constParser -- produce a parser that accepts a fixed string, one character at a time

Usage:

constParser s
Inputs:
- s, a string
Outputs:
- a parser, a parser that accepts (and returns) the string s, one character at a time

Description

i1 : constParser "abc"

o1 = Parser[${prefix}/share/Macaulay2/Parsing.m2:148:48-148:149]

o1 : Parser

i2 : oo "a"

o2 = Parser[${prefix}/share/Macaulay2/Parsing.m2:148:48-148:149]

o2 : Parser

i3 : oo "a"

i4 : ooo "b"

o4 = Parser[${prefix}/share/Macaulay2/Parsing.m2:148:48-148:149]

o4 : Parser

i5 : oo "c"

o5 = Parser[${prefix}/share/Macaulay2/Parsing.m2:148:48-148:149]

o5 : Parser

i6 : oo null

o6 = abc

i7 : (constParser "abc" : charAnalyzer) "abc"

o7 = abc

The source of this document is in Parsing.m2:437:0.