[ReaderDictionary] Clean interpuncts, pipes and up arrows from text selection (#14031)

frontend/apps/reader/modules/readerdictionary.lua

@@ -852,6 +852,9 @@ function ReaderDictionary:cleanSelection(text, is_sane)
         text = text:gsub("\u{2019}", "'") -- Right single quotation mark
         -- Strip punctuation characters around selection
         text = util.stripPunctuation(text)
+        -- In some dictionaries, both interpuncts (·) and pipes (|) are used to delimiter syllables.
+        -- Up arrows (↑), are used in some dictionaries to indicate related words.
+        text = text:gsub("[·|↑]", "")
         -- Strip some common english grammatical construct
         text = text:gsub("'s$", '') -- english possessive
         -- Strip some common french grammatical constructs