Examples of com.google.common.escape.UnicodeEscaper.escape()

Class com.google.common.escape.UnicodeEscaper

Examples of com.google.common.escape.UnicodeEscaper.escape()

com.google.common.escape.UnicodeEscaper.escape()
Returns the escaped form of the given Unicode code point, or {@code null}if this code point does not need to be escaped. When called as part of an escaping operation, the given code point is guaranteed to be in the range {@code 0 <= cp <= Character#MAX_CODE_POINT}.
If an empty array is returned, this effectively strips the input character from the resulting text.
If the character does not need to be escaped, this method should return {@code null}, rather than an array containing the character representation of the code point. This enables the escaping algorithm to perform more efficiently.
If the implementation of this method cannot correctly handle a particular code point then it should either throw an appropriate runtime exception or return a suitable replacement character. It must never silently discard invalid input as this may constitute a security risk. @param cp the Unicode code point to escape if necessary @return the replacement characters, or {@code null} if no escaping wasneeded


    // Plus for spaces
    assertEscaping(e, "+", ' ');
    assertEscaping(e, "%2B", '+');


    assertEquals("safe+with+spaces", e.escape("safe with spaces"));
    assertEquals("foo%40bar.com", e.escape("foo@bar.com"));
  }


  public void testUrlPathSegmentEscaper() {
    UnicodeEscaper e = (UnicodeEscaper) urlPathSegmentEscaper();

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    // Plus for spaces
    assertEscaping(e, "+", ' ');
    assertEscaping(e, "%2B", '+');


    assertEquals("safe+with+spaces", e.escape("safe with spaces"));
    assertEquals("foo%40bar.com", e.escape("foo@bar.com"));
  }


  public void testUrlPathSegmentEscaper() {
    UnicodeEscaper e = (UnicodeEscaper) urlPathSegmentEscaper();
    assertPathEscaper(e);

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    assertEscaping(e, "%EF%BF%BF", '\uffff'); // xxx-1111,x-111111,x-11,1111
    assertUnicodeEscaping(e, "%F0%90%80%80", '\uD800', '\uDC00');
    assertUnicodeEscaping(e, "%F4%8F%BF%BF", '\uDBFF', '\uDFFF');


    // simple string tests
    assertEquals("", e.escape(""));
    assertEquals("safestring", e.escape("safestring"));
    assertEquals("embedded%00null", e.escape("embedded\0null"));
    assertEquals("max%EF%BF%BFchar", e.escape("max\uffffchar"));
  }

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    assertUnicodeEscaping(e, "%F0%90%80%80", '\uD800', '\uDC00');
    assertUnicodeEscaping(e, "%F4%8F%BF%BF", '\uDBFF', '\uDFFF');


    // simple string tests
    assertEquals("", e.escape(""));
    assertEquals("safestring", e.escape("safestring"));
    assertEquals("embedded%00null", e.escape("embedded\0null"));
    assertEquals("max%EF%BF%BFchar", e.escape("max\uffffchar"));
  }


  /** Tests the various ways that the space character can be handled */

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    assertUnicodeEscaping(e, "%F4%8F%BF%BF", '\uDBFF', '\uDFFF');


    // simple string tests
    assertEquals("", e.escape(""));
    assertEquals("safestring", e.escape("safestring"));
    assertEquals("embedded%00null", e.escape("embedded\0null"));
    assertEquals("max%EF%BF%BFchar", e.escape("max\uffffchar"));
  }


  /** Tests the various ways that the space character can be handled */
  public void testPlusForSpace() {

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    // simple string tests
    assertEquals("", e.escape(""));
    assertEquals("safestring", e.escape("safestring"));
    assertEquals("embedded%00null", e.escape("embedded\0null"));
    assertEquals("max%EF%BF%BFchar", e.escape("max\uffffchar"));
  }


  /** Tests the various ways that the space character can be handled */
  public void testPlusForSpace() {
    UnicodeEscaper basicEscaper = new PercentEscaper("", false);

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    assertEquals("string%20with%20spaces",
        basicEscaper.escape("string with spaces"));
    assertEquals("string+with+spaces",
        plusForSpaceEscaper.escape("string with spaces"));
    assertEquals("string with spaces",
        spaceEscaper.escape("string with spaces"));
  }


  /** Tests that if we add extra 'safe' characters they remain unescaped */
  public void testCustomEscaper() {
    UnicodeEscaper e = new PercentEscaper("+*/-", false);

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  }


  /** Tests that if specify '%' as safe the result is an idempotent escaper. */
  public void testCustomEscaper_withpercent() {
    UnicodeEscaper e = new PercentEscaper("%", false);
    assertEquals("foo%7Cbar", e.escape("foo|bar"));
    assertEquals("foo%7Cbar", e.escape("foo%7Cbar"));  // idempotent
  }


  /**
   * Test that giving a null 'safeChars' string causes a

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  /** Tests that if specify '%' as safe the result is an idempotent escaper. */
  public void testCustomEscaper_withpercent() {
    UnicodeEscaper e = new PercentEscaper("%", false);
    assertEquals("foo%7Cbar", e.escape("foo|bar"));
    assertEquals("foo%7Cbar", e.escape("foo%7Cbar"));  // idempotent
  }


  /**
   * Test that giving a null 'safeChars' string causes a
   * {@link NullPointerException}.

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