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Parsing > Parser > QQParser

QQParser -- a parser that accepts (and returns) a rational number, one character at a time

Description

The denominator must be present.

i1 : (QQParser : charAnalyzer) "-123456789/54321"

       41152263
o1 = - --------
         18107

o1 : QQ

Code

/usr/share/Macaulay2/Parsing.m2:94:53-94:122: --source code:
Function % Parser := (fun,p) -> new Parser from ( c -> if (p' := p c) =!= null then if c === null then fun p' else fun % p' )
| symbol   class              value location of symbol
| ------   -----              ----- ------------------                                           
| p      : Parser          -- ...   /usr/share/Macaulay2/Parsing.m2:94:27-94:28
| fun    : FunctionClosure -- ...   /usr/share/Macaulay2/Parsing.m2:94:23-94:26

See also

For the programmer

The object QQParser is a parser.