note.cc

   1 #include <ctype.h>
   2 #include "string.hh"
   3 #include "real.hh"
   4 #include "debug.hh"
   5 #include "request.hh"
   6 #include "voice.hh"
   7 #include "notename.hh"
   8
   9 int default_duration = 4;
  10
  11 void
  12 parse_duration(const char *a, int &j, int &intdur, int &dots)
  13 {
  14     String durstr;
  15     while (isdigit(a[j]))
  16         {
  17         durstr += a[j++];
  18         }
  19
  20     dots=0;
  21
  22     while (a[j] == '.')
  23         {
  24         j++;
  25         dots++;
  26         }
  27     intdur = (durstr.len()) ?
  28         durstr.value():default_duration;
  29
  30     if (debug_flags & DEBUGTOKEN)
  31         mtor << "dur " << intdur << "dots " << dots<<eol;
  32 }
  33
  34
  35 void
  36 parse_pitch( const char *a, int &j, int &oct, bool & overide_acc,
  37              int & large, int & small)
  38 {
  39     // octave
  40  oct =0;
  41
  42     while (1)
  43         {
  44         if (a[j] == '\'')
  45             oct ++;
  46         else    if (a[j] == '`')
  47             oct --;
  48         else
  49             break;
  50         j++;
  51
  52         }
  53     if (debug_flags & DEBUGTOKEN) mtor << "oct " << oct;
  54
  55     // accidental
  56     overide_acc = false;
  57
  58     if (a[j] == '!')
  59         {
  60         overide_acc = true;
  61         j++;
  62         }
  63
  64     if (debug_flags & DEBUGTOKEN)
  65         mtor << "ov " << overide_acc;
  66
  67     // notename.
  68     String nm;
  69     while (isalpha(a[j]))
  70         {
  71         nm += a[j++];
  72         }
  73     if (isupper(nm[0]))
  74         {
  75         oct--;
  76         nm.lower();
  77         }
  78
  79
  80     lookup_notename(large,small,nm);
  81     if (debug_flags & DEBUGTOKEN)
  82         mtor << "int "<< large <<" "<<small<<" ";
  83 }
  84
  85
  86 Voice_element *
  87 get_note_element(String pitch, String durstr)
  88 {
  89     Voice_element*v = new Voice_element;
  90     int i=0;
  91
  92     int dur, dots;
  93     parse_duration(durstr, i, dur, dots);
  94     i=0;
  95
  96     Note_req * rq = new Note_req( v);
  97
  98     int oct, pit, acc;
  99     bool forceacc;
 100     parse_pitch(pitch, i, oct, forceacc, pit, acc);
 101
 102     rq->octave = oct;
 103     rq->accidental = acc;
 104     rq->forceacc = forceacc;
 105     rq->balltype = dur;
 106     rq->dots = dots;
 107
 108
 109     v->add(rq);
 110     return v;
 111 }
 112
 113 Voice_element *
 114 get_rest_element(String type, String durstr)
 115 {
 116     Voice_element*v = new Voice_element;
 117     int i=0;
 118
 119     int dur, dots;
 120     parse_duration(durstr, i, dur, dots);
 121     i=0;
 122
 123     Rest_req * rq = new Rest_req(v);
 124
 125     rq->balltype = dur;
 126     rq->dots = dots;
 127
 128     v->add(rq);
 129     return v;
 130 }