Make old timestamp format "DD.MM.YY" configurable

[yuchangyuan]

Telega Setup

OS: Linux xps13 4.19.115 #1-NixOS SMP Mon Apr 13 08:45:17 UTC 2020 x86_64 GNU/Linux
Emacs: GNU Emacs 28.0.50 (build 1, x86_64-pc-linux-gnu, GTK+ Version 3.24.10, cairo version 1.16.0)
Telega: telega v0.5.4 (TDLib version 1.6.0)

Install method: NixOS

Current Behavior

timestamp not in current week will always format to "DD.MM.YY", its better to be able to change to "YY-MM-DD" or "YY/MM/DD" or other format.

Steps to Reproduce

1. open any chat with history more than 1week.
2. timestamp will show as "DD.MM.YY" format.

Possible Solution

use add-function to override telega-ins--date

[zevlg]

Use this in your configuration to get YY-MM-DD formatting:

(defun my-date-ins (orig-ins-func timestamp)
  (telega-ins
   (replace-regexp-in-string
    "\\." "-" (telega-ins--as-string
               (funcall orig-ins-func timestamp)))))

(advice-add 'telega-ins--date :around 'my-date-ins)