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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

../../../../Macaulay2/packages/Parsing.m2:94:50-94:123: --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           Parser[../../../../Macaulay2/packages/Parsing.m2:102:5.  ../../../../Macaulay2/packages/Parsing.m2:94:26-94:27
| fun     FunctionClosure  FunctionClosure[../../../../Macaulay2/packages/Parsing.  ../../../../Macaulay2/packages/Parsing.m2:94:22-94:25

See also

For the programmer

The object QQParser is a parser.

The source of this document is in Parsing.m2:488:0.