mirror of
git://git.code.sf.net/p/zsh/code
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138 lines
4.3 KiB
C
138 lines
4.3 KiB
C
/*
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* zle.h - header file for line editor
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*
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* This file is part of zsh, the Z shell.
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*
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* Copyright (c) 1992-1997 Paul Falstad
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* All rights reserved.
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*
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* Permission is hereby granted, without written agreement and without
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* license or royalty fees, to use, copy, modify, and distribute this
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* software and to distribute modified versions of this software for any
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* purpose, provided that the above copyright notice and the following
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* two paragraphs appear in all copies of this software.
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*
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* In no event shall Paul Falstad or the Zsh Development Group be liable
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* to any party for direct, indirect, special, incidental, or consequential
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* damages arising out of the use of this software and its documentation,
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* even if Paul Falstad and the Zsh Development Group have been advised of
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* the possibility of such damage.
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*
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* Paul Falstad and the Zsh Development Group specifically disclaim any
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* warranties, including, but not limited to, the implied warranties of
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* merchantability and fitness for a particular purpose. The software
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* provided hereunder is on an "as is" basis, and Paul Falstad and the
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* Zsh Development Group have no obligation to provide maintenance,
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* support, updates, enhancements, or modifications.
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*
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*/
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#undef trashzle
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#undef zleread
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#undef spaceinline
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#undef gotword
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#undef refresh
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typedef struct widget *Widget;
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typedef struct thingy *Thingy;
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/* widgets (ZLE functions) */
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typedef void (*ZleIntFunc) _((void));
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struct widget {
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int flags; /* flags (see below) */
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Thingy first; /* `first' thingy that names this widget */
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union {
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ZleIntFunc fn; /* pointer to internally implemented widget */
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char *fnnam; /* name of the shell function for user-defined widget */
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} u;
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};
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#define WIDGET_INT (1<<0) /* widget is internally implemented */
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#define ZLE_MENUCMP (1<<1) /* DON'T invalidate completion list */
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#define ZLE_YANK (1<<3)
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#define ZLE_LINEMOVE (1<<4) /* command is a line-oriented movement */
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#define ZLE_LASTCOL (1<<5) /* command maintains lastcol correctly */
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#define ZLE_KILL (1<<6)
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#define ZLE_KEEPSUFFIX (1<<9) /* DON'T remove added suffix */
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/* thingies */
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struct thingy {
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HashNode next; /* next node in the hash chain */
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char *nam; /* name of the thingy */
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int flags; /* TH_* flags (see below) */
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int rc; /* reference count */
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Widget widget; /* widget named by this thingy */
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Thingy samew; /* `next' thingy (circularly) naming the same widget */
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};
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/* DISABLED is (1<<0) */
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#define TH_IMMORTAL (1<<1) /* can't refer to a different widget */
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/* command modifier prefixes */
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struct modifier {
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int flags; /* MOD_* flags (see below) */
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int mult; /* repeat count */
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int tmult; /* repeat count actually being edited */
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int vibuf; /* vi cut buffer */
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};
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#define MOD_MULT (1<<0) /* a repeat count has been selected */
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#define MOD_TMULT (1<<1) /* a repeat count is being entered */
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#define MOD_VIBUF (1<<2) /* a vi cut buffer has been selected */
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#define MOD_VIAPP (1<<3) /* appending to the vi cut buffer */
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#define MOD_NEG (1<<4) /* last command was negate argument */
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/* current modifier status */
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#define zmult (zmod.mult)
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/* undo system */
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struct change {
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struct change *prev, *next; /* adjacent changes */
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int flags; /* see below */
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int hist; /* history line being changed */
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int off; /* offset of the text changes */
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char *del; /* characters to delete (metafied) */
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char *ins; /* characters to insert (metafied) */
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};
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#define CH_NEXT (1<<0) /* next structure is also part of this change */
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#define CH_PREV (1<<1) /* previous structure is also part of this change */
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/* known thingies */
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#define Th(X) (&thingies[X])
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/* opaque keymap type */
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typedef struct keymap *Keymap;
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typedef void (*KeyScanFunc) _((char *, Thingy, char *, void *));
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#define invicmdmode() (!strcmp(curkeymapname, "vicmd"))
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/* Standard type of suffix removal. */
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#define removesuffix() iremovesuffix(256)
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/* Cut/kill buffer type. The buffer itself is purely binary data, *
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* not NUL-terminated. len is a length count. flags uses the *
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* CUTBUFFER_* constants defined below. */
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struct cutbuffer {
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char *buf;
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size_t len;
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char flags;
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};
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typedef struct cutbuffer *Cutbuffer;
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#define CUTBUFFER_LINE 1 /* for vi: buffer contains whole lines of data */
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#define KRINGCT 8 /* number of buffers in the kill ring */
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