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/*-
* Copyright (c) 1996
* Keith Bostic. All rights reserved.
*
* See the LICENSE file for redistribution information.
*
* @(#)ip.h 8.3 (Berkeley) 10/13/96
*/
typedef struct _ip_private {
int i_fd; /* Input file descriptor. */
int o_fd; /* Output file descriptor. */
size_t row; /* Current row. */
size_t col; /* Current column. */
size_t iblen; /* Input buffer length. */
size_t iskip; /* Returned input buffer. */
char ibuf[256]; /* Input buffer. */
#define IP_SCR_VI_INIT 0x0001 /* Vi screen initialized. */
u_int32_t flags;
} IP_PRIVATE;
#define IPP(sp) ((IP_PRIVATE *)((sp)->gp->ip_private))
#define GIPP(gp) ((IP_PRIVATE *)((gp)->ip_private))
/* The screen line relative to a specific window. */
#define RLNO(sp, lno) (sp)->woff + (lno)
/*
* The IP protocol consists of frames, each containing:
*
* <IPO_><object>
*
* XXX
* We should have a marking byte, 0xaa to delimit frames.
*
*/
#define IPO_CODE 1 /* An event specification. */
#define IPO_INT 2 /* 4-byte, network order integer. */
#define IPO_STR 3 /* IPO_INT: followed by N bytes. */
#define IPO_CODE_LEN 1
#define IPO_INT_LEN 4
/* A structure that can hold the information for any frame. */
typedef struct _ip_buf {
int code; /* Event code. */
const char *str; /* String. */
size_t len; /* String length. */
u_int32_t val1; /* First value. */
u_int32_t val2; /* Second value. */
} IP_BUF;
/*
* Screen/editor IP_CODE's.
*
* The program structure depends on the event loop being able to return
* IPO_EOF/IPOE_ERR multiple times -- eventually enough things will end
* due to the events that vi will reach the command level for the screen,
* at which point the exit flags will be set and vi will exit.
*
* IP events sent from the screen to vi.
*/
#define IPO_EOF 1 /* End of input (NOT ^D). */
#define IPO_ERR 2 /* Input error. */
#define IPO_INTERRUPT 3 /* Interrupt. */
#define IPO_QUIT 4 /* Quit. */
#define IPO_RESIZE 5 /* Screen resize: IPO_INT, IPO_INT. */
#define IPO_SIGHUP 6 /* SIGHUP. */
#define IPO_SIGTERM 7 /* SIGTERM. */
#define IPO_STRING 8 /* Input string: IPO_STR. */
#define IPO_WRITE 9 /* Write. */
/*
* IP events sent from vi to the screen.
*/
#define IPO_ADDSTR 1 /* Add a string: IPO_STR. */
#define IPO_ATTRIBUTE 2 /* Set screen attribute: IPO_INT, IPO_INT. */
#define IPO_BELL 3 /* Beep/bell/flash the terminal. */
#define IPO_BUSY 4 /* Display a busy message: IPO_STR. */
#define IPO_CLRTOEOL 5 /* Clear to the end of the line. */
#define IPO_DELETELN 6 /* Delete a line. */
#define IPO_INSERTLN 7 /* Insert a line. */
#define IPO_MOVE 8 /* Move the cursor: IPO_INT, IPO_INT. */
#define IPO_REDRAW 9 /* Redraw the screen. */
#define IPO_REFRESH 10 /* Refresh the screen. */
#define IPO_RENAME 11 /* Rename the screen: IPO_STR. */
#define IPO_REWRITE 12 /* Rewrite a line: IPO_INT. */
#include "ip_extern.h"
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