Merge pull request #24 from caseycrites/string_comparisons

Compare strings with >, >=, < and <=

Author: lloyd

src/jsonselect.js

@@ -161,13 +161,13 @@
         '%':  [ 9, function(lhs, rhs) { return lhs % rhs; } ],
         '+':  [ 7, function(lhs, rhs) { return lhs + rhs; } ],
         '-':  [ 7, function(lhs, rhs) { return lhs - rhs; } ],
-        '<=': [ 5, function(lhs, rhs) { return is(lhs, 'number') && is(rhs, 'number') && lhs <= rhs; } ],
-        '>=': [ 5, function(lhs, rhs) { return is(lhs, 'number') && is(rhs, 'number') && lhs >= rhs; } ],
+        '<=': [ 5, function(lhs, rhs) { return is(lhs, 'number') && is(rhs, 'number') && lhs <= rhs || is(lhs, 'string') && is(rhs, 'string') && lhs <= rhs; } ],
+        '>=': [ 5, function(lhs, rhs) { return is(lhs, 'number') && is(rhs, 'number') && lhs >= rhs || is(lhs, 'string') && is(rhs, 'string') && lhs >= rhs; } ],
         '$=': [ 5, function(lhs, rhs) { return is(lhs, 'string') && is(rhs, 'string') && lhs.lastIndexOf(rhs) === lhs.length - rhs.length; } ],
         '^=': [ 5, function(lhs, rhs) { return is(lhs, 'string') && is(rhs, 'string') && lhs.indexOf(rhs) === 0; } ],
         '*=': [ 5, function(lhs, rhs) { return is(lhs, 'string') && is(rhs, 'string') && lhs.indexOf(rhs) !== -1; } ],
-        '>':  [ 5, function(lhs, rhs) { return is(lhs, 'number') && is(rhs, 'number') && lhs > rhs; } ],
-        '<':  [ 5, function(lhs, rhs) { return is(lhs, 'number') && is(rhs, 'number') && lhs < rhs; } ],
+        '>':  [ 5, function(lhs, rhs) { return is(lhs, 'number') && is(rhs, 'number') && lhs > rhs || is(lhs, 'string') && is(rhs, 'string') && lhs > rhs; } ],
+        '<':  [ 5, function(lhs, rhs) { return is(lhs, 'number') && is(rhs, 'number') && lhs < rhs || is(lhs, 'string') && is(rhs, 'string') && lhs < rhs; } ],
         '=':  [ 3, function(lhs, rhs) { return lhs === rhs; } ],
         '!=': [ 3, function(lhs, rhs) { return lhs !== rhs; } ],
         '&&': [ 2, function(lhs, rhs) { return lhs && rhs; } ],