Package: org.apache.groovy.parser.antlr4.util

## [Java] Class StringUtils

- org.apache.groovy.parser.antlr4.util.StringUtils

- Utilities for handling strings

- - ### Field Summary

    Fields
    Modifiers | Name | Description
    --- | --- | ---
    `static int` | `DOLLAR_SLASHY` |
    `static int` | `NONE_SLASHY` |
    `static int` | `SLASHY` |

  - ### Methods Summary

    Methods
    Type Params | Return Type | Name and description
    --- | --- | ---
    `` | `static long` | `countChar(String text, char c)`
    `` | `static boolean` | `isEmpty(CharSequence cs)` Copied from Apache commons-lang3-3.6
    `` | `static boolean` | `matches(String text, Pattern pattern)`
    `` | `static String` | `removeCR(String text)`
    `` | `static String` | `replace(String text, String searchString, String replacement)` The modified implementation is based on StringUtils#replace(String text, String searchString, String replacement, int max), Apache commons-lang3-3.6
    `` | `static String` | `replaceEscapes(String text, int slashyType)`
    `` | `static String` | `replaceHexEscapes(String text)`
    `` | `static String` | `replaceOctalEscapes(String text)`
    `` | `static String` | `replaceStandardEscapes(String text)`
    `` | `static String` | `trimQuotations(String text, int quotationLength)`

  - ### Inherited Methods Summary

    Inherited Methods
    Methods inherited from class | Name
    --- | ---
    `class Object` | `wait, wait, wait, equals, toString, hashCode, getClass, notify, notifyAll`

- - ### Field Detail

    - #### public static final int DOLLAR_SLASHY

    - #### public static final int NONE_SLASHY

    - #### public static final int SLASHY

  - ### Method Detail

    - #### public static long countChar(String text, char c)

    - #### public static boolean isEmpty(CharSequence cs)

      Copied from Apache commons-lang3-3.6

      Checks if a CharSequence is empty ("") or null.

           StringUtils.isEmpty(null)      = true
           StringUtils.isEmpty("")        = true
           StringUtils.isEmpty(" ")       = false
           StringUtils.isEmpty("bob")     = false
           StringUtils.isEmpty("  bob  ") = false

      NOTE: This method changed in Lang version 2.0. It no longer trims the CharSequence. That functionality is available in isBlank().

      Parameters:
        `cs` - the CharSequence to check, may be null
      Returns:
        `true` if the CharSequence is empty or null

    - #### public static boolean matches(String text, Pattern pattern)

    - #### public static String removeCR(String text)

    - #### public static String replace(String text, String searchString, String replacement)

      The modified implementation is based on StringUtils#replace(String text, String searchString, String replacement, int max), Apache commons-lang3-3.6

      Replaces all occurrences of a String within another String.

      A `null` reference passed to this method is a no-op.

           StringUtils.replace(null, *, *)        = null
           StringUtils.replace("", *, *)          = ""
           StringUtils.replace("any", null, *)    = "any"
           StringUtils.replace("any", *, null)    = "any"
           StringUtils.replace("any", "", *)      = "any"
           StringUtils.replace("aba", "a", null)  = "aba"
           StringUtils.replace("aba", "a", "")    = "b"
           StringUtils.replace("aba", "a", "z")   = "zbz"

      Parameters:
        `text` - text to search and replace in, may be null
        `searchString` - the String to search for, may be null
        `replacement` - the String to replace it with, may be null
      Returns:
        the text with any replacements processed, `null` if null String input

    - #### public static String replaceEscapes(String text, int slashyType)

    - #### public static String replaceHexEscapes(String text)

    - #### public static String replaceOctalEscapes(String text)

    - #### public static String replaceStandardEscapes(String text)

    - #### public static String trimQuotations(String text, int quotationLength)