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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 col = utf8.offset(text, position.character, start)
local offset = guide.offsetOf(lines, row, col)
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, 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
return m
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