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optionProcess(3)


NAME

   optionProcess - this is the main option processing routine

SYNOPSIS

   #include <your-opts.h>
   cc [...] -o outfile infile.c -lopts [...]

   int optionProcess(tOptions * opts, int a_ct, char ** a_v);

DESCRIPTION

   This  is  the  main entry point for processing options.  It is intended
   that this procedure be called once at the beginning of the execution of
   a  program.   Depending  on  options  selected earlier, it is sometimes
   necessary  to  stop  and  restart  option  processing,  or  to   select
   completely different sets of options.  This can be done easily, but you
   generally do not want to do this.

   The number of arguments processed always includes the program name.  If
   one  of  the  arguments  is "--", then it is counted and the processing
   stops.  If an error was encountered and errors  are  to  be  tolerated,
   then the returned value is the index of the argument causing the error.
   A hyphen by itself ("-") will also cause processing to  stop  and  will
   not  be  counted  among the processed arguments.  A hyphen by itself is
   treated  as  an  operand.   Encountering  an   operand   stops   option
   processing.

   opts   program options descriptor

   a_ct   program arg count

   a_v    program arg vector

RETURN VALUE

   the count of the arguments processed

ERRORS

   Errors will cause diagnostics to be printed.  exit(3) may or may not be
   called.  It depends upon whether or not the options were generated with
   the   "allow-errors"   attribute,   or   if   the   ERRSKIP_OPTERR   or
   ERRSTOP_OPTERR macros were invoked.

SEE ALSO

   The info documentation for the -lopts library.
   ao_string_tokenize(3),      configFileLoad(3),       optionFileLoad(3),
   optionFindNextValue(3),        optionFindValue(3),       optionFree(3),
   optionGetValue(3),       optionLoadLine(3),        optionMemberList(3),
   optionNextValue(3),      optionOnlyUsage(3),     optionPrintVersion(3),
   optionPrintVersionAndReturn(3),  optionRestore(3),   optionSaveFile(3),
   optionSaveState(3),       optionUnloadNested(3),      optionVersion(3),
   strequate(3),      streqvcmp(3),      streqvmap(3),      strneqvcmp(3),
   strtransform(3),

                              2016-10-30                  optionProcess(3)



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