1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
|
-- TODO: show current hunk in status line
-- TODO: incorporate more patchutils functionality
-- FIXME https://www.reddit.com/r/neovim/comments/unwvkw/github_hkuptyrunesnvim_lua_test_framework_for/
-- FIXME https://github.com/hkupty/runes.nvim
pretty = require("pl.pretty")
local M = {}
-- Header object
M.Header = {}
function M.Header:parse(inline, lineNo)
local pat = "@@%s+%-(%d+),(%d+)%s+%+(%d+),(%d+)%s+@@%s*(.*)"
local of, oc, nf, nc, rem = inline:match(pat)
return {
line = lineNo,
oldFirst = tonumber(of),
oldCount = tonumber(oc),
newFirst = tonumber(nf),
newCount = tonumber(nc),
remainderLine = rem
}
end
-- Generate hunk header line
-- TODO some protection against bad parameters (creating impossible regions of lines)
-- TODO return empty string in such case
function M.createHunkHeader(oldStart, oldLen, newStart, newLen, remaind)
return "@@ -" .. oldStart .. "," .. oldLen ..
" +" .. newStart .. "," .. newLen .. " @@ " .. remaind
end
-- Return number of lines in the range between start and end line (both
-- inclusive) which are from the state before patch and the one after
-- patch is applied.
function M.countLines(start, endline, getlfn)
local context_lines = 0
local old_lines = 0
local new_lines = 0
for line in pairs(getlfn(start, endline)) do
local first_char = line:sub(1, 1)
if first_char == ' ' then
local context_lines = context_lines + 1
elseif first_char == '-' then
local old_lines = old_lines + 1
elseif first_char == '+' then
local new_lines = new_lines + 1
end
end
return {context_lines + old_lines, context_lines + new_lines}
end
return M
|
