Bugfix/%DEC bif with italian decimal separator

rpgJavaInterpreter-core/src/main/kotlin/com/smeup/rpgparser/parsing/facade/RpgParserFacade.kt

@@ -162,7 +162,7 @@ class RpgParserFacade {
         val code = inputStreamToString(inputStream)
         val lines = code.lines()
         val longLines = lines.map { it.padEnd(threshold) }
-        val paddedCode = longLines.joinToString(System.lineSeparator())
+        val paddedCode = longLines.joinToString("\n")
         return CharStreams.fromStream(paddedCode.byteInputStream(StandardCharsets.UTF_8))
     }
 

rpgJavaInterpreter-core/src/main/kotlin/com/smeup/rpgparser/utils/misc.kt

@@ -122,9 +122,9 @@ fun String?.asDouble(): Double {
 
 fun String.asBigDecimal(): BigDecimal? =
     try {
-        BigDecimal(this.trim())
+        BigDecimal(this.trim().replace(',', '.'))
     } catch (e: Exception) {
-        null
+        error("Unable to parse $this as BigDecimal")
     }
 
 fun Int.ceilDiv(divisor: Int): Int = this / divisor + if (this % divisor > 0) 1 else 0

rpgJavaInterpreter-core/src/test/kotlin/com/smeup/rpgparser/evaluation/InterpreterTest.kt

@@ -1063,6 +1063,11 @@ Test 6
         )
     }
 
+    @Test
+    fun executeBIFDEC01() {
+        assertEquals(listOf("1.30", "1.30"), outputOf("BIFDEC01"))
+    }
+
     @Test
     fun executeBIFEDITC() {
         // I don't know exactly what expected result should be
@@ -1306,7 +1311,7 @@ Test 6
     }
 
     @Test
-    fun EVALwithTypeError() {
+    fun evalWithTypeError() {
         val systemInterface = JavaSystemInterface()
 
         val source =

rpgJavaInterpreter-core/src/test/resources/BIFDEC01.rpgle

@@ -0,0 +1,25 @@
+     V* ==============================================================
+     D* Purpose of this program is to fix %DEC when the string
+     D* contains italian decimal separator (comma instead of dot)
+     V* ==============================================================
+
+     D DECIMAL         S              9  2
+     D STR             S             10A
+
+      * %DEC with dot decimal separator ************************************
+     C                   EVAL      STR='1.30'
+     C                   EVAL      DECIMAL=%DEC(STR:9:2)
+      * Expected:
+      *  DECIMAL = 1.30
+     C     DECIMAL       DSPLY
+      ***********************************************************************
+
+      * %DEC with italian decimal separator (comma) ************************
+     C                   EVAL      STR='1,30'
+     C                   EVAL      DECIMAL=%DEC(STR:9:2)
+      * Expected:
+      *  DECIMAL = 1.30
+     C     DECIMAL       DSPLY
+      ***********************************************************************
+
+     C                   SETON                                        LR