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util.interpolation: Add support for filter functions

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This commit is contained in:
Kim Alvefur 2015-08-07 13:31:12 +02:00
parent 97ed1aed6c
commit 564d3bc49b
1 changed files with 9 additions and 1 deletions
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10
util/interpolation.lua
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@ -24,7 +24,7 @@ local pairs, ipairs = pairs, ipairs;
local s_sub, s_gsub, s_match = string.sub, string.gsub, string.match;
local t_concat = table.concat;
local function new_render(pat, escape)
local function new_render(pat, escape, funcs)
-- assert(type(pat) == "string", "bad argument #1 to 'new_render' (string expected)");
-- assert(type(escape) == "function", "bad argument #2 to 'new_render' (function expected)");
local function render(template, values)
@ -42,6 +42,14 @@ local function new_render(pat, escape)
if not value then break; end
end
end
if funcs then
while value ~= nil and opt == '|' do
local f;
f, opt, e = s_match(block, "^([%a_][%w_.]*)(%p?)()", e);
f = funcs[f];
if f then value = f(value); end
end
end
if opt == '#' or opt == '%' then
if type(value) ~= "table" then return ""; end
local iter = opt == '#' and ipairs or pairs;