625 lines
18 KiB
C
625 lines
18 KiB
C
/* $Id$ */
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/**************************************************************************
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* nano.h *
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* *
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* Copyright (C) 1999-2004 Chris Allegretta *
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* Copyright (C) 2005-2006 David Lawrence Ramsey *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 2, or (at your option) *
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* any later version. *
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* *
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* This program is distributed in the hope that it will be useful, but *
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* WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU *
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* General Public License for more details. *
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* *
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* You should have received a copy of the GNU General Public License *
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* along with this program; if not, write to the Free Software *
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA *
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* 02110-1301, USA. *
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* *
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**************************************************************************/
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#ifndef NANO_H
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#define NANO_H 1
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#ifdef HAVE_CONFIG_H
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#include <config.h>
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#endif
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#ifdef __TANDEM
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/* Tandem NonStop Kernel. */
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#include <floss.h>
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#define NANO_ROOT_UID 65535
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#else
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#define NANO_ROOT_UID 0
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#endif
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#ifdef HAVE_LIMITS_H
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#include <limits.h>
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#endif
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/* Macros for flags. */
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#define SET(bit) flags |= bit
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#define UNSET(bit) flags &= ~bit
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#define ISSET(bit) ((flags & bit) != 0)
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#define TOGGLE(bit) flags ^= bit
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/* Macros for character allocation, etc. */
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#define charalloc(howmuch) (char *)nmalloc((howmuch) * sizeof(char))
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#define charealloc(ptr, howmuch) (char *)nrealloc(ptr, (howmuch) * sizeof(char))
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#define charmove(dest, src, n) memmove(dest, src, (n) * sizeof(char))
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#define charset(dest, src, n) memset(dest, src, (n) * sizeof(char))
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/* Other macros. */
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#ifdef BROKEN_REGEXEC
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#undef regexec
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#define regexec(preg, string, nmatch, pmatch, eflags) safe_regexec(preg, string, nmatch, pmatch, eflags)
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#endif
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/* Set a default value for PATH_MAX if there isn't one. */
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#ifndef PATH_MAX
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#define PATH_MAX 4096
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#endif
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#ifdef USE_SLANG
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/* Slang support. */
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#include <slcurses.h>
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/* Slang curses emulation brain damage, part 2: Slang doesn't define the
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* curses equivalents of the Insert or Delete keys. */
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#define KEY_DC SL_KEY_DELETE
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#define KEY_IC SL_KEY_IC
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/* Ncurses support. */
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#elif defined(HAVE_NCURSES_H)
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#include <ncurses.h>
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#else
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/* Curses support. */
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#include <curses.h>
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#endif /* CURSES_H */
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#ifdef ENABLE_NLS
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#ifdef HAVE_LIBINTL_H
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#include <libintl.h>
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#endif
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#define _(string) gettext(string)
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#define P_(singular, plural, number) ngettext(singular, plural, number)
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#else
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#define _(string) (string)
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#define P_(singular, plural, number) (number == 1 ? singular : plural)
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#endif
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#define gettext_noop(string) (string)
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#define N_(string) gettext_noop(string)
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/* Mark a string that will be sent to gettext() later. */
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#include <stddef.h>
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#include <stdlib.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <dirent.h>
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#ifdef HAVE_REGEX_H
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#include <regex.h>
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#endif
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#include <assert.h>
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/* If no vsnprintf(), use the version from glib 2.x. */
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#ifndef HAVE_VSNPRINTF
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#include <glib.h>
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#define vsnprintf g_vsnprintf
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#endif
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/* If no isblank(), iswblank(), strcasecmp(), strncasecmp(),
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* strcasestr(), strnlen(), getdelim(), or getline(), use the versions
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* we have. */
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#ifndef HAVE_ISBLANK
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#define isblank nisblank
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#endif
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#ifndef HAVE_ISWBLANK
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#define iswblank niswblank
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#endif
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#ifndef HAVE_STRCASECMP
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#define strcasecmp nstrcasecmp
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#endif
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#ifndef HAVE_STRNCASECMP
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#define strncasecmp nstrncasecmp
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#endif
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#ifndef HAVE_STRCASESTR
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#define strcasestr nstrcasestr
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#endif
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#ifndef HAVE_STRNLEN
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#define strnlen nstrnlen
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#endif
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#ifndef HAVE_GETDELIM
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#define getdelim ngetdelim
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#endif
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#ifndef HAVE_GETLINE
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#define getline ngetline
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#endif
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/* If we don't have regex support, turn the color support off, as it
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* depends on the use of regexes. */
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#ifndef HAVE_REGEX_H
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#undef ENABLE_COLOR
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#endif
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/* If we aren't using ncurses, turn the mouse support off, as it's
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* ncurses-specific. */
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#ifndef NCURSES_MOUSE_VERSION
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#define DISABLE_MOUSE 1
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#endif
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#if defined(DISABLE_WRAPPING) && defined(DISABLE_JUSTIFY)
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#define DISABLE_WRAPJUSTIFY 1
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#endif
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/* Enumeration types. */
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typedef enum {
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NIX_FILE, DOS_FILE, MAC_FILE
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} file_format;
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typedef enum {
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OVERWRITE, APPEND, PREPEND
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} append_type;
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typedef enum {
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UP, DOWN
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} scroll_dir;
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typedef enum {
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CENTER, NONE
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} update_type;
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/* Structure types. */
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typedef struct filestruct {
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char *data;
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/* The text of this line. */
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ssize_t lineno;
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/* The number of this line. */
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struct filestruct *next;
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/* Next node. */
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struct filestruct *prev;
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/* Previous node. */
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} filestruct;
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typedef struct partition {
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filestruct *fileage;
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/* The top line of this portion of the file. */
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filestruct *top_prev;
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/* The line before the top line of this portion of the file. */
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char *top_data;
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/* The text before the beginning of the top line of this portion
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* of the file. */
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filestruct *filebot;
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/* The bottom line of this portion of the file. */
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filestruct *bot_next;
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/* The line after the bottom line of this portion of the
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* file. */
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char *bot_data;
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/* The text after the end of the bottom line of this portion of
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* the file. */
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} partition;
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#ifdef ENABLE_COLOR
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typedef struct colortype {
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short fg;
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/* This syntax's foreground color. */
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short bg;
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/* This syntax's background color. */
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bool bright;
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/* Is this color A_BOLD? */
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bool icase;
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/* Is this regex string case insensitive? */
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int pairnum;
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/* The color pair number used for this foreground color and
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* background color. */
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char *start_regex;
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/* The start (or all) of the regex string. */
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regex_t *start;
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/* The compiled start (or all) of the regex string. */
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char *end_regex;
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/* The end (if any) of the regex string. */
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regex_t *end;
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/* The compiled end (if any) of the regex string. */
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struct colortype *next;
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/* Next set of colors. */
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} colortype;
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typedef struct exttype {
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char *ext_regex;
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/* The extensions that match this syntax. */
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regex_t *ext;
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/* The compiled extensions that match this syntax. */
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struct exttype *next;
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/* Next set of extensions. */
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} exttype;
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typedef struct syntaxtype {
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char *desc;
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/* The name of this syntax. */
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exttype *extensions;
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/* The list of extensions that this syntax applies to. */
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colortype *color;
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/* The colors used in this syntax. */
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struct syntaxtype *next;
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/* Next syntax. */
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} syntaxtype;
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#endif /* ENABLE_COLOR */
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typedef struct openfilestruct {
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char *filename;
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/* The current file's name. */
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filestruct *fileage;
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/* The current file's first line. */
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filestruct *filebot;
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/* The current file's last line. */
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filestruct *edittop;
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/* The current top of the edit window. */
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filestruct *current;
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/* The current file's current line. */
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size_t totsize;
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/* The current file's total number of characters. */
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size_t current_x;
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/* The current file's x-coordinate position. */
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size_t placewewant;
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/* The current file's place we want. */
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ssize_t current_y;
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/* The current file's y-coordinate position. */
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bool modified;
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/* Whether the current file has been modified. */
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#ifndef NANO_TINY
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bool mark_set;
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/* Whether the mark is on in the current file. */
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filestruct *mark_begin;
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/* The current file's beginning marked line, if any. */
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size_t mark_begin_x;
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/* The current file's beginning marked line's x-coordinate
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* position, if any. */
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file_format fmt;
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/* The current file's format. */
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struct stat *current_stat;
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/* The current file's stat. */
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#endif
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#ifdef ENABLE_COLOR
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colortype *colorstrings;
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/* The current file's associated colors. */
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#endif
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struct openfilestruct *next;
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/* Next node. */
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struct openfilestruct *prev;
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/* Previous node. */
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} openfilestruct;
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typedef struct shortcut {
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const char *desc;
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/* The function's description, e.g. "Page Up". */
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#ifndef DISABLE_HELP
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const char *help;
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/* The help file entry text for this function. */
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#endif
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bool blank_after;
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/* Whether there should be a blank line after the help entry
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* text for this function. */
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/* Key values that aren't used should be set to NANO_NO_KEY. */
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int ctrlval;
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/* The special sentinel key or control key we want bound, if
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* any. */
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int metaval;
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/* The meta key we want bound, if any. */
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int funcval;
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/* The function key we want bound, if any. */
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int miscval;
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/* The other meta key we want bound, if any. */
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bool viewok;
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/* Is this function allowed when in view mode? */
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void (*func)(void);
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/* The function to call when we get this key. */
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struct shortcut *next;
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/* Next shortcut. */
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} shortcut;
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#ifndef NANO_TINY
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typedef struct toggle {
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int val;
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/* The sequence to toggle the key. We should only need one. */
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const char *desc;
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/* The description of the toggle, e.g. "Cut to end"; we'll
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* append Enabled or Disabled to it. */
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bool blank_after;
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/* Whether there should be a blank line after the description of
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* the toggle. */
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long flag;
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/* Which flag actually gets toggled. */
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struct toggle *next;
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/* Next toggle. */
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} toggle;
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#endif
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#ifdef ENABLE_NANORC
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typedef struct rcoption {
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const char *name;
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/* The name of the rcfile option. */
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long flag;
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/* The flag associated with it, if any. */
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} rcoption;
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#endif
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/* Bitwise flags so that we can save space (or, more correctly, not
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* waste it). */
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#define CASE_SENSITIVE (1<<0)
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#define CONST_UPDATE (1<<1)
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#define NO_HELP (1<<2)
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#define NOFOLLOW_SYMLINKS (1<<3)
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#define SUSPEND (1<<4)
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#define NO_WRAP (1<<5)
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#define AUTOINDENT (1<<6)
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#define VIEW_MODE (1<<7)
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#define USE_MOUSE (1<<8)
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#define USE_REGEXP (1<<9)
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#define TEMP_FILE (1<<10)
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#define CUT_TO_END (1<<11)
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#define BACKWARDS_SEARCH (1<<12)
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#define MULTIBUFFER (1<<13)
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#define SMOOTH_SCROLL (1<<14)
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#define REBIND_DELETE (1<<15)
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#define REBIND_KEYPAD (1<<16)
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#define NO_CONVERT (1<<17)
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#define BACKUP_FILE (1<<18)
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#define NO_COLOR_SYNTAX (1<<19)
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#define PRESERVE (1<<20)
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#define HISTORYLOG (1<<21)
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#define RESTRICTED (1<<22)
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#define SMART_HOME (1<<23)
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#define WHITESPACE_DISPLAY (1<<24)
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#define MORE_SPACE (1<<25)
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#define TABS_TO_SPACES (1<<26)
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#define QUICK_BLANK (1<<27)
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#define WORD_BOUNDS (1<<28)
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#define NO_NEWLINES (1<<29)
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#define BOLD_TEXT (1<<30)
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/* Control key sequences. Changing these would be very, very bad. */
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#define NANO_CONTROL_SPACE 0
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#define NANO_CONTROL_A 1
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#define NANO_CONTROL_B 2
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#define NANO_CONTROL_C 3
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#define NANO_CONTROL_D 4
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#define NANO_CONTROL_E 5
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#define NANO_CONTROL_F 6
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#define NANO_CONTROL_G 7
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#define NANO_CONTROL_H 8
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#define NANO_CONTROL_I 9
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#define NANO_CONTROL_J 10
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#define NANO_CONTROL_K 11
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#define NANO_CONTROL_L 12
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#define NANO_CONTROL_M 13
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#define NANO_CONTROL_N 14
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#define NANO_CONTROL_O 15
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#define NANO_CONTROL_P 16
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#define NANO_CONTROL_Q 17
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#define NANO_CONTROL_R 18
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#define NANO_CONTROL_S 19
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#define NANO_CONTROL_T 20
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#define NANO_CONTROL_U 21
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#define NANO_CONTROL_V 22
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#define NANO_CONTROL_W 23
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#define NANO_CONTROL_X 24
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#define NANO_CONTROL_Y 25
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#define NANO_CONTROL_Z 26
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#define NANO_CONTROL_3 27
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#define NANO_CONTROL_4 28
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#define NANO_CONTROL_5 29
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#define NANO_CONTROL_6 30
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#define NANO_CONTROL_7 31
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#define NANO_CONTROL_8 127
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#define NANO_ALT_SPACE ' '
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#define NANO_ALT_LPAREN '('
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#define NANO_ALT_RPAREN ')'
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#define NANO_ALT_PLUS '+'
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#define NANO_ALT_COMMA ','
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#define NANO_ALT_MINUS '-'
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#define NANO_ALT_PERIOD '.'
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#define NANO_ALT_SLASH '/'
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#define NANO_ALT_0 '0'
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#define NANO_ALT_6 '6'
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#define NANO_ALT_9 '9'
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#define NANO_ALT_LCARET '<'
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#define NANO_ALT_EQUALS '='
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#define NANO_ALT_RCARET '>'
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#define NANO_ALT_QUESTION '?'
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#define NANO_ALT_BACKSLASH '\\'
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#define NANO_ALT_RBRACKET ']'
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#define NANO_ALT_CARET '^'
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#define NANO_ALT_UNDERSCORE '_'
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#define NANO_ALT_A 'a'
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#define NANO_ALT_B 'b'
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#define NANO_ALT_C 'c'
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#define NANO_ALT_D 'd'
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#define NANO_ALT_E 'e'
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#define NANO_ALT_F 'f'
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#define NANO_ALT_G 'g'
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#define NANO_ALT_H 'h'
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#define NANO_ALT_I 'i'
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#define NANO_ALT_J 'j'
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#define NANO_ALT_K 'k'
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#define NANO_ALT_L 'l'
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#define NANO_ALT_M 'm'
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#define NANO_ALT_N 'n'
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#define NANO_ALT_O 'o'
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#define NANO_ALT_P 'p'
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#define NANO_ALT_Q 'q'
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#define NANO_ALT_R 'r'
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#define NANO_ALT_S 's'
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#define NANO_ALT_T 't'
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#define NANO_ALT_U 'u'
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#define NANO_ALT_V 'v'
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#define NANO_ALT_W 'w'
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#define NANO_ALT_X 'x'
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#define NANO_ALT_Y 'y'
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#define NANO_ALT_Z 'z'
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#define NANO_ALT_PIPE '|'
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/* Some semi-changeable keybindings; don't play with these unless you're
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* sure you know what you're doing. Assume ERR is defined as -1. */
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/* No key at all. */
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#define NANO_NO_KEY -2
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/* Normal keys. */
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#define NANO_XON_KEY NANO_CONTROL_Q
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#define NANO_XOFF_KEY NANO_CONTROL_S
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#define NANO_CANCEL_KEY NANO_CONTROL_C
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#define NANO_EXIT_KEY NANO_CONTROL_X
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#define NANO_EXIT_FKEY KEY_F(2)
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#define NANO_INSERTFILE_KEY NANO_CONTROL_R
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#define NANO_INSERTFILE_FKEY KEY_F(5)
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#define NANO_TOOTHERINSERT_KEY NANO_CONTROL_X
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#define NANO_WRITEOUT_KEY NANO_CONTROL_O
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#define NANO_WRITEOUT_FKEY KEY_F(3)
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#define NANO_GOTOLINE_KEY NANO_CONTROL_7
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#define NANO_GOTOLINE_FKEY KEY_F(13)
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#define NANO_GOTOLINE_ALTKEY NANO_ALT_G
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#define NANO_TOGOTOLINE_KEY NANO_CONTROL_T
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#define NANO_HELP_KEY NANO_CONTROL_G
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#define NANO_HELP_FKEY KEY_F(1)
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#define NANO_WHEREIS_KEY NANO_CONTROL_W
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#define NANO_WHEREIS_FKEY KEY_F(6)
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#define NANO_WHEREIS_NEXT_KEY NANO_ALT_W
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#define NANO_WHEREIS_NEXT_FKEY KEY_F(16)
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#define NANO_TOOTHERWHEREIS_KEY NANO_CONTROL_T
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#define NANO_REGEXP_KEY NANO_ALT_R
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#define NANO_REPLACE_KEY NANO_CONTROL_4
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#define NANO_REPLACE_FKEY KEY_F(14)
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#define NANO_ALT_REPLACE_KEY NANO_ALT_R
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#define NANO_TOOTHERSEARCH_KEY NANO_CONTROL_R
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#define NANO_PREVPAGE_KEY NANO_CONTROL_Y
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#define NANO_PREVPAGE_FKEY KEY_F(7)
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#define NANO_NEXTPAGE_KEY NANO_CONTROL_V
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#define NANO_NEXTPAGE_FKEY KEY_F(8)
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#define NANO_CUT_KEY NANO_CONTROL_K
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#define NANO_CUT_FKEY KEY_F(9)
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#define NANO_COPY_KEY NANO_ALT_CARET
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#define NANO_COPY_ALTKEY NANO_ALT_6
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#define NANO_UNCUT_KEY NANO_CONTROL_U
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#define NANO_UNCUT_FKEY KEY_F(10)
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#define NANO_CURSORPOS_KEY NANO_CONTROL_C
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#define NANO_CURSORPOS_FKEY KEY_F(11)
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#define NANO_SPELL_KEY NANO_CONTROL_T
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#define NANO_SPELL_FKEY KEY_F(12)
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#define NANO_FIRSTLINE_KEY NANO_PREVPAGE_KEY
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#define NANO_FIRSTLINE_FKEY NANO_PREVPAGE_FKEY
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#define NANO_FIRSTLINE_ALTKEY NANO_ALT_BACKSLASH
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#define NANO_FIRSTLINE_ALTKEY2 NANO_ALT_PIPE
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#define NANO_FIRSTFILE_KEY NANO_FIRSTLINE_KEY
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#define NANO_FIRSTFILE_FKEY NANO_FIRSTLINE_FKEY
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#define NANO_FIRSTFILE_ALTKEY NANO_FIRSTLINE_ALTKEY
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#define NANO_FIRSTFILE_ALTKEY2 NANO_FIRSTLINE_ALTKEY2
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#define NANO_LASTLINE_KEY NANO_NEXTPAGE_KEY
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#define NANO_LASTLINE_FKEY NANO_NEXTPAGE_FKEY
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#define NANO_LASTLINE_ALTKEY NANO_ALT_SLASH
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#define NANO_LASTLINE_ALTKEY2 NANO_ALT_QUESTION
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#define NANO_LASTFILE_KEY NANO_LASTLINE_KEY
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#define NANO_LASTFILE_FKEY NANO_LASTLINE_FKEY
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#define NANO_LASTFILE_ALTKEY NANO_LASTLINE_ALTKEY
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#define NANO_LASTFILE_ALTKEY2 NANO_LASTLINE_ALTKEY2
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#define NANO_REFRESH_KEY NANO_CONTROL_L
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#define NANO_JUSTIFY_KEY NANO_CONTROL_J
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#define NANO_JUSTIFY_FKEY KEY_F(4)
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#define NANO_UNJUSTIFY_KEY NANO_UNCUT_KEY
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#define NANO_UNJUSTIFY_FKEY NANO_UNCUT_FKEY
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#define NANO_PREVLINE_KEY NANO_CONTROL_P
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#define NANO_NEXTLINE_KEY NANO_CONTROL_N
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#define NANO_FORWARD_KEY NANO_CONTROL_F
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#define NANO_BACK_KEY NANO_CONTROL_B
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#define NANO_MARK_KEY NANO_CONTROL_6
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#define NANO_MARK_ALTKEY NANO_ALT_A
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#define NANO_MARK_FKEY KEY_F(15)
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#define NANO_HOME_KEY NANO_CONTROL_A
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#define NANO_END_KEY NANO_CONTROL_E
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#define NANO_DELETE_KEY NANO_CONTROL_D
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#define NANO_BACKSPACE_KEY NANO_CONTROL_H
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#define NANO_TAB_KEY NANO_CONTROL_I
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#define NANO_SUSPEND_KEY NANO_CONTROL_Z
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#define NANO_ENTER_KEY NANO_CONTROL_M
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#define NANO_TOFILES_KEY NANO_CONTROL_T
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#define NANO_APPEND_KEY NANO_ALT_A
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#define NANO_PREPEND_KEY NANO_ALT_P
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#define NANO_PREVFILE_KEY NANO_ALT_LCARET
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#define NANO_NEXTFILE_KEY NANO_ALT_RCARET
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#define NANO_PREVFILE_ALTKEY NANO_ALT_COMMA
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#define NANO_NEXTFILE_ALTKEY NANO_ALT_PERIOD
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#define NANO_BRACKET_KEY NANO_ALT_RBRACKET
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#define NANO_NEXTWORD_KEY NANO_CONTROL_SPACE
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#define NANO_PREVWORD_KEY NANO_ALT_SPACE
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#define NANO_WORDCOUNT_KEY NANO_ALT_D
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#define NANO_SCROLLUP_KEY NANO_ALT_MINUS
|
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#define NANO_SCROLLDOWN_KEY NANO_ALT_PLUS
|
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#define NANO_SCROLLUP_ALTKEY NANO_ALT_UNDERSCORE
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#define NANO_SCROLLDOWN_ALTKEY NANO_ALT_EQUALS
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#define NANO_CUTTILLEND_KEY NANO_CONTROL_X
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#define NANO_CUTTILLEND_ALTKEY NANO_ALT_T
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#define NANO_PARABEGIN_KEY NANO_CONTROL_W
|
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#define NANO_PARABEGIN_ALTKEY NANO_ALT_LPAREN
|
|
#define NANO_PARABEGIN_ALTKEY2 NANO_ALT_9
|
|
#define NANO_PARAEND_KEY NANO_CONTROL_O
|
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#define NANO_PARAEND_ALTKEY NANO_ALT_RPAREN
|
|
#define NANO_PARAEND_ALTKEY2 NANO_ALT_0
|
|
#define NANO_FULLJUSTIFY_KEY NANO_CONTROL_U
|
|
#define NANO_FULLJUSTIFY_ALTKEY NANO_ALT_J
|
|
#define NANO_VERBATIM_KEY NANO_ALT_V
|
|
|
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/* Toggles do not exist if NANO_TINY is defined. */
|
|
#ifndef NANO_TINY
|
|
|
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/* No toggle at all. */
|
|
#define TOGGLE_NO_KEY -2
|
|
|
|
/* Normal toggles. */
|
|
#define TOGGLE_NOHELP_KEY NANO_ALT_X
|
|
#define TOGGLE_CONST_KEY NANO_ALT_C
|
|
#define TOGGLE_MORESPACE_KEY NANO_ALT_O
|
|
#define TOGGLE_SMOOTH_KEY NANO_ALT_S
|
|
#define TOGGLE_WHITESPACE_KEY NANO_ALT_P
|
|
#define TOGGLE_SYNTAX_KEY NANO_ALT_Y
|
|
#define TOGGLE_SMARTHOME_KEY NANO_ALT_H
|
|
#define TOGGLE_AUTOINDENT_KEY NANO_ALT_I
|
|
#define TOGGLE_CUTTOEND_KEY NANO_ALT_K
|
|
#define TOGGLE_WRAP_KEY NANO_ALT_L
|
|
#define TOGGLE_TABSTOSPACES_KEY NANO_ALT_Q
|
|
#define TOGGLE_BACKUP_KEY NANO_ALT_B
|
|
#define TOGGLE_MULTIBUFFER_KEY NANO_ALT_F
|
|
#define TOGGLE_MOUSE_KEY NANO_ALT_M
|
|
#define TOGGLE_NOCONVERT_KEY NANO_ALT_N
|
|
#define TOGGLE_SUSPEND_KEY NANO_ALT_Z
|
|
#define TOGGLE_CASE_KEY NANO_ALT_C
|
|
#define TOGGLE_BACKWARDS_KEY NANO_ALT_B
|
|
#define TOGGLE_DOS_KEY NANO_ALT_D
|
|
#define TOGGLE_MAC_KEY NANO_ALT_M
|
|
#endif /* !NANO_TINY */
|
|
|
|
#define MAIN_VISIBLE 12
|
|
|
|
#define VIEW TRUE
|
|
#define NOVIEW FALSE
|
|
|
|
/* The minimum editor window columns and rows required for nano to work
|
|
* correctly. */
|
|
#define MIN_EDITOR_COLS 4
|
|
#define MIN_EDITOR_ROWS 1
|
|
|
|
/* The default number of characters from the end of the line where
|
|
* wrapping occurs. */
|
|
#define CHARS_FROM_EOL 8
|
|
|
|
/* The default width of a tab in spaces. */
|
|
#define WIDTH_OF_TAB 8
|
|
|
|
/* The maximum number of search/replace history strings saved, not
|
|
* counting the blank lines at their ends. */
|
|
#define MAX_SEARCH_HISTORY 100
|
|
|
|
/* The maximum number of bytes buffered at one time. */
|
|
#define MAX_BUF_SIZE 128
|
|
|
|
#endif /* !NANO_H */
|