ref: 03852d94083a33e0b10762c2225f2015f23c49d5
dir: /sys/src/cmd/python/Doc/tools/undoc_symbols.py/
#! /usr/bin/env python
"""\
This script prints out a list of undocumented symbols found in
Python include files, prefixed by their tag kind.
Pass Python's include files to ctags, parse the output into a
dictionary mapping symbol names to tag kinds.
Then, the .tex files from Python docs are read into a giant string.
Finally all symbols not found in the docs are written to standard
output, prefixed with their tag kind.
"""
# Which kind of tags do we need?
TAG_KINDS = "dpst"
# Doc sections to use
DOCSECTIONS = ["api"]# ["api", "ext"]
# Only print symbols starting with this prefix,
# to get all symbols, use an empty string
PREFIXES = ("Py", "PY")
INCLUDEPATTERN = "*.h"
# end of customization section
# Tested with EXUBERANT CTAGS
# see http://ctags.sourceforge.net
#
# ctags fields are separated by tabs.
# The first field is the name, the last field the type:
# d macro definitions (and #undef names)
# e enumerators
# f function definitions
# g enumeration names
# m class, struct, or union members
# n namespaces
# p function prototypes and declarations
# s structure names
# t typedefs
# u union names
# v variable definitions
# x extern and forward variable declarations
import os, glob, re, sys
def findnames(file, prefixes=()):
names = {}
for line in file.xreadlines():
if line[0] == '!':
continue
fields = line.split()
name, tag = fields[0], fields[-1]
if tag == 'd' and name.endswith('_H'):
continue
if prefixes:
sw = name.startswith
for prefix in prefixes:
if sw(prefix):
names[name] = tag
else:
names[name] = tag
return names
def print_undoc_symbols(prefix, docdir, incdir):
docs = []
for sect in DOCSECTIONS:
for file in glob.glob(os.path.join(docdir, sect, "*.tex")):
docs.append(open(file).read())
docs = "\n".join(docs)
incfiles = os.path.join(incdir, INCLUDEPATTERN)
fp = os.popen("ctags -IPyAPI_FUNC -IPy_GCC_ATTRIBUTE --c-types=%s -f - %s"
% (TAG_KINDS, incfiles))
dict = findnames(fp, prefix)
names = dict.keys()
names.sort()
for name in names:
if not re.search("%s\\W" % name, docs):
print dict[name], name
if __name__ == '__main__':
srcdir = os.path.dirname(sys.argv[0])
incdir = os.path.normpath(os.path.join(srcdir, "../../Include"))
docdir = os.path.normpath(os.path.join(srcdir, ".."))
print_undoc_symbols(PREFIXES, docdir, incdir)