shlex.go
func newDefaultClassifier() tokenClassifier {
	t := tokenClassifier{}
	t.addRuneClass(spaceRunes, spaceRuneClass)
	t.addRuneClass(escapingQuoteRunes, escapingQuoteRuneClass)
	t.addRuneClass(nonEscapingQuoteRunes, nonEscapingQuoteRuneClass)
	t.addRuneClass(escapeRunes, escapeRuneClass)
	t.addRuneClass(commentRunes, commentRuneClass)
	return t
}
func newDefaultClassifier() tokenClassifier {
	t := tokenClassifier{}
	t.addRuneClass(spaceRunes, spaceRuneClass)
	t.addRuneClass(escapingQuoteRunes, escapingQuoteRuneClass)
	t.addRuneClass(nonEscapingQuoteRunes, nonEscapingQuoteRuneClass)
	t.addRuneClass(escapeRunes, escapeRuneClass)
	t.addRuneClass(commentRunes, commentRuneClass)
	return t
}
// newDefaultClassifier creates a new classifier for ASCII characters.