def is_LaTeX(flist,env,abspath):
    """Scan a file list to decide if it's TeX- or LaTeX-flavored."""

    # We need to scan files that are included in case the
    # \documentclass command is in them.

    # get path list from both env['TEXINPUTS'] and env['ENV']['TEXINPUTS']
    savedpath = modify_env_var(env, 'TEXINPUTS', abspath)
    paths = env['ENV']['TEXINPUTS']
    if SCons.Util.is_List(paths):
        pass
    else:
        # Split at os.pathsep to convert into absolute path
        paths = paths.split(os.pathsep)

    # now that we have the path list restore the env
    if savedpath is _null:
        try:
            del env['ENV']['TEXINPUTS']
        except KeyError:
            pass # was never set
    else:
        env['ENV']['TEXINPUTS'] = savedpath
    if Verbose:
        print "is_LaTeX search path ",paths
        print "files to search :",flist

    # Now that we have the search path and file list, check each one
    for f in flist:
        if Verbose:
            print " checking for Latex source ",str(f)

        content = f.get_text_contents()
        if LaTeX_re.search(content):
            if Verbose:
                print "file %s is a LaTeX file" % str(f)
            return 1
        if Verbose:
            print str(f) % "file %s is not a LaTeX file"

        # now find included files
        inc_files = [ ]
        inc_files.extend( include_re.findall(content) )
        if Verbose:
            print "files included by '%s': "%str(f),inc_files
        # inc_files is list of file names as given. need to find them
        # using TEXINPUTS paths.

        # search the included files
        for src in inc_files:
            srcNode = FindFile(src,['.tex','.ltx','.latex'],paths,env,requireExt=False)
            # make this a list since is_LaTeX takes a list.
            fileList = [srcNode,]
            if Verbose:
                print "FindFile found ",srcNode
            if srcNode is not None:
                file_test = is_LaTeX(fileList, env, abspath)

            # return on first file that finds latex is needed.
            if file_test:
                return file_test

        if Verbose:
            print " done scanning ",str(f)

    return 0
dataset/ETHPy150Open kayhayen/Nuitka/nuitka/build/inline_copy/lib/scons-2.3.2/SCons/Tool/tex.py/is_LaTeX/swapped operands of `%`