HISTFILE = '.jep'

import traceback

import jep

from jep import *

hasReadline = False

try:

    import readline

    try:

        hasReadline = True

        import os

        HISTFILE = '%s/.jep' % (os.environ['HOME'])

        if(not os.access(HISTFILE, os.W_OK)):

            os.open(HISTFILE, os.O_CREAT)

        readline.read_history_file(HISTFILE)

    except:

        traceback.print_exc()

        pass

except:

    print """

    No readline available.

    You may want to set the LD_PRELOAD environment variable, see the

    README file for details.

    i.e.: export LD_PRELOAD=/usr/lib/libpython2.3.so.1.0

    If your platform really doesn't have readline, try this:

    http://newcenturycomputers.net/projects/readline.html """

PS1  = ">>> "

PS2  = "... "

def prompt(jep):

    global hasReadline

    try:

        line = None

        while(1):

            ran = True

            try:

                ran = jep.eval(line)

            except:

                traceback.print_exc()

            try:

                if(ran):

                    line = raw_input(PS1)

                else:

                    line = raw_input(PS2)

            except:

                break

    finally:

        if(hasReadline):

            readline.write_history_file(HISTFILE)

if(__name__ == '__main__'):

    Jep = findClass('jep.Jep')

    jep = Jep(True)

    # Pass argv to interactive prompt. We can't pass a Python object,

    # but we can make a new one.

    jep.eval("argv = %s" % argv)

    try:

        prompt(jep)

    except:

        traceback.print_exc()

    print ''

    jep.close()