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-rw-r--r--runtime/doc/print.txt5
1 files changed, 5 insertions, 0 deletions
diff --git a/runtime/doc/print.txt b/runtime/doc/print.txt
index e24b6b0347..ef3e47d32c 100644
--- a/runtime/doc/print.txt
+++ b/runtime/doc/print.txt
@@ -155,6 +155,11 @@ an error message. In that case Vim will delete the file. In the default
value for non-MS-Windows a trick is used: Adding "v:shell_error" will result
in a non-zero number when the system() call fails.
+If the expression starts with s: or |<SID>|, then it is replaced with the
+script ID (|local-function|). Example: >
+ set printexpr=s:MyPrintFile()
+ set printexpr=<SID>SomePrintFile()
+<
This option cannot be set from a |modeline| or in the |sandbox|, for security
reasons.