binutils-gdb/gdb/cli-out.c

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2000-02-03 05:14:45 +01:00
/* Output generating routines for GDB CLI.
Copyright 1999-2000 Free Software Foundation, Inc.
Contributed by Cygnus Solutions.
Written by Fernando Nasser for Cygnus.
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 "cli-out.h"
/* Convenience macro for allocting typesafe memory. */
#ifndef XMALLOC
#define XMALLOC(TYPE) (TYPE*) xmalloc (sizeof (TYPE))
#endif
struct ui_out_data
{
struct ui_file *stream;
};
/* These are the CLI output functions */
static void cli_table_begin (struct ui_out *uiout, int nbrofcols, char *tblid);
static void cli_table_body (struct ui_out *uiout);
static void cli_table_end (struct ui_out *uiout);
static void cli_table_header (struct ui_out *uiout, int width,
enum ui_align alig, char *colhdr);
static void cli_list_begin (struct ui_out *uiout, int list_flag, char *lstid);
static void cli_list_end (struct ui_out *uiout, int list_flag);
static void cli_field_int (struct ui_out *uiout, int fldno, int width,
enum ui_align alig, char *fldname, int value);
static void cli_field_skip (struct ui_out *uiout, int fldno, int width,
enum ui_align alig, char *fldname);
static void cli_field_string (struct ui_out *uiout, int fldno, int width,
enum ui_align alig, char *fldname,
const char *string);
static void cli_field_fmt (struct ui_out *uiout, int fldno,
int width, enum ui_align align,
char *fldname, char *format, va_list args);
static void cli_spaces (struct ui_out *uiout, int numspaces);
static void cli_text (struct ui_out *uiout, char *string);
static void cli_message (struct ui_out *uiout, int verbosity, char *format,
va_list args);
static void cli_wrap_hint (struct ui_out *uiout, char *identstring);
static void cli_flush (struct ui_out *uiout);
/* This is the CLI ui-out implementation functions vector */
/* FIXME: This can be initialized dynamically after default is set to
handle initial output in main.c */
static struct ui_out_impl cli_ui_out_impl =
{
cli_table_begin,
cli_table_body,
cli_table_end,
cli_table_header,
cli_list_begin,
cli_list_end,
cli_field_int,
cli_field_skip,
cli_field_string,
cli_field_fmt,
cli_spaces,
cli_text,
cli_message,
cli_wrap_hint,
cli_flush
};
/* Prototypes for local functions */
extern void _initialize_cli_out PARAMS ((void));
static void field_separator (void);
static void out_field_fmt (struct ui_out *uiout, int fldno, char *fldname,
char *format,...);
/* local variables */
/* (none yet) */
/* Mark beginning of a table */
void
cli_table_begin (uiout, nbrofcols, tblid)
struct ui_out *uiout;
int nbrofcols;
char *tblid;
{
}
/* Mark beginning of a table body */
void
cli_table_body (uiout)
struct ui_out *uiout;
{
/* first, close the table header line */
cli_text (uiout, "\n");
}
/* Mark end of a table */
void
cli_table_end (uiout)
struct ui_out *uiout;
{
}
/* Specify table header */
void
cli_table_header (uiout, width, alignment, colhdr)
struct ui_out *uiout;
int width;
enum ui_align alignment;
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char *colhdr;
{
cli_field_string (uiout, 0, width, alignment, 0, colhdr);
}
/* Mark beginning of a list */
void
cli_list_begin (uiout, list_flag, lstid)
struct ui_out *uiout;
int list_flag;
char *lstid;
{
}
/* Mark end of a list */
void
cli_list_end (uiout, list_flag)
struct ui_out *uiout;
int list_flag;
{
}
/* output an int field */
void
cli_field_int (uiout, fldno, width, alignment, fldname, value)
struct ui_out *uiout;
int fldno;
int width;
enum ui_align alignment;
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char *fldname;
int value;
{
char buffer[20]; /* FIXME: how many chars long a %d can become? */
sprintf (buffer, "%d", value);
cli_field_string (uiout, fldno, width, alignment, fldname, buffer);
}
/* used to ommit a field */
void
cli_field_skip (uiout, fldno, width, alignment, fldname)
struct ui_out *uiout;
int fldno;
int width;
enum ui_align alignment;
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char *fldname;
{
cli_field_string (uiout, fldno, width, alignment, fldname, "");
}
/* other specific cli_field_* end up here so alignment and field
separators are both handled by cli_field_string */
void
cli_field_string (struct ui_out *uiout,
int fldno,
int width,
enum ui_align align,
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char *fldname,
const char *string)
{
int before = 0;
int after = 0;
if ((align != ui_noalign) && string)
{
before = width - strlen (string);
if (before <= 0)
before = 0;
else
{
if (align == ui_right)
after = 0;
else if (align == ui_left)
{
after = before;
before = 0;
}
else
/* ui_center */
{
after = before / 2;
before -= after;
}
}
}
if (before)
ui_out_spaces (uiout, before);
if (string)
out_field_fmt (uiout, fldno, fldname, "%s", string);
if (after)
ui_out_spaces (uiout, after);
if (align != ui_noalign)
field_separator ();
}
/* This is the only field function that does not align */
void
cli_field_fmt (struct ui_out *uiout, int fldno,
int width, enum ui_align align,
char *fldname, char *format, va_list args)
{
struct ui_out_data *data = ui_out_data (uiout);
vfprintf_filtered (data->stream, format, args);
if (align != ui_noalign)
field_separator ();
}
void
cli_spaces (uiout, numspaces)
struct ui_out *uiout;
int numspaces;
{
struct ui_out_data *data = ui_out_data (uiout);
print_spaces_filtered (numspaces, data->stream);
}
void
cli_text (uiout, string)
struct ui_out *uiout;
char *string;
{
struct ui_out_data *data = ui_out_data (uiout);
fputs_filtered (string, data->stream);
}
void
cli_message (struct ui_out *uiout, int verbosity, char *format, va_list args)
{
struct ui_out_data *data = ui_out_data (uiout);
if (ui_out_get_verblvl (uiout) >= verbosity)
vfprintf_unfiltered (data->stream, format, args);
}
void
cli_wrap_hint (uiout, identstring)
struct ui_out *uiout;
char *identstring;
{
wrap_here (identstring);
}
void
cli_flush (uiout)
struct ui_out *uiout;
{
struct ui_out_data *data = ui_out_data (uiout);
gdb_flush (data->stream);
}
/* local functions */
/* Like cli_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;
va_start (args, format);
vfprintf_filtered (data->stream, format, args);
va_end (args);
}
/* access to ui_out format private members */
static void
field_separator ()
{
struct ui_out_data *data = ui_out_data (uiout);
fputc_filtered (' ', data->stream);
}
/* initalize private members at startup */
struct ui_out *
cli_out_new (struct ui_file *stream)
{
int flags = ui_source_list;
struct ui_out_data *data = XMALLOC (struct ui_out_data);
data->stream = stream;
return ui_out_new (&cli_ui_out_impl, data, flags);
}
/* standard gdb initialization hook */
void
_initialize_cli_out ()
{
/* nothing needs to be done */
}