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.custom-format.py
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.custom-format.py
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#!/usr/bin/env python3
#
# american fuzzy lop++ - custom code formatter
# --------------------------------------------
#
# Written and maintaned by Andrea Fioraldi <andreafioraldi@gmail.com>
#
# Copyright 2015, 2016, 2017 Google Inc. All rights reserved.
# Copyright 2019 AFLplusplus Project. All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at:
#
# http://www.apache.org/licenses/LICENSE-2.0
#
import subprocess
import sys
import os
import re
# string_re = re.compile('(\\"(\\\\.|[^"\\\\])*\\")') # future use
with open(".clang-format") as f:
fmt = f.read()
CLANG_FORMAT_BIN = os.getenv("CLANG_FORMAT_BIN")
if CLANG_FORMAT_BIN is None:
o = 0
try:
p = subprocess.Popen(["clang-format", "--version"], stdout=subprocess.PIPE)
o, _ = p.communicate()
o = str(o, "utf-8")
o = o[len("clang-format version "):].strip()
o = o[:o.find(".")]
o = int(o)
except: pass
if o < 7:
if subprocess.call(['which', 'clang-format-7'], stdout=subprocess.PIPE) == 0:
CLANG_FORMAT_BIN = 'clang-format-7'
elif subprocess.call(['which', 'clang-format-8'], stdout=subprocess.PIPE) == 0:
CLANG_FORMAT_BIN = 'clang-format-8'
elif subprocess.call(['which', 'clang-format-9'], stdout=subprocess.PIPE) == 0:
CLANG_FORMAT_BIN = 'clang-format-9'
elif subprocess.call(['which', 'clang-format-10'], stdout=subprocess.PIPE) == 0:
CLANG_FORMAT_BIN = 'clang-format-10'
else:
print ("clang-format 7 or above is needed. Aborted.")
exit(1)
else:
CLANG_FORMAT_BIN = 'clang-format'
COLUMN_LIMIT = 80
for line in fmt.split("\n"):
line = line.split(":")
if line[0].strip() == "ColumnLimit":
COLUMN_LIMIT = int(line[1].strip())
def custom_format(filename):
p = subprocess.Popen([CLANG_FORMAT_BIN, filename], stdout=subprocess.PIPE)
src, _ = p.communicate()
src = str(src, "utf-8")
in_define = False
last_line = None
out = ""
for line in src.split("\n"):
if line.startswith("#"):
if line.startswith("#define"):
in_define = True
if "/*" in line and not line.strip().startswith("/*") and line.endswith("*/") and len(line) < (COLUMN_LIMIT-2):
cmt_start = line.rfind("/*")
line = line[:cmt_start] + " " * (COLUMN_LIMIT-2 - len(line)) + line[cmt_start:]
define_padding = 0
if last_line is not None and in_define and last_line.endswith("\\"):
last_line = last_line[:-1]
define_padding = max(0, len(last_line[last_line.rfind("\n")+1:]))
if last_line is not None and last_line.strip().endswith("{") and line.strip() != "":
line = (" " * define_padding + "\\" if in_define else "") + "\n" + line
elif last_line is not None and last_line.strip().startswith("}") and line.strip() != "":
line = (" " * define_padding + "\\" if in_define else "") + "\n" + line
elif line.strip().startswith("}") and last_line is not None and last_line.strip() != "":
line = (" " * define_padding + "\\" if in_define else "") + "\n" + line
if not line.endswith("\\"):
in_define = False
out += line + "\n"
last_line = line
return (out)
args = sys.argv[1:]
if len(args) == 0:
print ("Usage: ./format.py [-i] <filename>")
print ()
print (" The -i option, if specified, let the script to modify in-place")
print (" the source files. By default the results are written to stdout.")
print()
exit(1)
in_place = False
if args[0] == "-i":
in_place = True
args = args[1:]
for filename in args:
code = custom_format(filename)
if in_place:
with open(filename, "w") as f:
f.write(code)
else:
print(code)