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(Unicode C) Unzip Files Matching a Pattern (such as *.xml)Example code to unzip Files Matching a Pattern (such as *.xml)
#include <C_CkHttpW.h> #include <C_CkZipW.h> void ChilkatSample(void) { HCkHttpW http; BOOL success; HCkZipW zip; const wchar_t *zipContentsXml; int count; // This example works with the .zip located at http://www.example-code.com/data/test.zip // This example assumes the Chilkat API to have been previously unlocked. // See Global Unlock Sample for sample code. // First, let's download the .zip http = CkHttpW_Create(); success = CkHttpW_Download(http,L"http://www.example-code.com/data/test.zip",L"qa_test/test.zip"); if (success != TRUE) { wprintf(L"%s\n",CkHttpW_lastErrorText(http)); CkHttpW_Dispose(http); return; } zip = CkZipW_Create(); success = CkZipW_OpenZip(zip,L"qa_test/test.zip"); if (success != TRUE) { wprintf(L"%s\n",CkZipW_lastErrorText(zip)); CkHttpW_Dispose(http); CkZipW_Dispose(zip); return; } // Show what's in the .zip by getting the directory as XML. zipContentsXml = CkZipW_getDirectoryAsXML(zip); if (CkZipW_getLastMethodSuccess(zip) != TRUE) { wprintf(L"%s\n",CkZipW_lastErrorText(zip)); CkHttpW_Dispose(http); CkZipW_Dispose(zip); return; } wprintf(L"%s\n",zipContentsXml); // In this case, the contents of our .zip look like this: // <?xml version="1.0" encoding="utf-8" ?> // <zip_contents> // <dir name="test"> // <dir name="abc"> // <dir name="123"> // <file>ecc_public.pem</file> // <file>starfish.jpg</file> // </dir> // <file>comodo-certificates.pem</file> // <file>pigs.xml</file> // </dir> // <file>COMODORSACertificationAuthority.crt</file> // <file>hamlet.xml</file> // </dir> // </zip_contents> // ------------------------------------------------------------------------ // If we wish to unzip only .xml files, use "*.xml" for the pattern\ // Unzip to the "qa_output" directory relative to our current working directory. // (You may unzip to an absolute path by passing an absolute path, such as "/someDir" or // "C:/someDir", etc.) // This will unzip only the .xml files. The relative directory structure within // the .zip will be created in the local filesystem under the unzip directory // path passed in the first argument, which in this case is "qa_output". count = CkZipW_UnzipMatching(zip,L"qa_output",L"*.xml",TRUE); if (count < 0) { wprintf(L"%s\n",CkZipW_lastErrorText(zip)); CkHttpW_Dispose(http); CkZipW_Dispose(zip); return; } wprintf(L"unzipped %d matching file(s).\n",count); // ------------------------------------------------------------------------ // If we wish to unzip only files under the "123" directory, we can do this: count = CkZipW_UnzipMatching(zip,L"qa_output2",L"*/123/*",TRUE); if (count < 0) { wprintf(L"%s\n",CkZipW_lastErrorText(zip)); CkHttpW_Dispose(http); CkZipW_Dispose(zip); return; } wprintf(L"unzipped %d matching file(s).\n",count); // ------------------------------------------------------------------------ // If no asterisk character is used, then the match must be exact. // For example, to unzip "test/hamlet.xml" we must pass the exact path // as it is in the .zip. We cannot just pass "hamlet.xml". count = CkZipW_UnzipMatching(zip,L"qa_output3",L"test/hamlet.xml",TRUE); if (count < 0) { wprintf(L"%s\n",CkZipW_lastErrorText(zip)); CkHttpW_Dispose(http); CkZipW_Dispose(zip); return; } wprintf(L"unzipped %d matching file(s).\n",count); // ------------------------------------------------------------------------ // If we want to unzip any file named "hamlet.xml" found in any sub-directory... count = CkZipW_UnzipMatching(zip,L"qa_output4",L"*/hamlet.xml",TRUE); if (count < 0) { wprintf(L"%s\n",CkZipW_lastErrorText(zip)); CkHttpW_Dispose(http); CkZipW_Dispose(zip); return; } wprintf(L"unzipped %d matching file(s).\n",count); CkHttpW_Dispose(http); CkZipW_Dispose(zip); } |
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