Merge branch 'develop' into feature/monoMode

Magical8bitPlug2.jucer

@@ -10,6 +10,10 @@
               pluginDesc="8bit sound generator 2nd ver. by YMCK" displaySplashScreen="1"
               jucerFormatVersion="1" version="1.0.1">
   <MAINGROUP id="tlJ5Jv" name="Magical8bitPlug2">
+    <GROUP id="{90CFFF6B-201B-9373-6BE8-DDF2F136949F}" name="Tests">
+      <FILE id="WZca8g" name="EnvelopeParserTest.h" compile="0" resource="0"
+            file="Source/EnvelopeParserTest.h"/>
+    </GROUP>
     <GROUP id="{05934500-901F-8317-27DC-7E17FC00833D}" name="View">
       <GROUP id="{68A7410F-88F9-C9D8-8A37-6A70F269BBCC}" name="BaseComponents">
         <FILE id="lBYKKS" name="CheckBoxComponent.cpp" compile="1" resource="0"

Source/CustomEnvelopeComponent.cpp

@@ -153,6 +153,10 @@ void CustomEnvelopeComponent::textEditorTextChanged (TextEditor& editor)
 
     ParseError err = kParseErrorNone;
     processor.settingRefs.setSequenceWithString (paramType, txt, &err);
+    
+    ColorScheme cs = ColorScheme (processor.settingRefs.colorSchemeType());
+    Colour c = (err < kParseErrorLevelFatal) ? cs.main : cs.warning;
+    label->setColour (juce::Label::textColourId, c);
 
     if (err == kParseErrorValueOutOfRange)
     {

Source/EnvelopeParserTest.h

@@ -0,0 +1,354 @@
+/*
+  ==============================================================================
+
+    EnvelopeParserTest.h
+    Created: 13 Aug 2021 6:14:32pm
+    Author:  除村武志
+
+  ==============================================================================
+*/
+
+#pragma once
+#include "../JuceLibraryCode/JuceHeader.h"
+#include "FrameSequence.h"
+#include "FrameSequenceParser.h"
+#include "FrameSequenceParseErrors.h"
+
+class EnvelopeParserTest : public UnitTest {
+
+public:
+    EnvelopeParserTest() : UnitTest("Custom Envelope Parser Test") {}
+    
+    void runTest() override
+    {
+        FrameSequenceParser parser;
+        
+        //-------------------------------------------------------
+        //
+        // Section index
+        //
+        //-------------------------------------------------------
+        String str_beforeRepeat;
+        String str_insideRepeat;
+        String str_release;
+        
+        beginTest ("No repeat");
+        String input1 = "aaa"; // At this phase it doesn't matter if it contains numbers or not
+        auto result1 = parser.findSegment(input1);
+        expect(result1.repeatStartIndex == SegmentIndexes::NONE);
+        expect(result1.repeatEndIndex == SegmentIndexes::NONE);
+        expect(result1.releaseBlockIndex == SegmentIndexes::NONE);
+        
+        parser.splitSegment(input1, result1, str_beforeRepeat, str_insideRepeat, str_release);
+        expect(str_beforeRepeat == "aaa");
+        expect(str_insideRepeat == "");
+        expect(str_release == "");
+
+        beginTest ("With repeat, no release");
+        String input2 = "aa[bbb]";
+        auto result2 = parser.findSegment(input2);
+        expect(result2.repeatStartIndex == 3);
+        expect(result2.repeatEndIndex == 6);
+        expect(result2.releaseBlockIndex == SegmentIndexes::NONE);
+        
+        str_beforeRepeat = "";
+        str_insideRepeat = "";
+        str_release = "";
+        parser.splitSegment(input2, result2, str_beforeRepeat, str_insideRepeat, str_release);
+        expect(str_beforeRepeat == "aa");
+        expect(str_insideRepeat == "bbb");
+        expect(str_release == "");
+
+        beginTest ("Repeat segment starts from the top");
+        String input3 = "[aaa]";
+        auto result3 = parser.findSegment(input3);
+        expect(result3.repeatStartIndex == 1);
+        expect(result3.repeatEndIndex == 4);
+        expect(result3.releaseBlockIndex == SegmentIndexes::NONE);
+
+        str_beforeRepeat = "";
+        str_insideRepeat = "";
+        str_release = "";
+        parser.splitSegment(input3, result3, str_beforeRepeat, str_insideRepeat, str_release);
+        expect(str_beforeRepeat == "");
+        expect(str_insideRepeat == "aaa");
+        expect(str_release == "");
+
+        beginTest ("No repeat, with release");
+        String input4 = "aaa|bbbb";
+        auto result4 = parser.findSegment(input4);
+        expect(result4.repeatStartIndex == SegmentIndexes::NONE);
+        expect(result4.repeatEndIndex == 3); // It doesn't repeat, but it has to keep the last index of pre-release segment
+        expect(result4.releaseBlockIndex == 4);
+        
+        str_beforeRepeat = "";
+        str_insideRepeat = "";
+        str_release = "";
+        parser.splitSegment(input4, result4, str_beforeRepeat, str_insideRepeat, str_release);
+        expect(str_beforeRepeat == "aaa");
+        expect(str_insideRepeat == "");
+        expect(str_release == "bbbb");
+
+        beginTest ("Release segment without pre-release segment");
+        String input5 = "|bbbb";
+        auto result5 = parser.findSegment(input5);
+        expect(result5.repeatStartIndex == SegmentIndexes::NONE);
+        expect(result5.repeatEndIndex == 0); // This results in an immediate transition to Release Phase
+        expect(result5.releaseBlockIndex == 1);
+
+        str_beforeRepeat = "";
+        str_insideRepeat = "";
+        str_release = "";
+        parser.splitSegment(input5, result5, str_beforeRepeat, str_insideRepeat, str_release);
+        expect(str_beforeRepeat == "");
+        expect(str_insideRepeat == "");
+        expect(str_release == "bbbb");
+
+        beginTest ("Repeat and release (no pre-repeat)");
+        String input6 = "[aaa]|bbbb";
+        auto result6 = parser.findSegment(input6);
+        expect(result6.repeatStartIndex == 1);
+        expect(result6.repeatEndIndex == 4);
+        expect(result6.releaseBlockIndex == 6);
+
+        str_beforeRepeat = "";
+        str_insideRepeat = "";
+        str_release = "";
+        parser.splitSegment(input6, result6, str_beforeRepeat, str_insideRepeat, str_release);
+        expect(str_beforeRepeat == "");
+        expect(str_insideRepeat == "aaa");
+        expect(str_release == "bbbb");
+
+        beginTest ("Repeat and release (with pre-repeat)");
+        String input7 = "aaa[bbb]|cccc";
+        auto result7 = parser.findSegment(input7);
+        expect(result7.repeatStartIndex == 4);
+        expect(result7.repeatEndIndex == 7);
+        expect(result7.releaseBlockIndex == 9);
+
+        str_beforeRepeat = "";
+        str_insideRepeat = "";
+        str_release = "";
+        parser.splitSegment(input7, result7, str_beforeRepeat, str_insideRepeat, str_release);
+        expect(str_beforeRepeat == "aaa");
+        expect(str_insideRepeat == "bbb");
+        expect(str_release == "cccc");
+
+        beginTest ("Empty repeat section");
+        String input8 = "aaa[]|cccc";
+        auto result8 = parser.findSegment(input8);
+        expect(result8.repeatStartIndex == 4);
+        expect(result8.repeatEndIndex == 4);
+        expect(result8.releaseBlockIndex == 6);
+
+        str_beforeRepeat = "";
+        str_insideRepeat = "";
+        str_release = "";
+        parser.splitSegment(input8, result8, str_beforeRepeat, str_insideRepeat, str_release);
+        expect(str_beforeRepeat == "aaa");
+        expect(str_insideRepeat == "");
+        expect(str_release == "cccc");
+
+        beginTest ("Empty release section");
+        String input9 = "aaa[bbb]|";
+        auto result9 = parser.findSegment(input9);
+        expect(result9.repeatStartIndex == 4);
+        expect(result9.repeatEndIndex == 7);
+        expect(result9.releaseBlockIndex == 9);
+
+        str_beforeRepeat = "";
+        str_insideRepeat = "";
+        str_release = "";
+        parser.splitSegment(input9, result9, str_beforeRepeat, str_insideRepeat, str_release);
+        expect(str_beforeRepeat == "aaa");
+        expect(str_insideRepeat == "bbb");
+        expect(str_release == "");
+
+        beginTest ("[Error] Multiple open bracket");
+        String input10 = "aaa[[bbb]";
+        auto result10 = parser.findSegment(input10);
+        expect(result10.error = kParseErrorDuplicatedOpenBracket);
+
+        beginTest ("[Error] Multiple close bracket");
+        String input11 = "aaa[bbb]]";
+        auto result11 = parser.findSegment(input11);
+        expect(result11.error = kParseErrorDuplicatedCloseBracket);
+
+        beginTest ("[Error] Unmatching close bracket");
+        String input12 = "aaabbb]";
+        auto result12 = parser.findSegment(input12);
+        expect(result12.error = kParseErrorUnmatchingCloseBracket);
+
+        beginTest ("[Error] Repeat in release segment");
+        String input13 = "aaa|[bbb]";
+        auto result13 = parser.findSegment(input13);
+        expect(result13.error = kParseErrorRepeatingInReleaseBlock);
+                
+        //-------------------------------------------------------
+        //
+        // Slope
+        //
+        //-------------------------------------------------------
+        ParseError error = kParseErrorNone;
+        
+        beginTest ("Down slope");
+        String input14 = "3to0in4";
+        std::vector<int> result14 = parser.parseSlope(input14, 0, 15, &error);
+        expect(result14.size() == 4);
+        expect(result14[0] == 3);
+        expect(result14[1] == 2);
+        expect(result14[2] == 1);
+        expect(result14[3] == 0); // Should include the last value
+
+        beginTest ("Slow decrement");
+        String input15 = "2to0in8";
+        std::vector<int> result15 = parser.parseSlope(input15, 0, 15, &error);
+        expect(result15.size() == 8);
+        expect(result15[0] == 2);
+        expect(result15[1] == 2);
+        expect(result15[2] == 1);
+        expect(result15[3] == 1);
+        expect(result15[4] == 1);
+        expect(result15[5] == 1);
+        expect(result15[6] == 0);
+        expect(result15[7] == 0);
+
+        beginTest ("Fast decrement");
+        String input16 = "15to0in5";
+        std::vector<int> result16 = parser.parseSlope(input16, 0, 15, &error);
+        expect(result16.size() == 5);
+        expect(result16[0] == 15);
+        expect(result16[1] == 11);
+        expect(result16[2] == 8);
+        expect(result16[3] == 4);
+        expect(result16[4] == 0);
+
+        beginTest ("Up slope");
+        String input17 = "0to3in4";
+        std::vector<int> result17 = parser.parseSlope(input17, 0, 15, &error);
+        expect(result17.size() == 4);
+        expect(result17[0] == 0);
+        expect(result17[1] == 1);
+        expect(result17[2] == 2);
+        expect(result17[3] == 3); // Should include the last value
+
+        beginTest ("[Error] Missing 'in'");
+        String input18 = "0to3";
+        std::vector<int> result18 = parser.parseSlope(input18, 0, 15, &error);
+        expect(error == kParseErrorMissingSlopeLengthDelimiter);
+
+        beginTest ("[Error] Missing initial value");
+        String input19 = "to5in5";
+        std::vector<int> result19 = parser.parseSlope(input19, 0, 15, &error);
+        expect(error == kParseErrorMissingSlopeInitialValue);
+
+        beginTest ("[Error] Missing final value");
+        String input20 = "4toin5";
+        std::vector<int> result20 = parser.parseSlope(input20, 0, 15, &error);
+        expect(error == kParseErrorMissingSlopeFinalValue);
+
+        beginTest ("[Error] Missing frame count");
+        String input21 = "0to3in";
+        std::vector<int> result21 = parser.parseSlope(input21, 0, 15, &error);
+        expect(error == kParseErrorMissingSlopeFrameCount);
+
+        //-------------------------------------------------------
+        //
+        // Hold
+        //
+        //-------------------------------------------------------
+        beginTest ("Hold");
+        String input22 = "15x3";
+        std::vector<int> result22 = parser.parseHold(input22, 0, 15, &error);
+        expect(result22.size() == 3);
+        expect(result22[0] == 15);
+        expect(result22[1] == 15);
+        expect(result22[2] == 15);
+
+        beginTest ("[Error] Missing value");
+        String input23 = "x3";
+        std::vector<int> result23 = parser.parseHold(input23, 0, 15, &error);
+        expect(error == kParseErrorMissingHoldValue);
+
+        beginTest ("[Error] Missing value");
+        String input24 = "3x";
+        std::vector<int> result24 = parser.parseHold(input24, 0, 15, &error);
+        expect(error == kParseErrorMissingHoldFrameCount);
+
+        //-------------------------------------------------------
+        //
+        // Total
+        //
+        //-------------------------------------------------------
+        beginTest ("Overall test");
+        error = kParseErrorNone;
+        String input25 = "1, 2x2, 3to4in2 [5, 6]|7, 8";
+        FrameSequence result25 = parser.parse(input25, 0, 15, &error);
+        expect(result25.valueAt(0) == 1);
+        expect(result25.valueAt(1) == 2);
+        expect(result25.valueAt(2) == 2);
+        expect(result25.valueAt(3) == 3);
+        expect(result25.valueAt(4) == 4);
+        expect(result25.valueAt(5) == 5);
+        expect(result25.valueAt(6) == 6);
+        expect(result25.valueAt(7) == 7);
+        expect(result25.valueAt(8) == 8);
+        expect(result25.loopStartIndex = 5);
+        expect(result25.releaseSequenceStartIndex = 7);
+        
+        beginTest ("Value error");
+        error = kParseErrorNone;
+        String input26 = "1, 2, 3";
+        FrameSequence result26 = parser.parse(input26, 0, 2, &error);
+        expect(error = kParseErrorValueOutOfRange);
+
+        beginTest ("Value error - under");
+        error = kParseErrorNone;
+        String input27 = "1, 2, 3";
+        FrameSequence result27 = parser.parse(input27, 2, 3, &error);
+        expect(error = kParseErrorValueOutOfRange);
+
+        beginTest ("Value error2");
+        error = kParseErrorNone;
+        String input28 = "1, 2, 3x2";
+        FrameSequence result28 = parser.parse(input28, 0, 2, &error);
+        expect(error = kParseErrorValueOutOfRange);
+
+        beginTest ("Value error3");
+        error = kParseErrorNone;
+        String input29 = "1, 2, 0to3in2";
+        FrameSequence result29 = parser.parse(input29, 0, 2, &error);
+        expect(error = kParseErrorValueOutOfRange);
+
+        beginTest ("Empty segment warning(pre-repeat)");
+        error = kParseErrorNone;
+        String input30 = "[1]|2";
+        FrameSequence result30 = parser.parse(input30, 0, 2, &error);
+        expect(result30.valueAt(0) == 1);
+        expect(result30.valueAt(1) == 2);
+        expect(result30.loopStartIndex == 0);
+        expect(result30.releaseSequenceStartIndex == 1);
+        expect(error = kParseWarningPreRepeatSegmentEmpty);
+
+        beginTest ("Empty segment warning(in-repeat)");
+        error = kParseErrorNone;
+        String input31 = "1[]|2";
+        FrameSequence result31 = parser.parse(input31, 0, 2, &error);
+        expect(result31.valueAt(0) == 1);
+        expect(result31.valueAt(1) == 2);
+        expect(result31.loopStartIndex == 1);
+        expect(result31.releaseSequenceStartIndex == 1);
+        expect(error = kParseWarningRepeatSegmentEmpty);
+
+        beginTest ("Empty segment warning(after release)");
+        error = kParseErrorNone;
+        String input32 = "1[2]|";
+        FrameSequence result32 = parser.parse(input32, 0, 2, &error);
+        expect(result32.valueAt(0) == 1);
+        expect(result32.valueAt(1) == 2);
+        expect(result32.loopStartIndex == 1);
+        expect(result32.releaseSequenceStartIndex == 2);
+        expect(error = kParseWarningReleaseSegmentEmpty);
+
+    }
+};

Source/FrameSequenceParseErrors.cpp

@@ -14,6 +14,18 @@ String getParseErrorString (ParseError err, int minValue, int maxValue)
 {
     switch (err)
     {
+        case kParseWarningPreRepeatSegmentEmpty:
+            return TRANS ("Main body of the sequence is empty");
+            break;
+
+        case kParseWarningRepeatSegmentEmpty:
+            return TRANS ("Repeat section is empty");
+            break;
+
+        case kParseWarningReleaseSegmentEmpty:
+            return TRANS ("Release section is empty");
+            break;
+
         case kParseErrorDuplicatedReleaseDelimiter:
             return TRANS ("You cannot use \"|\" more than once");
             break;
@@ -58,6 +70,10 @@ String getParseErrorString (ParseError err, int minValue, int maxValue)
             return TRANS ("Missing destination value before \"in\"");
             break;
 
+        case kParseErrorMissingSlopeFrameCount:
+            return TRANS ("Frame count should be specified after \"in\"");
+            break;
+
         case kParseErrorNotANumber:
             return TRANS ("Number parse failed.");
             break;
@@ -70,11 +86,11 @@ String getParseErrorString (ParseError err, int minValue, int maxValue)
             return TRANS ("Frame count should be more than 2");
             break;
 
-        case kParseErrorMissingValueForRepeatDelimiter:
+        case kParseErrorMissingHoldValue:
             return TRANS ("Operator x should be followed by a number.");
             break;
 
-        case kParseErrorMissingFrameCountForRepeatDelimiter:
+        case kParseErrorMissingHoldFrameCount:
             return TRANS ("A number should be specified after operator x.");
             break;
 

Source/FrameSequenceParseErrors.h

@@ -15,6 +15,9 @@ enum ParseError
 {
     kParseErrorNone = 0,
     kParseErrorLevelWarning,
+    kParseWarningPreRepeatSegmentEmpty,
+    kParseWarningRepeatSegmentEmpty,
+    kParseWarningReleaseSegmentEmpty,
     kParseErrorLevelFatal,
     kParseErrorDuplicatedReleaseDelimiter,
     kParseErrorDuplicatedOpenBracket,
@@ -27,11 +30,12 @@ enum ParseError
     kParseErrorMissingSlopeLengthDelimiter,
     kParseErrorMissingSlopeInitialValue,
     kParseErrorMissingSlopeFinalValue,
+    kParseErrorMissingSlopeFrameCount,
     kParseErrorNotANumber,
     kParseErrorValueOutOfRange,
     kParseErrorFrameLengthTooShort,
-    kParseErrorMissingValueForRepeatDelimiter,
-    kParseErrorMissingFrameCountForRepeatDelimiter,
+    kParseErrorMissingHoldValue,
+    kParseErrorMissingHoldFrameCount,
 };
 
 String getParseErrorString (ParseError err, int minValue = 0, int maxValue = 0);

Source/FrameSequenceParser.cpp

@@ -10,11 +10,7 @@
 
 #include "FrameSequenceParser.h"
 
-//
-// Fileprivate
-//
-
-std::vector<int> parseSlope (const String& input,
+std::vector<int> FrameSequenceParser::parseSlope (const String& input,
                              int minValue,
                              int maxValue,
                              ParseError* error)
@@ -40,18 +36,23 @@ std::vector<int> parseSlope (const String& input,
     // find index of "in"
     int inIndex = input.indexOf ("in");
 
-    if (inIndex > input.length() - 3)
-    {
-        *error = kParseErrorMissingSlopeFinalValue;
-        return retval;
-    }
-
     if (inIndex < 0)
     {
         *error = kParseErrorMissingSlopeLengthDelimiter;
         return retval;
     }
 
+    if (inIndex > input.length() - 3)
+    {
+        *error = kParseErrorMissingSlopeFrameCount;
+        return retval;
+    }
+    if (inIndex - toIndex < 3)
+    {
+        *error = kParseErrorMissingSlopeFinalValue;
+        return retval;
+    }
+
     // get 3 substrings separated by "to" and "in" and put them into `from`, `to`, `cntStr`
     String fromStr = input.substring (0, toIndex);
     String toStr = input.substring (toIndex + 2, inIndex);
@@ -115,7 +116,7 @@ std::vector<int> parseSlope (const String& input,
     return retval;
 }
 
-std::vector<int> parseRepeat (const String& input,
+std::vector<int> FrameSequenceParser::parseHold (const String& input,
                               int minValue,
                               int maxValue,
                               ParseError* error)
@@ -126,13 +127,13 @@ std::vector<int> parseRepeat (const String& input,
 
     if (xIndex < 1)
     {
-        *error = kParseErrorMissingValueForRepeatDelimiter;
+        *error = kParseErrorMissingHoldValue;
         return retval;
     }
 
-    if (xIndex > input.length() - 1)
+    if (xIndex >= input.length() - 1)
     {
-        *error = kParseErrorMissingFrameCountForRepeatDelimiter;
+        *error = kParseErrorMissingHoldFrameCount;
         return retval;
     }
 
@@ -172,7 +173,7 @@ std::vector<int> parseRepeat (const String& input,
     return retval;
 }
 
-std::vector<int> parseSegment (const String& input,
+std::vector<int> FrameSequenceParser::parseSegment (const String& input,
                                int minValue,
                                int maxValue,
                                ParseError* error)
@@ -194,7 +195,7 @@ std::vector<int> parseSegment (const String& input,
         else if (aToken.contains ("x"))
         {
             // parse as repeat-fixed-value
-            parsed = parseRepeat (aToken, minValue, maxValue, error);
+            parsed = parseHold (aToken, minValue, maxValue, error);
         }
         else
         {
@@ -228,6 +229,161 @@ std::vector<int> parseSegment (const String& input,
     return retval;
 }
 
+SegmentIndexes FrameSequenceParser::findSegment(const String& input) {
+    int releaseBlockIndex = -1;
+    int repeatStartIndex = -1;
+    int repeatEndIndex = -1;
+    int openBracketCount = 0;
+    int closeBracketCount = 0;
+
+    SegmentIndexes retval = SegmentIndexes();
+
+    // loop by character
+    for (int i = 0; i < input.length(); i++)
+    {
+        if (input[i] == '|')  // found "|":
+        {
+            if (releaseBlockIndex >= 0)
+            {
+                //   if releaseBlockIndex is already determined: Duplication Error
+                retval.error = kParseErrorDuplicatedReleaseDelimiter;
+                return retval;
+            }
+
+            //            if(repeatStartIndex >= 0) {
+            //                //   if appeard before "[" or  "]": Repetition After Release Error
+            //                throw new FrameSequenceParseException(TRANS("You cannot repeat in release phase"), true);
+            //            }
+            //   set releaseBlockIndex
+            releaseBlockIndex = i + 1;
+
+            if (repeatEndIndex < 0)
+            {
+                // if "]" is omitted: Also set repeatEndIndex
+                repeatEndIndex = i;
+            }
+        }
+
+        if (input[i] == '[')  /// found "[":
+        {
+            openBracketCount++;
+
+            if (openBracketCount > 1)
+            {
+                //   Duplication Error
+                retval.error = kParseErrorDuplicatedOpenBracket;
+                return retval;
+            }
+
+            if (releaseBlockIndex >= 0)
+            {
+                //   if repeat end is already defined: Repetition After Release Error
+                retval.error = kParseErrorRepeatingInReleaseBlock;
+                return retval;
+            }
+
+            if (repeatEndIndex >= 0)
+            {
+                //   if repeat end is already defined: Repetition After Release Error
+                retval.error = kParseErrorDuplicatedOpenBracket;
+                return retval;
+            }
+
+            //   set repeatStartIndex
+            repeatStartIndex = i + 1;
+        }
+
+        if (input[i] == ']')  // found "]":
+        {
+            closeBracketCount++;
+
+            if (closeBracketCount > 1)
+            {
+                //    Duplication Error
+                retval.error = kParseErrorDuplicatedCloseBracket;
+                return retval;
+            }
+
+            if (repeatStartIndex < 0)
+            {
+                //   if repeatStartIndex hasn't set: Syntax Error
+                retval.error = kParseErrorUnmatchingCloseBracket;
+                return retval;
+            }
+
+            if (releaseBlockIndex >= 0)
+            {
+                //   if repeat end is already defined: Repetition After Release Error
+                retval.error = kParseErrorRepeatingInReleaseBlock;
+                return retval;
+            }
+
+            repeatEndIndex = i;
+        }
+    }
+
+    //    if (releaseBlockIndex < 0) { // "|" didn't explicitly specified
+    //        releaseBlockIndex = trimmed.length();
+    //    }
+
+    if (openBracketCount != closeBracketCount)
+    {
+        retval.error = kParseErrorUnmatchingBracketNumber;
+        return retval;
+    }
+
+    if (releaseBlockIndex - repeatEndIndex > 1)
+    {
+        //        throw new FrameSequenceParseException(TRANS("Elements between repeat block and release block will be ignored"), false);
+        // FiXME: non-fatal exceptionをどう扱うか
+    }
+
+    retval.releaseBlockIndex = releaseBlockIndex;
+    retval.repeatStartIndex = repeatStartIndex;
+    retval.repeatEndIndex = repeatEndIndex;
+    return retval;
+}
+
+void FrameSequenceParser::splitSegment (const String& input,
+                                        SegmentIndexes indexes,
+                                        String& beforeRepeat,
+                                        String& insideRepeat,
+                                        String& afterRelease) {
+    int releaseBlockIndex = indexes.releaseBlockIndex;
+    int repeatStartIndex = indexes.repeatStartIndex;
+    int repeatEndIndex = indexes.repeatEndIndex;
+
+    // Just for convenience
+    bool hasRelease = (releaseBlockIndex >= 0);
+    bool shouldRepeat = (repeatStartIndex >= 0);
+
+    if (shouldRepeat)
+    {
+        if (hasRelease)
+        {
+            beforeRepeat = input.substring(0, repeatStartIndex - 1);
+            insideRepeat = input.substring (repeatStartIndex, repeatEndIndex);
+            afterRelease = input.substring(releaseBlockIndex, input.length());
+        }
+        else
+        {
+            beforeRepeat = input.substring(0, repeatStartIndex - 1);
+            insideRepeat = input.substring (repeatStartIndex, repeatEndIndex);
+        }
+    }
+    else
+    {
+        if (hasRelease) {
+            beforeRepeat = input.substring (0, releaseBlockIndex - 1);
+            afterRelease = input.substring (releaseBlockIndex, input.length());
+        }
+        else
+        {
+            beforeRepeat = input.substring (0, input.length());
+        }
+    }
+}
+
 FrameSequence FrameSequenceParser::parse (const String& input,
                                           int minValue,
                                           int maxValue,
@@ -248,116 +404,11 @@ FrameSequence FrameSequenceParser::parse (const String& input,
     //
     // Overall structure
     //
-
-    int releaseBlockIndex = -1;
-    int repeatStartIndex = -1;
-    int repeatEndIndex = -1;
-    int openBracketCount = 0;
-    int closeBracketCount = 0;
-
-    // loop by character
-    for (int i = 0; i < trimmed.length(); i++)
-    {
-        if (trimmed[i] == '|')  // found "|":
-        {
-            if (releaseBlockIndex >= 0)
-            {
-                //   if releaseBlockIndex is already determined: Duplication Error
-                *error = kParseErrorDuplicatedReleaseDelimiter;
-                return fs;
-            }
-
-            //            if(repeatStartIndex >= 0) {
-            //                //   if appeard before "[" or  "]": Repetition After Release Error
-            //                throw new FrameSequenceParseException(TRANS("You cannot repeat in release phase"), true);
-            //            }
-            //   set releaseBlockIndex
-            releaseBlockIndex = i + 1;
-
-            if (repeatEndIndex < 0)
-            {
-                // if "]" is omitted: Also set repeatEndIndex
-                repeatEndIndex = i;
-            }
-        }
-
-        if (trimmed[i] == '[')  /// found "[":
-        {
-            openBracketCount++;
-
-            if (openBracketCount > 1)
-            {
-                //   Duplication Error
-                *error = kParseErrorDuplicatedOpenBracket;
-                return fs;
-            }
-
-            if (releaseBlockIndex >= 0)
-            {
-                //   if repeat end is already defined: Repetition After Release Error
-                *error = kParseErrorRepeatingInReleaseBlock;
-                return fs;
-            }
-
-            if (repeatEndIndex >= 0)
-            {
-                //   if repeat end is already defined: Repetition After Release Error
-                *error = kParseErrorDuplicatedOpenBracket;
-                return fs;
-            }
-
-            //   set repeatStartIndex
-            repeatStartIndex = i + 1;
-        }
-
-        if (trimmed[i] == ']')  // found "]":
-        {
-            closeBracketCount++;
-
-            if (closeBracketCount > 1)
-            {
-                //    Duplication Error
-                *error = kParseErrorDuplicatedCloseBracket;
-                return fs;
-            }
-
-            if (repeatStartIndex < 0)
-            {
-                //   if repeatStartIndex hasn't set: Syntax Error
-                *error = kParseErrorUnmatchingCloseBracket;
-                return fs;
-            }
-
-            if (releaseBlockIndex >= 0)
-            {
-                //   if repeat end is already defined: Repetition After Release Error
-                *error = kParseErrorRepeatingInReleaseBlock;
-                return fs;
-            }
-
-            repeatEndIndex = i;
-        }
-    }
-
-    //    if (releaseBlockIndex < 0) { // "|" didn't explicitly specified
-    //        releaseBlockIndex = trimmed.length();
-    //    }
-
-    if (openBracketCount != closeBracketCount)
-    {
-        *error = kParseErrorUnmatchingBracketNumber;
-        return fs;
-    }
-
-    if (releaseBlockIndex - repeatEndIndex > 1)
-    {
-        //        throw new FrameSequenceParseException(TRANS("Elements between repeat block and release block will be ignored"), false);
-        // FiXME: non-fatal exceptionをどう扱うか
-    }
+    SegmentIndexes si = findSegment(trimmed);
 
     // Just for convenience
-    bool hasRelease = (releaseBlockIndex >= 0);
-    bool shouldRepeat = (repeatStartIndex >= 0);
+    bool hasRelease = (si.releaseBlockIndex >= 0);
+    bool shouldRepeat = (si.repeatStartIndex >= 0);
 
     //-----------------------------------
     //
@@ -369,32 +420,7 @@ FrameSequence FrameSequenceParser::parse (const String& input,
     String str_insideRepeat;
     String str_release;
 
-    if (shouldRepeat)
-    {
-        if (hasRelease)
-        {
-            str_beforeRepeat = trimmed.substring (0, repeatStartIndex - 1);
-        }
-
-        str_insideRepeat = trimmed.substring (repeatStartIndex, repeatEndIndex);
-    }
-    else
-    {
-        if (hasRelease)
-        {
-            str_beforeRepeat = trimmed.substring (0, releaseBlockIndex - 1);
-            str_release = trimmed.substring (releaseBlockIndex, trimmed.length());
-        }
-        else
-        {
-            str_beforeRepeat = trimmed.substring (0, trimmed.length());
-        }
-    }
-
-    std::cout << "before repeat : " + str_beforeRepeat + "\n";
-    std::cout << "inside repeat : " + str_insideRepeat + "\n";
-    std::cout << "after release : " + str_release + "\n";
-
+    splitSegment(trimmed, si, str_beforeRepeat, str_insideRepeat, str_release);
 
     //-----------------------------------
     //
@@ -412,6 +438,9 @@ FrameSequence FrameSequenceParser::parse (const String& input,
     {
         return fs;
     }
+    if (sequence.size() == 0) {
+        *error = kParseWarningPreRepeatSegmentEmpty;
+    }
 
     fs.sequence = sequence;
     fs.sequence.reserve (1000);
@@ -430,6 +459,10 @@ FrameSequence FrameSequenceParser::parse (const String& input,
         {
             return fs;
         }
+        if (repeatSeq.size() == 0) {
+            // Repeat section is defined but content is empty
+            *error = kParseWarningRepeatSegmentEmpty;
+        }
 
         //   Add the result to working frameSequence
         fs.sequence.insert (fs.sequence.end(), repeatSeq.begin(), repeatSeq.end());
@@ -451,6 +484,10 @@ FrameSequence FrameSequenceParser::parse (const String& input,
         {
             return fs;
         }
+        if (releaseSeq.size() == 0) {
+            // Release section is defined but content is empty
+            *error = kParseWarningRepeatSegmentEmpty;
+        }
 
         //   Add the result to working frameSequence
         fs.sequence.insert (fs.sequence.end(), releaseSeq.begin(), releaseSeq.end());

Source/FrameSequenceParser.h

@@ -13,7 +13,41 @@
 #include "FrameSequence.h"
 #include "FrameSequenceParseErrors.h"
 
+struct SegmentIndexes {
+    static const int NONE = -1;
+    
+    int releaseBlockIndex = NONE;
+    int repeatStartIndex = NONE;
+    int repeatEndIndex = NONE;
+    ParseError error;
+};
+
 struct FrameSequenceParser
 {
+    /*
+     Public
+     */
     FrameSequence parse (const String& input, int minValue, int maxValue, ParseError* error);
+    
+    /*
+     Semantically private (leave them open for unit testing)
+     */
+    std::vector<int> parseSlope (const String& input,
+                                 int minValue,
+                                 int maxValue,
+                                 ParseError* error);
+    std::vector<int> parseHold (const String& input,
+                                  int minValue,
+                                  int maxValue,
+                                  ParseError* error);
+    std::vector<int> parseSegment (const String& input,
+                                   int minValue,
+                                   int maxValue,
+                                   ParseError* error);
+    void splitSegment (const String& input,
+                       SegmentIndexes indexes,
+                       String& beforeRepeat,
+                       String& insideRepeat,
+                       String& afterRelease);
+    SegmentIndexes findSegment(const String& input);
 };

Source/PluginProcessor.cpp

@@ -14,6 +14,7 @@
 #include "TriangleVoice.h"
 #include "NoiseVoice.h"
 #include "FrameSequenceParseErrors.h"
+#include "EnvelopeParserTest.h"
 
 //==============================================================================
 Magical8bitPlug2AudioProcessor::Magical8bitPlug2AudioProcessor()
@@ -121,7 +122,7 @@ Magical8bitPlug2AudioProcessor::Magical8bitPlug2AudioProcessor()
         std::make_unique<AudioParameterBool> ("isPitchSequenceEnabled_raw", "Enabled", false),
         std::make_unique<AudioParameterBool> ("isDutySequenceEnabled_raw", "Enabled", false),
         std::make_unique<AudioParameterChoice> ("pitchSequenceMode_raw", "Mode", StringArray ({"Coarse", "Fine"}), 0)
-}
+    }
   )
 , settingRefs (&parameters)
 , synth(*this)
@@ -140,6 +141,12 @@ Magical8bitPlug2AudioProcessor::Magical8bitPlug2AudioProcessor()
 
     setupVoice();
     synth.addSound (new GenericSound());
+    
+#if JUCE_DEBUG
+    EnvelopeParserTest test;
+    UnitTestRunner runner;
+    runner.runAllTests();
+#endif
 }
 
 Magical8bitPlug2AudioProcessor::~Magical8bitPlug2AudioProcessor()