markmental/evil-qemacs
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions
evil-qemacs/qe.h
Charlie Gordon 6b0e73b689 compile parser.c separately 
* publish parse_config_file() and parse_arg()
* change Makefile to compile objects for tiny version separately
2014-02-03 20:03:07 +00:00

1897 lines
63 KiB
C
Raw Blame History

/*
* QEmacs, tiny but powerful multimode editor
*
* Copyright (c) 2000-2001 Fabrice Bellard.
* Copyright (c) 2000-2014 Charlie Gordon.
*
* 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 of the License, 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., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#ifndef QE_H
#define QE_H
#include <stdlib.h>
#include <stdio.h>
#include <stddef.h>
#include <stdarg.h>
#include <string.h>
#include <unistd.h>
#include <fcntl.h>
#include <signal.h>
#include <sys/stat.h>
#include <sys/time.h>
#include <errno.h>
#include <limits.h>
#include <inttypes.h>
#ifdef HAVE_QE_CONFIG_H
#include "config.h"
#endif
/* OS specific defines */
#ifdef CONFIG_WIN32
#define snprintf _snprintf
#define vsnprintf _vsnprintf
#endif
#if (defined(__GNUC__) || defined(__TINYC__))
/* make sure that the keyword is not disabled by glibc (TINYC case) */
#undef __attribute__
#define __attr_printf(a, b) __attribute__((format(printf, a, b)))
#else
#ifndef __attribute__
#define __attribute__(l)
#endif
#define __attr_printf(a, b)
#endif
#if defined(__GNUC__) && __GNUC__ > 2
#define __attr_nonnull(l) __attribute__((nonnull l))
#define __unused__ __attribute__((unused))
#else
#define __attr_nonnull(l)
#define __unused__
#endif
#ifdef __SPARSE__
#define __bitwise__ __attribute__((bitwise))
#define force_cast(type, expr) ((__attribute__((force))type)(expr))
#else
#define __bitwise__
#define force_cast(type, expr) ((type)(expr))
#endif
#ifndef offsetof
#define offsetof(s,m) ((size_t)(&((s *)0)->m))
#endif
#ifndef countof
#define countof(a) ((int)(sizeof(a) / sizeof((a)[0])))
#endif
#ifndef ssizeof
#define ssizeof(a) ((int)(sizeof(a)))
#endif
/* prevent gcc warning about shadowing a global declaration */
#define index index__
/************************/
#include "cutils.h"
/************************/
/* allocation wrappers and utilities */
void *qe_malloc_bytes(size_t size);
void *qe_mallocz_bytes(size_t size);
void *qe_malloc_dup(const void *src, size_t size);
char *qe_strdup(const char *str);
void *qe_realloc(void *pp, size_t size);
#define qe_malloc(t) ((t *)qe_malloc_bytes(sizeof(t)))
#define qe_mallocz(t) ((t *)qe_mallocz_bytes(sizeof(t)))
#define qe_malloc_array(t, n) ((t *)qe_malloc_bytes((n) * sizeof(t)))
#define qe_mallocz_array(t, n) ((t *)qe_mallocz_bytes((n) * sizeof(t)))
#define qe_malloc_hack(t, n) ((t *)qe_malloc_bytes(sizeof(t) + (n)))
#define qe_mallocz_hack(t, n) ((t *)qe_mallocz_bytes(sizeof(t) + (n)))
#ifdef CONFIG_HAS_TYPEOF
#define qe_free(pp) do { typeof(**(pp)) **__ = (pp); (free)(*__); *__ = NULL; } while (0)
#else
#define qe_free(pp) \
do if (sizeof(**(pp)) >= 0) { void *_ = (pp); (free)(*(void **)_); *(void **)_ = NULL; } while (0)
#endif
#ifndef free
#define free(p) do_not_use_free!!(p)
#endif
#ifndef malloc
#define malloc(s) do_not_use_malloc!!(s)
#endif
#ifndef realloc
#define realloc(p,s) do_not_use_realloc!!(p,s)
#endif
/************************/
typedef unsigned char u8;
typedef struct EditState EditState;
typedef struct EditBuffer EditBuffer;
typedef struct QEmacsState QEmacsState;
static inline char *s8(u8 *p) { return (char*)p; }
static inline const char *cs8(const u8 *p) { return (const char*)p; }
#ifndef INT_MAX
#define INT_MAX 0x7fffffff
#endif
#ifndef INT_MIN
#define INT_MIN (-0x7fffffff-1)
#endif
#define NO_ARG INT_MIN
#define MAX_FILENAME_SIZE 1024 /* Size for a filename buffer */
#define MAX_BUFFERNAME_SIZE 256 /* Size for a buffer name buffer */
#define MAX_CMDNAME_SIZE 32 /* Size for a command name buffer */
extern const char str_version[];
extern const char str_credits[];
extern int debug_flags;
/* low level I/O events */
void set_read_handler(int fd, void (*cb)(void *opaque), void *opaque);
void set_write_handler(int fd, void (*cb)(void *opaque), void *opaque);
int set_pid_handler(int pid,
void (*cb)(void *opaque, int status), void *opaque);
void url_exit(void);
void register_bottom_half(void (*cb)(void *opaque), void *opaque);
void unregister_bottom_half(void (*cb)(void *opaque), void *opaque);
typedef struct QETimer QETimer;
QETimer *qe_add_timer(int delay, void *opaque, void (*cb)(void *opaque));
void qe_kill_timer(QETimer **tip);
/* main loop for Unix programs using liburlio */
void url_main_loop(void (*init)(void *opaque), void *opaque);
/* util.c */
/* string arrays */
typedef struct StringItem {
void *opaque; /* opaque data that the user can use */
char selected; /* true if selected */
char str[1];
} StringItem;
typedef struct StringArray {
int nb_allocated;
int nb_items;
StringItem **items;
} StringArray;
#define NULL_STRINGARRAY { 0, 0, NULL }
typedef struct CompleteState {
StringArray cs;
struct EditState *s;
char current[MAX_FILENAME_SIZE];
int len;
} CompleteState;
/* media definitions */
#define CSS_MEDIA_TTY 0x0001
#define CSS_MEDIA_SCREEN 0x0002
#define CSS_MEDIA_PRINT 0x0004
#define CSS_MEDIA_TV 0x0008
#define CSS_MEDIA_SPEECH 0x0010
#define CSS_MEDIA_ALL 0xffff
typedef struct CSSRect {
int x1, y1, x2, y2;
} CSSRect;
typedef unsigned int QEColor;
#define QEARGB(a,r,g,b) (((a) << 24) | ((r) << 16) | ((g) << 8) | (b))
#define QERGB(r,g,b) QEARGB(0xff, r, g, b)
#define COLOR_TRANSPARENT 0
#define QECOLOR_XOR 1
typedef struct FindFileState FindFileState;
FindFileState *find_file_open(const char *path, const char *pattern);
int find_file_next(FindFileState *s, char *filename, int filename_size_max);
void find_file_close(FindFileState **sp);
int is_directory(const char *path);
void canonicalize_path(char *buf, int buf_size, const char *path);
void canonicalize_absolute_path(char *buf, int buf_size, const char *path1);
char *make_user_path(char *buf, int buf_size, const char *path);
char *reduce_filename(char *dest, int size, const char *filename);
int match_extension(const char *filename, const char *extlist);
int remove_slash(char *buf);
int append_slash(char *buf, int buf_size);
char *makepath(char *buf, int buf_size, const char *path, const char *filename);
void splitpath(char *dirname, int dirname_size,
char *filename, int filename_size, const char *pathname);
static inline int qe_inrange(int c, int a, int b) {
return c >= a && c <= b;
}
static inline int qe_isspace(int c) {
/* CG: what about \v and \f */
return (c == ' ' || c == '\t' || c == '\n' || c == '\r');
}
static inline int qe_isblank(int c) {
return (c == ' ' || c == '\t');
}
static inline int qe_isdigit(int c) {
return qe_inrange(c, '0', '9');
}
static inline int qe_isupper(int c) {
return qe_inrange(c, 'A', 'Z');
}
static inline int qe_islower(int c) {
return qe_inrange(c, 'a', 'z');
}
static inline int qe_isalpha(int c) {
return qe_inrange(c | ('a' - 'A'), 'a', 'z');
}
static inline int qe_isalpha_(int c) {
return (qe_inrange(c | ('a' - 'A'), 'a', 'z') || c == '_');
}
static inline int qe_isxdigit(int c) {
return (qe_inrange(c, '0', '9') ||
qe_inrange(c | ('a' - 'A'), 'a', 'f'));
}
static inline int qe_isalnum(int c) {
return (qe_inrange(c, '0', '9') ||
qe_inrange(c | ('a' - 'A'), 'a', 'z'));
}
static inline int qe_isalnum_(int c) {
return (qe_inrange(c, '0', '9') ||
qe_inrange(c | ('a' - 'A'), 'a', 'z') ||
c == '_');
}
static inline int qe_isword(int c) {
/* XXX: any unicode char >= 128 is considered as word. */
return qe_isalnum_(c) || (c >= 128);
}
static inline int qe_isaccent(int c) {
/* XXX: only check Latin combining marks */
return qe_inrange(c, 0x300, 0x362);
}
static inline int qe_toupper(int c) {
return (qe_inrange(c, 'a', 'z') ? c + 'A' - 'a' : c);
}
static inline int qe_tolower(int c) {
return (qe_inrange(c, 'A', 'Z') ? c + 'a' - 'A' : c);
}
int qe_strcollate(const char *s1, const char *s2);
void qe_strtolower(char *buf, int buf_size, const char *str);
void skip_spaces(const char **pp);
static inline int strequal(const char *s1, const char *s2) {
return !strcmp(s1, s2);
}
int strfind(const char *list, const char *s);
int strxfind(const char *list, const char *s);
const void *memstr(const void *buf, int size, const char *str);
#define stristart(str, val, ptr) qe_stristart(str, val, ptr)
int stristart(const char *str, const char *val, const char **ptr);
int strxstart(const char *str, const char *val, const char **ptr);
int strxcmp(const char *str1, const char *str2);
int ustrstart(const unsigned int *str, const char *val,
const unsigned int **pp);
int ustristart(const unsigned int *str, const char *val,
const unsigned int **pp);
const unsigned int *ustrstr(const unsigned int *str, const char *val);
const unsigned int *ustristr(const unsigned int *str, const char *val);
static inline unsigned int *umemmove(unsigned int *dest,
const unsigned int *src, int count) {
return (unsigned int *)memmove(dest, src, count * sizeof(unsigned int));
}
static inline unsigned int *umemcpy(unsigned int *dest,
const unsigned int *src, int count) {
return (unsigned int *)memcpy(dest, src, count * sizeof(unsigned int));
}
int umemcmp(const unsigned int *s1, const unsigned int *s2, int count);
int strsubst(char *buf, int buf_size, const char *from,
const char *s1, const char *s2);
int strquote(char *dest, int size, const char *str, int len);
int strunquote(char *dest, int size, const char *str, int len);
void get_str(const char **pp, char *buf, int buf_size, const char *stop);
int css_get_enum(const char *str, const char *enum_str);
int to_hex(int key);
void color_completion(CompleteState *cp);
int css_define_color(const char *name, const char *value);
int css_get_color(QEColor *color_ptr, const char *p);
void css_free_colors(void);
int css_get_font_family(const char *str);
void css_union_rect(CSSRect *a, const CSSRect *b);
static inline int css_is_null_rect(const CSSRect *a) {
return (a->x2 <= a->x1 || a->y2 <= a->y1);
}
static inline void css_set_rect(CSSRect *a, int x1, int y1, int x2, int y2) {
a->x1 = x1;
a->y1 = y1;
a->x2 = x2;
a->y2 = y2;
}
/* return true if a and b intersect */
static inline int css_is_inter_rect(const CSSRect *a, const CSSRect *b) {
return (!(a->x2 <= b->x1 ||
a->x1 >= b->x2 ||
a->y2 <= b->y1 ||
a->y1 >= b->y2));
}
int get_clock_ms(void);
int get_clock_usec(void);
/* Various string packages: should unify these but keep API simple */
StringItem *set_string(StringArray *cs, int index, const char *str);
StringItem *add_string(StringArray *cs, const char *str);
void free_strings(StringArray *cs);
/* simple dynamic strings wrappers. The strings are always terminated
by zero except if they are empty. */
typedef struct QString {
u8 *data;
int len; /* string length excluding trailing '\0' */
} QString;
static inline void qstrinit(QString *q) {
q->data = NULL;
q->len = 0;
}
static inline void qstrfree(QString *q) {
qe_free(&q->data);
}
int qmemcat(QString *q, const u8 *data1, int len1);
int qstrcat(QString *q, const char *str);
int qprintf(QString *q, const char *fmt, ...) __attr_printf(2,3);
/* Dynamic buffers with static allocation */
typedef struct buf_t buf_t;
struct buf_t {
char *buf;
int size, len, pos;
};
static inline buf_t *buf_init(buf_t *bp, char *buf, int size) {
if (size > 0) {
bp->buf = buf;
bp->size = size;
*buf = '\0';
} else {
bp->buf = NULL;
bp->size = 0;
}
bp->len = bp->pos = 0;
return bp;
}
static inline buf_t *buf_attach(buf_t *bp, char *buf, int size, int pos) {
/* assuming 0 <= pos < size */
bp->buf = buf;
bp->size = size;
bp->len = bp->pos = pos;
return bp;
}
static inline int buf_avail(buf_t *bp) {
return bp->size - bp->pos - 1;
}
static inline int buf_put_byte(buf_t *bp, int c) {
if (bp->len < bp->size - 1) {
bp->buf[bp->len++] = c;
bp->buf[bp->len] = '\0';
}
return bp->pos++;
}
int buf_write(buf_t *bp, const void *src, int size);
static inline int buf_puts(buf_t *bp, const char *str) {
return buf_write(bp, str, strlen(str));
}
int buf_printf(buf_t *bp, const char *fmt, ...) __attr_printf(2,3);
int buf_putc_utf8(buf_t *bp, int c);
/* command line option */
#define CMD_OPT_ARG 0x0001 /* argument */
#define CMD_OPT_STRING 0x0002 /* string */
#define CMD_OPT_BOOL 0x0004 /* boolean */
#define CMD_OPT_INT 0x0008 /* int */
typedef struct CmdOptionDef {
const char *name;
const char *shortname;
const char *argname;
int flags;
const char *help;
union {
const char **string_ptr;
int *int_ptr;
void (*func_noarg)(void);
void (*func_arg)(const char *);
struct CmdOptionDef *next;
} u;
} CmdOptionDef;
void qe_register_cmd_line_options(CmdOptionDef *table);
int find_resource_file(char *path, int path_size, const char *pattern);
typedef int (CSSAbortFunc)(void *);
static inline int max(int a, int b) {
if (a > b)
return a;
else
return b;
}
static inline int min(int a, int b) {
if (a < b)
return a;
else
return b;
}
static inline int clamp(int a, int b, int c) {
if (a < b)
return b;
else
if (a > c)
return c;
else
return a;
}
static inline int compute_percent(int a, int b) {
return b <= 0 ? 0 : (int)((long long)a * 100 / b);
}
int compose_keys(unsigned int *keys, int *nb_keys);
int strtokey(const char **pp);
int strtokeys(const char *keystr, unsigned int *keys, int max_keys);
int buf_put_key(buf_t *out, int key);
int buf_put_keys(buf_t *out, unsigned int *keys, int nb_keys);
/* charset.c */
/* maximum number of bytes for a character in all the supported charsets */
#define MAX_CHAR_BYTES 6
typedef struct CharsetDecodeState CharsetDecodeState;
typedef struct QECharset QECharset;
struct QECharset {
const char *name;
const char *aliases;
void (*decode_init)(CharsetDecodeState *s);
int (*decode_func)(CharsetDecodeState *s);
/* return NULL if cannot encode. Currently no state since speed is
not critical yet */
u8 *(*encode_func)(QECharset *charset, u8 *buf, int size);
void (*get_pos_func)(CharsetDecodeState *s, const u8 *buf, int size,
int *line_ptr, int *col_ptr);
int (*get_chars_func)(QECharset *charset, const u8 *buf, int size);
int (*goto_char_func)(QECharset *charset, const u8 *buf, int size, int pos);
int (*goto_line_func)(QECharset *charset, const u8 *buf, int size, int lines);
unsigned int char_size : 3;
unsigned int variable_size : 1;
unsigned int table_alloc : 1; /* true if CharsetDecodeState.table must be malloced */
/* private data for some charsets */
u8 eol_char; /* 0x0A for ASCII, 0x25 for EBCDIC */
u8 min_char, max_char;
const unsigned short *private_table;
struct QECharset *next;
};
extern QECharset *first_charset;
extern QECharset charset_utf8, charset_8859_1; /* predefined charsets */
extern QECharset charset_vt100; /* used for the tty output */
extern QECharset charset_ucs2le, charset_ucs2be;
extern QECharset charset_ucs4le, charset_ucs4be;
struct CharsetDecodeState {
/* 256 ushort table for hyper fast decoding */
unsigned short *table;
int char_size;
const u8 *p;
/* slower decode function for complicated cases */
int (*decode_func)(CharsetDecodeState *s);
void (*get_pos_func)(CharsetDecodeState *s, const u8 *buf, int size,
int *line_ptr, int *col_ptr);
QECharset *charset;
};
#define INVALID_CHAR 0xfffd
#define ESCAPE_CHAR 0xffff
void charset_init(void);
int charset_more_init(void);
int charset_jis_init(void);
void qe_register_charset(QECharset *charset);
extern unsigned char utf8_length[256];
int utf8_encode(char *q, int c);
int utf8_decode(const char **pp);
int utf8_to_unicode(unsigned int *dest, int dest_length, const char *str);
void charset_completion(CompleteState *cp);
QECharset *find_charset(const char *str);
void charset_decode_init(CharsetDecodeState *s, QECharset *charset);
void charset_decode_close(CharsetDecodeState *s);
void charset_get_pos_8bit(CharsetDecodeState *s, const u8 *buf, int size,
int *line_ptr, int *col_ptr);
int charset_get_chars_8bit(QECharset *charset, const u8 *buf, int size);
int charset_goto_char_8bit(QECharset *charset, const u8 *buf, int size, int pos);
int charset_goto_line_8bit(QECharset *charset, const u8 *buf, int size, int nlines);
QECharset *detect_charset(const u8 *buf, int size);
void decode_8bit_init(CharsetDecodeState *s);
int decode_8bit(CharsetDecodeState *s);
u8 *encode_8bit(QECharset *charset, u8 *q, int c);
int unicode_glyph_tty_width(unsigned int ucs);
int unicode_to_charset(char *buf, unsigned int c, QECharset *charset);
/* arabic.c */
int arab_join(unsigned int *line, unsigned int *ctog, int len);
/* indic.c */
int devanagari_log2vis(unsigned int *str, unsigned int *ctog, int len);
/* unicode_join.c */
int unicode_to_glyphs(unsigned int *dst, unsigned int *char_to_glyph_pos,
int dst_size, unsigned int *src, int src_size,
int reverse);
int combine_accent(unsigned int *buf, int c, int accent);
int expand_ligature(unsigned int *buf, int c);
int load_ligatures(void);
void unload_ligatures(void);
/* qe event handling */
enum QEEventType {
QE_KEY_EVENT,
QE_EXPOSE_EVENT, /* full redraw */
QE_UPDATE_EVENT, /* update content */
QE_BUTTON_PRESS_EVENT, /* mouse button press event */
QE_BUTTON_RELEASE_EVENT, /* mouse button release event */
QE_MOTION_EVENT, /* mouse motion event */
QE_SELECTION_CLEAR_EVENT, /* request selection clear (X11 type selection) */
};
#define KEY_CTRL(c) ((c) & 0x001f)
#define KEY_META(c) ((c) | 0xe000)
#define KEY_ESC1(c) ((c) | 0xe100)
#define KEY_CTRLX(c) ((c) | 0xe200)
#define KEY_CTRLXRET(c) ((c) | 0xe300)
#define KEY_CTRLH(c) ((c) | 0xe500)
#define KEY_CTRLC(c) ((c) | 0xe600)
#define KEY_SPECIAL(c) (((c) >= 0xe000 && (c) < 0xf000) || ((c) >= 0 && (c) < 32) || (c) == 127)
#define KEY_NONE 0xffff
#define KEY_DEFAULT 0xe401 /* to handle all non special keys */
#define KEY_TAB KEY_CTRL('i')
#define KEY_RET KEY_CTRL('m')
#define KEY_ESC KEY_CTRL('[')
#define KEY_SPC 0x0020
#define KEY_DEL 127 // kbs
#define KEY_BS KEY_CTRL('h') // kbs
#define KEY_UP KEY_ESC1('A') // kcuu1
#define KEY_DOWN KEY_ESC1('B') // kcud1
#define KEY_RIGHT KEY_ESC1('C') // kcuf1
#define KEY_LEFT KEY_ESC1('D') // kcub1
#define KEY_CTRL_UP KEY_ESC1('a')
#define KEY_CTRL_DOWN KEY_ESC1('b')
#define KEY_CTRL_RIGHT KEY_ESC1('c')
#define KEY_CTRL_LEFT KEY_ESC1('d')
#define KEY_CTRL_END KEY_ESC1('f')
#define KEY_CTRL_HOME KEY_ESC1('h')
#define KEY_CTRL_PAGEUP KEY_ESC1('i')
#define KEY_CTRL_PAGEDOWN KEY_ESC1('j')
#define KEY_SHIFT_TAB KEY_ESC1('Z') // kcbt
#define KEY_HOME KEY_ESC1(1) // khome
#define KEY_INSERT KEY_ESC1(2) // kich1
#define KEY_DELETE KEY_ESC1(3) // kdch1
#define KEY_END KEY_ESC1(4) // kend
#define KEY_PAGEUP KEY_ESC1(5) // kpp
#define KEY_PAGEDOWN KEY_ESC1(6) // knp
#define KEY_F1 KEY_ESC1(11)
#define KEY_F2 KEY_ESC1(12)
#define KEY_F3 KEY_ESC1(13)
#define KEY_F4 KEY_ESC1(14)
#define KEY_F5 KEY_ESC1(15)
#define KEY_F6 KEY_ESC1(17)
#define KEY_F7 KEY_ESC1(18)
#define KEY_F8 KEY_ESC1(19)
#define KEY_F9 KEY_ESC1(20)
#define KEY_F10 KEY_ESC1(21)
#define KEY_F11 KEY_ESC1(23)
#define KEY_F12 KEY_ESC1(24)
#define KEY_F13 KEY_ESC1(25)
#define KEY_F14 KEY_ESC1(26)
#define KEY_F15 KEY_ESC1(28)
#define KEY_F16 KEY_ESC1(29)
#define KEY_F17 KEY_ESC1(31)
#define KEY_F18 KEY_ESC1(32)
#define KEY_F19 KEY_ESC1(33)
#define KEY_F20 KEY_ESC1(34)
typedef struct QEKeyEvent {
enum QEEventType type;
int key;
} QEKeyEvent;
typedef struct QEExposeEvent {
enum QEEventType type;
/* currently, no more info */
} QEExposeEvent;
#define QE_BUTTON_LEFT 0x0001
#define QE_BUTTON_MIDDLE 0x0002
#define QE_BUTTON_RIGHT 0x0004
#define QE_WHEEL_UP 0x0008
#define QE_WHEEL_DOWN 0x0010
/* should probably go somewhere else, or in the config file */
/* how many text lines to scroll when mouse wheel is used */
#define WHEEL_SCROLL_STEP 4
typedef struct QEButtonEvent {
enum QEEventType type;
int x;
int y;
int button;
} QEButtonEvent;
typedef struct QEMotionEvent {
enum QEEventType type;
int x;
int y;
} QEMotionEvent;
typedef union QEEvent {
enum QEEventType type;
QEKeyEvent key_event;
QEExposeEvent expose_event;
QEButtonEvent button_event;
QEMotionEvent motion_event;
} QEEvent;
void qe_handle_event(QEEvent *ev);
/* CG: Should optionally attach grab to a window */
/* CG: Should deal with opaque object life cycle */
void qe_grab_keys(void (*cb)(void *opaque, int key), void *opaque);
void qe_ungrab_keys(void);
/* buffer.c */
/* begin to mmap files from this size */
#define MIN_MMAP_SIZE (1024*1024)
#define MAX_LOAD_SIZE (512*1024*1024)
#define MAX_PAGE_SIZE 4096
//#define MAX_PAGE_SIZE 16
#define NB_LOGS_MAX 100000 /* need better way to limit undo information */
#define PG_READ_ONLY 0x0001 /* the page is read only */
#define PG_VALID_POS 0x0002 /* set if the nb_lines / col fields are up to date */
#define PG_VALID_CHAR 0x0004 /* nb_chars is valid */
#define PG_VALID_COLORS 0x0008 /* color state is valid */
typedef struct Page {
int size; /* data size */
u8 *data;
int flags;
/* the following are needed to handle line / column computation */
int nb_lines; /* Number of EOL characters in data */
int col; /* Number of chars since the last EOL */
/* the following is needed for char offset computation */
int nb_chars;
} Page;
#define DIR_LTR 0
#define DIR_RTL 1
typedef int DirType;
enum LogOperation {
LOGOP_FREE = 0,
LOGOP_WRITE,
LOGOP_INSERT,
LOGOP_DELETE,
};
/* Each buffer modification can be caught with this callback */
typedef void (*EditBufferCallback)(EditBuffer *b, void *opaque, int arg,
enum LogOperation op, int offset, int size);
typedef struct EditBufferCallbackList {
void *opaque;
int arg;
EditBufferCallback callback;
struct EditBufferCallbackList *next;
} EditBufferCallbackList;
/* buffer flags */
#define BF_SAVELOG 0x0001 /* activate buffer logging */
#define BF_SYSTEM 0x0002 /* buffer system, cannot be seen by the user */
#define BF_READONLY 0x0004 /* read only buffer */
#define BF_PREVIEW 0x0008 /* used in dired mode to mark previewed files */
#define BF_LOADING 0x0010 /* buffer is being loaded */
#define BF_SAVING 0x0020 /* buffer is being saved */
#define BF_DIRED 0x0100 /* buffer is interactive dired */
#define BF_UTF8 0x0200 /* buffer charset is utf-8 */
#define BF_RAW 0x0400 /* buffer charset is raw (no charset translation) */
#define BF_TRANSIENT 0x0800 /* buffer is deleted upon window close */
#define BF_STYLES 0x3000 /* buffer has styles */
#define BF_STYLE1 0x1000 /* buffer has 1 byte styles */
#define BF_STYLE2 0x2000 /* buffer has 2 byte styles */
#define BF_STYLE4 0x3000 /* buffer has 4 byte styles */
struct EditBuffer {
Page *page_table;
int nb_pages;
int mark; /* current mark (moved with text) */
int total_size; /* total size of the buffer */
int modified;
/* page cache */
Page *cur_page;
int cur_offset;
int file_handle; /* if the file is kept open because it is mapped,
its handle is there */
int flags;
/* buffer data type (default is raw) */
struct EditBufferDataType *data_type;
void *data; /* associated buffer data, used if data_type != raw_data */
/* charset handling */
CharsetDecodeState charset_state;
QECharset *charset;
int char_bytes, char_shift;
/* undo system */
int save_log; /* if true, each buffer operation is logged */
int log_new_index, log_current;
enum LogOperation last_log;
int last_log_char;
EditBuffer *log_buffer;
int nb_logs;
/* style system */
EditBuffer *b_styles;
int cur_style;
int style_bytes;
int style_shift;
/* modification callbacks */
EditBufferCallbackList *first_callback;
/* asynchronous loading/saving support */
struct BufferIOState *io_state;
/* used during loading */
int probed;
/* buffer polling & private data */
void *priv_data;
/* called when deleting the buffer */
void (*close)(EditBuffer *);
/* saved data from the last opened mode, needed to restore mode */
/* CG: should instead keep a pointer to last window using this
* buffer, even if no longer on screen
*/
struct ModeSavedData *saved_data;
/* default mode stuff when buffer is detached from window */
int offset; /* used in eval.c */
int tab_width;
int fill_column;
EditBuffer *next; /* next editbuffer in qe_state buffer list */
char name[MAX_BUFFERNAME_SIZE]; /* buffer name */
char filename[MAX_FILENAME_SIZE]; /* file name */
/* Should keep a stat buffer to check for file type and
* asynchronous modifications
*/
};
/* high level buffer type handling */
typedef struct EditBufferDataType {
const char *name; /* name of buffer data type (text, image, ...) */
int (*buffer_load)(EditBuffer *b, FILE *f);
int (*buffer_save)(EditBuffer *b, int start, int end, const char *filename);
void (*buffer_close)(EditBuffer *b);
struct EditBufferDataType *next;
} EditBufferDataType;
/* the log buffer is used for the undo operation */
/* header of log operation */
typedef struct LogBuffer {
u8 pad1, pad2; /* for Log buffer readability */
u8 op;
u8 was_modified;
int offset;
int size;
} LogBuffer;
void eb_trace_bytes(const void *buf, int size, int state);
void eb_init(void);
int eb_read(EditBuffer *b, int offset, void *buf, int size);
void eb_write(EditBuffer *b, int offset, const void *buf, int size);
int eb_insert_buffer(EditBuffer *dest, int dest_offset,
EditBuffer *src, int src_offset,
int size);
int eb_insert(EditBuffer *b, int offset, const void *buf, int size);
void eb_delete(EditBuffer *b, int offset, int size);
void eb_replace(EditBuffer *b, int offset, int size,
const void *buf, int size1);
void log_reset(EditBuffer *b);
EditBuffer *eb_new(const char *name, int flags);
EditBuffer *eb_scratch(const char *name, int flags);
void eb_clear(EditBuffer *b);
void eb_free(EditBuffer **ep);
EditBuffer *eb_find(const char *name);
EditBuffer *eb_find_new(const char *name, int flags);
EditBuffer *eb_find_file(const char *filename);
EditState *eb_find_window(EditBuffer *b, EditState *e);
void eb_set_charset(EditBuffer *b, QECharset *charset);
__attr_nonnull((3))
int eb_nextc(EditBuffer *b, int offset, int *next_ptr);
__attr_nonnull((3))
int eb_prevc(EditBuffer *b, int offset, int *prev_ptr);
int eb_skip_chars(EditBuffer *b, int offset, int n);
int eb_delete_chars(EditBuffer *b, int offset, int n);
int eb_goto_pos(EditBuffer *b, int line1, int col1);
int eb_get_pos(EditBuffer *b, int *line_ptr, int *col_ptr, int offset);
int eb_goto_char(EditBuffer *b, int pos);
int eb_get_char_offset(EditBuffer *b, int offset);
int eb_delete_range(EditBuffer *b, int p1, int p2);
//int eb_clip_offset(EditBuffer *b, int offset);
void do_undo(EditState *s);
void do_redo(EditState *s);
int raw_buffer_load1(EditBuffer *b, FILE *f, int offset);
int mmap_buffer(EditBuffer *b, const char *filename);
int eb_write_buffer(EditBuffer *b, int start, int end, const char *filename);
int eb_save_buffer(EditBuffer *b);
void eb_set_buffer_name(EditBuffer *b, const char *name1);
void eb_set_filename(EditBuffer *b, const char *filename);
int eb_add_callback(EditBuffer *b, EditBufferCallback cb, void *opaque, int arg);
void eb_free_callback(EditBuffer *b, EditBufferCallback cb, void *opaque);
void eb_offset_callback(EditBuffer *b, void *opaque, int edge,
enum LogOperation op, int offset, int size);
int eb_create_style_buffer(EditBuffer *b, int flags);
void eb_free_style_buffer(EditBuffer *b);
void eb_set_style(EditBuffer *b, int style, enum LogOperation op,
int offset, int size);
void eb_style_callback(EditBuffer *b, void *opaque, int arg,
enum LogOperation op, int offset, int size);
int eb_delete_uchar(EditBuffer *b, int offset);
int eb_insert_uchar(EditBuffer *b, int offset, int c);
int eb_insert_utf8_buf(EditBuffer *b, int offset, const char *buf, int len);
int eb_insert_str(EditBuffer *b, int offset, const char *str);
int eb_match_uchar(EditBuffer *b, int offset, int c, int *offsetp);
int eb_match_str(EditBuffer *b, int offset, const char *str, int *offsetp);
int eb_match_istr(EditBuffer *b, int offset, const char *str, int *offsetp);
int eb_printf(EditBuffer *b, const char *fmt, ...) __attr_printf(2,3);
void eb_line_pad(EditBuffer *b, int n);
int eb_get_contents(EditBuffer *b, char *buf, int buf_size);
int eb_insert_buffer_convert(EditBuffer *dest, int dest_offset,
EditBuffer *src, int src_offset,
int size);
int eb_get_line(EditBuffer *b, unsigned int *buf, int buf_size,
int *offset_ptr);
int eb_get_strline(EditBuffer *b, char *buf, int buf_size,
int *offset_ptr);
int eb_prev_line(EditBuffer *b, int offset);
int eb_goto_bol(EditBuffer *b, int offset);
int eb_goto_bol2(EditBuffer *b, int offset, int *countp);
int eb_is_blank_line(EditBuffer *b, int offset, int *offset1);
int eb_goto_eol(EditBuffer *b, int offset);
int eb_next_line(EditBuffer *b, int offset);
void eb_register_data_type(EditBufferDataType *bdt);
EditBufferDataType *eb_probe_data_type(const char *filename, int st_mode,
uint8_t *buf, int buf_size);
void eb_set_data_type(EditBuffer *b, EditBufferDataType *bdt);
void eb_invalidate_raw_data(EditBuffer *b);
extern EditBufferDataType raw_data_type;
/* qe module handling */
#ifdef QE_MODULE
/* dynamic module case */
#define qe_module_init(fn) \
int __qe_module_init(void) { return fn(); }
#define qe_module_exit(fn) \
void __qe_module_exit(void) { fn(); }
#else /* QE_MODULE */
#if (defined(__GNUC__) || defined(__TINYC__)) && defined(CONFIG_INIT_CALLS)
#if __GNUC__ < 3 || (__GNUC__ == 3 && __GNUC_MINOR__ < 3)
/* same method as the linux kernel... */
#define __init_call __attribute__((unused, __section__ (".initcall.init")))
#define __exit_call __attribute__((unused, __section__ (".exitcall.exit")))
#else
#undef __attribute_used__
#define __attribute_used__ __attribute__((__used__))
#define __init_call __attribute_used__ __attribute__((__section__ (".initcall.init")))
#define __exit_call __attribute_used__ __attribute__((__section__ (".exitcall.exit")))
#endif
#define qe_module_init(fn) \
static int (*__initcall_##fn)(void) __init_call = fn
#define qe_module_exit(fn) \
static void (*__exitcall_##fn)(void) __exit_call = fn
#else
#define __init_call
#define __exit_call
#define qe_module_init(fn) \
extern int module_ ## fn (void); \
int module_ ## fn (void) { return fn(); }
#define qe_module_exit(fn)
#endif
#endif /* QE_MODULE */
/* display.c */
#include "display.h"
/* qe.c */
/* colorize & transform a line, lower level then ColorizeFunc */
typedef int (*GetColorizedLineFunc)(EditState *s,
unsigned int *buf, int buf_size,
int *offset1, int line_num);
/* colorize a line: this function modifies buf to set the char
* styles. 'buf' is guaranted to have one more '\0' char after its len.
*/
typedef void (*ColorizeFunc)(unsigned int *buf, int len,
int *colorize_state_ptr, int state_only);
/* contains all the information necessary to uniquely identify a line,
to avoid displaying it */
typedef struct QELineShadow {
short x_start;
short y;
short height;
unsigned int crc;
} QELineShadow;
enum WrapType {
WRAP_TRUNCATE = 0,
WRAP_LINE,
WRAP_WORD
};
#define DIR_LTR 0
#define DIR_RTL 1
struct EditState {
int offset; /* offset of the cursor */
/* text display state */
int offset_top;
int y_disp; /* virtual position of the displayed text */
int x_disp[2]; /* position for LTR and RTL text resp. */
int minibuf; /* true if single line editing */
int disp_width; /* width in binary, hex and unihex modes */
int hex_mode; /* true if we are currently editing hexa */
int unihex_mode; /* true if unihex editing (width of hex char dump) */
int hex_nibble; /* current hexa nibble */
int insert; /* insert/overtype mode */
int bidir;
int cur_rtl; /* TRUE if the cursor on over RTL chars */
enum WrapType wrap;
int line_numbers;
/* XXX: these should be buffer specific rather than window specific */
int indent_size;
int indent_tabs_mode; /* if true, use tabs to indent */
int interactive; /* true if interaction is done instead of editing
(e.g. for shell mode or HTML) */
int force_highlight; /* if true, force showing of cursor even if
window not focused (list mode only) */
int mouse_force_highlight; /* if true, mouse can force highlight
(list mode only) */
/* low level colorization function */
GetColorizedLineFunc get_colorized_line;
/* colorization function */
ColorizeFunc colorize_func;
/* default text style */
int default_style;
/* after this limit, the fields are not saved into the buffer */
int end_of_saved_data;
/* mode specific info */
struct ModeDef *mode;
void *mode_data; /* mode private data */
EditBuffer *b;
/* state before line n, one byte per line */
unsigned char *colorize_states;
int colorize_nb_lines;
int colorize_nb_valid_lines;
/* maximum valid offset, INT_MAX if not modified. Needed to invalide
'colorize_states' */
int colorize_max_valid_offset;
int busy; /* true if editing cannot be done if the window
(e.g. the parser HTML is parsing the buffer to
produce the display */
int display_invalid; /* true if the display was invalidated. Full
redraw should be done */
int borders_invalid; /* true if window borders should be redrawn */
int show_selection; /* if true, the selection is displayed */
int region_style;
int curline_style;
/* display area info */
int width, height;
int ytop, xleft;
/* full window size, including borders */
int x1, y1, x2, y2; /* window coordinates in device units */
//int xx1, yy1, xx2, yy2; /* window coordinates in 1/1000 */
int flags; /* display flags */
#define WF_POPUP 0x0001 /* popup window (with borders) */
#define WF_MODELINE 0x0002 /* mode line must be displayed */
#define WF_RSEPARATOR 0x0004 /* right window separator */
char *prompt;
//const char *mode_line;
//const char *title;
struct QEmacsState *qe_state;
struct QEditScreen *screen; /* copy of qe_state->screen */
/* display shadow to optimize redraw */
char modeline_shadow[MAX_SCREEN_WIDTH];
QELineShadow *line_shadow; /* per window shadow */
int shadow_nb_lines;
/* compose state for input method */
struct InputMethod *input_method; /* current input method */
struct InputMethod *selected_input_method; /* selected input method (used to switch) */
int compose_len;
int compose_start_offset;
unsigned int compose_buf[20];
EditState *next_window;
};
/* Ugly patch for saving/restoring window data upon switching buffer */
#define SAVED_DATA_SIZE offsetof(EditState, end_of_saved_data)
typedef struct DisplayState DisplayState;
typedef struct ModeProbeData ModeProbeData;
typedef struct ModeSavedData ModeSavedData;
typedef struct ModeDef ModeDef;
struct ModeProbeData {
const char *real_filename;
const char *filename; /* reduced filename for mode matching purposes */
const u8 *buf;
int buf_size;
int line_len;
int st_mode; /* unix file mode */
long total_size;
};
/* private data saved by a mode so that it can be restored when the
mode is started again on a buffer */
struct ModeSavedData {
ModeDef *mode; /* the mode is saved there */
char generic_data[SAVED_DATA_SIZE]; /* generic text data */
int data_size; /* mode specific saved data */
char data[1];
};
struct ModeDef {
const char *name;
const char *extensions;
//const char *mode_line;
int instance_size; /* size of malloced instance */
/* return the percentage of confidence */
int (*mode_probe)(ModeDef *, ModeProbeData *);
int (*mode_init)(EditState *, ModeSavedData *);
void (*mode_close)(EditState *);
/* save the internal state of the mode so that it can be opened
again in the same state */
ModeSavedData *(*mode_save_data)(EditState *s);
/* low level display functions (must be NULL to use text related
functions)*/
void (*display_hook)(EditState *);
void (*display)(EditState *);
/* text related functions */
int (*text_display)(EditState *, DisplayState *, int);
int (*text_backward_offset)(EditState *, int);
ColorizeFunc colorize_func;
/* common functions are defined here */
/* TODO: Should have single move function with move type and argument */
void (*move_up_down)(EditState *, int);
void (*move_left_right)(EditState *, int);
void (*move_bol)(EditState *);
void (*move_eol)(EditState *);
void (*move_word_left_right)(EditState *, int);
void (*scroll_up_down)(EditState *, int);
void (*scroll_line_up_down)(EditState *, int);
void (*write_char)(EditState *, int);
void (*mouse_goto)(EditState *, int x, int y);
int mode_flags;
#define MODEF_NOCMD 0x0001 /* do not register xxx-mode command automatically */
EditBufferDataType *data_type; /* native buffer data type (NULL = raw) */
void (*get_mode_line)(EditState *s, buf_t *out);
/* mode specific key bindings */
struct KeyDef *first_key;
ModeDef *next;
};
/* special bit to indicate tty styles (for shell mode) */
#define QE_STYLE_TTY 0x800
#define TTY_UNDERLINE 0
#define TTY_BOLD (1 << 7)
#define TTY_BLINK (1 << 3)
#define TTY_DEFFG 7
#define TTY_DEFBG 0
#define TTY_MAKE_COLOR(fg, bg) (((fg) << 4) | (bg))
#define TTY_SET_FG_COLOR(color, fg) ((color) = ((color) & ~(15 << 4)) | ((fg) << 4))
#define TTY_SET_BG_COLOR(color, bg) ((color) = ((color) & ~(15)) | ((bg)))
#define TTY_GET_FG(color) (((color) >> 4) & 15)
#define TTY_GET_BG(color) (((color) >> 0) & 15)
/* from tty.c */
extern unsigned int const *tty_bg_colors;
extern int tty_bg_colors_count;
extern unsigned int const *tty_fg_colors;
extern int tty_fg_colors_count;
int get_tty_color(QEColor color, unsigned int const *colors, int count);
int get_tty_style(const char *style);
/* special selection style (cumulative with another style) */
#define QE_STYLE_SEL 0x400
enum QEStyle {
#define STYLE_DEF(constant, name, fg_color, bg_color, \
font_style, font_size) \
constant,
#include "qestyles.h"
#undef STYLE_DEF
QE_STYLE_NB,
};
typedef struct QEStyleDef {
const char *name;
/* if any style is 0, then default edit style applies */
QEColor fg_color, bg_color;
short font_style;
short font_size;
} QEStyleDef;
/* CG: Should register styles as well */
extern QEStyleDef qe_styles[QE_STYLE_NB];
/* QEmacs state structure */
#define NB_YANK_BUFFERS 10
typedef struct QErrorContext {
const char *function;
const char *filename;
int lineno;
} QErrorContext;
typedef void (*CmdFunc)(void);
struct QEmacsState {
QEditScreen *screen;
//struct QEDisplay *first_dpy;
struct ModeDef *first_mode;
struct KeyDef *first_key;
struct CmdDef *first_cmd;
struct CompletionEntry *first_completion;
struct HistoryEntry *first_history;
//struct QECharset *first_charset;
//struct QETimer *first_timer;
struct VarDef *first_variable;
struct InputMethod *input_methods;
EditState *first_window;
EditState *active_window; /* window in which we edit */
EditBuffer *first_buffer;
EditBufferDataType *first_buffer_data_type;
//EditBuffer *message_buffer;
EditBuffer *trace_buffer;
int trace_buffer_state;
#define EB_TRACE_TTY 1
#define EB_TRACE_SHELL 2
#define EB_TRACE_PTY 4
/* global layout info : DO NOT modify these directly. do_refresh
does it */
int status_height;
int mode_line_height;
int content_height; /* height excluding status line */
int width, height;
int border_width;
int separator_width;
/* full screen state */
int hide_status; /* true if status should be hidden */
int complete_refresh;
int is_full_screen;
/* select display aspect for non-latin1 characters:
* 0 (auto) -> display as unicode on utf-8 capable ttys and x11
* 1 (nc) -> display as ? or ?? non character symbols
* 2 (escape) -> display as \uXXXX escape sequence
*/
int show_unicode;
/* commands */
int flag_split_window_change_focus;
int backspace_is_control_h;
/* XXX: move these to ec */
CmdFunc last_cmd_func; /* last executed command function call */
CmdFunc this_cmd_func; /* current executing command */
/* keyboard macros */
int defining_macro;
int executing_macro;
unsigned short *macro_keys;
int nb_macro_keys;
int macro_keys_size;
int macro_key_index; /* -1 means no macro is being executed */
int ungot_key;
/* yank buffers */
EditBuffer *yank_buffers[NB_YANK_BUFFERS];
int yank_current;
int argc; /* command line arguments */
char **argv;
char *tty_charset;
char res_path[1024]; /* exported as QEPATH */
char status_shadow[MAX_SCREEN_WIDTH];
QErrorContext ec;
char system_fonts[NB_FONT_FAMILIES][256];
///* global variables */
int it; /* last result from expression evaluator */
//int force_tty; /* prevent graphics display (X11...) */
//int no_config; /* prevent config file eval */
//int force_refresh; /* force a complete screen refresh */
int ignore_spaces; /* ignore spaces when comparing windows */
int hilite_region; /* hilite the current region when selecting */
int mmap_threshold; /* minimum file size for mmap */
int max_load_size; /* maximum file size for loading in memory */
int default_tab_width; /* 8 */
int default_fill_column; /* 70 */
};
extern QEmacsState qe_state;
/* key bindings definitions */
/* dynamic key binding storage */
#define MAX_KEYS 10
typedef struct KeyDef {
struct KeyDef *next;
struct CmdDef *cmd;
int nb_keys;
unsigned int keys[1];
} KeyDef;
void unget_key(int key);
/* command definitions */
enum CmdArgType {
CMD_ARG_INT = 0,
CMD_ARG_INTVAL,
CMD_ARG_STRING,
CMD_ARG_STRINGVAL,
CMD_ARG_WINDOW,
CMD_ARG_TYPE_MASK = 0x3f,
CMD_ARG_USE_KEY = 0x40,
CMD_ARG_USE_ARGVAL = 0x80,
};
typedef enum CmdSig {
CMD_void = 0,
CMD_ES, /* (ES*) -> void */
CMD_ESi, /* (ES*, int) -> void */
CMD_ESs, /* (ES*, string) -> void */
CMD_ESii, /* (ES*, int, int) -> void */
CMD_ESsi, /* (ES*, string, int) -> void */
CMD_ESss, /* (ES*, string, string) -> void */
CMD_ESssi, /* (ES*, string, string, int) -> void */
CMD_ESsss, /* (ES*, string, string, string) -> void */
} CmdSig;
#define MAX_CMD_ARGS 5
typedef union CmdArg {
EditState *s;
const char *p;
int n;
} CmdArg;
typedef union CmdProto {
void (*func)(void);
void (*ES)(EditState *);
void (*ESi)(EditState *, int);
void (*ESs)(EditState *, const char *);
void (*ESii)(EditState *, int, int);
void (*ESsi)(EditState *, const char *, int);
void (*ESss)(EditState *, const char *, const char *);
void (*ESssi)(EditState *, const char *, const char *, int);
void (*ESsss)(EditState *, const char *, const char *, const char *);
struct CmdDef *next;
} CmdProto;
typedef struct CmdDef {
unsigned short key; /* normal key */
unsigned short alt_key; /* alternate key */
const char *name;
CmdProto action;
CmdSig sig : 8;
signed int val : 24;
} CmdDef;
/* new command macros */
#define CMD2(key, key_alt, name, func, sig, args) \
{ key, key_alt, name "\0" args, { .sig = func }, CMD_ ## sig, 0 },
#define CMD3(key, key_alt, name, func, sig, val, args) \
{ key, key_alt, name "\0" args, { .sig = func }, CMD_ ## sig, val },
/* old macros for compatibility */
#define CMD0(key, key_alt, name, func) \
{ key, key_alt, name "\0", { .ES = func }, CMD_ES, 0 },
#define CMD1(key, key_alt, name, func, val) \
{ key, key_alt, name "\0" "v", { .ESi = func }, CMD_ESi, val },
#define CMD_DEF_END \
{ 0, 0, NULL, { NULL }, CMD_void, 0 }
void qe_register_mode(ModeDef *m);
void mode_completion(CompleteState *cp);
void qe_register_cmd_table(CmdDef *cmds, ModeDef *m);
int qe_register_binding(int key, const char *cmd_name, ModeDef *m);
CmdDef *qe_find_cmd(const char *cmd_name);
int qe_get_prototype(CmdDef *d, char *buf, int size);
/* text display system */
typedef struct TextFragment {
unsigned short embedding_level;
short width; /* fragment width */
short ascent;
short descent;
short style; /* style index */
short line_index; /* index in line_buf */
short len; /* number of glyphs */
short dummy; /* align, must be assigned for CRC */
} TextFragment;
#define MAX_WORD_SIZE 128
#define NO_CURSOR 0x7fffffff
#define STYLE_BITS 12
#define STYLE_SHIFT (32 - STYLE_BITS)
#define STYLE_MASK (((1 << STYLE_BITS) - 1) << STYLE_SHIFT)
#define CHAR_MASK ((1 << STYLE_SHIFT) - 1)
struct DisplayState {
int do_disp; /* true if real display */
int width; /* display window width */
int height; /* display window height */
int eol_width; /* width of eol char */
int default_line_height; /* line height if no chars */
int space_width; /* width of space character */
int tab_width; /* width of tabulation */
int x_disp; /* starting x display */
int x; /* current x position */
int y; /* current y position */
int line_num; /* current text line number */
int cur_hex_mode; /* true if current char is in hex mode */
int hex_mode; /* hex mode from edit_state, -1 if all chars wanted */
void *cursor_opaque;
int (*cursor_func)(struct DisplayState *,
int offset1, int offset2, int line_num,
int x, int y, int w, int h, int hex_mode);
int eod; /* end of display requested */
/* if base == RTL, then all x are equivalent to width - x */
DirType base;
int embedding_level_max;
int wrap;
int eol_reached;
EditState *edit_state;
int style; /* css display style */
/* fragment buffers */
TextFragment fragments[MAX_SCREEN_WIDTH];
int nb_fragments;
int last_word_space; /* true if last word was a space */
int word_index; /* fragment index of the start of the current word */
/* line char (in fact glyph) buffer */
unsigned int line_chars[MAX_SCREEN_WIDTH];
short line_char_widths[MAX_SCREEN_WIDTH];
int line_offsets[MAX_SCREEN_WIDTH][2];
unsigned char line_hex_mode[MAX_SCREEN_WIDTH];
int line_index;
/* fragment temporary buffer */
unsigned int fragment_chars[MAX_WORD_SIZE];
int fragment_offsets[MAX_WORD_SIZE][2];
unsigned char fragment_hex_mode[MAX_WORD_SIZE];
int fragment_index;
int last_space;
int last_style;
int last_embedding_level;
};
enum DisplayType {
DISP_CURSOR,
DISP_PRINT,
DISP_CURSOR_SCREEN,
};
void display_init(DisplayState *s, EditState *e, enum DisplayType do_disp);
void display_bol(DisplayState *s);
void display_setcursor(DisplayState *s, DirType dir);
int display_char_bidir(DisplayState *s, int offset1, int offset2,
int embedding_level, int ch);
void display_eol(DisplayState *s, int offset1, int offset2);
void display_printf(DisplayState *ds, int offset1, int offset2,
const char *fmt, ...) __attr_printf(4,5);
void display_printhex(DisplayState *s, int offset1, int offset2,
unsigned int h, int n);
static inline int display_char(DisplayState *s, int offset1, int offset2,
int ch)
{
return display_char_bidir(s, offset1, offset2, 0, ch);
}
static inline void set_color(unsigned int *p, const unsigned int *to, int style) {
style <<= STYLE_SHIFT;
while (p < to)
*p++ |= style;
}
static inline void set_color1(unsigned int *p, int style) {
*p |= style << STYLE_SHIFT;
}
static inline void clear_color(unsigned int *p, int count) {
int i;
for (i = 0; i < count; i++)
p[i] &= ~STYLE_MASK;
}
/* input.c */
#define INPUTMETHOD_NOMATCH (-1)
#define INPUTMETHOD_MORECHARS (-2)
typedef struct InputMethod {
const char *name;
/* input match returns:
n > 0: number of code points in replacement found for a sequence
of keystrokes in buf. number of keystrokes in match was stored
in '*match_len_ptr'.
INPUTMETHOD_NOMATCH if no match was found
INPUTMETHOD_MORECHARS if more chars need to be typed to find
a suitable completion
*/
int (*input_match)(int *match_buf, int match_buf_size,
int *match_len_ptr, const u8 *data,
const unsigned int *buf, int len);
const u8 *data;
struct InputMethod *next;
} InputMethod;
void register_input_method(InputMethod *m);
void do_set_input_method(EditState *s, const char *method);
void do_switch_input_method(EditState *s);
void init_input_methods(void);
int load_input_methods(void);
void unload_input_methods(void);
/* the following will be suppressed */
#define LINE_MAX_SIZE 256
static inline int align(int a, int n) {
return (a / n) * n;
}
static inline int scale(int a, int b, int c) {
return (a * b + c / 2) / c;
}
/* minibuffer & status */
void less_mode_init(void);
void minibuffer_init(void);
extern CmdDef minibuffer_commands[];
extern CmdDef less_commands[];
typedef void (*CompletionFunc)(CompleteState *cp);
typedef struct CompletionEntry {
const char *name;
CompletionFunc completion_func;
struct CompletionEntry *next;
} CompletionEntry;
void complete_test(CompleteState *cp, const char *str);
void register_completion(const char *name, CompletionFunc completion_func);
void put_status(EditState *s, const char *fmt, ...) __attr_printf(2,3);
void put_error(EditState *s, const char *fmt, ...) __attr_printf(2,3);
void minibuffer_edit(const char *input, const char *prompt,
StringArray *hist, CompletionFunc completion_func,
void (*cb)(void *opaque, char *buf), void *opaque);
void command_completion(CompleteState *cp);
void file_completion(CompleteState *cp);
void buffer_completion(CompleteState *cp);
#ifdef CONFIG_WIN32
static inline int is_user_input_pending(void) {
return 0;
}
#else
extern int __fast_test_event_poll_flag;
int __is_user_input_pending(void);
static inline int is_user_input_pending(void) {
if (__fast_test_event_poll_flag) {
__fast_test_event_poll_flag = 0;
return __is_user_input_pending();
} else {
return 0;
}
}
#endif
/* config file support */
void do_load_config_file(EditState *e, const char *file);
void do_load_qerc(EditState *e, const char *file);
/* popup / low level window handling */
void show_popup(EditBuffer *b);
int check_read_only(EditState *s);
EditState *insert_window_left(EditBuffer *b, int width, int flags);
EditState *find_window(EditState *s, int key);
void do_find_window(EditState *s, int key);
/* window handling */
void edit_close(EditState **sp);
EditState *edit_new(EditBuffer *b,
int x1, int y1, int width, int height, int flags);
void edit_detach(EditState *s);
EditState *check_window(EditState **sp);
EditState *edit_find(EditBuffer *b);
void do_refresh(EditState *s);
// should take direction argument
void do_other_window(EditState *s);
void do_previous_window(EditState *s);
void do_delete_window(EditState *s, int force);
// should take argval
void do_split_window(EditState *s, int horiz);
void edit_display(QEmacsState *qs);
void edit_invalidate(EditState *s);
void display_mode_line(EditState *s);
void edit_set_mode(EditState *s, ModeDef *m);
/* loading files */
void do_exit_qemacs(EditState *s, int argval);
void do_find_file(EditState *s, const char *filename);
void do_load_from_path(EditState *s, const char *filename);
void do_find_file_other_window(EditState *s, const char *filename);
void do_switch_to_buffer(EditState *s, const char *bufname);
void do_break(EditState *s);
void do_insert_file(EditState *s, const char *filename);
// should take argument?
void do_save_buffer(EditState *s);
void do_write_file(EditState *s, const char *filename);
void do_write_region(EditState *s, const char *filename);
// should take argument?
void do_isearch(EditState *s, int dir);
void do_query_replace(EditState *s, const char *search_str,
const char *replace_str);
void do_replace_string(EditState *s, const char *search_str,
const char *replace_str, int argval);
void do_search_string(EditState *s, const char *search_str, int dir);
void do_refresh_complete(EditState *s);
void do_kill_buffer(EditState *s, const char *bufname1);
void switch_to_buffer(EditState *s, EditBuffer *b);
/* text mode */
extern ModeDef text_mode;
int text_mode_init(EditState *s, ModeSavedData *saved_data);
void text_mode_close(EditState *s);
int text_backward_offset(EditState *s, int offset);
int text_display(EditState *s, DisplayState *ds, int offset);
void set_colorize_func(EditState *s, ColorizeFunc colorize_func);
int generic_get_colorized_line(EditState *s, unsigned int *buf, int buf_size,
int *offsetp, int line_num);
int get_non_colorized_line(EditState *s, unsigned int *buf, int buf_size,
int *offsetp, int line_num);
void do_char(EditState *s, int key, int argval);
void do_combine_char(EditState *s, int accent);
void do_set_mode(EditState *s, const char *name);
void text_move_left_right_visual(EditState *s, int dir);
void text_move_word_left_right(EditState *s, int dir);
void text_move_up_down(EditState *s, int dir);
void text_scroll_up_down(EditState *s, int dir);
void text_write_char(EditState *s, int key);
void do_return(EditState *s, int move);
void do_backspace(EditState *s, int argval);
void do_delete_char(EditState *s, int argval);
void do_tab(EditState *s, int argval);
EditBuffer *new_yank_buffer(QEmacsState *qs, EditBuffer *base);
void do_append_next_kill(EditState *s);
void do_kill(EditState *s, int p1, int p2, int dir);
void do_kill_region(EditState *s, int killtype);
void do_kill_line(EditState *s, int dir);
void do_kill_word(EditState *s, int dir);
void text_move_bol(EditState *s);
void text_move_eol(EditState *s);
void word_right(EditState *s, int w);
void word_left(EditState *s, int w);
void do_goto(EditState *s, const char *str, int unit);
void do_goto_line(EditState *s, int line);
void do_up_down(EditState *s, int dir);
void do_left_right(EditState *s, int dir);
void text_mouse_goto(EditState *s, int x, int y);
void basic_mode_line(EditState *s, buf_t *out, int c1);
void text_mode_line(EditState *s, buf_t *out);
void do_toggle_full_screen(EditState *s);
void do_toggle_control_h(EditState *s, int set);
/* misc */
void do_set_emulation(EditState *s, const char *name);
void do_set_trace(EditState *s);
void do_cd(EditState *s, const char *name);
void do_set_key(EditState *s, const char *keystr, const char *cmd_name, int local);
//void do_unset_key(EditState *s, const char *keystr, int local);
void do_bof(EditState *s);
void do_eof(EditState *s);
void do_bol(EditState *s);
void do_eol(EditState *s);
void do_word_right(EditState *s, int dir);
void do_mark_region(EditState *s, int mark, int offset);
int eb_next_paragraph(EditBuffer *b, int offset);
int eb_start_paragraph(EditBuffer *b, int offset);
void do_mark_paragraph(EditState *s);
void do_backward_paragraph(EditState *s);
void do_forward_paragraph(EditState *s);
void do_kill_paragraph(EditState *s, int dir);
void do_fill_paragraph(EditState *s);
void do_changecase_word(EditState *s, int up);
void do_changecase_region(EditState *s, int up);
void do_delete_word(EditState *s, int dir);
int cursor_func(DisplayState *ds,
int offset1, int offset2, int line_num,
int x, int y, int w, int h, int hex_mode);
// should take argval
void do_scroll_up_down(EditState *s, int dir);
void perform_scroll_up_down(EditState *s, int h);
void do_center_cursor(EditState *s);
void do_quote(EditState *s, int argval);
void do_overwrite_mode(EditState *s, int argval);
// should take argval
void do_set_mark(EditState *s);
void do_mark_whole_buffer(EditState *s);
void do_yank(EditState *s);
void do_yank_pop(EditState *s);
void do_exchange_point_and_mark(EditState *s);
QECharset *read_charset(EditState *s, const char *charset_str);
void do_set_buffer_file_coding_system(EditState *s, const char *charset_str);
void do_convert_buffer_file_coding_system(EditState *s,
const char *charset_str);
void do_toggle_bidir(EditState *s);
void do_toggle_line_numbers(EditState *s);
void do_toggle_truncate_lines(EditState *s);
void do_word_wrap(EditState *s);
void do_count_lines(EditState *s);
void do_what_cursor_position(EditState *s);
void do_set_tab_width(EditState *s, int tab_width);
void do_set_indent_width(EditState *s, int indent_width);
void do_set_indent_tabs_mode(EditState *s, int val);
void display_window_borders(EditState *e);
QEStyleDef *find_style(const char *name);
void style_completion(CompleteState *cp);
void get_style(EditState *e, QEStyleDef *style, int style_index);
void style_property_completion(CompleteState *cp);
int find_style_property(const char *name);
void do_define_color(EditState *e, const char *name, const char *value);
void do_set_style(EditState *e, const char *stylestr,
const char *propstr, const char *value);
void do_set_display_size(EditState *s, int w, int h);
void do_toggle_mode_line(EditState *s);
void do_set_system_font(EditState *s, const char *qe_font_name,
const char *system_fonts);
void call_func(CmdSig sig, CmdProto func, int nb_args, CmdArg *args,
unsigned char *args_type);
int parse_arg(const char **pp, unsigned char *argtype,
char *prompt, int prompt_size,
char *completion, int completion_size,
char *history, int history_size);
void exec_command(EditState *s, CmdDef *d, int argval, int key);
void do_execute_command(EditState *s, const char *cmd, int argval);
void window_display(EditState *s);
void do_numeric_argument(EditState *s);
void do_start_macro(EditState *s);
void do_end_macro(EditState *s);
void do_call_macro(EditState *s);
void do_execute_macro_keys(EditState *s, const char *keys);
void do_define_kbd_macro(EditState *s, const char *name, const char *keys,
const char *key_bind);
void edit_attach(EditState *s, EditState **ep);
void do_completion(EditState *s);
void do_completion_space(EditState *s);
void do_electric_filename(EditState *s, int key);
void minibuf_complete_scroll_up_down(EditState *s, int dir);
void do_history(EditState *s, int dir);
void do_minibuffer_get_binary(EditState *s);
void do_minibuffer_exit(EditState *s, int fabort);
void do_less_exit(EditState *s);
void do_toggle_read_only(EditState *s);
void do_not_modified(EditState *s, int argval);
void do_find_alternate_file(EditState *s, const char *filename);
void do_load_file_from_path(EditState *s, const char *filename);
void do_set_visited_file_name(EditState *s, const char *filename,
const char *renamefile);
int eb_search(EditBuffer *b, int offset, int dir, int flags,
const char *buf, int size,
CSSAbortFunc *abort_func, void *abort_opaque,
int *found_start, int *found_end);
int search_abort_func(void *opaque);
void do_doctor(EditState *s);
void do_delete_other_windows(EditState *s);
void do_describe_key_briefly(EditState *s);
void do_show_bindings(EditState *s, const char *cmd_name);
void do_apropos(EditState *s, const char *str);
EditBuffer *new_help_buffer(int *show_ptr);
void do_describe_bindings(EditState *s);
void do_help_for_help(EditState *s);
void qe_event_init(void);
void window_get_min_size(EditState *s, int *w_ptr, int *h_ptr);
void window_resize(EditState *s, int target_w, int target_h);
void wheel_scroll_up_down(EditState *s, int dir);
void qe_mouse_event(QEEvent *ev);
int parse_config_file(EditState *s, const char *filename);
int parse_command_line(int argc, char **argv);
void set_user_option(const char *user);
void set_tty_charset(const char *name);
/* parser.c */
int parse_config_file(EditState *s, const char *filename);
void do_eval_expression(EditState *s, const char *expression);
void do_eval_region(EditState *s);
void do_eval_buffer(EditState *s);
/* extras.c */
void do_compare_windows(EditState *s, int argval);
void do_delete_horizontal_space(EditState *s);
void do_show_date_and_time(EditState *s, int argval);
/* hex.c */
extern ModeDef hex_mode;
void hex_write_char(EditState *s, int key);
/* lisp.c */
extern ModeDef lisp_mode;
/* list.c */
extern ModeDef list_mode;
void list_toggle_selection(EditState *s);
int list_get_pos(EditState *s);
int list_get_offset(EditState *s);
/* dired.c */
void do_dired(EditState *s);
/* c_mode.c */
void c_colorize_line(unsigned int *buf, int len,
int *colorize_state_ptr, int state_only);
/* xml.c */
extern ModeDef xml_mode;
/* html.c */
extern ModeDef html_mode;
int gxml_mode_init(EditState *s,
ModeSavedData *saved_data,
int is_html, const char *default_stylesheet);
/* image.c */
void fill_border(EditState *s, int x, int y, int w, int h, int color);
int qe_bitmap_format_to_pix_fmt(int format);
/* shell.c */
const char *get_shell(void);
#define SF_INTERACTIVE 0x01
#define SF_COLOR 0x02
#define SF_INFINITE 0x04
EditBuffer *new_shell_buffer(EditBuffer *b0, const char *bufname,
const char *caption, const char *cmd,
int shell_flags);
#define QASSERT(e) do { if (!(e)) fprintf(stderr, "%s:%d: assertion failed: %s\n", __FILE__, __LINE__, #e); } while (0)
#endif
Reference in a new issue View git blame Copy permalink