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local nvimsrcdir = arg[1]
local includedir = arg[2]
local autodir = arg[3]
if nvimsrcdir == '--help' then
print ([[
Usage:
lua genex_cmds.lua src/nvim build/include build/src/nvim/auto
Will generate files build/include/ex_cmds_enum.generated.h with cmdidx_T
enum and build/src/nvim/auto/ex_cmds_defs.generated.h with main Ex commands
definitions.
]])
os.exit(0)
end
package.path = nvimsrcdir .. '/?.lua;' .. package.path
local enumfname = includedir .. '/ex_cmds_enum.generated.h'
local defsfname = autodir .. '/ex_cmds_defs.generated.h'
local enumfile = io.open(enumfname, 'w')
local defsfile = io.open(defsfname, 'w')
local bit = require 'bit'
local ex_cmds = require('ex_cmds')
local defs = ex_cmds.cmds
local flags = ex_cmds.flags
local byte_a = string.byte('a')
local byte_z = string.byte('z')
local a_to_z = byte_z - byte_a + 1
-- Table giving the index of the first command in cmdnames[] to lookup
-- based on the first letter of a command.
local cmdidxs1_out = string.format([[
static const uint16_t cmdidxs1[%u] = {
]], a_to_z)
-- Table giving the index of the first command in cmdnames[] to lookup
-- based on the first 2 letters of a command.
-- Values in cmdidxs2[c1][c2] are relative to cmdidxs1[c1] so that they
-- fit in a byte.
local cmdidxs2_out = string.format([[
static const char_u cmdidxs2[%u][%u] = {
/* a b c d e f g h i j k l m n o p q r s t u v w x y z */
]], a_to_z, a_to_z)
enumfile:write([[
typedef enum CMD_index {
]])
defsfile:write(string.format([[
static const int command_count = %u;
static CommandDefinition cmdnames[%u] = {
]], #defs, #defs))
local cmds, cmdidxs1, cmdidxs2 = {}, {}, {}
for _, cmd in ipairs(defs) do
if bit.band(cmd.flags, flags.RANGE) == flags.RANGE then
assert(cmd.addr_type ~= 'ADDR_NONE',
string.format('ex_cmds.lua:%s: Using RANGE with ADDR_NONE\n', cmd.command))
else
assert(cmd.addr_type == 'ADDR_NONE',
string.format('ex_cmds.lua:%s: Missing ADDR_NONE\n', cmd.command))
end
if bit.band(cmd.flags, flags.DFLALL) == flags.DFLALL then
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
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
enumfile:write(' ' .. enumname .. ',\n')
defsfile:write(string.format([[
[%s] = {
.cmd_name = (char_u *) "%s",
.cmd_func = (ex_func_T)&%s,
.cmd_argt = %uL,
.cmd_addr_type = %s
},
]], enumname, cmd.command, cmd.func, cmd.flags, cmd.addr_type))
end
for i = #cmds, 1, -1 do
local cmd = cmds[i]
-- First and second characters of the command
local c1 = cmd:sub(1, 1)
cmdidxs1[c1] = i - 1
if cmd:len() >= 2 then
local c2 = cmd:sub(2, 2)
local byte_c2 = string.byte(c2)
if byte_a <= byte_c2 and byte_c2 <= byte_z then
if not cmdidxs2[c1] then
cmdidxs2[c1] = {}
end
cmdidxs2[c1][c2] = i - 1
end
end
end
for i = byte_a, byte_z do
local c1 = string.char(i)
cmdidxs1_out = cmdidxs1_out .. ' /* ' .. c1 .. ' */ ' .. cmdidxs1[c1] .. ',\n'
cmdidxs2_out = cmdidxs2_out .. ' /* ' .. c1 .. ' */ {'
for j = byte_a, byte_z do
local c2 = string.char(j)
cmdidxs2_out = cmdidxs2_out ..
((cmdidxs2[c1] and cmdidxs2[c1][c2])
and string.format('%3d', cmdidxs2[c1][c2] - cmdidxs1[c1])
or ' 0') .. ','
end
cmdidxs2_out = cmdidxs2_out .. ' },\n'
end
enumfile:write([[
CMD_SIZE,
CMD_USER = -1,
CMD_USER_BUF = -2
} cmdidx_T;
]])
defsfile:write(string.format([[
};
%s};
%s};
]], cmdidxs1_out, cmdidxs2_out))
|
