binutils/demanguse.c

   1 /* demanguse.c -- libiberty demangler usage
   2    Copyright (C) 2021-2022 Free Software Foundation, Inc.
   3
   4    This file is part of GNU Binutils.
   5
   6    This program is free software; you can redistribute it and/or modify
   7    it under the terms of the GNU General Public License as published by
   8    the Free Software Foundation; either version 3 of the License, or
   9    (at your option) any later version.
  10
  11    This program is distributed in the hope that it will be useful,
  12    but WITHOUT ANY WARRANTY; without even the implied warranty of
  13    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14    GNU General Public License for more details.
  15
  16    You should have received a copy of the GNU General Public License
  17    along with this program; if not, write to the Free Software
  18    Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA
  19    02110-1301, USA.  */
  20
  21 #include <stdio.h>
  22 #include <string.h>
  23 #include "demangle.h"
  24 #include "demanguse.h"
  25
  26 /* Print the list of demangling styles to STREAM.  A one line MSG is
  27    printed before the styles.  Output is limited to 80 columns, with
  28    continuation lines being indented by leading spaces in MSG.  */
  29
  30 void
  31 display_demangler_styles (FILE *stream, const char *msg)
  32 {
  33   const struct demangler_engine *info = libiberty_demanglers;
  34   int col;
  35   int lead_spaces = 0;
  36   const char *cont = "";
  37
  38   while (msg[lead_spaces] == ' ')
  39     ++lead_spaces;
  40   col = fprintf (stream, "%s", msg);
  41   while (info->demangling_style_name)
  42     {
  43       if (col + strlen (info->demangling_style_name) >= 75)
  44         {
  45           fprintf (stream, "%.1s\n", cont);
  46           col = fprintf (stream, "%.*s", lead_spaces, msg);
  47           cont = "";
  48         }
  49       col += fprintf (stream, "%s\"%s\"", cont, info->demangling_style_name);
  50       cont = ", ";
  51       ++info;
  52     }
  53   fprintf (stream, "\n");
  54 }