#!/usr/bin/env python
"""
collectinput - Collects all files that are included to a main Latex document
               with \input or \include commands. These commands must be
               in separate lines.

Copyright 1999 Pearu Peterson all rights reserved,
Pearu Peterson <pearu@ioc.ee>          
Permission to use, modify, and distribute this software is given under the
terms of the LGPL.  See http://www.fsf.org

NO WARRANTY IS EXPRESSED OR IMPLIED.  USE AT YOUR OWN RISK.

Pearu Peterson

Usage:
    collectinput <infile> <outfile>
    collectinput <infile>           # <outfile>=inputless_<infile>
    collectinput                    # in and out are stdin and stdout
"""

__version__ = "0.0"

stdoutflag=0
import sys,os,string,fileinput,re,commands

try: fn=sys.argv[2]
except:
    try: fn='inputless_'+sys.argv[1]
    except: stdoutflag=1
try: fi=sys.argv[1]
except: fi=()
if not stdoutflag:
    sys.stdout=open(fn,'w')

nonverb=r'[\w\s\\&=\^\*\.\{\(\)\[\?\+\$/]*(?!\\verb.)'
input=re.compile(nonverb+r'\\(input|include)\*?\s*\{?.*}?')
comment=re.compile(r'[^%]*%')

for l in fileinput.input(fi):
    l=l[:-1]
    l1=''
    if comment.match(l):
        m=comment.match(l)
        l1=l[m.end()-1:]
        l=l[:m.end()-1]
    m=input.match(l)
    if m:
        l=string.strip(l)
        if l[-1]=='}': l=l[:-1]
        i=m.end()-2
        sys.stderr.write('>>>>>>')
        while i>-1 and (l[i] not in [' ','{']): i=i-1
        if i>-1:
            fn=l[i+1:]
            try: f=open(fn,'r'); flag=1; f.close()
            except:
                try: f=open(fn+'.tex','r'); flag=1;fn=fn+'.tex'; f.close()
                except: flag=0
            if flag==0:
                sys.stderr.write('Could not open a file: '+fn+'\n')
                print l+l1
                continue
            elif flag==1:
                sys.stderr.write(fn+'\n')
                print '%%%%% Begin of '+fn
                print commands.getoutput(sys.argv[0]+' < '+fn)
                print '%%%%% End of '+fn
        else:
            sys.stderr.write('Could not extract a file name from: '+l)
            print l+l1
    else:
        print l+l1
sys.stdout.close()