1 files changed, 60 insertions, 0 deletions
diff --git a/lib/querypath/src/QueryPath/CSS/Token.php b/lib/querypath/src/QueryPath/CSS/Token.php
new file mode 100644
index 0000000..3c31ef4
--- /dev/null
+++ b/lib/querypath/src/QueryPath/CSS/Token.php
@@ -0,0 +1,60 @@
+<?php
+/** @file
+ * Parser tokens.
+ */
+namespace QueryPath\CSS;
+/**
+ * Tokens for CSS.
+ * This class defines the recognized tokens for the parser, and also
+ * provides utility functions for error reporting.
+ *
+ * @ingroup querypath_css
+ */
+final class Token {
+  const char = 0;
+  const star = 1;
+  const rangle = 2;
+  const dot = 3;
+  const octo = 4;
+  const rsquare = 5;
+  const lsquare = 6;
+  const colon = 7;
+  const rparen = 8;
+  const lparen = 9;
+  const plus = 10;
+  const tilde = 11;
+  const eq = 12;
+  const pipe = 13;
+  const comma = 14;
+  const white = 15;
+  const quote = 16;
+  const squote = 17;
+  const bslash = 18;
+  const carat = 19;
+  const dollar = 20;
+  const at = 21; // This is not in the spec. Apparently, old broken CSS uses it.
+
+  // In legal range for string.
+  const stringLegal = 99;
+
+  /**
+   * Get a name for a given constant. Used for error handling.
+   */
+  static function name($const_int) {
+    $a = array('character', 'star', 'right angle bracket',
+      'dot', 'octothorp', 'right square bracket', 'left square bracket',
+      'colon', 'right parenthesis', 'left parenthesis', 'plus', 'tilde',
+      'equals', 'vertical bar', 'comma', 'space', 'quote', 'single quote',
+      'backslash', 'carat', 'dollar', 'at');
+    if (isset($a[$const_int]) && is_numeric($const_int)) {
+      return $a[$const_int];
+    }
+    elseif ($const_int == 99) {
+      return 'a legal non-alphanumeric character';
+    }
+    elseif ($const_int == FALSE) {
+      return 'end of file';
+    }
+    return sprintf('illegal character (%s)', $const_int);
+  }
+}