1 $Id: Changes,v 1.37 2007-06-29 13:10:58 mike Exp $
3 Revision history for the CQL-Java package.
4 See the bottom of this file for a list of things still to do.
6 1.0 Fri Jun 29 14:10:28 BST 2007
7 - Support for version 1.1 as described at
8 http://www.loc.gov/standards/sru/cql/
9 Since this is a significant leap forward, the version
10 numbering increases to the next major version.
11 - "Qualifiers" renamed as "indexes" throughout, to match what
12 is now universal CQL terminology.
14 PLEASE NOTE THE FOLLOWING INCOMPATIBLE API CHANGES
15 - The class UnknownQualifierException is replaced by
16 UnknownIndexException.
17 - The CQLTermNode method getQualifier() is replaced by
20 0.7 Thu Sep 4 22:51:11 2003
21 - Support for profiled relations and relation modifiers:
22 recognise any non-key word as a relation or modifier,
23 rejecting those that are not of the form <prefix>.<name>
24 since these must be explicitly tied to a "context" (what
25 used to be called a qualifier-set or index-set).
27 0.6 Tue Jul 29 23:33:56 2003
28 - Include Ralph's fix for CQLTermNode::toType1BER() to prevent
29 it surrounding multi-word terms in quotes when encoded into
32 0.5 Wed Feb 5 15:50:57 2003
33 - Add an extra back-end method,
34 byte[] toType1BER(Properties config)
35 which generates an opaque BER-encoded PDU suitable for
36 forwarding to Z39.50 server as a pasrt of a searchRequest
37 APDU. This was contributed by Ralph Levan <levan@oclc.org>
38 - Add srw.resultSet support to the toPFQ() method.
39 - Add new resultSetName() method to CQLNode and its
40 subclasses, returning the name of the referenced result-set
41 for a node that is just a result-set reference, and null for
43 - Change regression-test rules for Adam's compiler to use his
44 new front-end cql2xcql instead of the old cqlparse3.
45 - Change the names of the anchoring properties in
46 etc/pqf.properties and the CQLTermNode code that examines
47 them, in accordance with Adam's PQF-renderer's behaviour.
48 This gives more flexibility in terms of generating
49 attributes for end-of-field anchoring. Various other minor
50 tweaks to the pqf.properties file, mostly to the comments.
51 - Change the capitalisation of the project name from
52 "cql-java" to "CQL-Java". That doesn't really make any
53 difference to anything: in particular, file-names such as
54 "cql-java.jar" remain the same.
56 0.4 Thu Nov 21 10:09:26 2002
57 - Add support for the new "phonetic" relation modifier,
58 including its mapping in "etc/pqf.properties".
59 - Make prefix-maps bind loosely, so that ``>dc=x a and b''
60 applies the dc=x binding to both the ``a'' and ``b''
62 - Change the XCQL output to include the nasty (but official)
63 <leftOperand> and <rightOperand> wrapper elements.
64 - Change the XCQL output to use the nasty (but official)
65 rendition of prefix-mapping: a <prefixes> element,
66 containing one of more <prefix>es may appear at the top
67 of either a <searchClause> or a <triple>.
68 - Include test/regression/xmlpp.pl in the distribution: this
69 may now be used for testing whether a CQL compiler produces
70 _equivalent_ XCQL to what's in the regression test, rather
71 than requiring byte-identical output.
72 - Include the reference XCQL output in the distribution, for
73 the regression test suite to run against.
74 - Change build process so that javadoc documentation is built
75 by "make" in the "docs" directory. There's now a top-level
76 makefile that builds the source, runs the test suite and
77 creates the documentation.
78 - Write javadoc comments for CQLRelation and ModifierSet.
79 - Other improvements to javadoc comments (e.g. describe the
80 `config' parameter to the toPQF() method.)
81 - Sort out the licence: I've settled on the LGPL.
82 - Remove the redundant and misleading etc/Grammar file.
83 - Fix up various Maintenance Agency web addresses that have
84 moved in the great ZING-release shake-up.
86 0.3 Fri Nov 15 12:04:04 2002
87 - Allow keywords to be used unquoted as search terms.
88 - Add support for serverChoiceRelation (scr).
89 - Add support for prefix-mapping, as in
90 >dc="http://www.loc.gov/zing/cql/dc-indexes/" dc.title=fish
92 >"http://www.loc.gov/zing/cql/dc-indexes/" dc.title=fish
93 The XCQL generated corresponds to Adam's suggested format
94 rather than Rob's, not so much because I prefer it (although
95 I do) as because it's what fell out when I just Coded What
96 Comes Natur'ly. That may need to change, depending on the
97 result of the ZNG list's deliberations.
98 - Fix the parser to normalise relation modifiers to lower case.
99 - Fix the CQLParser test harness not to emit an extraneous
100 blank line at end of XCQL output.
101 - Fix CQLNode documentation to contain a link to YAZ's
102 documentation of Prefix Query Format (PQF) rather than
103 containing a rather unhelpful chunk of BNF.
104 - Change the test/regression Makefile so that "make clean" now
105 does what "make distclean" used to do - the distinction
106 between them is pointless.
107 - Fix a few typos in the documentation.
108 - Move the README file's old "THINGS TO DO" section to the end
109 of this file, the new "Still to do" section.
111 0.2 Wed Nov 6 23:05:54 2002
112 - Fix the order of proximity parameters in accordance with the
113 updated official grammar, which now specifies proximity
114 operators of the form
115 prox/<relation>/<distance>/<unit>/<ordering>
116 as in ``foo prox/<=/3/sentence bar''.
117 - Make the necessary parts of the CQLNode class and its
118 subclasses public. This means that client code can now walk
119 through parse-trees and so implement its own back-end
120 (e.g. to build BER-friendly data structures using whatever
121 Z39.50 toolkit is preferred.)
122 - Add the toPQF(Properties p) method to CQLNode and its
123 subclasses. This produces a query in YAZ-style Prefix Query
124 Format, which can be trivially translated into a Z39.50
125 Type-1 query (see, for example, JZKit's code to do so).
126 - Add etc/pqf.properties to configure the toPQF() method.
127 - Add "-p <props-file>" option to the CQLParser test-harness,
128 indicating that the parsed tree is to be rendered to PQF.
129 - Add PQFTranslationException and its subclasses
130 UnknownQualifierException, UnknownRelationException,
131 UnknownRelationModifierException and
132 UnknownPositionException.
133 - Rename ParameterMissingException to MissingParameterException.
134 - Add javadoc comments for CQLNode and its subclasses.
136 0.1 Sun Nov 3 20:58:27 2002
137 - First public release.
142 - Test-harness option to use Type1 BER back-end.
143 - Case-insensitive matching for serverChoice and any other
144 special-case qualifiers. (Are the configured qualifiers
145 matched case-insensitively? They should be.)
146 - Prefix-aware matching for serverChoice, so that
147 >x="http://www.loc.gov/zing/srw/dc-indexes/v1.0/" x.resultSet=foo
148 does the right thing.
149 - Extend test-suite for PQF and BER renderers.
150 - Additional test-suite entries for things like
152 - Add a new configuration file that allows arbitrary new
153 relations and relation modifiers to be defined.
154 - Fix the bug where "9x" is parsed as two tokens, a TT_NUMBER
155 followed by a TT_WORD. The problem here is that I don't
156 think it's actually possible to fix this without throwing
157 out StreamTokenizer and rolling our own, which we absolutely
158 - Fix term-to-PQF translation to omit empty properties
159 (for the broken Korean server)
160 - Write "package.html" file for the javadoc documentation.
161 - Some niceties for the cql-decompiling back-end:
162 * Don't emit redundant parentheses.
163 * Don't put spaces around relations that don't need them.
164 - Many refinements to the random query generator:
165 * Generate relation modifiers
167 * Don't always generate qualifier/relation for terms
168 * Better selection of qualifier (configurable?)
169 * Better selection of terms (from a dictionary file?)
170 * Introduce wildcard characters into generated terms
171 * Generate multi-word terms
172 * Generate prefix-mappings