Improvements to the interactive terminal

Added terminal command editing and autocomplete support on non-Windows
platforms.

Author: beevik

.travis.yml

@@ -13,6 +13,7 @@ import (
 	"io"
 	"io/ioutil"
 	"os"
+	"path/filepath"
 	"strconv"
 	"strings"
 
@@ -340,6 +341,56 @@ const (
 	Verbose Option = 1 << iota // verbose output during assembly
 )
 
+// AssembleFile reads a file containing 6502 assembly code, assembles it,
+// and produces a binary output file and a source map file.
+func AssembleFile(path string, options Option, out io.Writer) error {
+	inFile, err := os.Open(path)
+	if err != nil {
+		return err
+	}
+	defer inFile.Close()
+
+	assembly, sourceMap, err := Assemble(inFile, path, out, options)
+	if err != nil {
+		for _, e := range assembly.Errors {
+			fmt.Fprintln(out, e)
+		}
+		return err
+	}
+
+	ext := filepath.Ext(path)
+	prefix := path[:len(path)-len(ext)]
+	binPath := prefix + ".bin"
+	binFile, err := os.OpenFile(binPath, os.O_WRONLY|os.O_CREATE|os.O_TRUNC, 0600)
+	if err != nil {
+		return err
+	}
+	defer binFile.Close()
+
+	_, err = assembly.WriteTo(binFile)
+	if err != nil {
+		return err
+	}
+
+	mapPath := prefix + ".map"
+	mapFile, err := os.OpenFile(mapPath, os.O_WRONLY|os.O_CREATE|os.O_TRUNC, 0600)
+	if err != nil {
+		return err
+	}
+	defer mapFile.Close()
+
+	_, err = sourceMap.WriteTo(mapFile)
+	if err != nil {
+		return err
+	}
+
+	fmt.Fprintf(out, "Assembled '%s' to produce '%s' and '%s'.\n",
+		filepath.Base(path),
+		filepath.Base(binPath),
+		filepath.Base(mapPath))
+	return nil
+}
+
 // Assemble reads data from the provided stream and attempts to assemble it
 // into 6502 byte code.
 func Assemble(r io.Reader, filename string, out io.Writer, options Option) (*Assembly, *SourceMap, error) {

asm/asm.go

@@ -3,6 +3,7 @@ module github.com/beevik/go6502
 go 1.18
 
 require (
-	github.com/beevik/cmd v0.1.1
-	github.com/beevik/prefixtree v0.1.1
+	github.com/beevik/cmd v0.2.0
+	github.com/beevik/prefixtree v0.3.0
+	golang.org/x/sys v0.9.0
 )

go.mod

@@ -1,4 +1,6 @@
-github.com/beevik/cmd v0.1.1 h1:PC4xoLefEr8ZpmqBSjRfmHrk0SHkbINgkaF3wKoxJB4=
-github.com/beevik/cmd v0.1.1/go.mod h1:b2WLULHig7E5Hfi62RoteKhCdWgKF70aasKzsfNHtPQ=
-github.com/beevik/prefixtree v0.1.1 h1:Gu3eJhm8kPGsVK5HScNN341QtvrIx1YIZlez4FXimLU=
-github.com/beevik/prefixtree v0.1.1/go.mod h1:ZlIK0SfqXT3KN3A22iY+aN6Kt/scvGDx0iYzK9ijn1M=
+github.com/beevik/cmd v0.2.0 h1:hF8OjBGkaSig01upnKOX3Gv/I2+fSU4gZPv+9X2tAkM=
+github.com/beevik/cmd v0.2.0/go.mod h1:4FhajmCR0XjQanKhv+9TxFnXPYPHaf7PmhG8OaV0N5o=
+github.com/beevik/prefixtree v0.3.0 h1:X8HA4v10I1xaaCAALFg+JBgvMvVjIs9ZkwjFSwPK3So=
+github.com/beevik/prefixtree v0.3.0/go.mod h1:fRm/Aykn4/iqlmGeA2p1HQdQFOV33boGuK+43GRSZvE=
+golang.org/x/sys v0.9.0 h1:KS/R3tvhPqvJvwcKfnBHJwwthS11LRhmM5D59eEXa0s=
+golang.org/x/sys v0.9.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=