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feat: add preview functionality to user commands

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Adds a Lua-only `preview` flag to user commands which allows the command to be incrementally previewed like `:substitute` when 'inccommand' is set.
This commit is contained in:
Famiu Haque
2022-04-20 17:02:18 +06:00
parent e9803e1de6
commit 46536f53e8
25 changed files with 960 additions and 346 deletions
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13
src/nvim/generators/gen_ex_cmds.lua
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@@ -65,20 +65,31 @@ for _, cmd in ipairs(defs) do
assert(cmd.addr_type ~= 'ADDR_OTHER' and cmd.addr_type ~= 'ADDR_NONE',
string.format('ex_cmds.lua:%s: Missing misplaced DFLALL\n', cmd.command))
end
if bit.band(cmd.flags, flags.PREVIEW) == flags.PREVIEW then
assert(cmd.preview_func ~= nil,
string.format('ex_cmds.lua:%s: Missing preview_func\n', cmd.command))
end
local enumname = cmd.enum or ('CMD_' .. cmd.command)
local byte_cmd = cmd.command:sub(1, 1):byte()
if byte_a <= byte_cmd and byte_cmd <= byte_z then
table.insert(cmds, cmd.command)
end
local preview_func
if cmd.preview_func then
preview_func = string.format("(ex_preview_func_T)&%s", cmd.preview_func)
else
preview_func = "NULL"
end
enumfile:write(' ' .. enumname .. ',\n')
defsfile:write(string.format([[
[%s] = {
.cmd_name = "%s",
.cmd_func = (ex_func_T)&%s,
.cmd_preview_func = %s,
.cmd_argt = %uL,
.cmd_addr_type = %s
},
]], enumname, cmd.command, cmd.func, cmd.flags, cmd.addr_type))
]], enumname, cmd.command, cmd.func, preview_func, cmd.flags, cmd.addr_type))
end
for i = #cmds, 1, -1 do
local cmd = cmds[i]