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(Unicode C) XML SearchForTag MethodDemonstrates the SearchForTag and SearchForTag2 methods. The input XML, available at http://www.chilkatsoft.com/data/fruitSearch.xml, is this: <root> <searchRoot> <fruit color="red">apple</fruit> <fruit color="green">pear</fruit> <veg color="orange">carrot</veg> <meat animal="cow">beef</meat> <xyz> <fruit color="blue">blueberry</fruit> <veg color="green">broccoli</veg> </xyz> <fruit color="purple">grape</fruit> <cheese color="yellow">cheddar</cheese> </searchRoot> <fruit color="red">strawberry</fruit> <fruit color="orange">peach</fruit> </root>
#include <C_CkXmlW.h> void ChilkatSample(void) { HCkXmlW xml; HCkXmlW xSearchRoot; HCkXmlW xBeginAfter; HCkXmlW xFound; BOOL success; HCkXmlW xSearch; xml = CkXmlW_Create(); // The sample input XML is available at http://www.chilkatsoft.com/data/fruitSearch.xml success = CkXmlW_LoadXmlFile(xml,L"qa_data/xml/fruitSearch.xml"); if (success != TRUE) { wprintf(L"%s\n",CkXmlW_lastErrorText(xml)); CkXmlW_Dispose(xml); return; } // Search the sub-tree rooted at "searchRoot" xSearchRoot = CkXmlW_FindChild(xml,L"searchRoot"); // Search for all nodes having the tag "fruit" xBeginAfter = CkXmlW_GetSelf(xSearchRoot); xFound = CkXmlW_SearchForTag(xSearchRoot,xSearchRoot,L"fruit"); while ((CkXmlW_getLastMethodSuccess(xSearchRoot) == TRUE)) { wprintf(L"%s\n",CkXmlW_content(xFound)); CkXmlW_Dispose(xBeginAfter); xBeginAfter = xFound; xFound = CkXmlW_SearchForTag(xSearchRoot,xBeginAfter,L"fruit"); } CkXmlW_Dispose(xBeginAfter); wprintf(L"--------------------------\n"); // --------------------------------------------------------------------------------- // Now do the same, but instead use SearchForTag2 // which updates the internal reference of the caller instead // of returning the found node. xBeginAfter = CkXmlW_GetSelf(xSearchRoot); xSearch = CkXmlW_GetSelf(xSearchRoot); success = CkXmlW_SearchForTag2(xSearch,xBeginAfter,L"fruit"); while (success == TRUE) { wprintf(L"%s\n",CkXmlW_content(xSearch)); // Copy the internal references so that the next search // begins after the found node. CkXmlW_CopyRef(xBeginAfter,xSearch); CkXmlW_CopyRef(xSearch,xSearchRoot); success = CkXmlW_SearchForTag2(xSearch,xBeginAfter,L"fruit"); } CkXmlW_Dispose(xSearch); CkXmlW_Dispose(xBeginAfter); CkXmlW_Dispose(xSearchRoot); CkXmlW_Dispose(xml); } |
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