#!/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
if __name__ == "__main__":
g = BGF.Grammar()
g.addRoot('foo')
p = BGF.Production()
p.setNT('foo')
t = BGF.Terminal()
t.setName('bar')
p.setExpr(BGF.Expression(t))
g.addProd(p)
ET.ElementTree(g.getXml()).write('baby.bgf')
print 'Lexical nonterminal', nt, 'is disregarded'
continue
if nt in layouts:
print 'Layout-related nonterminal', nt, 'is disregarded'
continue
for alt in grammar[nt]:
while alt[0][0] == '@':
print 'Disregarding annotation', alt[0]
alt = alt[1:]
if prevline:
# dead code yet
prevline.append('|')
prevline.extend(alt)
alt = prevline[:]
prevline = []
prod = BGF.Production()
prod.setNT(nt)
while alt and alt[0] in ('bracket', 'left', 'right', 'non-assoc',
'lex', '(', ')'):
print 'Skipped a modifier', alt[0], 'at', nt
if alt[0] == 'lex':
alt = []
else:
alt = alt[1:]
print 'left:', alt
if not alt:
continue
while len(alt) > 0 and alt[-1] in (';', ''):
alt = alt[:-1]
while len(alt) > 0 and alt[0] == '':
alt = alt[1:]
