From bdbbbc507683954721370aad15b8d43393dd28fe Mon Sep 17 00:00:00 2001
From: paulc <paulc@acf43c95-373e-0410-b603-e72c3f656dc1>
Date: Mon, 31 Aug 2009 13:36:37 +0000
Subject: [PATCH] Added NamedList constructor and method to copy subparameters
 from another list.

git-svn-id: http://yate.null.ro/svn/yate/trunk@2811 acf43c95-373e-0410-b603-e72c3f656dc1
---
 engine/NamedList.cpp | 24 ++++++++++++++++++++++++
 yateclass.h          | 15 +++++++++++++++
 2 files changed, 39 insertions(+)

diff --git a/engine/NamedList.cpp b/engine/NamedList.cpp
index 9f90bfa0..fd290b03 100644
--- a/engine/NamedList.cpp
+++ b/engine/NamedList.cpp
@@ -46,6 +46,12 @@ NamedList::NamedList(const NamedList& original)
     }
 }
 
+NamedList::NamedList(const char* name, const NamedList& original, const String& prefix)
+    : String(name)
+{
+    copySubParams(original,prefix);
+}
+
 void* NamedList::getObject(const String& name) const
 {
     if (name == "NamedList")
@@ -172,6 +178,24 @@ NamedList& NamedList::copyParams(const NamedList& original, const String& list,
     return *this;
 }
 
+NamedList& NamedList::copySubParams(const NamedList& original, const String& prefix)
+{
+    XDebug(DebugInfo,"NamedList::copySubParams(%p,\"%s\")",&original,prefix.c_str());
+    if (prefix) {
+	unsigned int offs = prefix.length();
+	unsigned int n = original.length();
+	for (unsigned int i = 0; i < n; i++) {
+	    const NamedString* s = original.getParam(i);
+	    if (s && s->name().startsWith(prefix)) {
+		const char* name = s->name().c_str() + offs;
+		if (*name)
+		    addParam(name,*s);
+	    }
+	}
+    }
+    return *this;
+}
+
 void NamedList::dump(String& str, const char* separator, char quote, bool force) const
 {
     if (force && str.null())
diff --git a/yateclass.h b/yateclass.h
index 82068c42..fbe68bda 100644
--- a/yateclass.h
+++ b/yateclass.h
@@ -3240,6 +3240,14 @@ public:
      */
     NamedList(const NamedList& original);
 
+    /**
+     * Creates a named list with subparameters of another list.
+     * @param name Name of the list - must not be NULL or empty
+     * @param original Named list to copy parameters from
+     * @param prefix Prefix to match and remove from parameter names
+     */
+    NamedList(const char* name, const NamedList& original, const String& prefix);
+
     /**
      * Get a pointer to a derived class given that class name
      * @param name Name of the class we are asking for
@@ -3330,6 +3338,13 @@ public:
      */
     NamedList& copyParams(const NamedList& original, const String& list, char childSep = 0);
 
+    /**
+     * Copy subparameters from another list
+     * @param original Named list to copy parameters from
+     * @param prefix Prefix to match and remove from parameter names, must not be NULL
+     */
+    NamedList& copySubParams(const NamedList& original, const String& prefix);
+
     /**
      * Get the index of a named string in the parameter list.
      * @param param Pointer to the parameter to locate