Hi,
I tried `:let &t_PS="\e[200~"` to set 't_PS' without using the raw escape code,
but it failed with E355. I didn't know that there are two types of 't_*'
options: output code options and key code options. I found the following
comment in option.c:
/* terminal key codes are not in here */
Therefore this seems to be an intended behavior. However I couldn't find the
reason in the document. So, is there any reasons that `:let &` cannot be used
for key code options?
I think that it should be documented that `:let &` cannot be used for key code
options. Please check the attached patch.
P.S. I can use `:exec "set t_PS=\e[200~"` instead of `:let &`.
Regards,
Ken Takata
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# HG changeset patch
# Parent ab286322c7a76d78a06a927d487a953f173cdc35
diff --git a/runtime/doc/eval.txt b/runtime/doc/eval.txt
--- a/runtime/doc/eval.txt
+++ b/runtime/doc/eval.txt
@@ -8953,6 +8953,9 @@ 7. Commands *expression-commands*
Example: >
:let &path = &path . ',/usr/local/include'
+< Note: This cannot be used for setting key code options
+ |terminal-key-codes|.
+
:let &{option-name} .= {expr1}
For a string option: Append {expr1} to the value.
Does not insert a comma like |:set+=|.
diff --git a/runtime/doc/term.txt b/runtime/doc/term.txt
--- a/runtime/doc/term.txt
+++ b/runtime/doc/term.txt
@@ -242,7 +242,7 @@ But any non-empty string means that the
that the flag is not set. 't_CS' works like this too, but it isn't a termcap
flag.
-OUTPUT CODES
+OUTPUT CODES *terminal-output-codes*
option meaning ~
t_AB set background color (ANSI) *t_AB* *'t_AB'*
@@ -325,7 +325,7 @@ Added by Vim (there are no standard code
t_BD disable bracketed paste mode *t_BD* *'t_BD'*
|xterm-bracketed-paste|
-KEY CODES
+KEY CODES *terminal-key-codes*
Note: Use the <> form if possible
option name meaning ~
