CharacterSource (Groovy 2.5.11)

All Known Implementing Classes:

ReaderCharacterSource
```
public interface CharacterSource
```

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`boolean`	`consumeIfMatch(char[] match)`	Useful for finding constants in a string like true, false, etc.
`int`	`currentChar()`	returns the current character without changing the IO pointer or index.
`String`	`errorDetails(String message)`
`char[]`	`findNextChar(int ch, int esc)`	Used to find strings and their ilk Finds the next non-escaped char
`boolean`	`hadEscape()`
`boolean`	`hasChar()`	Checks to see if there is a next character.
`int`	`location()`	This is mostly for debugging and testing.
`int`	`nextChar()`	returns the next character moving the file pointer or index to the next location.
`char[]`	`readNumber()`	Reads a number from the character source.
`int`	`safeNextChar()`	Combines the operations of nextChar and hasChar.
`void`	`skipWhiteSpace()`	Skip white space.

- Method Detail
  - skipWhiteSpace
```
void skipWhiteSpace()
```
    Skip white space.
  - nextChar
```
int nextChar()
```
    returns the next character moving the file pointer or index to the next location.
  - currentChar
```
int currentChar()
```
    returns the current character without changing the IO pointer or index.
  - hasChar
```
boolean hasChar()
```
    Checks to see if there is a next character.
  - consumeIfMatch
```
boolean consumeIfMatch(char[] match)
```
    Useful for finding constants in a string like true, false, etc.
  - location
```
int location()
```
    This is mostly for debugging and testing.
  - safeNextChar
```
int safeNextChar()
```
    Combines the operations of nextChar and hasChar. Characters is -1 if not found which signifies end of file. This might be preferable to avoid two method calls.
  - findNextChar
```
char[] findNextChar(int ch,
                    int esc)
```
    Used to find strings and their ilk Finds the next non-escaped char
    
    Parameters:
    
    ch - character to find
    
    esc - escape character to avoid next char if escaped
    
    Returns:
    
    list of chars until this is found.
  - hadEscape
```
boolean hadEscape()
```
  - readNumber
```
char[] readNumber()
```
    Reads a number from the character source.
  - errorDetails
```
String errorDetails(String message)
```