package doodle import ( "fmt" "os" "path/filepath" "regexp" "runtime" "strings" "git.kirsle.net/apps/doodle/pkg/bindata" "git.kirsle.net/apps/doodle/pkg/log" "git.kirsle.net/apps/doodle/pkg/userdir" ) // Regexp to match simple filenames for maps and doodads. var reSimpleFilename = regexp.MustCompile(`^([A-Za-z0-9-_.,+ '"\[\](){}]+)$`) /* EditFile opens a drawing file (Level or Doodad) in the EditorScene. The filename can be one of the following: - A simple filename with no path separators in it and/or no file extension. - An absolute path beginning with "/" - A relative path beginning with "./" If the filename has an extension (`.level` or `.doodad`), that will disambiguate how to find the file and which mode to start the EditorMode in. Otherwise, the "levels" folder is checked first and the "doodads" folder second. */ func (d *Doodle) EditFile(filename string) error { var absPath string // Is it a simple filename? if m := reSimpleFilename.FindStringSubmatch(filename); len(m) > 0 { log.Debug("EditFile: simple filename %s", filename) extension := strings.ToLower(filepath.Ext(filename)) // Check the system level storage. TODO: no editing of system levels if _, err := bindata.Asset("assets/levels/" + filename); err == nil { log.Info("Found level %s in bindata", filename) return d.EditDrawing(filename) } // Check the user's levels directory. In WASM this will check in // localStorage. if foundFilename := userdir.ResolvePath(filename, extension, false); foundFilename != "" { log.Info("EditFile: resolved name '%s' to path %s", filename, foundFilename) absPath = foundFilename } else { return fmt.Errorf("EditFile: %s: no level or doodad found", filename) } } else { log.Debug("Not a simple: %s %+v", filename, reSimpleFilename) // WASM: no filesystem access. if runtime.GOOS == "js" { log.Error("EditFile(%s): wasm can't open file paths", filename) return fmt.Errorf("EditFile(%s): wasm can't open file paths", filename) } if _, err := os.Stat(filename); !os.IsNotExist(err) { log.Debug("EditFile: verified path %s exists", filename) absPath = filename } } return d.EditDrawing(absPath) }