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// cmdline_parse.cc
#include "cmdline_parse.h"
#include <apt-pkg/error.h>
using namespace std;
void parse_cmdline(vector<arg_parser *> parsers, int argc, char *argv[])
{
// Assumes that argv[0] is useless (ie, the command name)
int loc=1;
while(loc<argc)
{
bool done=false;
for(int i=0; i<parsers.size() && !done; ++i)
done=parsers[i].parse_arg(argc, argv);
if(!done)
_error->Error("Invalid command-line option '%s'", argv[argc]);
if(_error->PendingError())
return;
}
}
class dashopt_parser:public arg_parser
{
char shortopt;
char *longopt;
sigc::slot0<void> callback;
public:
bool parse_arg(int argc, char *argv[], int &loc)
{
if(argv[loc][0]=='-')
{
if(argv[loc][1]=='-')
{
if(longopt && !strcmp(argv[loc]+2, longopt))
{
++loc;
return true;
}
else
return false;
}
else if(shortopt && argv[loc][1]==shortopt && argv[loc][2]='\0')
{
++loc;
return true;
}
else
return false;
}
else
return false;
}
};
class dashopt_witharg_parser:public arg_parser
{
char shortopt;
char *longopt;
sigc::slot1<void, std::string> callback;
public:
bool parse_arg(int argc, char *argv[], int &loc)
{
if(argv[loc][0]=='-')
{
if(argv[loc][1]=='-')
{
if(longopt && !strcmp(argv[loc]+2, longopt))
{
++loc;
return true;
}
else
return false;
}
else if(shortopt && argv[loc][1]==shortopt && argv[loc][2]='\0')
{
++loc;
return true;
}
else
return false;
}
else
return false;
}
};
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