NNParser -- a parser that accepts (and returns) a natural number, one character at a time

Description

i1 : NNParser "1"

o1 = Parser[${prefix}/share/Macaulay2/Parsing.m2:152:37-152:103]

o1 : Parser

i2 : oo null

o2 = 1

i3 : ooo "2"

o3 = Parser[${prefix}/share/Macaulay2/Parsing.m2:152:37-152:103]

o3 : Parser

i4 : oo null

o4 = 12

i5 : ooo "3"

o5 = Parser[${prefix}/share/Macaulay2/Parsing.m2:152:37-152:103]

o5 : Parser

i6 : oo null

o6 = 123

i7 : (NNParser : charAnalyzer) "123456789123456789123456789"

o7 = 123456789123456789123456789

i8 : class oo

o8 = ZZ

o8 : Ring

Code

../../../../Macaulay2/packages/Parsing.m2:153:27-153:58: --source code:
          new Parser from (c -> if digit#?c then f digit#c)
| symbol  class            value                                                    location of symbol
| ------  -----            -----                                                    ------------------                                     
| f       FunctionClosure  FunctionClosure[../../../../Macaulay2/packages/Parsing.  ../../../../Macaulay2/packages/Parsing.m2:152:10-152:11

For the programmer

The object NNParser is a parser.

The source of this document is in Parsing.m2:467:0.

NNParser -- a parser that accepts (and returns) a natural number, one character at a time

Description

Code

See also

For the programmer