asciigoat's core library https://asciigoat.org/core
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package lexer
import (
"strings"
"unicode"
)
// NewIsNot generates a rune condition checker that reverses the
// decision of the given checker.
func NewIsNot(cond func(rune) bool) func(rune) bool {
return func(r rune) bool {
return !cond(r)
}
}
// NewIsIn generates a rune condition checker that accepts runes
// contained on the provided string
func NewIsIn(s string) func(rune) bool {
return func(r rune) bool {
return strings.ContainsRune(s, r)
}
}
// NewIsInRunes generates a rune condition checker that accepts
// the runes specified
func NewIsInRunes(s ...rune) func(rune) bool {
return NewIsIn(string(s))
}
// NewIsOneOf generates a run condition checker that accepts runes
// accepted by any of the given checkers
func NewIsOneOf(s ...func(rune) bool) func(rune) bool {
return func(r rune) bool {
for _, cond := range s {
if cond(r) {
return true
}
}
return false
}
}
// IsSpace reports whether the rune is a space character as
// defined by Unicode's White Space property
func IsSpace(r rune) bool {
return unicode.IsSpace(r)
}