aboutsummaryrefslogtreecommitdiff
path: root/.custom-format.py
blob: 7ac63396a62da27bc5778673624c7099ccec0390 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
#!/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 2019-2022 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-11", "--version"], stdout=subprocess.PIPE)
        o, _ = p.communicate()
        o = str(o, "utf-8")
        o = re.sub(r".*ersion ", "", o)
        # o = o[len("clang-format version "):].strip()
        o = o[: o.find(".")]
        o = int(o)
    except:
        print("clang-format-11 is needed. Aborted.")
        exit(1)
    # 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-11'], stdout=subprocess.PIPE) == 0:
    #        CLANG_FORMAT_BIN = 'clang-format-11'
    #    else:
    #        print ("clang-format 7 or above is needed. Aborted.")
    #        exit(1)
    else:
        CLANG_FORMAT_BIN = "clang-format-11"

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.lstrip().startswith("#"):
            if line[line.find("#") + 1 :].lstrip().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)