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refactor: move config & core logic into separate modules
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,29 @@ | ||
| local M = {} | ||
| -------------------------------------------------------------------------------- | ||
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| ---@class customPatterns | ||
| ---@field patterns string[]? string array of lua patterns to match against. | ||
| ---@field overrideDefault boolean? set to false to extend the default patterns with customPatterns. Defaults to true. | ||
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| ---@class (exact) optsObj | ||
| ---@field skipInsignificantPunctuation boolean? | ||
| ---@field subwordMovement boolean? determines movement through camelCase and snake_case. Defaults to true. | ||
| ---@field customPatterns customPatterns|string[]? user defined patterns to match for motion movement | ||
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| ---@type optsObj | ||
| local defaultOpts = { | ||
| skipInsignificantPunctuation = true, | ||
| consistentOperatorPending = false, | ||
| subwordMovement = true, | ||
| customPatterns = { | ||
| patterns = {}, | ||
| overrideDefault = true, | ||
| }, | ||
| } | ||
| M.globalOpts = defaultOpts | ||
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| ---@param userOpts? optsObj | ||
| function M.setup(userOpts) M.globalOpts = vim.tbl_deep_extend("force", defaultOpts, userOpts or {}) end | ||
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| -------------------------------------------------------------------------------- | ||
| return M |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,81 @@ | ||
| local M = {} | ||
| local strFuncs = require("spider.utf8-support").stringFuncs | ||
| -------------------------------------------------------------------------------- | ||
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| -- INFO This method is necessary as opposed to a simple `:find`, to correctly | ||
| -- determine a word the cursor is already standing on. | ||
| ---@param line string | ||
| ---@param pattern string | ||
| ---@param endOfWord boolean look for the end of the pattern instead of the start | ||
| ---@param offset number -- look for the first match after this number | ||
| ---@nodiscard | ||
| ---@return number|nil returns nil if none is found | ||
| local function firstMatchAfter(line, pattern, endOfWord, offset) | ||
| -- special case: pattern with ^/$, since there can only be one match | ||
| -- and since gmatch won't work with them | ||
| if pattern:find("^%^") or pattern:find("%$$") then | ||
| if pattern:find("%$$") and offset > strFuncs.len(line) then return nil end -- checking for high col count for virtualedit | ||
| if pattern:find("^%^") and offset ~= 0 then return nil end | ||
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| local start, endPos = strFuncs.find(line, pattern) | ||
| if start == nil or endPos == nil then return nil end | ||
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| local pos = endOfWord and endPos or start | ||
| if pos > offset then | ||
| return pos | ||
| else | ||
| return nil | ||
| end | ||
| end | ||
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| if endOfWord then | ||
| pattern = pattern .. "()" -- INFO "()" makes gmatch return the position of that group | ||
| else | ||
| pattern = "()" .. pattern | ||
| end | ||
| -- `:gmatch` will return all locations in the string where the pattern is | ||
| -- found, the loop looks for the first one that is higher than the offset | ||
| -- to look from | ||
| for pos in strFuncs.gmatch(line, pattern) do | ||
| if type(pos) == "string" then return nil end | ||
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| if endOfWord then pos = pos - 1 end | ||
| if pos > offset then return pos end | ||
| end | ||
| return nil | ||
| end | ||
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| ---@param line string input string where to find the pattern | ||
| ---@param offset number position to start looking from | ||
| ---@param key "w"|"e"|"b"|"ge" the motion to perform | ||
| ---@param opts optsObj configuration table as in setup() | ||
| ---@nodiscard | ||
| ---@return number|nil pattern position, returns nil if no pattern was found | ||
| function M.getNextPosition(line, offset, key, opts) | ||
| local endOfWord = (key == "ge") or (key == "e") | ||
| local backwards = (key == "b") or (key == "ge") | ||
| local patterns = require("spider.pattern-variants").get(opts, backwards) | ||
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| if backwards then | ||
| line = strFuncs.reverse(line) | ||
| endOfWord = not endOfWord | ||
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| local isSameLine = offset ~= 0 | ||
| if isSameLine then offset = strFuncs.len(line) - offset + 1 end | ||
| end | ||
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| -- search for patterns, get closest one | ||
| local matches = {} | ||
| for _, pattern in pairs(patterns) do | ||
| local match = firstMatchAfter(line, pattern, endOfWord, offset) | ||
| if match then table.insert(matches, match) end | ||
| end | ||
| if vim.tbl_isempty(matches) then return nil end -- none found in this line | ||
| local nextPos = math.min(unpack(matches)) | ||
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| if backwards then nextPos = strFuncs.len(line) - nextPos + 1 end | ||
| return nextPos | ||
| end | ||
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| -------------------------------------------------------------------------------- | ||
| return M |