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RedHat 9 (Linux i386) - man page for cmdline (redhat section n)

cmdline(n)			 command line / option processing		       cmdline(n)

       cmdline - Procedures to process command lines and options.

       package require Tcl 8.2

       package require cmdline ?1.2?

       ::cmdline::getopt argvVar optstring optVar valVar

       ::cmdline::getKnownOpt argvVar optstring optVar valVar

       ::cmdline::getoptions arglistVar optlist ?usage?

       ::cmdline::getKnownOptions arglistVar optlist ?usage?

       ::cmdline::usage optlist ?usage?

       ::cmdline::getfiles patterns quiet


       This package provides commands to parse command lines and options.

       ::cmdline::getopt argvVar optstring optVar valVar
	      This  command  works in a fashion like the standard C based getopt function.  Given
	      an option string and a pointer to an array or args this command  will  process  the
	      first  argument  and  return  info  on  how to procede. The command returns 1 if an
	      option was found, 0 if no more options were found, and -1 if an error occurred.

	      argvVar contains the name of the argv list to process. If options are found the arg
	      list  is	modified  and  the  processed arguments are removed from the start of the

	      optstring contains a list of command options that the application will accept.   If
	      the  option ends in ".arg" the command will use the next argument as an argument to
	      the option.  Otherwise the option is a boolean that is set to 1 if present.

	      optVar refers to the variable the command will store the found option into (without
	      the leading '-' and without the .arg extension).

	      valVar  refers  to  the variable to store either the value for the specified option
	      into upon success or an error message in the case  of  failure.  The  stored  value
	      comes from the command line for .arg options, otherwise the value is 1.

       ::cmdline::getKnownOpt argvVar optstring optVar valVar
	      Like ::cmdline::getopt, but ignores any unknown options in the input.

       ::cmdline::getoptions arglistVar optlist ?usage?
	      Processes  the  set  of  command	line  options found in the list variable named by
	      arglistVar and fills in defaults for those not specified.  This also  generates  an
	      error  message  that lists the allowed flags if an incorrect flag is specified. The
	      optional usage-argument contains a string to include in front of the generated mes-
	      sage. If not present it defaults to "options:".

	      optlist  contains  a  list  of  lists where each element specifies an option in the
	      form: flag default comment.

	      If flag ends in ".arg" then the value is taken from the command line. Otherwise  it
	      is a boolean and appears in the result if present on the command line. If flag ends
	      in ".secret", it will not be displayed in the usage.

       ::cmdline::getKnownOptions arglistVar optlist ?usage?
	      Like ::cmdline::getoptions, but ignores any unknown options in the input.

       ::cmdline::usage optlist ?usage?
	      Generates and returns an error message that lists the  allowed  flags.  optlist  is
	      defined as for ::cmdline::getoptions. The optional usage-argument contains a string
	      to include in front of the  generated  message.  If  not	present  it  defaults  to

       ::cmdline::getfiles patterns quiet
	      Given  a	list  of  file patterns this command computes the set of valid files.  On
	      windows, file globbing is performed on each argument.  On Unix, only file existence
	      is  tested.   If	a  file argument produces no valid files, a warning is optionally
	      generated (set quiet to true).

	      This code also uses the full path for each file.	If not given it prepends the cur-
	      rent  working  directory	to the filename. This ensures that these files will never
	      conflict with files in a wrapped zip file. The last sentence  refers  to	the  pro-

	      This command returns the "sanitized" version of argv0.  It will strip off the lead-
	      ing path and removes the ".bin" extensions that the pro-apps use because they  must
	      be wrapped by a shell script.

       cmdline processing

cmdline 				       1.2				       cmdline(n)

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