supper bare strings, break variables

this is a HUGE change to the syntax, but I'm really excited about it!
It was @avleen that convinced me this was worth looking into.

lib/lex.go

@@ -224,7 +224,7 @@ func lexRoot(l *lexer) stateFn {
 		return lexRoot
 	case unicode.IsLower(r), unicode.IsUpper(r):
 		l.keep(r)
-		return lexName
+		return lexNameOrString
 	default:
 		return lexErrorf("unexpected rune in lexRoot: %c", r)
 	}
@@ -238,7 +238,7 @@ func lexAfterPeriod(l *lexer) stateFn {
 		return lexNumber
 	case unicode.IsLower(r):
 		l.keep(r)
-		return lexName
+		return lexNameOrString
 	default:
 		return lexErrorf("unexpected rune after period: %c", r)
 	}
@@ -281,19 +281,29 @@ func lexQuotedString(delim rune) stateFn {
 	}
 }
 
-func lexName(l *lexer) stateFn {
+func lexNameOrString(l *lexer) stateFn {
 	r := l.next()
 	switch {
-	case unicode.IsLetter(r), unicode.IsDigit(r), r == '_':
-		l.keep(r)
-		return lexName
-	case r == eof:
-		l.emit(t_name)
-		return nil
-	default:
+	case r == '\n', r == ';':
+		l.emit(t_string)
+		return lexRoot
+	case r == ':':
 		l.emit(t_name)
-		l.unread(r)
+		l.keep(r)
+		l.emit(t_object_separator)
 		return lexRoot
+	case r == '\\':
+		rr := l.next()
+		if rr == eof {
+			return lexErrorf("unexpected eof in string or name")
+		}
+		l.keep(rr)
+		return lexNameOrString
+	case r == '#':
+		return lexComment
+	default:
+		l.keep(r)
+		return lexNameOrString
 	}
 }
 

lib/tests/lex/05.in

@@ -1,8 +1,10 @@
 
-errant_name
+this whole line is one string value, y'all!
 
 no_value:
 
-key: var_name
+key: a bare string is here
 
 key: "string"
+
+one: the first string; two: the second string

lib/tests/lex/05.out

@@ -1,9 +1,15 @@
-{t_name errant_name}
+{t_string this whole line is one string value, y'all!}
 {t_name no_value}
 {t_object_separator :}
 {t_name key}
 {t_object_separator :}
-{t_name var_name}
+{t_string a bare string is here}
 {t_name key}
 {t_object_separator :}
 {t_string string}
+{t_name one}
+{t_object_separator :}
+{t_string the first string}
+{t_name two}
+{t_object_separator :}
+{t_string the second string}

lib/tests/lex/07.in

@@ -1,8 +1,8 @@
 empty_object: {}
 
 crazy_object: {
-    key: variable
-    key_two: "string here"
+    key: bare string here
+    key_two: "quoted string here"
     key_three: [1 2 3]
     key_four: {
         nested_one: "alright"

lib/tests/lex/07.out

@@ -7,10 +7,10 @@
 {t_object_start {}
 {t_name key}
 {t_object_separator :}
-{t_name variable}
+{t_string bare string here}
 {t_name key_two}
 {t_object_separator :}
-{t_string string here}
+{t_string quoted string here}
 {t_name key_three}
 {t_object_separator :}
 {t_list_start [}

lib/tests/parse/05.in

@@ -1,2 +1,7 @@
-an_item: "this is the value of the item"
-a_variable: an_item
+# this was original a variable test case, but I'm changing it to be a bare
+# string / quoted string test.  The variable test will come after; variables
+# are broken right now.
+
+quoted_string: "this is a quoted string"
+bare_string: this is a bare string
+name with space: that name has spaces in it, and you know what? that's ok!

lib/tests/parse/05.out

@@ -1,13 +1,19 @@
 root:
   assign:
     name:
-      an_item
+      quoted_string
     value:
       string:
-        this is the value of the item
+        this is a quoted string
   assign:
     name:
-      a_variable
+      bare_string
     value:
-      variable:
-        an_item
+      string:
+        this is a bare string
+  assign:
+    name:
+      name with space
+    value:
+      string:
+        that name has spaces in it, and you know what? that's ok!