1 files changed, 10 insertions, 10 deletions
diff --git a/internal/jsonparse/parse.go b/internal/jsonparse/parse.go
index 6432d75..c641f1b 100644
--- a/internal/jsonparse/parse.go
+++ b/internal/jsonparse/parse.go
@@ -619,7 +619,7 @@ func (par *Parser) HandleRune(c rune) (RuneType, error) {
 			par.popState()
 			return RuneTypeObjectEnd, nil
 		default:
-			return RuneTypeError, fmt.Errorf("object: unexpected character: %q", c)
+			return RuneTypeError, fmt.Errorf("invalid character %q looking for beginning of object key string", c)
 		}
 	case RuneTypeStringEnd: // waiting for ':'
 		switch c {
@@ -682,7 +682,7 @@ func (par *Parser) HandleRune(c rune) (RuneType, error) {
 		case 0x0020 <= c && c <= 0x10FFFF:
 			return RuneTypeStringChar, nil
 		default:
-			return RuneTypeError, fmt.Errorf("string: unexpected character: %q", c)
+			return RuneTypeError, fmt.Errorf("invalid character %q in string literal", c)
 		}
 	case RuneTypeStringEsc: // waiting for escape char
 		switch c {
@@ -692,26 +692,26 @@ func (par *Parser) HandleRune(c rune) (RuneType, error) {
 		case 'u':
 			return par.replaceState(RuneTypeStringEscU), nil
 		default:
-			return RuneTypeError, fmt.Errorf("string backslash sequence: unexpected character: %q", c)
+			return RuneTypeError, fmt.Errorf("invalid character %q in string escape code", c)
 		}
 	case RuneTypeStringEscU:
 		if !isHex(c) {
-			return RuneTypeError, fmt.Errorf("string unicode sequence: unexpected character: %q", c)
+			return RuneTypeError, fmt.Errorf(`invalid character %q in \u hexadecimal character escape`, c)
 		}
 		return par.replaceState(RuneTypeStringEscUA), nil
 	case RuneTypeStringEscUA:
 		if !isHex(c) {
-			return RuneTypeError, fmt.Errorf("string unicode sequence: unexpected character: %q", c)
+			return RuneTypeError, fmt.Errorf(`invalid character %q in \u hexadecimal character escape`, c)
 		}
 		return par.replaceState(RuneTypeStringEscUB), nil
 	case RuneTypeStringEscUB:
 		if !isHex(c) {
-			return RuneTypeError, fmt.Errorf("string unicode sequence: unexpected character: %q", c)
+			return RuneTypeError, fmt.Errorf(`invalid character %q in \u hexadecimal character escape`, c)
 		}
 		return par.replaceState(RuneTypeStringEscUC), nil
 	case RuneTypeStringEscUC:
 		if !isHex(c) {
-			return RuneTypeError, fmt.Errorf("string unicode sequence: unexpected character: %q", c)
+			return RuneTypeError, fmt.Errorf(`invalid character %q in \u hexadecimal character escape`, c)
 		}
 		par.replaceState(RuneTypeStringBeg)
 		return RuneTypeStringEscUD, nil
@@ -791,7 +791,7 @@ func (par *Parser) HandleRune(c rune) (RuneType, error) {
 		case '0', '1', '2', '3', '4', '5', '6', '7', '8', '9':
 			return par.replaceState(RuneTypeNumberFracDig), nil
 		default:
-			return RuneTypeError, fmt.Errorf("invalid character %q in numeric literal", c)
+			return RuneTypeError, fmt.Errorf("invalid character %q after decimal point in numeric literal", c)
 		}
 	case RuneTypeNumberFracDig: // F
 		switch c {
@@ -810,14 +810,14 @@ func (par *Parser) HandleRune(c rune) (RuneType, error) {
 		case '0', '1', '2', '3', '4', '5', '6', '7', '8', '9':
 			return par.replaceState(RuneTypeNumberExpDig), nil
 		default:
-			return RuneTypeError, fmt.Errorf("invalid character %q in numeric literal", c)
+			return RuneTypeError, fmt.Errorf("invalid character %q in exponent of numeric literal", c)
 		}
 	case RuneTypeNumberExpSign: // H
 		switch c {
 		case '0', '1', '2', '3', '4', '5', '6', '7', '8', '9':
 			return par.replaceState(RuneTypeNumberExpDig), nil
 		default:
-			return RuneTypeError, fmt.Errorf("invalid character %q in numeric literal", c)
+			return RuneTypeError, fmt.Errorf("invalid character %q in exponent of numeric literal", c)
 		}
 	case RuneTypeNumberExpDig: // I
 		switch c {