lily/input.cc

   1 /*
   2   This file is part of LilyPond, the GNU music typesetter.
   3
   4   Copyright (C) 1997--2011 Han-Wen Nienhuys <hanwen@xs4all.nl>
   5
   6   LilyPond 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   LilyPond 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 LilyPond.  If not, see <http://www.gnu.org/licenses/>.
  18 */
  19
  20 #include "input.hh"
  21
  22 #include <cstdio>
  23 using namespace std;
  24
  25 #include "international.hh"
  26 #include "program-option.hh"
  27 #include "source-file.hh"
  28 #include "sources.hh"
  29 #include "warn.hh"
  30
  31 Input::Input (Input const &i)
  32 {
  33   source_file_ = i.source_file_;
  34   start_ = i.start_;
  35   end_ = i.end_;
  36 }
  37
  38 Input::Input ()
  39 {
  40   source_file_ = 0;
  41   start_ = 0;
  42   end_ = 0;
  43 }
  44
  45 Input
  46 Input::spot () const
  47 {
  48   return *this;
  49 }
  50
  51 void
  52 Input::set_spot (Input const &i)
  53 {
  54   *this = i;
  55 }
  56
  57 void
  58 Input::step_forward ()
  59 {
  60   if (end_ == start_)
  61     end_++;
  62   start_++;
  63 }
  64
  65 void
  66 Input::set_location (Input const &i_start, Input const &i_end)
  67 {
  68   source_file_ = i_start.source_file_;
  69   start_ = i_start.start_;
  70   end_ = i_end.end_;
  71 }
  72
  73 /*
  74   Produce GNU-compliant error message.  Correcting lilypond source is
  75   such a breeze if you ('re edidor) know (s) the error column too
  76
  77   Format:
  78
  79   [file:line:column:][warning:]message
  80 */
  81 void
  82 Input::message (string s) const
  83 {
  84   if (source_file_)
  85     s = location_string () + ": " + s + "\n"
  86       + source_file_->quote_input (start_) + "\n";
  87   ::message (s);
  88 }
  89
  90
  91 void
  92 Input::programming_error (string s) const
  93 {
  94   if (get_program_option ("warning-as-error"))
  95     ::error (s);
  96   else {
  97     message (_f ("programming error: %s", s.c_str ()));
  98     message (_ ("continuing, cross fingers") + "\n");
  99   }
 100 }
 101
 102
 103 void
 104 Input::warning (string s) const
 105 {
 106   if (get_program_option ("warning-as-error"))
 107     ::error (s);
 108   else
 109     message (_f ("warning: %s", s));
 110 }
 111
 112 void
 113 Input::error (string s) const
 114 {
 115   message (_f ("error: %s", s));
 116   // UGH, fix naming or usage
 117   // exit (1);
 118 }
 119
 120 void
 121 Input::non_fatal_error (string s) const
 122 {
 123   message (_f ("error: %s", s));
 124 }
 125
 126 string
 127 Input::location_string () const
 128 {
 129   if (source_file_)
 130     return source_file_->file_line_column_string (start_);
 131   return " (" + _ ("position unknown") + ")";
 132 }
 133
 134 string
 135 Input::line_number_string () const
 136 {
 137   if (source_file_)
 138     return to_string (source_file_->get_line (start_));
 139   return "?";
 140 }
 141
 142 string
 143 Input::file_string () const
 144 {
 145   if (source_file_)
 146     return source_file_->name_string ();
 147   return "";
 148 }
 149
 150 int
 151 Input::line_number () const
 152 {
 153   if (source_file_)
 154     return source_file_->get_line (start_);
 155   return 0;
 156 }
 157
 158 int
 159 Input::column_number () const
 160 {
 161   int line, chr, col, offset = 0;
 162   source_file_->get_counts (start_, &line, &chr, &col, &offset);
 163
 164   return col;
 165 }
 166
 167 int
 168 Input::end_line_number () const
 169 {
 170   if (source_file_)
 171     return source_file_->get_line (end_);
 172   return 0;
 173 }
 174
 175 int
 176 Input::end_column_number () const
 177 {
 178   int line, chr, col, offset = 0;
 179   source_file_->get_counts (end_, &line, &chr, &col, &offset);
 180
 181   return col;
 182 }
 183
 184 void
 185 Input::get_counts (int *line, int *chr, int *col, int *offset) const
 186 {
 187   source_file_->get_counts (start_, line, chr, col, offset);
 188 }
 189
 190 void
 191 Input::set (Source_file *sf, char const *start, char const *end)
 192 {
 193   source_file_ = sf;
 194   start_ = start;
 195   end_ = end;
 196 }
 197
 198 Source_file *
 199 Input::get_source_file () const
 200 {
 201   return source_file_;
 202 }
 203
 204 char const *
 205 Input::start () const
 206 {
 207   return start_;
 208 }
 209
 210 char const *
 211 Input::end () const
 212 {
 213   return end_;
 214 }