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smol/src/nano.h

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/* $Id$ */
/**************************************************************************
* nano.h *
* *
* Copyright (C) 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, *
* 2008, 2009, 2010, 2011, 2013, 2014 Free Software Foundation, Inc. *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 3, or (at your option) *
* any later version. *
* *
* This program is distributed in the hope that it will be useful, but *
* WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU *
* General Public License for more details. *
* *
* You should have received a copy of the GNU General Public License *
* along with this program; if not, write to the Free Software *
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA *
* 02110-1301, USA. *
* *
**************************************************************************/
#ifndef NANO_H
#define NANO_H 1
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#ifdef NEED_XOPEN_SOURCE_EXTENDED
#ifndef _XOPEN_SOURCE_EXTENDED
#define _XOPEN_SOURCE_EXTENDED 1
#endif /* _XOPEN_SOURCE_EXTENDED */
#endif /* NEED_XOPEN_SOURCE_EXTENDED */
#ifdef __TANDEM
/* Tandem NonStop Kernel support. */
#include <floss.h>
#define NANO_ROOT_UID 65535
#else
#define NANO_ROOT_UID 0
#endif
#ifdef HAVE_LIMITS_H
#include <limits.h>
#endif
#ifdef HAVE_SYS_PARAM_H
#include <sys/param.h>
#endif
#ifdef HAVE_STDARG_H
#include <stdarg.h>
#endif
/* Suppress warnings for __attribute__((warn_unused_result)) */
#define IGNORE_CALL_RESULT(call) do { if (call) {} } while(0)
/* Macros for flags. */
#define FLAGOFF(flag) ((flag) / (sizeof(unsigned) * 8))
#define FLAGMASK(flag) (1 << ((flag) % (sizeof(unsigned) * 8)))
#define FLAGS(flag) flags[FLAGOFF(flag)]
#define SET(flag) FLAGS(flag) |= FLAGMASK(flag)
#define UNSET(flag) FLAGS(flag) &= ~FLAGMASK(flag)
#define ISSET(flag) ((FLAGS(flag) & FLAGMASK(flag)) != 0)
#define TOGGLE(flag) FLAGS(flag) ^= FLAGMASK(flag)
/* Macros for character allocation and more. */
#define charalloc(howmuch) (char *)nmalloc((howmuch) * sizeof(char))
#define charealloc(ptr, howmuch) (char *)nrealloc(ptr, (howmuch) * sizeof(char))
#define charmove(dest, src, n) memmove(dest, src, (n) * sizeof(char))
#define charset(dest, src, n) memset(dest, src, (n) * sizeof(char))
/* Set a default value for PATH_MAX if there isn't one. */
#ifndef PATH_MAX
#define PATH_MAX 4096
#endif
#ifdef USE_SLANG
/* Slang support. */
#include <slcurses.h>
/* Slang curses emulation brain damage, part 3: Slang doesn't define the
* curses equivalents of the Insert or Delete keys. */
#define KEY_DC SL_KEY_DELETE
#define KEY_IC SL_KEY_IC
/* Ncurses support. */
#elif defined(HAVE_NCURSESW_NCURSES_H)
#include <ncursesw/ncurses.h>
#elif defined(HAVE_NCURSES_H)
#include <ncurses.h>
#else
/* Curses support. */
#include <curses.h>
#endif /* CURSES_H */
#ifdef ENABLE_NLS
/* Native language support. */
#ifdef HAVE_LIBINTL_H
#include <libintl.h>
#endif
#define _(string) gettext(string)
#define P_(singular, plural, number) ngettext(singular, plural, number)
#else
#define _(string) (string)
#define P_(singular, plural, number) (number == 1 ? singular : plural)
#endif
#define gettext_noop(string) (string)
#define N_(string) gettext_noop(string)
/* Mark a string that will be sent to gettext() later. */
#include <stddef.h>
#include <stdlib.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <dirent.h>
#ifdef HAVE_REGEX_H
#include <regex.h>
#endif
#ifndef NANO_TINY
#include <setjmp.h>
#endif
#include <assert.h>
/* If no vsnprintf(), use the version from glib 2.x. */
#ifndef HAVE_VSNPRINTF
#include <glib.h>
#define vsnprintf g_vsnprintf
#endif
/* If no isblank(), iswblank(), strcasecmp(), strncasecmp(),
* strcasestr(), strnlen(), getdelim(), or getline(), use the versions
* we have. */
#ifndef HAVE_ISBLANK
#define isblank nisblank
#endif
#ifndef HAVE_ISWBLANK
#define iswblank niswblank
#endif
#ifndef HAVE_STRCASECMP
#define strcasecmp nstrcasecmp
#endif
#ifndef HAVE_STRNCASECMP
#define strncasecmp nstrncasecmp
#endif
#ifndef HAVE_STRCASESTR
#define strcasestr nstrcasestr
#endif
#ifndef HAVE_STRNLEN
#define strnlen nstrnlen
#endif
#ifndef HAVE_GETDELIM
#define getdelim ngetdelim
#endif
#ifndef HAVE_GETLINE
#define getline ngetline
#endif
/* If we aren't using ncurses with mouse support, turn the mouse support
* off, as it's useless then. */
#ifndef NCURSES_MOUSE_VERSION
#define DISABLE_MOUSE 1
#endif
#if defined(DISABLE_WRAPPING) && defined(DISABLE_JUSTIFY)
#define DISABLE_WRAPJUSTIFY 1
#endif
/* Enumeration types. */
typedef enum {
NIX_FILE, DOS_FILE, MAC_FILE
} file_format;
typedef enum {
OVERWRITE, APPEND, PREPEND
} append_type;
typedef enum {
UP_DIR, DOWN_DIR
} scroll_dir;
typedef enum {
CENTER, NONE
} update_type;
typedef enum {
CONTROL, META, FKEY, RAWINPUT
} function_type;
typedef enum {
ADD, DEL, REPLACE, SPLIT, UNSPLIT, CUT, UNCUT, ENTER, INSERT, OTHER
} undo_type;
typedef struct color_pair {
int pairnum;
/* The color pair number used for this foreground color and
* background color. */
bool bright;
/* Is this color A_BOLD? */
} color_pair;
#ifndef DISABLE_COLOR
typedef struct colortype {
short fg;
/* This syntax's foreground color. */
short bg;
/* This syntax's background color. */
bool bright;
/* Is this color A_BOLD? */
bool icase;
/* Is this regex string case insensitive? */
int pairnum;
/* The color pair number used for this foreground color and
* background color. */
char *start_regex;
/* The start (or all) of the regex string. */
regex_t *start;
/* The compiled start (or all) of the regex string. */
char *end_regex;
/* The end (if any) of the regex string. */
regex_t *end;
/* The compiled end (if any) of the regex string. */
struct colortype *next;
/* Next set of colors. */
int id;
/* Basic id for assigning to lines later. */
} colortype;
typedef struct exttype {
char *ext_regex;
/* The extensions that match this syntax. */
regex_t *ext;
/* The compiled extensions that match this syntax. */
struct exttype *next;
/* Next set of extensions. */
} exttype;
typedef struct syntaxtype {
char *desc;
/* The name of this syntax. */
exttype *extensions;
/* The list of extensions that this syntax applies to. */
exttype *headers;
/* Regexes to match on the 'header' (1st line) of the file. */
exttype *magics;
/* Regexes to match libmagic results. */
colortype *color;
/* The colors used in this syntax. */
char *linter;
/* Command to lint this type of file. */
int nmultis;
/* How many multi-line strings this syntax has. */
struct syntaxtype *next;
/* Next syntax. */
} syntaxtype;
typedef struct lintstruct {
ssize_t lineno;
/* Line number of the error. */
ssize_t colno;
/* Column # of the error. */
char *msg;
/* Error message text. */
char *filename;
/* Filename. */
struct lintstruct *next;
/* Next error. */
struct lintstruct *prev;
/* Previous error. */
} lintstruct;
#define CNONE (1<<1)
/* Yay, regex doesn't apply to this line at all! */
#define CBEGINBEFORE (1<<2)
/* Regex starts on an earlier line, ends on this one. */
#define CENDAFTER (1<<3)
/* Regex starts on this line and ends on a later one. */
#define CWHOLELINE (1<<4)
/* Whole line engulfed by the regex, start < me, end > me. */
#define CSTARTENDHERE (1<<5)
/* Regex starts and ends within this line. */
#define CWTF (1<<6)
/* Something else. */
#endif /* !DISABLE_COLOR */
/* Structure types. */
typedef struct filestruct {
char *data;
/* The text of this line. */
ssize_t lineno;
/* The number of this line. */
struct filestruct *next;
/* Next node. */
struct filestruct *prev;
/* Previous node. */
#ifndef DISABLE_COLOR
short *multidata;
/* Array of which multi-line regexes apply to this line. */
#endif
} filestruct;
typedef struct partition {
filestruct *fileage;
/* The top line of this portion of the file. */
filestruct *top_prev;
/* The line before the top line of this portion of the file. */
char *top_data;
/* The text before the beginning of the top line of this portion
* of the file. */
filestruct *filebot;
/* The bottom line of this portion of the file. */
filestruct *bot_next;
/* The line after the bottom line of this portion of the
* file. */
char *bot_data;
/* The text after the end of the bottom line of this portion of
* the file. */
} partition;
#ifndef NANO_TINY
typedef struct undo {
ssize_t lineno;
undo_type type;
/* What type of undo this was. */
int begin;
/* Where did this action begin or end. */
char *strdata;
/* String type data we will use for copying the affected line back. */
char *strdata2;
/* Sigh, need this too, it looks like. */
int xflags;
/* Some flag data we need. */
/* Cut-specific stuff we need. */
filestruct *cutbuffer;
/* Copy of the cutbuffer. */
filestruct *cutbottom;
/* Copy of cutbottom. */
bool mark_set;
/* Was the marker set when we cut? */
bool to_end;
/* Was this a cut to end? */
ssize_t mark_begin_lineno;
/* copy copy copy */
ssize_t mark_begin_x;
/* Another shadow variable. */
struct undo *next;
} undo;
typedef struct poshiststruct {
char *filename;
/* The file. */
ssize_t lineno;
/* Line number we left off on. */
ssize_t xno;
/* x position in the file we left off on. */
struct poshiststruct *next;
} poshiststruct;
#endif /* !NANO_TINY */
typedef struct openfilestruct {
char *filename;
/* The current file's name. */
filestruct *fileage;
/* The current file's first line. */
filestruct *filebot;
/* The current file's last line. */
filestruct *edittop;
/* The current top of the edit window. */
filestruct *current;
/* The current file's current line. */
size_t totsize;
/* The current file's total number of characters. */
size_t current_x;
/* The current file's x-coordinate position. */
size_t placewewant;
/* The current file's x position we would like. */
ssize_t current_y;
/* The current file's y-coordinate position. */
bool modified;
/* Whether the current file has been modified. */
#ifndef NANO_TINY
bool mark_set;
/* Whether the mark is on in the current file. */
filestruct *mark_begin;
/* The current file's beginning marked line, if any. */
size_t mark_begin_x;
/* The current file's beginning marked line's x-coordinate
* position, if any. */
file_format fmt;
/* The current file's format. */
struct stat *current_stat;
/* The current file's stat. */
undo *undotop;
/* Top of the undo list. */
undo *current_undo;
/* The current (i.e. next) level of undo. */
undo_type last_action;
const char *lock_filename;
/* The path of the lockfile, if we created one. */
#endif
#ifndef DISABLE_COLOR
syntaxtype *syntax;
/* The syntax struct for this file, if any. */
colortype *colorstrings;
/* The current file's associated colors. */
#endif
struct openfilestruct *next;
/* Next node. */
struct openfilestruct *prev;
/* Previous node. */
} openfilestruct;
typedef struct shortcut {
const char *desc;
/* The function's description, e.g. "Page Up". */
#ifndef DISABLE_HELP
const char *help;
/* The help file entry text for this function. */
bool blank_after;
/* Whether there should be a blank line after the help entry
* text for this function. */
#endif
bool viewok;
/* Is this function allowed when in view mode? */
void (*func)(void);
/* The function to call when we get this key. */
struct shortcut *next;
/* Next shortcut. */
} shortcut;
#ifndef DISABLE_NANORC
typedef struct rcoption {
const char *name;
/* The name of the rcfile option. */
long flag;
/* The flag associated with it, if any. */
} rcoption;
#endif
typedef struct sc {
char *keystr;
/* The shortcut key for a function, ASCII version. */
function_type type;
/* What kind of function key it is, for convenience later. */
int seq;
/* The actual sequence to check on the type is determined. */
int menu;
/* What list this applies to. */
void (*scfunc)(void);
/* The function we're going to run. */
int toggle;
/* If a toggle, what we're toggling. */
bool execute;
/* Whether to execute the function in question or just return
* so the sequence can be caught by the calling code. */
struct sc *next;
/* Next in the list. */
} sc;
typedef struct subnfunc {
void (*scfunc)(void);
/* What function this is. */
int menus;
/* In what menus this function applies. */
const char *desc;
/* The function's description, e.g. "Page Up". */
#ifndef DISABLE_HELP
const char *help;
/* The help file entry text for this function. */
bool blank_after;
/* Whether there should be a blank line after the help entry
* text for this function. */
#endif
bool viewok;
/* Is this function allowed when in view mode? */
long toggle;
/* If this is a toggle, if nonzero what toggle to set. */
struct subnfunc *next;
/* Next item in the list. */
} subnfunc;
/* The elements of the interface that can be colored differently. */
enum
{
TITLE_BAR = 0,
STATUS_BAR,
KEY_COMBO,
FUNCTION_TAG,
NUMBER_OF_ELEMENTS
};
/* Enumeration to be used in flags table. See FLAGBIT and FLAGOFF
* definitions. */
enum
{
DONTUSE,
CASE_SENSITIVE,
CONST_UPDATE,
NO_HELP,
NOFOLLOW_SYMLINKS,
SUSPEND,
NO_WRAP,
AUTOINDENT,
VIEW_MODE,
USE_MOUSE,
USE_REGEXP,
TEMP_FILE,
CUT_TO_END,
BACKWARDS_SEARCH,
MULTIBUFFER,
SMOOTH_SCROLL,
REBIND_DELETE,
REBIND_KEYPAD,
NO_CONVERT,
BACKUP_FILE,
INSECURE_BACKUP,
NO_COLOR_SYNTAX,
PRESERVE,
HISTORYLOG,
RESTRICTED,
SMART_HOME,
WHITESPACE_DISPLAY,
MORE_SPACE,
TABS_TO_SPACES,
QUICK_BLANK,
WORD_BOUNDS,
NO_NEWLINES,
BOLD_TEXT,
QUIET,
UNDOABLE,
SOFTWRAP,
POS_HISTORY,
LOCKING,
NOREAD_MODE
};
/* 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)
/* Control key sequences. Changing these would be very, very bad. */
#define NANO_CONTROL_SPACE 0
#define NANO_CONTROL_I 9
#define NANO_CONTROL_3 27
#define NANO_CONTROL_7 31
#define NANO_CONTROL_8 127
#ifndef NANO_TINY
/* Extra bits for the undo function. */
#define UNdel_del (1<<0)
#define UNdel_backspace (1<<1)
#define UNsplit_madenew (1<<2)
#endif /* !NANO_TINY */
#define VIEW TRUE
#define NOVIEW FALSE
/* The maximum number of entries displayed in the main shortcut list. */
#define MAIN_VISIBLE (((COLS + 40) / 20) * 2)
/* 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 */
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