/util/chkformat
Python | 168 lines | 113 code | 22 blank | 33 comment | 31 complexity | a02f5dcbd42bc58eca314530a53777e5 MD5 | raw file
Possible License(s): BSD-3-Clause, LGPL-2.1
- #!/usr/bin/env python
- # Copyright (c) 2006 The Regents of The University of Michigan
- # All rights reserved.
- #
- # Redistribution and use in source and binary forms, with or without
- # modification, are permitted provided that the following conditions are
- # met: redistributions of source code must retain the above copyright
- # notice, this list of conditions and the following disclaimer;
- # redistributions in binary form must reproduce the above copyright
- # notice, this list of conditions and the following disclaimer in the
- # documentation and/or other materials provided with the distribution;
- # neither the name of the copyright holders nor the names of its
- # contributors may be used to endorse or promote products derived from
- # this software without specific prior written permission.
- #
- # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- # "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- # LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- # A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- # OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- # SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- # LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- # DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- # THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- #
- # Authors: Nathan Binkert
- from getopt import getopt, GetoptError
- import re
- import sys
- tabsize = 8
- lead = re.compile(r'^([ \t])+')
- trail = re.compile(r'[ \t]+$')
- any_control = re.compile(r'\b(if|while|for)[ \t]*[(]')
- good_control = re.compile(r'\b(if|while|for) [(]')
- def linelen(line):
- tabs = line.count('\t')
- if not tabs:
- return len(line)
- count = 0
- for c in line:
- if c == '\t':
- count += tabsize - count % tabsize
- else:
- count += 1
- return count
- toolong = 0
- toolong80 = 0
- leadtabs = 0
- trailwhite = 0
- badcontrol = 0
- cret = 0
- def validate(filename, verbose, code):
- global toolong, toolong80, leadtabs, trailwhite, badcontrol, cret
- def msg(lineno, line, message):
- print '%s:%d>' % (filename, lineno + 1), message
- if verbose > 2:
- print line
- def bad():
- if code is not None:
- sys.exit(code)
- cpp = filename.endswith('.cc') or filename.endswith('.hh')
- py = filename.endswith('.py')
- if py + cpp != 1:
- raise AttributeError, \
- "I don't know how to deal with the file %s" % filename
- try:
- f = file(filename, 'r')
- except OSError:
- if verbose > 0:
- print 'could not open file %s' % filename
- bad()
- return
- for i,line in enumerate(f):
- line = line.rstrip('\n')
- # no carriage returns
- if line.find('\r') != -1:
- cret += 1
- if verbose > 1:
- msg(i, line, 'carriage return found')
- bad()
- # lines max out at 79 chars
- llen = linelen(line)
- if llen > 79:
- toolong += 1
- if llen == 80:
- toolong80 += 1
- if verbose > 1:
- msg(i, line, 'line too long (%d chars)' % llen)
- bad()
- # no tabs used to indent
- match = lead.search(line)
- if match and match.group(1).find('\t') != -1:
- leadtabs += 1
- if verbose > 1:
- msg(i, line, 'using tabs to indent')
- bad()
- # no trailing whitespace
- if trail.search(line):
- trailwhite +=1
- if verbose > 1:
- msg(i, line, 'trailing whitespace')
- bad()
- # for c++, exactly one space betwen if/while/for and (
- if cpp:
- match = any_control.search(line)
- if match and not good_control.search(line):
- badcontrol += 1
- if verbose > 1:
- msg(i, line, 'improper spacing after %s' % match.group(1))
- bad()
- if __name__ == '__main__':
- progname = sys.argv[0]
- def usage(code=None):
- print >>sys.stderr, '''%s [-n] [-q] [-v] <filenames>''' % progname
- if code is not None:
- sys.exit(code)
- try:
- opts, args = getopt(sys.argv[1:], '-nv')
- except GetoptError:
- usage(2)
- code = 1
- verbose = 1
- for opt,arg in opts:
- if opt == '-n':
- code = None
- if opt == '-q':
- verbose -= 1
- if opt == '-v':
- verbose += 1
- for filename in args:
- validate(filename, verbose=verbose, code=code)
- if verbose > 0:
- print '''\
- %d violations of lines over 79 chars. %d of which are 80 chars exactly.
- %d cases of whitespace at the end of a line.
- %d cases of tabs to indent.
- %d bad parens after if/while/for.
- %d carriage returns found.
- ''' % (toolong, toolong80, trailwhite, leadtabs, badcontrol, cret)