#!/usr/local/bin/python
# -*- coding: utf-8 -*-
import elementtree.ElementTree as ET
import os, sys
sys.path.append(os.getcwd().split('slps')[0] + 'slps/shared/python')
import BGF
singles = (BGF.Empty(), BGF.Epsilon(), BGF.Any())
def ntd(x, d):
nt = BGF.Nonterminal()
nt.setName(x)
w = d()
w.setExpr(BGF.Expression(nt))
return BGF.Expression(w)
if __name__ == "__main__":
g = BGF.Grammar()
prod = 400
term = 150
for i in range(0, prod):
p = BGF.Production()
p.setNT('nt' + str(i))
p.setExpr(BGF.Expression(singles[i % 3]))
g.addProd(p)
p = BGF.Production()
p.setNT('nt' + str(i))
a = ntd('nt' + str((i + 1) % prod), BGF.Plus)
if alt[cx][-1] == '+':
sym = BGF.Plus()
sym.setExpr(BGF.Nonterminal())
sym.data.setName(alt[cx][:-1])
elif alt[cx][-1] == '*':
sym = BGF.Star()
sym.setExpr(BGF.Nonterminal())
sym.data.setName(alt[cx][:-1])
elif alt[cx][-1] == '?':
sym = BGF.Optional()
sym.setExpr(BGF.Nonterminal())
sym.data.setName(alt[cx][:-1])
elif alt[cx] in layouts:
print 'Occurrence of layout nonterminal', alt[
cx], 'is disregarded.'
sym = BGF.Epsilon()
else:
sym = BGF.Nonterminal()
sym.setName(alt[cx])
cx += 1
continue
if alt[cx] == 'lex':
cx += 1
continue
if alt[cx][0].islower():
typ = sym
sym = BGF.Selectable()
sym.setExpr(typ)
sym.setName(alt[cx])
cx += 1
continue
