Add underscore formatting in numbers

src/main/java/ch/njol/skript/classes/data/JavaClasses.java

@@ -41,8 +41,8 @@
 public class JavaClasses {
 
 	public static final int VARIABLENAME_NUMBERACCURACY = 8;
-	public static final Pattern INTEGER_PATTERN = Pattern.compile("-?[0-9]+");
-	public static final Pattern NUMBER_PATTERN = Pattern.compile("-?[0-9]+(?>\\.[0-9]+)?%?");
+	public static final Pattern INTEGER_PATTERN = Pattern.compile("-?\\d+(_\\d+)*");
+	public static final Pattern NUMBER_PATTERN = Pattern.compile("-?\\d+(_\\d+)*(?>\\.\\d+(_\\d+)*)?%?");
 
 	static {
 		Classes.registerClass(new ClassInfo<>(Object.class, "object")
@@ -72,10 +72,12 @@ public Number parse(String s, ParseContext context) {
 							return null;
 						if (INTEGER_PATTERN.matcher(s).matches()) {
 							try {
-								return Long.valueOf(s);
+								return Long.valueOf(s.replace("_", ""));
 							} catch (NumberFormatException ignored) { }
 						}
 						try {
+							s = s.replace("_", "");
+
 							Double d = s.endsWith("%") ? Double.parseDouble(s.substring(0, s.length() - 1)) / 100 : Double.parseDouble(s);
 							if (d.isNaN() || d.isInfinite())
 								return null;
@@ -141,7 +143,7 @@ public Long parse(String s, ParseContext context) {
 						if (!INTEGER_PATTERN.matcher(s).matches())
 							return null;
 						try {
-							return Long.valueOf(s);
+							return Long.valueOf(s.replace("_", ""));
 						} catch (NumberFormatException e) {
 							return null;
 						}
@@ -198,7 +200,7 @@ public Integer parse(String s, ParseContext context) {
 						if (!INTEGER_PATTERN.matcher(s).matches())
 							return null;
 						try {
-							return Integer.valueOf(s);
+							return Integer.valueOf(s.replace("_", ""));
 						} catch (NumberFormatException e) {
 							return null;
 						}
@@ -257,6 +259,8 @@ public Double parse(String s, ParseContext context) {
 						if (!NUMBER_PATTERN.matcher(s).matches())
 							return null;
 						try {
+							s = s.replace("_", "");
+
 							Double d = s.endsWith("%") ? Double.parseDouble(s.substring(0, s.length() - 1)) / 100 : Double.parseDouble(s);
 							if (d.isNaN() || d.isInfinite())
 								return null;
@@ -317,6 +321,8 @@ public Float parse(String s, ParseContext context) {
 						if (!NUMBER_PATTERN.matcher(s).matches())
 							return null;
 						try {
+							s = s.replace("_", "");
+
 							Float f = s.endsWith("%") ? Float.parseFloat(s.substring(0, s.length() - 1)) / 100 : Float.parseFloat(s);
 							if (f.isNaN() || f.isInfinite()) {
 								return null;
@@ -443,7 +449,7 @@ public Short parse(String s, ParseContext context) {
 						if (!INTEGER_PATTERN.matcher(s).matches())
 							return null;
 						try {
-							return Short.valueOf(s);
+							return Short.valueOf(s.replace("_", ""));
 						} catch (NumberFormatException e) {
 							return null;
 						}
@@ -500,7 +506,7 @@ public Byte parse(String s, ParseContext context) {
 						if (!INTEGER_PATTERN.matcher(s).matches())
 							return null;
 						try {
-							return Byte.valueOf(s);
+							return Byte.valueOf(s.replace("_", ""));
 						} catch (NumberFormatException e) {
 							return null;
 						}

src/test/skript/tests/misc/underscores in numbers.sk

@@ -0,0 +1,44 @@
+test "underscores in numbers":
+	assert 1 is a number with "1 is not a number"
+	assert -1 is a number with "-1 is not a number"
+	assert 1.236 is a number with "1.236 is not a number"
+	assert -1.236 is a number with "1.236 is not a number"
+	assert 1234567890 is a number with "1234567890 is not a number"
+	assert -1234567890 is a number with "-1234567890 is not a number"
+
+	assert 1_23_456 is 123456 with "1_23_456 is not 123456"
+	assert -1_23_456 is -123456 with "-1_23_456 is not -123456"
+	assert 1_23_4 is 1234 with "1_23_4 is not 1234"
+	assert -1_23_4 is -1234 with "-1_23_4 is not -1234"
+
+	assert 1_2.3_456 is 12.3456 with "1_2.3_456 is not 12.3456"
+	assert -1_2.3_456 is -12.3456 with "-1_2.3_456 is not -12.3456"
+	assert 1_2.3_4 is 12.34 with "1_2.3_4 is not 12.34"
+	assert -1_2.3_4 is -12.34 with "-1_2.3_4 is not -12.34"
+
+	assert 1_23_456_65665_7354 is 123456656657354 with "1_23_456_65665_7354 is not 123456656657354"
+	assert -1_23_456_65665_7354 is -123456656657354 with "-1_23_456_65665_7354 is not -123456656657354"
+
+	assert 1_23_4% is 1234/100 with "1_23_4%% is not 1234/100"
+	assert -1_23_4% is -1234/100 with "-1_23_4%% is not -1234/100"
+	assert 1_2.3_4% is 12.34/100 with "1_2.3_4%% is not 12.34/100"
+	assert -1_2.3_4% is -12.34/100 with "-1_2.3_4%% is not -12.34/100"
+
+	assert ("1__00" parsed as number) is not a number with "1__00 is a number"
+	assert ("1.2__3_6" parsed as number) is not a number with "1.2__3_6 is a number"
+	assert ("1.2__3_6%%" parsed as number) is not a number with "1.2__3_6%% is a number"
+
+	assert ("_1" parsed as number) is not a number with "_1 is a number"
+	assert ("_1.2_3_6" parsed as number) is not a number with "_1.2_3_6 is a number"
+	assert ("___1" parsed as number) is not a number with "___1 is a number"
+	assert ("___1.2_3_6" parsed as number) is not a number with "___1.2_3_6 is a number"
+
+	assert ("1_" parsed as number) is not a number with "1_ is a number"
+	assert ("1.2_3_6_" parsed as number) is not a number with "1.2_3_6_ is a number"
+	assert ("1___" parsed as number) is not a number with "1___ is a number"
+	assert ("1.2_3_6___" parsed as number) is not a number with "1.2_3_6___ is a number"
+
+	assert ("_1_" parsed as number) is not a number with "_1_ is a number"
+	assert ("_1.2_3_6_" parsed as number) is not a number with "_1.2_3_6_ is a number"
+	assert ("___1___" parsed as number) is not a number with "___1___ is a number"
+	assert ("___1.2_3_6___" parsed as number) is not a number with "___1.2_3_6___ is a number"