X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ian/git?p=chiark-tcl.git;a=blobdiff_plain;f=base%2Fparse.c;h=0fa5acdd4705d942ca158f5475e1691b5651e5ac;hp=1d9123876097e82940bcb2e014a9772290322254;hb=dbe2c107cd10f3e944187613b9b50f10304d0994;hpb=ed0fcd1b27831486f2894edb2d0838e38657b4fb

diff --git a/base/parse.c b/base/parse.c
index 1d91238..0fa5acd 100644
--- a/base/parse.c
+++ b/base/parse.c
@@ -23,6 +23,23 @@ int pat_string(Tcl_Interp *ip, Tcl_Obj *obj, const char **val) {
   return TCL_OK;
 }
 
+int pat_constv(Tcl_Interp *ip, Tcl_Obj *var,
+	       Tcl_Obj **val_r, Tcl_ObjType *type) {
+  int rc;
+  Tcl_Obj *val;
+  
+  val= Tcl_ObjGetVar2(ip,var,0,TCL_LEAVE_ERR_MSG);
+  if (!val) return TCL_ERROR;
+
+  if (type) {
+    rc= Tcl_ConvertToType(ip,val,type);
+    if (rc) return rc;
+  }
+
+  *val_r= val;
+  return TCL_OK;
+}
+
 void init_somethingv(Something_Var *sth) {
   sth->obj=0; sth->var=0; sth->copied=0;
 }