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authorTanaka Akira <akr@users.sourceforge.net>1999-04-15 18:05:38 +0000
committerTanaka Akira <akr@users.sourceforge.net>1999-04-15 18:05:38 +0000
commite74702b467171dbdafb56dfe354794a212e020d9 (patch)
treec295b3e9b2e93e2de10331877442615b0f37e779 /Src/Zle/zle.h
parentc175751b501a3a4cb40ad4787340a597ea769be4 (diff)
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Initial revision
Diffstat (limited to 'Src/Zle/zle.h')
-rw-r--r--Src/Zle/zle.h137
1 files changed, 137 insertions, 0 deletions
diff --git a/Src/Zle/zle.h b/Src/Zle/zle.h
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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 refresh
+
+typedef struct widget *Widget;
+typedef struct thingy *Thingy;
+
+/* widgets (ZLE functions) */
+
+typedef void (*ZleIntFunc) _((void));
+
+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 */
+    } u;
+};
+
+#define WIDGET_INT	(1<<0)    /* widget is internally implemented */
+#define ZLE_MENUCMP	(1<<1)    /* 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<<9)    /* DON'T remove added suffix */
+
+/* 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)
+
+/* 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 */