patch 9.0.1583: get E304 when using 'cryptmethod' "xchacha20v2" Commit: https://github.com/vim/vim/commit/3a2a60ce4a8e73594bca16814672fcc243d093ac Author: Bram Moolenaar <Bram@vim.org> Date: Sat May 27 18:02:55 2023 +0100 patch 9.0.1583: get E304 when using 'cryptmethod' "xchacha20v2" Problem: Get E304 when using 'cryptmethod' "xchacha20v2". (Steve Mynott) Solution: Add 4th crypt method to block zero ID check. Avoid syncing a swap file before reading the file. (closes #12433)

/* 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 end_insert);
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 : */