add separator for long source lines

transpiler/gofmt.go

@@ -0,0 +1,79 @@
+package transpiler
+
+import (
+	"strings"
+)
+
+// Examples:
+// from:
+// var di [][][]byte = [][][]byte{[][]byte{[]byte("cq\x00"), []byte(";\x00")}, [][]byte{[]byte("pl\x00"), []byte("+\x00")}, [][]byte{[]byte("hy\x00"), []byte("-\x00")}, [][]byte{[]byte("sl\x00"), []byte("/\x00")}}
+// to:
+// var di [][][]byte = [][][]byte{
+//	[][]byte{[]byte("cq\x00"), []byte(";\x00")},
+//	[][]byte{[]byte("pl\x00"), []byte("+\x00")},
+//	[][]byte{[]byte("hy\x00"), []byte("-\x00")},
+//	[][]byte{[]byte("sl\x00"), []byte("/\x00")},
+// }
+//
+// from:
+// noarch.Printf([]byte("%d not ok - %s:%d: \x00"), current_test, []byte("/home/konstantin/go/src/github.com/Konstantin8105/c4go/tests/init.c\x00"), 13)
+// to:
+// noarch.Printf(
+//		[]byte("%d not ok - %s:%d: \x00"),
+//		current_test,
+//		[]byte("/home/konstantin/go/src/github.com/Konstantin8105/c4go/tests/init.c\x00"),
+//		13,
+// )
+
+const maxLineSymbol int = 100
+
+func addBreaklines(src string) string {
+	// separate long lines by comma
+	lines := strings.Split(src, "\n")
+	for i := range lines {
+		line := lines[i]
+		if len(line) > maxLineSymbol {
+			line = formatting(line)
+		}
+	}
+
+	return strings.Join(lines, "\n")
+}
+
+func formatting(line string) string {
+	// parens
+	// * ()
+	// * []
+	// * {}
+	// * ""
+	// separator :
+	// * ,
+
+	// check last byte
+	if line[len(line)-1] != '}' && line[len(line)-1] != ')' {
+		return line
+	}
+	if !strings.Contains(line, "=") {
+		return line
+	}
+
+	// initialization levels
+	levels := make([]int, len(line))
+	for i := 0; i < len(line); i++ {
+		levels[i] = -1
+	}
+
+	// add levels for parens - "
+	for i, isInside := 0, false; i < len(line); i++ {
+		if isInside {
+			levels[i] = 0
+		}
+		if line[i] == '"' {
+			isInside = !isInside
+		}
+	}
+
+	_ = levels
+
+	return line
+}

transpiler/transpiler.go

@@ -163,6 +163,8 @@ func TranspileAST(fileName, packageName string, withOutsideStructs bool,
 		source += getVaListStruct()
 	}
 
+	source = addBreaklines(source)
+
 	return
 }