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Dir : ~/opt/gsutil/third_party/pyparsing/examples/

View File Name : searchParserAppDemo.py

from searchparser import SearchQueryParser

products = [
    "grape juice",
    "grape jelly",
    "orange juice",
    "orange jujubees",
    "strawberry jam",
    "prune juice",
    "prune butter",
    "orange marmalade",
    "grapefruit juice",
]


class FruitSearchParser(SearchQueryParser):
    def GetWord(self, word):
        return {p for p in products if p.startswith(word + " ")}

    def GetWordWildcard(self, word):
        return {p for p in products if p.startswith(word[:-1])}

    def GetQuotes(self, search_string, tmp_result):
        result = set()
        # I have no idea how to use this feature...
        return result

    def GetNot(self, not_set):
        return set(products) - not_set


parser = FruitSearchParser()

tests = """\
    grape or orange
    grape*
    not(grape*)
    prune and grape""".splitlines()

for t in tests:
    print(t.strip())
    print(parser.Parse(t))
    print("")