Feat: added if/else branching and switch statement

Unsure about my modification to the language. I found the parsing of the
case body within switches to be odd - specifically that it parses
liberally and then checks that it has case -> cmd structuring while it
walks the code. This means the language is more permissive than the
semantics. I modified it to be more explicit, but at the cost of having
to end each case statement with a semicolon. I wanted a colon, but this
is a valid word character and thus will be lexed as part of the word.

1 files changed, 2 insertions, 1 deletions

diff --git a/src/cmd/rc/main.c b/src/cmd/rc/main.c
index 2c0aa42..eb83c90 100644
--- a/src/cmd/rc/main.c
+++ b/src/cmd/rc/main.c
@@ -54,13 +54,14 @@ main(int argc, char *argv[])
 {
     shell.err = openfd(2);
 
+    /* yydebug=1; */
     initenv();
     initpath();
     initkeywords();
     initshell();
     inithistory();
 
-    enablevi();
+    /* enablevi(); */
     xboot(argc, argv);
     /* unreachable */
 }