604 lines
16 KiB
C
604 lines
16 KiB
C
/* $Id$ */
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/**************************************************************************
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* nano.h *
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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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* 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 3, 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 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) (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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#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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#ifndef NANO_TINY
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#include <setjmp.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 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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OVERWRITE, APPEND, PREPEND
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} append_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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CENTER, NONE
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} update_type;
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typedef enum {
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CONTROL, META, FKEY, RAWINPUT
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} key_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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JOIN, PASTE, INSERT, ENTER, OTHER
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} undo_type;
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typedef struct color_pair {
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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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bool bright;
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/* Is this color A_BOLD? */
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} color_pair;
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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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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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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 *ext_regex;
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/* The regexstrings for the things that match this syntax. */
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regex_t *ext;
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/* The compiled regexes. */
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struct regexlisttype *next;
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/* Next set of regexes. */
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} regexlisttype;
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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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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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colortype *color;
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/* The colors used in this syntax. */
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char *linter;
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/* The command to lint this type of file. */
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char *formatter;
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/* Use this formatter command (for programming lang mainly) */
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int nmultis;
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/* How many multi-line 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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#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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#define CWTF (1<<6)
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/* Something else. */
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#endif /* !DISABLE_COLOR */
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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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#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 {
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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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int xflags;
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/* Some flag data we need. */
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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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bool mark_set;
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/* Was the marker set when we cut? */
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ssize_t mark_begin_lineno;
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/* copy copy copy */
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size_t mark_begin_x;
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/* Another shadow variable. */
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struct undo *next;
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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 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 x position we would like. */
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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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undo *undotop;
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/* 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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const 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 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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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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#endif
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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 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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char *keystr;
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/* The shortcut key for a function, ASCII version. */
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key_type type;
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/* What kind of command key it is, for convenience later. */
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int seq;
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/* The actual sequence to check on the type is determined. */
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int menu;
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/* What list 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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int toggle;
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/* If a toggle, what we're toggling. */
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bool execute;
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/* Whether to execute the function in question or just return
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* so the sequence can be caught by the calling code. */
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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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/* What function this is. */
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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 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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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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#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, if nonzero what toggle to set. */
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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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/* 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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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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NOFOLLOW_SYMLINKS,
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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,
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TABS_TO_SPACES,
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QUICK_BLANK,
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WORD_BOUNDS,
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NO_NEWLINES,
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BOLD_TEXT,
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QUIET,
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SOFTWRAP,
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POS_HISTORY,
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LOCKING,
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NOREAD_MODE
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};
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/* Flags for the menus in which a given function should be present. */
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#define MMAIN (1<<0)
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#define MWHEREIS (1<<1)
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#define MREPLACE (1<<2)
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#define MREPLACEWITH (1<<3)
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#define MGOTOLINE (1<<4)
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#define MWRITEFILE (1<<5)
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#define MINSERTFILE (1<<6)
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#define MEXTCMD (1<<7)
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#define MHELP (1<<8)
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#define MSPELL (1<<9)
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#define MBROWSER (1<<10)
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#define MWHEREISFILE (1<<11)
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#define MGOTODIR (1<<12)
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#define MYESNO (1<<13)
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#define MLINTER (1<<14)
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/* This is an abbreviation for all menus except Help and YesNo. */
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#define MMOST (MMAIN|MWHEREIS|MREPLACE|MREPLACEWITH|MGOTOLINE|MWRITEFILE|MINSERTFILE|MEXTCMD|MBROWSER|MWHEREISFILE|MGOTODIR|MSPELL|MLINTER)
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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_I 9
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#define NANO_CONTROL_3 27
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#define NANO_CONTROL_7 31
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#define NANO_CONTROL_8 127
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/* Codes for "modified" Arrow keys. Chosen like this because some
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* terminals produce them, and they are beyond KEY_MAX of ncurses. */
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#define CONTROL_LEFT 539
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#define CONTROL_RIGHT 554
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#ifndef NANO_TINY
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/* Extra bits for the undo function. */
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#define UNdel_del (1<<0)
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#define UNdel_backspace (1<<1)
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#define UNcut_marked_forward (1<<2)
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#define UNcut_cutline (1<<3)
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#endif /* !NANO_TINY */
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/* The maximum number of entries displayed in the main shortcut list. */
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#define MAIN_VISIBLE (((COLS + 40) / 20) * 2)
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|
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/* The minimum editor window columns and rows required for nano to work
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* correctly. */
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#define MIN_EDITOR_COLS 4
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#define MIN_EDITOR_ROWS 1
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|
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/* The default number of characters from the end of the line where
|
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* wrapping occurs. */
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#define CHARS_FROM_EOL 8
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|
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/* The default width of a tab in spaces. */
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#define WIDTH_OF_TAB 8
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|
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/* The maximum number of search/replace history strings saved, not
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* counting the blank lines at their ends. */
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#define MAX_SEARCH_HISTORY 100
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/* The maximum number of bytes buffered at one time. */
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|
#define MAX_BUF_SIZE 128
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#endif /* !NANO_H */
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