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