smol/src/nano.h

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/* $Id$ */
/**************************************************************************
* nano.h *
* *
* Copyright (C) 1999-2004 Chris Allegretta *
* Copyright (C) 2005-2006 David Lawrence Ramsey *
* 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 2, 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 __TANDEM
/* Tandem NonStop Kernel. */
#include <floss.h>
#define NANO_ROOT_UID 65535
#else
#define NANO_ROOT_UID 0
#endif
#ifdef HAVE_LIMITS_H
#include <limits.h>
#endif
/* Macros for flags. */
#define SET(bit) flags |= bit
#define UNSET(bit) flags &= ~bit
#define ISSET(bit) ((flags & bit) != 0)
#define TOGGLE(bit) flags ^= bit
/* Macros for character allocation, etc. */
#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))
/* Other macros. */
#ifdef BROKEN_REGEXEC
#undef regexec
#define regexec(preg, string, nmatch, pmatch, eflags) safe_regexec(preg, string, nmatch, pmatch, eflags)
#endif
/* 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 2: 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_NCURSES_H)
#include <ncurses.h>
#else
/* Curses support. */
#include <curses.h>
#endif /* CURSES_H */
#ifdef ENABLE_NLS
#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
#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 don't have regex support, turn the color support off, as it
* depends on the use of regexes. */
#ifndef HAVE_REGEX_H
#undef ENABLE_COLOR
#endif
/* If we aren't using ncurses, turn the mouse support off, as it's
* ncurses-specific. */
#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, DOWN
} scroll_dir;
typedef enum {
CENTER, NONE
} update_type;
/* 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. */
} 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;
#ifdef ENABLE_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. */
} 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. */
colortype *color;
/* The colors used in this syntax. */
struct syntaxtype *next;
/* Next syntax. */
} syntaxtype;
#endif /* ENABLE_COLOR */
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 place we want. */
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. */
#endif
#ifdef ENABLE_COLOR
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. */
#endif
bool blank_after;
/* Whether there should be a blank line after the help entry
* text for this function. */
/* Key values that aren't used should be set to NANO_NO_KEY. */
int ctrlval;
/* The special sentinel key or control key we want bound, if
* any. */
int metaval;
/* The meta key we want bound, if any. */
int funcval;
/* The function key we want bound, if any. */
int miscval;
/* The other meta key we want bound, if any. */
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 NANO_TINY
typedef struct toggle {
int val;
/* The sequence to toggle the key. We should only need one. */
const char *desc;
/* The description of the toggle, e.g. "Cut to end"; we'll
* append Enabled or Disabled to it. */
bool blank_after;
/* Whether there should be a blank line after the description of
* the toggle. */
long flag;
/* Which flag actually gets toggled. */
struct toggle *next;
/* Next toggle. */
} toggle;
#endif
#ifdef ENABLE_NANORC
typedef struct rcoption {
const char *name;
/* The name of the rcfile option. */
long flag;
/* The flag associated with it, if any. */
} rcoption;
#endif
/* Bitwise flags so that we can save space (or, more correctly, not
* waste it). */
#define CASE_SENSITIVE (1<<0)
#define CONST_UPDATE (1<<1)
#define NO_HELP (1<<2)
#define NOFOLLOW_SYMLINKS (1<<3)
#define SUSPEND (1<<4)
#define NO_WRAP (1<<5)
#define AUTOINDENT (1<<6)
#define VIEW_MODE (1<<7)
#define USE_MOUSE (1<<8)
#define USE_REGEXP (1<<9)
#define TEMP_FILE (1<<10)
#define CUT_TO_END (1<<11)
#define BACKWARDS_SEARCH (1<<12)
#define MULTIBUFFER (1<<13)
#define SMOOTH_SCROLL (1<<14)
#define REBIND_DELETE (1<<15)
#define REBIND_KEYPAD (1<<16)
#define NO_CONVERT (1<<17)
#define BACKUP_FILE (1<<18)
#define NO_RCFILE (1<<19)
#define NO_COLOR_SYNTAX (1<<20)
#define PRESERVE (1<<21)
#define HISTORYLOG (1<<22)
#define RESTRICTED (1<<23)
#define SMART_HOME (1<<24)
#define WHITESPACE_DISPLAY (1<<25)
#define MORE_SPACE (1<<26)
#define TABS_TO_SPACES (1<<27)
#define QUICK_BLANK (1<<28)
#define WORD_BOUNDS (1<<29)
#define NO_NEWLINES (1<<30)
#define BOLD_TEXT (1<<31)
/* Control key sequences. Changing these would be very, very bad. */
#define NANO_CONTROL_SPACE 0
#define NANO_CONTROL_A 1
#define NANO_CONTROL_B 2
#define NANO_CONTROL_C 3
#define NANO_CONTROL_D 4
#define NANO_CONTROL_E 5
#define NANO_CONTROL_F 6
#define NANO_CONTROL_G 7
#define NANO_CONTROL_H 8
#define NANO_CONTROL_I 9
#define NANO_CONTROL_J 10
#define NANO_CONTROL_K 11
#define NANO_CONTROL_L 12
#define NANO_CONTROL_M 13
#define NANO_CONTROL_N 14
#define NANO_CONTROL_O 15
#define NANO_CONTROL_P 16
#define NANO_CONTROL_Q 17
#define NANO_CONTROL_R 18
#define NANO_CONTROL_S 19
#define NANO_CONTROL_T 20
#define NANO_CONTROL_U 21
#define NANO_CONTROL_V 22
#define NANO_CONTROL_W 23
#define NANO_CONTROL_X 24
#define NANO_CONTROL_Y 25
#define NANO_CONTROL_Z 26
#define NANO_CONTROL_3 27
#define NANO_CONTROL_4 28
#define NANO_CONTROL_5 29
#define NANO_CONTROL_6 30
#define NANO_CONTROL_7 31
#define NANO_CONTROL_8 127
#define NANO_ALT_SPACE ' '
#define NANO_ALT_LPAREN '('
#define NANO_ALT_RPAREN ')'
#define NANO_ALT_PLUS '+'
#define NANO_ALT_COMMA ','
#define NANO_ALT_MINUS '-'
#define NANO_ALT_PERIOD '.'
#define NANO_ALT_SLASH '/'
#define NANO_ALT_0 '0'
#define NANO_ALT_9 '9'
#define NANO_ALT_LCARAT '<'
#define NANO_ALT_EQUALS '='
#define NANO_ALT_RCARAT '>'
#define NANO_ALT_QUESTION '?'
#define NANO_ALT_BACKSLASH '\\'
#define NANO_ALT_RBRACKET ']'
#define NANO_ALT_UNDERSCORE '_'
#define NANO_ALT_A 'a'
#define NANO_ALT_B 'b'
#define NANO_ALT_C 'c'
#define NANO_ALT_D 'd'
#define NANO_ALT_E 'e'
#define NANO_ALT_F 'f'
#define NANO_ALT_G 'g'
#define NANO_ALT_H 'h'
#define NANO_ALT_I 'i'
#define NANO_ALT_J 'j'
#define NANO_ALT_K 'k'
#define NANO_ALT_L 'l'
#define NANO_ALT_M 'm'
#define NANO_ALT_N 'n'
#define NANO_ALT_O 'o'
#define NANO_ALT_P 'p'
#define NANO_ALT_Q 'q'
#define NANO_ALT_R 'r'
#define NANO_ALT_S 's'
#define NANO_ALT_T 't'
#define NANO_ALT_U 'u'
#define NANO_ALT_V 'v'
#define NANO_ALT_W 'w'
#define NANO_ALT_X 'x'
#define NANO_ALT_Y 'y'
#define NANO_ALT_Z 'z'
#define NANO_ALT_PIPE '|'
/* Some semi-changeable keybindings; don't play with these unless you're
* sure you know what you're doing. Assume ERR is defined as -1. */
/* No key at all. */
#define NANO_NO_KEY -2
/* Normal keys. */
#define NANO_XON_KEY NANO_CONTROL_Q
#define NANO_XOFF_KEY NANO_CONTROL_S
#define NANO_CANCEL_KEY NANO_CONTROL_C
#define NANO_EXIT_KEY NANO_CONTROL_X
#define NANO_EXIT_FKEY KEY_F(2)
#define NANO_INSERTFILE_KEY NANO_CONTROL_R
#define NANO_INSERTFILE_FKEY KEY_F(5)
#define NANO_TOOTHERINSERT_KEY NANO_CONTROL_X
#define NANO_WRITEOUT_KEY NANO_CONTROL_O
#define NANO_WRITEOUT_FKEY KEY_F(3)
#define NANO_GOTOLINE_KEY NANO_CONTROL_7
#define NANO_GOTOLINE_FKEY KEY_F(13)
#define NANO_GOTOLINE_ALTKEY NANO_ALT_G
#define NANO_TOGOTOLINE_KEY NANO_CONTROL_T
#define NANO_HELP_KEY NANO_CONTROL_G
#define NANO_HELP_FKEY KEY_F(1)
#define NANO_WHEREIS_KEY NANO_CONTROL_W
#define NANO_WHEREIS_FKEY KEY_F(6)
#define NANO_WHEREIS_NEXT_KEY NANO_ALT_W
#define NANO_WHEREIS_NEXT_FKEY KEY_F(16)
#define NANO_TOOTHERWHEREIS_KEY NANO_CONTROL_T
#define NANO_REGEXP_KEY NANO_ALT_R
#define NANO_REPLACE_KEY NANO_CONTROL_4
#define NANO_REPLACE_FKEY KEY_F(14)
#define NANO_ALT_REPLACE_KEY NANO_ALT_R
#define NANO_TOOTHERSEARCH_KEY NANO_CONTROL_R
#define NANO_PREVPAGE_KEY NANO_CONTROL_Y
#define NANO_PREVPAGE_FKEY KEY_F(7)
#define NANO_NEXTPAGE_KEY NANO_CONTROL_V
#define NANO_NEXTPAGE_FKEY KEY_F(8)
#define NANO_CUT_KEY NANO_CONTROL_K
#define NANO_CUT_FKEY KEY_F(9)
#define NANO_UNCUT_KEY NANO_CONTROL_U
#define NANO_UNCUT_FKEY KEY_F(10)
#define NANO_CURSORPOS_KEY NANO_CONTROL_C
#define NANO_CURSORPOS_FKEY KEY_F(11)
#define NANO_SPELL_KEY NANO_CONTROL_T
#define NANO_SPELL_FKEY KEY_F(12)
#define NANO_FIRSTLINE_KEY NANO_PREVPAGE_KEY
#define NANO_FIRSTLINE_FKEY NANO_PREVPAGE_FKEY
#define NANO_FIRSTLINE_ALTKEY NANO_ALT_BACKSLASH
#define NANO_FIRSTLINE_ALTKEY2 NANO_ALT_PIPE
#define NANO_FIRSTFILE_KEY NANO_FIRSTLINE_KEY
#define NANO_FIRSTFILE_FKEY NANO_FIRSTLINE_FKEY
#define NANO_FIRSTFILE_ALTKEY NANO_FIRSTLINE_ALTKEY
#define NANO_FIRSTFILE_ALTKEY2 NANO_FIRSTLINE_ALTKEY2
#define NANO_LASTLINE_KEY NANO_NEXTPAGE_KEY
#define NANO_LASTLINE_FKEY NANO_NEXTPAGE_FKEY
#define NANO_LASTLINE_ALTKEY NANO_ALT_SLASH
#define NANO_LASTLINE_ALTKEY2 NANO_ALT_QUESTION
#define NANO_LASTFILE_KEY NANO_LASTLINE_KEY
#define NANO_LASTFILE_FKEY NANO_LASTLINE_FKEY
#define NANO_LASTFILE_ALTKEY NANO_LASTLINE_ALTKEY
#define NANO_LASTFILE_ALTKEY2 NANO_LASTLINE_ALTKEY2
#define NANO_REFRESH_KEY NANO_CONTROL_L
#define NANO_JUSTIFY_KEY NANO_CONTROL_J
#define NANO_JUSTIFY_FKEY KEY_F(4)
#define NANO_UNJUSTIFY_KEY NANO_UNCUT_KEY
#define NANO_UNJUSTIFY_FKEY NANO_UNCUT_FKEY
#define NANO_PREVLINE_KEY NANO_CONTROL_P
#define NANO_NEXTLINE_KEY NANO_CONTROL_N
#define NANO_FORWARD_KEY NANO_CONTROL_F
#define NANO_BACK_KEY NANO_CONTROL_B
#define NANO_MARK_KEY NANO_CONTROL_6
#define NANO_MARK_ALTKEY NANO_ALT_A
#define NANO_MARK_FKEY KEY_F(15)
#define NANO_HOME_KEY NANO_CONTROL_A
#define NANO_END_KEY NANO_CONTROL_E
#define NANO_DELETE_KEY NANO_CONTROL_D
#define NANO_BACKSPACE_KEY NANO_CONTROL_H
#define NANO_TAB_KEY NANO_CONTROL_I
#define NANO_SUSPEND_KEY NANO_CONTROL_Z
#define NANO_ENTER_KEY NANO_CONTROL_M
#define NANO_TOFILES_KEY NANO_CONTROL_T
#define NANO_APPEND_KEY NANO_ALT_A
#define NANO_PREPEND_KEY NANO_ALT_P
#define NANO_PREVFILE_KEY NANO_ALT_LCARAT
#define NANO_NEXTFILE_KEY NANO_ALT_RCARAT
#define NANO_PREVFILE_ALTKEY NANO_ALT_COMMA
#define NANO_NEXTFILE_ALTKEY NANO_ALT_PERIOD
#define NANO_BRACKET_KEY NANO_ALT_RBRACKET
#define NANO_NEXTWORD_KEY NANO_CONTROL_SPACE
#define NANO_PREVWORD_KEY NANO_ALT_SPACE
#define NANO_WORDCOUNT_KEY NANO_ALT_D
#define NANO_SCROLLUP_KEY NANO_ALT_MINUS
#define NANO_SCROLLDOWN_KEY NANO_ALT_PLUS
#define NANO_SCROLLUP_ALTKEY NANO_ALT_UNDERSCORE
#define NANO_SCROLLDOWN_ALTKEY NANO_ALT_EQUALS
#define NANO_CUTTILLEND_KEY NANO_CONTROL_X
#define NANO_CUTTILLEND_ALTKEY NANO_ALT_T
#define NANO_PARABEGIN_KEY NANO_CONTROL_W
#define NANO_PARABEGIN_ALTKEY NANO_ALT_LPAREN
#define NANO_PARABEGIN_ALTKEY NANO_ALT_9
#define NANO_PARAEND_KEY NANO_CONTROL_O
#define NANO_PARAEND_ALTKEY NANO_ALT_RPAREN
#define NANO_PARAEND_ALTKEY NANO_ALT_0
#define NANO_FULLJUSTIFY_KEY NANO_CONTROL_U
#define NANO_FULLJUSTIFY_ALTKEY NANO_ALT_J
#define NANO_VERBATIM_KEY NANO_ALT_V
/* Toggles do not exist if NANO_TINY is defined. */
#ifndef NANO_TINY
/* No toggle at all. */
#define TOGGLE_NO_KEY -2
/* Normal toggles. */
#define TOGGLE_NOHELP_KEY NANO_ALT_X
#define TOGGLE_CONST_KEY NANO_ALT_C
#define TOGGLE_MORESPACE_KEY NANO_ALT_O
#define TOGGLE_SMOOTH_KEY NANO_ALT_S
#define TOGGLE_WHITESPACE_KEY NANO_ALT_P
#define TOGGLE_SYNTAX_KEY NANO_ALT_Y
#define TOGGLE_SMARTHOME_KEY NANO_ALT_H
#define TOGGLE_AUTOINDENT_KEY NANO_ALT_I
#define TOGGLE_CUTTOEND_KEY NANO_ALT_K
#define TOGGLE_WRAP_KEY NANO_ALT_L
#define TOGGLE_TABSTOSPACES_KEY NANO_ALT_Q
#define TOGGLE_BACKUP_KEY NANO_ALT_B
#define TOGGLE_MULTIBUFFER_KEY NANO_ALT_F
#define TOGGLE_MOUSE_KEY NANO_ALT_M
#define TOGGLE_NOCONVERT_KEY NANO_ALT_N
#define TOGGLE_SUSPEND_KEY NANO_ALT_Z
#define TOGGLE_CASE_KEY NANO_ALT_C
#define TOGGLE_BACKWARDS_KEY NANO_ALT_B
#define TOGGLE_DOS_KEY NANO_ALT_D
#define TOGGLE_MAC_KEY NANO_ALT_M
#endif /* !NANO_TINY */
#define MAIN_VISIBLE 12
#define VIEW TRUE
#define NOVIEW FALSE
/* The minimum editor window columns and rows required for nano to work
* correctly. */
#define MIN_EDITOR_COLS 4
#define MIN_EDITOR_ROWS 1
/* The default number of characters from the end of the line where
* wrapping occurs. */
#define CHARS_FROM_EOL 8
/* The default width of a tab in spaces. */
#define WIDTH_OF_TAB 8
/* The maximum number of search/replace history strings saved, not
* counting the blank lines at their ends. */
#define MAX_SEARCH_HISTORY 100
/* The maximum number of bytes buffered at one time. */
#define MAX_BUF_SIZE 128
#endif /* !NANO_H */