lily/input.cc

   1 /*
   2   input.cc -- implement Input
   3
   4   source file of the LilyPond music typesetter
   5
   6   (c) 1997--2009 Han-Wen Nienhuys <hanwen@xs4all.nl>
   7 */
   8
   9 #include "input.hh"
  10
  11 #include <cstdio>
  12 using namespace std;
  13
  14 #include "international.hh"
  15 #include "program-option.hh"
  16 #include "source-file.hh"
  17 #include "sources.hh"
  18 #include "warn.hh"
  19
  20 Input::Input (Input const &i)
  21 {
  22   source_file_ = i.source_file_;
  23   start_ = i.start_;
  24   end_ = i.end_;
  25 }
  26
  27 Input::Input ()
  28 {
  29   source_file_ = 0;
  30   start_ = 0;
  31   end_ = 0;
  32 }
  33
  34 Input
  35 Input::spot () const
  36 {
  37   return *this;
  38 }
  39
  40 void
  41 Input::set_spot (Input const &i)
  42 {
  43   *this = i;
  44 }
  45
  46 void
  47 Input::step_forward ()
  48 {
  49   if (end_ == start_)
  50     end_++;
  51   start_++;
  52 }
  53
  54 void
  55 Input::set_location (Input const &i_start, Input const &i_end)
  56 {
  57   source_file_ = i_start.source_file_;
  58   start_ = i_start.start_;
  59   end_ = i_end.end_;
  60 }
  61
  62 /*
  63   Produce GNU-compliant error message.  Correcting lilypond source is
  64   such a breeze if you ('re edidor) know (s) the error column too
  65
  66   Format:
  67
  68   [file:line:column:][warning:]message
  69 */
  70 void
  71 Input::message (string s) const
  72 {
  73   if (source_file_)
  74     s = location_string () + ": " + s + "\n"
  75       + source_file_->quote_input (start_) + "\n";
  76   ::message (s);
  77 }
  78
  79
  80 void
  81 Input::programming_error (string s) const
  82 {
  83   if (get_program_option ("warning-as-error"))
  84     ::error (s);
  85   else {
  86     message (_f ("programming error: %s", s.c_str ()));
  87     message (_ ("continuing, cross fingers") + "\n");
  88   }
  89 }
  90
  91
  92 void
  93 Input::warning (string s) const
  94 {
  95   if (get_program_option ("warning-as-error"))
  96     ::error (s);
  97   else
  98     message (_f ("warning: %s", s));
  99 }
 100
 101 void
 102 Input::error (string s) const
 103 {
 104   message (_f ("error: %s", s));
 105   // UGH, fix naming or usage
 106   // exit (1);
 107 }
 108
 109 void
 110 Input::non_fatal_error (string s) const
 111 {
 112   message (_f ("error: %s", s));
 113 }
 114
 115 string
 116 Input::location_string () const
 117 {
 118   if (source_file_)
 119     return source_file_->file_line_column_string (start_);
 120   return " (" + _ ("position unknown") + ")";
 121 }
 122
 123 string
 124 Input::line_number_string () const
 125 {
 126   if (source_file_)
 127     return to_string (source_file_->get_line (start_));
 128   return "?";
 129 }
 130
 131 string
 132 Input::file_string () const
 133 {
 134   if (source_file_)
 135     return source_file_->name_string ();
 136   return "";
 137 }
 138
 139 int
 140 Input::line_number () const
 141 {
 142   if (source_file_)
 143     return source_file_->get_line (start_);
 144   return 0;
 145 }
 146
 147 int
 148 Input::column_number () const
 149 {
 150   int line, chr, col, offset = 0;
 151   source_file_->get_counts (start_, &line, &chr, &col, &offset);
 152
 153   return col;
 154 }
 155
 156 int
 157 Input::end_line_number () const
 158 {
 159   if (source_file_)
 160     return source_file_->get_line (end_);
 161   return 0;
 162 }
 163
 164 int
 165 Input::end_column_number () const
 166 {
 167   int line, chr, col, offset = 0;
 168   source_file_->get_counts (end_, &line, &chr, &col, &offset);
 169
 170   return col;
 171 }
 172
 173 void
 174 Input::get_counts (int *line, int *chr, int *col, int *offset) const
 175 {
 176   source_file_->get_counts (start_, line, chr, col, offset);
 177 }
 178
 179 void
 180 Input::set (Source_file *sf, char const *start, char const *end)
 181 {
 182   source_file_ = sf;
 183   start_ = start;
 184   end_ = end;
 185 }
 186
 187 Source_file *
 188 Input::get_source_file () const
 189 {
 190   return source_file_;
 191 }
 192
 193 char const *
 194 Input::start () const
 195 {
 196   return start_;
 197 }
 198
 199 char const *
 200 Input::end () const
 201 {
 202   return end_;
 203 }