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SWORD25: Added GetXmlFile helper function

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The XML files included with the game don't include an XML header line, which is required by the ScummVM XML parser. This helper function encapsulates the GetFile method to return a buffer that includes the required line at the start.

svn-id: r53276
This commit is contained in:
Paul Gilbert 2010-08-22 02:05:31 +00:00 committed by Eugene Sandulenko
parent 4d11cf941e
commit 2c62016838
1 changed files with 22 additions and 0 deletions
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22
engines/sword25/package/packagemanager.h
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@ -101,6 +101,28 @@ public:
* @remark The client must not forget to release the data of the file using BE_DELETE_A.
*/
virtual byte *GetFile(const Common::String &FileName, unsigned int *pFileSize = NULL) = 0;
/**
* Downloads an XML file and prefixes it with an XML Version key, since the XML files don't contain it,
* and it is required for ScummVM to correctly parse the XML.
* @param FileName The filename of the file to load
* @param pFileSize Pointer to the variable that will contain the size of the loaded file. The deafult is NULL.
* @return Specifies a pointer to the loaded data of the file
* @remark The client must not forget to release the data of the file using BE_DELETE_A.
*/
char *GetXmlFile(const Common::String &FileName, unsigned int *pFileSize = NULL) {
const char *versionStr = "<?xml version=\"1.0\"?>";
unsigned int fileSize;
char *data = (char *)GetFile(FileName, &fileSize);
char *result = (char *)malloc(fileSize + strlen(versionStr) + 1);
strcpy(result, versionStr);
Common::copy(data, data + fileSize, result + strlen(versionStr));
result[fileSize + strlen(versionStr)] = '\0';
free(data);
if (pFileSize) *pFileSize = fileSize + strlen(versionStr);
return result;
}
/**
* Returns the path to the current directory.
* @return Returns a string containing the path to the current directory.