Add filter option to iterators

[citadel.git] / webcit / subst.h

diff --git a/webcit/subst.h b/webcit/subst.h
index bd6f8318d97d1d0202c8a93de535c546a64bb3a6..d80c97f5275e63747c1bea721d3b78d231f498c9 100644 (file)
--- a/webcit/subst.h
+++ b/webcit/subst.h
@@ -180,7 +180,7 @@ typedef struct _ConditionalStruct {
 typedef void (*SubTemplFunc)(StrBuf *TemplBuffer, WCTemplputParams *TP);
 typedef HashList *(*RetrieveHashlistFunc)(StrBuf *Target, WCTemplputParams *TP);
 typedef void (*HashDestructorFunc) (HashList **KillMe);
-
+typedef int (*FilterByParamFunc)(const char* key, long len, void *Context, StrBuf *Target, WCTemplputParams *TP);
 
 extern WCTemplputParams NoCtx;
 
@@ -362,13 +362,15 @@ long GetTokenDefine(const char *Name,
 
 #define IT_NOFLAG 0
 #define IT_FLAG_DETECT_GROUPCHANGE (1<<0)
-#define RegisterIterator(a, b, c, d, e, f, g, h, i) RegisterITERATOR(a, sizeof(a)-1, b, c, d, e, f, g, h, i)
+#define RegisterIterator(a, b, c, d, e, f, g, h, i) RegisterITERATOR(a, sizeof(a)-1, b, c, d, e, f, NULL, g, h, i)
+#define RegisterFilteredIterator(a, b, c, d, e, f, g, h, i, j) RegisterITERATOR(a, sizeof(a)-1, b, c, d, e, f, g, h, i, j)
 void RegisterITERATOR(const char *Name, long len, /* Our identifier */
-                     int AdditionalParams,       /* doe we use more parameters? */
+                     int AdditionalParams,       /* do we use more parameters? */
                      HashList *StaticList,       /* pointer to webcit lifetime hashlists */
                      RetrieveHashlistFunc GetHash, /* else retrieve the hashlist by calling this function */
                      SubTemplFunc DoSubTempl,       /* call this function on each iteration for svput & friends */
                      HashDestructorFunc Destructor, /* use this function to shut down the hash; NULL if its a reference */
+                     FilterByParamFunc Filter,      /* use this function if you want to skip items */
                      CtxType ContextType,               /* which context do we provide to the subtemplate? */
                      CtxType XPectContextType,          /* which context do we expct to be called in? */
                      int Flags);