com.klg.jclass.page.adobe.postscript
Class AFMParser

java.lang.Object
  |
  +--com.klg.jclass.page.adobe.postscript.AFMParser

All Implemented Interfaces:

FontParser

public class AFMParser

extends Object

implements FontParser

Reads in a file corresponding to the Adobe Font Metrics Format Specification (.afm files) and builds an in-memory representation of the specific font's information.

Parsing details: Each afm file contains information for one PostScript font program. Each begins with Global information about the font in general, then sections on individual character metrics.

The file format is line-oriented, each line beginning with a property (key) followed by values for that property. Keys and values are separated by one or more white spaces. Key names are case-sensitive.

Field Summary

static int	ASCENDER
static int	CAPHEIGHT
static int	CHARBBOX
static int	CHARNAME
static int	CODE
static int	COMMENT
static int	COMPCHAR
static int	COMPCHARPIECE
protected String	currentLine
protected String	DELIMITERS
static int	DESCENDER
static int	ENCODINGSCHEME
static int	ENDCHARMETRICS
static int	ENDCOMPOSITES
static int	ENDFONTMETRICS
static int	ENDKERNDATA
static int	ENDKERNPAIRS
static int	ENDTRACKKERN
protected static int	EOF
static int	FAMILYNAME
static int	FONTBBOX
static int	FONTNAME
static int	FULLNAME
static int	ISFIXEDPITCH
static int	ITALICANGLE
static int	KERNPAIR
static int	KERNPAIRXAMT
static String[]	keyStrings
static int	LIGATURE
static int	NOPE
protected static int	NOT_FOUND
static int	NOTICE
protected BufferedReader	reader
static int	STARTCHARMETRICS
static int	STARTCOMPOSITES
static int	STARTFONTMETRICS
static int	STARTKERNDATA
static int	STARTKERNPAIRS
static int	STARTTRACKKERN
static int	STDHW
static int	STDVW
protected StringTokenizer	tokenizer
static int	TRACKKERN
static int	UNDERLINEPOSITION
static int	UNDERLINETHICKNESS
static int	VERSION
static int	WEIGHT
static int	XHEIGHT
static int	XWIDTH
static int	XYWIDTH

Constructor Summary

AFMParser()
Constructor Call parse() to parse the file.

AFMParser(String afmFileName)
Constructor Calls parse() for you.

Method Summary

protected float	atof(String a)
protected int	atoi(String a)
protected String	getLine() Return the rest of the current line and move the pointer to the next line.
static void	main(String[] args) Driver
Vector	parse(InputStream inputStream) Parse the file and build the in-memory image.
protected void	parseCharMetrics(com.klg.jclass.page.adobe.postscript.FontPS font) This function is called by parseFile to save all character metric information.
protected void	parseCompCharData()
protected void	parseGlobals(com.klg.jclass.page.adobe.postscript.FontPS font) This function is called by "parseFile".
protected void	parsePairKernData(com.klg.jclass.page.adobe.postscript.FontPS font)
protected void	parseTrackKernData(com.klg.jclass.page.adobe.postscript.FontPS font) This function is called by "parseFile".
protected int	recognize(String key)
protected String	token() Return the next token from the file.

Methods inherited from class java.lang.Object

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

Field Detail

ASCENDER

public static final int ASCENDER

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Constant Field Values

CHARBBOX

public static final int CHARBBOX

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Constant Field Values

CODE

public static final int CODE

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Constant Field Values

COMPCHAR

public static final int COMPCHAR

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Constant Field Values

CAPHEIGHT

public static final int CAPHEIGHT

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Constant Field Values

COMMENT

public static final int COMMENT

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Constant Field Values

DESCENDER

public static final int DESCENDER

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Constant Field Values

ENCODINGSCHEME

public static final int ENCODINGSCHEME

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Constant Field Values

ENDCHARMETRICS

public static final int ENDCHARMETRICS

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Constant Field Values

ENDCOMPOSITES

public static final int ENDCOMPOSITES

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ENDFONTMETRICS

public static final int ENDFONTMETRICS

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Constant Field Values

ENDKERNDATA

public static final int ENDKERNDATA

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Constant Field Values

ENDKERNPAIRS

public static final int ENDKERNPAIRS

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ENDTRACKKERN

public static final int ENDTRACKKERN

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Constant Field Values

FAMILYNAME

public static final int FAMILYNAME

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Constant Field Values

FONTBBOX

public static final int FONTBBOX

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FONTNAME

public static final int FONTNAME

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Constant Field Values

FULLNAME

public static final int FULLNAME

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Constant Field Values

ISFIXEDPITCH

public static final int ISFIXEDPITCH

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Constant Field Values

ITALICANGLE

public static final int ITALICANGLE

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Constant Field Values

KERNPAIR

public static final int KERNPAIR

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Constant Field Values

KERNPAIRXAMT

public static final int KERNPAIRXAMT

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Constant Field Values

LIGATURE

public static final int LIGATURE

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Constant Field Values

CHARNAME

public static final int CHARNAME

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Constant Field Values

NOTICE

public static final int NOTICE

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Constant Field Values

COMPCHARPIECE

public static final int COMPCHARPIECE

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Constant Field Values

STARTCHARMETRICS

public static final int STARTCHARMETRICS

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Constant Field Values

STARTCOMPOSITES

public static final int STARTCOMPOSITES

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STARTFONTMETRICS

public static final int STARTFONTMETRICS

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Constant Field Values

STARTKERNDATA

public static final int STARTKERNDATA

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STARTKERNPAIRS

public static final int STARTKERNPAIRS

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Constant Field Values

STARTTRACKKERN

public static final int STARTTRACKKERN

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Constant Field Values

STDHW

public static final int STDHW

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Constant Field Values

STDVW

public static final int STDVW

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Constant Field Values

TRACKKERN

public static final int TRACKKERN

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Constant Field Values

UNDERLINEPOSITION

public static final int UNDERLINEPOSITION

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Constant Field Values

UNDERLINETHICKNESS

public static final int UNDERLINETHICKNESS

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Constant Field Values

VERSION

public static final int VERSION

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XYWIDTH

public static final int XYWIDTH

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XWIDTH

public static final int XWIDTH

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WEIGHT

public static final int WEIGHT

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Constant Field Values

XHEIGHT

public static final int XHEIGHT

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Constant Field Values

NOPE

public static final int NOPE

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Constant Field Values

keyStrings

public static String[] keyStrings

currentLine

protected String currentLine

EOF

protected static final int EOF

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Constant Field Values

NOT_FOUND

protected static final int NOT_FOUND

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Constant Field Values

reader

protected BufferedReader reader

DELIMITERS

protected String DELIMITERS

tokenizer

protected StringTokenizer tokenizer

Constructor Detail

AFMParser

public AFMParser()

Constructor Call parse() to parse the file.

AFMParser

public AFMParser(String afmFileName)
          throws FileNotFoundException,
                 IOException

Constructor Calls parse() for you.

Parameters:

afmFileName - a String file name.

Throws:

FileNotFoundException - If a file is not found.

IOException - If there is an error.

Method Detail

parse

public Vector parse(InputStream inputStream)
             throws IOException

Parse the file and build the in-memory image.

Specified by:

parse in interface FontParser

Returns:

the FontPS object created by reading this file.

Throws:

IOException - If there is an error.

token

protected String token()
                throws IOException

Return the next token from the file.

Returns:

the next String token from the file or null if the end of file has been reached.

IOException

getLine

protected String getLine()
                  throws IOException

Return the rest of the current line and move the pointer to the next line. And sets up the next line.

Returns:

the currentLine

IOException

parseCompCharData

protected void parseCompCharData()
                          throws IOException

IOException

parsePairKernData

protected void parsePairKernData(com.klg.jclass.page.adobe.postscript.FontPS font)
                          throws IOException

IOException

parseTrackKernData

protected void parseTrackKernData(com.klg.jclass.page.adobe.postscript.FontPS font)
                           throws IOException

This function is called by "parseFile". It will parse the AFM File up to the "EndTrackKern" or "EndKernData" keywords and save the track kerning data. parseTrackKernData is passed in a pointer to the PSFontInfo record. If data is to be saved, the PSFontInfo record will already contain a valid pointer to storage for the track kerning data.

IOException

parseCharMetrics

protected void parseCharMetrics(com.klg.jclass.page.adobe.postscript.FontPS font)
                         throws IOException

This function is called by parseFile to save all character metric information. parseCharMetrics is passed in a pointer to an array of records to hold information on a per character basis. This function parses the Character Metrics section storing all character metric information for the ALL characters (mapped and unmapped) into the array.

IOException

parseGlobals

protected void parseGlobals(com.klg.jclass.page.adobe.postscript.FontPS font)
                     throws IOException

This function is called by "parseFile". It will parse the AFM File up to the "StartCharMetrics" keyword, which essentially marks the end of the Global Font Information and the beginning of the character metrics information. If the caller of "parseFile" specified that it wanted the Global Font Information (as defined by the "AFM File Specification" document), then that information will be stored in the returned data structure. Any Global Font Information entries that are not found in a given file, will have the usual default initialization value for its type (i.e. entries of type int will be 0, etc).

IOException

atoi

protected int atoi(String a)

atof

protected float atof(String a)

recognize

protected int recognize(String key)

main

public static void main(String[] args)

Driver