/* $OpenBSD: gs.h,v 1.18 2016/05/27 09:18:11 martijn Exp $ */ /*- * 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. * * @(#)gs.h 10.34 (Berkeley) 9/24/96 */ #define TEMPORARY_FILE_STRING "/tmp" /* Default temporary file name. */ /* * File reference structure (FREF). The structure contains the name of the * file, along with the information that follows the name. * * !!! * The read-only bit follows the file name, not the file itself. */ struct _fref { TAILQ_ENTRY(_fref) q; /* Linked list of file references. */ char *name; /* File name. */ char *tname; /* Backing temporary file name. */ recno_t lno; /* 1-N: file cursor line. */ size_t cno; /* 0-N: file cursor column. */ #define FR_CURSORSET 0x0001 /* If lno/cno values valid. */ #define FR_DONTDELETE 0x0002 /* Don't delete the temporary file. */ #define FR_EXNAMED 0x0004 /* Read/write renamed the file. */ #define FR_NAMECHANGE 0x0008 /* If the name changed. */ #define FR_NEWFILE 0x0010 /* File doesn't really exist yet. */ #define FR_RECOVER 0x0020 /* File is being recovered. */ #define FR_TMPEXIT 0x0040 /* Modified temporary file, no exit. */ #define FR_TMPFILE 0x0080 /* If file has no name. */ #define FR_UNLOCKED 0x0100 /* File couldn't be locked. */ u_int16_t flags; }; /* Action arguments to scr_exadjust(). */ typedef enum { EX_TERM_CE, EX_TERM_SCROLL } exadj_t; /* Screen attribute arguments to scr_attr(). */ typedef enum { SA_ALTERNATE, SA_INVERSE } scr_attr_t; /* Key type arguments to scr_keyval(). */ typedef enum { KEY_VEOF, KEY_VERASE, KEY_VKILL, KEY_VWERASE } scr_keyval_t; /* * GS: * * Structure that describes global state of the running program. */ struct _gs { int id; /* Last allocated screen id. */ TAILQ_HEAD(_dqh, _scr) dq; /* Displayed screens. */ TAILQ_HEAD(_hqh, _scr) hq; /* Hidden screens. */ SCR *ccl_sp; /* Colon command-line screen. */ void *cl_private; /* Curses support private area. */ /* File references. */ TAILQ_HEAD(_frefh, _fref) frefq; #define GO_COLUMNS 0 /* Global options: columns. */ #define GO_LINES 1 /* Global options: lines. */ #define GO_SECURE 2 /* Global options: secure. */ #define GO_TERM 3 /* Global options: terminal type. */ OPTION opts[GO_TERM + 1]; MSGH msgq; /* User message list. */ #define DEFAULT_NOPRINT '\1' /* Emergency non-printable character. */ CHAR_T noprint; /* Cached, unprintable character. */ char *tmp_bp; /* Temporary buffer. */ size_t tmp_blen; /* Temporary buffer size. */ /* * Ex command structures (EXCMD). Defined here because ex commands * exist outside of any particular screen or file. */ #define EXCMD_RUNNING(gp) (LIST_FIRST(&(gp)->ecq)->clen != 0) LIST_HEAD(_excmdh, _excmd) ecq; /* Ex command linked list. */ EXCMD excmd; /* Default ex command structure. */ char *if_name; /* Current associated file. */ recno_t if_lno; /* Current associated line number. */ char *c_option; /* Ex initial, command-line command. */ #ifdef DEBUG FILE *tracefp; /* Trace file pointer. */ #endif EVENT *i_event; /* Array of input events. */ size_t i_nelem; /* Number of array elements. */ size_t i_cnt; /* Count of events. */ size_t i_next; /* Offset of next event. */ CB *dcbp; /* Default cut buffer pointer. */ CB dcb_store; /* Default cut buffer storage. */ LIST_HEAD(_cuth, _cb) cutq; /* Linked list of cut buffers. */ #define MAX_BIT_SEQ 128 /* Max + 1 fast check character. */ LIST_HEAD(_seqh, _seq) seqq; /* Linked list of maps, abbrevs. */ bitstr_t bit_decl(seqb, MAX_BIT_SEQ); #define MAX_FAST_KEY 254 /* Max fast check character.*/ #define KEY_LEN(sp, ch) \ ((unsigned char)(ch) <= MAX_FAST_KEY ? \ (sp)->gp->cname[(unsigned char)(ch)].len : \ v_key_len((sp), (ch))) #define KEY_NAME(sp, ch) \ ((unsigned char)(ch) <= MAX_FAST_KEY ? \ (sp)->gp->cname[(unsigned char)(ch)].name : \ v_key_name((sp), (ch))) struct { CHAR_T name[MAX_CHARACTER_COLUMNS + 1]; u_int8_t len; } cname[MAX_FAST_KEY + 1]; /* Fast lookup table. */ #define KEY_VAL(sp, ch) \ ((unsigned char)(ch) <= MAX_FAST_KEY ? \ (sp)->gp->special_key[(unsigned char)(ch)] : \ (unsigned char)(ch) > (sp)->gp->max_special ? 0 : \ v_key_val((sp),(ch))) CHAR_T max_special; /* Max special character. */ u_char /* Fast lookup table. */ special_key[MAX_FAST_KEY + 1]; /* Flags. */ #define G_ABBREV 0x0001 /* If have abbreviations. */ #define G_BELLSCHED 0x0002 /* Bell scheduled. */ #define G_INTERRUPTED 0x0004 /* Interrupted. */ #define G_RECOVER_SET 0x0008 /* Recover system initialized. */ #define G_SCRIPTED 0x0010 /* Ex script session. */ #define G_SCRWIN 0x0020 /* Scripting windows running. */ #define G_SNAPSHOT 0x0040 /* Always snapshot files. */ #define G_SRESTART 0x0080 /* Screen restarted. */ #define G_TMP_INUSE 0x0100 /* Temporary buffer in use. */ u_int32_t flags; /* Screen interface functions. */ /* Add a string to the screen. */ int (*scr_addstr)(SCR *, const char *, size_t); /* Toggle a screen attribute. */ int (*scr_attr)(SCR *, scr_attr_t, int); /* Terminal baud rate. */ int (*scr_baud)(SCR *, u_long *); /* Beep/bell/flash the terminal. */ int (*scr_bell)(SCR *); /* Display a busy message. */ void (*scr_busy)(SCR *, const char *, busy_t); /* Clear to the end of the line. */ int (*scr_clrtoeol)(SCR *); /* Return the cursor location. */ int (*scr_cursor)(SCR *, size_t *, size_t *); /* Delete a line. */ int (*scr_deleteln)(SCR *); /* Get a keyboard event. */ int (*scr_event)(SCR *, EVENT *, u_int32_t, int); /* Ex: screen adjustment routine. */ int (*scr_ex_adjust)(SCR *, exadj_t); int (*scr_fmap) /* Set a function key. */ (SCR *, seq_t, CHAR_T *, size_t, CHAR_T *, size_t); /* Get terminal key value. */ int (*scr_keyval)(SCR *, scr_keyval_t, CHAR_T *, int *); /* Insert a line. */ int (*scr_insertln)(SCR *); /* Handle an option change. */ int (*scr_optchange)(SCR *, int, char *, u_long *); /* Move the cursor. */ int (*scr_move)(SCR *, size_t, size_t); /* Message or ex output. */ void (*scr_msg)(SCR *, mtype_t, char *, size_t); /* Refresh the screen. */ int (*scr_refresh)(SCR *, int); /* Rename the file. */ int (*scr_rename)(SCR *, char *, int); /* Set the screen type. */ int (*scr_screen)(SCR *, u_int32_t); /* Suspend the editor. */ int (*scr_suspend)(SCR *, int *); /* Print usage message. */ void (*scr_usage)(void); };
