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#!/usr/bin/env python3
import os.path
import re
import sys
def process_comment(fd, comment, first_param, last_param):
if first_param < 0:
# Nothing to do: just copy the comment
fd.write("".join(comment))
else:
params = list()
# Measure the indentation of the first param and use that to create an empty comment line string:
m = re.match(r" */", comment[0])
if not m:
raise Exception("{}: Not a comment ? '{}'".format(path,comment[first_param]))
line_prefix = " " * len(m.group(0)) + "*"
empty_line = line_prefix +"\n"
fd.write(comment[0])
# Copy the non param lines with the correct indentation:
for comment_line in range(1,first_param):
line = comment[comment_line]
m = re.match(" *\*(.*)", line)
if not m:
raise Exception("{}:{}: Not a comment line ? ".format(path, n_line - len(comment) + comment_line + 1))
fd.write(line_prefix+ m.group(1)+"\n")
# For each param split the line into 3 columns: param, param_name, description
for param in range(first_param, last_param):
m = re.match(r"[^@]+(@param\[[^\]]+\]) +(\S+) +(.+)", comment[param])
if m:
params.append( (" "+m.group(1), m.group(2), m.group(3)) )
else:
# If it's not a match then it must be a multi-line param description:
m = re.match(" *\* +(.*)", comment[param])
if not m:
raise Exception("{}:{}: Not a comment line ? ".format(path, n_line - len(comment) + param + 1))
params.append( ("", "", m.group(1)) )
# Now that we've got a list of params, find what is the longest string for each column:
max_len = [0, 0]
for p in params:
for l in range(len(max_len)):
max_len[l] = max(max_len[l], len(p[l]))
# Insert an empty line if needed before the first param to make it easier to read:
m = re.match(r" *\* *$", comment[first_param - 1])
if not m:
# insert empty line
fd.write(empty_line)
# Write out the formatted list of params:
for p in params:
fd.write("{}{}{} {}{} {}\n".format( line_prefix,
p[0], " " * (max_len[0] - len(p[0])),
p[1], " " * (max_len[1] - len(p[1])),
p[2]))
# If the next line after the list of params is a command (@return, @note, @warning, etc), insert an empty line to separate it from the list of params
if last_param < len(comment) - 1:
if re.match(r" *\* *@\w+", comment[last_param]):
# insert empty line
fd.write(empty_line)
# Copy the remaining of the comment with the correct indentation:
for comment_line in range(last_param,len(comment)):
line = comment[comment_line]
m = re.match(" *\*(.*)", line)
if not m:
raise Exception("{}:{}: Not a comment line ? ".format(path, n_line - len(comment) + comment_line + 1))
fd.write(line_prefix+ m.group(1)+"\n")
if __name__ == "__main__":
n_file=0
if len(sys.argv) == 1:
paths = []
for top_level in ["./arm_compute", "./src", "./examples", "./tests", "./utils", "./framework", "./support"]:
for root, _, files in os.walk(top_level):
paths.extend([os.path.join(root, f) for f in files])
else:
paths = sys.argv[1:]
for path in paths:
if (path[-3:] not in ("cpp", "inl") and
path[-2:] not in ("cl") and
path[-2:] not in ("cs") and
path[-1] not in ("h")):
continue
print("[{}] {}".format(n_file, path))
n_file += 1
with open(path,'r+', encoding="utf-8") as fd:
comment = list()
first_param = -1
last_param = -1
n_line = 0
lines = fd.readlines()
fd.seek(0)
fd.truncate()
for line in lines:
n_line += 1
# Start comment
# Match C-style comment /* anywhere in the line
if re.search(r"/\*", line):
#print("Start comment {}".format(n_line))
if len(comment) > 0:
raise Exception("{}:{}: Already in a comment!".format(path,n_line))
comment.append(line)
# Comment already started
elif len(comment) > 0:
#print("Add line to comment {}".format(n_line))
comment.append(line)
# Non-comment line
else:
#print("Normal line {}".format(n_line))
fd.write(line)
# Match param declaration in Doxygen comment
# @param[in] name description
if re.search(r"@param\[[^\]]+\] +\S+ +\S", line):
#print("Param {}".format(n_line))
if first_param < 0:
first_param = len(comment) - 1
last_param = len(comment)
# Match end of C-style comment */
if re.search(r"\*/", line):
if re.search('"[^"]*\*/[^"]*"', line):
#print("End of comment inside a string: ignoring")
pass
else:
#print("End comment {}".format(n_line))
if len(comment) < 1:
raise Exception("{}:{}: Was not in a comment! ".format(path, n_line))
#print("Process comment {} {}".format(first_param, last_param))
process_comment(fd, comment, first_param, last_param)
comment = list()
first_param = -1
last_param = -1
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