Supress bold while preserving colours (hashtag1169)

[vikramsubramanian]

I am quite happy with the default colours, however the bold text looks off.

Is there a way to preserve all decorations, but remove the bold? )

[mayil-ai[bot]]

Some past issues to consider:

• Is there an easy way to temporarily disable colors? (hashtag578) | Discusses disabling colors, relevant to modifying text decorations.

Here are some code snippets that may help you get started:

• loguru/_colorizer.py:217-274 | The feed method in loguru/_colorizer.py needs to be updated to strip out the bold attribute if the LOGURU_NO_BOLD environment variable is set.

• loguru/_defaults.py:1-73 | The loguru/_defaults.py file needs to be updated to define the new LOGURU_NO_BOLD environment variable and adjust color settings accordingly.

To address the feature request of suppressing bold text in log messages while preserving other text decorations like colors, follow these steps:

• Introduce a new environment variable, LOGURU_NO_BOLD, to control the suppression of bold text.
• Update loguru/_defaults.py to check for the new environment variable and adjust the color settings accordingly.
• Modify loguru/_colorizer.py to respect the new environment variable and strip out the bold attribute from the text decorations.

Steps to Implement:

1. Add the new environment variable in loguru/_defaults.py:

   • Define LOGURU_NO_BOLD and set default color settings.
   • Adjust color settings based on the new environment variable.

   # loguru/_defaults.py
   LOGURU_NO_BOLD = env("LOGURU_NO_BOLD", bool, False)
   
   LOGURU_INFO_COLOR = env("LOGURU_INFO_COLOR", str, "<bold>")
   LOGURU_WARNING_COLOR = env("LOGURU_WARNING_COLOR", str, "<yellow><bold>")
   LOGURU_ERROR_COLOR = env("LOGURU_ERROR_COLOR", str, "<red><bold>")
   
   if LOGURU_NO_BOLD:
      LOGURU_INFO_COLOR = LOGURU_INFO_COLOR.replace("<bold>", "")
      LOGURU_WARNING_COLOR = LOGURU_WARNING_COLOR.replace("<bold>", "")
      LOGURU_ERROR_COLOR = LOGURU_ERROR_COLOR.replace("<bold>", "")

2. Update the feed method in loguru/_colorizer.py to strip out the bold attribute if the environment variable is set:

   # loguru/_colorizer.py
   def feed(self, text, *, raw=False):
      if raw:
          self._tokens.append((TokenType.TEXT, text))
          return
   
      position = 0
   
      for match in self._regex_tag.finditer(text):
          markup, tag = match.group(0), match.group(1)
   
          if LOGURU_NO_BOLD and "bold" in tag:
              tag = tag.replace("bold", "")
   
          self._tokens.append((TokenType.TEXT, text[position : match.start()]))
          position = match.end()
   
          if markup[0] == "\\":
              self._tokens.append((TokenType.TEXT, markup[1:]))
              continue
   
          if markup[1] == "/":
              if self._tags and (tag == "" or tag == self._tags[-1]):
                  self._tags.pop()
                  self._color_tokens.pop()
                  self._tokens.append((TokenType.CLOSING, "\033[0m"))
                  self._tokens.extend(self._color_tokens)
                  continue
              elif tag in self._tags:
                  raise ValueError('Closing tag "%s" violates nesting rules' % markup)
              else:
                  raise ValueError('Closing tag "%s" has no corresponding opening tag' % markup)
   
          if tag in {"lvl", "level"}:
              token = (TokenType.LEVEL, None)
          else:
              ansi = self._get_ansicode(tag)
   
              if ansi is None:
                  raise ValueError(
                      'Tag "%s" does not correspond to any known ansi directive, '
                      "make sure you did not misspelled it (or prepend '\\' to escape it)"
                      % markup
                  )
   
              token = (TokenType.ANSI, ansi)
   
          self._tags.append(tag)
          self._color_tokens.append(token)
          self._tokens.append(token)
   
      self._tokens.append((TokenType.TEXT, text[position:]))
   
   def done(self, *, strict=True):
      if strict and self._tags:
          faulty_tag = self._tags.pop(0)
          raise ValueError('Opening tag "<%s>" has no corresponding closing tag' % faulty_tag)
      return self._tokens
   
   def current_color_tokens(self):
      return list(self._color_tokens)

By following these steps, you will successfully suppress bold text in log messages while preserving other text decorations based on the new environment variable LOGURU_NO_BOLD.

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