diff options
Diffstat (limited to 'builtin/misc_helpers.lua')
| -rw-r--r-- | builtin/misc_helpers.lua | 36 |
1 files changed, 34 insertions, 2 deletions
diff --git a/builtin/misc_helpers.lua b/builtin/misc_helpers.lua index 41d0e7c2f..3a325e0d3 100644 --- a/builtin/misc_helpers.lua +++ b/builtin/misc_helpers.lua @@ -86,14 +86,23 @@ function string:split(sep) end -------------------------------------------------------------------------------- +function file_exists(filename) + local f = io.open(filename, "r") + if f==nil then + return false + else + f:close() + return true + end +end + +-------------------------------------------------------------------------------- function string:trim() return (self:gsub("^%s*(.-)%s*$", "%1")) end assert(string.trim("\n \t\tfoo bar\t ") == "foo bar") - - -------------------------------------------------------------------------------- function math.hypot(x, y) local t @@ -209,6 +218,29 @@ if engine ~= nil then return nil end + + function fgettext(text, ...) + text = engine.gettext(text) + local arg = {n=select('#', ...), ...} + if arg.n >= 1 then + -- Insert positional parameters ($1, $2, ...) + result = '' + pos = 1 + while pos <= text:len() do + newpos = text:find('[$]', pos) + if newpos == nil then + result = result .. text:sub(pos) + pos = text:len() + 1 + else + paramindex = tonumber(text:sub(newpos+1, newpos+1)) + result = result .. text:sub(pos, newpos-1) .. tostring(arg[paramindex]) + pos = newpos + 2 + end + end + text = result + end + return engine.formspec_escape(text) + end end -------------------------------------------------------------------------------- -- core only fct |