Add support for plain text.

README.md

@@ -136,7 +136,7 @@ vim-licenser automatically detects your file type and applies the appropriate
 comment style. Supported file types include:
 bash, c, cmake, cpp, csharp, css, dart, go, groovy, haskell, html, java,
 javascript, json, kotlin, lua, matlab, perl, php, python, r, ruby, rust, scala,
-shell, sql, swift, typescript, typescriptreact, vim, xml, yaml
+shell, sql, swift, text, typescript, typescriptreact, vim, xml, yaml
 
 For more information, see `:help licenser` after installation.
 

doc/licenser.txt

@@ -83,6 +83,7 @@ vim-licenser supports the following filetypes with appropriate comment styles:
     shell         - Shell script
     sql           - SQL
     swift         - Swift
+    text          - Plain text
     typescript    - TypeScript
     typescriptreact - TypeScript React (TSX)
     vim           - Vim script

plugin/licenser.vim

@@ -69,6 +69,7 @@ function! s:GetCommentStyle(filetype) abort
 		\ 'shell': {'margin': 0, 'hashbang': 1, 'prefix': '', 'middle': '#', 'suffix': ''},
 		\ 'sql': {'margin': 1, 'hashbang': 0, 'prefix': '/*', 'middle': ' *', 'suffix': ' */'},
 		\ 'swift': {'margin': 1, 'hashbang': 0, 'prefix': '/*', 'middle': ' *', 'suffix': ' */'},
+		\ 'text': {'margin': 0, 'hashbang': 0, 'prefix': '', 'middle': '', 'suffix': ''},
 		\ 'typescript': {'margin': 1, 'hashbang': 0, 'prefix': '/*', 'middle': ' *', 'suffix': ' */'},
 		\ 'typescriptreact': {'margin': 1, 'hashbang': 0, 'prefix': '/*', 'middle': ' *', 'suffix': ' */'},
 		\ 'vim': {'margin': 0, 'hashbang': 0, 'prefix': '', 'middle': '"', 'suffix': ''},