50 lines
1.2 KiB
Python
50 lines
1.2 KiB
Python
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import jsgf
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from os import listdir
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from os.path import isfile, join
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mypath = "./grammar/"
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onlyfiles = [f for f in listdir(mypath) if isfile(join(mypath, f))]
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grammars = []
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for grammarFile in onlyfiles:
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grammar = jsgf.parse_grammar_file(mypath + grammarFile)
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grammars.append(grammar)
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class Ajn:
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def __init__(self, grammars = None):
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self.grammars = grammars
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def get_dialog_act(rule):
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slots = []
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get_slots(rule.expansion, slots)
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return {'act': rule.grammar.name, 'slots': slots}
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def get_slots(expansion, slots):
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if expansion.tag != '':
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slots.append((expansion.tag, expansion.current_match))
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return
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for child in expansion.children:
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get_slots(child, slots)
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if not expansion.children and isinstance(expansion, jsgf.NamedRuleRef):
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get_slots(expansion.referenced_rule.expansion, slots)
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def nlu(utterance):
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matched = None
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for grammar in grammars:
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matched = grammar.find_matching_rules(utterance)
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if matched:
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break
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if matched:
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return get_dialog_act(matched[0])
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else:
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return {'act': 'null', 'slots': []}
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ajn = Ajn()
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