end = find.end()
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if end < prev:
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lines.append(line)
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else:
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# in this case, there can be allowed extra trailing whitespaces
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# up to 3 trailing whitespaces are allowed
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#find = re.search("^\\t+[ ]{0,3}", line)
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# unlimited number of trailng whitespaces are allowed
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find = re.search("^\\t+[ ]*", line)
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fend = find.end() if find else 0
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if fend >= end:
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find = re.search("^\\t*", line)
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lines.append(line[0:find.end()] + line[fend:])
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else:
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lines.append(line)
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prev = end
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else:
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# in block comment mode
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find = re.search(re_mlc_end, line)
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if find:
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# erase whitechars enabled for ignore, end in block comment mode
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begin = find.end() - mlc_end_len
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if begin > limit:
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lines.append(line[0:limit] + line[begin:])
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else:
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lines.append(line)
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limit = -1
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else:
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# erase whitechars enabled for ignore
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find = re.search("^$", line)
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if find:
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lines.append(line)
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else:
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find = re.search("^\\s*", line)
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if find:
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end = find.end()
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if end > limit:
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lines.append(line[0:limit] + line[end:])
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else:
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lines.append(line)
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else:
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lines.append(line)
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file.close()
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file = open(file_name, "w")
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for line in lines:
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file.write(line)
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file.close()
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if __name__ == "__main__":
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main()
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