org.quasiliteral.syntax
Interface LexerFace

All Superinterfaces:

Marker, PassByProxy

All Known Implementing Classes:

BaseLexer, ReplayLexer

public interface LexerFace

extends PassByProxy

Untamed:

Field Summary

static char	EOFCHAR Enabled:
static short	EOFTOK Enabled: Not provided for us by byaccj

Fields inherited from interface org.erights.e.elib.serial.PassByProxy

HONORARY, HONORED_NAMES

Method Summary

Astro	composite(short tagCode, Object data, SourceSpan optSpan) Enabled: XXX Making this public was convenient for ENodeBuilder.varName/1, but is it inappropriate?
boolean	isEndOfFile() Enabled: pretty self explanatory
void	needMore(String msg) Enabled: Called when input was otherwise well formed, but ran out, so more is needed.
Astro	nextToken() Enabled: @return :Leaf (see AstroBuilder)
Astro[]	nextTopLevelUnit() Enabled: @return :Leaf[] (see AstroBuilder)
void	reset() Enabled: Skip to the end of this line, so that the next character read will be from the next line, forget any token we may have been in the midst of, and reset our indentation tracker.
void	setSource(Twine newSource) Enabled: Does not affect the partial flag
void	syntaxError(String msg) Enabled: Throws a SyntaxException that also captures the current line and position as the position of the error.

Field Detail

EOFCHAR

public static final char EOFCHAR

Enabled:

EOFTOK

public static final short EOFTOK

Enabled: Not provided for us by byaccj

Method Detail

setSource

public void setSource(Twine newSource)

Enabled: Does not affect the partial flag

reset

public void reset()

Enabled: Skip to the end of this line, so that the next character read will be from the next line, forget any token we may have been in the midst of, and reset our indentation tracker.

composite

public Astro composite(short tagCode,
                       Object data,
                       SourceSpan optSpan)

Enabled: XXX Making this public was convenient for ENodeBuilder.varName/1, but is it inappropriate?

nextTopLevelUnit

public Astro[] nextTopLevelUnit()
                         throws IOException,
                                SyntaxException

Enabled: @return :Leaf[] (see AstroBuilder)

IOException

SyntaxException

nextToken

public Astro nextToken()
                throws IOException,
                       SyntaxException

Enabled: @return :Leaf (see AstroBuilder)

IOException

SyntaxException

syntaxError

public void syntaxError(String msg)
                 throws SyntaxException

Enabled: Throws a SyntaxException that also captures the current line and position as the position of the error.

SyntaxException

needMore

public void needMore(String msg)
              throws NeedMoreException,
                     SyntaxException

Enabled: Called when input was otherwise well formed, but ran out, so more is needed.

Normally, this just turns into an equivalent 'syntaxError(msg)'. But, if the partial flag is set, meaning that the client wants to prompt intelligently for more input, then this throws a NeedMoreException that explains at what indentation the next input is expected.

NeedMoreException

SyntaxException

isEndOfFile

public boolean isEndOfFile()

Enabled: pretty self explanatory