Initial commit

1 files changed, 31 insertions, 0 deletions

diff --git a/pkg/proto/maskexpr/megsym.x b/pkg/proto/maskexpr/megsym.x
new file mode 100644
index 00000000..44a810bc
--- /dev/null
+++ b/pkg/proto/maskexpr/megsym.x
@@ -0,0 +1,31 @@
+include <ctotok.h>
+include <ctype.h>
+include "gettok.h"
+
+
+# Expression database symbol.
+define	LEN_SYM		2
+define	SYM_TEXT	Memi[$1]
+define	SYM_NARGS	Memi[$1+1]
+
+
+
+# ME_GSYM -- Get symbol routine for the gettok package.
+
+pointer procedure me_gsym (st, symname, nargs)
+
+pointer	st			#I symbol table
+char	symname[ARB]		#I symbol to be looked up
+int	nargs			#O number of macro arguments
+
+pointer	sym
+pointer	strefsbuf(), stfind()
+
+begin
+	sym = stfind (st, symname)
+	if (sym == NULL)
+	    return (NULL)
+
+	nargs = SYM_NARGS(sym)
+	return (strefsbuf (st, SYM_TEXT(sym)))
+end