org.apache.pdfbox.pdmodel.common.function.type4

Class InstructionSequenceBuilder

java.lang.Object

org.apache.pdfbox.pdmodel.common.function.type4.Parser.AbstractSyntaxHandler

org.apache.pdfbox.pdmodel.common.function.type4.InstructionSequenceBuilder

All Implemented Interfaces:

Parser.SyntaxHandler

public class InstructionSequenceBuilder
extends Parser.AbstractSyntaxHandler

Basic parser for Type 4 functions which is used to build up instruction sequences.

Version:

$Revision$

Method Summary

Methods

Modifier and Type	Method and Description
InstructionSequence	getInstructionSequence() Returns the instruction sequence that has been build from the syntactic elements.
static InstructionSequence	parse(CharSequence text) Parses the given text into an instruction sequence representing a Type 4 function that can be executed.
static int	parseInt(String token) Parses a value of type "int".
static float	parseReal(String token) Parses a value of type "real".
void	token(CharSequence text) Called when a token is encountered.

Methods inherited from class org.apache.pdfbox.pdmodel.common.function.type4.Parser.AbstractSyntaxHandler

comment, newLine, whitespace

Methods inherited from class java.lang.Object

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

Method Detail

getInstructionSequence

public InstructionSequence getInstructionSequence()

Returns the instruction sequence that has been build from the syntactic elements.

Returns:

the instruction sequence

parse

public static InstructionSequence parse(CharSequence text)

Parses the given text into an instruction sequence representing a Type 4 function that can be executed.

Parameters:

text - the Type 4 function text

Returns:

the instruction sequence

token

public void token(CharSequence text)

Called when a token is encountered. No distinction between operators and values is done here.

Parameters:

text - the token text

parseInt

public static int parseInt(String token)

Parses a value of type "int".

Parameters:

token - the token to be parsed

Returns:

the parsed value

parseReal

public static float parseReal(String token)

Parses a value of type "real".

Parameters:

token - the token to be parsed

Returns:

the parsed value