[SOLVED] vimscript; remove file suffix with substitute()

porphyry5 · 10-14-2012, 09:32 AM

On a line containing

Code:

Parameters2.html
:s/\..*//
produces
Parameters2

But using substitute()

Code:

:echo substitute("Parameters2.html", "\..*", "", "")

:echo substitute("Parameters2.html", "\..*$", "", "")

:echo substitute("Parameters2.html", "\([^.]\)*\..*$", "\1", "")
Parameters2.html
:echo substitute("Parameters2.html", "\([^\.]\)*\..*$", "\1", "")
Parameters2.html

How should I be writing this?

markush · 10-14-2012, 05:04 PM

Hi,

Code:

:echo substitute("Parameters2.html", "[.].*", "", "")

this will work.

Markus

porphyry5 · 10-15-2012, 09:38 AM

Quote:

Originally Posted by markush

Hi,

Code:

:echo substitute("Parameters2.html", "[.].*", "", "")

this will work.

Markus

Many thanks. I also found

Code:

:echo expand("%:r")

to solve my immediate problem, but its very useful to know this method to get substitute() to live up to the promise of its :help description.

But for general application. I found the problem concerns the type of quoting used on the regex

Code:

:echo substitute("Parameters2.html", '\..*', "", "")
Parameters2
or
:echo substitute("Parameters2.html", "\\..*", "", "")
Parameters2

i.e. for double quoted strings, double the backslashes; or use single quoted strings.
:h expr-string
:h literal-string