CharScanner (boon 0.22 API)

java.lang.Object
- org.boon.primitive.CharScanner

```
public class CharScanner
extends Object
```
This class uses int, float and double parsing that I saw in Jackson for int parsing. I have mentioned this many times on my blog and to Tatu on a few occasions. The work is now a complete derivative, but early versions of the int parsing were heavily based on the same approach used in Jackson. I believe at all times the usage was small enough to be covered under "fair use". And now the work has been so derived and changed that it is a different beast.

Field Summary

Fields
Modifier and Type	Field and Description
`protected static int`	`ALPHA_0`
`protected static int`	`ALPHA_1`
`protected static int`	`ALPHA_2`
`protected static int`	`ALPHA_3`
`protected static int`	`ALPHA_4`
`protected static int`	`ALPHA_5`
`protected static int`	`ALPHA_6`
`protected static int`	`ALPHA_7`
`protected static int`	`ALPHA_8`
`protected static int`	`ALPHA_9`
`protected static int`	`CLOSED_BRACKET`
`protected static int`	`CLOSED_CURLY`
`protected static int`	`COMMA`
`protected static int`	`DECIMAL_POINT`
`protected static int`	`DOUBLE_QUOTE`
`protected static int`	`ESCAPE`
`protected static int`	`LETTER_BIG_E`
`protected static int`	`LETTER_E`
`protected static int`	`MINUS`
`protected static int`	`PLUS`

Constructor Summary

Constructors
Constructor and Description

CharScanner()

Constructors
Constructor and Description
`CharScanner()`

Method Summary

Methods
Modifier and Type	Method and Description
`static char[][]`	`compact(char[][] array)`
`static String`	`debugCharDescription(int c)`
`static String`	`errorDetails(String message, char[] array, int index, int ch)`
`static int`	`findChar(char c, char[] line)`
`static int`	`findChar(char c, int startIndex, char[] line)`
`static int`	`findChars(char[] matchChars, char[] line)`
`static int`	`findChars(char[] matchChars, int startIndex, char[] line)`
`static int`	`findEndQuote(char[] array, int index)`
`static int`	`findString(String matchString, char[] line)`
`static int`	`findString(String matchString, int startIndex, char[] line)`
`static boolean`	`hasDecimalChar(char[] chars, boolean negative)`
`static boolean`	`hasEscapeChar(char[] array, int index, int[] indexHolder)`
`static boolean`	`isDecimalChar(int currentChar)`
`static boolean`	`isDecimalDigit(int c)`
`static boolean`	`isDelimiter(int c)`
`static boolean`	`isDigit(int c)`
`static boolean`	`isDigits(char[] inputArray)`
`static boolean`	`isDoubleQuote(int c)`
`static boolean`	`isEscape(int c)`
`static boolean`	`isInteger(char[] digitChars)`
`static boolean`	`isInteger(char[] digitChars, int offset, int len)`
`static boolean`	`isLong(char[] digitChars)`
`static boolean`	`isLong(char[] digitChars, int offset, int len)`
`static boolean`	`isNumberDigit(int c)`
`static boolean`	`matchChars(char[] matchChars, int startIndex, char[] line)`
`static double`	`parseDouble(char[] buffer)`
`static double`	`parseDouble(char[] buffer, int from, int to)`
`static float`	`parseFloat(char[] buffer, int from, int to)`
`static int`	`parseInt(char[] digitChars)`
`static int`	`parseIntFromTo(char[] digitChars, int offset, int to)`
`static int`	`parseIntFromToIgnoreDot(char[] digitChars, int offset, int to)`
`static Number`	`parseJsonNumber(char[] buffer)`
`static Number`	`parseJsonNumber(char[] buffer, int from, int to)`
`static Number`	`parseJsonNumber(char[] buffer, int from, int max, int[] size)`
`static long`	`parseLong(char[] digitChars)`
`static long`	`parseLongFromTo(char[] digitChars, int offset, int to)`
`static long`	`parseLongFromToIgnoreDot(char[] digitChars, int offset, int to)`
`static char[]`	`readNumber(char[] array, int idx)`
`static char[]`	`readNumber(char[] array, int idx, int len)`
`static int`	`skipWhiteSpace(char[] array, int index)`
`static int`	`skipWhiteSpace(char[] array, int index, int length)`
`static int`	`skipWhiteSpaceFast(char[] array)`
`static int`	`skipWhiteSpaceFast(char[] array, int index)`
`static char[][]`	`split(char[] inputArray, char split)`
`static char[][]`	`split(char[] inputArray, char split, int limit)`
`static char[][]`	`splitByChar(int splitChar, char[] inputArray)`
`static char[][]`	`splitByChars(char[] inputArray, char... delims)`
`static char[][]`	`splitByCharsFromToDelims(char[] inputArray, int from, int to, char... delims)`
`static char[][]`	`splitByCharsNoneEmpty(char[] inputArray, char... delims)`
`static char[][]`	`splitByCharsNoneEmpty(char[] inputArray, int from, int to, char... delims)`
`static char[][]`	`splitByPipe(char[] inputArray)`
`static char[][]`	`splitBySpace(char[] inputArray)`
`static char[][]`	`splitComma(char[] inputArray)`
`static char[][]`	`splitExact(char[] inputArray, char split, int resultsArrayLength)`
`static char[][]`	`splitExact(char[] inputArray, int resultsArrayLength, char... delims)`
`static char[][]`	`splitFrom(char[] inputArray, int fromIndex, char split)`
`static char[][]`	`splitLines(char[] inputArray)`

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail
- COMMA
```
protected static final int COMMA
```
  See Also:
  Constant Field Values
- CLOSED_CURLY
```
protected static final int CLOSED_CURLY
```
  See Also:
  Constant Field Values
- CLOSED_BRACKET
```
protected static final int CLOSED_BRACKET
```
  See Also:
  Constant Field Values
- LETTER_E
```
protected static final int LETTER_E
```
  See Also:
  Constant Field Values
- LETTER_BIG_E
```
protected static final int LETTER_BIG_E
```
  See Also:
  Constant Field Values
- DECIMAL_POINT
```
protected static final int DECIMAL_POINT
```
  See Also:
  Constant Field Values
- ALPHA_0
```
protected static final int ALPHA_0
```
  See Also:
  Constant Field Values
- ALPHA_1
```
protected static final int ALPHA_1
```
  See Also:
  Constant Field Values
- ALPHA_2
```
protected static final int ALPHA_2
```
  See Also:
  Constant Field Values
- ALPHA_3
```
protected static final int ALPHA_3
```
  See Also:
  Constant Field Values
- ALPHA_4
```
protected static final int ALPHA_4
```
  See Also:
  Constant Field Values
- ALPHA_5
```
protected static final int ALPHA_5
```
  See Also:
  Constant Field Values
- ALPHA_6
```
protected static final int ALPHA_6
```
  See Also:
  Constant Field Values
- ALPHA_7
```
protected static final int ALPHA_7
```
  See Also:
  Constant Field Values
- ALPHA_8
```
protected static final int ALPHA_8
```
  See Also:
  Constant Field Values
- ALPHA_9
```
protected static final int ALPHA_9
```
  See Also:
  Constant Field Values
- MINUS
```
protected static final int MINUS
```
  See Also:
  Constant Field Values
- PLUS
```
protected static final int PLUS
```
  See Also:
  Constant Field Values
- DOUBLE_QUOTE
```
protected static final int DOUBLE_QUOTE
```
  See Also:
  Constant Field Values
- ESCAPE
```
protected static final int ESCAPE
```
  See Also:
  Constant Field Values

Constructor Detail
- CharScanner
```
public CharScanner()
```

Method Detail

isDigit
```
public static boolean isDigit(int c)
```

isDecimalDigit

public static boolean isDecimalDigit(int c)

isDecimalChar

public static boolean isDecimalChar(int currentChar)

hasDecimalChar

public static boolean hasDecimalChar(char[] chars,
                     boolean negative)

isDigits

public static boolean isDigits(char[] inputArray)

splitExact

public static char[][] splitExact(char[] inputArray,
                  char split,
                  int resultsArrayLength)

splitExact

public static char[][] splitExact(char[] inputArray,
                  int resultsArrayLength,
                  char... delims)

splitLines

public static char[][] splitLines(char[] inputArray)

split

public static char[][] split(char[] inputArray,
             char split)

split

public static char[][] split(char[] inputArray,
             char split,
             int limit)

splitFrom

public static char[][] splitFrom(char[] inputArray,
                 int fromIndex,
                 char split)

splitByChars

public static char[][] splitByChars(char[] inputArray,
                    char... delims)

splitByCharsFromToDelims

public static char[][] splitByCharsFromToDelims(char[] inputArray,
                                int from,
                                int to,
                                char... delims)

splitByCharsNoneEmpty

public static char[][] splitByCharsNoneEmpty(char[] inputArray,
                             char... delims)

splitByCharsNoneEmpty

public static char[][] splitByCharsNoneEmpty(char[] inputArray,
                             int from,
                             int to,
                             char... delims)

compact

public static char[][] compact(char[][] array)

isLong

public static boolean isLong(char[] digitChars)

isLong

public static boolean isLong(char[] digitChars,
             int offset,
             int len)

isInteger

public static boolean isInteger(char[] digitChars)

isInteger

public static boolean isInteger(char[] digitChars,
                int offset,
                int len)

parseInt

public static int parseInt(char[] digitChars)

parseIntFromTo

public static int parseIntFromTo(char[] digitChars,
                 int offset,
                 int to)

parseIntFromToIgnoreDot

public static int parseIntFromToIgnoreDot(char[] digitChars,
                          int offset,
                          int to)

parseLongFromToIgnoreDot

public static long parseLongFromToIgnoreDot(char[] digitChars,
                            int offset,
                            int to)

parseLongFromTo

public static long parseLongFromTo(char[] digitChars,
                   int offset,
                   int to)

parseLong

public static long parseLong(char[] digitChars)

parseJsonNumber

public static Number parseJsonNumber(char[] buffer)

parseJsonNumber

public static Number parseJsonNumber(char[] buffer,
                     int from,
                     int to)

isNumberDigit

public static final boolean isNumberDigit(int c)

isDelimiter

public static boolean isDelimiter(int c)

parseJsonNumber

public static Number parseJsonNumber(char[] buffer,
                     int from,
                     int max,
                     int[] size)

parseFloat

public static float parseFloat(char[] buffer,
               int from,
               int to)

parseDouble

public static double parseDouble(char[] buffer)

parseDouble

public static double parseDouble(char[] buffer,
                 int from,
                 int to)

skipWhiteSpace

public static int skipWhiteSpace(char[] array,
                 int index)

skipWhiteSpace

public static int skipWhiteSpace(char[] array,
                 int index,
                 int length)

readNumber

public static char[] readNumber(char[] array,
                int idx)

readNumber

public static char[] readNumber(char[] array,
                int idx,
                int len)

skipWhiteSpaceFast

public static int skipWhiteSpaceFast(char[] array)

skipWhiteSpaceFast

public static int skipWhiteSpaceFast(char[] array,
                     int index)

errorDetails

public static String errorDetails(String message,
                  char[] array,
                  int index,
                  int ch)

debugCharDescription

public static String debugCharDescription(int c)

isDoubleQuote

public static final boolean isDoubleQuote(int c)

isEscape

public static final boolean isEscape(int c)

hasEscapeChar

public static boolean hasEscapeChar(char[] array,
                    int index,
                    int[] indexHolder)

findEndQuote

public static int findEndQuote(char[] array,
               int index)

splitComma

public static char[][] splitComma(char[] inputArray)

splitBySpace

public static char[][] splitBySpace(char[] inputArray)

splitByChar

public static char[][] splitByChar(int splitChar,
                   char[] inputArray)

findChar

public static int findChar(char c,
           char[] line)

findChar

public static int findChar(char c,
           int startIndex,
           char[] line)

findString

public static int findString(String matchString,
             int startIndex,
             char[] line)

findString

public static int findString(String matchString,
             char[] line)

findChars

public static int findChars(char[] matchChars,
            char[] line)

matchChars

public static boolean matchChars(char[] matchChars,
                 int startIndex,
                 char[] line)

findChars

public static int findChars(char[] matchChars,
            int startIndex,
            char[] line)

splitByPipe

public static char[][] splitByPipe(char[] inputArray)

Class CharScanner

Field Summary

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

COMMA

CLOSED_CURLY

CLOSED_BRACKET

LETTER_E

LETTER_BIG_E

DECIMAL_POINT

ALPHA_0

ALPHA_1

ALPHA_2

ALPHA_3

ALPHA_4

ALPHA_5

ALPHA_6

ALPHA_7

ALPHA_8

ALPHA_9

MINUS

PLUS

DOUBLE_QUOTE

ESCAPE

Constructor Detail

CharScanner

Method Detail

isDigit

isDecimalDigit

isDecimalChar

hasDecimalChar

isDigits

splitExact

splitExact

splitLines

split

split

splitFrom

splitByChars

splitByCharsFromToDelims

splitByCharsNoneEmpty

splitByCharsNoneEmpty

compact

isLong

isLong

isInteger

isInteger

parseInt

parseIntFromTo

parseIntFromToIgnoreDot

parseLongFromToIgnoreDot

parseLongFromTo

parseLong

parseJsonNumber

parseJsonNumber

isNumberDigit

isDelimiter

parseJsonNumber

parseFloat

parseDouble

parseDouble

skipWhiteSpace

skipWhiteSpace

readNumber

readNumber

skipWhiteSpaceFast

skipWhiteSpaceFast

errorDetails

debugCharDescription

isDoubleQuote

isEscape

hasEscapeChar

findEndQuote

splitComma

splitBySpace

splitByChar

findChar

findChar