/usr/share/tcltk/tcllib1.17/cmdline/cmdline.tcl is in tcllib 1.17-dfsg-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 751 752 753 754 755 756 757 758 759 760 761 762 763 764 765 766 767 768 769 770 771 772 773 774 775 776 777 778 779 780 781 782 783 784 785 786 787 788 789 790 791 792 793 794 795 796 797 798 799 800 801 802 803 804 805 806 807 808 809 810 811 812 813 814 815 816 817 818 819 820 821 822 823 824 825 826 827 828 829 830 831 832 833 834 835 836 837 838 839 840 841 842 843 844 845 846 847 848 849 850 851 852 853 854 855 856 857 858 859 860 861 862 863 864 865 866 867 868 869 870 871 872 873 874 875 876 877 878 879 880 881 882 883 884 885 886 887 888 889 890 891 892 893 894 895 896 897 898 899 900 901 902 903 904 905 906 907 908 909 910 911 912 | # cmdline.tcl --
#
# This package provides a utility for parsing command line
# arguments that are processed by our various applications.
# It also includes a utility routine to determine the
# application name for use in command line errors.
#
# Copyright (c) 1998-2000 by Ajuba Solutions.
# Copyright (c) 2001-2015 by Andreas Kupries <andreas_kupries@users.sf.net>.
# Copyright (c) 2003 by David N. Welton <davidw@dedasys.com>
# See the file "license.terms" for information on usage and redistribution
# of this file, and for a DISCLAIMER OF ALL WARRANTIES.
#
# RCS: @(#) $Id: cmdline.tcl,v 1.28 2011/02/23 17:41:52 andreas_kupries Exp $
package require Tcl 8.2
package provide cmdline 1.5
namespace eval ::cmdline {
namespace export getArgv0 getopt getKnownOpt getfiles getoptions \
getKnownOptions usage
}
# ::cmdline::getopt --
#
# The cmdline::getopt 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 proceed.
#
# Arguments:
# argvVar Name of the argv list that you
# want to process. If options are found the
# arg list is modified and the processed arguments
# are removed from the start of the list.
# optstring A list of command options that the application
# will accept. If the option ends in ".arg" the
# getopt routine 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 The variable pointed to by optVar
# contains the option that was found (without the
# leading '-' and without the .arg extension).
# valVar Upon success, the variable pointed to by valVar
# contains the value for the specified option.
# This value comes from the command line for .arg
# options, otherwise the value is 1.
# If getopt fails, the valVar is filled with an
# error message.
#
# Results:
# The getopt function returns 1 if an option was found, 0 if no more
# options were found, and -1 if an error occurred.
proc ::cmdline::getopt {argvVar optstring optVar valVar} {
upvar 1 $argvVar argsList
upvar 1 $optVar option
upvar 1 $valVar value
set result [getKnownOpt argsList $optstring option value]
if {$result < 0} {
# Collapse unknown-option error into any-other-error result.
set result -1
}
return $result
}
# ::cmdline::getKnownOpt --
#
# The cmdline::getKnownOpt 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 proceed.
#
# Arguments:
# argvVar Name of the argv list that you
# want to process. If options are found the
# arg list is modified and the processed arguments
# are removed from the start of the list. Note that
# unknown options and the args that follow them are
# left in this list.
# optstring A list of command options that the application
# will accept. If the option ends in ".arg" the
# getopt routine 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 The variable pointed to by optVar
# contains the option that was found (without the
# leading '-' and without the .arg extension).
# valVar Upon success, the variable pointed to by valVar
# contains the value for the specified option.
# This value comes from the command line for .arg
# options, otherwise the value is 1.
# If getopt fails, the valVar is filled with an
# error message.
#
# Results:
# The getKnownOpt function returns 1 if an option was found,
# 0 if no more options were found, -1 if an unknown option was
# encountered, and -2 if any other error occurred.
proc ::cmdline::getKnownOpt {argvVar optstring optVar valVar} {
upvar 1 $argvVar argsList
upvar 1 $optVar option
upvar 1 $valVar value
# default settings for a normal return
set value ""
set option ""
set result 0
# check if we're past the end of the args list
if {[llength $argsList] != 0} {
# if we got -- or an option that doesn't begin with -, return (skipping
# the --). otherwise process the option arg.
switch -glob -- [set arg [lindex $argsList 0]] {
"--" {
set argsList [lrange $argsList 1 end]
}
"--*" -
"-*" {
set option [string range $arg 1 end]
if {[string equal [string range $option 0 0] "-"]} {
set option [string range $arg 2 end]
}
# support for format: [-]-option=value
set idx [string first "=" $option 1]
if {$idx != -1} {
set _val [string range $option [expr {$idx+1}] end]
set option [string range $option 0 [expr {$idx-1}]]
}
if {[lsearch -exact $optstring $option] != -1} {
# Booleans are set to 1 when present
set value 1
set result 1
set argsList [lrange $argsList 1 end]
} elseif {[lsearch -exact $optstring "$option.arg"] != -1} {
set result 1
set argsList [lrange $argsList 1 end]
if {[info exists _val]} {
set value $_val
} elseif {[llength $argsList]} {
set value [lindex $argsList 0]
set argsList [lrange $argsList 1 end]
} else {
set value "Option \"$option\" requires an argument"
set result -2
}
} else {
# Unknown option.
set value "Illegal option \"-$option\""
set result -1
}
}
default {
# Skip ahead
}
}
}
return $result
}
# ::cmdline::getoptions --
#
# Process a set of command line options, filling in defaults
# for those not specified. This also generates an error message
# that lists the allowed flags if an incorrect flag is specified.
#
# Arguments:
# arglistVar The name of the argument list, typically argv.
# We remove all known options and their args from it.
# optlist A list-of-lists where each element specifies an option
# in the form:
# (where flag takes no argument)
# flag comment
#
# (or where flag takes an argument)
# 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.
# usage Text to include in the usage display. Defaults to
# "options:"
#
# Results
# Name value pairs suitable for using with array set.
proc ::cmdline::getoptions {arglistVar optlist {usage options:}} {
upvar 1 $arglistVar argv
set opts [GetOptionDefaults $optlist result]
set argc [llength $argv]
while {[set err [getopt argv $opts opt arg]]} {
if {$err < 0} {
set result(?) ""
break
}
set result($opt) $arg
}
if {[info exist result(?)] || [info exists result(help)]} {
Error [usage $optlist $usage] USAGE
}
return [array get result]
}
# ::cmdline::getKnownOptions --
#
# Process a set of command line options, filling in defaults
# for those not specified. This ignores unknown flags, but generates
# an error message that lists the correct usage if a known option
# is used incorrectly.
#
# Arguments:
# arglistVar The name of the argument list, typically argv. This
# We remove all known options and their args from it.
# optlist 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.
# usage Text to include in the usage display. Defaults to
# "options:"
#
# Results
# Name value pairs suitable for using with array set.
proc ::cmdline::getKnownOptions {arglistVar optlist {usage options:}} {
upvar 1 $arglistVar argv
set opts [GetOptionDefaults $optlist result]
# As we encounter them, keep the unknown options and their
# arguments in this list. Before we return from this procedure,
# we'll prepend these args to the argList so that the application
# doesn't lose them.
set unknownOptions [list]
set argc [llength $argv]
while {[set err [getKnownOpt argv $opts opt arg]]} {
if {$err == -1} {
# Unknown option.
# Skip over any non-option items that follow it.
# For now, add them to the list of unknownOptions.
lappend unknownOptions [lindex $argv 0]
set argv [lrange $argv 1 end]
while {([llength $argv] != 0) \
&& ![string match "-*" [lindex $argv 0]]} {
lappend unknownOptions [lindex $argv 0]
set argv [lrange $argv 1 end]
}
} elseif {$err == -2} {
set result(?) ""
break
} else {
set result($opt) $arg
}
}
# Before returning, prepend the any unknown args back onto the
# argList so that the application doesn't lose them.
set argv [concat $unknownOptions $argv]
if {[info exist result(?)] || [info exists result(help)]} {
Error [usage $optlist $usage] USAGE
}
return [array get result]
}
# ::cmdline::GetOptionDefaults --
#
# This internal procedure processes the option list (that was passed to
# the getopt or getKnownOpt procedure). The defaultArray gets an index
# for each option in the option list, the value of which is the option's
# default value.
#
# Arguments:
# optlist 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.
# defaultArrayVar The name of the array in which to put argument defaults.
#
# Results
# Name value pairs suitable for using with array set.
proc ::cmdline::GetOptionDefaults {optlist defaultArrayVar} {
upvar 1 $defaultArrayVar result
set opts {? help}
foreach opt $optlist {
set name [lindex $opt 0]
if {[regsub -- {\.secret$} $name {} name] == 1} {
# Need to hide this from the usage display and getopt
}
lappend opts $name
if {[regsub -- {\.arg$} $name {} name] == 1} {
# Set defaults for those that take values.
set default [lindex $opt 1]
set result($name) $default
} else {
# The default for booleans is false
set result($name) 0
}
}
return $opts
}
# ::cmdline::usage --
#
# Generate an error message that lists the allowed flags.
#
# Arguments:
# optlist As for cmdline::getoptions
# usage Text to include in the usage display. Defaults to
# "options:"
#
# Results
# A formatted usage message
proc ::cmdline::usage {optlist {usage {options:}}} {
set str "[getArgv0] $usage\n"
foreach opt [concat $optlist \
{{- "Forcibly stop option processing"} {help "Print this message"} {? "Print this message"}}] {
set name [lindex $opt 0]
if {[regsub -- {\.secret$} $name {} name] == 1} {
# Hidden option
continue
}
if {[regsub -- {\.arg$} $name {} name] == 1} {
set default [lindex $opt 1]
set comment [lindex $opt 2]
append str [format " %-20s %s <%s>\n" "-$name value" \
$comment $default]
} else {
set comment [lindex $opt 1]
append str [format " %-20s %s\n" "-$name" $comment]
}
}
return $str
}
# ::cmdline::getfiles --
#
# Given a list of file arguments from the command line, compute
# the set of valid files. On windows, file globbing is performed
# on each argument. On Unix, only file existence is tested. If
# a file argument produces no valid files, a warning is optionally
# generated.
#
# This code also uses the full path for each file. If not
# given it prepends [pwd] to the filename. This ensures that
# these files will never conflict with files in our zip file.
#
# Arguments:
# patterns The file patterns specified by the user.
# quiet If this flag is set, no warnings will be generated.
#
# Results:
# Returns the list of files that match the input patterns.
proc ::cmdline::getfiles {patterns quiet} {
set result {}
if {$::tcl_platform(platform) == "windows"} {
foreach pattern $patterns {
set pat [file join $pattern]
set files [glob -nocomplain -- $pat]
if {$files == {}} {
if {! $quiet} {
puts stdout "warning: no files match \"$pattern\""
}
} else {
foreach file $files {
lappend result $file
}
}
}
} else {
set result $patterns
}
set files {}
foreach file $result {
# Make file an absolute path so that we will never conflict
# with files that might be contained in our zip file.
set fullPath [file join [pwd] $file]
if {[file isfile $fullPath]} {
lappend files $fullPath
} elseif {! $quiet} {
puts stdout "warning: no files match \"$file\""
}
}
return $files
}
# ::cmdline::getArgv0 --
#
# This command returns the "sanitized" version of argv0. It will strip
# off the leading path and remove the ".bin" extensions that our apps
# use because they must be wrapped by a shell script.
#
# Arguments:
# None.
#
# Results:
# The application name that can be used in error messages.
proc ::cmdline::getArgv0 {} {
global argv0
set name [file tail $argv0]
return [file rootname $name]
}
##
# ### ### ### ######### ######### #########
##
# Now the typed versions of the above commands.
##
# ### ### ### ######### ######### #########
##
# typedCmdline.tcl --
#
# This package provides a utility for parsing typed command
# line arguments that may be processed by various applications.
#
# Copyright (c) 2000 by Ross Palmer Mohn.
# See the file "license.terms" for information on usage and redistribution
# of this file, and for a DISCLAIMER OF ALL WARRANTIES.
#
# RCS: @(#) $Id: cmdline.tcl,v 1.28 2011/02/23 17:41:52 andreas_kupries Exp $
namespace eval ::cmdline {
namespace export typedGetopt typedGetoptions typedUsage
# variable cmdline::charclasses --
#
# Create regexp list of allowable character classes
# from "string is" error message.
#
# Results:
# String of character class names separated by "|" characters.
variable charclasses
#checker exclude badKey
catch {string is . .} charclasses
variable dummy
regexp -- {must be (.+)$} $charclasses dummy charclasses
regsub -all -- {, (or )?} $charclasses {|} charclasses
unset dummy
}
# ::cmdline::typedGetopt --
#
# The cmdline::typedGetopt works in a fashion like the standard
# C based getopt function. Given an option string and a
# pointer to a list of args this command will process the
# first argument and return info on how to proceed. In addition,
# you may specify a type for the argument to each option.
#
# Arguments:
# argvVar Name of the argv list that you want to process.
# If options are found, the arg list is modified
# and the processed arguments are removed from the
# start of the list.
#
# optstring A list of command options that the application
# will accept. If the option ends in ".xxx", where
# xxx is any valid character class to the tcl
# command "string is", then typedGetopt routine will
# use the next argument as a typed argument to the
# option. The argument must match the specified
# character classes (e.g. integer, double, boolean,
# xdigit, etc.). Alternatively, you may specify
# ".arg" for an untyped argument.
#
# optVar Upon success, the variable pointed to by optVar
# contains the option that was found (without the
# leading '-' and without the .xxx extension). If
# typedGetopt fails the variable is set to the empty
# string. SOMETIMES! Different for each -value!
#
# argVar Upon success, the variable pointed to by argVar
# contains the argument for the specified option.
# If typedGetopt fails, the variable is filled with
# an error message.
#
# Argument type syntax:
# Option that takes no argument.
# foo
#
# Option that takes a typeless argument.
# foo.arg
#
# Option that takes a typed argument. Allowable types are all
# valid character classes to the tcl command "string is".
# Currently must be one of alnum, alpha, ascii, control,
# boolean, digit, double, false, graph, integer, lower, print,
# punct, space, true, upper, wordchar, or xdigit.
# foo.double
#
# Option that takes an argument from a list.
# foo.(bar|blat)
#
# Argument quantifier syntax:
# Option that takes an optional argument.
# foo.arg?
#
# Option that takes a list of arguments terminated by "--".
# foo.arg+
#
# Option that takes an optional list of arguments terminated by "--".
# foo.arg*
#
# Argument quantifiers work on all argument types, so, for
# example, the following is a valid option specification.
# foo.(bar|blat|blah)?
#
# Argument syntax miscellany:
# Options may be specified on the command line using a unique,
# shortened version of the option name. Given that program foo
# has an option list of {bar.alpha blah.arg blat.double},
# "foo -b fob" returns an error, but "foo -ba fob"
# successfully returns {bar fob}
#
# Results:
# The typedGetopt function returns one of the following:
# 1 a valid option was found
# 0 no more options found to process
# -1 invalid option
# -2 missing argument to a valid option
# -3 argument to a valid option does not match type
#
# Known Bugs:
# When using options which include special glob characters,
# you must use the exact option. Abbreviating it can cause
# an error in the "cmdline::prefixSearch" procedure.
proc ::cmdline::typedGetopt {argvVar optstring optVar argVar} {
variable charclasses
upvar $argvVar argsList
upvar $optVar retvar
upvar $argVar optarg
# default settings for a normal return
set optarg ""
set retvar ""
set retval 0
# check if we're past the end of the args list
if {[llength $argsList] != 0} {
# if we got -- or an option that doesn't begin with -, return (skipping
# the --). otherwise process the option arg.
switch -glob -- [set arg [lindex $argsList 0]] {
"--" {
set argsList [lrange $argsList 1 end]
}
"-*" {
# Create list of options without their argument extensions
set optstr ""
foreach str $optstring {
lappend optstr [file rootname $str]
}
set _opt [string range $arg 1 end]
set i [prefixSearch $optstr [file rootname $_opt]]
if {$i != -1} {
set opt [lindex $optstring $i]
set quantifier "none"
if {[regexp -- {\.[^.]+([?+*])$} $opt dummy quantifier]} {
set opt [string range $opt 0 end-1]
}
if {[string first . $opt] == -1} {
set retval 1
set retvar $opt
set argsList [lrange $argsList 1 end]
} elseif {[regexp -- "\\.(arg|$charclasses)\$" $opt dummy charclass]
|| [regexp -- {\.\(([^)]+)\)} $opt dummy charclass]} {
if {[string equal arg $charclass]} {
set type arg
} elseif {[regexp -- "^($charclasses)\$" $charclass]} {
set type class
} else {
set type oneof
}
set argsList [lrange $argsList 1 end]
set opt [file rootname $opt]
while {1} {
if {[llength $argsList] == 0
|| [string equal "--" [lindex $argsList 0]]} {
if {[string equal "--" [lindex $argsList 0]]} {
set argsList [lrange $argsList 1 end]
}
set oneof ""
if {$type == "arg"} {
set charclass an
} elseif {$type == "oneof"} {
set oneof ", one of $charclass"
set charclass an
}
if {$quantifier == "?"} {
set retval 1
set retvar $opt
set optarg ""
} elseif {$quantifier == "+"} {
set retvar $opt
if {[llength $optarg] < 1} {
set retval -2
set optarg "Option requires at least one $charclass argument$oneof -- $opt"
} else {
set retval 1
}
} elseif {$quantifier == "*"} {
set retval 1
set retvar $opt
} else {
set optarg "Option requires $charclass argument$oneof -- $opt"
set retvar $opt
set retval -2
}
set quantifier ""
} elseif {($type == "arg")
|| (($type == "oneof")
&& [string first "|[lindex $argsList 0]|" "|$charclass|"] != -1)
|| (($type == "class")
&& [string is $charclass [lindex $argsList 0]])} {
set retval 1
set retvar $opt
lappend optarg [lindex $argsList 0]
set argsList [lrange $argsList 1 end]
} else {
set oneof ""
if {$type == "arg"} {
set charclass an
} elseif {$type == "oneof"} {
set oneof ", one of $charclass"
set charclass an
}
set optarg "Option requires $charclass argument$oneof -- $opt"
set retvar $opt
set retval -3
if {$quantifier == "?"} {
set retval 1
set optarg ""
}
set quantifier ""
}
if {![regexp -- {[+*]} $quantifier]} {
break;
}
}
} else {
Error \
"Illegal option type specification: must be one of $charclasses" \
BAD OPTION TYPE
}
} else {
set optarg "Illegal option -- $_opt"
set retvar $_opt
set retval -1
}
}
default {
# Skip ahead
}
}
}
return $retval
}
# ::cmdline::typedGetoptions --
#
# Process a set of command line options, filling in defaults
# for those not specified. This also generates an error message
# that lists the allowed options if an incorrect option is
# specified.
#
# Arguments:
# arglistVar The name of the argument list, typically argv
# optlist A list-of-lists where each element specifies an option
# in the form:
#
# option default comment
#
# Options formatting is as described for the optstring
# argument of typedGetopt. Default is for optionally
# specifying a default value. Comment is for optionally
# specifying a comment for the usage display. The
# options "--", "-help", and "-?" are automatically included
# in optlist.
#
# Argument syntax miscellany:
# Options formatting and syntax is as described in typedGetopt.
# There are two additional suffixes that may be applied when
# passing options to typedGetoptions.
#
# You may add ".multi" as a suffix to any option. For options
# that take an argument, this means that the option may be used
# more than once on the command line and that each additional
# argument will be appended to a list, which is then returned
# to the application.
# foo.double.multi
#
# If a non-argument option is specified as ".multi", it is
# toggled on and off for each time it is used on the command
# line.
# foo.multi
#
# If an option specification does not contain the ".multi"
# suffix, it is not an error to use an option more than once.
# In this case, the behavior for options with arguments is that
# the last argument is the one that will be returned. For
# options that do not take arguments, using them more than once
# has no additional effect.
#
# Options may also be hidden from the usage display by
# appending the suffix ".secret" to any option specification.
# Please note that the ".secret" suffix must be the last suffix,
# after any argument type specification and ".multi" suffix.
# foo.xdigit.multi.secret
#
# Results
# Name value pairs suitable for using with array set.
proc ::cmdline::typedGetoptions {arglistVar optlist {usage options:}} {
variable charclasses
upvar 1 $arglistVar argv
set opts {? help}
foreach opt $optlist {
set name [lindex $opt 0]
if {[regsub -- {\.secret$} $name {} name] == 1} {
# Remove this extension before passing to typedGetopt.
}
if {[regsub -- {\.multi$} $name {} name] == 1} {
# Remove this extension before passing to typedGetopt.
regsub -- {\..*$} $name {} temp
set multi($temp) 1
}
lappend opts $name
if {[regsub -- "\\.(arg|$charclasses|\\(.+).?\$" $name {} name] == 1} {
# Set defaults for those that take values.
# Booleans are set just by being present, or not
set dflt [lindex $opt 1]
if {$dflt != {}} {
set defaults($name) $dflt
}
}
}
set argc [llength $argv]
while {[set err [typedGetopt argv $opts opt arg]]} {
if {$err == 1} {
if {[info exists result($opt)]
&& [info exists multi($opt)]} {
# Toggle boolean options or append new arguments
if {$arg == ""} {
unset result($opt)
} else {
set result($opt) "$result($opt) $arg"
}
} else {
set result($opt) "$arg"
}
} elseif {($err == -1) || ($err == -3)} {
Error [typedUsage $optlist $usage] USAGE
} elseif {$err == -2 && ![info exists defaults($opt)]} {
Error [typedUsage $optlist $usage] USAGE
}
}
if {[info exists result(?)] || [info exists result(help)]} {
Error [typedUsage $optlist $usage] USAGE
}
foreach {opt dflt} [array get defaults] {
if {![info exists result($opt)]} {
set result($opt) $dflt
}
}
return [array get result]
}
# ::cmdline::typedUsage --
#
# Generate an error message that lists the allowed flags,
# type of argument taken (if any), default value (if any),
# and an optional description.
#
# Arguments:
# optlist As for cmdline::typedGetoptions
#
# Results
# A formatted usage message
proc ::cmdline::typedUsage {optlist {usage {options:}}} {
variable charclasses
set str "[getArgv0] $usage\n"
foreach opt [concat $optlist \
{{help "Print this message"} {? "Print this message"}}] {
set name [lindex $opt 0]
if {[regsub -- {\.secret$} $name {} name] == 1} {
# Hidden option
} else {
if {[regsub -- {\.multi$} $name {} name] == 1} {
# Display something about multiple options
}
if {[regexp -- "\\.(arg|$charclasses)\$" $name dummy charclass]
|| [regexp -- {\.\(([^)]+)\)} $opt dummy charclass]} {
regsub -- "\\..+\$" $name {} name
set comment [lindex $opt 2]
set default "<[lindex $opt 1]>"
if {$default == "<>"} {
set default ""
}
append str [format " %-20s %s %s\n" "-$name $charclass" \
$comment $default]
} else {
set comment [lindex $opt 1]
append str [format " %-20s %s\n" "-$name" $comment]
}
}
}
return $str
}
# ::cmdline::prefixSearch --
#
# Search a Tcl list for a pattern; searches first for an exact match,
# and if that fails, for a unique prefix that matches the pattern
# (i.e, first "lsearch -exact", then "lsearch -glob $pattern*"
#
# Arguments:
# list list of words
# pattern word to search for
#
# Results:
# Index of found word is returned. If no exact match or
# unique short version is found then -1 is returned.
proc ::cmdline::prefixSearch {list pattern} {
# Check for an exact match
if {[set pos [::lsearch -exact $list $pattern]] > -1} {
return $pos
}
# Check for a unique short version
set slist [lsort $list]
if {[set pos [::lsearch -glob $slist $pattern*]] > -1} {
# What if there is nothing for the check variable?
set check [lindex $slist [expr {$pos + 1}]]
if {[string first $pattern $check] != 0} {
return [::lsearch -exact $list [lindex $slist $pos]]
}
}
return -1
}
# ::cmdline::Error --
#
# Internal helper to throw errors with a proper error-code attached.
#
# Arguments:
# message text of the error message to throw.
# args additional parts of the error code to use,
# with CMDLINE as basic prefix added by this command.
#
# Results:
# An error is thrown, always.
proc ::cmdline::Error {message args} {
return -code error -errorcode [linsert $args 0 CMDLINE] $message
}
|