X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ian/git?a=blobdiff_plain;f=hbytes%2Fparse.c;h=14d8f9906b59334ab8343e59c54d98e3d1e153cf;hb=b740135c3efcb63e0c7741384e5fa8ff229d2919;hp=125dd61eb9e182a2fbfd36f46ac824f38a9f006e;hpb=310a482133795d0bee9621003c0a0b3813a47037;p=chiark-tcl.git

diff --git a/hbytes/parse.c b/hbytes/parse.c
index 125dd61..14d8f99 100644
--- a/hbytes/parse.c
+++ b/hbytes/parse.c
@@ -1,16 +1,66 @@
-  sc= enum_lookup_cached(ip,objv[1],subcommands,"hbytes subcommand");
+/*
+ */
 
+#include "tables.h"
 
-static Tcl_Obj *hb_getvar(Tcl_Interp *ip, Tcl_Obj *varname) {
-  int ec;
-  Tcl_Obj *value;
+int pat_charfrom(Tcl_Interp *ip, Tcl_Obj *obj, int *val,
+		 const char *opts, const char *what) {
+  *val= enum1_lookup_cached_func(ip,obj,opts,what);
+  if (*val==-1) return TCL_ERROR;
+  return TCL_OK;
+}
+
+int pat_enum(Tcl_Interp *ip, Tcl_Obj *obj, const void **val,
+	     const void *opts, size_t sz, const char *what) {
+  *val= enum_lookup_cached_func(ip,obj,opts,sz,what);
+  if (!*val) return TCL_ERROR;
+  return TCL_OK;
+}
   
-  value= Tcl_ObjGetVar2(ip,varname,0,TCL_LEAVE_ERR_MSG);
-  if (!value) return 0;
+int pat_obj(Tcl_Interp *ip, Tcl_Obj *obj, Tcl_Obj **val) {
+  *val= obj;
+  return TCL_OK;
+}
 
-  ec= Tcl_ConvertToType(ip,value,&hbytes_type);
-  if (ec) return 0;
+int pat_hbv(Tcl_Interp *ip, Tcl_Obj *var, HBytes_Var *agg) {
+  int rc;
+  Tcl_Obj *val;
+
+  Tcl_IncrRefCount(var);
+  agg->var= var;
+
+  val= Tcl_ObjGetVar2(ip,var,0,TCL_LEAVE_ERR_MSG);
+  if (!val) return TCL_ERROR;
+  if (Tcl_IsShared(val)) val= Tcl_DuplicateObj(val);
+  Tcl_IncrRefCount(val);
+  agg->obj= val;
+  
+  rc= Tcl_ConvertToType(ip,val,&hbytes_type);
+  if (rc) return rc;
 
-  return value;
+  agg->hb= &HBYTES(val);
+  return TCL_OK;
 }
 
+void fini_hbv(Tcl_Interp *ip, int rc, HBytes_Var *agg) {
+  Tcl_Obj *ro;
+  
+  if (!rc) {
+    assert(agg->obj);
+    ro= Tcl_ObjSetVar2(ip,agg->var,0,agg->obj,TCL_LEAVE_ERR_MSG);
+    if (!ro) rc= TCL_ERROR;
+  }
+  if (agg->obj) Tcl_DecrRefCount(agg->obj);
+  if (agg->var) Tcl_DecrRefCount(agg->var);
+}
+
+int pat_hb(Tcl_Interp *ip, Tcl_Obj *obj, HBytes_Value *val) {
+  int rc;
+  rc= Tcl_ConvertToType(ip,obj,&hbytes_type);  if (rc) return rc;
+  *val= HBYTES(obj);
+  return TCL_OK;
+}
+
+Tcl_Obj *ret_hb(Tcl_Interp *ip, HBytes_Value val) {
+  return hbytes_set_obj(0, val.start, HBYTES_LEN(val));
+}