mirror of
https://github.com/rfivet/uemacs.git
synced 2024-12-18 07:16:23 -05:00
84 lines
3.2 KiB
C
84 lines
3.2 KiB
C
#ifndef _BUFFER_H_
|
|
#define _BUFFER_H_
|
|
|
|
#include "crypt.h"
|
|
#include "line.h"
|
|
|
|
#define NFILEN 80 /* # of bytes, file name */
|
|
#define NBUFN 16 /* # of bytes, buffer name */
|
|
#define NPAT 128 /* # of bytes, pattern */
|
|
|
|
/*
|
|
* Text is kept in buffers. A buffer header, described below, exists for every
|
|
* buffer in the system. The buffers are kept in a big list, so that commands
|
|
* that search for a buffer by name can find the buffer header. There is a
|
|
* safe store for the dot and mark in the header, but this is only valid if
|
|
* the buffer is not being displayed (that is, if "b_nwnd" is 0). The text for
|
|
* the buffer is kept in a circularly linked list of lines, with a pointer to
|
|
* the header line in "b_linep".
|
|
* Buffers may be "Inactive" which means the files associated with them
|
|
* have not been read in yet. These get read in at "use buffer" time.
|
|
*/
|
|
struct buffer {
|
|
struct buffer *b_bufp; /* Link to next struct buffer */
|
|
struct line *b_dotp; /* Link to "." struct line structure */
|
|
struct line *b_markp; /* The same as the above two, */
|
|
struct line *b_linep; /* Link to the header struct line */
|
|
int b_doto; /* Offset of "." in above struct line */
|
|
int b_marko; /* but for the "mark" */
|
|
int b_mode; /* editor mode of this buffer */
|
|
char b_active; /* window activated flag */
|
|
char b_nwnd; /* Count of windows on buffer */
|
|
char b_flag; /* Flags */
|
|
char b_fname[NFILEN]; /* File name */
|
|
char b_bname[NBUFN]; /* Buffer name */
|
|
#if CRYPT
|
|
char b_key[NPAT]; /* current encrypted key */
|
|
#endif
|
|
};
|
|
|
|
extern struct buffer *curbp ; /* Current buffer */
|
|
extern struct buffer *bheadp ; /* Head of list of buffers */
|
|
extern struct buffer *blistp ; /* Buffer for C-X C-B */
|
|
|
|
#define BFINVS 0x01 /* Internal invisable buffer */
|
|
#define BFCHG 0x02 /* Changed since last write */
|
|
#define BFTRUNC 0x04 /* buffer was truncated when read */
|
|
|
|
/* mode flags */
|
|
#define NUMMODES 11 /* # of defined modes */
|
|
|
|
#define MDWRAP 0x0001 /* word wrap */
|
|
#define MDCMOD 0x0002 /* C indentation and fence match */
|
|
#define MDSPELL 0x0004 /* spell error parcing */
|
|
#define MDEXACT 0x0008 /* Exact matching for searches */
|
|
#define MDVIEW 0x0010 /* read-only buffer */
|
|
#define MDOVER 0x0020 /* overwrite mode */
|
|
#define MDMAGIC 0x0040 /* regular expresions in search */
|
|
#if CRYPT
|
|
#define MDCRYPT 0x0080 /* encrytion mode active */
|
|
#endif
|
|
#define MDASAVE 0x0100 /* auto-save mode */
|
|
#define MDUTF8 0x0200 /* utf8 mode */
|
|
#define MDDOS 0x0400 /* CRLF eol mode */
|
|
|
|
|
|
extern const char *modename[] ; /* text names of modes */
|
|
extern int gmode ; /* global editor mode */
|
|
|
|
|
|
int usebuffer( int f, int n) ;
|
|
int nextbuffer( int f, int n) ;
|
|
int swbuffer( struct buffer *bp) ;
|
|
int killbuffer( int f, int n) ;
|
|
int zotbuf( struct buffer *bp) ;
|
|
int namebuffer( int f, int n) ;
|
|
int listbuffers( int f, int n) ;
|
|
int anycb( void) ;
|
|
int bclear( struct buffer *bp) ;
|
|
int unmark( int f, int n) ;
|
|
/* Lookup a buffer by name. */
|
|
struct buffer *bfind( const char *bname, int cflag, int bflag) ;
|
|
|
|
#endif
|