llcppsymg & llcppsigfetch parse args

chore/_xtool/llcppsymg/args/args.go

@@ -0,0 +1,51 @@
+package args
+
+import "strings"
+
+type Args struct {
+	Help     bool
+	Verbose  bool
+	UseStdin bool
+	CfgFile  string
+}
+
+func ParseArgs(args []string, swflags map[string]bool) (*Args, []string) {
+	result := &Args{}
+	filteredArgs := []string{}
+	for i := 0; i < len(args); i++ {
+		arg := args[i]
+		if strings.HasPrefix(arg, "-") {
+			switch arg {
+			case "-h", "--help":
+				result.Help = true
+				continue
+			case "-v":
+				result.Verbose = true
+				continue
+			case "-":
+				result.UseStdin = true
+				continue
+			default:
+				if hasArg, ok := swflags[arg]; ok {
+					if hasArg {
+						filteredArgs = append(filteredArgs, arg)
+						for i+1 < len(args) && !strings.HasPrefix(args[i+1], "-") {
+							filteredArgs = append(filteredArgs, args[i+1])
+							i++
+						}
+						continue
+					}
+				}
+				filteredArgs = append(filteredArgs, arg)
+			}
+		} else if result.CfgFile == "" {
+			result.CfgFile = arg
+		} else {
+			filteredArgs = append(filteredArgs, arg)
+		}
+	}
+	if result.CfgFile == "" {
+		result.CfgFile = "llcppg.cfg"
+	}
+	return result, filteredArgs
+}