#!/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 NumPy License

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
import fileinput
import re
import 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=l.strip()
        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()