formatter: add {:sanitize} to return song or song [feat]

py3status/constants.py

@@ -270,3 +270,31 @@
 MARKUP_LANGUAGES = ["pango", "none"]
 
 ON_ERROR_VALUES = ["hide", "show"]
+
+SANITIZE_TITLES = "|".join(
+    [
+        "bonus",
+        "demo",
+        "edit",
+        "explicit",
+        "extended",
+        "feat",
+        "mono",
+        "remaster",
+        "stereo",
+        "version",
+    ]
+)
+
+SANITIZE_PATTERNS = {
+    # Match brackets with their content containing any metadata word.
+    #   (Remastered 2017)
+    #   [Single]
+    #   (Bonus Track)
+    "inside_brackets": r"([\(\[][^)\]]*?({})[^)\]]*?[\)\]])".format(SANITIZE_TITLES),
+    # Match string after hyphen, comma, semicolon or slash containing any metadata word.
+    #   - Remastered 2012
+    #   / Radio Edit
+    #   ; Remastered
+    "after_delimiter": r"([\-,;/])([^\-,;/])*({}).*".format(SANITIZE_TITLES),
+}

py3status/formatter.py

@@ -5,7 +5,7 @@
 from urllib.parse import parse_qsl
 
 from py3status.composite import Composite
-from py3status.constants import COLOR_NAMES, COLOR_NAMES_EXCLUDED
+from py3status.constants import COLOR_NAMES, COLOR_NAMES_EXCLUDED, SANITIZE_PATTERNS
 
 
 def expand_color(color, default=None, passthrough=False, block=None):
@@ -296,10 +296,35 @@ class Placeholder:
     Class representing a {placeholder}
     """
 
+    sanitized_regex_cache = {}
+    sanitized_string_cache = {}
+
     def __init__(self, key, format):
         self.key = key
         self.format = format
 
+    def _sanitize(self, string):
+        """
+        Remove redundant metadata from string and return it
+        """
+        try:
+            return self.sanitized_string_cache[string]
+        except KeyError:
+            cache_key = string
+
+        # add compiled sanitized regexes to the cache
+        if not self.sanitized_regex_cache:
+            for sanitize_key, sanitize_value in SANITIZE_PATTERNS.items():
+                self.sanitized_regex_cache[sanitize_key] = re.compile(sanitize_value, re.IGNORECASE)
+
+        # sanitize the strings
+        for pattern in self.sanitized_regex_cache.values():
+            string = re.sub(pattern, "", string).strip()
+
+        # add sanitized strings to the cache
+        self.sanitized_string_cache[cache_key] = string
+        return string
+
     def get(self, get_params, block):
         """
         return the correct value for the placeholder
@@ -327,6 +352,8 @@ def get(self, get_params, block):
                         value = float(value)
                     if "d" in self.format:
                         value = int(float(value))
+                    if "sanitize" in self.format:
+                        value = self._sanitize(value)
                     output = f"{{[{self.key}]{self.format}}}"
                     value = output.format({self.key: value})
                     value_ = float(value)

py3status/modules/spotify.py

@@ -15,11 +15,6 @@
         (default 'Spotify not running')
     format_stopped: define output if spotify is not playing
         (default 'Spotify stopped')
-    sanitize_titles: whether to remove meta data from album/track title
-        (default True)
-    sanitize_words: which meta data to remove
-        *(default ['bonus', 'demo', 'edit', 'explicit', 'extended',
-            'feat', 'mono', 'remaster', 'stereo', 'version'])*
 
 Format placeholders:
     {album} album name
@@ -60,7 +55,6 @@
 {'color': '#FF0000', 'full_text': 'Spotify stopped'}
 """
 
-import re
 from datetime import timedelta
 from time import sleep
 
@@ -82,47 +76,10 @@ class Py3status:
     format = "{artist} : {title}"
     format_down = "Spotify not running"
     format_stopped = "Spotify stopped"
-    sanitize_titles = True
-    sanitize_words = [
-        "bonus",
-        "demo",
-        "edit",
-        "explicit",
-        "extended",
-        "feat",
-        "mono",
-        "remaster",
-        "stereo",
-        "version",
-    ]
 
     def _spotify_cmd(self, action):
         return SPOTIFY_CMD.format(dbus_client=self.dbus_client, cmd=action)
 
-    def post_config_hook(self):
-        """ """
-        # Match string after hyphen, comma, semicolon or slash containing any metadata word
-        # examples:
-        # - Remastered 2012
-        # / Radio Edit
-        # ; Remastered
-        self.after_delimiter = self._compile_re(r"([\-,;/])([^\-,;/])*(META_WORDS_HERE).*")
-
-        # Match brackets with their content containing any metadata word
-        # examples:
-        # (Remastered 2017)
-        # [Single]
-        # (Bonus Track)
-        self.inside_brackets = self._compile_re(r"([\(\[][^)\]]*?(META_WORDS_HERE)[^)\]]*?[\)\]])")
-
-    def _compile_re(self, expression):
-        """
-        Compile given regular expression for current sanitize words
-        """
-        meta_words = "|".join(self.sanitize_words)
-        expression = expression.replace("META_WORDS_HERE", meta_words)
-        return re.compile(expression, re.IGNORECASE)
-
     def _get_playback_status(self):
         """
         Get the playback status. One of: "Playing", "Paused" or "Stopped".
@@ -145,9 +102,6 @@ def _get_text(self):
                 microtime = metadata.get("mpris:length")
                 rtime = str(timedelta(seconds=microtime // 1_000_000))
                 title = metadata.get("xesam:title")
-                if self.sanitize_titles:
-                    album = self._sanitize_title(album)
-                    title = self._sanitize_title(title)
 
                 playback_status = self._get_playback_status()
                 if playback_status == "Playing":
@@ -176,14 +130,6 @@ def _get_text(self):
         except Exception:
             return (self.format_down, self.py3.COLOR_OFFLINE or self.py3.COLOR_BAD)
 
-    def _sanitize_title(self, title):
-        """
-        Remove redundant metadata from title and return it
-        """
-        title = re.sub(self.inside_brackets, "", title)
-        title = re.sub(self.after_delimiter, "", title)
-        return title.strip()
-
     def spotify(self):
         """
         Get the current "artist - title" and return it.