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246 lines
9.4 KiB
Lua
246 lines
9.4 KiB
Lua
-- import addon read namespace from global env
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local _G = _G
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local Grichelde = _G.Grichelde
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local ipairs, tContains, tFilter, tInsert, tConcat, find, sub, gsub, match, toLower, trim, length
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= Grichelde.functions.ipairs, Grichelde.functions.tContains, Grichelde.functions.tFilter, Grichelde.functions.tInsert, Grichelde.functions.tConcat, Grichelde.functions.find, Grichelde.functions.sub, Grichelde.functions.gsub, Grichelde.functions.match, Grichelde.functions.toLower, Grichelde.functions.trim, Grichelde.functions.length
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--- Before a chat message is sent, check if replacement is required and replace the text accordingly.
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--- @param message string
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--- @param type string
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--- @param language string
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--- @param channel string
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function Grichelde:SendChatMessage(message, type, language, channel, ...)
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local replacedText = self:CheckAndReplace(message, type)
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self:DebugPrint("SendChatMessage : replacedText: " .. replacedText)
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-- Send text in chunks if length exceeds 255 bytes after replacement
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local chunks = self:SplitText(replacedText)
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self:DebugPrint("SendChatMessage : #chunks: " .. #chunks)
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for _, chunk in ipairs(chunks) do
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self.hooks["SendChatMessage"](chunk, type, language, channel, ...);
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end
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end
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function Grichelde:CheckAndReplace(message, type)
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local text = message
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if (self:CheckReplacement(text, type)) then
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if (_G.Misspelled) then
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self:DebugPrint("Misspelled detected: cleansing message")
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text = _G.Misspelled:RemoveHighlighting(text)
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end
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text = self:ReplaceText(trim(text))
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end
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return text
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end
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function Grichelde:CheckReplacement(text, channel)
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if (not self.db.profile.enabled) then
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self:DebugPrint("CheckReplacement : disabled")
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return false
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end
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-- check channel type
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local allowedChannels = tFilter(self.db.profile.channels,
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function(_,v) return v == true end,
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function(k,_) return k end
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)
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self:DebugPrint("CheckReplacement : allowed channels: %s", tConcat(allowedChannels, ", "))
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local type = self:ConvertBlizChannelToType(channel)
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if (type ~= nil and not tContains(allowedChannels, type)) then
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self:DebugPrint("CheckReplacement : skip channel type %s", type)
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return false
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end
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-- don't replace slash commands except chat related commands
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if sub(text, 1, 1) == "/" then
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local firstWord, _ = self:SplitOnFirstMatch(text)
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-- todo: adapt allowed slash commands
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if (firstWord == nil or not tContains(self.slashCommands, firstWord)) then
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self:DebugPrint("CheckReplacement : ignore slash command")
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return false
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end
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end
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-- in any other case
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return true
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end
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function Grichelde:ConvertBlizChannelToType(channel)
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local type = toLower(channel)
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self:DebugPrint("ConvertBlizChannelToType : convert %s to %s", channel, type)
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return type
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end
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--- Checks if the text starts with a preversable ignore pattern, such as itemLinks, textures or raid target icons
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--- and returns the end location of the match, or 0 if no pattern was found
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--- @param text string
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--- @return number
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function Grichelde:CheckForPreversableText(text)
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self:DebugPrint("CheckForPreversableText : text is " .. text)
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-- do not replace these patterns
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local ignorePatterns = {
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"|[Cc]%x%x%x%x%x%x%x%x.-|r", -- colored items (or links)
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"|H.-|h", -- item links (http://www.wowwiki.com/ItemLink)
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"|T.-|t", -- textures
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"|n", -- newline
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"{rt[1-8]}", -- rumbered raid target icons
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"{Star}", -- named raid target icon 1
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"{Circle}", -- named raid target icon 2
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"{Coin}", -- named raid target icon 2
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"{Diamond}", -- named raid target icon 3
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"{Triangle}", -- named raid target icon 4
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"{Moon}", -- named raid target icon 5
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"{Square}", -- named raid target icon 6
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"{Cross}", -- named raid target icon 7
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"{X}", -- named raid target icon 7
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"{Skull}" -- named raid target icon 8
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}
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-- Calling find on ever pattern might be inefficient but its way less code.
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for _, pattern in ipairs(ignorePatterns) do
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local pos1, pos2 = find(text, pattern)
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if pos1 == 1 and pos2 ~= nil then
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self:DebugPrint("CheckForPreversableText : Found ignore pattern \"%s\" at (%d, %d)", pattern, pos1, pos2)
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return pos2
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end
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end
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self:DebugPrint("CheckForPreversableText : no ignore pattern found")
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return 0
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end
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--- Replaces all character occurrences for which replacements have been defined in the options,
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--- while preserving any itemLinks or textures. (http://www.wowwiki.com/ItemLink)
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--- @param text string
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--- @return string
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function Grichelde:ReplaceText(text)
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local finalText = ""
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local newText = text
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-- don't replace non-chat related slash commands
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local firstWord, line = self:SplitOnFirstMatch(text)
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if (firstWord ~= nil and tContains(self.slashCommands, firstWord)) then
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self:DebugPrint("ReplaceText : Found slash command %s", firstWord )
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-- skip chat slash command
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finalText = finalText .. firstWord .. ' '
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newText = line
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end
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local current = 1
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local lastStart = 1
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while current <= length(newText) do
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local currentChar = sub(newText, current, current)
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self:DebugPrint("current/char : %s,%s", current, currentChar)
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if currentChar ~= '|' and currentChar ~= '{' then
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current = current + 1
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else
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-- lookahead-check for itemLinks, textures and raid target icons
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local textAhead = sub(newText, current)
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local posEnd = self:CheckForPreversableText(textAhead)
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if posEnd > 0 then
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self:DebugPrint("ReplaceText : Found an ignore pattern")
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local textBehind = sub(newText, lastStart, current - 1)
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local replacement = self:ReplaceCharacters(textBehind)
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local preservedText = sub(textAhead, 1, posEnd)
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finalText = finalText .. replacement .. preservedText
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current = current + posEnd
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lastStart = current
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self:DebugPrint("ReplaceText : restarting at " .. lastStart)
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else
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-- no corresponding end was found to start pattern, continue loop with next char
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current = current + 1
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end
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end
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end
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-- cleanup remaining text to the end
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local remainingText = sub(newText, lastStart)
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local replacement = self:ReplaceCharacters(remainingText)
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finalText = finalText .. replacement
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self:DebugPrint("ReplaceText : replaced \"" .. text .. "\"")
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self:DebugPrint("ReplaceText : with \"" .. finalText .. "\"")
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return finalText
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end
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--- Replaces all character occurrences for which replacements have been defined in the options
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--- @param text string
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--- @return string
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function Grichelde:ReplaceCharacters(text)
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-- todo: read from options
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-- todo: case (in)sensitivity
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-- todo: consolidate consecutive
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-- todo: prevent infinite loops - is that even possible?
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local replacement = text
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replacement = gsub(replacement, "s", "ch")
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replacement = gsub(replacement, "S", "Ch")
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replacement = gsub(replacement, "t", "k")
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replacement = gsub(replacement, "T", "K")
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self:DebugPrint("ReplaceCharacters : replaced \"%s\" with \"%s\"", text, replacement)
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return replacement
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end
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--- Splits a long text in longest possible chunks of <= 255 length, split at last available space
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--- @param text string
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--- @return table
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function Grichelde:SplitText(text)
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local chunks = {}
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local splitText = text
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local textSize = length(splitText)
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while textSize > 255 do
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local chunk = sub(splitText, 1, 255)
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local remaining = ""
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-- special case: if space is the start of the next chunk, don't split this chunk
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if sub(splitText, 256, 256) ~= ' ' then
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-- split at last space, don't assign directly as nil might be returned
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local left, right = self:SplitOnLastMatch(chunk)
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if left ~= nil then
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chunk = left
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end
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if right ~= nil then
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remaining = right
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end
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end
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self:DebugPrint("SplitText : chunk: " .. chunk )
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tInsert(chunks, chunk)
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splitText = remaining .. sub(splitText, 256)
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textSize = length(splitText)
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end
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-- pickup remaining text < 255
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self:DebugPrint("SplitText : last chunk: " .. splitText)
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tInsert(chunks, splitText)
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return chunks
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end
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-- split at first word of a text line
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function Grichelde:SplitOnFirstMatch(text, start)
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self:DebugPrint("SplitOnFirstMatch : text: %s, start: %d", text, start)
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local pos = start or 1
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local left, right = match(text, "^.- .+", pos)
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self:DebugPrint("SplitOnFirstMatch : left: %s, right: %s", left, right)
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return left or text, right
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end
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-- split at last word of a text line
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function Grichelde:SplitOnLastMatch(text, start)
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self:DebugPrint("SplitOnLastMatch : text: %s, start: %d", text, start)
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local pos = start or 1
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local left, right = match(text, ".+ .-$", pos)
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self:DebugPrint("SplitOnLastMatch : left: %s, right: %s", left, right)
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return left, right or text
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end
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