diff options
Diffstat (limited to 'runtime/doc/eval.txt')
| -rw-r--r-- | runtime/doc/eval.txt | 43 |
1 files changed, 3 insertions, 40 deletions
diff --git a/runtime/doc/eval.txt b/runtime/doc/eval.txt index b88138aea3..7682a1a584 100644 --- a/runtime/doc/eval.txt +++ b/runtime/doc/eval.txt @@ -10789,44 +10789,7 @@ code can be used: > unlet scriptnames_output ============================================================================== -10. No +eval feature *no-eval-feature* - -When the |+eval| feature was disabled at compile time, none of the expression -evaluation commands are available. To prevent this from causing Vim scripts -to generate all kinds of errors, the ":if" and ":endif" commands are still -recognized, though the argument of the ":if" and everything between the ":if" -and the matching ":endif" is ignored. Nesting of ":if" blocks is allowed, but -only if the commands are at the start of the line. The ":else" command is not -recognized. - -Example of how to avoid executing commands when the |+eval| feature is -missing: > - - :if 1 - : echo "Expression evaluation is compiled in" - :else - : echo "You will _never_ see this message" - :endif - -To execute a command only when the |+eval| feature is disabled requires a trick, -as this example shows: > - - silent! while 0 - set history=111 - silent! endwhile - -When the |+eval| feature is available the command is skipped because of the -"while 0". Without the |+eval| feature the "while 0" is an error, which is -silently ignored, and the command is executed. - -The "<CR>" here is a real CR character, type CTRL-V Enter to get it. - -When the |+eval| feature is available the ":" is remapped to add a double -quote, which has the effect of commenting-out the command. Without the -|+eval| feature the nnoremap command is skipped and the command is executed. - -============================================================================== -11. The sandbox *eval-sandbox* *sandbox* *E48* +The sandbox *eval-sandbox* *sandbox* *E48* The 'foldexpr', 'formatexpr', 'includeexpr', 'indentexpr', 'statusline' and 'foldtext' options may be evaluated in a sandbox. This means that you are @@ -10865,7 +10828,7 @@ Note that when in the sandbox and saving an option value and restoring it, the option will still be marked as it was set in the sandbox. ============================================================================== -12. Textlock *textlock* +Textlock *textlock* In a few situations it is not allowed to change the text in the buffer, jump to another window and some other things that might confuse or break what Vim @@ -10881,7 +10844,7 @@ This is not allowed when the textlock is active: - etc. ============================================================================== -13. Command-line expressions highlighting *expr-highlight* +Command-line expressions highlighting *expr-highlight* Expressions entered by the user in |i_CTRL-R_=|, |c_CTRL-\_e|, |quote=| are highlighted by the built-in expressions parser. It uses highlight groups |