Add more syntax to lexer and parser, and make improvements to tview

sql/lexer.go

@@ -21,6 +21,9 @@ const (
 	COMMA
 	ASTERIKS
 	ASSIGN
+	BACKQUOTE
+	QUOTE
+	SINGLE_QUOTE
 
 	// Keywords
 	CREATE
@@ -41,36 +44,42 @@ const (
 	NOT
 	IF
 	EXISTS
+	AUTOINCREMENT
+	CONSTRAINT
 
 	TEXT
 	INTEGER
 	NULL
 	REAL
 	BLOB
+	NUMERIC
 )
 
 var keywords map[string]Token = map[string]Token{
-	"CREATE":     CREATE,
-	"TABLE":      TABLE,
-	"PRIMARY":    PRIMARY,
-	"FOREIGN":    FOREIGN,
-	"REFERENCES": REFERENCES,
-	"KEY":        KEY,
-	"NOT":        NOT,
-	"TEXT":       TEXT,
-	"INTEGER":    INTEGER,
-	"NULL":       NULL,
-	"IF":         IF,
-	"EXISTS":     EXISTS,
-	"SELECT":     SELECT,
-	"FROM":       FROM,
-	"WHERE":      WHERE,
-	"AND":        AND,
-	"OR":         OR,
-	"ORDER":      ORDER,
-	"TOP":        TOP,
-	"REAL":       REAL,
-	"BLOB":       BLOB,
+	"CREATE":        CREATE,
+	"TABLE":         TABLE,
+	"PRIMARY":       PRIMARY,
+	"FOREIGN":       FOREIGN,
+	"REFERENCES":    REFERENCES,
+	"KEY":           KEY,
+	"NOT":           NOT,
+	"TEXT":          TEXT,
+	"INTEGER":       INTEGER,
+	"NULL":          NULL,
+	"IF":            IF,
+	"EXISTS":        EXISTS,
+	"SELECT":        SELECT,
+	"FROM":          FROM,
+	"WHERE":         WHERE,
+	"AND":           AND,
+	"OR":            OR,
+	"ORDER":         ORDER,
+	"TOP":           TOP,
+	"REAL":          REAL,
+	"BLOB":          BLOB,
+	"AUTOINCREMENT": AUTOINCREMENT,
+	"CONSTRAINT":    CONSTRAINT,
+	"NUMERIC":       NUMERIC,
 }
 
 type Position struct {
@@ -116,6 +125,12 @@ func (l *Lexer) Lex() (Position, Token, string) {
 			return l.pos, ASTERIKS, "*"
 		case '=':
 			return l.pos, ASSIGN, "="
+		case '`':
+			return l.pos, BACKQUOTE, "`"
+		case '"':
+			return l.pos, QUOTE, "\""
+		case '\'':
+			return l.pos, SINGLE_QUOTE, "'"
 		default:
 			if unicode.IsSpace(r) {
 				continue