cgal/Scripts/developer_scripts/add_toc_to_github_wiki_page.py

126 lines
2.7 KiB
Python

from sys import argv
from sys import exit
import codecs
import re
import argparse
parser = argparse.ArgumentParser()
parser.add_argument("filename",
help="the Mardown file to process")
parser.add_argument("--codebase",
help="for a Markdown file of Codebase instead of Github",
action="store_true")
parser.add_argument("--h1",
help="support level one sections (h1)",
action="store_true")
args = parser.parse_args()
# a probably incomplete version to generate an anchor from a section name
def get_anchor(s):
s = s.replace("`","")
s = s.replace("(","")
s = s.replace(")","")
s = s.replace(".","")
s = s.replace("#","")
s = s.replace(":","")
s = s.replace(",","")
s = s.replace(";","")
if args.codebase:
s = s.replace("/","-")
else:
s = s.replace("/","")
s = s.replace("<","")
s = s.replace(">","")
s = s.replace("+","")
s = s.replace("=","")
s = s.replace("?","")
s = s.replace("@","")
s = s.lstrip(" ")
s = s.rstrip("\n")
s = s.rstrip(" ")
s = re.sub(r'\s+','-',s)
if not args.codebase:
s = s.lower()
if args.codebase:
s = s.replace("'","-and-39-")
return "#"+s
# indices the nesting level (first level allowed is ##)
def get_level(s):
m = re.search('^(#+)\s', s)
if m:
return len(m.group(1))
else:
return 0
def get_name(s):
m = re.search('^#+\s+(.*)\s*$', s)
if m:
return m.group(1)
else:
return "ERROR: Section name extraction"
#generate the entry for one section
def get_toc_entry(s):
name = get_name(s)
if args.h1:
level = get_level(s)-1
else:
level = get_level(s)-2
anchor = get_anchor(s)
if level<0:
return "ERROR: h1 sections are not allowed"
res="* ["+name+"]("+anchor+")"
for i in range(0,level):
res=" "+res
return res
#now the main
input = args.filename
f = codecs.open(input, 'r', encoding='utf-8')
if not f:
print("Cannot open "+input+"\n")
exit()
#look for <!--TOC--> the begin of the file
line=f.readline()
if line.find("<!--TOC-->")==-1:
exit()
#skip current TOC
line=f.readline()
while line and line.find("<!--TOC-->")==-1:
line=f.readline()
if not line:
exit()
buffer=""
TOC="<!--TOC-->\n\n# Table of Contents\n"
verbatim_mode=False # to ignore verbatim mode while looking for sections
TOC_empty=True
for line in f.readlines():
buffer+=line
if verbatim_mode:
if line[:3]=="```":
verbatim_mode=False
else:
if line[:3]=="```":
verbatim_mode=True
else:
if line[0]=="#":
TOC+=(get_toc_entry(line)+"\n")
TOC_empty=False
TOC+="\n<!--TOC-->\n"
if not TOC_empty:
f.close()
f = codecs.open(input, 'w', encoding='utf-8')
f.write(TOC)
f.write(buffer)