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#!/usr/bin/env python3
import sys
import re
import os
import argparse
parser = argparse.ArgumentParser( prog='CheckComments')
parser.add_argument('-v', '--debug', dest='debug', action='store_true')
parser.add_argument('-l', '--limit', dest='ok', type=float, default=100.0)
parser.add_argument('path', nargs='+', help='Path to source file to check comments')
args = parser.parse_args()
errors = 0
for path in args.path:
other_depth = 0
brace_depth = 0
code_count = 0
comment_count = 0
long_comment = None
long_comments = {}
kind = "function"
function_name = "<unknown>"
ctor_dtor = False
linenum = 0
print(f'checking {path}')
fd = open(path, 'r')
for line in fd.readlines():
linenum += 1
match = re.search(r'/\*\*(.*)', line)
if match:
long_comment = re.sub(r'\s+', '', match.group(1))
continue
elif long_comment:
match = re.search(r'(.*)\*/', line)
if match:
long_comment += re.sub(r'\s+', '', match.group(1))
comment_count = len(long_comment)
long_comment = None
else:
long_comment += re.sub(r'\s+', '', line[:-1])
continue
if brace_depth == 0:
match = re.search(r'(namespace|enum|class|struct|union)', line)
if match:
kind = match.group(1)
if args.debug: print("kind =", kind)
elif kind == "function":
match = re.search(r'(\S+)\(', line)
if match:
function_name = match.group(1)
long_comments[function_name] = comment_count
comment_count = 0
if args.debug: print("name found %s" % function_name)
if re.search(r'{', line) and not re.search('@{', line):
if kind == "function":
brace_depth += 1
if args.debug: print("brace_depth =", brace_depth)
else:
other_depth += 1
kind = "function"
if args.debug: print("other_depth =", other_depth)
if re.search(r'}', line) and not re.search('@}', line):
if brace_depth > 0:
brace_depth -= 1
if args.debug: print("brace_depth =", brace_depth)
if brace_depth == 0:
if args.debug: print("function done")
if function_name in long_comments:
comment_count += long_comments[function_name]
if code_count == 0:
percent = args.ok
print("%7s %4d/%4d %s:%d: %s" % \
("empty", comment_count, code_count,
os.path.basename(path), linenum,
function_name))
errors += 1
else:
percent = 100.0 * (float(comment_count) /
float(code_count))
if percent < args.ok and not ctor_dtor:
print("%6.0f%% %4d/%4d %s:%d: %s" % \
(percent, comment_count, code_count,
os.path.basename(path), linenum,
function_name))
errors += 1
code_count = 0
comment_count = 0
kind = "function"
function_name = "<unknown>"
ctor_dtor = False
else:
other_depth -= 1
if args.debug: print("other_depth =", other_depth)
if brace_depth > 0:
if re.search(r'TRACE_[CD]TOR', line):
ctor_dtor = True
line = re.sub(r'\s+', '', line[:-1])
match = re.search(r'//(.*)', line)
if match:
comment = match.group(1)
line = re.sub(r'//.*', '', line)
else:
comment = None
if line:
code_count += len(line)
if comment:
comment_count += len(comment)
sys.exit(errors)
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