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, 6 insertions, 1 deletions

diff --git a/src/cmd/rc/rc.h b/src/cmd/rc/rc.h
index 9b415fc..f7533a0 100644
--- a/src/cmd/rc/rc.h
+++ b/src/cmd/rc/rc.h
@@ -139,7 +139,8 @@ struct Thread
         struct WaitItem *on;
     } wait;
 
-    int  pid, pgid, status;
+    int  pid, pgid;
+    int  status;
     long line;
 
     Thread *caller; // process we return to
@@ -261,3 +262,7 @@ char **mkenv(void);
 int   compile(Tree *);
 Code *copycode(Code *c);
 void  freecode(Code *c);
+
+/* glob.c */
+#define GLOB ((char)(0x01))
+int match(char *, char *, int);