more tests

bristlecode.rb

@@ -29,7 +29,7 @@ module Bristlecode
     rule(:tag_delim) { tag_open | tag_close }
 
     rule(:text) { (tag_delim.absent? >> any).repeat(1).as(:text) }
-    rule(:children) { space? >> elem.repeat(1) }
+    rule(:children) { space? >> elem.repeat }
     rule(:doc) { space? >> elem.repeat.as(:doc) }
     root(:doc)
   end

spec/bristlecode/parser_spec.rb

@@ -10,6 +10,10 @@ module Bristlecode
         expect(parser).to parse('')
       end
 
+      it 'can parse whitespace' do
+        expect(parser).to parse('      ')
+      end
+
       it 'can parse plain text' do
         expect(parser).to parse('this is some plain text')
       end
@@ -23,6 +27,15 @@ module Bristlecode
         expect(parser.bold).to parse('[B]bolded contents here[/B]')
       end
 
+      it 'can parse an empty bold tag' do
+        expect(parser.bold).to parse('[b][/b]')
+      end
+
+      it 'can parse nested tags' do
+        expect(parser.bold).to parse('[b] one [b] two [/b] three [/b]')
+        expect(parser.bold).to parse('[b] one [i] two [/i] three [/b]')
+      end
+
       it 'can parse an unclosed tag' do
         expect(parser.bold).to parse('[b]bolded contents here')
         expect(parser.bold).to parse('[B]bolded contents here')
@@ -49,6 +62,15 @@ module Bristlecode
         expect(parser.italic).to parse('[I]italiced contents here[/I]')
       end
 
+      it 'can parse an empty italic tag' do
+        expect(parser.italic).to parse('[i][/i]')
+      end
+
+      it 'can parse nested tags' do
+        expect(parser.italic).to parse('[i] one [i] two [/i] three [/i]')
+        expect(parser.italic).to parse('[i] one [b] two [/b] three [/i]')
+      end
+
       it 'can parse an unclosed tag' do
         expect(parser.italic).to parse('[i]italiced contents here')
         expect(parser.italic).to parse('[I]italiced contents here')