return ps[0].expr.wrapped.data
print '--->', ps[0].expr.wrapped.__class__.__name__
return None
if __name__ == "__main__":
if len(sys.argv) != 3:
print 'This generator proposes to remove all chain productions and inline all once-used nonterminal symbols.'
print 'Usage:'
print ' '+sys.argv[0]+' <bgf-input> <xbgf-output>'
sys.exit(1)
bgf = BGF.Grammar()
bgf.parse(sys.argv[1])
xbgf = open(sys.argv[2],'w')
xbgf.write('<?xml version="1.0" encoding="UTF-8"?><xbgf:sequence xmlns:xbgf="http://planet-sl.org/xbgf" xmlns:bgf="http://planet-sl.org/bgf">\n')
chains = {}
nts = metrics.var(bgf)
for n in nts:
ps = bgf.getProdsOfN(n)
if len(ps) == 1 and ps[0].expr.wrapped.__class__.__name__ == 'Nonterminal':
chains[ps[0].expr.wrapped.data] = n
refers1 = {}
refers2 = {}
for p in bgf.prods:
for n in p.expr.wrapped.getXml().findall('.//nonterminal'):
if n.text not in refers1.keys():
refers1[n.text] = [p.nt]
else:
refers1[n.text].append(p.nt)
if p.nt not in refers2.keys():
refers2[p.nt] = [n.text]
else:
if __name__ == "__main__":
if len(sys.argv) != 3:
print 'This generator proposes to remove all chain productions and inline all once-used nonterminal symbols.'
print 'Usage:'
print ' ' + sys.argv[0] + ' <bgf-input> <xbgf-output>'
sys.exit(1)
bgf = BGF.Grammar()
bgf.parse(sys.argv[1])
xbgf = open(sys.argv[2], 'w')
xbgf.write(
'<?xml version="1.0" encoding="UTF-8"?><xbgf:sequence xmlns:xbgf="http://planet-sl.org/xbgf" xmlns:bgf="http://planet-sl.org/bgf">\n'
)
chains = {}
nts = metrics.var(bgf)
for n in nts:
ps = bgf.getProdsOfN(n)
if len(ps) == 1 and ps[
0].expr.wrapped.__class__.__name__ == 'Nonterminal':
chains[ps[0].expr.wrapped.data] = n
refers1 = {}
refers2 = {}
for p in bgf.prods:
for n in p.expr.wrapped.getXml().findall('.//nonterminal'):
if n.text not in refers1.keys():
refers1[n.text] = [p.nt]
else:
refers1[n.text].append(p.nt)
if p.nt not in refers2.keys():
refers2[p.nt] = [n.text]
def _getVarList(self):
if not self.cache.varlist:
self.cache.varlist = metrics.var(self.grammar)
return self.cache.varlist
def _getVarList(self): if not self.cache.varlist: self.cache.varlist = metrics.var(self.grammar) return self.cache.varlist
