Shorten error message more

docs/content/error-recover/_index.md

@@ -15,15 +15,11 @@ Then, the following two errors are reported:
 
 ```sql
 syntax error: :1:12: unexpected token: )
-
-  1:  SELECT (1 +) + (* 2)
-                 ^
-
-
+  1|  SELECT (1 +) + (* 2)
+   |             ^
 syntax error: :1:17: unexpected token: *
-
-  1:  SELECT (1 +) + (* 2)
-                      ^
+  1|  SELECT (1 +) + (* 2)
+   |                  ^
 ```
 
 Hoever, the AST is also returned:

error.go

@@ -36,10 +36,7 @@ func (list MultiError) Error() string {
 // FullError returns a full error message.
 func (list MultiError) FullError() string {
 	var message bytes.Buffer
-	for i, err := range list {
-		if i > 0 {
-			fmt.Fprintln(&message)
-		}
+	for _, err := range list {
 		fmt.Fprintln(&message, err.Error())
 	}
 	return message.String()
@@ -58,7 +55,7 @@ func (e *Error) Error() string {
 	var message bytes.Buffer
 	fmt.Fprintf(&message, "syntax error: %s: %s", e.Position, e.Message)
 	if e.Position.Source != "" {
-		fmt.Fprintf(&message, "\n\n%s", e.Position.Source)
+		fmt.Fprintf(&message, "\n%s", e.Position.Source)
 	}
 	return message.String()
 }

error_test.go

@@ -19,7 +19,7 @@ func TestMultiError(t *testing.T) {
 			Column:    0,
 			EndLine:   0,
 			EndColumn: 1,
-			Source:    "  1: a b\n     ^",
+			Source:    "  1| a b\n   | ^",
 		},
 	}
 	err2 := &Error{
@@ -32,7 +32,7 @@ func TestMultiError(t *testing.T) {
 			Column:    2,
 			EndLine:   0,
 			EndColumn: 3,
-			Source:    "  1: a b\n       ^",
+			Source:    "  1| a b\n   |   ^",
 		},
 	}
 
@@ -50,36 +50,30 @@ func TestMultiError(t *testing.T) {
 			MultiError{err1},
 			heredoc.Doc(`
 				syntax error: foo:1:1: error 1
-
-				  1: a b
-				     ^
+				  1| a b
+				   | ^
 			`),
 			heredoc.Doc(`
 				syntax error: foo:1:1: error 1
-
-				  1: a b
-				     ^
+				  1| a b
+				   | ^
 			`),
 		},
 		{
 			MultiError{err1, err2},
 			heredoc.Doc(`
 				syntax error: foo:1:1: error 1
-
-				  1: a b
-				     ^
+				  1| a b
+				   | ^
 				(and 1 other error)
 			`),
 			heredoc.Doc(`
 				syntax error: foo:1:1: error 1
-
-				  1: a b
-				     ^
-
+				  1| a b
+				   | ^
 				syntax error: foo:1:3: error 2
-
-				  1: a b
-				       ^
+				  1| a b
+				   |   ^
 			`),
 		},
 	} {

testdata/result/ddl/!bad_alter_table_add_column.sql.txt

@@ -2,9 +2,8 @@
 alter table foo add column baz string(max) null
 --- Error
 syntax error: testdata/input/ddl/!bad_alter_table_add_column.sql:1:44: expected token: <eof>, but: NULL
-
-  1:  alter table foo add column baz string(max) null
-                                                 ^~~~
+  1|  alter table foo add column baz string(max) null
+   |                                             ^~~~
 
 
 --- AST

testdata/result/dml/!bad_insert.sql.txt

@@ -4,9 +4,8 @@ vales (1, 2, 3),
       (4, 5, 6)
 --- Error
 syntax error: testdata/input/dml/!bad_insert.sql:2:1: expected beginning of simple query "(", SELECT, FROM, but: "vales"
-
-  2:  vales (1, 2, 3),
-      ^~~~~
+  2|  vales (1, 2, 3),
+   |  ^~~~~
 
 
 --- AST

testdata/result/expr/!bad_new_braced_constructor.sql.txt

@@ -3,9 +3,8 @@ NEW foo { bar: 1 + }
 
 --- Error
 syntax error: testdata/input/expr/!bad_new_braced_constructor.sql:1:20: unexpected token: }
-
-  1:  NEW foo { bar: 1 + }
-                         ^
+  1|  NEW foo { bar: 1 + }
+   |                     ^
 
 
 --- AST

testdata/result/expr/!bad_plus.sql.txt

@@ -3,9 +3,8 @@
 
 --- Error
 syntax error: testdata/input/expr/!bad_plus.sql:2:1: unexpected token: <eof>
-
-  2:  
-      ^
+  2|  
+   |  ^
 
 
 --- AST

testdata/result/expr/!bad_plus2.sql.txt

@@ -3,14 +3,11 @@
 
 --- Error
 syntax error: testdata/input/expr/!bad_plus2.sql:1:5: unexpected token: )
-
-  1:  (1 +) + (2 +)
-          ^
-
+  1|  (1 +) + (2 +)
+   |      ^
 syntax error: testdata/input/expr/!bad_plus2.sql:1:13: unexpected token: )
-
-  1:  (1 +) + (2 +)
-                  ^
+  1|  (1 +) + (2 +)
+   |              ^
 
 
 --- AST

testdata/result/expr/!bad_typed_struct.sql.txt

@@ -3,14 +3,11 @@ STRUCT<1>(2 +)
 
 --- Error
 syntax error: testdata/input/expr/!bad_typed_struct.sql:1:8: expected token: <ident>, ARRAY, STRUCT, but: <int>
-
-  1:  STRUCT<1>(2 +)
-             ^
-
+  1|  STRUCT<1>(2 +)
+   |         ^
 syntax error: testdata/input/expr/!bad_typed_struct.sql:1:14: unexpected token: )
-
-  1:  STRUCT<1>(2 +)
-                   ^
+  1|  STRUCT<1>(2 +)
+   |               ^
 
 
 --- AST

testdata/result/query/!bad_hint_select.sql.txt

@@ -3,9 +3,8 @@
 
 --- Error
 syntax error: testdata/input/query/!bad_hint_select.sql:1:3: expected token: {, but: SELECT
-
-  1:  @ select 1
-        ^~~~~~
+  1|  @ select 1
+   |    ^~~~~~
 
 
 --- AST

testdata/result/query/!bad_hint_select_2.sql.txt

@@ -2,9 +2,8 @@
 @{hint = 1} select
 --- Error
 syntax error: testdata/input/query/!bad_hint_select_2.sql:1:19: unexpected token: <eof>
-
-  1:  @{hint = 1} select
-                        ^
+  1|  @{hint = 1} select
+   |                    ^
 
 
 --- AST

testdata/result/query/!bad_select.sql.txt

@@ -3,9 +3,8 @@ select
 
 --- Error
 syntax error: testdata/input/query/!bad_select.sql:2:1: unexpected token: <eof>
-
-  2:  
-      ^
+  2|  
+   |  ^
 
 
 --- AST

testdata/result/query/!bad_select_order.sql.txt

@@ -3,9 +3,8 @@ select 1 order x asc
 
 --- Error
 syntax error: testdata/input/query/!bad_select_order.sql:1:16: expected token: BY, but: <ident>
-
-  1:  select 1 order x asc
-                     ^
+  1|  select 1 order x asc
+   |                 ^
 
 
 --- AST

testdata/result/query/!bad_select_union_select.sql.txt

@@ -2,14 +2,11 @@
 select union all select
 --- Error
 syntax error: testdata/input/query/!bad_select_union_select.sql:1:8: unexpected token: UNION
-
-  1:  select union all select
-             ^~~~~
-
+  1|  select union all select
+   |         ^~~~~
 syntax error: testdata/input/query/!bad_select_union_select.sql:1:24: unexpected token: <eof>
-
-  1:  select union all select
-                             ^
+  1|  select union all select
+   |                         ^
 
 
 --- AST

testdata/result/statement/!bad_alter_table_add_column.sql.txt

@@ -2,9 +2,8 @@
 alter table foo add column baz string(max) null
 --- Error
 syntax error: testdata/input/ddl/!bad_alter_table_add_column.sql:1:44: expected token: <eof>, but: NULL
-
-  1:  alter table foo add column baz string(max) null
-                                                 ^~~~
+  1|  alter table foo add column baz string(max) null
+   |                                             ^~~~
 
 
 --- AST

testdata/result/statement/!bad_hint_select.sql.txt

@@ -3,9 +3,8 @@
 
 --- Error
 syntax error: testdata/input/query/!bad_hint_select.sql:1:3: expected token: {, but: SELECT
-
-  1:  @ select 1
-        ^~~~~~
+  1|  @ select 1
+   |    ^~~~~~
 
 
 --- AST

testdata/result/statement/!bad_hint_select_2.sql.txt

@@ -2,9 +2,8 @@
 @{hint = 1} select
 --- Error
 syntax error: testdata/input/query/!bad_hint_select_2.sql:1:19: unexpected token: <eof>
-
-  1:  @{hint = 1} select
-                        ^
+  1|  @{hint = 1} select
+   |                    ^
 
 
 --- AST

testdata/result/statement/!bad_insert.sql.txt

@@ -4,9 +4,8 @@ vales (1, 2, 3),
       (4, 5, 6)
 --- Error
 syntax error: testdata/input/dml/!bad_insert.sql:2:1: expected beginning of simple query "(", SELECT, FROM, but: "vales"
-
-  2:  vales (1, 2, 3),
-      ^~~~~
+  2|  vales (1, 2, 3),
+   |  ^~~~~
 
 
 --- AST

testdata/result/statement/!bad_select.sql.txt

@@ -3,9 +3,8 @@ select
 
 --- Error
 syntax error: testdata/input/query/!bad_select.sql:2:1: unexpected token: <eof>
-
-  2:  
-      ^
+  2|  
+   |  ^
 
 
 --- AST

testdata/result/statement/!bad_select_order.sql.txt

@@ -3,9 +3,8 @@ select 1 order x asc
 
 --- Error
 syntax error: testdata/input/query/!bad_select_order.sql:1:16: expected token: BY, but: <ident>
-
-  1:  select 1 order x asc
-                     ^
+  1|  select 1 order x asc
+   |                 ^
 
 
 --- AST

testdata/result/statement/!bad_select_union_select.sql.txt

@@ -2,14 +2,11 @@
 select union all select
 --- Error
 syntax error: testdata/input/query/!bad_select_union_select.sql:1:8: unexpected token: UNION
-
-  1:  select union all select
-             ^~~~~
-
+  1|  select union all select
+   |         ^~~~~
 syntax error: testdata/input/query/!bad_select_union_select.sql:1:24: unexpected token: <eof>
-
-  1:  select union all select
-                             ^
+  1|  select union all select
+   |                         ^
 
 
 --- AST

token/file.go

@@ -61,15 +61,15 @@ func (f *File) Position(pos, end Pos) *Position {
 		if count < 0 {
 			count = 0
 		}
-		fmt.Fprintf(&source, "%3d:  %s\n", line+1, lineBuffer)
-		fmt.Fprintf(&source, "      %s^%s", strings.Repeat(" ", column), strings.Repeat("~", count))
+		fmt.Fprintf(&source, "%3d|  %s\n", line+1, lineBuffer)
+		fmt.Fprintf(&source, "   |  %s^%s", strings.Repeat(" ", column), strings.Repeat("~", count))
 	case line < endLine:
 		for l := line; l <= endLine; l++ {
 			if l > 0 {
 				fmt.Fprintln(&source)
 			}
 			lineBuffer := f.Buffer[f.lines[l] : f.lines[l+1]-1]
-			fmt.Fprintf(&source, "%3d:  %s", l+1, lineBuffer)
+			fmt.Fprintf(&source, "%3d|  %s", l+1, lineBuffer)
 		}
 	}