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Ingy döt Net 2023-07-01 11:58:00 -04:00
parent 7387c8f97b
commit cb5bb5e222
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15
Task/Optional-parameters/Tcl/optional-parameters-1.tcl Normal file
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proc tablesort {table {ordering ""} {column 0} {reverse 0}} {
set direction [expr {$reverse ? "-decreasing" : "-increasing"}]
if {$ordering ne ""} {
lsort -command $ordering $direction -index $column $table
} else {
lsort $direction -index $column $table
}
}
puts [tablesort $data]
puts [tablesort $data "" 1]
puts [tablesort $data "" 0 1]
puts [tablesort $data {
apply {{a b} {expr {[string length $a]-[string length $b]}}}
}]

18
Task/Optional-parameters/Tcl/optional-parameters-2.tcl Normal file
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package require Tcl 8.5; # Only for the list expansion syntax
proc tablesort {table args} {
array set opt {ordering "" column 0 reverse 0}
array set opt $args
set pars [list -index $opt(column)]
if {$opt(reverse)} {lappend pars -decreasing}
if {$opt(ordering) ne ""} {lappend pars -command $opt(ordering)}
lsort {*}$pars $table
}
puts [tablesort $data]
puts [tablesort $data column 1]
puts [tablesort $data column 0]
puts [tablesort $data column 0 reverse 1]
puts [tablesort $data ordering {
apply {{a b} {expr {[string length $b]-[string length $a]}}}
}]