1 /*- 2 * Copyright (c) 1993, 1994 3 * The Regents of the University of California. All rights reserved. 4 * Copyright (c) 1993, 1994, 1995, 1996 5 * Keith Bostic. All rights reserved. 6 * 7 * See the LICENSE file for redistribution information. 8 * 9 * @(#)msg.h 10.10 (Berkeley) 5/10/96 10 */ 11 12 /* 13 * Common messages (continuation or confirmation). 14 */ 15 typedef enum { 16 CMSG_CONF, CMSG_CONT, CMSG_CONT_EX, 17 CMSG_CONT_R, CMSG_CONT_S, CMSG_CONT_Q } cmsg_t; 18 19 /* 20 * Message types. 21 * 22 * !!! 23 * In historical vi, O_VERBOSE didn't exist, and O_TERSE made the error 24 * messages shorter. In this implementation, O_TERSE has no effect and 25 * O_VERBOSE results in informational displays about common errors, for 26 * naive users. 27 * 28 * M_NONE Display to the user, no reformatting, no nothing. 29 * 30 * M_BERR Error: M_ERR if O_VERBOSE, else bell. 31 * M_ERR Error: Display in inverse video. 32 * M_INFO Info: Display in normal video. 33 * M_SYSERR Error: M_ERR, using strerror(3) message. 34 * M_VINFO Info: M_INFO if O_VERBOSE, else ignore. 35 * 36 * The underlying message display routines only need to know about M_NONE, 37 * M_ERR and M_INFO -- all the other message types are converted into one 38 * of them by the message routines. 39 */ 40 typedef enum { 41 M_NONE = 1, M_BERR, M_ERR, M_INFO, M_SYSERR, M_VINFO } mtype_t; 42 43 /* 44 * There are major problems with error messages being generated by routines 45 * preparing the screen to display error messages. It's possible for the 46 * editor to generate messages before we have a screen in which to display 47 * them, or during the transition between ex (and vi startup) and a true vi. 48 * There's a queue in the global area to hold them. 49 * 50 * If SC_EX/SC_VI is set, that's the mode that the editor is in. If the flag 51 * S_SCREEN_READY is set, that means that the screen is prepared to display 52 * messages. 53 */ 54 typedef struct _msgh MSGH; /* MSGS list head structure. */ 55 SLIST_HEAD(_msgh, _msg); 56 struct _msg { 57 SLIST_ENTRY(_msg) q; /* Linked list of messages. */ 58 mtype_t mtype; /* Message type: M_NONE, M_ERR, M_INFO. */ 59 char *buf; /* Message buffer. */ 60 size_t len; /* Message length. */ 61 }; 62 63 /* Flags to msgq_status(). */ 64 #define MSTAT_SHOWLAST 0x01 /* Show the line number of the last line. */ 65 #define MSTAT_TRUNCATE 0x02 /* Truncate the file name if it's too long. */ 66