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Diffstat (limited to 'contrib/nvi/common/msg.h')
| -rw-r--r-- | contrib/nvi/common/msg.h | 65 |
1 files changed, 65 insertions, 0 deletions
diff --git a/contrib/nvi/common/msg.h b/contrib/nvi/common/msg.h new file mode 100644 index 0000000..b10f4cc --- /dev/null +++ b/contrib/nvi/common/msg.h @@ -0,0 +1,65 @@ +/*- + * Copyright (c) 1993, 1994 + * The Regents of the University of California. All rights reserved. + * Copyright (c) 1993, 1994, 1995, 1996 + * Keith Bostic. All rights reserved. + * + * See the LICENSE file for redistribution information. + * + * @(#)msg.h 10.10 (Berkeley) 5/10/96 + */ + +/* + * Common messages (continuation or confirmation). + */ +typedef enum { + CMSG_CONF, CMSG_CONT, CMSG_CONT_EX, + CMSG_CONT_R, CMSG_CONT_S, CMSG_CONT_Q } cmsg_t; + +/* + * Message types. + * + * !!! + * In historical vi, O_VERBOSE didn't exist, and O_TERSE made the error + * messages shorter. In this implementation, O_TERSE has no effect and + * O_VERBOSE results in informational displays about common errors, for + * naive users. + * + * M_NONE Display to the user, no reformatting, no nothing. + * + * M_BERR Error: M_ERR if O_VERBOSE, else bell. + * M_ERR Error: Display in inverse video. + * M_INFO Info: Display in normal video. + * M_SYSERR Error: M_ERR, using strerror(3) message. + * M_VINFO Info: M_INFO if O_VERBOSE, else ignore. + * + * The underlying message display routines only need to know about M_NONE, + * M_ERR and M_INFO -- all the other message types are converted into one + * of them by the message routines. + */ +typedef enum { + M_NONE = 1, M_BERR, M_ERR, M_INFO, M_SYSERR, M_VINFO } mtype_t; + +/* + * There are major problems with error messages being generated by routines + * preparing the screen to display error messages. It's possible for the + * editor to generate messages before we have a screen in which to display + * them, or during the transition between ex (and vi startup) and a true vi. + * There's a queue in the global area to hold them. + * + * If SC_EX/SC_VI is set, that's the mode that the editor is in. If the flag + * S_SCREEN_READY is set, that means that the screen is prepared to display + * messages. + */ +typedef struct _msgh MSGH; /* MSGS list head structure. */ +LIST_HEAD(_msgh, _msg); +struct _msg { + LIST_ENTRY(_msg) q; /* Linked list of messages. */ + mtype_t mtype; /* Message type: M_NONE, M_ERR, M_INFO. */ + char *buf; /* Message buffer. */ + size_t len; /* Message length. */ +}; + +/* Flags to msgq_status(). */ +#define MSTAT_SHOWLAST 0x01 /* Show the line number of the last line. */ +#define MSTAT_TRUNCATE 0x02 /* Truncate the file name if it's too long. */ |
