Add clip_prompt feature to contentreplace.

Useful when contentreplacing strings that are difficult or
impossible to provide via the command line -- you can enable
clip prompt to read those strings off of your clipboard.

Toolbox/contentreplace.py

@@ -2,6 +2,8 @@ import argparse
 import codecs
 import glob
 import sys
+import pyperclip
+
 
 def contentreplace(filename, replace_from, replace_to, autoyes=False):
     f = open(filename, 'r', encoding='utf-8')
@@ -26,11 +28,23 @@ def contentreplace(filename, replace_from, replace_to, autoyes=False):
 
 def contentreplace_argparse(args):
     filenames = glob.glob(args.filename_glob)
+
+    if args.clip_prompt:
+        replace_from = input('Ready from')
+        if not replace_from:
+            replace_from = pyperclip.paste()
+        replace_to = input('Ready to')
+        if not replace_to:
+            replace_to = pyperclip.paste()
+    else:
+        replace_from = codecs.decode(args.replace_from, 'unicode_escape')
+        replace_to = codecs.decode(args.replace_to, 'unicode_escape')
+
     for filename in filenames:
         contentreplace(
             filename,
-            codecs.decode(args.replace_from, 'unicode_escape'),
-            codecs.decode(args.replace_to, 'unicode_escape'),
+            replace_from,
+            replace_to,
             autoyes=args.autoyes,
         )
 
@@ -41,6 +55,7 @@ def main(argv):
     parser.add_argument('replace_from')
     parser.add_argument('replace_to')
     parser.add_argument('-y', '--yes', dest='autoyes', action='store_true', help='accept results without confirming')
+    parser.add_argument('--clip_prompt', dest='clip_prompt', action='store_true')
     parser.set_defaults(func=contentreplace_argparse)
 
     args = parser.parse_args(argv)