Add api, command line, etc. documentation for custom lexer/formatter loading

1 files changed, 13 insertions, 0 deletions

diff --git a/doc/docs/cmdline.rst b/doc/docs/cmdline.rst
index 165af969..8fcd3c8c 100644
--- a/doc/docs/cmdline.rst
+++ b/doc/docs/cmdline.rst
@@ -99,6 +99,19 @@ The ``-N`` option guesses a lexer name for a given filename, so that ::
 will print out ``python``.  It won't highlight anything yet.  If no specific
 lexer is known for that filename, ``text`` is printed.
 
+Custom Lexers and Formatters
+----------------------------
+
+.. versionadded:: ?
+
+The ``--load-from-file`` flag enables custom lexers and formatters to be loaded
+from files relative to the current directory. Create a file with a class named
+CustomLexer or CustomFormatter, then specify it on the command line::
+
+    $ pygmentize -l your_lexer.py -f your_formatter.py --load-from-file
+
+For more information, see :doc:`the Pygments documentation on Lexer development
+<lexerdevelopment>`.
 
 Getting help
 ------------