package eol import ( "fmt" "sourcecode.social/reiver/go-opt" "sourcecode.social/reiver/go-eol/cr" "sourcecode.social/reiver/go-eol/lf" "sourcecode.social/reiver/go-eol/ls" "sourcecode.social/reiver/go-eol/nel" "sourcecode.social/reiver/go-eol/vt" ) var _ error = internalNotFoundError{} type internalNotFoundError struct{ expected rune actual rune circumstance internalCircumstance } func errNotFound(circumstance internalCircumstance, expected rune, actual rune) error { return internalNotFoundError { expected:expected, actual:actual, circumstance:circumstance, } } func (receiver internalNotFoundError) Error() string { var buffer [256]byte var p []byte = buffer[0:0] var expected rune = receiver.expected var actual rune = receiver.actual var characterNumber uint64 = receiver.circumstance.CharacterNumber() var eolSequence opt.Optional[string] = receiver.circumstance.EOLSequence() switch expected { case lf.Rune: var s string = fmt.Sprintf(`eol: line-feed (LF) character ('\n') (U+000A) not found for end-of-line sequence character №%d — instead found %q (%U)`, characterNumber, actual, actual) eolSequence.WhenSomething(func(sequence string){ s = fmt.Sprintf(`eol: line-feed (LF) character ('\n') (U+000A) not found for end-of-line sequence %q character №%d — instead found %q (%U)`, sequence, characterNumber, actual, actual) }) p = append(p, s...) case vt.Rune: var s string = fmt.Sprintf(`eol: vertical-tab (VT) character ('\v') (U+000B) not found for end-of-line sequence character №%d — instead found %q (%U)`, characterNumber, actual, actual) eolSequence.WhenSomething(func(sequence string){ s = fmt.Sprintf(`eol: vertical-tab (VT) character ('\v') (U+000B) not found for end-of-line sequence %q character №%d — instead found %q (%U)`, sequence, characterNumber, actual, actual) }) p = append(p, s...) case cr.Rune: var s string = fmt.Sprintf(`eol: carriage-return (CR) character ('\r') (U+000D) not found for end-of-line sequence character №%d — instead found %q (%U)`, characterNumber, actual, actual) eolSequence.WhenSomething(func(sequence string){ s = fmt.Sprintf(`eol: carriage-return (CR) character ('\r') (U+000D) not found for end-of-line sequence %q character №%d — instead found %q (%U)`, sequence, characterNumber, actual, actual) }) p = append(p, s...) case nel.Rune: var s string = fmt.Sprintf(`eol: next-line (NEL) character (U+0085) not found for end-of-line sequence character №%d — instead found %q (%U)`, characterNumber, actual, actual) eolSequence.WhenSomething(func(sequence string){ s = fmt.Sprintf(`eol: next-line (NEL) character (U+0085) not found for end-of-line sequence %q character №%d — instead found %q (%U)`, sequence, characterNumber, actual, actual) }) p = append(p, s...) case ls.Rune: var s string = fmt.Sprintf(`eol: line-separator (LS) character (U+2028) not found for end-of-line sequence character №%d — instead found %q (%U)`, characterNumber, actual, actual) eolSequence.WhenSomething(func(sequence string){ s = fmt.Sprintf(`eol: line-separator (LS) character (U+2028) not found for end-of-line sequence %q character №%d — instead found %q (%U)`, sequence, characterNumber, actual, actual) }) p = append(p, s...) default: var s string = fmt.Sprintf(`eol: %q character (%U) not found for sequence character №%d — instead found %q (%U)`, expected, expected, characterNumber, actual, actual) eolSequence.WhenSomething(func(sequence string){ s = fmt.Sprintf(`eol: %q character (%U) not found for sequence %q character №%d — instead found %q (%U)`, expected, expected, sequence, characterNumber, actual, actual) }) p = append(p, s...) } return string(p) } func (receiver internalNotFoundError) Actual() rune { return receiver.actual } func (receiver internalNotFoundError) Expected() rune { return receiver.expected }