On Mon, Nov 1, 2010 at 8:56 PM, Vincent van Ravesteijn <v...@lyx.org> wrote:
> A slightly simpler problem is to allow users to modify the generated
> preamble. Sort of the same problem, but simpler and useful as well.
I use the attached lyxpp.py.
To use
0) Put lyxpp.py in the path.
1) Set the LaTeX (pdflatex) -> PDF (pdflatex) converter (in
Preferences->Converters) to be something like:
lyxpp.py pdflatex $$i
1b) If you use postscript/dvi also set LaTeX (plain) -> DVI to be
lyxpp.py latex $$i
2) Cut-and-paste the generated preamble into a ERT at the top of the
document (To get the generated preamble you may want to use
View->Source)
3) Prefix every line of the preamble with %PREAM
4) Edit the preamble as required.
--
John C. McCabe-Dansted
#!/usr/bin/env python
import sys
import os
import subprocess
import re
print "PWD: ",
os.system("pwd")
if len(sys.argv)<2:
print 'Usage: '+sys.argv[0]+' COMMAND PARAMS'
print """
Pre-processes the first tex file (parameter not starting with '-')
and replaces the preamble with the set of lines starting with:
%PREAM
If no such lines exist it will not modify the file.
It will then run COMMAND with PARAMS
It is recommended that you put the %PREAM lines near the top of
your tex file so that the line numbers of errors are meaningful
This program is useful when you want to have precise control
over the preamble of a tex file within LyX. I copy the LyX
generated preamble into an ERT box, prefix all the lines with
"%PREAM " and then remove the lines I don\'t need
I configure LyX to use this script by going to
Tools->Preferences->LyX.
In both "latex(plain) -> DVI" and "latex(pdflatex) -> DVI"
prefix latex and pdflatex with """+sys.argv[0]+"""
finally click Modify and Save."""
os._exit(1)
else:
print len(sys.argv)
print 'Will run COMMAND: '+sys.argv[1]
#testfile=open('/tmp/t','w')
#for p in sys.argv:
# sys.stderr.write(p + ' ')
# testfile.write(p + ' ')
#testfile.write('\n')
def swap (file1,file2):
s=file1+'._swptmp'
os.rename(file1,s)
os.rename(file2,file1)
os.rename(s,file2)
for f in sys.argv[2:]:
if not f.startswith('-'):
infname=f
os.putenv('TEX_NAME',infname)
infile=open(infname,'r')
outfname=infname+'._alt'
outfile=open(outfname,'w')
lines=infile.readlines()
pream=[]
i=0
indocument=False
while i < len(lines):
L=lines[i]
if L.startswith('%PREAM '):
L=L[7:]
del lines[i]
pream.append(L)
else:
if L.startswith(r'\begin{document}'):
indocument=True
if not indocument:
lines[i]='\n'
i=i+1
if len(pream) > 0:
#file has custom preamble
outfile.writelines(pream)
outfile.writelines(lines)
outfile.close()
swap(infname,outfname)
retcode=subprocess.call(sys.argv[1:])
swap(infname,outfname)
else:
#file does not have custom preamble... leave it alone.
retcode=subprocess.call(sys.argv[1:])
os._exit(retcode) # retcodes can be negative, so this isn't quite what we want... but close enough.
