Package gnu.lists

Class Strings

  • public class Strings
extends java.lang.Object
    Various static utility methods for general strings (CharSeqs).

    • Constructor Summary

      Constructors 
      Constructor Description
      Strings()  

    • Method Summary

      All Methods Static Methods Concrete Methods 
      Modifier and Type Method Description
      static int characterAt​(java.lang.CharSequence cseq, int index)
      Get character (code point) at a offset.
      static int characterAt​(java.lang.CharSequence cseq, int start, int end, int index)
      Get character (code point) at a offset.
      static int compareTo​(java.lang.CharSequence str1, java.lang.CharSequence str2)  
      static void copyInto​(java.lang.CharSequence src, int start, int end, CharSeq dst, int at)  
      static java.lang.String fromUtf8​(byte[] bytes, int start, int length)  
      static int indexByCodePoints​(java.lang.CharSequence str, int index)
      Get index'th character (code point).
      static IString indirectIndexed​(java.lang.CharSequence base, IntSequence indexes)
      Make a read-only substring, generalized to arbitrary index sequences.
      static void makeCapitalize​(CharSeq str)
      Capitalize this string.
      static void makeLowerCase​(CharSeq str)
      Change every character to be lowercase.
      static void makeUpperCase​(CharSeq str)
      Change every character to be uppercase.
      static int offsetByCodePoints​(java.lang.CharSequence str, int offset, int cuStart, int cpStart)
      Like offsetByCodePoints, but optimize if an IString.
      static void printJson​(java.lang.CharSequence str, java.lang.Appendable ps)  
      static void printQuoted​(java.lang.CharSequence str, java.lang.Appendable ps, int escapes)
      Print a string with quotes and escapes.
      static java.lang.String replicate​(int from, int to, boolean suppliedTo, java.lang.CharSequence string, int start, int end, boolean suppliedEnd)  
      static int sizeInCodePoints​(java.lang.CharSequence str)  
      static java.lang.CharSequence substring​(java.lang.CharSequence base, int start, int end)
      Make a read-only substring.
      static java.lang.String toJson​(java.lang.CharSequence str)  
      static byte[] toUtf16​(java.lang.CharSequence str, int start, int end, boolean bigEndian, boolean writeBOM)  

      • Methods inherited from class java.lang.Object

        clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

    • Constructor Detail

      • Strings

        public Strings()

    • Method Detail

      • characterAt

        public static int characterAt​(java.lang.CharSequence cseq,
                              int index)
        Get character (code point) at a offset.
        Parameters:
        index - offset measured in 16-bit code units

      • characterAt

        public static int characterAt​(java.lang.CharSequence cseq,
                              int start,
                              int end,
                              int index)
        Get character (code point) at a offset.
        Parameters:
        index - offset measured in 16-bit code units, from begining of cseq, not frm start

      • indexByCodePoints

        public static int indexByCodePoints​(java.lang.CharSequence str,
                                    int index)
        Get index'th character (code point).
        Parameters:
        index - offset by code points

      • offsetByCodePoints

        public static int offsetByCodePoints​(java.lang.CharSequence str,
                                     int offset,
                                     int cuStart,
                                     int cpStart)
        Like offsetByCodePoints, but optimize if an IString.
        Parameters:
        offset - number of code points beyond start index.
        cuStart - start index in code units (Java chars)
        cpStart - start index in Unicode code points

      • sizeInCodePoints

        public static int sizeInCodePoints​(java.lang.CharSequence str)

      • makeUpperCase

        public static void makeUpperCase​(CharSeq str)
        Change every character to be uppercase.

      • makeLowerCase

        public static void makeLowerCase​(CharSeq str)
        Change every character to be lowercase.

      • makeCapitalize

        public static void makeCapitalize​(CharSeq str)
        Capitalize this string. Change first character of each word to titlecase, and change the other characters to lowercase.

      • toJson

        public static java.lang.String toJson​(java.lang.CharSequence str)

      • printJson

        public static void printJson​(java.lang.CharSequence str,
                             java.lang.Appendable ps)

      • printQuoted

        public static void printQuoted​(java.lang.CharSequence str,
                               java.lang.Appendable ps,
                               int escapes)
        Print a string with quotes and escapes.
        Parameters:
        escapes - The value 0 means only escape '"' and '\\'; the value 1 means escape standard escape characters like '\\b'; the value 2 means escape all non-ascii or control characters; the value 3 means follow the JSON standard.

      • copyInto

        public static void copyInto​(java.lang.CharSequence src,
                            int start,
                            int end,
                            CharSeq dst,
                            int at)

      • indirectIndexed

        public static IString indirectIndexed​(java.lang.CharSequence base,
                                      IntSequence indexes)
        Make a read-only substring, generalized to arbitrary index sequences. The indexes are in terms of code points (character) offsets.

      • substring

        public static java.lang.CharSequence substring​(java.lang.CharSequence base,
                                               int start,
                                               int end)
        Make a read-only substring. The start and end are in terms of code unit (16-bit char).

      • fromUtf8

        public static java.lang.String fromUtf8​(byte[] bytes,
                                        int start,
                                        int length)

      • toUtf16

        public static byte[] toUtf16​(java.lang.CharSequence str,
                             int start,
                             int end,
                             boolean bigEndian,
                             boolean writeBOM)

      • compareTo

        public static int compareTo​(java.lang.CharSequence str1,
                            java.lang.CharSequence str2)

      • replicate

        public static java.lang.String replicate​(int from,
                                         int to,
                                         boolean suppliedTo,
                                         java.lang.CharSequence string,
                                         int start,
                                         int end,
                                         boolean suppliedEnd)