MkEncodingsTable

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org.enhydra.xml.io
Class MkEncodingsTable

java.lang.Object
  org.enhydra.xml.io.MkEncodingsTable

public final class MkEncodingsTable
extends java.lang.Object

Generate a file contain character encodings by parsing the IANA Charset Registry, obtained from:
ftp://ftp.isi.edu/in-notes/iana/assignments/character-sets
This is a development-time tool, with special hacks to make up for various java encoding names not in the table. The resulting file has the format:

 name bits mime-name alias1 alias2 ...

Where bits is 7, 8 or 16 and mime-name can be "null" if there is none defined. This file will be converted to XML in a future release.

Field Summary

private java.lang.String CHAR_SET_REGISTRY
          Resource name of IANA Charset Registry file.

private java.lang.String CHAR_SET_TABLE
          Character set table that is created

private static java.lang.String[] ENCODINGS_7BIT
          7 bit encoding names.

private static java.lang.String[] ENCODINGS_8BIT
          8 bit encoding names.

private static java.lang.String[] EXTRA_ENTRIES
          Extra entries to output, with no other hacks available to get them.

private static java.util.HashSet f7BitEncodings
          Tables of known 7 & 8 bit encodings.

private static java.util.HashSet f8BitEncodings


private static java.lang.String[][] HACKED_ALIASES
          Table of aliases to add.

private static java.lang.String[][] HACKED_PREFIXES
          Table of prefix conversions.

private java.lang.String REG_ALIAS_FIELD


private static java.lang.String REG_MIME_PREFERRED
          Pattern indicating the preferred MIME name.

private java.lang.String REG_NAME_FIELD
          Labels in registry file.

Constructor Summary

MkEncodingsTable()


Method Summary

private void addAlias(java.util.ArrayList aliases, java.lang.String alias)
          Add a alias to the list of aliases, if its not null or not already there.

private int getCharSize(java.lang.String encoding)
          Get the encoding size.

private void ianaParseError(java.lang.String msg, java.lang.String line)
          Generate an error about parsing a line in registry.

private boolean isMimePreferredEntry(java.lang.String line)
          Determine if a line contains the preferred MIME encoding.

static void main(java.lang.String[] args)
          Entry

private void makeHackedAliases(java.util.ArrayList aliases, java.lang.String name)
          Do special hacked mapping of name/aliases to other aliases.

private boolean parseCharSetEntry(java.io.BufferedReader in, java.io.PrintWriter out)
          Scan the input stream for the next encoding entry and parse that entry and write a record.

private void parseIanaRegistry()
          Parse the registry file.

private void parseIanaRegistry(java.io.BufferedReader in, java.io.PrintWriter out)
          Parse the registry file.

private java.lang.String parseName(java.lang.String line)
          Extract a encoding name out of a Name: or Alias: line.

Methods inherited from class java.lang.Object

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

Field Detail

CHAR_SET_REGISTRY

private final java.lang.String CHAR_SET_REGISTRY

Resource name of IANA Charset Registry file.

See Also:: Constant Field Values

CHAR_SET_TABLE

private final java.lang.String CHAR_SET_TABLE

Character set table that is created

See Also:: Constant Field Values

REG_NAME_FIELD

private final java.lang.String REG_NAME_FIELD

Labels in registry file.

See Also:: Constant Field Values

REG_ALIAS_FIELD

private final java.lang.String REG_ALIAS_FIELD

See Also:: Constant Field Values

ENCODINGS_7BIT

private static final java.lang.String[] ENCODINGS_7BIT

7 bit encoding names.

ENCODINGS_8BIT

private static final java.lang.String[] ENCODINGS_8BIT

8 bit encoding names.

f7BitEncodings

private static final java.util.HashSet f7BitEncodings

Tables of known 7 & 8 bit encodings.

f8BitEncodings

private static final java.util.HashSet f8BitEncodings

REG_MIME_PREFERRED

private static final java.lang.String REG_MIME_PREFERRED

Pattern indicating the preferred MIME name.

See Also:: Constant Field Values

HACKED_ALIASES

private static final java.lang.String[][] HACKED_ALIASES

Table of aliases to add.

HACKED_PREFIXES

private static final java.lang.String[][] HACKED_PREFIXES

Table of prefix conversions. An alias is created for names/aliases that match the first prefix, with the second subsitutued.

EXTRA_ENTRIES

private static java.lang.String[] EXTRA_ENTRIES

Extra entries to output, with no other hacks available to get them.

Constructor Detail