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1.5. Tab completion

By using the tab function key in the CLI the names of commands, options, objects and object prop-

erties can be automatically completed. If the text entered before pressing tab only matches one pos-

sible item, e.g. "activate" is the only match for "acti" if a command is expected, the name will be

autocompleted. Should there be more than one match the part common to all matches will be com-

pleted. At this point the user can either enter more characters or press tab again, which will display a

list of the possible completions. This can also be done without entering any characters, but the res-

ulting list might be long if there are many possible completions, e.g. all commands.

Example 1.4. Tab completion

An example of tab completion when using the add command:

gw-world:/> add Add (tab)

gw-world:/> add Address ("ress" was autocompleted)

gw-world:/> add Address i (tab)

gw-world:/> add Address IP4 ("IP4" was autocompleted)

gw-world:/> add Address IP4 (tab, or double tab if IP4 were entered manually)

A list of all types starting with IP4 is listed.

gw-world:/> add Address IP4a (tab)

gw-world:/> add Address IP4Address ("Address" was autocompleted)

gw-world:/> add Address IP4Address example_ip a (tab)

gw-world:/> add Address IP4Address example_ip Address= ("Address=" was autocompleted)

gw-world:/> add Address IP4Address example_ip Address=1.2.3.4

Tab completion of references:

gw-world:/> set Address IP4Group examplegroup Members= (tab, tab)

A list of valid objects is displayed.

gw-world:/> set Address IP4Group examplegroup Members=e (tab)

gw-world:/> set Address IP4Group examplegroup Members=example_ip

("xample_ip" was autocompleted)

1.5.1. Inline help

It is possible to get help about available properties of configuration objects while a command line is

being typed by using the ? character. Write ? instead of a property name and press tab and a help

text for the available properties is shown. If ? is typed in stead of a property value and tab is pressed

a help text for that property which contains more information such as data type, default value, etc. is

displayed.

Example 1.5. Inline help

Get inline help for all properties of an IP4Address:

gw-world:/> set IP4Address example_ip ? (tab)

A help text describing all available properties is displayed.

Getting inline help for the Address property:

gw-world:/> set IP4Address example_ip Address=? (tab)

A more detailed help text about Address is displayed.

1.5.2. Autocompleting current value and default value

Another special character that can be used together with tab completion is <. If < is entered instead

of a property value and tab is pressed it will be replaced by the current value of that property. This is

1.5. Tab completion Chapter 1. Introduction

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