libs/web: implement minlength(), maxlength() and rangelength() datatypes

diff --git a/libs/web/htdocs/luci-static/resources/cbi.js b/libs/web/htdocs/luci-static/resources/cbi.js
index 0a49a69..655ddbf 100644 (file)
--- a/libs/web/htdocs/luci-static/resources/cbi.js
+++ b/libs/web/htdocs/luci-static/resources/cbi.js
@@ -216,6 +216,33 @@ var cbi_validators = {
                return false;
        },
 
+       'rangelength': function(min, max)
+       {
+               var val = '' + this;
+               if (!isNaN(min) && !isNaN(max))
+                       return ((val.length >= min) && (val.length <= max));
+
+               return false;
+       },
+
+       'minlength': function(min)
+       {
+               var val = '' + this;
+               if (!isNaN(min))
+                       return (val.length >= min);
+
+               return false;
+       },
+
+       'maxlength': function(max)
+       {
+               var val = '' + this;
+               if (!isNaN(max))
+                       return (val.length <= max);
+
+               return false;
+       },
+
        'or': function()
        {
                for (var i = 0; i < arguments.length; i += 2)

diff --git a/libs/web/luasrc/cbi/datatypes.lua b/libs/web/luasrc/cbi/datatypes.lua
index d3077f9..4858619 100644 (file)
--- a/libs/web/luasrc/cbi/datatypes.lua
+++ b/libs/web/luasrc/cbi/datatypes.lua
@@ -17,7 +17,7 @@ local fs = require "nixio.fs"
 local ip = require "luci.ip"
 local math = require "math"
 local util = require "luci.util"
-local tonumber, type, unpack, select = tonumber, type, unpack, select
+local tonumber, tostring, type, unpack, select = tonumber, tostring, type, unpack, select
 
 
 module "luci.cbi.datatypes"
@@ -306,6 +306,40 @@ function max(val, max)
        return false
 end
 
+function rangelength(val, min, max)
+       val = tostring(val)
+       min = tonumber(min)
+       max = tonumber(max)
+
+       if val ~= nil and min ~= nil and max ~= nil then
+               return ((#val >= min) and (#val <= max))
+       end
+
+       return false
+end
+
+function minlength(val, min)
+       val = tostring(val)
+       min = tonumber(min)
+
+       if val ~= nil and min ~= nil then
+               return (#val >= min)
+       end
+
+       return false
+end
+
+function maxlength(val, max)
+       val = tostring(val)
+       max = tonumber(max)
+
+       if val ~= nil and max ~= nil then
+               return (#val <= max)
+       end
+
+       return false
+end
+
 function phonedigit(val)
        return (val:match("^[0-9\*#]+$") ~= nil)
 end