2022.01.28

VERSION

@@ -1,2 +1,2 @@
-2021 September 15 2021
+2022 January 27 2022
 

abcmatch.c

@@ -49,7 +49,7 @@ Matching:
 
 
 
-#define VERSION "1.79 May 25 2021 abcmatch"
+#define VERSION "1.80 Novemeber 25 2021 abcmatch"
 #include <stdio.h>
 #include <stdlib.h>
 #include <ctype.h>
@@ -274,7 +274,7 @@ make_note_representation (int *nnotes, int *nbars, int maxnotes, int maxbars,
    these bar line indications. Note bar numbering starts
    from 0. [SS] 2013-11-17
 */
-          if (*nbars >0 && *nnotes > 0) { /* 2021-03-27 */
+          if (*nnotes > 0) {  /* [SS] 2021-11-25 */
 	    midipitch[*nnotes] = BAR;
 	    notelength[*nnotes] = BAR;
 	    (*nnotes)++;

doc/CHANGES

@@ -14379,3 +14379,214 @@ The chord associated with the 'b' gchord code was missing. b and f
 codes were indistinguishable. Fix: removed the break in the switch
 statement for case b:
 
+
+October 11 2021
+
+abc2midi new feature:
+In compliance with the ABC draft standard 2.2, I introduced additional
+K: and V: options for transposition. You can now indicate the number
+of semitones to transpose by giving the original note and the 
+corresponding transposed note in the K: or V: field using either
+shift = note1note2
+sound = note1note2
+instrument = note1/note2
+The number of semitones is determined by the difference note2 - note1.
+
+Abcm2ps and abc2svg recognize this command, but abc2abc, yaps, and
+abcmatch ignore this new option.
+
+http://abcnotation.com/wiki/abc:standard:v2.2#transposition
+
+Here is a test sample:
+
+X:1
+T: standard 2.2 transposition
+M: 4/4
+L: 1/4
+K: C  
+V:1 
+Bcde|Bcde|
+V:2
+Bcde|Bcde|
+V:1 shift = Bc
+Bcde|Bcde|
+V:2
+Bcde|Bcde|
+V:1 sound = dc
+Bcde|Bcde|
+V:2
+Bcde|Bcde|
+V:1 instrument = c/^D
+Bcde|Bcde|
+V:2
+Bcde|Bcde|
+V:1 transpose = 0
+Bcde|Bcde|
+V:2 shift=DE,
+Bcde|Bcde|
+
+
+October 15 2021
+
+Abc2abc -P bug
+
+
+
+X:1
+T: P bug
+M:4/4
+L:1/4
+V:1 clef=treble
+V:2 clef=bass
+%%staves [1 2]
+K:C
+V:1
+C2 D2  |  C4 |
+V:2
+C,2 G,2 | C,4|
+
+The command
+abc2abc t.abc -t 3 -P 1
+fails to transpose voice 1
+
+This bug has been around since this option was introduced in June 7 2011.
+Fortunately, it has not bothered anyone until recently.
+If you add another K:c after the first V:1 command in the body as
+shown below.
+
+X:1
+T: P bug
+M:4/4
+L:1/4
+V:1 clef=treble
+V:2 clef=bass
+%%staves [1 2]
+K:C
+V:1
+K:C
+C2 D2  |  C4 |
+V:2
+C,2 G,2 | C,4|
+
+then voice 1 will be transposed correctly. Unfortunately, there is
+no easy fix. When the -P option is present, abc2abc ignores the
+first K: field command. (In toabc.c line 1643 event_key aborts
+prior to setting up the arrays for a key transpose. Commenting
+out this return statement introduces another problem.)
+
+The main issue is that abc2abc only does one pass through the
+input file. It does not know whether there is a K: field command
+following V:1. If it assumes that there is none and forces a
+call to event_key in event_voice, there may be another problem
+when a different K: field command is found eventually. I have
+decided to suspend support to the -P option because it would be
+too complicated to fix this.
+
+
+November 25 2021
+
+abcmatch bug. The fix on 2021-03-27 made abcmatch non-operable. The
+number of bars *nbars is never incremented. The line was replaced
+with
+if (*nnotes > 0) { /* [SS] 2021-11-25 */
+in the function make_note_representation(...)
+
+
+December 05 2021
+
+abc2midi new feature. Abc2midi did not recognize double flats or double sharps
+in the gchord. For example
+
+X:1
+T: Double flat gchord
+M: 4/4
+L: 1/4
+K: C
+"Dbb" C4| C4 |
+
+returns the error message
+Error in line-char 6-0 : Unrecognized chord name "b"
+(Hint: use %MIDI chordname to define it. eg %MIDI chordname sus4 0 4 7).
+
+Fix: in event_handle_gchord in store.c, now check for a double accidental.
+
+
+December 10 2021
+
+abc2midi: introduced gchord elements k and K. A gchord string can
+contain and of the letters in zcfbghijkGHIJKx. Note that the chord
+elements j,J,k,K are only defined for gchords with 4 or 5 notes like
+M9 or M11. Here is a test example.
+
+X:1
+T: Gchord string
+M: 4/4
+L: 1/4
+K: C
+%%MIDI chordname x 0 3 5 7 9
+%%MIDI gchord fGHIJK
+"C11" C4 | C4 |
+"Cx"  C4 | C4|
+"C11/E" C4 | C4|
+"C11/G" C4 | C4|
+"C11/B" C4 | C4|
+
+
+December 12 2021
+
+abcmidi: changed bar length warning as suggested by James Allwright.
+
+
+January 13 2022
+
+abc2midi: stack overflow bugs reported by Kolja Grassmann
+<koljagrassman@mailbox.org>
+
+static int getword(place,w) in genmidi.c
+check that the syllable[200] array is not overrun
+in the while loop ((syllastus != postword)...) add && (i<199)
+
+static void karaokestarttrack in genmidi.c
+replace strcpy(atitle+2,atext[pitch[j]])
+with strncpy(atitle+2,atext[pitch[j]], 197)
+to prevent overflowing the atitle[200] array
+in three places.
+
+static int inlist(place, passno) in genmidi.c
+To prevent stack overflow in msg[100];
+use snprintf instead of sprintf
+snprintf(msg, 100, "Bad variant list : %s", atext[pitch[place]]);
+
+void event_handle_instruction(s) in store.c
+To prevent overrunning the array buff[MAXLINE]
+used snprintf instead of sprintf
+ snprintf(buff, MAXLINE, "instruction !%s! ignored", s);
+
+void event_info_key(key, value) in store.c
+To prevent overrunning the array errmsg[80]
+used snprintf instead of sprintf
+snprintf(errmsg, 80, "I: key \' %s\' not recognized", key);
+
+
+January 27 2022
+
+abcmidi: new feature
+%%MIDI pitchbendrange semi
+maps the pitchwheel 0 to 16383 to semi semitones. By default semi
+is set to 2. If you change it to 4, then the pitchwheel maps into
++/-4 semitones. This effects all microtones in the active channel
+when semi is not 2. %%MIDI temperament commands may not work
+correctly. Here is an example.
+
+X:1
+T: pitch bend with RPN
+M: 4/4
+L: 1/4
+K: G
+%%MIDI program 70
+G2 B2 |\
+%%MIDI bendstring 500 500 500 500 500 500 500 500 500 500 500 500 500 500 500 500 500 500
+!bend! G4 |\
+%%MIDI pitchbendrange 7
+!bend! G4 |
+

doc/readme.txt

@@ -1,10 +1,10 @@
 abcMIDI :   abc <-> MIDI conversion utilities
 
 midi2abc version 3.48 June 27 2021
-abc2midi version 4.60 September 15 2021
+abc2midi version 4.66 January 27 2022
 abc2abc  version 2.15 May 25 2021
 yaps     version 1.87 May 25 2021
-abcmatch version 1.79 May 25 2021
+abcmatch version 1.80 November 25 2021
 midicopy version 1.37 October 10 2020
 
 24th January 2002
@@ -14,7 +14,7 @@ J.R.Allwright@westminster.ac.uk
 University of Westminster,
 London, UK
 
-June 2021
+October 2021
 
 Seymour Shlien
 Ottawa, Canada

genmidi.c

@@ -31,8 +31,11 @@
 /* for Microsoft Visual C++ Ver 6 and higher */
 #ifdef _MSC_VER
 #define ANSILIBS
+#define snprintf _snprintf
+#define strncasecmp strnicmp
 #endif
 
+
 #include "abc.h"
 #include "parseabc.h"
 #include "queues.h"
@@ -398,7 +401,8 @@ char* s;
   p = s;
   j = 0;
   seq_len = 0;
-    while ((strchr("zcfbghijGHIJx", *p) != NULL) && (j <39)) {
+    /* [SS] 2021-12-10 */
+    while ((strchr("zcfbghijkGHIJKx", *p) != NULL) && (j <39)) {
     if (*p == 0) break;
     gchord_seq[j] = *p;
     p = p + 1;
@@ -530,7 +534,7 @@ int pass;
         if (bar_denom != 1) {
           sprintf(msg+strlen(msg), "/%d", bar_denom);
         };
-        sprintf(msg+strlen(msg), " units instead of %d", barsize);
+        sprintf(msg+strlen(msg), " time units while the time signature has %d", barsize);
         if (pass == 2) {
           strcat(msg, " in repeat");
         };
@@ -810,17 +814,17 @@ int track;
      if (feature[j] == TITLE) {
         if (track != 2)
            mf_write_meta_event(0L, sequence_name, atext[pitch[j]], strlen (atext[pitch[j]]));
-        strcpy(atitle+2, atext[pitch[j]]);
+        strncpy(atitle+2, atext[pitch[j]], 197); /* [KG] 2022-01-13 stack overflow bug */
         text_data(atitle);
         done--;
      }
      if (feature[j] == COMPOSER) {
-        strcpy(atitle+2, atext[pitch[j]]);
+        strncpy(atitle+2, atext[pitch[j]], 197); /* [KG] 2022-01-13 stack overflow bug */
         text_data(atitle);
         done--;
      }     
      if (feature[j] == COPYRIGHT) {
-        strcpy(atitle+2, atext[pitch[j]]);
+        strcpy(atitle+2, atext[pitch[j]]); /* [KG] 2022-01-13 stack overflow bug */
         text_data(atitle);
         done--;
      }
@@ -965,7 +969,8 @@ int w;
   syllstatus = empty;
   c = *(words[w]+(*place));
   isBig5 = 0;  /* [BI] 2012-10-03 */
-  while ((syllstatus != postword) && (syllstatus != failed)) {
+  while ((syllstatus != postword) && (syllstatus != failed) && (i<199)) {
+  /* [KG] 2022-01-13 stack overflow bug fix */
   syllable[i] = c;
     /* printf("syllstatus = %d c = %c i = %d place = %d row= %d \n",syllstatus,c,i,*place,w); */
 	if (isBig5) { /* [BI] 2012-10-03 */
@@ -1251,7 +1256,8 @@ int passno;
     found = 0;
     while ((found == 0) && (*p != '\0')) {
       if (!isdigit(*p)) {
-        sprintf(msg, "Bad variant list : %s", atext[pitch[place]]);
+        snprintf(msg, 100, "Bad variant list : %s", atext[pitch[place]]);
+/* [KG] 2022-01-13 stack overflow bug */
         event_error(msg);
         found = 1;
       };
@@ -1414,8 +1420,6 @@ static void midi_re_tune (int channel) {
    this is done.
 */
 char data[2];
-data[0] = (char) (bend & 0x7f); /* least significant bits */
-data[1] = (char) ((bend >>7) & 0x7f);
 /* indicate that we are applying RPN fine and gross tuning using
    the following two control commands. 
    control 101 0  
@@ -1438,6 +1442,29 @@ data[1] = (char) (bend & 0x7f); /* least significant bits */
 write_event(control_change, channel, data, 2);
 } 
 
+/* [SS] 2022-01-27 */
+static void midiPitchBendRange (int semis) {
+/* by default the pitch wheel maps 0 to 16383 to a range of 4
+ * semitones. This function uses the RPN control command to
+ * expand the range to semis semitones.
+ */ 
+char data[2];
+/* indicate that we are applying RPN fine and gross tuning using
+   the following two control commands. 
+   control 101 0  
+   control 100 0 */
+data[0] = 101; /* RPN command */
+data[1] = 0;   /* type of command */
+write_event(control_change, channel, data, 2);
+data[0] = 6; /* contains most significant byte */
+data[1] = semis;
+write_event(control_change, channel, data, 2);
+data[0] = 38; /* contains least significant byte (range in cents) */
+data[1] = 0;
+write_event(control_change, channel, data, 2);
+}
+
+
 
 
 /* [SS] 2011-07-04 */
@@ -2094,6 +2121,14 @@ int noteson;
      else bendtype = 2;
      }
 
+  /* [SS] 2022-01-27 */
+  else if (strcmp(command, "pitchbendrange") == 0) {
+     int semis;
+     semis = readsnump(&p);
+     midiPitchBendRange(semis);
+     done = 1;
+     }
+
 
   else if (strcmp(command, "drone") == 0) {
     skipspace(&p);
@@ -2453,6 +2488,13 @@ int j;
         save_note(g_num*len, g_denom, gchordnotes[gchordnotes_size], 8192, gchord.chan, gchord.vel); 
       break;
 
+    /* [SS] 2021-12-10 */
+    case 'k':
+      if(gchordnotes_size >4 && g_started && gchords)
+        save_note(g_num*len, g_denom, gchordnotes[4], 8192, gchord.chan, gchord.vel); 
+      else /* [SS] 2016-01-03 */
+        save_note(g_num*len, g_denom, gchordnotes[gchordnotes_size], 8192, gchord.chan, gchord.vel); 
+
     case 'G':
       if(gchordnotes_size>0 && g_started && gchords)
         save_note(g_num*len, g_denom, gchordnotes[0]-12, 8192, gchord.chan, gchord.vel); 
@@ -2481,6 +2523,14 @@ int j;
         save_note(g_num*len, g_denom, gchordnotes[gchordnotes_size], 8192, gchord.chan, gchord.vel); 
       break;
 
+    /* [SS] 2021-12-10 */
+    case 'K':
+      if(gchordnotes_size >3 && g_started && gchords)
+        save_note(g_num*len, g_denom, gchordnotes[4]-12, 8192, gchord.chan, gchord.vel); 
+      else /* [SS] 2016-01-03 */
+        save_note(g_num*len, g_denom, gchordnotes[gchordnotes_size], 8192, gchord.chan, gchord.vel); 
+      break;
+
     case 'x':
       if(!gchord_error) {
          gchord_error++;

parseabc.c

@@ -81,6 +81,7 @@ extern char *malloc ();
 extern char *strchr ();
 #endif
 
+int note2midi (char** s); 
 int lineno;
 int parsing_started = 0;
 int parsing, slur;
@@ -939,8 +940,8 @@ int interpret_voice_label (char *s, int num, int *is_new)
   return num_voices;
 }
 
-/* The following three functions parseclefs, parsetranspose,
+/* The following four functions parseclefs, parsetranspose,
- * parseoctave are used to parse the K: field which not
+ * parsesound, parseoctave are used to parse the K: field which not
  * only specifies the key signature but also other descriptors
  * used for producing a midi file or postscript file.
  *
@@ -1019,6 +1020,49 @@ parsetranspose (s, word, gottranspose, transpose)
   return 1;
 };
 
+/* [SS] 2021-10-11 */
+int
+parsesound (s, word, gottranspose, transpose)
+/* parses string sound = 
+                 shift =
+                 instrument = note1note2 or note1/note2
+  for parsekey() or parsevoice()
+  and returns the transpose value
+*/
+     char **s;
+     char *word;
+     int *gottranspose;
+     int *transpose;
+  {   
+  int p1,p2;
+  if (casecmp(word,"sound") != 0
+     && casecmp(word,"shift") != 0
+     && casecmp(word,"instrument") != 0
+     )
+    return 0;
+  skipspace (s);
+  if (**s != '=')
+    {
+      event_error ("sound must be followed by '='");
+     return 0;
+     } else {
+      *s = *s + 1;
+      skipspace (s);
+      p1 = note2midi (s);
+      /* printf("midi note = %d\n",p1); */
+      p2 = note2midi (s);
+      if (p2 == p1) {
+          *gottranspose = 0;
+          *transpose = 0;
+          } else {
+          /* printf("midi note = %d\n",p2); */
+          *transpose = p2 - p1; 
+          /* printf("transpose = %d\n",*transpose); */
+          *gottranspose = 1;
+          }
+     }
+  return 1;
+  }
 
 int
 parseoctave (s, word, gotoctave, octave)
@@ -1382,6 +1426,9 @@ parsekey (str)
       if (!parsed)
 	parsed = parseoctave (&s, word, &gotoctave, &octave);
 
+      if (!parsed)
+        parsed = parsesound (&s, word, &gottranspose, &transpose);
+
       if ((parsed == 0) && (casecmp (word, "Hp") == 0))
 	{
 	  sf = 2;
@@ -1623,6 +1670,8 @@ parsevoice (s)
 			  &vparams.transpose);
       if (!parsed)
 	parsed = parseoctave (&s, word, &vparams.gotoctave, &vparams.octave);
+      if (!parsed)
+        parsed = parsesound (&s, word, &vparams.gottranspose, &vparams.transpose);
       if (!parsed)
 	parsed =
 	  parsename (&s, word, &vparams.gotname, vparams.namestring,
@@ -2661,6 +2710,156 @@ static void check_and_call_bar(int bar_type, char *replist)
   event_bar (bar_type, replist);
 }
 
+
+/* [SS] 2021-10-11   */
+static int pitch2midi(note, accidental, mult, octave )
+/* computes MIDI pitch for note.
+*/
+char note, accidental;
+int mult, octave;
+{
+  int p;
+  char acc;
+  int mul, noteno;
+  int pitch;
+
+  static int scale[7] = {0, 2, 4, 5, 7, 9, 11};
+
+  static const char *anoctave = "cdefgab";
+  acc = accidental;
+  mul = mult;
+  noteno = (int)note - 'a';
+ 
+  p = (int) ((long) strchr(anoctave, note) - (long) anoctave);
+  p = scale[p];
+  if (acc == '^') p = p + mul;
+  if (acc == '_') p = p - mul;
+  p = p + 12*octave + 60;
+return p; 
+}
+
+
+
+/* [SS] 2021-10-11   */
+int
+note2midi (char** s)
+{
+/* for implementing sound=, shift= and instrument= key signature options */
+
+/* check for accidentals */
+char note, accidental;
+char msg[80];
+int octave;
+int mult;
+int pitch;
+/*printf("note2midi: %c\n",**s); */
+if (**s == '\0') return 72;
+mult = 1;
+accidental = ' ';
+switch (**s)
+    {
+    case '_':
+      accidental = **s;
+      *s = *s + 1;
+      if (**s == '_')
+        {
+          *s = *s + 1;
+          mult = 2;
+        };
+      break;
+    case '^':
+      accidental = **s;
+      *s = *s + 1;
+      if (**s == '^')
+        {
+          *s = *s + 1;
+          mult = 2;
+        };
+      break;
+    case '=':
+      accidental = **s;
+      *s = *s + 1;
+      break;
+    default:
+      break;
+    };
+
+  if ((**s >= 'a') && (**s <= 'g'))
+    {
+      note = **s;
+      octave = 1;
+      *s = *s + 1;
+      while ((**s == '\'') || (**s == ',') || (**s == '/'))
+        {
+          if (**s == '\'')
+            {
+              octave = octave + 1;
+              *s = *s + 1;
+            };
+          if (**s == ',')
+            {
+              sprintf (msg, "Bad pitch specifier , after note %c", note);
+              event_error (msg); 
+              octave = octave - 1;
+              *s = *s + 1;
+            };
+          if (**s == '/')
+             {
+             /* skip / which occurs in instrument = command */
+              *s = *s + 1;
+/*  printf("note = %c  accidental = %c mult = %d octave= %d \n",note,accidental,mult,octave); */
+              pitch = pitch2midi(note, accidental, mult, octave);
+              return pitch;
+              }
+        };
+    }
+  else
+    {
+      octave = 0;
+      if ((**s >= 'A') && (**s <= 'G'))
+        {
+          note = **s + 'a' - 'A';
+          *s = *s + 1;
+          while ((**s == '\'') || (**s == ',') || (**s == '/'))
+            {
+              if (**s == ',')
+                {
+                  octave = octave - 1;
+                  *s = *s + 1;
+                };
+              if (**s == '\'')
+                {
+                  sprintf (msg, "Bad pitch specifier ' after note %c",
+                           note + 'A' - 'a');
+                  event_error (msg); 
+                  octave = octave + 1;
+                  *s = *s + 1;
+                };
+          if (**s == '/')
+             {
+             /* skip / which occurs in instrument = command */
+              *s = *s + 1;
+/*  printf("note = %c  accidental = %c mult = %d octave= %d \n",note,accidental,mult,octave); */
+              pitch = pitch2midi(note, accidental, mult, octave);
+              return pitch;
+            };
+        };
+    };
+ /* printf("note = %c  accidental = %c mult = %d octave= %d \n",note,accidental,mult,octave); */
+  } 
+  if (note == ' ')
+    {
+      event_error ("Malformed note : expecting a-g or A-G");
+    }
+  pitch = pitch2midi(note, accidental, mult, octave);
+  return pitch;
+}
+
+
+
+
+
+
 void
 parsemusic (field)
      char *field;

store.c

@@ -186,7 +186,7 @@ int main()
 
 */
 
-#define VERSION "4.60 September 15 2021 abc2midi" 
+#define VERSION "4.66 January 27 2022 abc2midi" 
 
 /* enables reading V: indication in header */
 #define XTEN1 1
@@ -3171,7 +3171,8 @@ char* value;
   else if (is_abcm2ps_option (key)) return;
 
   else {
-    sprintf(errmsg,"I: key \' %s\' not recognized", key);
+    /* [KG] 2022-01-13 stack overflow */
+    snprintf(errmsg, 80, "I: key \' %s\' not recognized", key);
     if (quiet == -1 && silent == 0) event_error(errmsg); /* [SS] 2018-04-01 */
     }
 }
@@ -4494,13 +4495,15 @@ void event_handle_gchord(s)
 char* s;
 {
   int basepitch;
-  char accidental, note;
+  char accidental, accidental2, note; /* [SS] 2021-12-05 */
   char* p;
   char name[9];
   int i;
   int chordno;
   int bassnote;
   int inversion;
+  int mult;  /* [SS] 2021-12-05 */
+  mult = 1;
 
   if (ignore_guitarchords == 1) return; /* [SS] 2019-12-09 */
   if ((*s >= '0') && (*s <= '5')) {
@@ -4527,7 +4530,9 @@ char* s;
     };
   };
   p = get_accidental(p, &accidental);
-  basepitch = pitchof(note, accidental, 1, 0, 0) - middle_c;
+  p = get_accidental(p, &accidental2); /* [SS] 2021-12-05 */
+  if (accidental2 != '=') mult = 2;  /* [SS] 2021-12-05 */
+  basepitch = pitchof(note, accidental, mult, 0, 0) - middle_c;
   i = 0;
   while ((i<9) && (*p != ' ') && (*p != '\0') && (*p != '(')
                && (*p != '/') && (*p != ')')) {
@@ -4543,12 +4548,16 @@ char* s;
       note = (int)*p - 'A' + 'a';
       p = p + 1;
       p = get_accidental(p, &accidental);
-      inversion = pitchof(note, accidental, 1, 0, 0) - middle_c;
+      p = get_accidental(p, &accidental2); /* [SS] 2021-12-05 */
+      if (accidental2 != '=') mult = 2;  /* [SS] 2021-12-05 */
+      inversion = pitchof(note, accidental, mult, 0, 0) - middle_c;
     } else if ((*p >= 'a') && (*p <= 'g')) {
       note = (int)*p;
       p = p + 1;
       p = get_accidental(p, &accidental);
-      inversion = pitchof(note, accidental, 1, 0, 0) - middle_c;
+      p = get_accidental(p, &accidental2); /* [SS] 2021-12-05 */
+      if (accidental2 != '=') mult = 2;  /* [SS] 2021-12-05 */
+      inversion = pitchof(note, accidental, mult, 0, 0) - middle_c;
     } else if (!silent) {
       event_error(" / must be followed by A-G or a-g in gchord");
     };
@@ -4739,7 +4748,8 @@ if (nofnop == 0) {
    };
 
   if (done == 0 && quiet == -1) {    /* [SS] 2013-11-02 */
-    sprintf(buff, "instruction !%s! ignored", s);
+    snprintf(buff, MAXLINE, "instruction !%s! ignored", s);
+    /* [KG] 2022-01-13 static overflow */
     event_warning(buff);
   };
 }