1/* Output generating routines for GDB.
2
3   Copyright (C) 1999, 2000, 2001, 2002, 2003, 2005, 2007
4   Free Software Foundation, Inc.
5
6   Contributed by Cygnus Solutions.
7   Written by Fernando Nasser for Cygnus.
8
9   This file is part of GDB.
10
11   This program is free software; you can redistribute it and/or modify
12   it under the terms of the GNU General Public License as published by
13   the Free Software Foundation; either version 3 of the License, or
14   (at your option) any later version.
15
16   This program is distributed in the hope that it will be useful,
17   but WITHOUT ANY WARRANTY; without even the implied warranty of
18   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
19   GNU General Public License for more details.
20
21   You should have received a copy of the GNU General Public License
22   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
23
24#ifndef UI_OUT_H
25#define UI_OUT_H 1
26
27/* The ui_out structure */
28
29struct ui_out;
30struct ui_out_data;
31struct ui_file;
32
33/* the current ui_out */
34
35/* FIXME: This should not be a global but something passed down from main.c
36   or top.c */
37extern struct ui_out *uiout;
38
39/* alignment enum */
40enum ui_align
41  {
42    ui_left = -1,
43    ui_center,
44    ui_right,
45    ui_noalign
46  };
47
48/* flags enum */
49enum ui_flags
50  {
51    ui_from_tty = 1,
52    ui_source_list = 2
53  };
54
55
56/* The ui_out stream structure. */
57/* NOTE: cagney/2000-02-01: The ui_stream object can be subsumed by
58   the more generic ui_file object.  */
59
60struct ui_stream
61  {
62    struct ui_out *uiout;
63    struct ui_file *stream;
64  };
65
66
67/* Prototypes for ui-out API. */
68
69/* A result is a recursive data structure consisting of lists and
70   tuples. */
71
72enum ui_out_type
73  {
74    ui_out_type_tuple,
75    ui_out_type_list
76  };
77
78extern void ui_out_begin (struct ui_out *uiout,
79			  enum ui_out_type level_type,
80			  const char *id);
81
82extern void ui_out_end (struct ui_out *uiout, enum ui_out_type type);
83
84extern struct cleanup *ui_out_begin_cleanup_end (struct ui_out *uiout,
85						 enum ui_out_type level_type,
86						 const char *id);
87
88/* A table can be considered a special tuple/list combination with the
89   implied structure: ``table = { hdr = { header, ... } , body = [ {
90   field, ... }, ... ] }''. If NR_ROWS is negative then there is at
91   least one row. */
92extern void ui_out_table_header (struct ui_out *uiout, int width,
93				 enum ui_align align, const char *col_name,
94				 const char *colhdr);
95
96extern void ui_out_table_body (struct ui_out *uiout);
97
98extern struct cleanup *make_cleanup_ui_out_table_begin_end (struct ui_out *ui_out,
99                                                            int nr_cols,
100                                                           int nr_rows,
101                                                           const char *tblid);
102/* Compatibility wrappers.  */
103
104extern struct cleanup *make_cleanup_ui_out_list_begin_end (struct ui_out *uiout,
105							   const char *id);
106
107extern struct cleanup *make_cleanup_ui_out_tuple_begin_end (struct ui_out *uiout,
108							    const char *id);
109
110extern void ui_out_field_int (struct ui_out *uiout, const char *fldname,
111			      int value);
112
113extern void ui_out_field_fmt_int (struct ui_out *uiout, int width,
114				  enum ui_align align, const char *fldname,
115		 		  int value);
116
117extern void ui_out_field_core_addr (struct ui_out *uiout, const char *fldname,
118				    CORE_ADDR address);
119
120extern void ui_out_field_string (struct ui_out * uiout, const char *fldname,
121				 const char *string);
122
123extern void ui_out_field_stream (struct ui_out *uiout, const char *fldname,
124				 struct ui_stream *buf);
125
126extern void ui_out_field_fmt (struct ui_out *uiout, const char *fldname,
127			      const char *format, ...)
128     ATTR_FORMAT (printf, 3, 4);
129
130extern void ui_out_field_skip (struct ui_out *uiout, const char *fldname);
131
132extern void ui_out_spaces (struct ui_out *uiout, int numspaces);
133
134extern void ui_out_text (struct ui_out *uiout, const char *string);
135
136extern void ui_out_message (struct ui_out *uiout, int verbosity,
137			    const char *format, ...)
138     ATTR_FORMAT (printf, 3, 4);
139
140extern struct ui_stream *ui_out_stream_new (struct ui_out *uiout);
141
142extern void ui_out_stream_delete (struct ui_stream *buf);
143
144struct cleanup *make_cleanup_ui_out_stream_delete (struct ui_stream *buf);
145
146extern void ui_out_wrap_hint (struct ui_out *uiout, char *identstring);
147
148extern void ui_out_flush (struct ui_out *uiout);
149
150extern void ui_out_get_field_separator (struct ui_out *uiout);
151
152extern int ui_out_set_flags (struct ui_out *uiout, int mask);
153
154extern int ui_out_clear_flags (struct ui_out *uiout, int mask);
155
156extern int ui_out_get_verblvl (struct ui_out *uiout);
157
158extern int ui_out_test_flags (struct ui_out *uiout, int mask);
159
160#if 0
161extern void ui_out_result_begin (struct ui_out *uiout, char *class);
162
163extern void ui_out_result_end (struct ui_out *uiout);
164
165extern void ui_out_info_begin (struct ui_out *uiout, char *class);
166
167extern void ui_out_info_end (struct ui_out *uiout);
168
169extern void ui_out_notify_begin (struct ui_out *uiout, char *class);
170
171extern void ui_out_notify_end (struct ui_out *uiout);
172
173extern void ui_out_error_begin (struct ui_out *uiout, char *class);
174
175extern void ui_out_error_end (struct ui_out *uiout);
176#endif
177
178#if 0
179extern void gdb_error (struct ui_out *uiout, int severity, char *format, ...);
180
181extern void gdb_query (struct ui_out *uiout, int qflags, char *qprompt);
182#endif
183
184/* HACK: Code in GDB is currently checking to see the type of ui_out
185   builder when determining which output to produce.  This function is
186   a hack to encapsulate that test.  Once GDB manages to separate the
187   CLI/MI from the core of GDB the problem should just go away ....  */
188
189extern int ui_out_is_mi_like_p (struct ui_out *uiout);
190
191/* From here on we have things that are only needed by implementation
192   routines and main.c.   We should pehaps have a separate file for that,
193   like a  ui-out-impl.h  file */
194
195/* User Interface Output Implementation Function Table */
196
197/* Type definition of all implementation functions. */
198
199typedef void (table_begin_ftype) (struct ui_out * uiout,
200				  int nbrofcols, int nr_rows,
201				  const char *tblid);
202typedef void (table_body_ftype) (struct ui_out * uiout);
203typedef void (table_end_ftype) (struct ui_out * uiout);
204typedef void (table_header_ftype) (struct ui_out * uiout, int width,
205				   enum ui_align align, const char *col_name,
206				   const char *colhdr);
207/* Note: level 0 is the top-level so LEVEL is always greater than
208   zero. */
209typedef void (ui_out_begin_ftype) (struct ui_out *uiout,
210				   enum ui_out_type type,
211				   int level, const char *id);
212typedef void (ui_out_end_ftype) (struct ui_out *uiout,
213				 enum ui_out_type type,
214				 int level);
215typedef void (field_int_ftype) (struct ui_out * uiout, int fldno, int width,
216				enum ui_align align,
217				const char *fldname, int value);
218typedef void (field_skip_ftype) (struct ui_out * uiout, int fldno, int width,
219				 enum ui_align align,
220				 const char *fldname);
221typedef void (field_string_ftype) (struct ui_out * uiout, int fldno, int width,
222				   enum ui_align align,
223				   const char *fldname,
224				   const char *string);
225typedef void (field_fmt_ftype) (struct ui_out * uiout, int fldno, int width,
226				enum ui_align align,
227				const char *fldname,
228				const char *format,
229				va_list args) ATTRIBUTE_FPTR_PRINTF(6,0);
230typedef void (spaces_ftype) (struct ui_out * uiout, int numspaces);
231typedef void (text_ftype) (struct ui_out * uiout,
232			   const char *string);
233typedef void (message_ftype) (struct ui_out * uiout, int verbosity,
234			      const char *format, va_list args)
235     ATTRIBUTE_FPTR_PRINTF(3,0);
236typedef void (wrap_hint_ftype) (struct ui_out * uiout, char *identstring);
237typedef void (flush_ftype) (struct ui_out * uiout);
238typedef int (redirect_ftype) (struct ui_out * uiout,
239			      struct ui_file * outstream);
240
241/* ui-out-impl */
242
243/* IMPORTANT: If you change this structure, make sure to change the default
244   initialization in ui-out.c */
245
246struct ui_out_impl
247  {
248    table_begin_ftype *table_begin;
249    table_body_ftype *table_body;
250    table_end_ftype *table_end;
251    table_header_ftype *table_header;
252    ui_out_begin_ftype *begin;
253    ui_out_end_ftype *end;
254    field_int_ftype *field_int;
255    field_skip_ftype *field_skip;
256    field_string_ftype *field_string;
257    field_fmt_ftype *field_fmt;
258    spaces_ftype *spaces;
259    text_ftype *text;
260    message_ftype *message;
261    wrap_hint_ftype *wrap_hint;
262    flush_ftype *flush;
263    redirect_ftype *redirect;
264    int is_mi_like_p;
265  };
266
267extern struct ui_out_data *ui_out_data (struct ui_out *uiout);
268
269
270/* Create a ui_out object */
271
272extern struct ui_out *ui_out_new (struct ui_out_impl *impl,
273				  struct ui_out_data *data,
274				  int flags);
275
276/* Redirect the ouptut of a ui_out object temporarily.  */
277
278extern int ui_out_redirect (struct ui_out *uiout, struct ui_file *outstream);
279
280#endif /* UI_OUT_H */
281