1 $Id: Changes,v 1.25 2002-12-09 16:56:07 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 0.5 (IN PROGRESS, currently at RC1)
7 - Add an extra back-end method,
8 byte[] toType1(Properties config)
9 which generates an opaque BER-encoded PDU suitable for
10 forwarding to Z39.50 server as a pasrt of a searchRequest
11 APDU. This was contributed by Ralph Levan <levan@oclc.org>
12 - Change regression-test rules for Adam's compiler to use his
13 new front-end cql2xcql instead of the old cqlparse3.
14 - Change the names of the anchoring properties in
15 etc/pqf.properties and the CQLTermNode code that examines
16 them, in accordance with Adam's PQF-renderer's behaviour.
17 This gives more flexibility in terms of generating
18 attributes for end-of-field anchoring.
19 - Fix comment in etc/pqf.properties (claimed that the Type-1
20 "string" attribute was "phrase"). Just a documentation
22 - Change the capitalisation of the project name from
23 "cql-java" to "CQL-Java". That doesn't really make any
24 difference to anything: in particular, file-names such as
25 "cql-java.jar" remain the same.
26 - Recreate last-in-field support
27 - ### Add srw.resultSet support to the toPFQ() method.
28 - ### Fix term-to-PQF translation to omit empty properties
29 (for the broken Korean server)
31 0.4 Thu Nov 21 10:09:26 2002
32 - Add support for the new "phonetic" relation modifier,
33 including its mapping in "etc/pqf.properties".
34 - Make prefix-maps bind loosely, so that ``>dc=x a and b''
35 applies the dc=x binding to both the ``a'' and ``b''
37 - Change the XCQL output to include the nasty (but official)
38 <leftOperand> and <rightOperand> wrapper elements.
39 - Change the XCQL output to use the nasty (but official)
40 rendition of prefix-mapping: a <prefixes> element,
41 containing one of more <prefix>es may appear at the top
42 of either a <searchClause> or a <triple>.
43 - Include test/regression/xmlpp.pl in the distribution: this
44 may now be used for testing whether a CQL compiler produces
45 _equivalent_ XCQL to what's in the regression test, rather
46 than requiring byte-identical output.
47 - Include the reference XCQL output in the distribution, for
48 the regression test suite to run against.
49 - Change build process so that javadoc documentation is built
50 by "make" in the "docs" directory. There's now a top-level
51 makefile that builds the source, runs the test suite and
52 creates the documentation.
53 - Write javadoc comments for CQLRelation and ModifierSet.
54 - Other improvements to javadoc comments (e.g. describe the
55 `config' parameter to the toPQF() method.)
56 - Sort out the licence: I've settled on the LGPL.
57 - Remove the redundant and misleading etc/Grammar file.
58 - Fix up various Maintenance Agency web addresses that have
59 moved in the great ZING-release shake-up.
61 0.3 Fri Nov 15 12:04:04 2002
62 - Allow keywords to be used unquoted as search terms.
63 - Add support for serverChoiceRelation (scr).
64 - Add support for prefix-mapping, as in
65 >dc="http://www.loc.gov/zing/cql/dc-indexes/" dc.title=fish
67 >"http://www.loc.gov/zing/cql/dc-indexes/" dc.title=fish
68 The XCQL generated corresponds to Adam's suggested format
69 rather than Rob's, not so much because I prefer it (although
70 I do) as because it's what fell out when I just Coded What
71 Comes Natur'ly. That may need to change, depending on the
72 result of the ZNG list's deliberations.
73 - Fix the parser to normalise relation modifiers to lower case.
74 - Fix the CQLParser test harness not to emit an extraneous
75 blank line at end of XCQL output.
76 - Fix CQLNode documentation to contain a link to YAZ's
77 documentation of Prefix Query Format (PQF) rather than
78 containing a rather unhelpful chunk of BNF.
79 - Change the test/regression Makefile so that "make clean" now
80 does what "make distclean" used to do - the distinction
81 between them is pointless.
82 - Fix a few typos in the documentation.
83 - Move the README file's old "THINGS TO DO" section to the end
84 of this file, the new "Still to do" section.
86 0.2 Wed Nov 6 23:05:54 2002
87 - Fix the order of proximity parameters in accordance with the
88 updated official grammar, which now specifies proximity
90 prox/<relation>/<distance>/<unit>/<ordering>
91 as in ``foo prox/<=/3/sentence bar''.
92 - Make the necessary parts of the CQLNode class and its
93 subclasses public. This means that client code can now walk
94 through parse-trees and so implement its own back-end
95 (e.g. to build BER-friendly data structures using whatever
96 Z39.50 toolkit is preferred.)
97 - Add the toPQF(Properties p) method to CQLNode and its
98 subclasses. This produces a query in YAZ-style Prefix Query
99 Format, which can be trivially translated into a Z39.50
100 Type-1 query (see, for example, JZKit's code to do so).
101 - Add etc/pqf.properties to configure the toPQF() method.
102 - Add "-p <props-file>" option to the CQLParser test-harness,
103 indicating that the parsed tree is to be rendered to PQF.
104 - Add PQFTranslationException and its subclasses
105 UnknownQualifierException, UnknownRelationException,
106 UnknownRelationModifierException and
107 UnknownPositionException.
108 - Rename ParameterMissingException to MissingParameterException.
109 - Add javadoc comments for CQLNode and its subclasses.
111 0.1 Sun Nov 3 20:58:27 2002
112 - First public release.
117 - Fix the bug where "9x" is parsed as two tokens, a TT_NUMBER
118 followed by a TT_WORD. The problem here is that I don't
119 think it's actually possible to fix this without throwing
120 out StreamTokenizer and rolling our own, which we absolutely
121 - Write "package.html" file for the javadoc documentation.
122 - Some niceties for the cql-decompiling back-end:
123 * Don't emit redundant parentheses.
124 * Don't put spaces around relations that don't need them.
125 - Many refinements to the random query generator:
126 * Generate relation modifiers
128 * Don't always generate qualifier/relation for terms
129 * Better selection of qualifier (configurable?)
130 * Better selection of terms (from a dictionary file?)
131 * Introduce wildcard characters into generated terms
132 * Generate multi-word terms
133 * Generate prefix-mappings