Get the word that is being completed the proper way

Simplify emoji_completion_cb by using hook_completion_get_string to get
the string that is being completed, instead of reading it out from the
contents of the input.

1 files changed, 4 insertions, 4 deletions

diff --git a/wee_slack.py b/wee_slack.py
index dbe6446..4ac73c4 100644
--- a/wee_slack.py
+++ b/wee_slack.py
@@ -1002,10 +1002,10 @@ def emoji_completion_cb(data, completion_item, current_buffer, completion):
     if current_channel is None:
         return w.WEECHAT_RC_OK
 
-    line_input = w.buffer_get_string(current_buffer, "input")
-    current_pos = w.buffer_get_integer(current_buffer, "input_pos")
-    current_word_match = re.search(r'[^: ]*:', line_input[:current_pos].split()[-1])
-    prefix = current_word_match.group(0) if current_word_match else ':'
+    base_word = w.hook_completion_get_string(completion, "base_word")
+    if ":" not in base_word:
+        return w.WEECHAT_RC_OK
+    prefix = base_word.split(":")[0] + ":"
 
     for emoji in current_channel.team.emoji_completions:
         w.hook_completion_list_add(completion, prefix + emoji + ":", 0, w.WEECHAT_LIST_POS_SORT)