lib/ply/yacc.py

1942     def __init__(self,grammar,method='LALR',log=None):  argument
1946         self.grammar = grammar
1957         self.lr_productions  = grammar.Productions    # Copy of grammar Production array
1972         self.grammar.build_lritems()
1973         self.grammar.compute_first()
1974         self.grammar.compute_follow()
2040         C = [ self.lr0_closure([self.grammar.Productions[0].lr_next]) ]
2099            for p in self.grammar.Productions[1:]:
2128                       if t[1] in self.grammar.Nonterminals:
2151                if a in self.grammar.Terminals:
2155         if state == 0 and N == self.grammar.Productions[0].prod[0]:
2243                                 if p.prod[li] in self.grammar.Terminals: break      # No forget it
2365         Productions = self.grammar.Productions
2366         Precedence  = self.grammar.Precedence
2409                                 laheads = self.grammar.Follow[p.name]
2460                         if a in self.grammar.Terminals:
2526                     if s in self.grammar.Nonterminals:
2725     grammar = []
2749             grammar.append((file,dline,prodname,syms))
2755     return grammar
2771         self.grammar    = []
2981         grammar = []
3006                         grammar.append((name, g))
3034         self.grammar = grammar
3114     grammar = Grammar(pinfo.tokens)
3119             grammar.set_precedence(term,assoc,level)
3125     for funcname, gram in pinfo.grammar:
3128             grammar.add_production(prodname,syms,funcname,file,line)
3137             grammar.set_start(pinfo.start)
3139             grammar.set_start(start)
3149     undefined_symbols = grammar.undefined_symbols()
3154     unused_terminals = grammar.unused_terminals()
3168         for n,p in enumerate(grammar.Productions):
3172     unused_rules = grammar.unused_rules()
3190         terms = list(grammar.Terminals)
3193             debuglog.info("%-20s : %s", term, " ".join([str(s) for s in grammar.Terminals[term]]))
3198         nonterms = list(grammar.Nonterminals)
3201 …    debuglog.info("%-20s : %s", nonterm, " ".join([str(s) for s in grammar.Nonterminals[nonterm]]))
3205         unreachable = grammar.find_unreachable()
3209         infinite = grammar.infinite_cycles()
3214     unused_prec = grammar.unused_precedence()
3226     lr = LRGeneratedTable(grammar,method,debuglog)