Support more character literals

diff --git a/frontends/verilog/verilog_lexer.l b/frontends/verilog/verilog_lexer.l
index 32d7738cf05105d97842c28d9b250805329da96d..d12c9ee4eac785abcce4c4d1fa9e6fdb45fa154d 100644 (file)
--- a/frontends/verilog/verilog_lexer.l
+++ b/frontends/verilog/verilog_lexer.l
@@ -241,10 +241,18 @@ YOSYS_NAMESPACE_END
        while (yystr[i]) {
                if (yystr[i] == '\\' && yystr[i + 1]) {
                        i++;
-                       if (yystr[i] == 'n')
+                       if (yystr[i] == 'a')
+                               yystr[i] = '\a';
+                       else if (yystr[i] == 'f')
+                               yystr[i] = '\f';
+                       else if (yystr[i] == 'n')
                                yystr[i] = '\n';
+                       else if (yystr[i] == 'r')
+                               yystr[i] = '\r';
                        else if (yystr[i] == 't')
                                yystr[i] = '\t';
+                       else if (yystr[i] == 'v')
+                               yystr[i] = '\v';
                        else if ('0' <= yystr[i] && yystr[i] <= '7') {
                                yystr[i] = yystr[i] - '0';
                                if ('0' <= yystr[i + 1] && yystr[i + 1] <= '7') {