diff --git a/src/proto/textformat.pro b/src/proto/textformat.pro
new file mode 100644
index 0000000..7ed9428
--- /dev/null
+++ b/src/proto/textformat.pro
@@ -0,0 +1,11 @@
+/* textformat.c */
+int has_format_option(int x);
+void internal_format(int textwidth, int second_indent, int flags, int format_only, int c);
+void auto_format(int trailblank, int prev_line);
+void check_auto_format(int);
+int comp_textwidth(int ff);
+void op_format(oparg_T *oap, int keep_cursor);
+void op_formatexpr(oparg_T *oap);
+int fex_format(linenr_T lnum, long count, int c);
+void format_lines(linenr_T line_count, int avoid_fex);
+/* vim: set ft=c : */