text: /*
   * Copyright 2011, The Android Open Source Project
   *
   * Licensed under the Apache License, Version 2.0 (the "License");
   * you may not use this file except in compliance with the License.
   * You may obtain a copy of the License at
   *
   *     http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  
  #include "helper.h"
  #include "raw_ostream.h"
  
  #include <stdlib.h>
  #include <ctype.h>
  
  using namespace llvm;
  
  void dump_hex(unsigned char const *data,
                size_t size, size_t begin, size_t end) {
    if (end <= begin) {
      // Nothing to print now.  Return directly.
      return;
    }
  
    size_t lower = begin & (~0xfUL);
    size_t upper = (end & (~0xfUL)) ? end : ((end + 16UL) & (~0xfUL));
  
    for (size_t i = lower; i < upper; i += 16) {
      out() << format("%08x", i) << ':';
  
      if (i < begin) {
        out().changeColor(raw_ostream::MAGENTA);
      }
  
      for (size_t j = i, k = i + 16; j < k; ++j) {
        if (j == begin) {
          out().resetColor();
        }
  
        if (j == end) {
          out().changeColor(raw_ostream::MAGENTA);
        }
  
        if (j < size) {
          out() << ' ' << format("%02x", (unsigned)data[j]);
        }
      }
  
      out().resetColor();
      out() << "  ";
  
      for (size_t j = i, k = i + 16; j < k; ++j) {
        if (data[j] > 0x20 && data[j] < 0x7f) {
          out() << (char)data[j];
        } else {
          out() << '.';
        }
      }
  
      out() << '\n';
    }
  }
  