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#!/usr/bin/env python3
# ##### BEGIN GPL LICENSE BLOCK #####
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software Foundation,
# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
#
# ##### END GPL LICENSE BLOCK #####
# Checks for defines which aren't used anywhere.
import os
import sys
PWD = os.path.dirname(__file__)
sys.path.append(os.path.join(PWD, "..", "utils_maintenance", "modules"))
from batch_edit_text import run
SOURCE_DIR = os.path.normpath(os.path.abspath(os.path.normpath(os.path.join(PWD, "..", "..", ".."))))
# TODO, move to config file
SOURCE_DIRS = (
"source",
)
SOURCE_EXT = (
# C/C++
".c", ".h", ".cpp", ".hpp", ".cc", ".hh", ".cxx", ".hxx", ".inl",
# Objective C
".m", ".mm",
# GLSL
".glsl",
)
words = set()
words_multi = set()
defines = {}
import re
re_words = re.compile("[A-Za-z_][A-Za-z_0-9]*")
re_defines = re.compile("^\s*#define\s+([A-Za-z_][A-Za-z_0-9]*)", re.MULTILINE)
# From
# https://stackoverflow.com/a/18381470/432509
def remove_comments(string):
pattern = r"(\".*?\"|\'.*?\')|(/\*.*?\*/|//[^\r\n]*$)"
# first group captures quoted strings (double or single)
# second group captures comments (//single-line or /* multi-line */)
regex = re.compile(pattern, re.MULTILINE|re.DOTALL)
def _replacer(match):
# if the 2nd group (capturing comments) is not None,
# it means we have captured a non-quoted (real) comment string.
if match.group(2) is not None:
return "" # so we will return empty to remove the comment
else: # otherwise, we will return the 1st group
return match.group(1) # capture
return regex.sub(_replacer, string)
def extract_terms(fn, data_src):
data_src_nocomments = remove_comments(data_src)
for m in re_words.finditer(data_src_nocomments):
words_len = len(words)
m_text = m.group()
words.add(m_text)
if words_len == len(words):
words_multi.add(m_text)
for m in re_defines.finditer(data_src_nocomments):
defines[m.group(1)] = fn
# Don't edit the file.
return None
run(
directories=[os.path.join(SOURCE_DIR, d) for d in SOURCE_DIRS],
is_text=lambda fn: fn.endswith(SOURCE_EXT),
text_operation=extract_terms,
# Can't be used if we want to accumulate in a global variable.
use_multiprocess=False,
)
print("Found", len(defines), "defines, searching", len(words_multi), "terms...")
for fn, define in sorted([(fn, define) for define, fn in defines.items()]):
if define not in words_multi:
print(define, "->", fn)