CODEWITHSUNDEEP
pythonparsingpyparsing
Inkane
Inkane

Reputation: 1500

Something like optionalQuotedString in pyparsing?

In my parser I have multiple occurrences of 

expression = quotedString(pattern) | Word(pattern)

and I was wondering if there is some built-in class I've missed for that or if I have define it myself. In case of the second, what would the best option?

Upvotes: 1

Views: 240

Answers (2)

Oliver Hulett
Oliver Hulett

Reputation: 11

Old thread I know, but you can reuse your expressions in other expressions.

optionalQuotedString = QuotedString(pattern) | Word(pattern)

expression1 = optionalQuotedString
expression2 = Literal('>') + optionalQuotedString

Might be a little neater than a function, but does the same thing.

Upvotes: 1

jfs
jfs

Reputation: 414865

Do you mean something like this:

def quotedStringOrWord(pattern):
    return quotedString(pattern) | Word(pattern)

Upvotes: 2

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