add string.padding

res/scripts/stdmin.lua

@@ -292,6 +292,27 @@ function string.trim_left(s, char)
     return string.match(s, "^" .. char .. "*(.+)$") or s
 end
 
+function string.padding(str, size, char)
+    char = char == nil and " " or char
+
+    local padding = math.floor((size - #str) / 2)
+    return string.rep(char, padding) .. str .. string.rep(char, padding)
+end
+
+function string.left_padding(str, size, char)
+    char = char == nil and " " or char
+
+    local left_padding = size - #str
+    return string.rep(char, left_padding) .. str
+end
+
+function string.right_padding(str, size, char)
+    char = char == nil and " " or char
+
+    local right_padding = size - #str
+    return str .. string.rep(char, right_padding)
+end
+
 string.lower = utf8.lower
 string.upper = utf8.upper
 string.escape = utf8.escape