Saving one keystroke on entering command-line command - Revision history

Xaizek: /* When it works */ Describe when it works

2014-10-04T08:37:51Z

When it works: Describe when it works

Xaizek: Add a couple more examples

2014-10-04T08:30:43Z

Add a couple more examples

Xaizek: /* Why it works */ Describe why it works

2014-10-04T08:25:45Z

Why it works: Describe why it works

Xaizek: Initial outline of the page

2014-10-03T20:50:36Z

Initial outline of the page

New page

Here is a demonstration of one of probably not that well known property of Vim's command parser:

<source lang="vim">
" change directory to root of file system
:cd/
</source>

Note absence of space between name of the command (<code>:cd</code>) and its argument (<code>/</code>).

As one might guess, the same applies to Vifm.

==== Why it works ====

'''TODO:'''

==== When it works ====

'''TODO:'''

← Older revision		Revision as of 08:37, 4 October 2014
Line 25:		Line 25:
	==== When it works ====		==== When it works ====

−	'''~~TODO~~:'''	+	For any command when no ambiguity is created. Here is an example where it
		+	''does not'' work:
		+
		+	<source lang="vim">
		+	:commandname :echo $USER
		+	</source>
		+
		+	Here <code>command</code> is immediately followed by <code>name</code> leaving
		+	no changes for Vifm to figure out whether it's <code>:commandname</code> command
		+	or <code>:command</code> followed by its first argument <code>name</code>. It's
		+	not a technical problem to guess command names, but it would lead to semantic
		+	changes in the presense of <code>:commandname</code> command, which is
		+	undesireable.

@@ Line 4: / Line 4: @@
 " change directory to root of file system
 :cd/
 </source>

@@ Line 12: / Line 12: @@
 ==== Why it works ====
-'''TODO:'''
+Because of limited number of allowed characters in command names.  This makes
 ==== When it works ====
 '''TODO:'''