gcc/graphviz.cc

   1 /* Helper code for graphviz output.
   2    Copyright (C) 2019-2023 Free Software Foundation, Inc.
   3    Contributed by David Malcolm <dmalcolm@redhat.com>.
   4
   5 This file is part of GCC.
   6
   7 GCC is free software; you can redistribute it and/or modify it
   8 under the terms of the GNU General Public License as published by
   9 the Free Software Foundation; either version 3, or (at your option)
  10 any later version.
  11
  12 GCC is distributed in the hope that it will be useful, but
  13 WITHOUT ANY WARRANTY; without even the implied warranty of
  14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15 General Public License for more details.
  16
  17 You should have received a copy of the GNU General Public License
  18 along with GCC; see the file COPYING3.  If not see
  19 <http://www.gnu.org/licenses/>.  */
  20
  21 #include "config.h"
  22 #include "system.h"
  23 #include "coretypes.h"
  24 #include "graphviz.h"
  25
  26 /* graphviz_out's ctor, wrapping PP.  */
  27
  28 graphviz_out::graphviz_out (pretty_printer *pp)
  29 : m_pp (pp),
  30   m_indent (0)
  31 {
  32 }
  33
  34 /* Formatted print of FMT.  */
  35
  36 void
  37 graphviz_out::print (const char *fmt, ...)
  38 {
  39   va_list ap;
  40
  41   va_start (ap, fmt);
  42   text_info text (fmt, &ap, errno);
  43   pp_format (m_pp, &text);
  44   pp_output_formatted_text (m_pp);
  45   va_end (ap);
  46 }
  47
  48 /* Formatted print of FMT.  The text is indented by the current
  49    indent, and a newline is added.  */
  50
  51 void
  52 graphviz_out::println (const char *fmt, ...)
  53 {
  54   va_list ap;
  55
  56   write_indent ();
  57
  58   va_start (ap, fmt);
  59   text_info text (fmt, &ap, errno);
  60   pp_format (m_pp, &text);
  61   pp_output_formatted_text (m_pp);
  62   va_end (ap);
  63
  64   pp_newline (m_pp);
  65 }
  66
  67 /* Print the current indent to the underlying pp.  */
  68
  69 void
  70 graphviz_out::write_indent ()
  71 {
  72   for (int i = 0; i < m_indent * 2; ++i)
  73     pp_space (m_pp);
  74 }
  75
  76 /* Write the start of an HTML-like row via <TR>, writing to the stream
  77    so that followup text can be escaped.  */
  78
  79 void
  80 graphviz_out::begin_tr ()
  81 {
  82   pp_string (m_pp, "<TR>");
  83   pp_write_text_to_stream (m_pp);
  84 }
  85
  86 /* Write the end of an HTML-like row via </TR>, writing to the stream
  87    so that followup text can be escaped.  */
  88
  89 void
  90 graphviz_out::end_tr ()
  91 {
  92   pp_string (m_pp, "</TR>");
  93   pp_write_text_to_stream (m_pp);
  94 }
  95
  96 /* Write the start of an HTML-like <TD>, writing to the stream
  97    so that followup text can be escaped.  */
  98
  99 void
 100 graphviz_out::begin_td ()
 101 {
 102   pp_string (m_pp, "<TD ALIGN=\"LEFT\">");
 103   pp_write_text_to_stream (m_pp);
 104 }
 105
 106 /* Write the end of an HTML-like </TD>, writing to the stream
 107    so that followup text can be escaped.  */
 108
 109 void
 110 graphviz_out::end_td ()
 111 {
 112   pp_string (m_pp, "</TD>");
 113   pp_write_text_to_stream (m_pp);
 114 }
 115
 116 /* Write the start of an HTML-like row via <TR><TD>, writing to the stream
 117    so that followup text can be escaped.  */
 118
 119 void
 120 graphviz_out::begin_trtd ()
 121 {
 122   pp_string (m_pp, "<TR><TD ALIGN=\"LEFT\">");
 123   pp_write_text_to_stream (m_pp);
 124 }
 125
 126 /* Write the end of an HTML-like row via </TD></TR>, writing to the stream
 127    so that followup text can be escaped.  */
 128
 129 void
 130 graphviz_out::end_tdtr ()
 131 {
 132   pp_string (m_pp, "</TD></TR>");
 133   pp_write_text_to_stream (m_pp);
 134 }