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#!/usr/bin/env python3
import sys
import re
from subprocess import Popen, PIPE
from argparse import ArgumentParser
__version__ = "0.1"
RE_FN = re.compile("[^\s]+\s+([^\(]+)\(")
RE_STRUCT = re.compile("(struct\s+[^{]+)\s*{")
RE_DEFINE = re.compile("#define\s+([^(]+)\(")
RE_DOC = re.compile("\s+\*\s?(.*\n)")
RE_SEC = re.compile("//\s+@(.*)\n")
RE_SECDOC = re.compile("//\s?(.*\n)")
def main():
parser = ArgumentParser(description="Include docs to markdown",
epilog="Copyright (C) 2020 Juan J Martinez <jjm@usebox.net>",
)
parser.add_argument("--version", action="version",
version="%(prog)s " + __version__)
parser.add_argument("--doc-version", dest="docver", default=None,
help="Use this as version instead of git tag/commit")
parser.add_argument("--header", dest="header", default=None,
help="Add this file at the begining of the document")
parser.add_argument("--footer", dest="footer", default=None,
help="Add this file at the end of the document")
parser.add_argument("title", help="Title of the resulting document")
args = parser.parse_args()
if args.docver is None:
proc = Popen(["git", "describe", "--abbrev=0", "--tags"],
stdout=PIPE, stderr=PIPE)
out, err = proc.communicate()
if proc.returncode != 0:
proc = Popen(["git", "rev-parse", "--short", "HEAD"],
stdout=PIPE, stderr=PIPE)
out, err = proc.communicate()
out = b"git-" + out
docver = out.decode("utf-8").strip()
else:
docver = args.docver
data = sys.stdin.readlines()
ref = {}
section = None
sections = {}
while data:
line = data.pop(0)
# section comment
if line.strip().startswith("//"):
g = RE_SEC.search(line)
if g:
section = g.group(1)
doclines = []
while True:
line = data.pop(0)
if not line.strip():
break
doclines.append(line)
doc = ""
for l in doclines:
g = RE_SECDOC.match(l)
if g:
doc += g.group(1)
sections[section] = doc
# begin fn/struct comment
if line.strip() == "/**":
doclines = []
while True:
line = data.pop(0)
if line.strip() == "*/":
break
doclines.append(line)
line = data.pop(0)
g = RE_DEFINE.search(line)
if g is None:
g = RE_STRUCT.search(line)
if g is None:
g = RE_FN.search(line)
if g is None:
continue
else:
fn = line.strip()
else:
fn = line
while True:
line = data.pop(0)
fn += line
if line.strip() == "};":
break
else:
fn = line
while True:
line = data.pop(0)
fn += line
if not line.strip().endswith("\\"):
fn = fn.rstrip()
break
name = g.group(1).strip()
anchor = name.replace(" ", "-")
doc = ""
for l in doclines:
g = RE_DOC.match(l)
if g:
doc += g.group(1)
ref[name] = {"name": name, "anchor": anchor,
"fn": fn, "doc": doc, "section": section}
print("""\
---
title: '{title}'
subtitle: 'Version {version}'
...""".format(title=args.title, version=docver))
if args.header:
with open(args.header, "rt") as fd:
print(fd.read())
csec = None
for k in sorted(ref.keys(), key=lambda k: (ref[k]["section"], k)):
v = ref[k]
if csec != v["section"]:
csec = v["section"]
print("## %s\n" % csec)
if csec in sections:
print(sections[csec])
print("""\
### {name}
```c
{fn}
```
{doc}
""".format(**v))
if args.footer:
with open(args.footer, "rt") as fd:
print(fd.read())
if __name__ == "__main__":
main()
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