Set correct id on all the lines of a message

Instead of only updating the last line printed with the id of the
message (ts.minor, set in the date_printed field), update all of the
lines that is printed for that message.

This is necessary for updating all of the lines on changes, instead of
only the last. This will be implemented in the next commit.

This assumes that the lines after the first in messages always has an
empty prefix, and that the first line of a message always has a prefix.
This holds for the messages I have seen (single-line, multi-line as well
as me-messages and joins/quits).

Other approaches I considered was to count the number of newlines in the
message and update the same number of lines, or to check the existing
date_printed field of the messages and update the ones that had 10
digits or more (since current timestamps has that, and the slack id
currently has 6 digits). However, I dropped them in favor of the prefix
solution which seems better.

1 files changed, 11 insertions, 4 deletions

diff --git a/wee_slack.py b/wee_slack.py
index 680ff6b..7fd6313 100644
--- a/wee_slack.py
+++ b/wee_slack.py
@@ -2751,10 +2751,17 @@ def modify_print_time(buffer, new_id, time):
         struct_hdata_line = w.hdata_get('line')
         struct_hdata_line_data = w.hdata_get('line_data')
 
-        # get a pointer to the data in line_pointer via layout of struct_hdata_line
-        data = w.hdata_pointer(struct_hdata_line, line_pointer, 'data')
-        if data:
-            w.hdata_update(struct_hdata_line_data, data, {"date_printed": new_id})
+        prefix = ''
+        while not prefix and line_pointer:
+            # get a pointer to the data in line_pointer via layout of struct_hdata_line
+            data = w.hdata_pointer(struct_hdata_line, line_pointer, 'data')
+            if data:
+                prefix = w.hdata_string(struct_hdata_line_data, data, 'prefix')
+                w.hdata_update(struct_hdata_line_data, data, {"date_printed": new_id})
+            # move backwards one line and repeat, so all the lines of the message are set
+            # exit when you reach a prefix, which means you have reached the
+            # first line of the message, or if you hit the end
+            line_pointer = w.hdata_move(struct_hdata_line, line_pointer, -1)
 
     return w.WEECHAT_RC_OK