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| author | Lukas Tobler <luk4s.tobler@gmail.com> | 2017-09-11 11:12:05 +0200 |
|---|---|---|
| committer | Lukas Tobler <luk4s.tobler@gmail.com> | 2017-09-11 11:12:05 +0200 |
| commit | 485a7dee9f8478f1f5bcef6896af02dc8d4969c6 (patch) | |
| tree | e664da1c3c3134496c743c8d5ce3c0afc4b2d152 | |
| parent | 14dc94bcaa955e9b08b8b78ff5f222722922a197 (diff) | |
| download | vis-commentary-485a7dee9f8478f1f5bcef6896af02dc8d4969c6.tar.gz | |
Fix bug: crash when trying to comment empty lines
| -rw-r--r-- | vis-commentary.lua | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/vis-commentary.lua b/vis-commentary.lua index b401a28..d8e38b9 100644 --- a/vis-commentary.lua +++ b/vis-commentary.lua @@ -49,6 +49,11 @@ local function get_lexer() end local function toggle_line_comment(lines, lnum, prefix, suffix) + if not lines or not lines[lnum] then return end + + local stripped = lines[lnum]:match("^%s*(.+)") -- empty lines: nil + if not stripped then return end + -- remove comment if lines[lnum]:match("^%s*(.+)"):sub(0, #prefix) == prefix then local match_str = "^(%s*)" .. esc(prefix) .. "%s?(.*)" .. esc(suffix) |