org.robolectric.res.android.ResStringPoolHeader Maven / Gradle / Ivy

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package org.robolectric.res.android;

import org.robolectric.res.android.ResourceTypes.ResChunk_header;

/**
 * Definition for a pool of strings. The data of this chunk is an array of uint32_t providing
 * indices into the pool, relative to stringsStart. At stringsStart are all of the UTF-16 strings
 * concatenated together; each starts with a uint16_t of the string's length and each ends with a
 * 0x0000 terminator. If a string is > 32767 characters, the high bit of the length is set meaning
 * to take those 15 bits as a high word and it will be followed by another uint16_t containing the
 * low word.
 *
 * If styleCount is not zero, then immediately following the array of uint32_t indices into the
 * string table is another array of indices into a style table starting at stylesStart. Each entry
 * in the style table is an array of ResStringPool_span structures.
 */
// transliterated from
// https://android.googlesource.com/platform/frameworks/base/+/android-9.0.0_r12/include/androidfw/ResourceTypes.h#434
public class ResStringPoolHeader {
  public static final int SIZEOF = ResChunk_header.SIZEOF + 20;

  ResChunk_header header;
  // Number of strings in this pool (number of uint32_t indices that follow
  // in the data).
  int stringCount;
  // Number of style span arrays in the pool (number of uint32_t indices
  // follow the string indices).
  int styleCount;

  // Flags.

  // If set, the string index is sorted by the string values (based
  // on strcmp16()).
  public static final int SORTED_FLAG = 1 << 0;
  // String pool is encoded in UTF-8
  public static final int UTF8_FLAG = 1 << 8;
  int flags;

  // Index from header of the string data.
  int stringsStart;
  // Index from header of the style data.
  int stylesStart;
}