tzxls accepts multiple files

docs/tzxls.md

@@ -7,10 +7,10 @@ Ths tool shows the block numbers, block types and some block contents of a TZX f
 ## Usage
 
 ```
-tzxls [-h] [-s] [file]
+tzxls [-h] [-s] file [file ...]
 ```
 
-* `file`: TZX file to read from, or `stdin` if not given.
+* `file`: TZX file or files to read from, or `stdin` if not given.
 * `-s`, `--short`: Only shows the names found in ZX Spectrum file headers.
 * `-h`, `--help`: Show help message and exit.
 

tzxls

@@ -26,23 +26,26 @@ from tzxlib.tzxfile import TzxFile
 
 parser = argparse.ArgumentParser(description='List the contents of a TZX file')
 parser.add_argument('file',
-            nargs='?',
-            default='/dev/stdin',
-            help='TZX file, stdin if omitted')
+            nargs='*',
+            help='TZX files, stdin if omitted')
 parser.add_argument('-s', '--short',
             dest='short',
             action='store_true',
             help='list only the ZX Spectrum header names')
 args = parser.parse_args()
 
-file = TzxFile()
-file.read(args.file)
+for f in args.file if len(args.file) > 0 else ['/dev/stdin']:
+    if len(args.file) > 1:
+        print('\n%s:' % (f))
 
-cnt = 0
-for b in file.blocks:
-    if args.short:
-        if hasattr(b, 'tap') and isinstance(b.tap, TapHeader):
-            print('%s: %s' % (b.tap.type(), b.tap.name()))
-    else:
-        print('%3d  %-27s %s' % (cnt, b.type, str(b)))
-    cnt += 1
+    tzx = TzxFile()
+    tzx.read(f)
+
+    cnt = 0
+    for b in tzx.blocks:
+        if args.short:
+            if hasattr(b, 'tap') and isinstance(b.tap, TapHeader):
+                print('%s: %s' % (b.tap.type(), b.tap.name()))
+        else:
+            print('%3d  %-27s %s' % (cnt, b.type, str(b)))
+        cnt += 1