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			72 lines
		
	
	
		
			2.5 KiB
		
	
	
	
		
			Lua
		
	
	
	
	
	
			
		
		
	
	
			72 lines
		
	
	
		
			2.5 KiB
		
	
	
	
		
			Lua
		
	
	
	
	
	
---@meta
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--- Optional parameters:
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--- @class vim.diff.Opts
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--- @inlinedoc
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---
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--- Invoked for each hunk in the diff. Return a negative number
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--- to cancel the callback for any remaining hunks.
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--- Arguments:
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---   - `start_a` (`integer`): Start line of hunk in {a}.
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---   - `count_a` (`integer`): Hunk size in {a}.
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---   - `start_b` (`integer`): Start line of hunk in {b}.
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---   - `count_b` (`integer`): Hunk size in {b}.
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--- @field on_hunk? fun(start_a: integer, count_a: integer, start_b: integer, count_b: integer): integer?
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---
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--- Form of the returned diff:
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---   - `unified`: String in unified format.
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---   - `indices`: Array of hunk locations.
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--- Note: This option is ignored if `on_hunk` is used.
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--- (default: `'unified'`)
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--- @field result_type? 'unified'|'indices'
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---
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--- Run linematch on the resulting hunks from xdiff. When integer, only hunks
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--- upto this size in lines are run through linematch.
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--- Requires `result_type = indices`, ignored otherwise.
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--- @field linematch? boolean|integer
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---
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--- Diff algorithm to use. Values:
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---   - `myers`: the default algorithm
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---   - `minimal`: spend extra time to generate the smallest possible diff
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---   - `patience`: patience diff algorithm
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---   - `histogram`: histogram diff algorithm
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--- (default: `'myers'`)
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--- @field algorithm? 'myers'|'minimal'|'patience'|'histogram'
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--- @field ctxlen? integer Context length
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--- @field interhunkctxlen? integer Inter hunk context length
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--- @field ignore_whitespace? boolean Ignore whitespace
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--- @field ignore_whitespace_change? boolean Ignore whitespace change
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--- @field ignore_whitespace_change_at_eol? boolean Ignore whitespace change at end-of-line.
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--- @field ignore_cr_at_eol? boolean Ignore carriage return at end-of-line
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--- @field ignore_blank_lines? boolean Ignore blank lines
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--- @field indent_heuristic? boolean Use the indent heuristic for the internal diff library.
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-- luacheck: no unused args
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--- Run diff on strings {a} and {b}. Any indices returned by this function,
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--- either directly or via callback arguments, are 1-based.
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---
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--- Examples:
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---
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--- ```lua
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--- vim.diff('a\n', 'b\nc\n')
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--- -- =>
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--- -- @@ -1 +1,2 @@
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--- -- -a
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--- -- +b
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--- -- +c
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---
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--- vim.diff('a\n', 'b\nc\n', {result_type = 'indices'})
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--- -- =>
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--- -- {
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--- --   {1, 1, 1, 2}
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--- -- }
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--- ```
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---
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---@param a string First string to compare
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---@param b string Second string to compare
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---@param opts? vim.diff.Opts
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---@return string|integer[][]?
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---     See {opts.result_type}. `nil` if {opts.on_hunk} is given.
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function vim.diff(a, b, opts) end
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