How to use the parsita.reg function in parsita
To help you get started, we’ve selected a few parsita examples, based on popular ways it is used in public projects.
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drhagen / parsita / examples / positioned.py View on Github 
@dataclass
class Variable:
name: str
start: int
length: int
@dataclass
class Plus:
first: Variable
second: Variable
class PlusParsers(TextParsers):
variable = positioned(reg('[A-Za-z][A-Za-z0-9_]*') > UnfinishedVariable)
plus = variable & '+' >> variable > splat(Plus)
if __name__ == '__main__':
print(PlusParsers.plus.parse('abc + xyz').or_die())
