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1/* $OpenBSD: histedit.h,v 1.15 2016/05/20 15:30:17 schwarze Exp $ */
2/* $NetBSD: histedit.h,v 1.46 2010/04/15 00:50:03 christos Exp $ */
3
4/*-
5 * Copyright (c) 1992, 1993
6 * The Regents of the University of California. All rights reserved.
7 *
8 * This code is derived from software contributed to Berkeley by
9 * Christos Zoulas of Cornell University.
10 *
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted provided that the following conditions
13 * are met:
14 * 1. Redistributions of source code must retain the above copyright
15 * notice, this list of conditions and the following disclaimer.
16 * 2. Redistributions in binary form must reproduce the above copyright
17 * notice, this list of conditions and the following disclaimer in the
18 * documentation and/or other materials provided with the distribution.
19 * 3. Neither the name of the University nor the names of its contributors
20 * may be used to endorse or promote products derived from this software
21 * without specific prior written permission.
22 *
23 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
26 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33 * SUCH DAMAGE.
34 *
35 * @(#)histedit.h 8.2 (Berkeley) 1/3/94
36 */
37
38/*
39 * histedit.h: Line editor and history interface.
40 */
41#ifndef _HISTEDIT_H_
42#define _HISTEDIT_H_
43
44#define LIBEDIT_MAJOR 2
45#define LIBEDIT_MINOR 11
46
47#include <stdint.h>
48
49#include <sys/types.h>
50#include <stdio.h>
51
52#ifdef __cplusplus
53extern "C" {
54#endif
55
56/*
57 * ==== Editing ====
58 */
59
60typedef struct editline EditLine;
61
62/*
63 * For user-defined function interface
64 */
65typedef struct lineinfo {
66 const char *buffer;
67 const char *cursor;
68 const char *lastchar;
69} LineInfo;
70
71/*
72 * EditLine editor function return codes.
73 * For user-defined function interface
74 */
75#define CC_NORM 0
76#define CC_NEWLINE 1
77#define CC_EOF 2
78#define CC_ARGHACK 3
79#define CC_REFRESH 4
80#define CC_CURSOR 5
81#define CC_ERROR 6
82#define CC_FATAL 7
83#define CC_REDISPLAY 8
84#define CC_REFRESH_BEEP 9
85
86/*
87 * Initialization, cleanup, and resetting
88 */
89EditLine *el_init(const char *, FILE *, FILE *, FILE *);
90void el_end(EditLine *);
91void el_reset(EditLine *);
92
93/*
94 * Get a line, a character or push a string back in the input queue
95 */
96const char *el_gets(EditLine *, int *);
97int el_getc(EditLine *, char *);
98void el_push(EditLine *, const char *);
99
100/*
101 * Beep!
102 */
103void el_beep(EditLine *);
104
105/*
106 * High level function internals control
107 * Parses argc, argv array and executes builtin editline commands
108 */
109int el_parse(EditLine *, int, const char **);
110
111/*
112 * Low level editline access functions
113 */
114int el_set(EditLine *, int, ...);
115int el_get(EditLine *, int, ...);
116unsigned char _el_fn_complete(EditLine *, int);
117
118/*
119 * el_set/el_get parameters
120 *
121 * When using el_wset/el_wget (as opposed to el_set/el_get):
122 * Char is wchar_t, otherwise it is char.
123 * prompt_func is el_wpfunc_t, otherwise it is el_pfunc_t .
124
125 * Prompt function prototypes are:
126 * typedef char *(*el_pfunct_t) (EditLine *);
127 * typedef wchar_t *(*el_wpfunct_t) (EditLine *);
128 *
129 * For operations that support set or set/get, the argument types listed are for
130 * the "set" operation. For "get", each listed type must be a pointer.
131 * E.g. EL_EDITMODE takes an int when set, but an int* when get.
132 *
133 * Operations that only support "get" have the correct argument types listed.
134 */
135#define EL_PROMPT 0 /* , prompt_func); set/get */
136#define EL_TERMINAL 1 /* , const char *); set/get */
137#define EL_EDITOR 2 /* , const Char *); set/get */
138#define EL_SIGNAL 3 /* , int); set/get */
139#define EL_BIND 4 /* , const Char *, ..., NULL); set */
140#define EL_TELLTC 5 /* , const Char *, ..., NULL); set */
141#define EL_SETTC 6 /* , const Char *, ..., NULL); set */
142#define EL_ECHOTC 7 /* , const Char *, ..., NULL); set */
143#define EL_SETTY 8 /* , const Char *, ..., NULL); set */
144#define EL_ADDFN 9 /* , const Char *, const Char, set */
145 /* el_func_t); */
146#define EL_HIST 10 /* , hist_fun_t, const void *); set */
147#define EL_EDITMODE 11 /* , int); set/get */
148#define EL_RPROMPT 12 /* , prompt_func); set/get */
149#define EL_GETCFN 13 /* , el_rfunc_t); set/get */
150#define EL_CLIENTDATA 14 /* , void *); set/get */
151#define EL_UNBUFFERED 15 /* , int); set/get */
152#define EL_PREP_TERM 16 /* , int); set */
153#define EL_GETTC 17 /* , const Char *, ..., NULL); get */
154#define EL_GETFP 18 /* , int, FILE **); get */
155#define EL_SETFP 19 /* , int, FILE *); set */
156#define EL_REFRESH 20 /* , void); set */
157#define EL_PROMPT_ESC 21 /* , prompt_func, Char); set/get */
158#define EL_RPROMPT_ESC 22 /* , prompt_func, Char); set/get */
159#define EL_RESIZE 23 /* , el_zfunc_t, void *); set */
160
161#define EL_BUILTIN_GETCFN (NULL)
162
163/*
164 * Source named file or $PWD/.editrc or $HOME/.editrc
165 */
166int el_source(EditLine *, const char *);
167
168/*
169 * Must be called when the terminal changes size; If EL_SIGNAL
170 * is set this is done automatically otherwise it is the responsibility
171 * of the application
172 */
173void el_resize(EditLine *);
174
175/*
176 * User-defined function interface.
177 */
178const LineInfo *el_line(EditLine *);
179int el_insertstr(EditLine *, const char *);
180void el_deletestr(EditLine *, int);
181
182
183/*
184 * ==== History ====
185 */
186
187typedef struct history History;
188
189typedef struct HistEvent {
190 int num;
191 const char *str;
192} HistEvent;
193
194/*
195 * History access functions.
196 */
197History * history_init(void);
198void history_end(History *);
199
200int history(History *, HistEvent *, int, ...);
201
202#define H_FUNC 0 /* , UTSL */
203#define H_SETSIZE 1 /* , const int); */
204#define H_GETSIZE 2 /* , void); */
205#define H_FIRST 3 /* , void); */
206#define H_LAST 4 /* , void); */
207#define H_PREV 5 /* , void); */
208#define H_NEXT 6 /* , void); */
209#define H_CURR 8 /* , const int); */
210#define H_SET 7 /* , int); */
211#define H_ADD 9 /* , const wchar_t *); */
212#define H_ENTER 10 /* , const wchar_t *); */
213#define H_APPEND 11 /* , const wchar_t *); */
214#define H_END 12 /* , void); */
215#define H_NEXT_STR 13 /* , const wchar_t *); */
216#define H_PREV_STR 14 /* , const wchar_t *); */
217#define H_NEXT_EVENT 15 /* , const int); */
218#define H_PREV_EVENT 16 /* , const int); */
219#define H_LOAD 17 /* , const char *); */
220#define H_SAVE 18 /* , const char *); */
221#define H_CLEAR 19 /* , void); */
222#define H_SETUNIQUE 20 /* , int); */
223#define H_GETUNIQUE 21 /* , void); */
224#define H_DEL 22 /* , int); */
225#define H_NEXT_EVDATA 23 /* , const int, histdata_t *); */
226#define H_DELDATA 24 /* , int, histdata_t *);*/
227#define H_REPLACE 25 /* , const char *, histdata_t); */
228#define H_SAVE_FP 26 /* , FILE *); */
229
230
231
232/*
233 * ==== Tokenization ====
234 */
235
236typedef struct tokenizer Tokenizer;
237
238/*
239 * String tokenization functions, using simplified sh(1) quoting rules
240 */
241Tokenizer *tok_init(const char *);
242void tok_end(Tokenizer *);
243void tok_reset(Tokenizer *);
244int tok_line(Tokenizer *, const LineInfo *,
245 int *, const char ***, int *, int *);
246int tok_str(Tokenizer *, const char *,
247 int *, const char ***);
248
249/*
250 * Begin Wide Character Support
251 */
252#include <wchar.h>
253#include <wctype.h>
254
255/*
256 * ==== Editing ====
257 */
258typedef struct lineinfow {
259 const wchar_t *buffer;
260 const wchar_t *cursor;
261 const wchar_t *lastchar;
262} LineInfoW;
263
264typedef int (*el_rfunc_t)(EditLine *, wchar_t *);
265
266const wchar_t *el_wgets(EditLine *, int *);
267int el_wgetc(EditLine *, wchar_t *);
268void el_wpush(EditLine *, const wchar_t *);
269
270int el_wparse(EditLine *, int, const wchar_t **);
271
272int el_wset(EditLine *, int, ...);
273int el_wget(EditLine *, int, ...);
274
275const LineInfoW *el_wline(EditLine *);
276int el_winsertstr(EditLine *, const wchar_t *);
277#define el_wdeletestr el_deletestr
278
279/*
280 * ==== History ====
281 */
282typedef struct histeventW {
283 int num;
284 const wchar_t *str;
285} HistEventW;
286
287typedef struct historyW HistoryW;
288
289HistoryW * history_winit(void);
290void history_wend(HistoryW *);
291
292int history_w(HistoryW *, HistEventW *, int, ...);
293
294/*
295 * ==== Tokenization ====
296 */
297typedef struct tokenizerW TokenizerW;
298
299/* Wide character tokenizer support */
300TokenizerW *tok_winit(const wchar_t *);
301void tok_wend(TokenizerW *);
302void tok_wreset(TokenizerW *);
303int tok_wline(TokenizerW *, const LineInfoW *,
304 int *, const wchar_t ***, int *, int *);
305int tok_wstr(TokenizerW *, const wchar_t *,
306 int *, const wchar_t ***);
307
308#ifdef __cplusplus
309}
310#endif
311
312#endif /* _HISTEDIT_H_ */