cgi-bin/viewcvs.cgi/CHANGES

Since 0.2.2

- Warning for capture variables and projections that always return the empty
  sequence.
- Bug fixes when printing location in source code.

0.2.2

- Language:
  * Runtime type-check: (e :? t) raises an exception when e doesn't 
    have type t; the exception is an explanation of why this is not the case.
    (The actual message may change in the future.)
  * Better return type for load_xml, defined as:
    AnyXml=<(Atom) (Record)>[ (AnyXml|Char)* ]
  * New style for comments: /* ... */
    Simple and double quotes within these comments are not handled
    specially. Moreover, these comments cannot be nested.
    The new style should be used for textual comments (which can include
    the simple quote); the old style is better for ignoring pieces of code.
  * Pattern guard /p in regexps to match the current tail. This can be used
    for setting "markers" without capturing anything, e.g.:
       [ (/(x:=1) ...) | (/(x:=2) ...) ]
    Back to the old semantics for default value patterns in regexps
    (they do capture an element).
  * New syntax  {...; l = p else p'; ... }. p' is applied
    to the whole matched record when p does not match (or when
    the field is missing). Equivalent to:
    { ...; l = p; ...} | ({...;...} & p')
  * Punning in record/attribute expressions and patterns.
    { x; y } is a shorthand for {x=x;y=y}.
  * New syntax for R**n in regular expressions, equivalent
    to R...R (n times), where n > 0.
  * Interval arithmetic for the * operator.
  * Warning for potential division by 0.
  * New "system", "exit", "getenv" built-in functions.

- Toplevel, interpreter, compiler:
  * New #silent, #verbose directives.
  * New --script option.
  * Removed the warning "no caml interface".

- Compilation:
  * Better compilation of sequence capture variables.
    Now, [ ... x::Any* ] is as efficient as [ ... ; x ]. Can also be written
    [ ... /x _* ]. The [ ... ; ... ] syntax is no longer necessary
    and might be deprecated.
    
- Bug fixes, including:
  * Bug fixes in configure/Makefile for Cygwin.
  * Bug fix for the compilation of complex patterns with records.
  * Fixed a little bit support for XML Schema, but still largely broken.
  * Fix --stdin.
  * Bug fix in print_xml (do not create a namespace decl for "xml:").

- Distribution:
  * apps-cduce-cvs GODI package is updatable.
  * The release tarball does not contain the CDuce website, only
    the HTML documentation (memento, tutorial, manual).

0.2.1

- string:// scheme for load_xml and others
- code updated to OCaml 3.08.1, PXP 1.1.95
- NOTE: support for namespaces in XML Schema may be broken

0.2.0

- OCaml/CDuce interface.

- Language:
  * Support for URLs in load_xml, load_html, load_file, and schemas:
    e.g. you can write `` load_html "http://www.cduce.org/" ''
    (need either the ocurl package or the netclient package).
  * More advanced (and documented) support for XML Schemas. 
  * Preliminary integration of CQL query language that is:
    select e from p1 in e1, ... ,pn in en where e'.
  * Allow structured constants in default value patterns (p := c).
  * Default value patterns in regexps don't consume an element.
  * Logical operators &&, ||, and not.
  * New syntax for currified functions
    fun (p1 : t1)...(pn : tn) : t = ...

- Incompatible changes:
  * argv is now an operator of type [] -> [ String* ].
  * The --dump, --load, --save options are deprecated.
  * Changes to the command line. "--pxp" is replaced with "--no expat".
 
- Implementation:
  * Code upgraded to Ocaml 3.07.
  * Major cleaning in progress.
  * Added internal support for abstract data types.
  * Using ulex instead of wlex.
  * Sources can now be in utf8.
  * Separate compilation.
  * Lazy implementation of @.

- Other:
  * Added configure script.
  * Various Makefile improvements.

- Bug fixes:
  * Bug fixes in the parser. Tuples are now ok in regexps.


0.1.1
  * Various bug fixes  (expat might now work)
  * Sequencing operator   e1;e2  (equivalent to: let [] = e1 in e2)
  * Encoded references
  

0.1.0
  * Support for XML Namespaces
  * Better support for expat; clean Makefile
  * Get rid of ;; and let fun in examples
  * Optional ; for record in attribute position (values and types/patterns)
  * Split --dump into --load and --save
  * Better handling of strings (specific node in AST)
  * Map, transform: tail-recursive implementation
  * Preliminary support for XML Schema
  * Various bug fixes


0.0.91
  * Second alpha release
  * Bug fixes and syntax changes (e.g. making "fun" optional in "let fun")
  * Experimenting with expat support (see expat/README)
 

0.0.9  
  * First public release (alpha release)
1	abate	1434	Since 0.2.2
2
3			- Warning for capture variables and projections that always return the empty
4			sequence.
5			- Bug fixes when printing location in source code.
6
7	abate	1422	0.2.2
8	abate	1286
9	abate	1422	- Language:
10			* Runtime type-check: (e :? t) raises an exception when e doesn't
11			have type t; the exception is an explanation of why this is not the case.
12			(The actual message may change in the future.)
13			* Better return type for load_xml, defined as:
14			AnyXml=<(Atom) (Record)>[ (AnyXml\|Char)* ]
15			* New style for comments: /* ... */
16			Simple and double quotes within these comments are not handled
17			specially. Moreover, these comments cannot be nested.
18			The new style should be used for textual comments (which can include
19			the simple quote); the old style is better for ignoring pieces of code.
20			* Pattern guard /p in regexps to match the current tail. This can be used
21			for setting "markers" without capturing anything, e.g.:
22			[ (/(x:=1) ...) \| (/(x:=2) ...) ]
23			Back to the old semantics for default value patterns in regexps
24			(they do capture an element).
25			* New syntax {...; l = p else p'; ... }. p' is applied
26			to the whole matched record when p does not match (or when
27			the field is missing). Equivalent to:
28			{ ...; l = p; ...} \| ({...;...} & p')
29			* Punning in record/attribute expressions and patterns.
30			{ x; y } is a shorthand for {x=x;y=y}.
31			* New syntax for R**n in regular expressions, equivalent
32			to R...R (n times), where n > 0.
33			* Interval arithmetic for the * operator.
34			* Warning for potential division by 0.
35			* New "system", "exit", "getenv" built-in functions.
36	abate	1401
37	abate	1422	- Toplevel, interpreter, compiler:
38			* New #silent, #verbose directives.
39			* New --script option.
40			* Removed the warning "no caml interface".
41
42			- Compilation:
43			* Better compilation of sequence capture variables.
44			Now, [ ... x::Any* ] is as efficient as [ ... ; x ]. Can also be written
45			[ ... /x _* ]. The [ ... ; ... ] syntax is no longer necessary
46			and might be deprecated.
47
48			- Bug fixes, including:
49			* Bug fixes in configure/Makefile for Cygwin.
50			* Bug fix for the compilation of complex patterns with records.
51			* Fixed a little bit support for XML Schema, but still largely broken.
52			* Fix --stdin.
53	abate	1423	* Bug fix in print_xml (do not create a namespace decl for "xml:").
54	abate	1422
55	abate	1425	- Distribution:
56	abate	1422	* apps-cduce-cvs GODI package is updatable.
57	abate	1425	* The release tarball does not contain the CDuce website, only
58			the HTML documentation (memento, tutorial, manual).
59	abate	1422
60	abate	1261	0.2.1
61	abate	1230
62			- string:// scheme for load_xml and others
63	abate	1261	- code updated to OCaml 3.08.1, PXP 1.1.95
64			- NOTE: support for namespaces in XML Schema may be broken
65	abate	1230
66	abate	1176	0.2.0
67	abate	1077
68	abate	1218	- OCaml/CDuce interface.
69
70	abate	1086	- Language:
71	abate	1218	* Support for URLs in load_xml, load_html, load_file, and schemas:
72	abate	975	e.g. you can write `` load_html "http://www.cduce.org/" ''
73	abate	1218	(need either the ocurl package or the netclient package).
74	abate	796	* More advanced (and documented) support for XML Schemas.
75	abate	820	* Preliminary integration of CQL query language that is:
76	abate	1218	select e from p1 in e1, ... ,pn in en where e'.
77			* Allow structured constants in default value patterns (p := c).
78	abate	1086	* Default value patterns in regexps don't consume an element.
79	abate	1218	* Logical operators &&, \|\|, and not.
80			* New syntax for currified functions
81			fun (p1 : t1)...(pn : tn) : t = ...
82	abate	1201
83			- Incompatible changes:
84	abate	1218	* argv is now an operator of type [] -> [ String* ].
85			* The --dump, --load, --save options are deprecated.
86	abate	1205	* Changes to the command line. "--pxp" is replaced with "--no expat".
87	abate	1086
88			- Implementation:
89			* Code upgraded to Ocaml 3.07.
90			* Major cleaning in progress.
91			* Added internal support for abstract data types.
92			* Using ulex instead of wlex.
93			* Sources can now be in utf8.
94	abate	1218	* Separate compilation.
95			* Lazy implementation of @.
96	abate	664
97	abate	1086	- Other:
98			* Added configure script.
99	abate	1218	* Various Makefile improvements.
100	abate	1086
101			- Bug fixes:
102			* Bug fixes in the parser. Tuples are now ok in regexps.
103
104
105	abate	641	0.1.1
106	abate	642	* Various bug fixes (expat might now work)
107	abate	623	* Sequencing operator e1;e2 (equivalent to: let [] = e1 in e2)
108			* Encoded references
109
110
111	abate	563	0.1.0
112	abate	562	* Support for XML Namespaces
113	abate	527	* Better support for expat; clean Makefile
114	abate	489	* Get rid of ;; and let fun in examples
115	abate	562	* Optional ; for record in attribute position (values and types/patterns)
116	abate	489	* Split --dump into --load and --save
117	abate	527	* Better handling of strings (specific node in AST)
118			* Map, transform: tail-recursive implementation
119			* Preliminary support for XML Schema
120			* Various bug fixes
121	abate	489
122	abate	527
123	abate	475	0.0.91
124			* Second alpha release
125			* Bug fixes and syntax changes (e.g. making "fun" optional in "let fun")
126			* Experimenting with expat support (see expat/README)
127
128
129	abate	370	0.0.9
130			* First public release (alpha release)