gnu.q2.lang

Class Q2Read

java.lang.Object

java.io.Reader

gnu.text.Lexer

gnu.kawa.lispexpr.LispReader

gnu.q2.lang.Q2Read

All Implemented Interfaces:

java.io.Closeable, java.lang.AutoCloseable, java.lang.Readable

public class Q2Read
extends LispReader

A class to read Scheme forms (S-expressions).

Field Summary

Fields

Modifier and Type	Field and Description
static ReaderExtendedLiteral	braces
static Symbol	wordSym

Fields inherited from class gnu.kawa.lispexpr.LispReader

SCM_ANGLE, SCM_COLATITUDE, SCM_LEXPONENT_IS_BIGDECIMAL, SCM_NUMBERS, seenEscapes, symbolReadCase, TOKEN_ESCAPE_CHAR

Fields inherited from class gnu.text.Lexer

nesting, port, tentative, tokenBuffer, tokenBufferLength

Fields inherited from class java.io.Reader

lock

Constructor Summary

Constructors

Constructor and Description
Q2Read(gnu.kawa.io.InPort port)
Q2Read(gnu.kawa.io.InPort port, SourceMessages messages)

Method Summary

Modifier and Type	Method and Description
protected java.lang.Object	handlePostfix(java.lang.Object value, ReadTable rtable, int line, int column) After reading a value check for following '[' or ':'.
protected boolean	isTerminatingChar(int ch, ReadTable rtable)
java.lang.Object	readCommand() Read a "command" - a top-level expression or declaration.
static java.lang.Object	readObject(gnu.kawa.io.InPort port)
Pair	readValuesAndAppend(int ch, ReadTable rtable, Pair last)

Methods inherited from class gnu.kawa.lispexpr.LispReader

bindSharedObject, checkEncodingSpec, getReadCase, handleToken, makeNil, makePair, makePair, makePair, makePair2, parseNumber, parseNumber, readAndHandleToken, readCharacter, readEscape, readEscape, readGeneralArray, readHexEscape, readNestedComment, readNumberWithRadix, readObject, readObject, readObject, readSpecial, readTokenString, readValues, readValues, setCar, setCar, setCdr, setReadCase, setReturnMutablePairs, validPostfixLookupStart

Methods inherited from class gnu.text.Lexer

checkErrors, checkNext, clearErrors, close, eofError, eofError, error, error, error, fatal, getColumnNumber, getErrors, getLineNumber, getMessages, getName, getPort, isInteractive, isTentative, mark, peek, popNesting, pushNesting, read, read, readCodePoint, readDelimited, readDigits, readDigitsInBuffer, readIntDigits, readOptionalExponent, readUnicodeChar, reset, seenErrors, setInteractive, setMessages, setTentative, skip_quick, skip, tokenBufferAppend, tokenBufferString, unread_quick, unread, unread

Methods inherited from class java.io.Reader

mark, markSupported, read, read, ready, skip

Methods inherited from class java.lang.Object

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

Field Detail

wordSym

public static Symbol wordSym

braces

public static final ReaderExtendedLiteral braces

Constructor Detail

Q2Read

public Q2Read(gnu.kawa.io.InPort port)

Q2Read

public Q2Read(gnu.kawa.io.InPort port,
              SourceMessages messages)

Method Detail

readValuesAndAppend

public Pair readValuesAndAppend(int ch,
                                ReadTable rtable,
                                Pair last)
                         throws java.io.IOException,
                                SyntaxException

Overrides:

readValuesAndAppend in class LispReader

Throws:

java.io.IOException

SyntaxException

readCommand

public java.lang.Object readCommand()
                             throws java.io.IOException,
                                    SyntaxException

Description copied from class: LispReader

Read a "command" - a top-level expression or declaration. Return Sequence.eofValue at end of file.

Overrides:

readCommand in class LispReader

Throws:

java.io.IOException

SyntaxException

isTerminatingChar

protected boolean isTerminatingChar(int ch,
                                    ReadTable rtable)
                             throws java.io.IOException,
                                    SyntaxException

Overrides:

isTerminatingChar in class LispReader

Throws:

java.io.IOException

SyntaxException

handlePostfix

protected java.lang.Object handlePostfix(java.lang.Object value,
                                         ReadTable rtable,
                                         int line,
                                         int column)
                                  throws java.io.IOException,
                                         SyntaxException

Description copied from class: LispReader

After reading a value check for following '[' or ':'.

Overrides:

handlePostfix in class LispReader

Throws:

java.io.IOException

SyntaxException

readObject

public static java.lang.Object readObject(gnu.kawa.io.InPort port)
                                   throws java.io.IOException,
                                          SyntaxException

Throws:

java.io.IOException

SyntaxException