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