read highlighters from settings.ini

highlighting.py

@@ -0,0 +1,57 @@
+import logging
+import re
+
+from PyQt6.QtGui import QBrush, QColor
+
+from highlight import Highlight
+from highlight_regex import HighlightRegex
+from settings import Settings
+
+log = logging.getLogger("highlighting")
+
+
+class Highlighting:
+
+    @staticmethod
+    def read_config(settings: Settings) -> [Highlight]:
+        result = []
+        config = settings.config
+
+        for section in config.sections():
+            if not section.startswith("highlighting."):
+                continue
+
+            query = config.get(section, "query", fallback="")
+            if len(query) == 0:
+                continue
+            ignore_case = config.getboolean(section, "ignore-case", fallback=True)
+            is_regex = config.getboolean(section, "is-regex", fallback=False)
+            line_background_color = Highlighting.brush(config.get(section, "line.background.color", fallback="None"))
+            hit_background_color = Highlighting.brush(config.get(section, "hit.background.color", fallback="None"))
+            try:
+                flags = re.IGNORECASE if ignore_case else 0
+                if is_regex:
+                    regex = re.compile(query, flags=flags)
+                else:
+                    regex = re.compile(re.escape(query), flags=flags)
+            except:
+                log.exception("failed to parse query for highlighter: %s" % section)
+                continue
+
+            highlight = HighlightRegex(
+                regex=regex,
+                brush=hit_background_color,
+                brush_full_line=line_background_color
+            )
+            result.append(highlight)
+
+        return result
+
+    @staticmethod
+    def brush(color: str) -> QBrush:
+        if re.match("[0-9a-f]{6}", color, flags=re.IGNORECASE):
+            red = int(color[0:2], 16)
+            green = int(color[2:4], 16)
+            blue = int(color[4:6], 16)
+            return QBrush(QColor(red, green, blue))
+        return QBrush()