#include <cstdio>#include "litesql.hpp"#include "litesql-gen-cpp.hpp"#include "litesql-gen-graphviz.hpp"using namespace std;char* help = "Usage: litesql-gen [options] <my-database.xml>\n\n""Options:\n"" -t, --target=TARGET         generate code for TARGET (default: c++)\n"" -v, --verbose               verbosely report code generation\n"" --help                      print help\n""\n""Supported targets:\n""  'c++'        C++ target (.cpp,.hpp)\n"//"  'c'          C target (.c,.h)\n"//"  'hs'         Haskell target (.hs)\n"//"  'sql'        SQL schema of database (.sql)\n""  'graphviz'   Graphviz file (.dot)\n""\n\n";static string target = "c++";static bool verbose = false;void report(const string& msg) {    if (verbose)        cout << msg;}void generateCode(xml::Database& db,                  vector<xml::Object>& objects,                  vector<xml::Relation>& relations) {    xml::init(db, objects, relations);    if (target == "c++")         writeCPPClasses(db, objects, relations);    else if (target == "graphviz")         writeGraphviz(db, objects, relations);    else        throw litesql::Except("unsupported target: " + target);}int litesql_gen_main(int argc, char **argv, FILE ** yyin) {     bool printHelp = false;    for (size_t i = 1; i < argc; i++) {        string arg = argv[i];        if (arg == "-v" || arg == "--verbose") {            verbose = true;            continue;        } else if (arg == "-t" || arg == "--target") {            if (i+1 >= argc) {                fprintf(stderr, "Error: missing target\n");                return -1;            }                target = argv[i+1];            i++;            continue;        } else if (litesql::startsWith(arg, "--target=")) {            litesql::Split lang(arg, "=");            target = lang[1];            continue;        } else if (arg == "--help") {            printHelp = true;            break;        } else if (i < argc - 1) {            fprintf(stderr, "Error: invalid argument '%s'\n", arg.c_str());            return -1;        }    }    if (argc == 1 || printHelp) {        fprintf(stderr, help);        return -1;    }    *yyin = fopen(argv[argc-1], "r");    if (!*yyin) {        string msg = "could not open file '" + string(argv[argc-1]) + "'";        perror(msg.c_str());        return -1;    }    try {        return yylex();    } catch (litesql::Except e) {        cerr << "Error: " << e << endl;        return -1;    }}