Fix - Regular Expression text in ignore and trigger were not processing correctly, also refactored for lower CPU usage (#1747)

changedetectionio/tests/test_ignore_regex_text.py

@@ -15,11 +15,24 @@ def test_strip_regex_text_func():
     but sometimes we want to remove the lines.
     
     but 1 lines
+    skip 5 lines
+    really? yes man
+#/not this tries weirdly formed regex or just strings starting with /
+/not this
     but including 1234 lines
     igNORe-cAse text we dont want to keep    
     but not always."""
 
-    ignore_lines = ["sometimes", "/\s\d{2,3}\s/", "/ignore-case text/"]
+
+    ignore_lines = [
+        "sometimes",
+        "/\s\d{2,3}\s/",
+        "/ignore-case text/",
+        "really?",
+        "/skip \d lines/i",
+        "/not"
+    ]
+
 
     fetcher = fetch_site_status.perform_site_check(datastore=False)
     stripped_content = html_tools.strip_ignore_text(test_content, ignore_lines)
@@ -27,4 +40,10 @@ def test_strip_regex_text_func():
     assert b"but 1 lines" in stripped_content
     assert b"igNORe-cAse text" not in stripped_content
     assert b"but 1234 lines" not in stripped_content
+    assert b"really" not in stripped_content
+    assert b"not this" not in stripped_content
+
+    # Check line number reporting
+    stripped_content = html_tools.strip_ignore_text(test_content, ignore_lines, mode="line numbers")
+    assert stripped_content == [2, 5, 6, 7, 8, 10]