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local guide = require 'parser.guide'
local m = {}
--- 获取 position 对应的光标位置
---@param lines table
---@param text string
---@param position position
---@return integer
function m.offset(lines, text, position)
local row = position.line
local start = guide.lineRange(lines, row)
local offset = utf8.offset(text, position.character + 1, start)
return offset
end
--- 将光标位置转化为 position
---@alias position table
---@param lines table
---@param text string
---@param offset integer
---@return position
function m.position(lines, text, offset)
local row, col = guide.positionOf(lines, offset)
local start = guide.lineRange(lines, row)
local ucol = utf8.len(text, start + 1, start + col, true)
return {
line = row,
character = ucol,
}
end
--- 将2个光标位置转化为 range
---@alias range table
---@param lines table
---@param text string
---@param offset1 integer
---@param offset2 integer
function m.range(lines, text, offset1, offset2)
return {
start = m.position(lines, text, offset1),
['end'] = m.position(lines, text, offset2),
}
end
---@alias location table
---@param uri string
---@param range range
---@return location
function m.location(uri, range)
return {
uri = uri,
range = range,
}
end
---@alias locationLink table
---@param uri string
---@param range range
---@param selection range
---@param origin range
function m.locationLink(uri, range, selection, origin)
return {
targetUri = uri,
targetRange = range,
targetSelectionRange = selection,
originSelectionRange = origin,
}
end
return m
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