--- /dev/null
+
+/* Copyright (c) 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006 by Arkkra Enterprises */
+/* All rights reserved */
+
+/* functions for building up lists of GRPSYL structs,
+ * error checking them, etc. These functions are called at parse
+ * time from gram.y */
+
+
+#include <string.h>
+#include "defines.h"
+#include "structs.h"
+#include "globals.h"
+
+/* 1-line staff allows for default pitch on first chord of measure. However,
+ * at the time we are gathering note information, it may not be known whether
+ * we are on a 1-line staff or not, so it is temporarily set to PP_NO_PITCH,
+ * then later if we have a 1-line staff, it gets converted to default of C4 */
+#define DFLT_PITCH 'c'
+#define DFLT_OCT 4
+
+/* how many NOTE structs to allocate at a time. We don't know in advance
+ * how many we'll need, so get a bunch and realloc as necessary. */
+#define NOTE_CHUNK (4)
+
+static int Tuplet_state = NOITEM; /* current tuplet state */
+static struct GRPSYL *Tuplet_list_p; /* first GRPSYL in a tuplet group */
+static short Slur_begin; /* slurtolist index at which <> began */
+
+/* static functions */
+static void clone_notelist P((struct GRPSYL *new_p, struct GRPSYL *old_p,
+ int copy_acc_etc));
+static void finish_bar P((void));
+static void restart_bar P((void));
+static void fix_grpsyl_list P((struct MAINLL *mainll_item_p));
+static void fix_a_group_list P((struct GRPSYL *grpsyllist_p, int staffno,
+ int vno, char *fname, int lineno, int mrptnum,
+ struct TIMEDSSV * tssv_p));
+static void chk_a_syl_list P((struct GRPSYL *grpsyl_p, char *fname,
+ int lineno));
+
+/* change relative octaves to absolute */
+static void resolve_octaves P((struct GRPSYL *grpsyl_item_p,
+ int default_octave));
+static void fix_frets P((struct GRPSYL *grpsyl_item_p));
+static int string_number P((struct STRINGINFO *stringinfo_p, int nstrings,
+ int letter, int accidental, int nticks));
+
+static void check_grace P((struct GRPSYL *grpsyl_item_p, char *fname,
+ int lineno));
+static void fix_strlist P((struct GRPSYL *gs_p, int font, int size,
+ char *fname, int lineno));
+static void check4missing_voices P((struct MAINLL *list_p));
+static void fix_mrpt P((struct MAINLL *mll_p));
+static int chk_mrpt_ssv_interactions P((struct SSV *ssv_p, struct GRPSYL *gs_p,
+ int staffno));
+static int is_ms P((struct GRPSYL *gs_p));
+static int voices_override P((int staff, int field));
+static void sort_notes P((struct GRPSYL *grpsyl_p, char *fname, int lineno));
+static int parse_bend_string P((char *bendstring));
+static void check_bends P((struct GRPSYL *gs_p, struct MAINLL *mll_p));
+\f
+
+/* allocate a new GRPSYL struct and return a pointer to it */
+
+struct GRPSYL *
+newGRPSYL(grp_or_syl)
+
+int grp_or_syl; /* GS_GROUP or GS_SYLLABLE */
+
+{
+ struct GRPSYL *new_p;
+
+
+ /* allocate a new structure */
+ CALLOC(GRPSYL, new_p, 1);
+
+ /* fill in default values */
+ new_p->grpsize = GS_NORMAL;
+ new_p->grpvalue = GV_NORMAL;
+ new_p->grpcont = GC_NOTES;
+ new_p->beamloc = NOITEM;
+ new_p->breakbeam = NO;
+ new_p->tuploc = NOITEM;
+ new_p->grpsyl = (short) grp_or_syl;
+ new_p->roll = NOITEM;
+ new_p->inputfile = Curr_filename;
+ new_p->inputlineno = (short) yylineno;
+ new_p->normwith = YES;
+ new_p->stemdir = (short) UNKNOWN;
+ new_p->beamto = CS_SAME;
+ new_p->stemto = CS_SAME;
+ /* default to no user-specified stem length */
+ new_p->stemlen = STEMLEN_UNKNOWN;
+ /* default to no user-specified rest dist */
+ new_p->restdist = NORESTDIST;
+ /* default to no user-specified syllable position */
+ new_p->sylposition = NOSYLPOSITION;
+ /* no clef change before this group */
+ new_p->clef = NOCLEF;
+ /* by default, placement will figure out the note head shape */
+ new_p->headshape = HS_UNKNOWN;
+ /* let Mup figure out angle for beams */
+ new_p->beamslope = NOBEAMANGLE;
+ /* everything else zero-ed is proper default */
+
+ return(new_p);
+}
+\f
+
+/* Copy group attributes (grpsize, grpvalue, "with" list, etc)
+ * from one GRPSYL to another */
+
+void
+copy_attributes(newgrp_p, oldgrp_p)
+
+struct GRPSYL *newgrp_p; /* copy info into this one */
+struct GRPSYL *oldgrp_p; /* copy from this one */
+
+{
+ if (oldgrp_p == 0) {
+ yyerror("empty [] not allowed on the first chord of a measure");
+ return;
+ }
+
+ newgrp_p->grpvalue = oldgrp_p->grpvalue;
+ newgrp_p->grpsize = oldgrp_p->grpsize;
+ newgrp_p->headshape = oldgrp_p->headshape;
+ newgrp_p->stemdir = oldgrp_p->stemdir;
+ newgrp_p->stemlen = oldgrp_p->stemlen;
+ newgrp_p->ho_usage = oldgrp_p->ho_usage;
+ newgrp_p->ho_value = oldgrp_p->ho_value;
+
+ clone_withlist(newgrp_p, oldgrp_p);
+
+ if (oldgrp_p->slash_alt > 0) {
+ newgrp_p->slash_alt = oldgrp_p->slash_alt;
+ }
+ newgrp_p->padding = oldgrp_p->padding;
+ /* restdist is only used for rests, but easiest to just always copy,
+ * since grpcont hasn't been set yet. */
+ newgrp_p->restdist = oldgrp_p->restdist;
+}
+\f
+
+/* make a copy of withlist */
+
+void
+clone_withlist(newgrp_p, oldgrp_p)
+
+struct GRPSYL *newgrp_p;
+struct GRPSYL *oldgrp_p;
+
+{
+ register int n; /* index through with list */
+
+
+ newgrp_p->nwith = oldgrp_p->nwith;
+ if (oldgrp_p->nwith > 0) {
+ MALLOCA(char *, newgrp_p->withlist, oldgrp_p->nwith);
+ for (n = 0; n < oldgrp_p->nwith; n++) {
+ newgrp_p->withlist[n] =
+ copy_string(oldgrp_p->withlist[n] + 2,
+ Curr_font, Curr_size);
+ }
+ }
+}
+\f
+
+/* Copy timeunit info from one GRPSYL to another,
+ * or use default if source is NULL. If needed to use default timeunit,
+ * and that included additive times, returns pointer to the list of those
+ * times, else return NULL. */
+
+struct TIMELIST *
+copy_timeunit(newgrp_p, oldgrp_p, timelist_p)
+
+struct GRPSYL *newgrp_p; /* copy info into here */
+struct GRPSYL *oldgrp_p; /* copy from here. If NULL, use default value */
+struct TIMELIST *timelist_p; /* If non-null use this instead of oldgrp_p */
+
+{
+ struct SSV *ssv_p;
+
+ ssv_p = 0;
+
+ if (oldgrp_p == (struct GRPSYL *) 0) {
+
+ /* use default timeunit. Have to figure out differently for
+ * lyrics than notes, because for lyrics the voice depends
+ * on the lyrics place. */
+ if (newgrp_p->grpsyl == GS_GROUP) {
+ ssv_p = get_dflt_timeunit_ssv();
+ }
+ else {
+ ssv_p = get_lyr_dflt_timeunit_ssv();
+ }
+ newgrp_p->fulltime = ssv_p->timeunit;
+
+ newgrp_p->basictime = reconstruct_basictime(newgrp_p->fulltime);
+ newgrp_p->dots = recalc_dots(newgrp_p->fulltime,
+ newgrp_p->basictime);
+ return(ssv_p->timelist_p);
+ }
+
+ else {
+ RATIONAL basictime;
+
+ newgrp_p->basictime = oldgrp_p->basictime;
+ newgrp_p->dots = oldgrp_p->dots;
+
+ /* actual time value is (2 * basictime)
+ * - (basic_time x 1/2 to the (dots) power) */
+ /* can't just copy the fulltime from oldgrp, because that
+ * may have been altered if it was a tuplet */
+ if (newgrp_p->basictime == 0) {
+ /* strange case of double whole, stored as zero */
+ basictime.n = 2;
+ basictime.d = 1;
+ }
+ else if (newgrp_p->basictime == -1) {
+ /* strange case of quad whole, stored as -1 */
+ basictime.n = 4;
+ basictime.d = 1;
+ }
+ else {
+ basictime.n = 1;
+ basictime.d = newgrp_p->basictime;
+ }
+
+ newgrp_p->fulltime = calcfulltime(basictime, newgrp_p->dots);
+ }
+
+ /* note that tuplet values are dealt with in end_tuplet(). Once we
+ * collect an entire tuplet, we can go through and multiply
+ * the fulltimes by the appropriate amount */
+ return(timelist_p);
+}
+\f
+
+/* copy notes (list of NOTE structs) from one GRPSYL to another, along with
+ * a few group attributes that should be copied when a GRPSYL is copied. */
+
+void
+copy_notes(newgrp_p, oldgrp_p)
+
+struct GRPSYL *newgrp_p; /* copy into here */
+struct GRPSYL *oldgrp_p; /* copy from here */
+
+{
+ /* first GRPSYL in bar must have notes specified */
+ if (oldgrp_p == (struct GRPSYL *) 0) {
+ add_note(newgrp_p, PP_NO_PITCH, '\0', DFLT_OCT, 0, NO, (char *) 0);
+ newgrp_p->notelist [ newgrp_p->nnotes ].tie = NO;
+ newgrp_p->notelist [ newgrp_p->nnotes ].notesize = GS_NORMAL;
+ }
+
+ else {
+ /* there was a previous GRPSYL -- use it for defaults */
+ newgrp_p->grpcont = oldgrp_p->grpcont;
+ clone_notelist(newgrp_p, oldgrp_p, NO);
+ newgrp_p->is_meas = oldgrp_p->is_meas;
+ newgrp_p->uncompressible = oldgrp_p->uncompressible;
+ }
+}
+\f
+
+/* once the info about a group has been gathered,
+ * add it to list of GRPSYL structs */
+
+void
+link_notegroup(newgrp_p, last_grp_p)
+
+struct GRPSYL *newgrp_p; /* one to add on */
+struct GRPSYL *last_grp_p; /* one to add it onto */
+
+{
+ int n;
+
+ debug(4, "link_notegroup file=%s line=%d", newgrp_p->inputfile,
+ newgrp_p->inputlineno);
+
+ if (last_grp_p == (struct GRPSYL *) 0) {
+ /* first one: we need to keep a pointer to this one to
+ * link onto one or more STAFF structs later */
+ Curr_gs_list_p = newgrp_p;
+ }
+
+ else {
+ /* link onto list */
+ last_grp_p->next = newgrp_p;
+ }
+ newgrp_p->prev = last_grp_p;
+
+ /* fill in tuplet information, based on current state. Adjust tuplet
+ * state if necessary for use with later groups */
+ newgrp_p->tuploc = (short) Tuplet_state;
+ if (Tuplet_state == STARTITEM) {
+ Tuplet_list_p = newgrp_p;
+ Tuplet_state = INITEM;
+ }
+
+ /* We don't have a quad whole note character,
+ * so don't allow 1/4 on notes */
+ if (EQ(newgrp_p->fulltime, Four)) {
+ for (n = 0; n < newgrp_p->nnotes; n++) {
+ if (newgrp_p->notelist[n].letter >= 'a' &&
+ newgrp_p->notelist[n].letter <= 'g') {
+ yyerror("1/4 not allowed on notes");
+ break;
+ }
+ }
+ }
+
+ /* dist is only allowed on rests */
+ if (newgrp_p->restdist != NORESTDIST) {
+ for (n = 0; n < newgrp_p->nnotes; n++) {
+ if (newgrp_p->notelist[n].letter != PP_REST) {
+ yyerror("dist only allowed on rests");
+ }
+ }
+ }
+}
+\f
+
+/* make a copy of a linked list of GRPSYL structs and return a pointer to it */
+/* Note that while this function is called for both groups and syllables,
+ * lyric syllables are not copied by this function. Lyrics syllables are
+ * handled in lyrics.c */
+
+struct GRPSYL *
+clone_gs_list(list_p, copy_noteinfo)
+
+struct GRPSYL *list_p; /* the list to be cloned */
+int copy_noteinfo; /* if YES, copy notes and with lists */
+
+{
+ struct GRPSYL *new_p, *newlist_p;
+ struct GRPSYL *prev_p = (struct GRPSYL *) 0; /* to remember last one,
+ to know where to link on current one */
+
+
+
+ /* walk down the existing list */
+ for (newlist_p = (struct GRPSYL *) 0; list_p != (struct GRPSYL *) 0;
+ list_p = list_p->next) {
+
+ /* allocate space for copy of list element and fill it in */
+ MALLOC(GRPSYL, new_p, 1);
+
+ (void) memcpy(new_p, list_p, sizeof(struct GRPSYL) );
+
+ /* we can't just copy the links--they have to be recalculated */
+ if (newlist_p == (struct GRPSYL *) 0) {
+
+ /* first in new list: keep track of where list begins,
+ * since we need to return this value, and keep track
+ * of where we are, so we can link the next element
+ * onto this one, which will be its prev element */
+ newlist_p = new_p;
+ prev_p = new_p;
+ }
+
+ else {
+ prev_p->next = new_p;
+ new_p->prev = prev_p;
+ prev_p = new_p;
+ }
+
+ if (copy_noteinfo == YES) {
+ /* also need to make copies of the notelist, since
+ * they contain COORDS that are unique
+ * for each instance */
+ clone_notelist(new_p, list_p, YES);
+
+ /* with lists cannot be shared,
+ * because otherwise fix_string
+ * could get called on an already fixed string. */
+ clone_withlist(new_p, list_p);
+ }
+ }
+
+ return(newlist_p);
+}
+\f
+
+/* make a copy of the notelist in one GRPSYL struct into another */
+
+static void
+clone_notelist(new_p, old_p, copy_acc_etc)
+
+struct GRPSYL *new_p; /* copy into here */
+struct GRPSYL *old_p; /* from here */
+int copy_acc_etc; /* if YES, copy accidentals. If just reusing a
+ * group on the same staff, we don't want to
+ * copy these things */
+
+{
+ register int n; /* index through note list */
+
+
+ /* mark the number of notes in the new list */
+ new_p->nnotes = old_p->nnotes;
+
+ /* copy cross-staff stem info */
+ new_p->stemto = old_p->stemto;
+ new_p->stemto_idx = old_p->stemto_idx;
+
+ if (old_p->nnotes > 0) {
+
+ /* allocate new memory and copy from old to new */
+ MALLOC(NOTE, new_p->notelist, old_p->nnotes);
+
+ (void)memcpy((char *) new_p->notelist, (char *) old_p->notelist,
+ (unsigned) (old_p->nnotes * sizeof(struct NOTE)));
+
+ }
+
+ else if ((new_p->grpsyl == GS_GROUP) && (new_p->grpcont == GC_NOTES) &&
+ is_mrpt(new_p) == NO) {
+ yyerror("tried to use previous chord for defaults, but it had no notes");
+ return;
+ }
+
+ for (n = 0; n < old_p->nnotes; n++) {
+
+ if (copy_acc_etc == YES) {
+ new_p->notelist[n].nslurto = old_p->notelist[n].nslurto;
+ /* It isn't necessarily safe to share slurto lists.
+ * In particular, if multiple staffs are specified,
+ * and they have different clefs, the default octave
+ * will be different. So make a copy to be safe. */
+ if (new_p->notelist[n].nslurto > 0) {
+ MALLOC(SLURTO, new_p->notelist[n].slurtolist,
+ new_p->notelist[n].nslurto);
+ memcpy(new_p->notelist[n].slurtolist,
+ old_p->notelist[n].slurtolist,
+ sizeof(struct SLURTO) *
+ old_p->notelist[n].nslurto);
+ }
+ else {
+ new_p->notelist[n].slurtolist = (struct SLURTO *) 0;
+ }
+ }
+ else {
+ new_p->notelist[n].nslurto = 0;
+ new_p->notelist[n].slurtolist = (struct SLURTO *) 0;
+ new_p->notelist[n].is_bend = NO;
+ new_p->notelist[n].smallbend = NO;
+ }
+
+ /* alloc space for coordinates */
+ MALLOCA(float, new_p->notelist[n].c, NUMCTYPE);
+ }
+
+ /* if a note that was cloned had an accidental on it,
+ * the clone doesn't need the accidental since we are in
+ * the same measure. Ties also do not get copied. But on tab staff,
+ * the accidental does need to get copied since it's part of the
+ * name of the string. */
+ for (n = 0; n < old_p->nnotes; n++) {
+ if(copy_acc_etc == NO) {
+ if (Doing_tab_staff == NO) {
+ new_p->notelist[n].accidental = '\0';
+ new_p->notelist[n].acc_has_paren = NO;
+ }
+ new_p->notelist[n].tie = NO;
+ }
+ }
+}
+\f
+
+/* add a NOTE to a list of notes off a GRPSYL */
+
+void
+add_note(grpsyl_p, pitch, accidental, octave, nticks, has_paren, bendstring)
+
+struct GRPSYL *grpsyl_p; /* what group to associate note with */
+int pitch; /* 'a' to 'g' */
+ /* can also be pseudo-pitches for rest, space and rpt */
+int accidental; /* '\0', '#', '&', 'n', 'x', or 'B' */
+int octave; /* octave for normal staffs,
+ * fret for tab staffs, uncompressibility
+ * for space pseudo-notes */
+int nticks; /* number of tick marks, for tab staffs */
+int has_paren; /* YES if accidental has parentheses (for
+ * non-tab staffs) or if fret has parentheses
+ * (for tab staffs) */
+char *bendstring; /* bend specification, or null if no bend */
+
+{
+ register int index; /* into notelist */
+
+
+ if (grpsyl_p->nnotes == 0) {
+ /* first time--need to allocate */
+ CALLOC(NOTE, grpsyl_p->notelist, NOTE_CHUNK);
+ }
+
+ /* see if overflowed and thus need to re-allocate more space */
+ else if ((grpsyl_p->nnotes % NOTE_CHUNK) == 0) {
+ REALLOC(NOTE, grpsyl_p->notelist, grpsyl_p->nnotes + NOTE_CHUNK);
+ memset((void *) (& grpsyl_p->notelist[grpsyl_p->nnotes]),
+ 0, NOTE_CHUNK * sizeof(struct NOTE));
+ }
+
+ /* find index into notelist where we put this note */
+ index = grpsyl_p->nnotes;
+
+ /* allocate space for coordinates. The coordinates must be in a
+ * malloc-ed array and not a static array. At one point, we thought
+ * we could save a few bytes by changing back to array, but that
+ * would be a lot of work. The reason is that the
+ * coordinates are pointed to whenever there is a location tag on a
+ * note. The array must not move or else the location tag reference
+ * would be wrong. Since we qsort the notes later on, the coords would
+ * move if they were a static array rather than a malloc-ed array.
+ * In order to allow moving them, we'd have to keep track of all note
+ * location tags for much longer than we currently do, and then go
+ * back and change their values when notes are sorted. It would require
+ * finding entries in a hash table by other than their key (i.e,
+ * require a linear search or another whole indexing scheme), and
+ * also require either going back to patch up any lines, curves, and
+ * prints that used the coords, or delaying their definition by saving
+ * lots of information around. */
+ MALLOCA(float, grpsyl_p->notelist[index].c, NUMCTYPE);
+
+ grpsyl_p->notelist [ index ].letter = (short) pitch;
+ grpsyl_p->notelist [ index ].accidental = (char) accidental;
+ grpsyl_p->notelist [ index ].acc_has_paren = has_paren;
+ if (Doing_tab_staff == YES && pitch >= 'a' && pitch <= 'g') {
+ int fret;
+
+ fret = octave;
+
+ /* do error checks */
+ if (accidental != '\0' && accidental != '#' && accidental != '&') {
+ yyerror("accidental on tab staff can only be # or &");
+ }
+
+ if (fret == NOFRET && bendstring == (char *) 0) {
+ yyerror("a fret number and/or bend must be specified");
+ /* put in something valid so later functions won't
+ * complain */
+ fret = MINFRET;
+ }
+ else if ((fret < MINFRET || fret > MAXFRET) && fret != NOFRET) {
+ l_yyerror(grpsyl_p->inputfile, grpsyl_p->inputlineno,
+ "invalid fret number %d, must be %d-%d or have a bend",
+ fret, MINFRET, MAXFRET);
+ fret = MINFRET;
+ }
+
+ /* Cram fret and nticks in stepsup field for now. Later
+ * we will put fret in its proper place, but right now that
+ * is used for something else */
+ TMP_SAVE( (&(grpsyl_p->notelist[index])), nticks, fret);
+
+ /* cram the bend info into octave field */
+ grpsyl_p->notelist [ index ].octave
+ = parse_bend_string(bendstring);
+ }
+ else {
+ if (nticks > 0) {
+ yyerror("' not allowed on non-tablature staff");
+ }
+ grpsyl_p->notelist [ index ].octave = (short) octave;
+ }
+ grpsyl_p->notelist [ index ].nslurto = 0;
+ grpsyl_p->notelist [ index ].tie = NO;
+ grpsyl_p->notelist [ index ].tiestyle = L_NORMAL;
+ grpsyl_p->notelist [ index ].tiedir = UNKNOWN;
+ grpsyl_p->notelist [ index ].slurtolist = (struct SLURTO *)0;
+ grpsyl_p->notelist [ index ].notesize = GS_NORMAL;
+
+ /* don't need to initialize anything else in NOTE */
+
+ (grpsyl_p->nnotes)++;
+}
+\f
+
+/* once an entire chord is gathered, release any extra space gotten for
+ * notes */
+
+void
+resize_notelist(gs_p)
+
+struct GRPSYL *gs_p;
+
+{
+ int extra; /* how many extra NOTE structs there are */
+
+
+ extra = NOTE_CHUNK - (gs_p->nnotes % NOTE_CHUNK);
+
+ if (extra > 0 && extra < NOTE_CHUNK) {
+ /* release extra NOTE space */
+ REALLOC(NOTE, gs_p->notelist, gs_p->nnotes);
+ }
+}
+\f
+
+/* when we get to a bar line, we have to go back and rearrange things and
+ * do some error checks that couldn't be done until we had everything
+ * collected. All the non-STAFF structures have to be put after the STAFFs.
+ */
+
+void
+do_bar(bartype)
+
+int bartype;
+
+{
+ struct MAINLL *mll_p; /* to walk through list */
+ static short firstbar = YES; /* if first time this func was called */
+ short v; /* voice number */
+ short found_above_for[MAXSTAFFS+1]; /* how many times this staff
+ * was succesfully matched up with a
+ * "bm with staff below" */
+ int i; /* index though above array */
+ int other_staff; /* other staff for cross-staff beam */
+ int with_above; /* how many "bm with staff above"
+ * found on current staff */
+
+
+ debug(2, "do_bar");
+
+ /* The "restart" is a strange thing only vaguely like a regular bar,
+ * so handle it separately */
+ if (bartype == RESTART) {
+ restart_bar();
+ return;
+ }
+
+ if (List_of_staffs_p == (struct MAINLL *) 0) {
+ yyerror("empty measure");
+ return;
+ }
+
+ /* Make sure all voices are present; fill in measure space for
+ * any that are missing */
+ check4missing_voices(List_of_staffs_p);
+
+ /* attach all the lyrics to the right places */
+ attach_lyrics2staffs(List_of_staffs_p);
+
+ /* set up all the cross-staff beams */
+ for (i = 1; i <= MAXSTAFFS; i++) {
+ found_above_for[i] = 0;
+ }
+ for (mll_p = List_of_staffs_p; mll_p != (struct MAINLL *) 0;
+ mll_p = mll_p->next) {
+
+ if (mll_p->str != S_STAFF) {
+ break;
+ }
+
+ with_above = 0;
+ /* check every group of every voice */
+ for (v = 0; v < MAXVOICES; v++) {
+ struct GRPSYL *gs_p;
+
+ /* Only check visible voices */
+ if (vvpath(mll_p->u.staff_p->staffno, v+1, VISIBLE)->visible == NO) {
+ continue;
+ }
+
+ for (gs_p = mll_p->u.staff_p->groups_p[v];
+ gs_p != (struct GRPSYL *) 0;
+ gs_p = gs_p->next) {
+
+ /* if this is the first group in a cross-staff
+ * beam, take care to that */
+ if (gs_p->beamloc == STARTITEM &&
+ gs_p->beamto == CS_BELOW) {
+ /* before calling chk_crossbeams, make
+ * sure the gs_p we are passing has its
+ * vno set properly, since normally
+ * that doesn't happen till later.
+ * Maybe this cross-staff stuff should
+ * be done later, but I don't want to
+ * move it without a lot of thought to
+ * make sure that wouldn't break
+ * something, so this will work for now.
+ */
+ gs_p->vno = v;
+ other_staff = chk_crossbeam(gs_p, mll_p);
+ if (other_staff > 0) {
+ (found_above_for[other_staff])++;
+ }
+ }
+ else if (gs_p->beamloc == STARTITEM &&
+ gs_p->beamto == CS_ABOVE) {
+ with_above++;
+ }
+ }
+ }
+ if (found_above_for[mll_p->u.staff_p->staffno] < with_above) {
+ l_yyerror(mll_p->inputfile, mll_p->inputlineno,
+ "'bm with staff above' has no visible matching 'bm with staff below' (may be missing, invisible, or on wrong voice)");
+ }
+ }
+
+ /* if first measure, check if "pickup" measure. If so, it doesn't
+ * count toward measure number */
+ if (firstbar == YES && bartype != INVISBAR) {
+ if (has_pickup() == YES) {
+ /* don't count pickup measure */
+ Meas_num--;
+ }
+ /* set flag so we won't check again */
+ firstbar = NO;
+ }
+
+ /* increment measure number for rehearsal numbers */
+ if (bartype != INVISBAR && Got_multirest == 0) {
+ Meas_num++;
+ }
+
+ finish_bar();
+}
+\f
+
+/* Returns YES if piece begins with a pickup measure. */
+
+int
+has_pickup()
+{
+ int v; /* voice index */
+ struct MAINLL *mll_p; /* to step through main list */
+
+ /* go through each voice of each staff looking for non-space */
+ for (mll_p = Mainllhc_p; mll_p != (struct MAINLL *) 0;
+ mll_p = mll_p->next) {
+
+ /* Measures where the entire measure is compressible space
+ * and which end with an invisbar were probably just for the
+ * purpose of kludging in a funny time signature or something
+ * like that, so we ignore those measures while checking for a
+ * pickup measure.
+ */
+ if (mll_p->str == S_BAR && mll_p->u.bar_p->bartype != INVISBAR) {
+ /* got through entire first measure */
+ break;
+ }
+ if (mll_p->str != S_STAFF) {
+ continue;
+ }
+
+ for (v = 0; v < MAXVOICES; v++) {
+ if (mll_p->u.staff_p->groups_p[v] != 0 &&
+ (mll_p->u.staff_p->groups_p[v]
+ ->grpcont != GC_SPACE ||
+ mll_p->u.staff_p->groups_p[v]
+ ->uncompressible == YES) ) {
+ /* Found a voice that exists,
+ * but begins with a non-space or an
+ * uncompressible space. So it's not a pickup */
+ return(NO);
+ }
+ }
+ }
+ return(YES);
+}
+\f
+
+/* Do final cleanup in preparation for next bar of input */
+
+static void
+finish_bar()
+
+{
+ struct MAINLL *mll_p;
+
+ /* Walk thru the list, fixing everything that is left to fix */
+ for (mll_p = List_of_staffs_p; mll_p != (struct MAINLL *) 0;
+ mll_p = mll_p->next) {
+
+ if (mll_p->str == S_BAR) {
+ break;
+ }
+
+ if (mll_p->str == S_STAFF) {
+ /* Walk down each GRPSYL list and
+ * look for various errors and fix up things that
+ * couldn't be determined before */
+ fix_grpsyl_list(mll_p);
+
+ /* Set the visibility attribute for staff */
+ mll_p->u.staff_p->visible =
+ (svpath(mll_p->u.staff_p->staffno,
+ VISIBLE))->visible;
+ }
+
+ }
+
+ /* add padding etc for any rolls in the measure */
+ do_rolls(Mainlltc_p);
+
+ /* in case things are screwed up because of user input errors,
+ * reset tuplet state. */
+ Tuplet_state = NOITEM;
+
+ /* do measure level checks on "stuff" */
+ meas_stuff_chk();
+
+ /* get ready for next measure */
+ List_of_staffs_p = (struct MAINLL *) 0;
+ Got_multirest = 0;
+ Got_group = NO;
+ reset_input_style();
+ lyr_new_bar();
+}
+\f
+
+/* A "restart" is a funny sort of bar.
+ * We create a measure of space before it. */
+
+static void
+restart_bar()
+
+{
+ struct MAINLL *mll_p;
+ struct MAINLL *mainbar_p; /* the restart */
+
+ if (List_of_staffs_p != 0) {
+ yyerror("restart cannot be preceeded by music data");
+ return;
+ }
+ if (Got_some_data == NO) {
+ yyerror("restart cannot be used at the beginning");
+ return;
+ }
+
+ /* It doesn't make sense to begin a repeat right before a restart,
+ * so block that. */
+ for (mll_p = Mainlltc_p->prev; mll_p != (struct MAINLL *) 0;
+ mll_p = mll_p->prev) {
+ if (mll_p->str == S_BAR) {
+ if (mll_p->u.bar_p->bartype == REPEATSTART) {
+ yyerror("repeatstart not allowed immediately before restart");
+ }
+ else if (mll_p->u.bar_p->bartype == REPEATBOTH) {
+ yyerror("repeatboth not allowed immediately before restart");
+ }
+ break;
+ }
+ }
+
+ /* save the bar so we can move after the staffs */
+ mainbar_p = Mainlltc_p;
+ /* create a "measure" of all space */
+ create_staffs();
+ check4missing_voices(List_of_staffs_p);
+ /* move the restart BAR after the empty measure */
+ unlinkMAINLL(mainbar_p);
+ insertMAINLL(mainbar_p, Mainlltc_p);
+ finish_bar();
+}
+\f
+
+/* walk down the linked lists of GRPSYLs and fix everything that is left to
+ * fix: font/size, octaves, default timeunits, etc */
+
+static void
+fix_grpsyl_list(mainll_item_p)
+
+struct MAINLL *mainll_item_p;
+
+{
+ register int v;
+ struct STAFF *staff_p;
+ struct MAINLL *mll_p; /* for finding timed SSVs */
+ struct TIMEDSSV *tssv_p;
+ int numvoices;
+
+
+ /* error checks */
+ if (mainll_item_p->str != S_STAFF) {
+ pfatal("wrong struct type passed to fix_grpsyl_list()");
+ }
+ staff_p = mainll_item_p->u.staff_p;
+
+
+ /* verify voice is valid for current vscheme */
+ numvoices = vscheme_voices(svpath(staff_p->staffno,VSCHEME)->vscheme);
+ if (staff_p->groups_p[1] != (struct GRPSYL *) 0 && numvoices == 1) {
+ l_yyerror(staff_p->groups_p[1]->inputfile,
+ staff_p->groups_p[1]->inputlineno,
+ "can't have voice 2 when vscheme=1");
+ }
+ if (staff_p->groups_p[2] != (struct GRPSYL *) 0 && numvoices < 3) {
+ l_yyerror(staff_p->groups_p[2]->inputfile,
+ staff_p->groups_p[2]->inputlineno,
+ "can't have voice 3 unless vscheme is 3o or 3f");
+ }
+
+ /* Determine if there are timed SSVs to deal with */
+ tssv_p = 0;
+ for (mll_p = mainll_item_p; mll_p != 0; mll_p = mll_p->next) {
+ if (mll_p->str == S_BAR) {
+ tssv_p = mll_p->u.bar_p->timedssv_p;
+ break;
+ }
+ }
+
+ /* fix the GROUPS */
+ for (v = 0; v < MAXVOICES; v++) {
+ if (staff_p->groups_p[v] != (struct GRPSYL *) 0) {
+ if (tssv_p != 0) {
+ setssvstate(mainll_item_p);
+ }
+ fix_a_group_list(staff_p->groups_p[v],
+ staff_p->staffno, v + 1,
+ staff_p->groups_p[v]->inputfile,
+ staff_p->groups_p[v]->inputlineno,
+ staff_p->mrptnum,
+ tssv_p);
+
+ /* on tablature staffs, must deal with bends */
+ if (is_tab_staff(staff_p->staffno) == YES) {
+ check_bends(staff_p->groups_p[v], mainll_item_p);
+ }
+ }
+ }
+
+ /* make sure timed SSVs are all up to date at end of measure */
+ for ( ; tssv_p != 0; tssv_p = tssv_p->next) {
+ asgnssv(&tssv_p->ssv);
+ }
+
+ /* then check syllables */
+ for (v = 0; v < staff_p->nsyllists; v++) {
+ chk_a_syl_list(staff_p->syls_p[v],
+ staff_p->syls_p[v]->inputfile,
+ staff_p->syls_p[v]->inputlineno);
+ }
+}
+\f
+
+/* walk through a list of GRPSYLs (GROUPs, not SYLLABLESs), and fix up things
+ * like octaves, etc */
+
+
+static void
+fix_a_group_list(grpsyllist_p, staffno, vno, fname, lineno, mrptnum, tssv_p)
+
+struct GRPSYL *grpsyllist_p;
+int staffno;
+int vno; /* voice number */
+char *fname; /* file name for error messages */
+int lineno; /* input line number, for error messages */
+int mrptnum; /* to decide whether to run fix_string or not */
+struct TIMEDSSV *tssv_p; /* points to any timed SSVs in this measure */
+
+{
+ int font, size;
+ int n; /* index through notelist */
+ RATIONAL total_time; /* to add up all fulltimes in current voice/verse */
+ short default_octave;
+ struct GRPSYL *grpsyl_p;
+ struct GRPSYL *gs_p; /* for walking through grace runs */
+ int nn;
+
+
+
+ if (grpsyllist_p == (struct GRPSYL *) 0) {
+ /* this is un undefined voice, so nothing to do */
+ return;
+ }
+
+ debug(4, "fix_a_group_list file=%s lineno=%d staffno=%d vno=%d",
+ grpsyllist_p->inputfile, grpsyllist_p->inputlineno,
+ staffno, vno);
+
+ /* will need to fix up the font and size of strings in the
+ * "with" lists, so figure out
+ * which font and size to use for that */
+ font = (svpath(staffno, FONT))->font
+ + (svpath(staffno, FONTFAMILY))->fontfamily;
+ size = (svpath(staffno, SIZE))->size;
+
+ /* initialize total time for this voice in this meas */
+ total_time = Zero;
+
+ /* find default octave for this staff/voice */
+ default_octave = (vvpath(staffno, vno, DEFOCT))->defoct;
+
+ grpsyl_p = grpsyllist_p;
+
+ Doing_tab_staff = is_tab_staff(staffno);
+
+ /* do each group */
+ for ( ; grpsyl_p != (struct GRPSYL *) 0; grpsyl_p = grpsyl_p->next) {
+
+ /* fill in staffno and vno */
+ grpsyl_p->staffno = (short) staffno;
+ grpsyl_p->vno = (short) vno;
+
+ /* Apply any timed SSVs */
+ while (tssv_p != 0 && LE(tssv_p->time_off, total_time)) {
+ asgnssv(&tssv_p->ssv);
+ tssv_p = tssv_p->next;
+ /* the default octave might have changed,
+ * so look it up again.
+ */
+ default_octave = (vvpath(staffno, vno, DEFOCT))->defoct;
+ }
+ /* if no pitch given on first group of measure, use default
+ * pitch if 1-line staff, otherwise error */
+ if (grpsyl_p->nnotes == 1 && grpsyl_p->notelist[0].letter
+ == PP_NO_PITCH) {
+ if (svpath(staffno, STAFFLINES)->stafflines == 1 &&
+ Doing_tab_staff == NO) {
+ grpsyl_p->notelist[0].letter = DFLT_PITCH;
+ }
+ else {
+ l_yyerror(fname, lineno,
+ "must have note(s) specified for first group in bar");
+ }
+ }
+
+ /* make sure "with" lists are in right size/font */
+ /* When groups are copied to expand measure repeats for
+ * MIDI purposes, any 'with' lists would already be in
+ * internal format, so we don't want to try to fix them,
+ * but otherwise strings need to be put in internal format */
+ if (mrptnum == 0) {
+ fix_strlist(grpsyl_p, font, size, fname, lineno);
+ }
+
+ if (mrptnum == 0) {
+ if (Doing_tab_staff == YES) {
+ /* determine proper STRINGNO and FRETNO information */
+ fix_frets(grpsyl_p);
+ }
+ else {
+ /* take care of relative octaves */
+ resolve_octaves(grpsyl_p, default_octave);
+ }
+ }
+
+ if (svpath(staffno, STAFFLINES)->stafflines == 1
+ && grpsyl_p->nnotes > 1) {
+ l_warning(fname, lineno,
+ "more than one note in chord on 1-line staff");
+ }
+
+ /* put notes in order top to bottom */
+ sort_notes(grpsyl_p, fname, lineno);
+
+ /* if group is small notes, mark each note as small */
+ if (grpsyl_p->grpsize != GS_NORMAL) {
+
+ for (n = 0; n < grpsyl_p->nnotes; n++) {
+
+ grpsyl_p->notelist[n].notesize
+ = grpsyl_p->grpsize;
+ }
+ }
+
+#ifdef GRPSMALL
+ /* at first we thought we should mark the whole group small if all
+ * notes were small, but later decided not, so this is ifdef-ed out */
+ /* on the other hand, if all notes are explicitly marked
+ * small, make the whole group small. This is handy in case,
+ * for example, the user uses ? instead of [cue] on a
+ * single-note group */
+ else if (grpsyl_p->grpcont == GC_NOTES) {
+ int numsmall; /* how many small notes */
+
+ for (numsmall = n = 0; n < grpsyl_p->nnotes; n++) {
+ if (grpsyl_p->notelist[n].notesize
+ == GS_SMALL) {
+ numsmall++;
+ }
+ }
+ if (grpsyl_p->nnotes > 0 &&
+ numsmall == grpsyl_p->nnotes) {
+ grpsyl_p->grpsize = GS_SMALL;
+ }
+ }
+#endif
+
+ /* error check rests */
+ if (grpsyl_p->grpcont == GC_REST) {
+ if ( (grpsyl_p->prev != (struct GRPSYL *) 0)
+ && (grpsyl_p->prev->grpcont
+ == GC_NOTES)
+ && (grpsyl_p->prev->grpvalue
+ == GV_ZERO) ) {
+ l_yyerror(fname, lineno,
+ "can't have grace notes before rest");
+ }
+
+ /* We used to disallow stemdir on rests, but it could
+ * come from an earlier []... and doesn't really hurt;
+ * it doesn't matter which direction the non-existent
+ * stem is, so we silently ignore.
+ */
+ if (IS_STEMLEN_KNOWN(grpsyl_p->stemlen)) {
+ /* Might be just from a [ ]... on an earlier
+ * group, and doesn't really hurt anything,
+ * so silently ignore.
+ */
+ grpsyl_p->stemlen = 0.0;
+ }
+ }
+
+ /* error check space */
+ else if (grpsyl_p->grpcont == GC_SPACE) {
+ if (IS_STEMLEN_KNOWN(grpsyl_p->stemlen)) {
+ grpsyl_p->stemlen = 0.0;
+ }
+ }
+
+ /* error check measure repeats */
+ if (is_mrpt(grpsyl_p) == YES) {
+ if (grpsyl_p->nwith != 0
+ || grpsyl_p->grpvalue != GV_NORMAL
+ || grpsyl_p->headshape != HS_UNKNOWN
+ || grpsyl_p->grpsize != GS_NORMAL
+ || IS_STEMLEN_KNOWN(grpsyl_p->stemlen)
+ || grpsyl_p->stemdir != UNKNOWN
+ || grpsyl_p->slash_alt > 0) {
+ l_yyerror(fname, lineno,
+ "can't specify items in [ ] with measure repeat (except padding and tag)");
+ }
+ if (grpsyl_p->slash_alt < 0) {
+ l_yyerror(fname, lineno,
+ "can't specify alt with measure repeat");
+ }
+ if (grpsyl_p->tie == YES) {
+ l_yyerror(fname, lineno,
+ "can't specify tie with measure repeat");
+ }
+ }
+ /* grace notes need special handling */
+ if (grpsyl_p->grpvalue == GV_ZERO && is_mrpt(grpsyl_p) == NO) {
+
+ /* grace notes really take no time */
+ grpsyl_p->fulltime = Zero;
+
+ /* do some error checks */
+ check_grace(grpsyl_p, fname, lineno);
+
+ /* if more than one grace note in a row, beam them */
+ if (grpsyl_p->beamloc == NOITEM
+ && grpsyl_p->basictime > 4) {
+
+ /* if there is another grace following, will
+ * need to beam them */
+ if ((grpsyl_p->next != (struct GRPSYL *)0) &&
+ (grpsyl_p->next->grpvalue
+ == GV_ZERO) &&
+ (grpsyl_p->next->basictime
+ > 4) ) {
+
+ /* mark the first one as STARTITEM */
+ grpsyl_p->beamloc = STARTITEM;
+
+ /* mark intermediates, if any,
+ * as INITEM, and last in run
+ * of grace as ENDITEM */
+ for (gs_p = grpsyl_p->next;
+ gs_p->next
+ != (struct GRPSYL *) 0;
+ gs_p = gs_p->next) {
+ if (gs_p->next->grpvalue
+ == GV_ZERO &&
+ gs_p->next->basictime
+ > 4) {
+ gs_p->beamloc = INITEM;
+ }
+ else {
+ gs_p->beamloc = ENDITEM;
+ break;
+ }
+ }
+ if (gs_p->next == (struct GRPSYL *) 0){
+ /* grace at end of measure is
+ * illegal, but we catch that
+ * in check_grace(). So just
+ * mark the beam as ended */
+ gs_p->beamloc = ENDITEM;
+ }
+ }
+ }
+ }
+
+ /* if this group is alternating with the next, need to
+ * adjust fulltimes to be 1/2 of their current values. */
+ if (grpsyl_p->slash_alt < 0 && is_mrpt(grpsyl_p) == NO) {
+ /* need to error check first. First, there must
+ * be another group in this measure. Moreover, it
+ * must have the same fulltime value, and both
+ * must be either NORMAL or SMALL size. Also, the
+ * next group can't have an alt. */
+ if (grpsyl_p->next == (struct GRPSYL *) 0) {
+ l_yyerror(fname, lineno,
+ "cannot specify 'alt' on last group in measure");
+ continue;
+ }
+
+ else if (grpsyl_p->next->grpvalue == GV_ZERO ||
+ grpsyl_p->grpvalue == GV_ZERO) {
+ l_yyerror(fname, lineno,
+ "can't use 'alt' on grace notes");
+ }
+
+ else if ( ! EQ(grpsyl_p->fulltime,
+ grpsyl_p->next->fulltime) ) {
+ l_yyerror(fname, lineno,
+ "groups in 'alt' pair must have identical time values");
+ }
+
+ else if (grpsyl_p->next->grpsize
+ != grpsyl_p->grpsize) {
+ l_yyerror(fname, lineno,
+ "can't mix normal and cue notes for 'alt'");
+ }
+
+ else if (grpsyl_p->next->slash_alt < 0) {
+ l_yyerror(fname, lineno,
+ "can't have 'alt' on consecutive chords");
+
+ }
+
+ else if (grpsyl_p->next->slash_alt > 0) {
+ l_yyerror(fname, lineno,
+ "can't have 'slash' on second chord of 'alt' pair");
+ }
+
+ else if (grpsyl_p->grpcont != GC_NOTES ||
+ grpsyl_p->next->grpcont != GC_NOTES) {
+ l_yyerror(fname, lineno,
+ "'alt' must be preceeded and followed by notes, not rest or space");
+ }
+
+ else {
+ grpsyl_p->fulltime =
+ rdiv(grpsyl_p->fulltime, Two);
+ grpsyl_p->next->fulltime =
+ rdiv(grpsyl_p->next->fulltime, Two);
+ }
+
+ if (grpsyl_p->stemdir != grpsyl_p->next->stemdir) {
+ l_yyerror(fname, lineno,
+ "'alt' pair chords must have identical stem directions");
+ }
+
+ if (grpsyl_p->beamto != CS_SAME) {
+ l_yyerror(fname, lineno,
+ "'alt' not allowed on cross-staff beams");
+ }
+ }
+ else if (grpsyl_p->grpvalue != GV_ZERO &&
+ grpsyl_p->slash_alt > 0 &&
+ is_mrpt(grpsyl_p) == NO) {
+
+ /* need to make sure number of slashes is valid */
+ /* figure out how many actual chords are represented
+ * by the slashed chord */
+ switch (grpsyl_p->basictime) {
+ case 0:
+ nn = 16;
+ break;
+ case 1:
+ nn = 8;
+ break;
+ case 2:
+ nn = 4;
+ break;
+ default:
+ nn = 2;
+ break;
+ }
+ /* multiply by two for each additional slash beyond
+ * the first. We shouldn't really need this IF, since
+ * if should be okay to shift by 0, but for some reason,
+ * on my system, if slash_alt is 1 and the optimizer
+ * is run on this code, the following "if (n == 0)"
+ * statement doesn't work right. It works fine if
+ * the optimizer isn't run! (YIKES!!!!) */
+ if (grpsyl_p->slash_alt > 1) {
+ nn = nn << (grpsyl_p->slash_alt - 1);
+ }
+
+ if (nn == 0) {
+ /* shifted left into oblivion */
+ yyerror("too many slashes");
+ }
+ /* We are okay as long as the number of dots is no
+ * more than the number of zero bits on the right end
+ * of the number. If there are more, user is trying
+ * to subdivide too much, so disallow */
+ else if (drmo(nn) < grpsyl_p->dots) {
+ yyerror("illegal number of slashes");
+ }
+
+ if (grpsyl_p->beamto != CS_SAME) {
+ l_yyerror(fname, lineno,
+ "'slash' not allowed on cross-staff beams");
+ }
+ }
+
+ /* check for unclosed custom beams */
+ if (grpsyl_p->next == (struct GRPSYL *) 0 &&
+ (grpsyl_p->beamloc == STARTITEM ||
+ grpsyl_p->beamloc == INITEM) ) {
+ yyerror("missing ebm");
+ }
+
+ if (grpsyl_p->is_meas == YES && (grpsyl_p->prev != 0 ||
+ grpsyl_p->next != 0) ) {
+ yyerror("measure duration item must be the only thing in the measure");
+ }
+
+ /* add up the total time in the measure */
+ total_time = radd(total_time, grpsyl_p->fulltime);
+ }
+
+ /* check for not equal to time signature. */
+ if ( NE(total_time, Score.time) && (grpsyllist_p->is_meas == NO
+ || grpsyllist_p->next != 0) ) {
+ l_yyerror(fname, lineno,
+ "time in measure (%ld/%ld) does not add up to time signature",
+ total_time.n, total_time.d);
+ }
+
+ /* set up any beaming */
+ if (has_cust_beaming(grpsyllist_p) == NO) {
+ do_beaming(grpsyllist_p, GS_NORMAL, staffno, vno);
+ do_beaming(grpsyllist_p, GS_SMALL, staffno, vno);
+ }
+ set_alt_beams(grpsyllist_p);
+
+ for (grpsyl_p = grpsyllist_p; grpsyl_p != (struct GRPSYL *) 0;
+ grpsyl_p = grpsyl_p->next) {
+ /* We only allow specifying slope for beam on first group
+ * of a beam. To be very certain of avoiding any possiblity
+ * of floating point roundoff errors,
+ * we compare for being close to NOBEAMANGLE.
+ */
+ if (fabs(grpsyl_p->beamslope - NOBEAMANGLE) > 0.01) {
+ if (grpsyl_p->beamloc != STARTITEM) {
+ l_yyerror(fname, lineno,
+ "slope can only be specified on the first chord of a beam");
+ }
+ else if (grpsyl_p->grpcont == GC_SPACE) {
+ if (grpsyl_p->beamto != CS_SAME) {
+ l_yyerror(fname, lineno,
+ "on cross-staff beam, specify slope on staff with notes, not with space");
+ }
+ else {
+ /* Don't think it should really be
+ * possible to get here... */
+ l_yyerror(fname, lineno,
+ "slope can't be specified on space");
+ }
+ }
+ }
+ }
+}
+\f
+
+/* make sure all the syllable times add up to time signature */
+
+static void
+chk_a_syl_list(grpsyl_p, fname, lineno)
+
+struct GRPSYL *grpsyl_p; /* list to check */
+char *fname; /* file name for error messages */
+int lineno; /* input line for error messages */
+
+{
+ RATIONAL total_time;
+
+
+ total_time = Zero;
+
+ for ( ; grpsyl_p != (struct GRPSYL *) 0; grpsyl_p = grpsyl_p->next) {
+ total_time = radd(total_time, grpsyl_p->fulltime);
+ }
+
+ /* check for not equal to time signature. */
+ if ( NE(total_time, Score.time) ) {
+ l_yyerror(fname, lineno,
+ "time in measure (%ld/%ld) does not add up to time signature",
+ total_time.n, total_time.d);
+ }
+}
+\f
+
+/* resolve all the relative octaves to absolute octaves.
+ * Here's the deal: if the relative octave is negative,
+ * add (the negative value) to the default to get the
+ * real octave. If the relative is >= USE_DFLT_OCTAVE,
+ * add (octave - USE_DFLT_OCT) to the default to get the real
+ * value. Otherwise the relative is the absolute. */
+
+static void
+resolve_octaves(grpsyl_item_p, default_octave)
+
+struct GRPSYL *grpsyl_item_p; /* GRPSYL containing notes to resolve */
+int default_octave; /* default octave to use */
+
+{
+ register int n; /* walk through note list */
+ register int sl; /* walk through slurtolist */
+ int octave;
+ struct NOTE *note_p; /* current note */
+
+
+ for (n = 0; n < grpsyl_item_p->nnotes; n++) {
+
+ note_p = &(grpsyl_item_p->notelist[n]);
+ octave = note_p->octave;
+
+ if (octave < 0) {
+ /* add (the negative value) to default octave */
+ note_p->octave = (short)(default_octave + octave);
+ }
+ else if (octave >= USE_DFLT_OCTAVE) {
+ /* this means 0 or more to add to default octave */
+ note_p->octave = (short)(default_octave + octave
+ - USE_DFLT_OCTAVE);
+ }
+ else if (octave > MAXOCTAVE) {
+ l_yyerror(grpsyl_item_p->inputfile,
+ grpsyl_item_p->inputlineno,
+ "octave %d out of range (%d-%d)",
+ octave, MINOCTAVE, MAXOCTAVE);
+ }
+
+ /* also adjust any slurto */
+ if (note_p->nslurto > 0) {
+ for (sl = note_p->nslurto - 1; sl >= 0; sl--) {
+ octave = note_p->slurtolist[sl].octave;
+ if (octave < 0) {
+ note_p->slurtolist[sl].octave =
+ default_octave + octave;
+ }
+ else if (octave >= USE_DFLT_OCTAVE) {
+ note_p->slurtolist[sl].octave =
+ default_octave + octave
+ - USE_DFLT_OCTAVE;
+ }
+ }
+ }
+ }
+}
+\f
+
+/* given a fulltime value, figure out what its basictime value was.
+ * Here's the deal: First we find the power of 2 that is less than or
+ * equal to the numerator of fulltime. Then we take that number over the
+ * denominator of fulltime and reduce to lowest terms. The new denominator
+ * is the basictime. Note that this won't work for tuplets, but we don't
+ * call this for tuplets, so we're safe... */
+
+int
+reconstruct_basictime(fulltime)
+
+RATIONAL fulltime; /* find the basic time of this */
+
+{
+ RATIONAL newtime; /* RATIONAL of basictime */
+
+
+ if (fulltime.n < 0) {
+ pfatal("negative fulltime numerator");
+ }
+
+ /* guess MAXBASICTIME and work down by powers of 2
+ * till we get <= fulltime numerator */
+ for (newtime.n = MAXBASICTIME; newtime.n > fulltime.n; newtime.n >>= 1) {
+ ;
+ }
+ newtime.d = fulltime.d;
+ rred( &newtime );
+
+ /* special case -- double whole basictime is 0 */
+ if (EQ(newtime, Two)) {
+ return(0);
+ }
+ /* special case -- quad whole basictime is -1 */
+ else if (EQ(newtime, Four)) {
+ return(-1);
+ }
+ else {
+ return ( (int) newtime.d);
+ }
+}
+\f
+
+/* Given a fulltime and basictime,
+ * figure out how many dots there must have been.
+ * Start with basictime as a RATIONAL. If equal to fulltime, fine, we are
+ * done. Otherwise, keep adding 50% of previous value until it is equal.
+ * The number of times we have to do this is the number of dots */
+
+int
+recalc_dots(fulltime, basictime)
+
+RATIONAL fulltime;
+int basictime;
+
+{
+ RATIONAL rat_basictime;
+ RATIONAL halftime; /* half of previous note or dot */
+ int dots;
+
+ if (basictime == 0) {
+ /* special case of double whole */
+ rat_basictime.n = 2;
+ rat_basictime.d = 1;
+ }
+ else if (basictime == -1) {
+ /* special case of quad whole */
+ rat_basictime.n = 4;
+ rat_basictime.d = 1;
+ }
+ else {
+ rat_basictime.n = 1;
+ rat_basictime.d = basictime;
+ }
+
+ halftime = rmul(rat_basictime, One_half);
+ for (dots = 0; LT(rat_basictime, fulltime); dots++) {
+ rat_basictime = radd(rat_basictime, halftime);
+ halftime = rmul(halftime, One_half);
+ }
+ return(dots);
+}
+\f
+
+/* make sure all the GRPSYL fields for a grace group are valid */
+
+static void
+check_grace(grpsyl_item_p, fname, lineno)
+
+struct GRPSYL *grpsyl_item_p; /* which grace group to check */
+char *fname; /* file name for error messages */
+int lineno; /* in input, for error messages */
+
+{
+ int n; /* index through notelist */
+
+ if (grpsyl_item_p->dots != 0) {
+ l_yyerror(fname, lineno, "can't have dots on grace notes");
+ }
+
+ else if (grpsyl_item_p->slash_alt == 1) {
+ if ( (grpsyl_item_p->prev != (struct GRPSYL *) 0
+ && grpsyl_item_p->prev->grpvalue == GV_ZERO)
+ || (grpsyl_item_p->next != (struct GRPSYL *) 0
+ && grpsyl_item_p->next->grpvalue == GV_ZERO)) {
+ l_yyerror(fname, lineno,
+ "slash only allowed on single grace note");
+ }
+ }
+
+ else if (grpsyl_item_p->slash_alt > 1) {
+ l_yyerror(fname, lineno, "only 1 slash allowed on grace note");
+ }
+
+ if (grpsyl_item_p->basictime < 4) {
+ l_yyerror(fname, lineno,
+ "grace note must be quarter note or shorter");
+ }
+
+ /* can't mix quarter grace notes (which don't have stems) with
+ * shorter grace notes (that do have stems and get beamed) */
+ if (grpsyl_item_p->basictime == 4 &&
+ ((grpsyl_item_p->prev != (struct GRPSYL *) 0
+ && grpsyl_item_p->prev->grpvalue == GV_ZERO
+ && grpsyl_item_p->prev->basictime > 4) ||
+ (grpsyl_item_p->next != (struct GRPSYL *) 0
+ && grpsyl_item_p->next->grpvalue == GV_ZERO
+ && grpsyl_item_p->next->basictime > 4))) {
+ l_yyerror(fname, lineno,
+ "can't mix quarter and shorter grace notes");
+ /* set to shorter to avoid any future error messages */
+ grpsyl_item_p->basictime = 8;
+ }
+
+ if (is_tab_staff(grpsyl_item_p->staffno) == YES) {
+ for (n = 0; n < grpsyl_item_p->nnotes; n++) {
+ if (HASBEND(grpsyl_item_p->notelist[n])) {
+ l_yyerror(fname, lineno,
+ "can't have bend on grace note");
+ break;
+ }
+ }
+ }
+ else if (grpsyl_item_p->prev != (struct GRPSYL *) 0) {
+
+ for (n = 0; n < grpsyl_item_p->prev->nnotes; n++) {
+ if (grpsyl_item_p->prev->notelist[n].is_bend) {
+ l_yyerror(fname, lineno,
+ "can't have bend on grace note");
+ break;
+ }
+ }
+ }
+
+
+ if (grpsyl_item_p->next == (struct GRPSYL *) 0) {
+ l_yyerror(fname, lineno,
+ "grace note cannot be last thing in measure");
+ }
+
+ if (grpsyl_item_p->beamloc == STARTITEM) {
+ l_yyerror(fname, lineno,
+ "custom beaming not allowed on grace notes");
+ }
+
+ if (grpsyl_item_p->stemdir != UNKNOWN) {
+ l_warning(fname, lineno,
+ "stem direction not allowed on grace notes");
+ }
+
+ /* Only first and last in a series of grace are allowed
+ * to have stem length specified, and then both have to be.
+ * If this one is first of a series, do the check.
+ */
+ if ( (grpsyl_item_p->prev == 0
+ || grpsyl_item_p->prev->grpvalue != GV_ZERO)
+ && grpsyl_item_p->next != 0
+ && grpsyl_item_p->next->grpvalue == GV_ZERO) {
+ struct GRPSYL *gs_p;
+ for (gs_p = grpsyl_item_p->next;
+ gs_p->next != 0 &&
+ gs_p->next->grpvalue == GV_ZERO;
+ gs_p = gs_p->next) {
+ if (gs_p->stemlen != STEMLEN_UNKNOWN) {
+ l_warning(fname, lineno,
+ "stem length cannot be specified in the middle of a series of grace notes");
+ gs_p->stemlen = STEMLEN_UNKNOWN;
+ }
+ }
+ if ( (gs_p->stemlen == STEMLEN_UNKNOWN) !=
+ (grpsyl_item_p->stemlen == STEMLEN_UNKNOWN) ) {
+ l_warning(fname, lineno,
+ "stem length must be specified on both first and last grace or on neither");
+ gs_p->stemlen = STEMLEN_UNKNOWN;
+ grpsyl_item_p->stemlen = STEMLEN_UNKNOWN;
+ }
+ }
+}
+\f
+
+/* given a GRPSYL struct, fill in the font and size for all the
+ * strings in the with list */
+
+static void
+fix_strlist(gs_p, font, size, fname, lineno)
+
+struct GRPSYL *gs_p; /* fix all with lists in this list of GRPSYLS */
+int font; /* set their default font to this */
+int size; /* set their default size to this */
+char *fname; /* file name for error messages */
+int lineno; /* input line number for error messages */
+
+{
+ register int n;
+
+
+ if (gs_p->grpcont != GC_NOTES && gs_p->nwith > 0) {
+ l_warning(fname, lineno,
+ " 'with' items on rest or space ignored");
+ gs_p->nwith = 0;
+ return;
+ }
+
+ for (n = 0; n < gs_p->nwith; n++) {
+ (void) fix_string(gs_p->withlist[n], font, size,
+ fname, lineno);
+ }
+}
+\f
+
+/* when a tuplet begins, mark tuplet state accordingly, and keep track to
+ * mark subsequent notes till the end of the tuplet. */
+
+void
+begin_tuplet()
+
+{
+ if ((Tuplet_state == INITEM) || (Tuplet_state == STARTITEM)) {
+ yyerror("nested tuplets not allowed");
+ return;
+ }
+
+ /* just remember we are starting a tuplet. When we actual get
+ * a note, we will mark it appropriately (in link_notegroup() ) */
+ Tuplet_state = STARTITEM;
+}
+\f
+
+/* once we reach the end of a tuplet, adjust all the time values */
+
+void
+end_tuplet(tupcont, tuptime, printtup, tupside)
+
+int tupcont; /* number to print on top of tuplet */
+RATIONAL tuptime; /* what time value to stuff tuplet into. If 0,
+ * then use the next lower power of 2 of tupcont */
+int printtup; /* one of the PT_* values, specifying whether to print
+ * number and bracket */
+int tupside; /* side at which to print number/bracket */
+
+{
+ RATIONAL mult_factor; /* how much to adjust due to tuplet */
+ int num_non_grace = 0; /* how many non-grace notes in tuplet */
+ int factor; /* numerator of mult_factor */
+ RATIONAL tot_time; /* total time taken by tuplet by adding up
+ * the un-adjusted times. */
+ struct GRPSYL *gs_p; /* walk through tuplet list */
+
+
+
+ /* future notes that come in are not in this tuplet */
+ Tuplet_state = NOITEM;
+
+ if (tupcont <= 1) {
+ yyerror("tuplet number must be greater than 1");
+ return;
+ }
+
+ if ( (printtup == PT_NEITHER) && (tupside != PL_UNKNOWN) ) {
+ l_warning(Curr_filename, yylineno,
+ "when tuplet number is not printed, tuplet side is ignored");
+ }
+
+ if (EQ(tuptime, Zero)) {
+ /* this means user didn't specify, so we have to use
+ * the next lower power of two */
+ if ( (tupcont & (tupcont - 1)) == 0) {
+ yyerror("if tuplet number is a power of 2, tuplet time must be given as well");
+ return;
+ }
+
+ /* guess MAXBASICTIME, then keep taking the next
+ * lower power of 2 until we get under the tupcont:
+ * that's the right value to use */
+ for (factor = MAXBASICTIME; factor > tupcont; factor >>= 1) {
+ ;
+ }
+ /* determine what to multiple each fulltime by */
+ mult_factor.n = factor;
+ mult_factor.d = tupcont;
+ rred(&mult_factor);
+ }
+ else {
+ /* figure out adjustment based on user-specified amount of
+ * time the tuplet is supposed to take */
+ tot_time = Zero;
+ for (gs_p = Tuplet_list_p; gs_p != (struct GRPSYL *) 0;
+ gs_p = gs_p->next) {
+ if (gs_p->grpvalue != GV_ZERO) {
+ tot_time = radd(tot_time, gs_p->fulltime);
+ }
+ }
+ rred(&tuptime);
+ rred(&tot_time);
+ mult_factor = rdiv(tuptime, tot_time);
+ rred(&mult_factor);
+
+ /* if factor is <= 1/2 or >= 2, the user must have specified
+ * the wrong note lengths */
+ if (LE(mult_factor, One_half) || GE(mult_factor, Two)) {
+ yyerror("illegal tuplet: values couldn't add up to specified tuplet time value");
+ }
+ }
+
+ /* go through the list, filling in tupcont, tuptime, and adjusting
+ * fulltime of each note */
+ for ( ; Tuplet_list_p != (struct GRPSYL *) 0;
+ Tuplet_list_p = Tuplet_list_p->next) {
+
+ Tuplet_list_p->tupcont = (short) tupcont;
+ Tuplet_list_p->printtup = printtup;
+ Tuplet_list_p->tupside = tupside;
+
+ if (Tuplet_list_p->grpvalue != GV_ZERO) {
+ num_non_grace++;
+ if (Tuplet_list_p->next != (struct GRPSYL *) 0 ||
+ num_non_grace >= 1) {
+ /* adjust fulltime */
+ Tuplet_list_p->fulltime =
+ rmul(Tuplet_list_p->fulltime,
+ mult_factor);
+ }
+ }
+ else if (num_non_grace == 0) {
+ /* don't include leading grace notes in tuplet */
+ Tuplet_list_p->tuploc = NOITEM;
+ Tuplet_list_p->next->tuploc = STARTITEM;
+ }
+
+ /* if this is the end of the list, mark end of tuplet */
+ if (Tuplet_list_p->next == (struct GRPSYL *) 0) {
+
+ if (Tuplet_list_p->grpvalue == GV_ZERO) {
+ yyerror("can't end tuplet with grace note");
+ }
+
+ if(num_non_grace == 1) {
+ Tuplet_list_p->tuploc = LONEITEM;
+ break;
+ }
+ else {
+ Tuplet_list_p->tuploc = ENDITEM;
+ }
+ }
+ }
+}
+\f
+
+/* check that all voices are actually present in a measure, add a measure
+ * space for any that are missing. Also make sure any measure repeats
+ * are correct: if more than one voice and one is a measure repeat,
+ * either all must be measure repeats, or those that aren't must be
+ * measure spaces, in which case the spaces are turned into measure repeats.
+ * Also fill in the mrptnum field of measure repeat STAFF
+ * to be the count of repeated measures.
+ */
+
+static void
+check4missing_voices(list_p)
+
+struct MAINLL *list_p; /* list of STAFFs */
+
+{
+ register int s; /* walk through staff list */
+ int v; /* index through voices */
+ int numvoices; /* how many voices on current staff */
+
+
+ debug(4, "check4missing_voices");
+
+ if (list_p == (struct MAINLL *) 0) {
+ pfatal("null list passed to check4missing_voices()");
+ }
+
+ /* check each staff */
+ for ( s = 1; s <= Score.staffs; s++) {
+
+ if (list_p->str != S_STAFF || list_p->u.staff_p->staffno != s) {
+ if (Errorcount > 0) {
+ /* if the input is garbage, we might get called
+ * with strange things in the main list. We
+ * would have already exclaimed about
+ * the errors, so don't bother to try to
+ * deal with the mess, just return */
+ return;
+ }
+ else {
+ /* if input was good, we shouldn't get here */
+ pfatal("info about staff %d not in list", s);
+ }
+ }
+
+ /* insert space for any missing voices */
+ numvoices = vscheme_voices(svpath(s, VSCHEME)->vscheme);
+ for (v = 0; v < numvoices; v++) {
+ if (list_p->u.staff_p->groups_p[v]
+ == (struct GRPSYL *) 0) {
+ add_meas_space( &(list_p->u.staff_p->groups_p[v]),
+ s, v + 1);
+ }
+ }
+
+ /* fix up any measure repeats */
+ fix_mrpt(list_p);
+
+ if (list_p->next != (struct MAINLL *) 0) {
+ list_p = list_p->next;
+ }
+ }
+}
+\f
+
+/* fill in measure space for empty voice */
+
+void
+add_meas_space(gs_p_p, staff, voice)
+
+struct GRPSYL **gs_p_p; /* where to put space */
+int staff;
+int voice;
+
+{
+ struct GRPSYL *grpsyl_p;
+
+
+ grpsyl_p = newGRPSYL(GS_GROUP);
+ *gs_p_p = grpsyl_p;
+
+ grpsyl_p->staffno = (short) staff;
+ grpsyl_p->vno = (short) voice;
+ grpsyl_p->basictime = -1;
+ grpsyl_p->is_meas = YES;
+
+ /* We are creating a line that doesn't appear in the user's input.
+ * However, if we make it an anonymous line, if this grpsyl ever
+ * gets referenced to print an error message (which it might--
+ * like if user tries to tie something into this generated measure
+ * space) the user will have no clue as to where the problem is in
+ * their input. So put in the current file/line which will point to
+ * the bar line at the end of the measure, which will at least point
+ * the user to the right general area. */
+ grpsyl_p->inputfile = Curr_filename;
+ grpsyl_p->inputlineno = (short) yylineno;
+ grpsyl_p->grpcont = GC_SPACE;
+
+ /* in another place, one compiler didn't fill in properly
+ * when I assigned Score.time directly in one step, so to
+ * take no chances, do numerator and denominator separately */
+ grpsyl_p->fulltime.n = Score.time.n;
+ grpsyl_p->fulltime.d = Score.time.d;
+}
+\f
+/* given a MAINLL that points to a STAFF, check if that staff is a measure
+ * repeat, and if so, validate and normalize it
+ */
+
+static void
+fix_mrpt(mll_p)
+
+struct MAINLL *mll_p; /* points to a STAFF */
+
+{
+ struct GRPSYL *gs_voice_p[MAXVOICES]; /* groups for each voice */
+ struct GRPSYL *prevgrp_p;
+ struct STAFF *staff_p;
+ struct MAINLL *prevmll_p; /* measure being repeated */
+ int voice_is_mrpt[MAXVOICES]; /* boolean for each voice */
+ int found_mrpt;
+ int found_non_mrpt; /* something other than mrpt or ms */
+ int staff;
+ int v;
+
+
+ /* find out if any voice is a measure repeat */
+ found_mrpt = NO;
+ found_non_mrpt = NO;
+ for (v = 0; v < MAXVOICES; v++) {
+ gs_voice_p[v] = mll_p->u.staff_p->groups_p[v];
+ voice_is_mrpt[v] = is_mrpt(gs_voice_p[v]);
+ if (voice_is_mrpt[v] == YES) {
+ found_mrpt = YES;
+ }
+ else if (is_ms(gs_voice_p[v]) == NO) {
+ found_non_mrpt = YES;
+ }
+ }
+
+ /* if none are a measure repeat, we are done */
+ if (found_mrpt == NO) {
+ return;
+ }
+
+ /* At least one must be a meas repeat. If the others aren't
+ * either also a measure repeat or a measure space, user error. */
+ if (found_non_mrpt == YES) {
+ l_yyerror(gs_voice_p[0]->inputfile, gs_voice_p[0]->inputlineno,
+ "if one voice is mrpt, other voices cannot contain notes or rests");
+ return;
+ }
+
+ staff_p = mll_p->u.staff_p;
+ staff = staff_p->staffno;
+
+ /* At this point, we have at least one voice that is mrpt, and
+ * any other voices that exist are either mrpt or ms.
+ * Find the previous measure to find out how many measures of
+ * mrpt we have in a row, to fill in the mrptnum field.
+ * But before calling prevgrpsyl(), need to make sure the staffno and
+ * vno are filled in on the GRSPYL we pass to it, since we're so early
+ * in parsing that hasn't happened yet, but prevgrpsyl() needs them.
+ * We use the GRPSYL for voice 1, since we know that always exists.
+ */
+ gs_voice_p[0]->staffno = staff;
+ gs_voice_p[0]->vno = 1;
+ prevmll_p = mll_p;
+ if ((prevgrp_p = prevgrpsyl(gs_voice_p[0], &prevmll_p)) == (struct GRPSYL *) 0) {
+ /* We fell off the top of the main list */
+ l_yyerror(gs_voice_p[0]->inputfile, gs_voice_p[0]->inputlineno,
+ "mrpt cannot be used on the first measure");
+
+ /* Force to measure space, so that if there are subsequent
+ * mrpt measures, they don't give more errors; no reason
+ * to complain more than once */
+ for (v = 0; v < MAXVOICES; v++) {
+ if (gs_voice_p[v] != (struct GRPSYL *) 0) {
+ gs_voice_p[v]->grpcont = GC_SPACE;
+ }
+ }
+ return;
+ }
+
+ /* Having a mrpt after a multirest doesn't make sense. At best,
+ * it is ambiguous: should we repeat the multirest or the last
+ * measure of rest? If the former, we have big problems if one
+ * staff has a mrpt and another doesn't. If it's the latter, why
+ * doesn't the user just use mr? That would be smaller and clearer. */
+ if (prevgrp_p->basictime < -1) {
+ l_yyerror(gs_voice_p[0]->inputfile, gs_voice_p[0]->inputlineno,
+ "mrpt cannot be used in measure after multirest");
+ for (v = 0; v < MAXVOICES; v++) {
+ if (gs_voice_p[v] != (struct GRPSYL *) 0) {
+ gs_voice_p[v]->grpcont = GC_SPACE;
+ }
+ }
+ return;
+ }
+
+ if (is_mrpt(prevgrp_p) == YES) {
+ /* Our current one must be numbered
+ * one more than the previous one */
+ staff_p->mrptnum = prevmll_p->u.staff_p->mrptnum + 1;
+ }
+ else {
+ /* if this happens to be the first mrpt, it is numbered "2" */
+ staff_p->mrptnum = 2;
+ }
+
+ /* Certain parameter changes are not allowed in the middle of
+ * runs of measure repeats because they cause the contents of
+ * the measure to be too different to make sense. These
+ * include changes in time signature, defoct, transpose.
+ * So back up from the mrpt measure to its preceeding measure,
+ * checking for any SSVs that might have something illegal in them.
+ */
+ for (mll_p = mll_p->prev; mll_p != prevmll_p; mll_p = mll_p->prev) {
+
+ if (mll_p->str == S_SSV) {
+ if (chk_mrpt_ssv_interactions(mll_p->u.ssv_p,
+ gs_voice_p[0], staff) == NO) {
+ /* Force to measure space, so that if
+ * there are subsequent mrpt measures,
+ * they don't give more errors; no reason
+ * to complain more than once */
+ for (v = 0; v < MAXVOICES; v++) {
+ if (gs_voice_p[v] != (struct GRPSYL *) 0) {
+ gs_voice_p[v]->grpcont = GC_SPACE;
+ }
+ }
+ return;
+ }
+ }
+ }
+
+ /* If doing MIDI, expand the measure repeat to what it is repeating */
+ if (Doing_MIDI == YES) {
+ for (v = 0; v < MAXVOICES; v++) {
+ struct GRPSYL *g_p;
+
+ free_grpsyls(staff_p->groups_p[v]);
+ /* Note that the notelist does need to be copied,
+ * (arg 2 == YES) because even though coords
+ * are not used in MIDI, vcombine code may delete
+ * the list, so it cannot be shared across groups.
+ */
+ staff_p->groups_p[v] = clone_gs_list(
+ prevmll_p->u.staff_p->groups_p[v], YES);
+ /* The cloned list may already have breakbeam set,
+ * which will confuse has_cust_beaming(). For MIDI
+ * purposes, we don't care about beams anyway,
+ * much less subbeams, and breakbeam will get set
+ * properly later anyway on these groups,
+ * so just set to NO here. */
+ for (g_p = staff_p->groups_p[v]; g_p != 0; g_p = g_p->next) {
+ g_p->breakbeam = NO;
+ }
+ }
+ }
+ else {
+ /* We force all to GC_NOTES to make sure they are all mrpt,
+ * even if some were originally ms. */
+ for (v = 0; v < MAXVOICES; v++) {
+ if (gs_voice_p[v] != (struct GRPSYL *) 0) {
+ gs_voice_p[v]->grpcont = GC_NOTES;
+ }
+ }
+ }
+}
+\f
+
+/* given an SSV found while searching up the main list for a measure repeat
+ * defining measure, figure out whether having a measure repeat is valid or
+ * not. Some SSV changes alter things so much that a measure repeat no longer
+ * makes sense, so we block it. Return YES if all seems well, NO if not.
+ */
+
+/* Here is the list of things we do NOT allow user to change between a
+ * mrpt and the (earlier) measure that defines it */
+static struct Disallowed_ssv_fields {
+ int field; /* index of the field in SSV "used" array */
+ char * name; /* to use in error message */
+} mrpt_ssv_list[] = {
+ { TIME, "time" },
+ { DEFOCT, "defoct" },
+ { CLEF, "clef" },
+ { TRANSPOSITION, "transpose" },
+ { ADDTRANSPOSITION, "addtranspose" },
+ { NUMSTAFF, "staffs" },
+ { 0, (char *) 0 } /* end the list */
+};
+
+static int
+chk_mrpt_ssv_interactions(ssv_p, gs_p, staffno)
+
+struct SSV *ssv_p;
+struct GRPSYL *gs_p;
+int staffno;
+
+{
+ int ret = YES; /* return value after all checks */
+ int err = NO; /* did we find error this time through loop? */
+ int field; /* index into used array in SSV */
+ int i; /* loop through list of disallowed things */
+
+
+ /* check all possible thing that we don't allow. Complain about
+ * as many errors as we find. Some of these things only occur in
+ * score or score/staff context, but it's easier to just make
+ * the code very general; if the field isn't used, things will still
+ * work just fine.
+ */
+ for (i = 0; mrpt_ssv_list[i].name != (char *) 0; i++) {
+ field = mrpt_ssv_list[i].field;
+ err = NO;
+
+ switch (ssv_p->context) {
+
+ case C_SCORE:
+ /* for things that can be overriden on staff
+ * and/or voice, the score one will only apply
+ * if there isn't an override in effect */
+ if (ssv_p->used[field] == YES) {
+ if (Staff[staffno-1].used[field] == YES) {
+ /* overridden by staff, so ignore */
+ break;
+ }
+ if (voices_override(staffno, field) == YES) {
+ /* overridden by all voices; ignore */
+ break;
+ }
+ err = YES;
+ }
+ break;
+
+ case C_STAFF:
+ case C_VOICE:
+ if (ssv_p->staffno != staffno) {
+ /* This applies to some other staff. Since this
+ * SSV is totally irrrelevant, we can return,
+ * rather than loop through checking for other
+ * possible errors. */
+ return(YES);
+ }
+ if (ssv_p->used[field] == YES) {
+ if (ssv_p->context == C_STAFF &&
+ voices_override(staffno, field) == YES) {
+ /* overridden on all voices, so ignore */
+ break;
+ }
+ err = YES;
+ }
+ break;
+
+ default:
+ pfatal("bad context in mrpt/ssv check");
+ break;
+ }
+
+ if (err == YES) {
+ /* this field change not allowed */
+ l_yyerror(gs_p->inputfile, gs_p->inputlineno,
+ "can't use mrpt after %s change",
+ mrpt_ssv_list[i].name);
+ ret = NO;
+ }
+ }
+
+ return(ret);
+}
+\f
+
+/* Returns YES if the given SSV field is overriden by all voices
+ * on the given staff, NO if not. */
+
+static int
+voices_override(staff, field)
+
+int staff; /* check this staff */
+int field; /* check this field */
+
+{
+ int numvoices;
+ int v;
+
+ numvoices = vscheme_voices(svpath(staff, VSCHEME)->vscheme);
+ for (v = 0; v < numvoices; v++) {
+ if (Voice[staff - 1][v].used[field] == NO) {
+ /* this voice does not override */
+ return(NO);
+ }
+ }
+ return(YES);
+}
+\f
+
+/* return YES if given GRPSYL represents a measure repeat */
+
+int
+is_mrpt(gs_p)
+
+struct GRPSYL *gs_p;
+
+{
+ return (gs_p != (struct GRPSYL *) 0 && gs_p->is_meas == YES
+ && gs_p->grpcont == GC_NOTES && gs_p->nnotes == 0) ? YES : NO;
+}
+
+/* return YES if given GRPSYL represents a measure space */
+
+static int
+is_ms(gs_p)
+struct GRPSYL *gs_p;
+
+{
+ /* non-existent is like measure space */
+ if (gs_p == (struct GRPSYL *) 0) {
+ return(YES);
+ }
+ return (gs_p->is_meas == YES && gs_p->grpcont == GC_SPACE) ? YES : NO;
+}
+\f
+
+/* sort the notes to be top to bottom */
+
+static void
+sort_notes(grpsyl_p, fname, lineno)
+
+struct GRPSYL *grpsyl_p; /* sort the notes off this GRPSYL */
+char *fname; /* file name for error messages */
+int lineno; /* input line number */
+
+{
+ register int n;
+ struct NOTE *highest_p; /* note with highest pitch on a staff */
+ struct NOTE *lowest_p; /* note with lowest pitch on a staff */
+ int othervis = -1; /* staff number of adjacent visible staff */
+
+
+ if (grpsyl_p->nnotes < 2) {
+ /* nothing to sort! */
+ return;
+ }
+
+ /* If have cross-staff stemming, do extra error checks */
+ if (grpsyl_p->stemto != CS_SAME) {
+
+ if (Doing_tab_staff == YES) {
+ l_yyerror(grpsyl_p->inputfile, grpsyl_p->inputlineno,
+ "stemming with another staff is not allowed on a tablature staff");
+ }
+ else if (svpath(grpsyl_p->staffno, STAFFLINES)->stafflines != 5) {
+ l_yyerror(grpsyl_p->inputfile, grpsyl_p->inputlineno,
+ "stemming to another staff only allowed from a 5-line staff");
+ }
+ if (input_style(grpsyl_p->staffno, grpsyl_p->vno)
+ == IS_CHORD_INPUT) {
+ l_yyerror(grpsyl_p->inputfile, grpsyl_p->inputlineno,
+ "stemming to another staff not allowed on chord-at-a-time input");
+ }
+
+ if (grpsyl_p->stemto == CS_ABOVE) {
+ for (othervis = grpsyl_p->staffno - 1; othervis > 0; othervis--) {
+ if (svpath(othervis, VISIBLE)->visible == YES) {
+ if (svpath(grpsyl_p->staffno, STAFFLINES)->stafflines != 5
+ || is_tab_staff(othervis)) {
+ l_yyerror(grpsyl_p->inputfile, grpsyl_p->inputlineno,
+ "for stem with staff above, preceeding visible staff must be a normal 5-line staff");
+ }
+ break;
+ }
+ }
+ if (othervis <= 0) {
+ l_yyerror(grpsyl_p->inputfile, grpsyl_p->inputlineno,
+ "can't stem with above from top visible staff");
+ }
+ }
+ else if (grpsyl_p->stemto == CS_BELOW) {
+ for (othervis = grpsyl_p->staffno + 1; othervis <= Score.staffs; othervis++) {
+ if (svpath(othervis, VISIBLE)->visible == YES) {
+ if (svpath(grpsyl_p->staffno, STAFFLINES)->stafflines != 5
+ || is_tab_staff(othervis)) {
+ l_yyerror(grpsyl_p->inputfile, grpsyl_p->inputlineno,
+ "for stem with staff below, following visible staff must be a normal 5-line staff");
+ }
+ break;
+ }
+ }
+ if (othervis >= Score.staffs + 1) {
+ l_yyerror(grpsyl_p->inputfile, grpsyl_p->inputlineno,
+ "can't stem with below from bottom visible staff");
+ }
+ }
+
+ /* The two staffs must have the same staffscale.
+ * Use floating point comparision for "close enough" */
+ if (othervis > 0 && othervis <= Score.staffs) {
+ if (fabs(svpath(othervis,STAFFSCALE)->staffscale -
+ svpath(grpsyl_p->staffno, STAFFSCALE)->staffscale) > 0.001) {
+ l_yyerror(grpsyl_p->inputfile, grpsyl_p->inputlineno,
+ "staff being stemed to must have same staffscale");
+ }
+ }
+ }
+
+ /* If this group is stemmed to another staff,
+ * we have to make sure the notes on the two staffs don't overlap,
+ * since we can't handle duplicate notes,
+ * and it's kind of silly anyway.
+ * At this point, the stemto_idx will be at the first
+ * "other staff" note. In the case of stem with above,
+ * we need to adjust that to be at the last normal staff group,
+ * because that is the convention we use. In any case, once
+ * we verify there is no overlap, we can go ahead and sort the
+ * group as usual, since we know that will end up sorting each
+ * staff's notes properly.
+ */
+ if (grpsyl_p->stemto == CS_ABOVE) {
+ /* Find highest note on normal staff */
+ if (grpsyl_p->stemto_idx == 0) {
+ /* no notes at all on normal staff */
+ highest_p = 0;
+ n = 0;
+ }
+ else {
+ highest_p = &(grpsyl_p->notelist[0]);
+ for (n = 1; n < grpsyl_p->stemto_idx; n++) {
+ if (notecomp(&(grpsyl_p->notelist[n]), highest_p) > 0) {
+ highest_p = &(grpsyl_p->notelist[n]);
+ }
+ }
+ }
+ /* Find lowest note on above staff */
+ if (grpsyl_p->stemto_idx == grpsyl_p->nnotes) {
+ /* Actually, we don't currently allow this case
+ * (blocked in parsing code),
+ * but if we ever do, this code should handle it...
+ */
+ lowest_p = 0;
+ }
+ else {
+ lowest_p = &(grpsyl_p->notelist[n]);
+ for ( ; n < grpsyl_p->nnotes; n++) {
+ if (notecomp(&(grpsyl_p->notelist[n]), lowest_p) < 0) {
+ lowest_p = &(grpsyl_p->notelist[n]);
+ }
+ }
+ }
+ /* Make sure there is no overlap */
+ if (highest_p != 0 && lowest_p != 0 &&
+ notecomp(highest_p, lowest_p) <= 0) {
+ l_yyerror(grpsyl_p->inputfile, grpsyl_p->inputlineno,
+ "the 'with above' notes are not allowed to overlap with notes on the normal staff");
+ }
+
+ /* With CS_ABOVE, the index is supposed to point to the last on
+ * the normal, so adjust to do that. */
+ grpsyl_p->stemto_idx = grpsyl_p->nnotes - grpsyl_p->stemto_idx - 1;
+ }
+ else if (grpsyl_p->stemto == CS_BELOW) {
+ /* Do analogous for below */
+ /* Find lowest note on normal staff */
+ if (grpsyl_p->stemto_idx == 0) {
+ /* no notes at all on normal staff */
+ lowest_p = 0;
+ n = 0;
+ }
+ else {
+ lowest_p = &(grpsyl_p->notelist[0]);
+ for (n = 1; n < grpsyl_p->stemto_idx; n++) {
+ if (notecomp(&(grpsyl_p->notelist[n]), lowest_p) < 0) {
+ lowest_p = &(grpsyl_p->notelist[n]);
+ }
+ }
+ }
+ /* Find highest note on below staff */
+ if (grpsyl_p->stemto_idx == grpsyl_p->nnotes) {
+ highest_p = 0;
+ n = 0;
+ }
+ else {
+ highest_p = &(grpsyl_p->notelist[n]);
+ for (n++ ; n < grpsyl_p->nnotes; n++) {
+ if (notecomp(&(grpsyl_p->notelist[n]), highest_p) > 0) {
+ highest_p = &(grpsyl_p->notelist[n]);
+ }
+ }
+ }
+ /* Make sure there is no overlap */
+ if (highest_p != 0 && lowest_p != 0 &&
+ notecomp(highest_p, lowest_p) <= 0) {
+ l_yyerror(grpsyl_p->inputfile, grpsyl_p->inputlineno,
+ "the 'with below' notes are not allowed to overlap with notes on the normal staff");
+ }
+ }
+
+ /* sort top to bottom */
+ qsort( (char *) grpsyl_p->notelist, (unsigned int) grpsyl_p->nnotes,
+ sizeof (struct NOTE), notecomp);
+
+ /* now that they are sorted, check for duplicates. */
+ for (n = 0; n < grpsyl_p->nnotes - 1; n++) {
+ if (notecomp(&(grpsyl_p->notelist[n]),
+ &(grpsyl_p->notelist[n+1])) == 0) {
+ /* For voice-at-a-time, duplicate is an error.
+ * For chord-at-a-time, we merge them, except that
+ * for tablature, if the frets don't match we
+ * can't merge them. */
+ if (input_style(grpsyl_p->staffno, grpsyl_p->vno)
+ == IS_VOICE_INPUT ||
+ (Doing_tab_staff == YES &&
+ grpsyl_p->notelist[n].FRETNO !=
+ grpsyl_p->notelist[n+1].FRETNO)
+ ) {
+ if (Doing_tab_staff == YES) {
+ struct STRINGINFO *strinfo_p;
+
+ strinfo_p = &(svpath(grpsyl_p->staffno,
+ STAFFLINES)->strinfo[ (int)
+ grpsyl_p->notelist[n].STRINGNO]);
+ l_yyerror(fname, lineno,
+ "string %s occurred more than once in a single chord",
+ format_string_name(
+ strinfo_p->letter,
+ strinfo_p->accidental,
+ strinfo_p->nticks));
+ }
+ else {
+ l_yyerror(fname, lineno,
+ "pitch %c%d occurred more than once in a single chord",
+ grpsyl_p->notelist[n].letter,
+ grpsyl_p->notelist[n].octave);
+ }
+ }
+ else {
+ merge_dup_notes(grpsyl_p, n);
+ /* in case there was more than one duplicate,
+ * arrange to check this same one again,
+ * against the group that has taken the place
+ * of the removed group (if any) */
+ n--;
+ }
+ }
+ }
+}
+\f
+
+/* Compare notes. Return 1 if first is lower, -1 if higher, 0 if same.
+ * For tablature, this just compares the strings; for non-tablature,
+ * it just compares pitch and octave, not counting accidentals. */
+
+int
+notecomp(item1_p, item2_p)
+
+#ifdef __STDC__
+const void *item1_p; /* the notes to compare */
+const void *item2_p;
+#else
+char *item1_p; /* the notes to compare */
+char *item2_p;
+#endif
+
+{
+ struct NOTE *note1_p;
+ struct NOTE *note2_p;
+
+ /* cast to proper type */
+ note1_p = (struct NOTE *) item1_p;
+ note2_p = (struct NOTE *) item2_p;
+
+ if (Doing_tab_staff == YES) {
+ /* for tablature, just need to compare the string numbers. */
+ if (note1_p->STRINGNO < note2_p->STRINGNO) {
+ return(-1);
+ }
+ else if (note1_p->STRINGNO > note2_p->STRINGNO) {
+ return(1);
+ }
+ else {
+ return(0);
+ }
+ }
+
+ /* first compare octaves */
+ if ( note1_p->octave < note2_p->octave) {
+ return(1);
+ }
+
+ if (note1_p->octave > note2_p->octave) {
+ return(-1);
+ }
+
+ /* if same octaves, compare pitches */
+ if (Letshift[note1_p->letter - 'a'] < Letshift[note2_p->letter - 'a']) {
+ return(1);
+ }
+
+ if (Letshift[note1_p->letter - 'a'] > Letshift[note2_p->letter - 'a']) {
+ return(-1);
+ }
+
+ return(0);
+}
+\f
+
+/* Make sure data ends with some kind of bar line (which can optionally
+ * be followed by blocks). Start at end of main list and go backwards.
+ * If we hit a S_BAR, then all is well.
+ * If we hit a S_STAFF first or beginning of list, we have a problem.
+ * Also does error checks on any FEED at the end of the piece.
+ * It does a similar check on any FEED at the beginning. (It doesn't
+ * really fit the name of the function, but keeps the checks together.)
+ */
+
+void
+check4barline_at_end()
+
+{
+ struct MAINLL *list_p; /* walk through main list */
+ int saw_block = NO; /* if saw an S_BLOCKHEAD */
+
+
+ /* first check for FEED at the beginning */
+ for (list_p = Mainllhc_p; list_p != (struct MAINLL *) NULL;
+ list_p = list_p->next) {
+ if (list_p->str == S_STAFF) {
+ /* no user-supplied feed at beginning */
+ break;
+ }
+ else if (list_p->str == S_FEED) {
+ /* rightmargin applies to previous feed,
+ * but there is no previous feed to the first score */
+ if (list_p->u.feed_p->rightmargin >= 0.0) {
+ l_warning(list_p->inputfile, list_p->inputlineno,
+ "rightmargin on newscore at beginning of piece is ignored");
+ }
+ /* Note: we probably ought to give a
+ * warning for pagefeed here and ignore it,
+ * to be like at the end of a piece.
+ * But this was inadvertently allowed in the past
+ * (it produces a blank page),
+ * so we leave it that way
+ * for backward compatibility.
+ */
+ }
+ }
+
+ for (list_p = Mainlltc_p; list_p != (struct MAINLL *) NULL;
+ list_p = list_p->prev) {
+
+ if (list_p->str == S_BAR) {
+ /* found BAR before STAFF. Good. */
+ /* if user forgot to end an ending, do it for them */
+ if (list_p->u.bar_p->endingloc == INITEM) {
+ list_p->u.bar_p->endingloc = ENDITEM;
+ }
+ else if (list_p->u.bar_p->endingloc == STARTITEM) {
+ l_yyerror(list_p->inputfile, list_p->inputlineno,
+ "can't begin ending on final bar line");
+ }
+
+ if (list_p->u.bar_p->bartype == RESTART) {
+ l_yyerror(list_p->inputfile, list_p->inputlineno,
+ "final bar line cannot be a restart");
+ }
+ return;
+ }
+
+ else if (list_p->str == S_STAFF) {
+ /* Oh-oh. No ending bar line */
+ yyerror("ending bar line missing");
+ return;
+ }
+
+ else if (list_p->str == S_BLOCKHEAD) {
+ saw_block = YES;
+ }
+ else if (list_p->str == S_FEED) {
+ if (list_p->u.feed_p->leftmargin >= 0.0) {
+ l_warning(list_p->inputfile, list_p->inputlineno,
+ "leftmargin on newscore at end of piece is ignored");
+ }
+ }
+ }
+
+ /* if we are here, we went all through the list */
+ if (saw_block == NO) {
+ yyerror("no music data or blocks found in input");
+ }
+}
+\f
+
+/* when user wants a multi-rest, create a STAFF for each staff. Then for
+ * each of them, fill in a GRPSYL with basictime as the negative of the
+ * number of measure, and fulltime as the length of a measure. Attach this
+ * GRPSYL as the only item off of voice 1, and to other voices as well,
+ * if there are other voice and we are doing MIDI. */
+
+void
+add_multirest(nummeas)
+
+int nummeas; /* how many measures in the multi-rest */
+
+{
+ register int s; /*staff index */
+ struct GRPSYL *new_p; /* newly allocated GRPSYL for multirest */
+ int v; /* voice index */
+ int numvoices;
+
+
+ /* if already have notes in this measure, user goofed */
+ if (Got_group == YES) {
+ report_mix_error();
+ return;
+ }
+
+ if (Got_multirest == 1) {
+ yyerror("can't have consecutive multirests (maybe missing bar?)");
+ return;
+ }
+
+ /* we could allow up to 32767 and still fit in a short, but huge
+ * numbers can lead to rational overflow in midi, and who in their
+ * right mind would want that many measures of multirest anyway? */
+ if (rangecheck(nummeas, 2, MAXMULTINUM, "multirest measures") == NO) {
+ return;
+ }
+
+ /* create all the staffs and fill them in */
+ create_staffs();
+ for (s = 1; s <= Score.staffs; s++) {
+ numvoices = vscheme_voices(svpath(s, VSCHEME)->vscheme);
+ for (v = 0; v < numvoices; v++) {
+ if (v == 0 || Doing_MIDI == YES) {
+ Staffmap_p[s]->u.staff_p->groups_p[v] = new_p
+ = newGRPSYL(GS_GROUP);
+ new_p->grpcont = GC_REST;
+ new_p->basictime = -nummeas;
+ new_p->fulltime = Score.time;
+ }
+ }
+ }
+
+ Got_multirest = 1;
+ Got_some_data = YES;
+
+ /* update measure numbers for rehearsal mark and stuff use */
+ Meas_num += nummeas;
+ multi_stuff(nummeas);
+}
+\f
+
+/* this function gets called when we discover user has mixed multi-rest and
+ * music data in a single measure. If we've already reported this on the
+ * current measure, Got_multirest will be 2, so we just return,
+ * otherwise report it and set Got_multirest to 2 */
+
+void
+report_mix_error()
+
+{
+ if (Got_multirest != 2) {
+ yyerror( "can't mix music data and multi-rest in same measure");
+ Got_multirest = 2;
+ }
+}
+\f
+
+/* Recursively free a list of GRPSYLs. If this is a GS_GROUP,
+ * also free the withlist and notelist if they exist,
+ * and anything hanging off the notelist. If this is a GS_SYLLABLE, anything
+ * that is hanging of the grpsyl will NOT be freed.
+ */
+
+void
+free_grpsyls(gs_p)
+
+struct GRPSYL *gs_p; /* what to free */
+
+{
+ int n; /* to index through lists */
+
+ if (gs_p == (struct GRPSYL *) 0) {
+ /* end of recursion */
+ return;
+ }
+
+ if (gs_p->grpsyl == GS_GROUP) {
+ free_notelist(gs_p);
+
+ /* free the withlist */
+ for (n = 0; n < gs_p->nwith; n++) {
+ if (gs_p->withlist[n] != (char *) 0) {
+ FREE(gs_p->withlist[n]);
+ }
+ }
+ if (gs_p->withlist != (char **) 0 && gs_p->nwith > 0) {
+ FREE(gs_p->withlist);
+ }
+ }
+
+ free_grpsyls(gs_p->next);
+ FREE(gs_p);
+}
+\f
+
+/* Free things off of NOTEs in the notelist, if any, plus the list itself */
+
+void
+free_notelist(gs_p)
+
+struct GRPSYL *gs_p;
+
+{
+ int n;
+
+ for (n = 0; n < gs_p->nnotes; n++) {
+ /* free coordinate array, if any */
+ if (gs_p->notelist[n].c != (float *) 0) {
+ FREE(gs_p->notelist[n].c);
+ }
+
+ /* free any slurto lists */
+ if (gs_p->notelist[n].slurtolist != (struct SLURTO *) 0) {
+ FREE(gs_p->notelist[n].slurtolist);
+ }
+ }
+
+ /* free the notelist itself, if any */
+ if (gs_p->notelist != (struct NOTE *) 0 && gs_p->nnotes > 0) {
+ FREE(gs_p->notelist);
+ }
+}
+\f
+
+/* add a slurto note to list */
+
+void
+add_slurto(grpsyl_p, pitch, octave, note_index, slurstyle)
+
+struct GRPSYL *grpsyl_p; /* what group to associate slurto with */
+int pitch; /* 'a' to 'g' */
+int octave;
+int note_index; /* which note in the chord to slur from */
+int slurstyle; /* L_NORMAL, L_DOTTED, or L_DASHED */
+
+{
+ struct NOTE *note_p; /* note to attach to */
+
+
+ if (note_index < 0) {
+ /* user tried to slur from a rest or something like that */
+ yyerror("no note to slur from");
+ return;
+ }
+
+ note_p = &(grpsyl_p->notelist [ note_index ]);
+ if (note_p->nslurto == 0) {
+ /* first time--need to allocate */
+ MALLOC(SLURTO, note_p->slurtolist, 1);
+ }
+
+ /* else re-allocate more space */
+ else {
+ REALLOC(SLURTO, note_p->slurtolist, note_p->nslurto + 1);
+ }
+
+ note_p->slurtolist [ note_p->nslurto ].letter = (char) pitch;
+ note_p->slurtolist [ note_p->nslurto ].octave = (short) octave;
+ note_p->slurtolist [ note_p->nslurto ].slurstyle = (short) slurstyle;
+ /* we'll fix up this value later when we know the right one */
+ note_p->slurtolist [ note_p->nslurto ].slurdir = (short) UNKNOWN;
+
+ (note_p->nslurto)++;
+}
+\f
+
+/* At the beginning of a <> which indicates slurs,
+ * save which slurtolist index we are are on.
+ * When at the end of the slur, we will discover if the user specified a
+ * bend direction for the slurs, and if so, have to go back and fill in
+ * that direction for all the slurtolist items from the saved index to
+ * the end of the list. This is needed since user may have several <>
+ * items with different directions, e.g.,
+ * a<c+>up<g>down<e>
+ */
+
+void
+begin_slur(grpsyl_p, note_index)
+
+struct GRPSYL *grpsyl_p;
+int note_index;
+
+{
+ if (grpsyl_p == 0 || note_index < 0 || note_index >= grpsyl_p->nnotes) {
+ /* must have been bad input */
+ return;
+ }
+ Slur_begin = grpsyl_p->notelist[note_index].nslurto;
+}
+
+/* At the end of a slur, either <> style or "slur" keyword style,
+ * go back and fill in the bulge direction. If note_index is -1,
+ * this is a "slur" that applies to all notes of the group, and
+ * there should be one slurto item on each note.
+ */
+
+void
+set_slurdir(grpsyl_p, note_index, dir)
+
+struct GRPSYL *grpsyl_p;
+int note_index; /* which note's slurtolist to use */
+int dir; /* UP, DOWN, UNKNOWN */
+
+{
+ int n;
+ int i;
+
+ if (note_index == -1) {
+ for (n = 0; n < grpsyl_p->nnotes; n++) {
+ if (grpsyl_p->notelist[n].nslurto >= 1) {
+ grpsyl_p->notelist[n]
+ .slurtolist[grpsyl_p->notelist[n].nslurto-1]
+ .slurdir = dir;
+ }
+ /* If no slurto, should already have
+ * error generated elsewhere */
+ }
+ }
+ else {
+ for (i = Slur_begin; i < grpsyl_p->notelist[note_index].nslurto; i++) {
+ grpsyl_p->notelist[note_index].slurtolist[i].slurdir = dir;
+ }
+ }
+}
+\f
+
+/* given a bend string, return what should be crammed into the
+ * octave field to save this info, using the TABOCT macro. If the string
+ * is incomprehensible, print error, and do what we can. */
+
+/* define states for the simple parser */
+#define DOING_INTEGER 1
+#define DOING_NUMERATOR 2
+#define DOING_DENOMINATOR 3
+#define GOT_ERROR 4
+
+static int
+parse_bend_string(bendstring)
+
+char *bendstring;
+
+{
+ int intpart = 0; /* integer part of bend */
+ int num = 0, den = 1; /* numerator and denominator
+ * of fractional part of bend */
+
+
+ /* if null string, easy to parse */
+ if (bendstring == (char *) 0) {
+ return (TABOCT(0, 0, 0));
+ }
+
+ /* string is in internal format, so skip first 2 bytes, plus any
+ * leading white space */
+ for (bendstring += 2; *bendstring != '\0'; bendstring++) {
+ if (isgraph(*bendstring)) {
+ break;
+ }
+ }
+
+ /* the text "full" is a special case */
+ if (strcmp(bendstring, "full") == 0) {
+ intpart = 1;
+ }
+ else {
+ /* the text better be a number and/or fractional part,
+ * so parse that */
+ int state; /* DOING_INTEGER, DOING_NUMERATOR,
+ * DOING_DENOMINATOR, or GOT_ERROR */
+
+ for (state = DOING_INTEGER;
+ *bendstring != '\0' && state < GOT_ERROR;
+ bendstring++) {
+
+ if (isdigit(*bendstring)) {
+ /* add to the correct item */
+ switch(state) {
+ case DOING_INTEGER:
+ intpart = (intpart * 10) + (*bendstring - '0');
+ break;
+ case DOING_NUMERATOR:
+ num = (num * 10) + (*bendstring - '0');
+ break;
+ case DOING_DENOMINATOR:
+ den = (den * 10) + (*bendstring - '0');
+ break;
+ default:
+ pfatal("bad state in parse_bend_string");
+ break;
+ }
+ }
+
+ /* handle white space */
+ else if (*bendstring == ' ' || *bendstring == '\t') {
+ if (state == DOING_INTEGER) {
+ /* end of integer part */
+ state = DOING_NUMERATOR;
+ }
+ /* ignore any other white space */
+ }
+
+ else if (*bendstring == '/') {
+ /* starting parsing of denominator */
+ den = 0;
+
+ switch (state) {
+
+ case DOING_INTEGER:
+ /* oops. what we thought was the integer
+ * part was really the numerator of the
+ * fractional part. Adjust accordingly. */
+ num = intpart;
+ intpart = 0;
+ state = DOING_DENOMINATOR;
+ break;
+
+ case DOING_NUMERATOR:
+ state = DOING_DENOMINATOR;
+ break;
+
+ case DOING_DENOMINATOR:
+ yyerror("more than one / in bend string");
+ state = GOT_ERROR;
+ break;
+
+ default:
+ pfatal("bad state in parse_bend_string");
+ break;
+ }
+ }
+
+ else {
+ yyerror("invalid character in bend string");
+ state = GOT_ERROR;
+ }
+ }
+ }
+
+ /* make sure we can fit them in our cramped space */
+ (void) rangecheck(intpart, MINBENDINT, MAXBENDINT,
+ "integer part of bend");
+ (void) rangecheck(num, MINBENDNUM, MAXBENDNUM,
+ "numerator of bend fraction");
+ (void) rangecheck(den, MINBENDDEN, MAXBENDDEN,
+ "denominator of bend fraction");
+
+ return (TABOCT(intpart, num, den));
+}
+\f
+
+/* given a tablature GRPSYL, look up the proper string number based on the
+ * letter/accidental that is currently there, and fill in the STRINGNO and
+ * FRETNO fields with their correct values. The slurto items also get
+ * their string letter/accidental values translated to string number. */
+
+static void
+fix_frets(grpsyl_item_p)
+
+struct GRPSYL *grpsyl_item_p;
+
+{
+ int n; /* index through note list */
+ int s; /* index through slurto */
+ struct NOTE *note_p; /* current note */
+ struct STRINGINFO *string_info_p; /* string translation table,
+ * to map between pitch/accidental and
+ * string number */
+ int nstrings; /* how many strings there are */
+
+
+ /* find appropriate string mapping table and its size */
+ string_info_p = Staff[grpsyl_item_p->staffno - 1].strinfo;
+ nstrings = Staff[grpsyl_item_p->staffno - 1].stafflines;
+
+ /* for each note, translate to string number, and put fret in its
+ * proper field */
+ for (n = 0; n < grpsyl_item_p->nnotes; n++) {
+ /* get pointer to the current note in the group */
+ note_p = &(grpsyl_item_p->notelist[n]);
+
+ /* doing mapping from pitch/accidental to string number */
+ note_p->STRINGNO = string_number(string_info_p, nstrings,
+ note_p->letter, note_p->accidental, TMP_NTICKS(note_p));
+
+ /* fill in the correct fret number, now that its space is
+ * available */
+ note_p->FRETNO = TMP_FRET(note_p);
+ note_p->stepsup = 0; /* no longer need this temp space */
+
+ /* also fix up any slurto items */
+ for (s = 0; s < note_p->nslurto; s++) {
+ if (note_p->slurtolist[s].octave == USE_DFLT_OCTAVE) {
+ note_p->slurtolist[s].STRINGNO
+ = note_p->STRINGNO;
+ }
+ }
+ }
+}
+\f
+
+/* look up a letter/acc/nticks combination in the string_info_p table of
+ * size nstrings, and return the index of the string that matched. If none
+ * match, print an error and return 0. However, if the pitch is PP_NO_PITCH,
+ * don't print the error, because an error would already have been printed
+ * earlier, and it just adds confusion to print another one.
+ * Also don't complain about rest and space, because they are legal.
+ */
+
+static int
+string_number(string_info_p, nstrings, letter, accidental, nticks)
+
+struct STRINGINFO *string_info_p; /* string translation table */
+int nstrings; /* number of entries in table */
+int letter;
+int accidental;
+int nticks; /* number of ' marks */
+
+{
+ register int i;
+
+ if (string_info_p == (struct STRINGINFO *) 0) {
+ pfatal("null stringinfo");
+ }
+
+ /* look through string_info list for a matching string */
+ for (i = 0; i < nstrings; i++) {
+ if (string_info_p[i].letter == letter &&
+ string_info_p[i].accidental == accidental &&
+ string_info_p[i].nticks == nticks) {
+ /* found it. return its index */
+ return(i);
+ }
+ }
+
+ /* If letter is PP_NO_PITCH, that means user failed to put a letter
+ * for the first group in the measure. We would have already
+ * exclaimed about that in fix_a_grpsyl_list(), so rather than
+ * generate lots more messages due to the same error,
+ * just silently return the default string of 0.
+ * Rests, spaces, and rpts are also fine--they will get converted to
+ * groups later. Otherwise the error message is needed. */
+ if (letter >= 'a' && letter <= 'g') {
+ /* no match found */
+ l_yyerror(Curr_filename, yylineno, "no '%s' string",
+ format_string_name(letter, accidental, nticks));
+ }
+
+ /* use string 0 as default, to have something to return */
+ return(0);
+}
+\f
+
+/* given a string number and staff number, return the text representation
+ * of that string. Returns pointer to static area. */
+
+char *
+stringname(stringno, staffno)
+
+int stringno;
+int staffno;
+
+{
+ struct STRINGINFO *stringinfo_p;
+
+
+ /* make sure we have a valid string number */
+ if (stringno < 0 || stringno >= Staff[staffno - 1].stafflines) {
+ pfatal("string number %d out of range", stringno);
+ }
+
+ /* get pointer to proper table entry for this string */
+ stringinfo_p = & (Staff[staffno - 1].strinfo[stringno] );
+
+ /* return text representation */
+ return(format_string_name(stringinfo_p->letter,
+ stringinfo_p->accidental,
+ stringinfo_p->nticks));
+}
+\f
+
+/* to print some ticks, print as much of this string as necessary */
+static char tickstring[MAXTICKS + 1];
+
+/* given string letter, accidental, and number of tick marks, return
+ * pointer to static area that contains the text representation of the
+ * string name */
+
+char *
+format_string_name(letter, accidental, nticks)
+
+int letter;
+int accidental;
+int nticks;
+
+{
+ static char name[MAXTICKS + 3]; /* this is what will get returned */
+ int tickoffset = 1; /* where in name that ticks begin */
+ int i;
+
+ /* fill in string letter plus accidental if any */
+ name[0] = (char) letter;
+ if (accidental != 0) {
+ name[1] = (char) accidental;
+ tickoffset++;
+ }
+
+ /* first time through, fill in maximum number of ticks. This makes
+ * it possible to have the right number, even if MAXTICKS changes
+ * some day */
+ if (tickstring[0] == '\0') {
+ for (i = 0; i < MAXTICKS; i++) {
+ tickstring[i] = '\'';
+ }
+ }
+
+ /* add appropriate number of ticks to name */
+ (void) sprintf(name + tickoffset, tickstring + strlen(tickstring) - nticks);
+
+ return(name);
+}
+\f
+
+/* given a list of grpsyls, check that every non-prebend bend has a previous
+ * groups which contains the same string as the bend is on. Also disallow
+ * slashes on groups that just have a bend. */
+
+static void
+check_bends(gs_p, mll_p)
+
+struct GRPSYL *gs_p;
+struct MAINLL *mll_p;
+
+{
+ int n; /* notelist index */
+ int ns; /* slurto index */
+ struct GRPSYL *prevgrp_p; /* previous group in same staff/voice */
+ struct NOTE *prevnote_p; /* note in previous group */
+ int has_bend, has_prebend; /* YES or NO */
+ struct MAINLL *nmll_p;
+
+
+ /* check each group in the list */
+ for ( ; gs_p != (struct GRPSYL *) 0; gs_p = gs_p->next) {
+
+ /* check each note in the group */
+ has_bend = has_prebend = NO;
+ for (n = 0; n < gs_p->nnotes; n++) {
+
+ if (HASBEND(gs_p->notelist[n])
+ && gs_p->notelist[n].FRETNO == NOFRET) {
+
+ /* this is a non-prebend bend, so it needs to
+ * be checked. Find the previous group */
+ has_prebend = YES;
+ nmll_p = mll_p;
+ if ((prevgrp_p = prevgrpsyl(gs_p, &nmll_p))
+ != (struct GRPSYL *) 0) {
+
+ /* find the matching note (string),
+ * If not found, the function will
+ * print an error. */
+ prevnote_p =
+ find_matching_note(prevgrp_p,
+ gs_p->notelist[n].letter,
+ gs_p->notelist[n].octave,
+ "bend");
+
+ if (prevnote_p == (struct NOTE *) 0) {
+ continue;
+ }
+
+ /* previous group not allowed to have
+ * slide other than inward nowhere */
+ for (ns = 0; ns < prevnote_p->nslurto;
+ ns++) {
+ switch (prevnote_p->slurtolist
+ [ns].octave) {
+ case IN_UPWARD:
+ case IN_DOWNWARD:
+ /* these are okay */
+ break;
+ default:
+ l_yyerror(gs_p->inputfile,
+ gs_p->inputlineno,
+ "can't have bend on note following a slide");
+ break;
+ }
+ }
+ }
+ else {
+ yyerror("can't do bend--no previous group");
+ continue;
+ }
+
+ /* slashes are not allowed on bend groups */
+ if (gs_p->slash_alt != 0) {
+ yyerror("slash not allowed with bend");
+ gs_p->slash_alt = 0;
+ }
+ }
+ else if (HASBEND(gs_p->notelist[n])
+ && gs_p->notelist[n].FRETNO != NOFRET) {
+ has_bend = YES;
+ }
+ }
+
+ if (has_bend == YES && has_prebend == YES) {
+ yyerror("mixture of prebend and bend not allowed on the same chord");
+ }
+ }
+}
+\f
+
+/*
+ * When the input includes additive time values like 2+8 or 2.+32
+ * on groups, we need to create a group for each extra time value.
+ * For notes, the groups are all tied together to make them effectively
+ * a single group. If there are any subtractions in the list of time values,
+ * we have no way to determine what time values the user really wants,
+ * so we keep using as big as possible (including dots) until we get enough.
+ * Should be called with the group currently last in the GRPSYL list.
+ * Returns the (possibly new) last group.
+ */
+
+struct GRPSYL *
+expandgrp(grpsyl_p, timelist_p)
+
+struct GRPSYL *grpsyl_p; /* the first group; pattern to clone */
+struct TIMELIST *timelist_p; /* the list of additional time values */
+
+{
+ struct GRPSYL *gs_p; /* group being processed */
+ struct TIMELIST *tl_p; /* index through list to check for subtracts */
+ int had_neg; /* YES if there was at least one subtraction */
+ RATIONAL totaltime; /* all times added together */
+ int n; /* index through notelist */
+
+
+ if (timelist_p == 0) {
+ /* nothing to expand */
+ return(grpsyl_p);
+ }
+
+ /* disallow on grace */
+ if (grpsyl_p->grpvalue == GV_ZERO) {
+ yyerror("can't use additive time values on grace notes");
+ return(grpsyl_p);
+ }
+ /* disallow if alt on group */
+ if (grpsyl_p->slash_alt < 0) {
+ yyerror("can't use additive time values and alt on same chord");
+ return(grpsyl_p);
+ }
+
+ /* If there were any subtraction, need to do that differently
+ * than if all are additions. Check if any subtractions, and
+ * add up total time in case we need it. */
+ for (had_neg = NO, totaltime = grpsyl_p->fulltime, tl_p = timelist_p;
+ tl_p != 0; tl_p = tl_p->next) {
+ if (MI(tl_p->fulltime)) {
+ had_neg = YES;
+ }
+ totaltime = radd(totaltime, tl_p->fulltime);
+ }
+ if (had_neg == YES) {
+ /* It's impossible to know what time values the user
+ * really wants us to use, so we keep using the largest
+ * possible values until we get enough, using as many
+ * dots as possible along the way.
+ */
+ RATIONAL try; /* The time value we're currently attempting
+ * to use; will be used if remaining time
+ * is at least this long, else take half
+ * and try again. */
+ int needgrp; /* YES if need to alloc a new group.
+ * (Have one group to start with,
+ * so first time through loop don't need
+ * to allocate.) */
+
+ /* We start with double whole, and keep using smaller times
+ * from there until we get enough, using dots if possible.
+ * I suppose for rests we really *should* start with quad
+ * whole rather than double whole, but since we don't know
+ * what the user really wants anyway, and the cases where
+ * this would make a difference are so rare, and since the
+ * user can always specify exactly what they do want,
+ * don't bother. (They'll just get two double whole rests.) */
+ gs_p = grpsyl_p;
+ for (needgrp = NO, try = Two; PL(totaltime); ) {
+ if (GE(totaltime, try)) {
+ /* We can use this trial time value */
+ if (needgrp == YES) {
+ gs_p->next = clone_gs_list(gs_p, YES);
+ gs_p->next->prev = gs_p;
+ gs_p = gs_p->next;
+ /* If the original group started a beam,
+ * added groups must be inside */
+ if (gs_p->beamloc == STARTITEM) {
+ gs_p->beamloc = INITEM;
+ }
+ }
+ gs_p->fulltime = try;
+ gs_p->dots = 0;
+ gs_p->basictime = reconstruct_basictime(gs_p->fulltime);
+ totaltime = rsub(totaltime, try);
+ if (GE(totaltime, try)) {
+ /* Total time is so long we can use
+ * another one of this time value. */
+ needgrp = YES;
+ continue;
+ }
+ }
+ else {
+ /* Trial time is too long. Try half as much. */
+ try = rdiv(try, Two);
+ continue;
+ }
+
+ /* If still some time left, see if we can add one
+ * or more dots to use up more time. */
+ for (try = rdiv(try, Two); GE(totaltime, try);
+ try = rdiv(try, Two)) {
+ (gs_p->dots)++;
+ gs_p->fulltime = radd(gs_p->fulltime,
+ try);
+ totaltime = rsub(totaltime, try);
+ }
+ needgrp = YES;
+ }
+ }
+
+ else { /* (No subtractions) */
+ /* We will add a group for each added time value */
+ for (gs_p = grpsyl_p; timelist_p != 0;
+ timelist_p = timelist_p->next) {
+ /* Make a copy the GRPSYL. This function is to be called
+ * with the group currently at the end of a list,
+ * so the "list" being cloned is only a single group,
+ * but might as well use the existing function... */
+ gs_p->next = clone_gs_list(gs_p, YES);
+ gs_p->next->prev = gs_p;
+ gs_p = gs_p->next;
+ /* Now fix up the time values in the cloned group */
+ gs_p->fulltime = timelist_p->fulltime;
+ gs_p->basictime = reconstruct_basictime(gs_p->fulltime);
+ gs_p->dots = recalc_dots(gs_p->fulltime,
+ gs_p->basictime);
+ /* If the original group started a beam,
+ * added groups must be inside */
+ if (gs_p->beamloc == STARTITEM) {
+ gs_p->beamloc = INITEM;
+ }
+ }
+ }
+
+ /* We need to tie the note groups together. Rests are not yet in
+ * final form, so have to look for PP_REST. */
+ if (grpsyl_p->grpcont == GC_NOTES && (grpsyl_p->nnotes != 1
+ || grpsyl_p->notelist[0].letter != PP_REST)) {
+ for (gs_p = grpsyl_p; gs_p->next != 0; gs_p = gs_p->next) {
+ gs_p->tie = YES;
+ for (n = 0; n < gs_p->nnotes; n++) {
+ gs_p->notelist[n].tie = YES;
+ }
+ }
+ /* tied-to notes accidentals must be implied, not explicit */
+ for (n = 0; n < grpsyl_p->nnotes; n++) {
+ if (grpsyl_p->notelist[n].accidental != '\0') {
+ struct GRPSYL *ngs_p;
+ for (ngs_p = grpsyl_p->next; ngs_p != 0;
+ ngs_p = ngs_p->next) {
+ ngs_p->notelist[n].accidental = '\0';
+ }
+ }
+ }
+ }
+ return(gs_p);
+}
+\f
+
+/*
+ * Given a RATIONAL basictime and number of dots,
+ * return the corresponding fulltime. That is calculated by
+ * (2 * basictime) - (basictime x 1/2 to the (dots) power)
+ */
+
+RATIONAL
+calcfulltime(basictime, dots)
+
+RATIONAL basictime;
+int dots;
+
+{
+ return( rsub (rmul(Two, basictime), rmul(basictime, rrai(One_half, dots))) );
+}
~mdw / mup / blobdiff