mirror of
https://github.com/google/brotli.git
synced 2024-11-26 13:20:06 +00:00
707b78ae26
Add the .nroff source file and a python script to generate the .txt version (requires the nroff command).
93 lines
2.1 KiB
Python
Executable File
93 lines
2.1 KiB
Python
Executable File
#!/usr/bin/python
|
|
#
|
|
# Takes an .nroff source file and prints a text file in RFC format.
|
|
#
|
|
# Usage: rfc-format.py <source file>
|
|
|
|
import re
|
|
import sys
|
|
from subprocess import Popen, PIPE
|
|
|
|
|
|
def Readfile(fn):
|
|
f = open(fn, "r")
|
|
return f.read()
|
|
|
|
|
|
def FixNroffOutput(buf):
|
|
p = re.compile(r'(.*)FORMFEED(\[Page\s+\d+\])$')
|
|
strip_empty = False
|
|
out = ""
|
|
for line in buf.split("\n"):
|
|
line = line.replace("\xe2\x80\x99", "'")
|
|
line = line.replace("\xe2\x80\x90", "-")
|
|
for i in range(len(line)):
|
|
if ord(line[i]) > 128:
|
|
print >>sys.stderr, "Invalid character %d\n" % ord(line[i])
|
|
m = p.search(line)
|
|
if strip_empty and len(line) == 0:
|
|
continue
|
|
if m:
|
|
out += p.sub(r'\1 \2\n\f', line)
|
|
out += "\n"
|
|
strip_empty = True
|
|
else:
|
|
out += "%s\n" % line
|
|
strip_empty = False
|
|
return out.rstrip("\n")
|
|
|
|
|
|
def Nroff(buf):
|
|
p = Popen(["nroff", "-ms"], stdin=PIPE, stdout=PIPE)
|
|
out, err = p.communicate(input=buf)
|
|
return FixNroffOutput(out)
|
|
|
|
|
|
def FormatTocLine(section, title, page):
|
|
line = ""
|
|
level = 1
|
|
if section:
|
|
level = section.count(".")
|
|
for i in range(level):
|
|
line += " "
|
|
if section:
|
|
line += "%s " % section
|
|
line += "%s " % title
|
|
pagenum = "%d" % page
|
|
nspace = 72 - len(line) - len(pagenum)
|
|
if nspace % 2:
|
|
line += " "
|
|
for i in range(nspace / 2):
|
|
line += ". "
|
|
line += "%d\n" % page
|
|
return line
|
|
|
|
|
|
def CreateToc(buf):
|
|
p1 = re.compile(r'^((\d+\.)+)\s+(.*)$')
|
|
p2 = re.compile(r'^(Appendix [A-Z].)\s+(.*)$')
|
|
p3 = re.compile(r'\[Page (\d+)\]$')
|
|
found = 0
|
|
page = 1
|
|
out = ""
|
|
for line in buf.split("\n"):
|
|
m1 = p1.search(line)
|
|
m2 = p2.search(line)
|
|
m3 = p3.search(line)
|
|
if m1:
|
|
out += FormatTocLine(m1.group(1), m1.group(3), page)
|
|
elif m2:
|
|
out += FormatTocLine(m2.group(1), m2.group(2), page)
|
|
elif line.startswith("Authors"):
|
|
out += FormatTocLine(None, line, page)
|
|
elif m3:
|
|
page = int(m3.group(1)) + 1
|
|
return out
|
|
|
|
|
|
src = Readfile(sys.argv[1])
|
|
out = Nroff(src)
|
|
toc = CreateToc(out)
|
|
src = src.replace("INSERT_TOC_HERE", toc)
|
|
print Nroff(src)
|