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@@ -10,11 +10,27 @@
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#include "cmXml.h"
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11
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#include "cmText.h"
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#include "cmXScore.h"
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+#include "cmTime.h"
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+#include "cmMidi.h"
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15
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cmXsH_t cmXsNullHandle = cmSTATIC_NULL_HANDLE;
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+enum
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+{
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+ kRestXsFl = 0x0001,
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21
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+ kGraceXsFl = 0x0002,
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+ kDotXsFl = 0x0004
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+};
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+
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+
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typedef struct cmXsNote_str
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{
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+ unsigned flags;
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+ unsigned pitch; // midi pitch
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+ unsigned duration; // duration in ticks
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+ unsigned rvalue; // 1/type = rythmic value (1/4=quarter note, 1/8=eighth note, ...)
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+ struct cmXsNote_str* link;
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+
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} cmXsNote_t;
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35
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typedef struct cmXsVoice_str
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@@ -128,11 +144,153 @@ cmXsRC_t _cmXScoreParsePartList( cmXScore_t* p )
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return rc;
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}
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146
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+cmXsRC_t _cmXScoreParsePitch( cmXScore_t* p, const cmXmlNode_t* nnp, unsigned* midiPitchRef )
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+{
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+ cmXsRC_t rc = kOkXsRC;
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+ unsigned octave = 0;
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+ double alter = 0;
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+ const cmChar_t* step = NULL;
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153
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+
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+ if((step = cmXmlNodeValue(nnp,"pitch","step",NULL)) == NULL )
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+ return _cmXScoreMissingNode(p,"step",NULL);
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+
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+ if((rc = cmXmlNodeUInt( nnp,&octave,"pitch","octave",NULL)) != kOkXmlRC )
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+ return _cmXScoreMissingNode(p,"octave",NULL);
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+
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+ cmXmlNodeDouble( nnp,&alter,"pitch","alter",NULL);
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+
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+ cmChar_t buf[3] = { *step, '0', '\0'};
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+ unsigned midi = cmSciPitchToMidi(buf);
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+
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+ midi += (12 * octave);
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+
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+ midi += alter;
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+
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+ *midiPitchRef = midi;
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+
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+ return rc;
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+}
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+
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+unsigned _cmXScoreParseNoteType( const cmXmlNode_t* nnp )
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+{
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+ typedef struct map_str
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+ {
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+ unsigned rvalue;
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+ const cmChar_t* label;
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+ } map_t;
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+
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+ map_t mapV[] =
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+ {
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+ { 1, "whole" },
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+ { 2, "half" },
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+ { 4, "quarter" },
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+ { 8, "eighth" },
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+ { 16,"16th"},
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+ { 32,"32nd"},
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+ { 64,"64th"},
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+ {128,"128th"},
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+ {0,""}
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+ };
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+
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+ if( cmXmlNodeHasChild(nnp,"type") )
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+ {
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+ const cmChar_t* str;
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+ if((str = cmXmlNodeValue(nnp,"type",NULL)) == NULL)
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+ {
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+ unsigned i;
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+ for(i=0; mapV[i].rvalue!=0; ++i)
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+ if( cmTextCmp(mapV[i].label,str) == 0 )
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+ return mapV[i].rvalue;
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+ }
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+
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+ }
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+
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+ return 0;
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+}
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+
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+cmXsVoice_t* _cmXScoreIdToVoice( cmXsMeas_t* meas, unsigned voiceId )
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+{
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+ cmXsVoice_t* v = meas->voiceL;
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+ for(; v!=NULL; v=v->link)
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+ if( v->id == voiceId )
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+ return v;
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+
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+ return NULL;
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+}
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+
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+cmXsRC_t _cmXScorePushNote( cmXScore_t* p, cmXsMeas_t* meas, unsigned voiceId, cmXsNote_t* note )
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+{
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+ cmXsVoice_t* v;
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+ if((v = _cmXScoreIdToVoice(meas,voiceId)) == NULL)
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+ {
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+ v = cmLhAllocZ(p->lhH,cmXsVoice_t,1);
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+ v->id = voiceId;
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+
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+ if( meas->voiceL == NULL )
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+ meas->voiceL = v;
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+ else
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+ {
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+ cmXsVoice_t* vp = meas->voiceL;
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+ while( vp->link!=NULL )
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+ vp = vp->link;
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+
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+ vp->link = v;
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+ }
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+ }
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+
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+ if( v->noteL == NULL )
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+ v->noteL = note;
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+ else
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+ {
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+ cmXsNote_t* n = v->noteL;
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+ while( n != NULL )
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+ n = n->link;
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+
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+ n->link = note;
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+ }
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+
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+ return kOkXsRC;
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+}
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+
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+cmXsRC_t _cmXScoreParseNote(cmXScore_t* p, cmXsMeas_t* meas, const cmXmlNode_t* nnp)
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+{
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+ cmXsRC_t rc = kOkXsRC;
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+
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+ cmXsNote_t* note = cmLhAllocZ(p->lhH,cmXsNote_t,1);
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+ unsigned voiceId;
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+
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+ // get the voice id for this node
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+ if( cmXmlNodeUInt(nnp,&voiceId,"voice",NULL) != kOkXmlRC )
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+ return _cmXScoreMissingNode(p,"voice",NULL);
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+
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+
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+ // if this note has a pitch
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+ if( cmXmlNodeHasChild(nnp,"pitch") )
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+ if((rc = _cmXScoreParsePitch(p,nnp,¬e->pitch)) != kOkXsRC )
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+ return rc;
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+
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+ // is 'rest'
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+ if( cmXmlNodeHasChild(nnp,"rest") )
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+ note->flags |= kRestXsFl;
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+
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+ // is 'grace'
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+ if( cmXmlNodeHasChild(nnp,"grace") )
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+ note->flags |= kGraceXsFl;
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+
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+ // is 'dot'
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+ if( cmXmlNodeHasChild(nnp,"dot") )
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+ note->flags |= kDotXsFl;
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+
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+ if((note->rvalue = _cmXScoreParseNoteType(nnp)) == 0 )
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+ return _cmXScoreMissingNode(nnp,"type",NULL);
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+
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+}
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132
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-cmXsRC_t _cmXScoreParseMeasure(cmXScore_t* p, cmXsPart_t* pp, const cmXmlNode_t* mnp )
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+cmXsRC_t _cmXScoreParseMeasure(cmXScore_t* p, cmXsPart_t* pp, const cmXmlNode_t* mnp)
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{
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291
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cmXsRC_t rc = kOkXsRC;
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292
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+ // allocate the 'measure' record
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cmXsMeas_t* meas = cmLhAllocZ(p->lhH,cmXsMeas_t,1);
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const cmXmlNode_t* np;
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@@ -157,6 +315,20 @@ cmXsRC_t _cmXScoreParseMeasure(cmXScore_t* p, cmXsPart_t* pp, const cmXmlNode_t*
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cmXmlNodeUInt(np,&meas->divisions,"divisions",NULL);
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cmXmlNodeUInt(np,&meas->beats,"time","beats",NULL);
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cmXmlNodeUInt(np,&meas->beat_type,"time","beat-type",NULL);
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+
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+ int tick = 0;
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+
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+ np = mnp->children;
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+ for(; np!=NULL; np=np->sibling)
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+ if( cmTextCmp(np->label,"note") )
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+ {
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+ rc = _cmXScoreParseNote(p,meas,mnp);
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+ }
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+ else
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+ if( cmTextCmp(np->label,"backup") )
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+ {
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+ }
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+
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return rc;
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}
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