void usage(char **argv)
{
struct usage_help *help = NULL;
char *arg = argv[0];
char *p;
p = basename(arg);
printf("\n"
"%s version %s\n\n"
"usage:\n", p, VERSION_STRING);
if (argv[1])
help = find_help(argv[1]);
if (help) {
printf(help->long_help, p);
goto out;
}
printf(" %s [COMMAND] ...\n\n"
" commands:\n", p);
help = usage_help;
while (help->name) {
printf(" %s - %s\n", help->name, help->short_help);
help++;
}
out:
printf("\n");
exit(-1);
}
HelpNode *all_help()
{
HelpNode *node = new HelpNode(NULL, main_help_str);
for (int i = 0; keywords[i]; i++) {
HelpNode *n = new HelpNode(node, keywords[i]);
find_help(keywords[i], n);
}
return node;
}
void help(string keyword)
{
HelpNode *node;
int h;
if (keyword == "all") {
node = all_help();
h = 0;
} else if (keyword == "workflow") {
node = new HelpNode(NULL, flow_help_str);
h = 0;
} else if (keyword == "expressions") {
node = new HelpNode(NULL, expr_help_str);
h = 0;
} else {
node = find_help(keyword);
h = 2;
}
if (node) {
HelpFormatScreen(cout, *node, h);
delete node;
} else {
cout << "help(" << keyword << "): Unknown keyword: " << keyword << endl
<< "Possibilities are:" << endl;
size_t i = 0;
while(keywords[i])
{
if(i!=0) cout << ", ";
cout << keywords[i];
++i;
}
cout << endl;
cout << "Or one of \"all\", \"workflow\", \"expressions\".";
cout << endl;
}
}
