*: Add comment to all C files

108 files changed, 324 insertions, 0 deletions

diff --git a/src/nvim/api/buffer.c b/src/nvim/api/buffer.c
index 26f9a6f592..1b3592679b 100644
--- a/src/nvim/api/buffer.c
+++ b/src/nvim/api/buffer.c
@@ -1,3 +1,6 @@
+// This is an open source non-commercial project. Dear PVS-Studio, please check
+// it. PVS-Studio Static Code Analyzer for C, C++ and C#: http://www.viva64.com
+
 // Much of this code was adapted from 'if_py_both.h' from the original
 // vim source
 #include <stdbool.h>
diff --git a/src/nvim/api/private/dispatch.c b/src/nvim/api/private/dispatch.c
index 9b3bcc380a..f8eebcdb10 100644
--- a/src/nvim/api/private/dispatch.c
+++ b/src/nvim/api/private/dispatch.c
@@ -1,3 +1,6 @@
+// This is an open source non-commercial project. Dear PVS-Studio, please check
+// it. PVS-Studio Static Code Analyzer for C, C++ and C#: http://www.viva64.com
+
 #include <inttypes.h>
 #include <stdbool.h>
 #include <stdint.h>
diff --git a/src/nvim/api/private/handle.c b/src/nvim/api/private/handle.c
index acb0fb332a..eb96192af2 100644
--- a/src/nvim/api/private/handle.c
+++ b/src/nvim/api/private/handle.c
@@ -1,3 +1,6 @@
+// This is an open source non-commercial project. Dear PVS-Studio, please check
+// it. PVS-Studio Static Code Analyzer for C, C++ and C#: http://www.viva64.com
+
 #include <assert.h>
 #include <stdint.h>
 
diff --git a/src/nvim/api/private/helpers.c b/src/nvim/api/private/helpers.c
index fe15b28041..5877b848fc 100644
--- a/src/nvim/api/private/helpers.c
+++ b/src/nvim/api/private/helpers.c
@@ -1,3 +1,6 @@
+// This is an open source non-commercial project. Dear PVS-Studio, please check
+// it. PVS-Studio Static Code Analyzer for C, C++ and C#: http://www.viva64.com
+
 #include <assert.h>
 #include <inttypes.h>
 #include <stdbool.h>
diff --git a/src/nvim/api/tabpage.c b/src/nvim/api/tabpage.c
index 0f0c33f621..29592408fc 100644
--- a/src/nvim/api/tabpage.c
+++ b/src/nvim/api/tabpage.c
@@ -1,3 +1,6 @@
+// This is an open source non-commercial project. Dear PVS-Studio, please check
+// it. PVS-Studio Static Code Analyzer for C, C++ and C#: http://www.viva64.com
+
 #include <stdbool.h>
 #include <stdint.h>
 #include <stdlib.h>
diff --git a/src/nvim/api/ui.c b/src/nvim/api/ui.c
index de60339e5f..3cc2870792 100644
--- a/src/nvim/api/ui.c
+++ b/src/nvim/api/ui.c
@@ -1,3 +1,6 @@
+// This is an open source non-commercial project. Dear PVS-Studio, please check
+// it. PVS-Studio Static Code Analyzer for C, C++ and C#: http://www.viva64.com
+
 #include <assert.h>
 #include <stddef.h>
 #include <stdint.h>
diff --git a/src/nvim/api/vim.c b/src/nvim/api/vim.c
index 6926436d2f..e5ef4a35c1 100644
--- a/src/nvim/api/vim.c
+++ b/src/nvim/api/vim.c
@@ -1,3 +1,6 @@
+// This is an open source non-commercial project. Dear PVS-Studio, please check
+// it. PVS-Studio Static Code Analyzer for C, C++ and C#: http://www.viva64.com
+
 #include <assert.h>
 #include <stdint.h>
 #include <inttypes.h>
diff --git a/src/nvim/api/window.c b/src/nvim/api/window.c
index 3c564ada99..e1bb70ee0d 100644
--- a/src/nvim/api/window.c
+++ b/src/nvim/api/window.c
@@ -1,3 +1,6 @@
+// This is an open source non-commercial project. Dear PVS-Studio, please check
+// it. PVS-Studio Static Code Analyzer for C, C++ and C#: http://www.viva64.com
+
 #include <stdbool.h>
 #include <stdint.h>
 #include <stdlib.h>
diff --git a/src/nvim/arabic.c b/src/nvim/arabic.c
index db97bd9dc4..1ef51d2a2a 100644
--- a/src/nvim/arabic.c
+++ b/src/nvim/arabic.c
@@ -1,3 +1,6 @@
+// This is an open source non-commercial project. Dear PVS-Studio, please check
+// it. PVS-Studio Static Code Analyzer for C, C++ and C#: http://www.viva64.com
+
 /// @file arabic.c
 ///
 /// Functions for Arabic language.
diff --git a/src/nvim/buffer.c b/src/nvim/buffer.c
index 1f44e1adb0..46f2cdac79 100644
--- a/src/nvim/buffer.c
+++ b/src/nvim/buffer.c
@@ -1,3 +1,6 @@
+// This is an open source non-commercial project. Dear PVS-Studio, please check
+// it. PVS-Studio Static Code Analyzer for C, C++ and C#: http://www.viva64.com
+
 /*
  * buffer.c: functions for dealing with the buffer structure
  */
diff --git a/src/nvim/charset.c b/src/nvim/charset.c
index 3037cfe669..ee58e0af91 100644
--- a/src/nvim/charset.c
+++ b/src/nvim/charset.c
@@ -1,3 +1,6 @@
+// This is an open source non-commercial project. Dear PVS-Studio, please check
+// it. PVS-Studio Static Code Analyzer for C, C++ and C#: http://www.viva64.com
+
 /// @file charset.c
 ///
 /// Code related to character sets.
diff --git a/src/nvim/cursor.c b/src/nvim/cursor.c
index 45abd314fc..60002f3cea 100644
--- a/src/nvim/cursor.c
+++ b/src/nvim/cursor.c
@@ -1,3 +1,6 @@
+// This is an open source non-commercial project. Dear PVS-Studio, please check
+// it. PVS-Studio Static Code Analyzer for C, C++ and C#: http://www.viva64.com
+
 #include <stdbool.h>
 #include <inttypes.h>
 
diff --git a/src/nvim/cursor_shape.c b/src/nvim/cursor_shape.c
index 34ee53bf75..24a5672d0f 100644
--- a/src/nvim/cursor_shape.c
+++ b/src/nvim/cursor_shape.c
@@ -1,3 +1,6 @@
+// This is an open source non-commercial project. Dear PVS-Studio, please check
+// it. PVS-Studio Static Code Analyzer for C, C++ and C#: http://www.viva64.com
+
 #include <assert.h>
 #include <stdint.h>
 #include "nvim/vim.h"
diff --git a/src/nvim/diff.c b/src/nvim/diff.c
index 49574fbbfc..0bd3f59cf2 100644
--- a/src/nvim/diff.c
+++ b/src/nvim/diff.c
@@ -1,3 +1,6 @@
+// This is an open source non-commercial project. Dear PVS-Studio, please check
+// it. PVS-Studio Static Code Analyzer for C, C++ and C#: http://www.viva64.com
+
 /// @file diff.c
 ///
 /// Code for diff'ing two, three or four buffers.
diff --git a/src/nvim/digraph.c b/src/nvim/digraph.c
index 66fb525920..32e71f61f7 100644
--- a/src/nvim/digraph.c
+++ b/src/nvim/digraph.c
@@ -1,3 +1,6 @@
+// This is an open source non-commercial project. Dear PVS-Studio, please check
+// it. PVS-Studio Static Code Analyzer for C, C++ and C#: http://www.viva64.com
+
 /// @file digraph.c
 ///
 /// code for digraphs
diff --git a/src/nvim/edit.c b/src/nvim/edit.c
index 51d0847bc7..678fa851eb 100644
--- a/src/nvim/edit.c
+++ b/src/nvim/edit.c
@@ -1,3 +1,6 @@
+// This is an open source non-commercial project. Dear PVS-Studio, please check
+// it. PVS-Studio Static Code Analyzer for C, C++ and C#: http://www.viva64.com
+
 /*
  * edit.c: functions for Insert mode
  */
diff --git a/src/nvim/eval.c b/src/nvim/eval.c
index dcbd7ab152..16f054957f 100644
--- a/src/nvim/eval.c
+++ b/src/nvim/eval.c
@@ -1,3 +1,6 @@
+// This is an open source non-commercial project. Dear PVS-Studio, please check
+// it. PVS-Studio Static Code Analyzer for C, C++ and C#: http://www.viva64.com
+
 /*
  * eval.c: Expression evaluation.
  */
diff --git a/src/nvim/eval/decode.c b/src/nvim/eval/decode.c
index a7dc6b205d..8905317f15 100644
--- a/src/nvim/eval/decode.c
+++ b/src/nvim/eval/decode.c
@@ -1,3 +1,6 @@
+// This is an open source non-commercial project. Dear PVS-Studio, please check
+// it. PVS-Studio Static Code Analyzer for C, C++ and C#: http://www.viva64.com
+
 #include <stddef.h>
 
 #include <msgpack.h>
diff --git a/src/nvim/eval/encode.c b/src/nvim/eval/encode.c
index d74913a481..e32f893faa 100644
--- a/src/nvim/eval/encode.c
+++ b/src/nvim/eval/encode.c
@@ -1,3 +1,6 @@
+// This is an open source non-commercial project. Dear PVS-Studio, please check
+// it. PVS-Studio Static Code Analyzer for C, C++ and C#: http://www.viva64.com
+
 /// @file encode.c
 ///
 /// File containing functions for encoding and decoding VimL values.
diff --git a/src/nvim/eval/executor.c b/src/nvim