627 lines
17 KiB
C
627 lines
17 KiB
C
/**************************************************************************
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* nano.h -- This file is part of GNU nano. *
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* *
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* Copyright (C) 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, *
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* 2008, 2009, 2010, 2011, 2013, 2014 Free Software Foundation, Inc. *
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* Copyright (C) 2014, 2015, 2016 Benno Schulenberg *
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* *
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* GNU nano 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 *
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* by the Free Software Foundation, either version 3 of the License, *
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* or (at your option) any later version. *
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* *
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* GNU nano is distributed in the hope that it will be useful, *
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* but WITHOUT ANY WARRANTY; without even the implied warranty *
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* of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. *
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* See the GNU 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, see http://www.gnu.org/licenses/. *
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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 NEED_XOPEN_SOURCE_EXTENDED
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#ifndef _XOPEN_SOURCE_EXTENDED
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#define _XOPEN_SOURCE_EXTENDED 1
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#endif
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#endif
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#ifdef __TANDEM
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/* Tandem NonStop Kernel support. */
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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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#ifdef HAVE_SYS_PARAM_H
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#include <sys/param.h>
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#endif
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#ifdef HAVE_STDARG_H
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#include <stdarg.h>
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#endif
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/* Suppress warnings for __attribute__((warn_unused_result)). */
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#define IGNORE_CALL_RESULT(call) do { if (call) {} } while(0)
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/* Macros for flags, indexing each bit in a small array. */
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#define FLAGS(flag) flags[((flag) / (sizeof(unsigned) * 8))]
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#define FLAGMASK(flag) ((unsigned)1 << ((flag) % (sizeof(unsigned) * 8)))
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#define SET(flag) FLAGS(flag) |= FLAGMASK(flag)
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#define UNSET(flag) FLAGS(flag) &= ~FLAGMASK(flag)
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#define ISSET(flag) ((FLAGS(flag) & FLAGMASK(flag)) != 0)
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#define TOGGLE(flag) FLAGS(flag) ^= FLAGMASK(flag)
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/* Macros for character allocation and more. */
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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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/* 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 3: 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_NCURSESW_NCURSES_H)
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#include <ncursesw/ncurses.h>
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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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#if defined(NCURSES_VERSION_MAJOR) && (NCURSES_VERSION_MAJOR < 6)
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#define USING_OLD_NCURSES yes
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#endif
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#ifdef ENABLE_NLS
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/* Native language support. */
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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 <signal.h>
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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 aren't using ncurses with mouse support, turn the mouse support
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* off, as it's useless then. */
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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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HUSH, MILD, ALERT
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} message_type;
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typedef enum {
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OVERWRITE, APPEND, PREPEND
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} kind_of_writing_type;
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typedef enum {
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SOFTMARK, HARDMARK
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} mark_type;
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typedef enum {
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UPWARD, DOWNWARD
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} scroll_dir;
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typedef enum {
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CENTERING, FLOWING, STATIONARY
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} update_type;
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typedef enum {
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ADD, DEL, BACK, CUT, CUT_EOF, REPLACE,
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#ifndef DISABLE_WRAPPING
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SPLIT_BEGIN, SPLIT_END,
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#endif
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#ifndef DISABLE_COMMENT
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COMMENT, UNCOMMENT, PREFLIGHT,
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#endif
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JOIN, PASTE, INSERT, ENTER, OTHER
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} undo_type;
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/* Structure types. */
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#ifndef DISABLE_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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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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int attributes;
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/* Pair number and brightness composed into ready-to-use attributes. */
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int rex_flags;
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/* The regex compilation flags (with or without REG_ICASE). */
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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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int id;
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/* Basic id for assigning to lines later. */
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} colortype;
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typedef struct regexlisttype {
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char *full_regex;
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/* A regex string to match things that imply a certain syntax. */
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struct regexlisttype *next;
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/* The next regex. */
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} regexlisttype;
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typedef struct syntaxtype {
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char *name;
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/* The name of this syntax. */
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regexlisttype *extensions;
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/* The list of extensions that this syntax applies to. */
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regexlisttype *headers;
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/* The list of headerlines that this syntax applies to. */
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regexlisttype *magics;
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/* The list of libmagic results that this syntax applies to. */
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char *linter;
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/* The command with which to lint this type of file. */
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char *formatter;
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/* The formatting command (for programming languages mainly). */
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char *comment;
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/* The line comment prefix (and postfix) for this type of file. */
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colortype *color;
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/* The colors and their regexes used in this syntax. */
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int nmultis;
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/* How many multiline regex strings this syntax has. */
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struct syntaxtype *next;
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/* Next syntax. */
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} syntaxtype;
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typedef struct lintstruct {
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ssize_t lineno;
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/* Line number of the error. */
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ssize_t colno;
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/* Column # of the error. */
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char *msg;
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/* Error message text. */
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char *filename;
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/* Filename. */
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struct lintstruct *next;
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/* Next error. */
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struct lintstruct *prev;
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/* Previous error. */
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} lintstruct;
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/* Flags that indicate how a multiline regex applies to a line. */
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#define CNONE (1<<1)
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/* Yay, regex doesn't apply to this line at all! */
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#define CBEGINBEFORE (1<<2)
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/* Regex starts on an earlier line, ends on this one. */
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#define CENDAFTER (1<<3)
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/* Regex starts on this line and ends on a later one. */
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#define CWHOLELINE (1<<4)
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/* Whole line engulfed by the regex, start < me, end > me. */
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#define CSTARTENDHERE (1<<5)
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/* Regex starts and ends within this line. */
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#endif /* !DISABLE_COLOR */
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/* More 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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#ifndef DISABLE_COLOR
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short *multidata;
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/* Array of which multi-line regexes apply to this line. */
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#endif
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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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#ifndef NANO_TINY
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typedef struct undo_group {
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ssize_t top_line;
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/* First line of group. */
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ssize_t bottom_line;
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/* Last line of group. */
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struct undo_group *next;
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} undo_group;
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typedef struct undo {
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ssize_t lineno;
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undo_type type;
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/* What type of undo this was. */
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size_t begin;
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/* Where did this action begin or end. */
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char *strdata;
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/* String type data we will use for copying the affected line back. */
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size_t wassize;
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/* The file size before the action. */
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size_t newsize;
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/* The file size after the action. */
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int xflags;
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/* Some flag data we need. */
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undo_group *grouping;
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/* Undo info specific to groups of lines. */
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/* Cut-specific stuff we need. */
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filestruct *cutbuffer;
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/* Copy of the cutbuffer. */
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filestruct *cutbottom;
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/* Copy of cutbottom. */
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ssize_t mark_begin_lineno;
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/* Mostly the line number of the current line; sometimes something else. */
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size_t mark_begin_x;
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/* The x position corresponding to the above line number. */
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struct undo *next;
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/* A pointer to the undo item of the preceding action. */
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} undo;
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#endif /* !NANO_TINY */
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#ifndef DISABLE_HISTORIES
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typedef struct poshiststruct {
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char *filename;
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/* The file. */
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ssize_t lineno;
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/* Line number we left off on. */
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ssize_t xno;
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/* x position in the file we left off on. */
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struct poshiststruct *next;
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} poshiststruct;
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#endif
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typedef struct openfilestruct {
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char *filename;
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/* The file's name. */
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filestruct *fileage;
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/* The file's first line. */
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filestruct *filebot;
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/* The file's last line. */
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filestruct *edittop;
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/* The current top of the edit window for this file. */
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filestruct *current;
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/* The current line for this file. */
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size_t totsize;
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/* The file's total number of characters. */
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size_t current_x;
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/* The file's x-coordinate position. */
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size_t placewewant;
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/* The file's x position we would like. */
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ssize_t current_y;
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/* The file's y-coordinate position. */
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bool modified;
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/* Whether the file has been modified. */
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struct stat *current_stat;
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/* The file's current stat information. */
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#ifndef NANO_TINY
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bool mark_set;
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/* Whether the mark is on in this file. */
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filestruct *mark_begin;
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/* The file's line where the mark is, if any. */
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size_t mark_begin_x;
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/* The file's mark's x-coordinate position, if any. */
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mark_type kind_of_mark;
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/* Whether this is a soft or a hard mark. */
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file_format fmt;
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/* The file's format. */
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undo *undotop;
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/* The top of the undo list. */
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undo *current_undo;
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/* The current (i.e. next) level of undo. */
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undo_type last_action;
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/* The type of the last action the user performed. */
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char *lock_filename;
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/* The path of the lockfile, if we created one. */
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#endif
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#ifndef DISABLE_COLOR
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syntaxtype *syntax;
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/* The syntax struct for this file, if any. */
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colortype *colorstrings;
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/* The file's associated colors. */
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#endif
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struct openfilestruct *next;
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/* The next open file, if any. */
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struct openfilestruct *prev;
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/* The preceding open file, if any. */
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} openfilestruct;
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#ifndef DISABLE_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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typedef struct sc {
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const char *keystr;
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/* The string that describes a keystroke, like "^C" or "M-R". */
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bool meta;
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/* Whether this is a Meta keystroke. */
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int keycode;
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/* The integer that, together with meta, identifies the keystroke. */
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int menus;
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/* Which menus this applies to. */
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void (*scfunc)(void);
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/* The function we're going to run. */
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#ifndef NANO_TINY
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int toggle;
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/* If a toggle, what we're toggling. */
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int ordinal;
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/* The how-manieth toggle this is, in order to be able to
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* keep them in sequence. */
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#endif
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struct sc *next;
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/* Next in the list. */
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} sc;
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typedef struct subnfunc {
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void (*scfunc)(void);
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/* The actual function to call. */
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int menus;
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/* In what menus this function applies. */
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const char *desc;
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/* The function's short description, for example "Where Is". */
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#ifndef DISABLE_HELP
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const char *help;
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/* The help-screen text for this function. */
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bool blank_after;
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/* Whether there should be a blank line after the help text
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* for this function. */
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#endif
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bool viewok;
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/* Is this function allowed when in view mode? */
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long toggle;
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/* If this is a toggle, which toggle to affect. */
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struct subnfunc *next;
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/* Next item in the list. */
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} subnfunc;
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#ifdef ENABLE_WORDCOMPLETION
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typedef struct completion_word {
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char *word;
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struct completion_word *next;
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} completion_word;
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#endif
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/* The elements of the interface that can be colored differently. */
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enum
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{
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TITLE_BAR = 0,
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LINE_NUMBER,
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STATUS_BAR,
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KEY_COMBO,
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FUNCTION_TAG,
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NUMBER_OF_ELEMENTS
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};
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/* Enumeration used in the flags array. See the definition of FLAGMASK. */
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enum
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{
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DONTUSE,
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CASE_SENSITIVE,
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CONST_UPDATE,
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NO_HELP,
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SUSPEND,
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NO_WRAP,
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AUTOINDENT,
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VIEW_MODE,
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USE_MOUSE,
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USE_REGEXP,
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TEMP_FILE,
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CUT_TO_END,
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BACKWARDS_SEARCH,
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MULTIBUFFER,
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SMOOTH_SCROLL,
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REBIND_DELETE,
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REBIND_KEYPAD,
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NO_CONVERT,
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BACKUP_FILE,
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INSECURE_BACKUP,
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NO_COLOR_SYNTAX,
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PRESERVE,
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HISTORYLOG,
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RESTRICTED,
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SMART_HOME,
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WHITESPACE_DISPLAY,
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MORE_SPACE,
|
|
TABS_TO_SPACES,
|
|
QUICK_BLANK,
|
|
WORD_BOUNDS,
|
|
NO_NEWLINES,
|
|
BOLD_TEXT,
|
|
QUIET,
|
|
SOFTWRAP,
|
|
POS_HISTORY,
|
|
LOCKING,
|
|
NOREAD_MODE,
|
|
MAKE_IT_UNIX,
|
|
JUSTIFY_TRIM,
|
|
SHOW_CURSOR,
|
|
LINE_NUMBERS
|
|
};
|
|
|
|
/* Flags for the menus in which a given function should be present. */
|
|
#define MMAIN (1<<0)
|
|
#define MWHEREIS (1<<1)
|
|
#define MREPLACE (1<<2)
|
|
#define MREPLACEWITH (1<<3)
|
|
#define MGOTOLINE (1<<4)
|
|
#define MWRITEFILE (1<<5)
|
|
#define MINSERTFILE (1<<6)
|
|
#define MEXTCMD (1<<7)
|
|
#define MHELP (1<<8)
|
|
#define MSPELL (1<<9)
|
|
#define MBROWSER (1<<10)
|
|
#define MWHEREISFILE (1<<11)
|
|
#define MGOTODIR (1<<12)
|
|
#define MYESNO (1<<13)
|
|
#define MLINTER (1<<14)
|
|
/* This is an abbreviation for all menus except Help and YesNo. */
|
|
#define MMOST (MMAIN|MWHEREIS|MREPLACE|MREPLACEWITH|MGOTOLINE|MWRITEFILE|MINSERTFILE|\
|
|
MEXTCMD|MBROWSER|MWHEREISFILE|MGOTODIR|MSPELL|MLINTER)
|
|
|
|
/* Basic control codes. */
|
|
#define TAB_CODE 0x09
|
|
#define ESC_CODE 0x1B
|
|
#define DEL_CODE 0x7F
|
|
|
|
/* Codes for "modified" Arrow keys, beyond KEY_MAX of ncurses. */
|
|
#define CONTROL_LEFT 0x401
|
|
#define CONTROL_RIGHT 0x402
|
|
#define CONTROL_UP 0x403
|
|
#define CONTROL_DOWN 0x404
|
|
#define SHIFT_CONTROL_LEFT 0x405
|
|
#define SHIFT_CONTROL_RIGHT 0x406
|
|
#define SHIFT_CONTROL_UP 0x407
|
|
#define SHIFT_CONTROL_DOWN 0x408
|
|
#define SHIFT_ALT_LEFT 0x409
|
|
#define SHIFT_ALT_RIGHT 0x40a
|
|
#define SHIFT_ALT_UP 0x40b
|
|
#define SHIFT_ALT_DOWN 0x40c
|
|
#define SHIFT_PAGEUP 0x40d
|
|
#define SHIFT_PAGEDOWN 0x40e
|
|
#define SHIFT_HOME 0x40f
|
|
#define SHIFT_END 0x410
|
|
|
|
#ifndef NANO_TINY
|
|
/* An imaginary key for when we get a SIGWINCH (window resize). */
|
|
#define KEY_WINCH -2
|
|
|
|
/* Some extra flags for the undo function. */
|
|
#define WAS_FINAL_BACKSPACE (1<<1)
|
|
#define WAS_WHOLE_LINE (1<<2)
|
|
/* The flags for the mark need to be the highest. */
|
|
#define MARK_WAS_SET (1<<3)
|
|
#define WAS_MARKED_FORWARD (1<<4)
|
|
#endif /* !NANO_TINY */
|
|
|
|
/* The maximum number of entries displayed in the main shortcut list. */
|
|
#define MAIN_VISIBLE (((COLS + 40) / 20) * 2)
|
|
|
|
/* 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
|
|
|
|
/* The largest size_t number that doesn't have the high bit set. */
|
|
#define HIGHEST_POSITIVE ((~(size_t)0) >> 1)
|
|
|
|
#endif /* !NANO_H */
|