XrdOucArgs Class Reference

#include <XrdOucArgs.hh>

Collaboration diagram for XrdOucArgs:

Public Member Functions
	XrdOucArgs (XrdSysError *erp, const char *etxt, const char *StdOpts, const char *optw=0,...)
	~XrdOucArgs ()
char *	getarg ()
char	getopt ()
void	Set (char *arglist)
void	Set (int argc, char **argv)

Public Attributes
char *	argval

Detailed Description

Definition at line 41 of file XrdOucArgs.hh.

Constructor & Destructor Documentation

XrdOucArgs()

XrdOucArgs::XrdOucArgs	(	XrdSysError *	erp,
		const char *	etxt,
		const char *	StdOpts,
		const char *	optw = 0,
			... )

Definition at line 86 of file XrdOucArgs.cc.

                                         : arg_stream(0)
{
   va_list ap;
   const char *optm;
   int minl;
 
// Do the standard initialization
//
   inStream = Argc = Aloc = 0; vopts = curopt = 0; endopts = 1;
   optp = 0; eDest = erp;
   epfx = strdup(etxt ? etxt : "");
 
// Process the valid opts
//
   if (StdOpts && *StdOpts == ':') {missarg = ':'; StdOpts++;}
      else missarg = '?';
   vopts = strdup(StdOpts ? StdOpts : "");
 
// Handle list of extended options, if any
//
   if (optw)
      {va_start(ap, optw);
       while(optw)
            {minl = va_arg(ap, int);
             optm = va_arg(ap, const char *);
             optp = new XrdOucArgsXO(optp, optw, minl, optm);
             optw = va_arg(ap, const char *);
            }
       va_end(ap);
      }
}

~XrdOucArgs()

XrdOucArgs::~XrdOucArgs

(

)

Definition at line 126 of file XrdOucArgs.cc.

             {if (vopts) free(vopts);
              if (optp) delete optp;
              free(epfx);
             }

Member Function Documentation

getarg()

char * XrdOucArgs::getarg

(

)

Definition at line 136 of file XrdOucArgs.cc.

{
 
// Return argument from whatever source we have
//
   if (inStream) return arg_stream.GetToken();
   if (Aloc >= Argc) return (char *)0;
   argval = Argv[Aloc++];
   return argval;
}

References argval.

Referenced by XrdFrmAdmin::Audit(), XrdFrmAdmin::Chksum(), main(), XrdFrmAdmin::MakeLF(), XrdFrmAdmin::Mark(), XrdFrmAdmin::Mmap(), XrdFrmAdmin::Pin(), and XrdFrmAdmin::Remove().

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getopt()

char XrdOucArgs::getopt

(

)

Definition at line 151 of file XrdOucArgs.cc.

{
   char optbuff[3] = {'-', 'x', '\0'}, *optspec, *arglist, *optname = 0;
 
// Check if we really have any more options
//
   if (endopts) return -1;
 
// Get next option from whatever source we have
//
   if (curopt && *curopt) curopt++;
      else if (inStream)
              {if ((optname = curopt = arg_stream.GetToken(&arglist)))
                  {if (*curopt != '-') {arg_stream.RetToken(); curopt = 0;}
                      else curopt++;
                  }
              }
              else if (Aloc >= Argc || *Argv[Aloc] != '-') curopt = 0;
                      else optname = curopt = Argv[Aloc++]+1;
 
// Check if we really have an option here
//
   if (!curopt) {endopts = 1; return -1;}
   if (!*curopt)
      {if (eDest) eDest->Say(epfx, "Option letter missing after '-'.");
       endopts = 1;
       return '?';
      }
 
// Check for extended options or single letter option
//
   if (*curopt == ':' || *curopt == '.') optspec = 0;
      else {if (optp) {optspec = *optp%curopt; curopt = 0;}
               else {optspec = index(vopts, int(*curopt));
                     optbuff[1] = *curopt; optname = optbuff; curopt++;
                    }
           }
   if (!optspec)
      {char buff[500];
       if (eDest)
          {sprintf(buff, "Invalid option, '%s'.", optname);
           eDest->Say(epfx, buff);
          }
       endopts = 1;
       return '?';
      }
 
// Check if this option requires an argument
//
   if (optspec[1] != ':' && optspec[1] != '.') return *optspec;
 
// Get the argument from whatever source we have
//
   if (inStream) argval = arg_stream.GetToken();
      else argval = (Aloc < Argc ? Argv[Aloc++] : 0);
 
// If we have a valid argument, then we are all done
//
   if (argval)
      {if (!*argval) argval = 0;
         else if (*argval != '-') return *optspec;
      }
 
// If argument is optional, let it go
//
   if (optspec[1] == '.')
      {if (argval && *argval == '-')
          {if (inStream) arg_stream.RetToken();
             else Aloc--;
          }
       argval = 0;
       return *optspec;
      }
 
// Complain about a missing argument
//
   if (eDest) eDest->Say(epfx, "Value not specified for '", optname, "'.");
   endopts = 1;
   return missarg;
}

References argval.

Referenced by main().

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Set() [1/2]

void XrdOucArgs::Set

(

char *

arglist

)

Definition at line 236 of file XrdOucArgs.cc.

{
   inStream = 1; 
   arg_stream.Attach(arglist);
   curopt = 0;
   endopts = !arg_stream.GetLine();
}

Referenced by main().

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Set() [2/2]

void XrdOucArgs::Set	(	int	argc,
		char **	argv )

Definition at line 244 of file XrdOucArgs.cc.

{
   inStream = 0; 
   Argc = argc; Argv = argv; Aloc = 0;
   curopt = 0; endopts = 0;
   endopts = !argc;
}

Member Data Documentation

argval

char* XrdOucArgs::argval

Definition at line 102 of file XrdOucArgs.hh.

Referenced by getarg(), getopt(), and main().

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The documentation for this class was generated from the following files:

• XrdOucArgs.hh
• XrdOucArgs.cc