Wrench.CodeLexer Class Reference

Detailed Description

Provides a wrapper for reading characters from a string of code. It strips comments and other junk internally such as tabs and spaces.

Inheritance diagram for Wrench.CodeLexer:

Public Member Functions
	CodeLexer (string code)
	Creates a new code lexer with the given code text. More...
override char	Read ()
	Reads a character from the string. More...
bool	PeekJunk ()
	Finds if the current location is followed by junk. Note that the junk has already been read off. More...
bool	ReadJunk ()
	Skips junk in the text such as tabs or comments. More...
Public Member Functions inherited from Wrench.StringReader
	StringReader (string str)
	Creates a new reader for the given string. More...
bool	More ()
	Checks if there is anything left to read. More...
char	Peek ()
	Takes a peek at the next character in the stream without reading it. More...
char	Peek (int delta)
	Takes a peek at the character that is a number of characters away from the next one without actually reading it. Peek(0) is the next character, Peek(1) is the one after that etc. More...
void	StepBack ()
	Steps back one place in the stream. More...
void	Advance ()
	Steps forward one place in the stream. More...
int	Length ()
	The length of the string. More...
void	ReadUntil (char character)
	Keeps reading the given character from the stream until it's no longer next. Used for e.g. stripping an unknown length block of whitespaces in the stream. More...
void	ReadOff (char[] chars)
	Keeps reading from the stream until no characters in the given set are next. Used for e.g. stripping an unknown number of newlines ( or ) from this stream. More...
void	ReadOff (char[] chars, out int count)
	Keeps reading from the stream until no characters in the given set are next. Used for e.g. stripping an unknown number of newlines ( or ) from this stream. More...
int	GetLineNumber ()
	Gets the line number that the pointer is currently at. More...
int	GetLineNumber (out int charOnLine)
	Gets the line number and character number that the pointer is currently at. More...
string	ReadLine (int lineNumber)
	Reads the numbered line from this stream. More...

Public Attributes
bool	Literal
	Set this true if no junk should be stripped out. More...
int	LineNumber =1
	The current line the lexer is on. More...
bool	DidReadJunk
	True if the lexer just read some junk. More...
Public Attributes inherited from Wrench.StringReader
char[]	Chars
	The internal buffer of characters from the original string. More...
int	Position
	The current position this reader is at in the string. More...

Private Member Functions
void	LineCheck (char c)
	Increases the line count if the given character is a newline. More...

Additional Inherited Members
Static Public Attributes inherited from Wrench.StringReader
static char	NULL ='\0'
	The null character. This is returned when operations are working beyond the end of the stream. More...

Constructor & Destructor Documentation

Wrench.CodeLexer.CodeLexer ( string  code)

inline

Creates a new code lexer with the given code text.

Parameters

code	The code to parse.

Member Function Documentation

void Wrench.CodeLexer.LineCheck ( char  c)

inlineprivate

Increases the line count if the given character is a newline.

bool Wrench.CodeLexer.PeekJunk ( )

inline

Finds if the current location is followed by junk. Note that the junk has already been read off.

Returns

True if it is, false otherwise.

override char Wrench.CodeLexer.Read ( )

inlinevirtual

Reads a character from the string.

Returns

The character read.

Reimplemented from Wrench.StringReader.

bool Wrench.CodeLexer.ReadJunk ( )

inline

Skips junk in the text such as tabs or comments.

Returns

True if junk was read off.

Member Data Documentation

bool Wrench.CodeLexer.DidReadJunk

True if the lexer just read some junk.

int Wrench.CodeLexer.LineNumber =1

The current line the lexer is on.

bool Wrench.CodeLexer.Literal

Set this true if no junk should be stripped out.