Add command for generating fragment with occurrence number.

av98.py

@@ -1470,19 +1470,33 @@ Use 'ls -l' to see URLs."""
 
     @needs_gi
     def do_fragment(self, *args):
-        """Add search fragment to the current URI."""
-        err = """Please provide text to include in the fragment."""
+        """Add search fragment to the current URI.
+Select Nth occurence of text: -tN."""
+        err = """Please provide text to include in the fragment.
+Select Nth occurence of text: -tN."""
         if not self.mime == 'text/gemini':
             print("Can't generate fragment for %s." % self.mime)
             return
-        fragment_input = args[0]
-        if not fragment_input:
+        # Get fragment text and occurrence number.
+        fragment_text = args[0]
+        occurrence = 0
+        if args[0][0:2] == '-t':
+            split = args[0][2:].split(' ')
+            if split[0].isdigit():
+                occurrence = int(split[0])
+            if len(split) > 1 or not occurrence:
+                fragment_text = ' '.join(split[1:])  # all but the first element
+            else:
+                fragment_text = ''
+        if not fragment_text:
             print(err)
             return
+        # Convert occurrence number to string.
+        occurrence = ':%d' % occurrence if occurrence else ''
         # Percent-encode input, append as fragment and visit the new URI.
         uri_without_fragment = self.gi.url.split('#')[0]
         self.do_go(uri_without_fragment\
-                + '#' + urllib.parse.quote(fragment_input))
+                + '#' + urllib.parse.quote(fragment_text) + occurrence)
 
     @needs_gi
     def do_fold(self, *args):