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