* ext.tex: documentation for extending, reference counts, and embedding

(formerly ../misc/{EXTENDING,REFCNT,EMBEDDING}).  Also affects Makefile.
* text2latex.py: script to do part of the conversion from an plain ASCI
  text file (in my particular style) to LaTeX.
  (Chapter/section/subsection headers, and verbatim sections.)
* partparse.py, texipre.dat, fix.el, Makefile: Minor cleanup of latex ->
  info conversion process (at least it works again, and with less
  debugging output).  Removed fix.sh.
* lib1.tex (section{Built-in Functions}): adapt description of str() and
  repr() to new situation.
* lib3.tex (Module os): added exec*() variants.
* lib3.tex (Module posix): added execve().
* lib2.tex (Module array): documented reality; remove typecode and
itemsize, add byteswap, rename read/write to fromfile/tofile, and
re-alphabetized.
* lib1.tex (Built-in Functions): renamed bagof() to filter().

Doc/tools/text2latex.py

@@ -0,0 +1,49 @@
+import os
+import sys
+import regex
+import string
+import getopt
+
+def main():
+	process(sys.stdin, sys.stdout)
+
+dashes = regex.compile('^-+[ \t]*$')
+equals = regex.compile('^=+[ \t]*$')
+stars = regex.compile('^\*+[ \t]*$')
+blank = regex.compile('^[ \t]*$')
+indented = regex.compile('^\( *\t\|        \)[ \t]*[^ \t]')
+
+def process(fi, fo):
+	inverbatim = 0
+	line = '\n'
+	nextline = fi.readline()
+	while nextline:
+		prevline = line
+		line = nextline
+		nextline = fi.readline()
+		fmt = None
+		if dashes.match(nextline) >= 0:
+			fmt = '\\subsection{%s}\n'
+		elif equals.match(nextline) >= 0:
+			fmt = '\\section{%s}\n'
+		elif stars.match(nextline) >= 0:
+			fmt = '\\chapter{%s}\n'
+		if fmt:
+			nextline = '\n'
+			line =  fmt % string.strip(line)
+		elif inverbatim:
+			if blank.match(line) >= 0 and \
+				  indented.match(nextline) < 0:
+				inverbatim = 0
+				fo.write('\\end{verbatim}\n')
+		else:
+			if indented.match(line) >= 0 and \
+				  blank.match(prevline) >= 0:
+				inverbatim = 1
+				fo.write('\\begin{verbatim}\n')
+		if inverbatim:
+			line = string.expandtabs(line, 4)
+		fo.write(line)
+
+#main()
+process(open('ext.tex', 'r'), sys.stdout)