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dicts - using the various subcommands
Arrays and dicts example from a Well House Consultants training course
More on Arrays and dicts [link]
Source code: dicdem Module: T208
proc timetable {type schedule} { puts "\n----------> $type" dict for {where when} $schedule { puts [format "%-25s %11s" $where $when] } } set mydata [dict create "Cardiff Central" 06:28 Newport 06:42 \ "Severn Tunnel Junction" 06:53 Pilning 07:03 Patchway 07:06] dict lappend mydata {Filton Abbey Wood} 07:09 set moredata [dict create "Bristol Temple Meads" dunno Bath\ Spa 07:35 \ Bradford-on-Avon 07:47 Trowbridge 07:53 Westbury 08:00] # Merge two dictionaries set allway [dict merge $mydata $moredata] timetable original $allway # lappend only adds ONE item - so this has to be 2 separate commands dict lappend allway Warminster 08:09 dict lappend allway Salisbury 08:32 # Add to existing value within the dictionary dict append allway Westbury -08:01 # Remove an item from the dictionary set allway [dict remove $allway Pilning] # Replace a value set allway [dict replace $allway {Bristol Temple Meads} 07:22] timetable modified $allway # search by value and return a shorter dict set before_8 [dict filter $allway value {0[0-7]*} ] timetable "before 8 a.m." $before_8 # How many items? set sz [dict size $before_8] puts "There are $sz items in that dict" Learn about this subject
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