binutils-gdb/gdb/mi/mi-out.c

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/* MI Command Set - output generating routines.
Copyright 2000, 2002 Free Software Foundation, Inc.
Contributed by Cygnus Solutions (a Red Hat company).
This file is part of GDB.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
#include "defs.h"
#include "ui-out.h"
#include "mi-out.h"
struct ui_out_data
{
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int suppress_field_separator;
int suppress_output;
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int mi_version;
struct ui_file *buffer;
};
/* These are the MI output functions */
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static void mi_table_begin (struct ui_out *uiout, int nbrofcols,
int nr_rows, const char *tblid);
static void mi_table_body (struct ui_out *uiout);
static void mi_table_end (struct ui_out *uiout);
static void mi_table_header (struct ui_out *uiout, int width,
enum ui_align alig, const char *col_name,
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const char *colhdr);
static void mi_begin (struct ui_out *uiout, enum ui_out_type type,
int level, const char *id);
static void mi_end (struct ui_out *uiout, enum ui_out_type type, int level);
static void mi_field_int (struct ui_out *uiout, int fldno, int width,
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enum ui_align alig, const char *fldname, int value);
static void mi_field_skip (struct ui_out *uiout, int fldno, int width,
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enum ui_align alig, const char *fldname);
static void mi_field_string (struct ui_out *uiout, int fldno, int width,
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enum ui_align alig, const char *fldname,
const char *string);
static void mi_field_fmt (struct ui_out *uiout, int fldno,
int width, enum ui_align align,
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const char *fldname, const char *format,
va_list args);
static void mi_spaces (struct ui_out *uiout, int numspaces);
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static void mi_text (struct ui_out *uiout, const char *string);
static void mi_message (struct ui_out *uiout, int verbosity,
const char *format, va_list args);
static void mi_wrap_hint (struct ui_out *uiout, char *identstring);
static void mi_flush (struct ui_out *uiout);
/* This is the MI ui-out implementation functions vector */
/* FIXME: This can be initialized dynamically after default is set to
handle initial output in main.c */
struct ui_out_impl mi_ui_out_impl =
{
mi_table_begin,
mi_table_body,
mi_table_end,
mi_table_header,
mi_begin,
mi_end,
mi_field_int,
mi_field_skip,
mi_field_string,
mi_field_fmt,
mi_spaces,
mi_text,
mi_message,
mi_wrap_hint,
mi_flush,
1, /* Needs MI hacks. */
};
/* Prototypes for local functions */
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extern void _initialize_mi_out (void);
static void field_separator (struct ui_out *uiout);
static void mi_open (struct ui_out *uiout, const char *name,
enum ui_out_type type);
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static void mi_close (struct ui_out *uiout, enum ui_out_type type);
static void out_field_fmt (struct ui_out *uiout, int fldno, char *fldname,
char *format,...);
/* Mark beginning of a table */
void
mi_table_begin (struct ui_out *uiout,
int nr_cols,
int nr_rows,
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const char *tblid)
{
struct ui_out_data *data = ui_out_data (uiout);
mi_open (uiout, tblid, ui_out_type_tuple);
if (data->mi_version == 0)
{
if (nr_rows == 0)
data->suppress_output = 1;
else
mi_open (uiout, "hdr", ui_out_type_list);
return;
}
mi_field_int (uiout, -1/*fldno*/, -1/*width*/, -1/*alin*/,
"nr_rows", nr_rows);
mi_field_int (uiout, -1/*fldno*/, -1/*width*/, -1/*alin*/,
"nr_cols", nr_cols);
mi_open (uiout, "hdr", ui_out_type_list);
}
/* Mark beginning of a table body */
void
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mi_table_body (struct ui_out *uiout)
{
struct ui_out_data *data = ui_out_data (uiout);
if (data->suppress_output)
return;
/* close the table header line if there were any headers */
mi_close (uiout, ui_out_type_list);
if (data->mi_version == 0)
return;
mi_open (uiout, "body", ui_out_type_list);
}
/* Mark end of a table */
void
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mi_table_end (struct ui_out *uiout)
{
struct ui_out_data *data = ui_out_data (uiout);
data->suppress_output = 0;
if (data->mi_version == 0)
{
mi_close (uiout, ui_out_type_tuple);
return;
}
mi_close (uiout, ui_out_type_list); /* body */
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mi_close (uiout, ui_out_type_tuple);
}
/* Specify table header */
void
mi_table_header (struct ui_out *uiout, int width, enum ui_align alignment,
const char *col_name,
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const char *colhdr)
{
struct ui_out_data *data = ui_out_data (uiout);
if (data->suppress_output)
return;
if (data->mi_version == 0)
{
mi_field_string (uiout, 0, width, alignment, 0, colhdr);
return;
}
mi_open (uiout, NULL, ui_out_type_tuple);
mi_field_int (uiout, 0, 0, 0, "width", width);
mi_field_int (uiout, 0, 0, 0, "alignment", alignment);
mi_field_string (uiout, 0, 0, 0, "col_name", col_name);
mi_field_string (uiout, 0, width, alignment, "colhdr", colhdr);
mi_close (uiout, ui_out_type_tuple);
}
/* Mark beginning of a list */
void
mi_begin (struct ui_out *uiout,
enum ui_out_type type,
int level,
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const char *id)
{
struct ui_out_data *data = ui_out_data (uiout);
if (data->suppress_output)
return;
mi_open (uiout, id, type);
}
/* Mark end of a list */
void
mi_end (struct ui_out *uiout,
enum ui_out_type type,
int level)
{
struct ui_out_data *data = ui_out_data (uiout);
if (data->suppress_output)
return;
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mi_close (uiout, type);
}
/* output an int field */
void
mi_field_int (struct ui_out *uiout, int fldno, int width,
enum ui_align alignment, const char *fldname, int value)
{
char buffer[20]; /* FIXME: how many chars long a %d can become? */
struct ui_out_data *data = ui_out_data (uiout);
if (data->suppress_output)
return;
sprintf (buffer, "%d", value);
mi_field_string (uiout, fldno, width, alignment, fldname, buffer);
}
/* used to ommit a field */
void
mi_field_skip (struct ui_out *uiout, int fldno, int width,
enum ui_align alignment, const char *fldname)
{
struct ui_out_data *data = ui_out_data (uiout);
if (data->suppress_output)
return;
mi_field_string (uiout, fldno, width, alignment, fldname, "");
}
/* other specific mi_field_* end up here so alignment and field
separators are both handled by mi_field_string */
void
mi_field_string (struct ui_out *uiout,
int fldno,
int width,
enum ui_align align,
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const char *fldname,
const char *string)
{
struct ui_out_data *data = ui_out_data (uiout);
if (data->suppress_output)
return;
field_separator (uiout);
if (fldname)
fprintf_unfiltered (data->buffer, "%s=", fldname);
fprintf_unfiltered (data->buffer, "\"");
if (string)
fputstr_unfiltered (string, '"', data->buffer);
fprintf_unfiltered (data->buffer, "\"");
}
/* This is the only field function that does not align */
void
mi_field_fmt (struct ui_out *uiout, int fldno,
int width, enum ui_align align,
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const char *fldname,
const char *format,
va_list args)
{
struct ui_out_data *data = ui_out_data (uiout);
if (data->suppress_output)
return;
field_separator (uiout);
if (fldname)
fprintf_unfiltered (data->buffer, "%s=\"", fldname);
else
fputs_unfiltered ("\"", data->buffer);
vfprintf_unfiltered (data->buffer, format, args);
fputs_unfiltered ("\"", data->buffer);
}
void
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mi_spaces (struct ui_out *uiout, int numspaces)
{
}
void
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mi_text (struct ui_out *uiout, const char *string)
{
}
void
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mi_message (struct ui_out *uiout, int verbosity,
const char *format,
va_list args)
{
}
void
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mi_wrap_hint (struct ui_out *uiout, char *identstring)
{
wrap_here (identstring);
}
void
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mi_flush (struct ui_out *uiout)
{
struct ui_out_data *data = ui_out_data (uiout);
gdb_flush (data->buffer);
}
/* local functions */
/* Like mi_field_fmt, but takes a variable number of args
and makes a va_list and does not insert a separator */
/* VARARGS */
static void
out_field_fmt (struct ui_out *uiout, int fldno, char *fldname,
char *format,...)
{
struct ui_out_data *data = ui_out_data (uiout);
va_list args;
field_separator (uiout);
if (fldname)
fprintf_unfiltered (data->buffer, "%s=\"", fldname);
else
fputs_unfiltered ("\"", data->buffer);
va_start (args, format);
vfprintf_unfiltered (data->buffer, format, args);
fputs_unfiltered ("\"", data->buffer);
va_end (args);
}
/* access to ui_out format private members */
static void
field_separator (struct ui_out *uiout)
{
struct ui_out_data *data = ui_out_data (uiout);
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if (data->suppress_field_separator)
data->suppress_field_separator = 0;
else
fputc_unfiltered (',', data->buffer);
}
static void
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mi_open (struct ui_out *uiout,
const char *name,
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enum ui_out_type type)
{
struct ui_out_data *data = ui_out_data (uiout);
field_separator (uiout);
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data->suppress_field_separator = 1;
if (name)
fprintf_unfiltered (data->buffer, "%s=", name);
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switch (type)
{
case ui_out_type_tuple:
fputc_unfiltered ('{', data->buffer);
break;
case ui_out_type_list:
if (data->mi_version == 0)
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fputc_unfiltered ('{', data->buffer);
else
fputc_unfiltered ('[', data->buffer);
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break;
default:
internal_error (__FILE__, __LINE__, "bad switch");
}
}
static void
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mi_close (struct ui_out *uiout,
enum ui_out_type type)
{
struct ui_out_data *data = ui_out_data (uiout);
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switch (type)
{
case ui_out_type_tuple:
fputc_unfiltered ('}', data->buffer);
break;
case ui_out_type_list:
if (data->mi_version == 0)
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fputc_unfiltered ('}', data->buffer);
else
fputc_unfiltered (']', data->buffer);
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break;
default:
internal_error (__FILE__, __LINE__, "bad switch");
}
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data->suppress_field_separator = 0;
}
/* add a string to the buffer */
void
mi_out_buffered (struct ui_out *uiout, char *string)
{
struct ui_out_data *data = ui_out_data (uiout);
fprintf_unfiltered (data->buffer, "%s", string);
}
/* clear the buffer */
void
mi_out_rewind (struct ui_out *uiout)
{
struct ui_out_data *data = ui_out_data (uiout);
ui_file_rewind (data->buffer);
}
/* dump the buffer onto the specified stream */
static void
do_write (void *data, const char *buffer, long length_buffer)
{
ui_file_write (data, buffer, length_buffer);
}
void
mi_out_put (struct ui_out *uiout,
struct ui_file *stream)
{
struct ui_out_data *data = ui_out_data (uiout);
ui_file_put (data->buffer, do_write, stream);
ui_file_rewind (data->buffer);
}
/* initalize private members at startup */
struct ui_out *
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mi_out_new (int mi_version)
{
int flags = 0;
struct ui_out_data *data = XMALLOC (struct ui_out_data);
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data->suppress_field_separator = 0;
data->suppress_output = 0;
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data->mi_version = mi_version;
/* FIXME: This code should be using a ``string_file'' and not the
TUI buffer hack. */
data->buffer = mem_fileopen ();
return ui_out_new (&mi_ui_out_impl, data, flags);
}
/* standard gdb initialization hook */
void
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_initialize_mi_out (void)
{
/* nothing happens here */
}