vim-patch:7.4.503 #2178

Problem:    Cannot append a list of lines to a file.
Solution:   Add the append option to writefile(). (Yasuhiro Matsumoto)

https://code.google.com/p/vim/source/detail?r=v7-4-503

-Ported old legacy test over to
    test/functional/legacy/writefile_spec.lua
-Tests for mapping and signs from the original patch were removed since
    they have nothing to do this with feature

Tested with: make oldtest, make test on OS X.

Signed-off-by: Perry Hung <iperry@gmail.com>

1 files changed, 9 insertions, 3 deletions

diff --git a/runtime/doc/eval.txt b/runtime/doc/eval.txt
index 8994c313b3..3c789e1155 100644
--- a/runtime/doc/eval.txt
+++ b/runtime/doc/eval.txt
@@ -2049,7 +2049,7 @@ winrestcmd()			String	returns command to restore window sizes
 winrestview( {dict})		none	restore view of current window
 winsaveview()			Dict	save view of current window
 winwidth( {nr})			Number	width of window {nr}
-writefile( {list}, {fname} [, {binary}])
+writefile( {list}, {fname} [, {flags}])
 				Number	write list of lines to file {fname}
 xor( {expr}, {expr})		Number  bitwise XOR
 
@@ -6593,13 +6593,19 @@ winwidth({nr})						*winwidth()*
   :endif
 <
 							*writefile()*
-writefile({list}, {fname} [, {binary}])
+writefile({list}, {fname} [, {flags}])
 		Write |List| {list} to file {fname}.  Each list item is
 		separated with a NL.  Each list item must be a String or
 		Number.
-		When {binary} is equal to "b" binary mode is used: There will
+		When {flags} contains "b" then binary mode is used: There will
 		not be a NL after the last list item.  An empty item at the
 		end does cause the last line in the file to end in a NL.
+
+		When {flags} contains "a" then append mode is used, lines are
+		appended to the file: >
+			:call writefile(["foo"], "event.log", "a")
+			:call writefile(["bar"], "event.log", "a")
+
 		All NL characters are replaced with a NUL character.
 		Inserting CR characters needs to be done before passing {list}
 		to writefile().