copy qmlfmt over from cwtch.im/ui/cmd/qmlfmt

README.md

@@ -0,0 +1,3 @@
+# qmlfmt
+
+`qmlfmt` in place edits the qml files specified on the command line applying fixed 4 space indent rules to them. This simple tool is aimed at projects working with QML but not using QT Creator so not benefiting from it's auto formating.

qmlfmt.go

@@ -0,0 +1,91 @@
+package main
+
+import (
+	"bufio"
+	"log"
+	"os"
+	"strings"
+)
+
+const (
+	indent = "    "
+)
+
+func main() {
+	if len(os.Args) < 2 {
+		log.Fatal("Required argument(s): filename(s)")
+	}
+
+	for _, filename := range os.Args[1:] {
+		processFile(filename)
+	}
+
+}
+
+func processFile(filename string) {
+	file, err := os.Open(filename)
+	if err != nil {
+		log.Fatalf("Could not read file %v: %v\n", filename, err)
+	}
+
+	scanner := bufio.NewScanner(file)
+	var lines []string
+
+	for scanner.Scan() {
+		lines = append(lines, scanner.Text())
+	}
+
+	file.Close()
+
+	file, err = os.Create(filename)
+	defer file.Close()
+	if err != nil {
+		log.Fatalf("Could not write to file %v: %v\n", filename, err)
+	}
+
+	indentCount := 0
+	inMultiLineComment := false
+
+	for ln, line := range lines {
+
+		singleCommentPos := strings.Index(line, "//")
+		multiLineCommentStartPos := strings.Index(line, "/*")
+		multiLineCommentEndPos := strings.Index(line, "*/")
+
+		openPos := strings.Index(line, "{")
+		closePos := strings.Index(line, "}")
+
+		if !inMultiLineComment && closePos > -1 && (openPos == -1 || openPos > closePos) && (singleCommentPos == -1 || closePos < singleCommentPos) &&
+			(multiLineCommentStartPos == -1 || closePos < multiLineCommentStartPos) &&
+			(multiLineCommentEndPos == -1 || closePos > multiLineCommentEndPos) {
+			indentCount--
+		}
+
+		trimedLine := strings.Trim(line, " \t")
+		if trimedLine == "" {
+			file.Write([]byte("\n"))
+		} else {
+			if indentCount < 0 {
+				log.Fatalf("indent Count negative in %v at line %v\n", filename, ln)
+			}
+
+			file.Write([]byte(strings.Repeat(indent, indentCount) + trimedLine + "\n"))
+		}
+
+		if !inMultiLineComment && openPos > -1 && (closePos == -1 || openPos > closePos) && (singleCommentPos == -1 || openPos < singleCommentPos) &&
+			(multiLineCommentStartPos == -1 || openPos < multiLineCommentStartPos) &&
+			(multiLineCommentEndPos == -1 || openPos > multiLineCommentEndPos) {
+			indentCount++
+		}
+
+		if multiLineCommentStartPos > -1 {
+			inMultiLineComment = true
+		}
+
+		if multiLineCommentEndPos > -1 {
+			inMultiLineComment = false
+		}
+
+	}
+
+}