shithub: scc

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Add labeled statements

--- a/stmt.c

+++ b/stmt.c

@@ -135,6 +135,15 @@

 }

 static void

+Label(void)

+{

+	emitlabel(label(yytext));

+

+	expect(IDEN);

+	expect(':');

+}

+

+static void

 Continue(Symbol *lcont)

 {

 	expect(CONTINUE);

@@ -165,6 +174,8 @@

 static void

 stmt(Symbol *lbreak, Symbol *lcont, Symbol *lswitch)

 {

+

+repeat:

 	switch (yytoken) {

 	case '{':      compound(lbreak, lcont, lswitch); break;

 	case RETURN:   Return(); break;

@@ -173,6 +184,7 @@

 	case DO:       Dowhile(lswitch); break;

 	case BREAK:    Break(lbreak); break;

 	case CONTINUE: Continue(lcont); break;

+	case IDEN:     if (ahead() == ':') Label(); goto repeat;

 	default:       stmtexp(); break;

 	}

 }