XML2C

How to convert brainfile.xml (Amiga BootBlock Reader) to a C structure

Amiga BootBlock Reader is a tool for scanning the boot blocks of Amiga floppy disks. It tries to recognize the boot block by matching portions of the raw data with a database. All database records are stored in an XML file called brainfile.xml.

An easy way to convert the XML file into another format is to utilize the Mini-XML library by Michael R Sweet. Here is some example code showing how the library can be used for this purpose:

#include "mxml.h"

int main(int argc, char *argv[])
{
	FILE *fp;
	mxml_node_t *tree;

	fp = fopen("brainfile.xml", "r");
    tree = mxmlLoadFile(NULL, fp, MXML_OPAQUE_CALLBACK);
    fclose(fp);

    // Crawl through all Bootblock nodes
    mxml_node_t *node, *subnode;
    for (node = mxmlFindElement(tree, tree, "Bootblock", NULL, NULL, MXML_DESCEND);
         node != NULL;
         node = mxmlFindElement(node, tree, "Bootblock", NULL, NULL, MXML_DESCEND)) {
    
        // Skip all entries that are no viruses
        subnode = mxmlFindElement(node, tree, "Class", NULL, NULL, MXML_DESCEND);
        if (strcmp(mxmlGetOpaque(subnode), "v") != 0) continue;

        // Extract name
        subnode = mxmlFindElement(node, tree, "Name", NULL, NULL, MXML_DESCEND);
        const char *name = mxmlGetOpaque(subnode);

        // Extract marker
        subnode = mxmlFindElement(node, tree, "Recog", NULL, NULL, MXML_DESCEND);
        const char *recog = mxmlGetOpaque(subnode);

        printf("VIRUS(\"%s\",\n", name);
        printf("      %s),\n", recog);
    }
    return 0;
}