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-- Copyright 2007-2015 Mitchell mitchell.att.foicica.com. See LICENSE.
local M = {}
--[[ This comment is for LuaDoc.
---
-- The ansi_c module.
-- It provides utilities for editing C code.
--
-- ## Key Bindings
--
-- + `Shift+Enter` (`⇧↩` | `S-Enter`)
-- Add ';' to the end of the current line and insert a newline.
module('_M.ansi_c')]]
-- Autocompletion and documentation.
---
-- List of ctags files to use for autocompletion in addition to the current
-- project's top-level *tags* file or the current directory's *tags* file.
-- @class table
-- @name tags
M.tags = {_HOME..'/modules/ansi_c/tags', _USERHOME..'/modules/ansi_c/tags'}
local XPM = textadept.editing.XPM_IMAGES
local xpms = setmetatable({
c = XPM.CLASS, d = XPM.SLOT, e = XPM.VARIABLE, f = XPM.METHOD,
g = XPM.TYPEDEF, m = XPM.VARIABLE, s = XPM.STRUCT, t = XPM.TYPEDEF,
v = XPM.VARIABLE
}, {__index = function() return 0 end})
textadept.editing.autocompleters.ansi_c = function()
local list = {}
-- Retrieve the symbol behind the caret.
local line, pos = buffer:get_cur_line()
local symbol, op, part = line:sub(1, pos):match('([%w_]-)([%.%->]*)([%w_]*)$')
if symbol == '' and part == '' and op ~= '' then return nil end -- lone ., ->
if op ~= '' and op ~= '.' and op ~= '->' then return nil end
-- Attempt to identify the symbol type.
if symbol ~= '' then
local buffer = buffer
local decl = '([%w_]+)[%s%*&]+'..symbol:gsub('(%p)', '%%%1')..'[^%w_]'
for i = buffer:line_from_position(buffer.current_pos) - 1, 0, -1 do
local class = buffer:get_line(i):match(decl)
if class then symbol = class break end
end
end
-- Search through ctags for completions for that symbol.
local tags_files = {}
for i = 1, #M.tags do tags_files[#tags_files + 1] = M.tags[i] end
tags_files[#tags_files + 1] = (io.get_project_root(buffer.filename) or
lfs.currentdir())..'/tags'
local name_patt = '^'..part
local sep = string.char(buffer.auto_c_type_separator)
for i = 1, #tags_files do
if lfs.attributes(tags_files[i]) then
for tag_line in io.lines(tags_files[i]) do
local name = tag_line:match('^%S+')
if name:find(name_patt) and not name:find('^!') and not list[name] then
local fields = tag_line:match(';"\t(.*)$')
if (fields:match('class:(%S+)') or fields:match('enum:(%S+)') or
fields:match('struct:(%S+)') or fields:match('typedef:(%S+)') or
'') == symbol then
list[#list + 1] = ("%s%s%d"):format(name, sep,
xpms[fields:sub(1, 1)])
list[name] = true
end
end
end
end
end
return #part, list
end
textadept.editing.api_files.ansi_c = {
_HOME..'/modules/ansi_c/api', _HOME..'/modules/ansi_c/lua_api',
_USERHOME..'/modules/ansi_c/api'
}
-- Commands.
---
-- Table of C-specific key bindings.
-- @class table
-- @name _G.keys.ansi_c
keys.ansi_c = {
['s\n'] = function()
buffer:line_end()
buffer:add_text(';')
buffer:new_line()
end,
}
-- Snippets.
---
-- Table of C-specific snippets.
-- @class table
-- @name _G.snippets.ansi_c
if type(snippets) == 'table' then
snippets.ansi_c = {
-- Lua snippets
lc = 'lua_call(%1(L), %2(nargs), %3(nresults))',
lcs = 'lua_checkstack(%1(L), %2(1))',
lf = 'static int %1(func)(lua_State *%2(L)) {\n\t%0\n\treturn %3(0);\n}',
lgf = 'lua_getfield(%1(L), %2(-1), %3(field))',
lgg = 'lua_getglobal(%1(L), %2(global))',
lgmt = 'lua_getmetatable(%1(L), %2(-1))',
lgt = 'lua_gettable(%1(L), %2(-2))',
ltop = 'lua_gettop(%1(L))',
lib = 'lua_isboolean(%1(L), %2(-1))',
licf = 'lua_iscfunction(%1(L), %2(-1))',
lif = 'lua_isfunction(%1(L), %2(-1))',
lilu = 'lua_islightuserdata(%1(L), %2(-1))',
linil = 'lua_isnil(%1(L), %2(-1))',
linone = 'lua_isnone(%1(L), %2(-1))',
linonen = 'lua_isnoneornil(%1(L), %2(-1))',
lin = 'lua_isnumber(%1(L), %2(-1))',
lis = 'lua_isstring(%1(L), %2(-1))',
lit = 'lua_istable(%1(L), %2(-1))',
liu = 'lua_isuserdata(%1(L), %2(-1))',
llen = 'lua_len(%1(L), %2(-1))',
lrlen = 'lua_rawlen(%1(L), %2(-1))',
lnt = 'lua_newtable(%1(L))',
lnu = '(%3 *)lua_newuserdata(%1(L), %2(sizeof(%3(struct))))',
ln = 'lua_next(%1(L), %2(-2))',
lpc = 'lua_pcall(%1(L), %2(nargs), %3(nresults), %4(msgh))',
lpop = 'lua_pop(%1(L), %2(1))',
lpb = 'lua_pushboolean(%1(L), %2(bool))',
lpcc = 'lua_pushcclosure(%1(L), %2(cfunc), %3(nvalues))',
lpcf = 'lua_pushcfunction(%1(L), %2(cfunc))',
lpi = 'lua_pushinteger(%1(L), %2(integer))',
lplu = 'lua_pushlightuserdata(%1(L), %2(pointer))',
lpnil = 'lua_pushnil(%1(L))',
lpn = 'lua_pushnumber(%1(L), %2(number))',
lps = 'lua_pushstring(%1(L), %2(string))',
lpls = 'lua_pushlstring(%1(L), %2(string), %3(len))',
lpv = 'lua_pushvalue(%1(L), %2(-1))',
lrg = 'lua_rawget(%1(L), %2(-2))',
lrgi = 'lua_rawgeti(%1(L), %2(-2), %3(1))',
lrs = 'lua_rawset(%1(L), %2(-3))',
lrsi = 'lua_rawseti(%1(L), %2(-2), %3(1))',
lr = 'lua_register(%1(L), %2(name), %3(cfunc))',
lsf = 'lua_setfield(%1(L), %2(-2), %3(field))',
lsg = 'lua_setglobal(%1(L), %2(global))',
lsmt = 'lua_setmetatable(%1(L), %2(-2))',
lst = 'lua_settable(%1(L), %2(-3))',
ltb = 'lua_toboolean(%1(L), %2(-1))',
lti = 'lua_tointeger(%1(L), %2(-1))',
ltn = 'lua_tonumber(%1(L), %2(-1))',
ltls = 'lua_tolstring(%1(L), %2(-1), &%3(int))',
lts = 'lua_tostring(%1(L), %2(-1))',
ltu = '(%3 *)lua_touserdata(%1(L), %2(-1))',
lt = 'lua_type(%1(L), %2(-1))',
llac = 'luaL_argcheck(%1(L), %2(expr), %3(1), %4(extramsg))',
llci = 'luaL_checkinteger(%1(L), %2(1))',
llcl = 'luaL_checklong(%1(L), %2(1))',
llcls = 'luaL_checklstring(%1(L), %2(1), &%3(int))',
llcn = 'luaL_checknumber(%1(L), %2(1))',
llcs = 'luaL_checkstring(%1(L), %2(1))',
llcu = '(%4 *)luaL_checkudata(%1(L), %2(1), %3(mt_name))',
llerr = 'luaL_error(%1(L), %2(message)%3(, %4(arg)))',
llgmt = 'luaL_getmetatable(%1(L), %2(mt_name))',
llnmt = 'luaL_newmetatable(%1(L), %2(mt_name))',
lloi = 'luaL_optinteger(%1(L), %2(1), %3(default))',
llol = 'luaL_optlong(%1(L), %2(1), %3(default))',
llon = 'luaL_optnumber(%1(L), %2(1), %3(default))',
llos = 'luaL_optstring(%1(L), %2(1), %3(default))',
llref = 'luaL_ref(%1(L), %2(LUA_REGISTRYINDEX))',
llsmt = 'luaL_setmetatable(%1(L), %2(mt_name))',
lluref = 'luaL_unref(%1(L), %2(LUA_REGISTRYINDEX), %3(ref))',
}
end
return M
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