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/*
* zle.h - header file for line editor
*
* This file is part of zsh, the Z shell.
*
* Copyright (c) 1992-1997 Paul Falstad
* All rights reserved.
*
* Permission is hereby granted, without written agreement and without
* license or royalty fees, to use, copy, modify, and distribute this
* software and to distribute modified versions of this software for any
* purpose, provided that the above copyright notice and the following
* two paragraphs appear in all copies of this software.
*
* In no event shall Paul Falstad or the Zsh Development Group be liable
* to any party for direct, indirect, special, incidental, or consequential
* damages arising out of the use of this software and its documentation,
* even if Paul Falstad and the Zsh Development Group have been advised of
* the possibility of such damage.
*
* Paul Falstad and the Zsh Development Group specifically disclaim any
* warranties, including, but not limited to, the implied warranties of
* merchantability and fitness for a particular purpose. The software
* provided hereunder is on an "as is" basis, and Paul Falstad and the
* Zsh Development Group have no obligation to provide maintenance,
* support, updates, enhancements, or modifications.
*
*/
#undef trashzle
#undef zleread
#undef spaceinline
#undef gotword
#undef zrefresh
typedef struct widget *Widget;
typedef struct thingy *Thingy;
/* widgets (ZLE functions) */
typedef int (*ZleIntFunc) _((char **));
struct widget {
int flags; /* flags (see below) */
Thingy first; /* `first' thingy that names this widget */
union {
ZleIntFunc fn; /* pointer to internally implemented widget */
char *fnnam; /* name of the shell function for user-defined widget */
struct {
ZleIntFunc fn; /* internal widget function to call */
char *wid; /* name of widget to call */
char *func; /* name of shell function to call */
} comp;
} u;
};
#define WIDGET_INT (1<<0) /* widget is internally implemented */
#define WIDGET_NCOMP (1<<1) /* new style completion widget */
#define ZLE_MENUCMP (1<<2) /* DON'T invalidate completion list */
#define ZLE_YANK (1<<3)
#define ZLE_LINEMOVE (1<<4) /* command is a line-oriented movement */
#define ZLE_LASTCOL (1<<5) /* command maintains lastcol correctly */
#define ZLE_KILL (1<<6)
#define ZLE_KEEPSUFFIX (1<<7) /* DON'T remove added suffix */
#define ZLE_NOTCOMMAND (1<<8) /* widget should not alter lastcmd */
#define ZLE_ISCOMP (1<<9) /* usable for new style completion */
/* thingies */
struct thingy {
HashNode next; /* next node in the hash chain */
char *nam; /* name of the thingy */
int flags; /* TH_* flags (see below) */
int rc; /* reference count */
Widget widget; /* widget named by this thingy */
Thingy samew; /* `next' thingy (circularly) naming the same widget */
};
/* DISABLED is (1<<0) */
#define TH_IMMORTAL (1<<1) /* can't refer to a different widget */
/* command modifier prefixes */
struct modifier {
int flags; /* MOD_* flags (see below) */
int mult; /* repeat count */
int tmult; /* repeat count actually being edited */
int vibuf; /* vi cut buffer */
};
#define MOD_MULT (1<<0) /* a repeat count has been selected */
#define MOD_TMULT (1<<1) /* a repeat count is being entered */
#define MOD_VIBUF (1<<2) /* a vi cut buffer has been selected */
#define MOD_VIAPP (1<<3) /* appending to the vi cut buffer */
#define MOD_NEG (1<<4) /* last command was negate argument */
/* current modifier status */
#define zmult (zmod.mult)
/* undo system */
struct change {
struct change *prev, *next; /* adjacent changes */
int flags; /* see below */
int hist; /* history line being changed */
int off; /* offset of the text changes */
char *del; /* characters to delete (metafied) */
char *ins; /* characters to insert (metafied) */
};
#define CH_NEXT (1<<0) /* next structure is also part of this change */
#define CH_PREV (1<<1) /* previous structure is also part of this change */
/* known thingies */
#define Th(X) (&thingies[X])
/* opaque keymap type */
typedef struct keymap *Keymap;
typedef void (*KeyScanFunc) _((char *, Thingy, char *, void *));
#define invicmdmode() (!strcmp(curkeymapname, "vicmd"))
/* Standard type of suffix removal. */
#define removesuffix() iremovesuffix(256, 0)
/* Cut/kill buffer type. The buffer itself is purely binary data, *
* not NUL-terminated. len is a length count. flags uses the *
* CUTBUFFER_* constants defined below. */
struct cutbuffer {
char *buf;
size_t len;
char flags;
};
typedef struct cutbuffer *Cutbuffer;
#define CUTBUFFER_LINE 1 /* for vi: buffer contains whole lines of data */
#define KRINGCT 8 /* number of buffers in the kill ring */
/* Types of completion. */
#define COMP_COMPLETE 0
#define COMP_LIST_COMPLETE 1
#define COMP_SPELL 2
#define COMP_EXPAND 3
#define COMP_EXPAND_COMPLETE 4
#define COMP_LIST_EXPAND 5
#define COMP_ISEXPAND(X) ((X) >= COMP_EXPAND)
/* Information about one brace run. */
typedef struct brinfo *Brinfo;
struct brinfo {
Brinfo next; /* next in list */
Brinfo prev; /* previous (only for closing braces) */
char *str; /* the string to insert */
int pos; /* original position */
int qpos; /* original position, with quoting */
int curpos; /* position for current match */
};
/* Convenience macros for the hooks */
#define LISTMATCHESHOOK (zlehooks + 0)
#define COMPLETEHOOK (zlehooks + 1)
#define BEFORECOMPLETEHOOK (zlehooks + 2)
#define AFTERCOMPLETEHOOK (zlehooks + 3)
#define ACCEPTCOMPHOOK (zlehooks + 4)
#define REVERSEMENUHOOK (zlehooks + 5)
#define INVALIDATELISTHOOK (zlehooks + 6)
/* complete hook data struct */
typedef struct compldat *Compldat;
struct compldat {
char *s;
int lst;
int incmd;
};
/* List completion matches. */
#define listmatches() runhookdef(LISTMATCHESHOOK, NULL)
/* Invalidate the completion list. */
#define invalidatelist() runhookdef(INVALIDATELISTHOOK, NULL)
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