src/jdk.compiler/share/classes/com/sun/tools/javac/parser/UnicodeReader.java

rev 51519 : 8206981: Compiler support for Raw String Literals
Reviewed-by: mcimadamore

*** 62,71 ****
--- 62,75 ----
  
      /** The buffer index of the last converted unicode character
       */
      protected int unicodeConversionBp = -1;
  
+     /** Control conversion of unicode characters
+      */
+     protected boolean unicodeConversion = true;
+ 
      protected Log log;
      protected Names names;
  
      /** A character buffer for saved chars.
       */
*** 152,166 ****
  
      String chars() {
          return new String(sbuf, 0, sp);
      }
  
      /** Convert unicode escape; bp points to initial '\' character
       *  (Spec 3.3).
       */
      protected void convertUnicode() {
!         if (ch == '\\' && unicodeConversionBp != bp) {
              bp++; ch = buf[bp];
              if (ch == 'u') {
                  do {
                      bp++; ch = buf[bp];
                  } while (ch == 'u');
--- 156,176 ----
  
      String chars() {
          return new String(sbuf, 0, sp);
      }
  
+     protected boolean setUnicodeConversion(boolean newState) {
+         boolean oldState = unicodeConversion;
+         unicodeConversion = newState;
+         return oldState;
+     }
+ 
      /** Convert unicode escape; bp points to initial '\' character
       *  (Spec 3.3).
       */
      protected void convertUnicode() {
!         if (ch == '\\' && unicodeConversion && unicodeConversionBp != bp ) {
              bp++; ch = buf[bp];
              if (ch == 'u') {
                  do {
                      bp++; ch = buf[bp];
                  } while (ch == 'u');
*** 252,261 ****
--- 262,289 ----
  
      protected char peekChar() {
          return buf[bp + 1];
      }
  
+     protected char peekBack() {
+         return buf[bp];
+     }
+ 
+     /**
+      * Skips consecutive occurrences of the current character, leaving bp positioned
+      * at the last occurrence. Returns the occurrence count.
+      */
+     protected int skipRepeats() {
+         int start = bp;
+         while (bp < buflen) {
+             if (buf[bp] != buf[bp + 1])
+                 break;
+             bp++;
+         }
+         return bp - start;
+     }
+ 
      /**
       * Returns a copy of the input buffer, up to its inputLength.
       * Unicode escape sequences are not translated.
       */
      public char[] getRawCharacters() {