On 07/05/12 04:08, John Beckett wrote:
At ':help :catch' we see this example to catch error E123:
:catch /^Vim\%((\a\+)\)\=:E123/
Isn't the above wrong? Why not just:
:catch /E123:/
The help example has ':E123' but it means 'E123:'?
What is the '^Vim...' stuff for? The messages on my system do
not start with 'Vim' (use :s/xxx/xxx/ on an empty line to see
error E486, or :xxx to see error E492).
Other examples at ':help :catch' seem wrong to me. The list is:
:catch /^Vim:Interrupt$/ " catch interrupts (CTRL-C)
:catch /^Vim\%((\a\+)\)\=:E/ " catch all Vim errors
:catch /^Vim\%((\a\+)\)\=:/ " catch errors and interrupts
:catch /^Vim(write):/ " catch all errors in :write
:catch /^Vim\%((\a\+)\)\=:E123/ " catch error E123
Is a change needed at ':help :catch'?
John
The exception string as caught by :catch is not identical to the error
string as displayed at the bottom of the screen if there is no :try
The current exception can be got from v:exception, but only between
:catch and :endtry. OTOH the latest error can be got from v:error.
Catching /E123:/ will catch the E123 exception thrown by Vim, but also
any exception with "E123:" in its text, thrown by :throw or triggered as
an error by :echoerr.
Best regards,
Tony.
--
If Jesus Christ were to come today, people would not even crucify him.
They would ask him to dinner, and hear what he had to say, and make fun
of it.
-- Thomas Carlyle
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