45 lines
1.3 KiB
Python
45 lines
1.3 KiB
Python
"""
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trainling_spaces - checker for vxnorm
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This file does not expose an explicite VxChecker object declaration to avoid
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dependencies handling, you just need to provide:
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======================= ===============================================
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parse_file() Parse the source file
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======================= ===============================================
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"""
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#---
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# Public
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#---
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def parse_file(checker, mfile, _):
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""" parse the mapped file
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The file is mapped using mmap() and seeked through offset 0 to avoid too
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many I/O operations with classical file primitive.
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@args
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> checker (VxChecker) - current checker instance for this file
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> mfile (mmap) - mmap instance of the file, seeked at 0
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> pathname (str) - file pathname
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@return
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> Nothing
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"""
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counter = 0
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checker.select_rule('trailing')
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for line in mfile.getlines():
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counter += 1
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line_end = len(line) - 1
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line_end = line_end - (line[line_end] == '\n')
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if line_end <= 0:
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continue
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for i in range(line_end, 0, -1):
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if not line[i].isspace():
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break
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if i != line_end:
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checker.notify(
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f"{counter}:{i+1}",
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f"trailing space at ({i+1} != {line_end})",
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)
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