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      1 /* Helper code for graphviz output.
      2    Copyright (C) 2019-2022 Free Software Foundation, Inc.
      3    Contributed by David Malcolm <dmalcolm (at) 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   text_info text;
     40   va_list ap;
     41 
     42   va_start (ap, fmt);
     43   text.err_no = errno;
     44   text.args_ptr = &ap;
     45   text.format_spec = fmt;
     46   pp_format (m_pp, &text);
     47   pp_output_formatted_text (m_pp);
     48   va_end (ap);
     49 }
     50 
     51 /* Formatted print of FMT.  The text is indented by the current
     52    indent, and a newline is added.  */
     53 
     54 void
     55 graphviz_out::println (const char *fmt, ...)
     56 {
     57   text_info text;
     58   va_list ap;
     59 
     60   write_indent ();
     61 
     62   va_start (ap, fmt);
     63   text.err_no = errno;
     64   text.args_ptr = &ap;
     65   text.format_spec = fmt;
     66   pp_format (m_pp, &text);
     67   pp_output_formatted_text (m_pp);
     68   va_end (ap);
     69 
     70   pp_newline (m_pp);
     71 }
     72 
     73 /* Print the current indent to the underlying pp.  */
     74 
     75 void
     76 graphviz_out::write_indent ()
     77 {
     78   for (int i = 0; i < m_indent * 2; ++i)
     79     pp_space (m_pp);
     80 }
     81 
     82 /* Write the start of an HTML-like row via <TR>, writing to the stream
     83    so that followup text can be escaped.  */
     84 
     85 void
     86 graphviz_out::begin_tr ()
     87 {
     88   pp_string (m_pp, "<TR>");
     89   pp_write_text_to_stream (m_pp);
     90 }
     91 
     92 /* Write the end of an HTML-like row via </TR>, writing to the stream
     93    so that followup text can be escaped.  */
     94 
     95 void
     96 graphviz_out::end_tr ()
     97 {
     98   pp_string (m_pp, "</TR>");
     99   pp_write_text_to_stream (m_pp);
    100 }
    101 
    102 /* Write the start of an HTML-like <TD>, writing to the stream
    103    so that followup text can be escaped.  */
    104 
    105 void
    106 graphviz_out::begin_td ()
    107 {
    108   pp_string (m_pp, "<TD ALIGN=\"LEFT\">");
    109   pp_write_text_to_stream (m_pp);
    110 }
    111 
    112 /* Write the end of an HTML-like </TD>, writing to the stream
    113    so that followup text can be escaped.  */
    114 
    115 void
    116 graphviz_out::end_td ()
    117 {
    118   pp_string (m_pp, "</TD>");
    119   pp_write_text_to_stream (m_pp);
    120 }
    121 
    122 /* Write the start of an HTML-like row via <TR><TD>, writing to the stream
    123    so that followup text can be escaped.  */
    124 
    125 void
    126 graphviz_out::begin_trtd ()
    127 {
    128   pp_string (m_pp, "<TR><TD ALIGN=\"LEFT\">");
    129   pp_write_text_to_stream (m_pp);
    130 }
    131 
    132 /* Write the end of an HTML-like row via </TD></TR>, writing to the stream
    133    so that followup text can be escaped.  */
    134 
    135 void
    136 graphviz_out::end_tdtr ()
    137 {
    138   pp_string (m_pp, "</TD></TR>");
    139   pp_write_text_to_stream (m_pp);
    140 }
    141