132 lines
2.8 KiB
Lua
132 lines
2.8 KiB
Lua
xact = function(n, f) -- just simple action!
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local v = {};
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if f == nil and type(n) == 'table' then
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f = n[2];
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n = n[1];
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end
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if type(n) ~= 'string' then
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error ("Wrong parameter to xact.", 2)
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end
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v.xaction_type = true
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v.nam = n
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v.act = f;
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v = obj(v);
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v.save = function(self, name, h, need)
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if need then
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local f = self.act;
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f = stead.tostring(f);
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if f == nil then
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error("Can not save xact: "..name);
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end
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h:write(stead.string.format("%s = xact(%q, %s);\n", name, self.nam, f))
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end
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stead.savemembers(h, self, name, false);
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end
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return v
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end
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local __do_xact = function(str, self)
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local aarg = {}
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local function parg(v)
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stead.table.insert(aarg, v);
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return ''
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end
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local xrefrep = function(str)
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local s = stead.string.gsub(str,'[\001\002]','');
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local o,d,a, oo;
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local delim = ':'
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if stead.api_version >= "1.2.2" then
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delim = stead.delim;
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end
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s = s:gsub('\\?[\\'..delim..']', { [ delim ] = '\001', [ '\\'..delim ] = delim });
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local i = s:find('\001', 1, true);
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aarg = {}
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if i then
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o = s:sub(1, i - 1);
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d = s:sub(i + 1);
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i = o:find("(", 1, true);
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if i then
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a = o:sub(i);
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o = o:sub(1, i - 1);
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a:gsub('[^,()]+', parg);
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end
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if o == '' then
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if isObject(self) then
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oo = self
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else
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error("Empty link: "..s, 3);
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end
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else
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oo = objs():srch(o)
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if not oo then
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oo = stead.ref(o, true)
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end
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end
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elseif isObject(self) then
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oo = self
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d = s;
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else
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error("Wrong link: "..s, 3);
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end
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d = d:gsub("\001", delim);
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return stead.xref(d, stead.ref(oo, true), unpack(aarg));
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end
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if type(str) ~= 'string' then return end
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local s = stead.string.gsub(str, '\\?[\\{}]',
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{ ['{'] = '\001', ['}'] = '\002' }):gsub('\001([^\002]+)\002', xrefrep):gsub('[\001\002]', { ['\001'] = '{', ['\002'] = '}' });
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return s;
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end
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stead.fmt = stead.hook(stead.fmt, function(f, ...)
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local i, res, s
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local a = {...}
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for i=1,stead.table.maxn(a) do
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if type(a[i]) == 'string' then
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s = __do_xact(a[i]);
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res = stead.par('', res, s):gsub('\\?[\\{}]', { [ '\\{' ] = '{', [ '\\}' ] = '}' });
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end
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end
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return f(res);
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end)
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obj = stead.inherit(obj, function(v)
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v.xref = function(s, str)
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return __do_xact(str, s);
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end
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return v
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end)
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function xdsc(n)
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local v = {}
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v.nam = true
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if n == nil then
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v.disp = 'xdsc'
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elseif type(n) == 'string' then
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v.disp = n;
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else
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error("Wrong parameter to xdsc.", 2);
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end
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v.dsc = function(s)
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return stead.call(here(), s.disp);
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end
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v.save = function(self, name, h, need)
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if need then
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h:write(stead.string.format("%s = xdsc(%q);\n", name, self.disp))
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end
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stead.savemembers(h, self, name, false);
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end
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return obj(v)
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end
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xroom = stead.inherit(room, function(v)
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v.look = stead.hook(v.look, function(f, s,...)
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local xdsc = stead.call(s, 'xdsc');
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return par(' ', xdsc, f(s, ...));
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end)
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return v
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end)
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-- vim:ts=4
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