1 /* MI Command Set - output generating routines.
3 Copyright (C) 2000, 2002-2005, 2007-2012 Free Software Foundation,
6 Contributed by Cygnus Solutions (a Red Hat company).
8 This file is part of GDB.
10 This program is free software; you can redistribute it and/or modify
11 it under the terms of the GNU General Public License as published by
12 the Free Software Foundation; either version 3 of the License, or
13 (at your option) any later version.
15 This program is distributed in the hope that it will be useful,
16 but WITHOUT ANY WARRANTY; without even the implied warranty of
17 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 GNU General Public License for more details.
20 You should have received a copy of the GNU General Public License
21 along with this program. If not, see <http://www.gnu.org/licenses/>. */
29 int suppress_field_separator;
32 struct ui_file *buffer;
33 struct ui_file *original_buffer;
35 typedef struct ui_out_data mi_out_data;
37 /* These are the MI output functions */
39 static void mi_table_begin (struct ui_out *uiout, int nbrofcols,
40 int nr_rows, const char *tblid);
41 static void mi_table_body (struct ui_out *uiout);
42 static void mi_table_end (struct ui_out *uiout);
43 static void mi_table_header (struct ui_out *uiout, int width,
44 enum ui_align alig, const char *col_name,
46 static void mi_begin (struct ui_out *uiout, enum ui_out_type type,
47 int level, const char *id);
48 static void mi_end (struct ui_out *uiout, enum ui_out_type type, int level);
49 static void mi_field_int (struct ui_out *uiout, int fldno, int width,
50 enum ui_align alig, const char *fldname, int value);
51 static void mi_field_skip (struct ui_out *uiout, int fldno, int width,
52 enum ui_align alig, const char *fldname);
53 static void mi_field_string (struct ui_out *uiout, int fldno, int width,
54 enum ui_align alig, const char *fldname,
56 static void mi_field_fmt (struct ui_out *uiout, int fldno,
57 int width, enum ui_align align,
58 const char *fldname, const char *format,
59 va_list args) ATTRIBUTE_PRINTF (6, 0);
60 static void mi_spaces (struct ui_out *uiout, int numspaces);
61 static void mi_text (struct ui_out *uiout, const char *string);
62 static void mi_message (struct ui_out *uiout, int verbosity,
63 const char *format, va_list args)
64 ATTRIBUTE_PRINTF (3, 0);
65 static void mi_wrap_hint (struct ui_out *uiout, char *identstring);
66 static void mi_flush (struct ui_out *uiout);
67 static int mi_redirect (struct ui_out *uiout, struct ui_file *outstream);
69 /* This is the MI ui-out implementation functions vector */
71 /* FIXME: This can be initialized dynamically after default is set to
72 handle initial output in main.c */
74 struct ui_out_impl mi_ui_out_impl =
92 1, /* Needs MI hacks. */
95 /* Prototypes for local functions */
97 extern void _initialize_mi_out (void);
98 static void field_separator (struct ui_out *uiout);
99 static void mi_open (struct ui_out *uiout, const char *name,
100 enum ui_out_type type);
101 static void mi_close (struct ui_out *uiout, enum ui_out_type type);
103 /* Mark beginning of a table. */
106 mi_table_begin (struct ui_out *uiout,
111 mi_open (uiout, tblid, ui_out_type_tuple);
112 mi_field_int (uiout, -1, -1, -1, "nr_rows", nr_rows);
113 mi_field_int (uiout, -1, -1, -1, "nr_cols", nr_cols);
114 mi_open (uiout, "hdr", ui_out_type_list);
117 /* Mark beginning of a table body. */
120 mi_table_body (struct ui_out *uiout)
122 mi_out_data *data = ui_out_data (uiout);
124 if (data->suppress_output)
126 /* close the table header line if there were any headers */
127 mi_close (uiout, ui_out_type_list);
128 mi_open (uiout, "body", ui_out_type_list);
131 /* Mark end of a table. */
134 mi_table_end (struct ui_out *uiout)
136 mi_out_data *data = ui_out_data (uiout);
138 data->suppress_output = 0;
139 mi_close (uiout, ui_out_type_list); /* body */
140 mi_close (uiout, ui_out_type_tuple);
143 /* Specify table header. */
146 mi_table_header (struct ui_out *uiout, int width, enum ui_align alignment,
147 const char *col_name, const char *colhdr)
149 mi_out_data *data = ui_out_data (uiout);
151 if (data->suppress_output)
154 mi_open (uiout, NULL, ui_out_type_tuple);
155 mi_field_int (uiout, 0, 0, 0, "width", width);
156 mi_field_int (uiout, 0, 0, 0, "alignment", alignment);
157 mi_field_string (uiout, 0, 0, 0, "col_name", col_name);
158 mi_field_string (uiout, 0, width, alignment, "colhdr", colhdr);
159 mi_close (uiout, ui_out_type_tuple);
162 /* Mark beginning of a list. */
165 mi_begin (struct ui_out *uiout, enum ui_out_type type, int level,
168 mi_out_data *data = ui_out_data (uiout);
170 if (data->suppress_output)
173 mi_open (uiout, id, type);
176 /* Mark end of a list. */
179 mi_end (struct ui_out *uiout, enum ui_out_type type, int level)
181 mi_out_data *data = ui_out_data (uiout);
183 if (data->suppress_output)
186 mi_close (uiout, type);
189 /* Output an int field. */
192 mi_field_int (struct ui_out *uiout, int fldno, int width,
193 enum ui_align alignment, const char *fldname, int value)
195 char buffer[20]; /* FIXME: how many chars long a %d can become? */
196 mi_out_data *data = ui_out_data (uiout);
198 if (data->suppress_output)
201 sprintf (buffer, "%d", value);
202 mi_field_string (uiout, fldno, width, alignment, fldname, buffer);
205 /* Used to omit a field. */
208 mi_field_skip (struct ui_out *uiout, int fldno, int width,
209 enum ui_align alignment, const char *fldname)
213 /* Other specific mi_field_* end up here so alignment and field
214 separators are both handled by mi_field_string. */
217 mi_field_string (struct ui_out *uiout, int fldno, int width,
218 enum ui_align align, const char *fldname, const char *string)
220 mi_out_data *data = ui_out_data (uiout);
222 if (data->suppress_output)
225 field_separator (uiout);
227 fprintf_unfiltered (data->buffer, "%s=", fldname);
228 fprintf_unfiltered (data->buffer, "\"");
230 fputstr_unfiltered (string, '"', data->buffer);
231 fprintf_unfiltered (data->buffer, "\"");
234 /* This is the only field function that does not align. */
237 mi_field_fmt (struct ui_out *uiout, int fldno, int width,
238 enum ui_align align, const char *fldname,
239 const char *format, va_list args)
241 mi_out_data *data = ui_out_data (uiout);
243 if (data->suppress_output)
246 field_separator (uiout);
248 fprintf_unfiltered (data->buffer, "%s=\"", fldname);
250 fputs_unfiltered ("\"", data->buffer);
251 vfprintf_unfiltered (data->buffer, format, args);
252 fputs_unfiltered ("\"", data->buffer);
256 mi_spaces (struct ui_out *uiout, int numspaces)
261 mi_text (struct ui_out *uiout, const char *string)
266 mi_message (struct ui_out *uiout, int verbosity,
267 const char *format, va_list args)
272 mi_wrap_hint (struct ui_out *uiout, char *identstring)
274 wrap_here (identstring);
278 mi_flush (struct ui_out *uiout)
280 mi_out_data *data = ui_out_data (uiout);
282 gdb_flush (data->buffer);
286 mi_redirect (struct ui_out *uiout, struct ui_file *outstream)
288 mi_out_data *data = ui_out_data (uiout);
290 if (outstream != NULL)
292 data->original_buffer = data->buffer;
293 data->buffer = outstream;
295 else if (data->original_buffer != NULL)
297 data->buffer = data->original_buffer;
298 data->original_buffer = NULL;
304 /* local functions */
306 /* access to ui_out format private members */
309 field_separator (struct ui_out *uiout)
311 mi_out_data *data = ui_out_data (uiout);
313 if (data->suppress_field_separator)
314 data->suppress_field_separator = 0;
316 fputc_unfiltered (',', data->buffer);
320 mi_open (struct ui_out *uiout, const char *name, enum ui_out_type type)
322 mi_out_data *data = ui_out_data (uiout);
324 field_separator (uiout);
325 data->suppress_field_separator = 1;
327 fprintf_unfiltered (data->buffer, "%s=", name);
330 case ui_out_type_tuple:
331 fputc_unfiltered ('{', data->buffer);
333 case ui_out_type_list:
334 fputc_unfiltered ('[', data->buffer);
337 internal_error (__FILE__, __LINE__, _("bad switch"));
342 mi_close (struct ui_out *uiout, enum ui_out_type type)
344 mi_out_data *data = ui_out_data (uiout);
348 case ui_out_type_tuple:
349 fputc_unfiltered ('}', data->buffer);
351 case ui_out_type_list:
352 fputc_unfiltered (']', data->buffer);
355 internal_error (__FILE__, __LINE__, _("bad switch"));
357 data->suppress_field_separator = 0;
360 /* Add a string to the buffer. */
363 mi_out_buffered (struct ui_out *uiout, char *string)
365 mi_out_data *data = ui_out_data (uiout);
367 fprintf_unfiltered (data->buffer, "%s", string);
370 /* Clear the buffer. */
373 mi_out_rewind (struct ui_out *uiout)
375 mi_out_data *data = ui_out_data (uiout);
377 ui_file_rewind (data->buffer);
380 /* Dump the buffer onto the specified stream. */
383 do_write (void *data, const char *buffer, long length_buffer)
385 ui_file_write (data, buffer, length_buffer);
389 mi_out_put (struct ui_out *uiout, struct ui_file *stream)
391 mi_out_data *data = ui_out_data (uiout);
393 ui_file_put (data->buffer, do_write, stream);
394 ui_file_rewind (data->buffer);
397 /* Return the current MI version. */
400 mi_version (struct ui_out *uiout)
402 mi_out_data *data = ui_out_data (uiout);
404 return data->mi_version;
407 /* Initialize private members at startup. */
410 mi_out_new (int mi_version)
414 mi_out_data *data = XMALLOC (mi_out_data);
415 data->suppress_field_separator = 0;
416 data->suppress_output = 0;
417 data->mi_version = mi_version;
418 /* FIXME: This code should be using a ``string_file'' and not the
420 data->buffer = mem_fileopen ();
421 return ui_out_new (&mi_ui_out_impl, data, flags);