New release CL-EMB 0.3.1
CL-EMB is a library to embed Common Lisp and special template
tags into normal text files. Can be used for dynamically
generated HTML pages.
You can download it from
http://common-lisp.net/project/cl-emb/
or install with ASDF-Install.
CL-USER> (asdf:operate 'asdf:load-op :asdf-install)
CL-USER> (asdf-install:install :cl-emb)
Changes:
- Bugfix regarding the template tags @include and @call
The generated code wasn't correct after the API changes
in 0.3.0
New release CL-EMB 0.3.0
CL-EMB is a library to embed Common Lisp and special template
tags into normal text files. Can be used for dynamically
generated HTML pages.
You can download it from
http://common-lisp.net/project/cl-emb/
or install with ASDF-Install.
CL-USER> (asdf:operate 'asdf:load-op :asdf-install)
CL-USER> (asdf-install:install :cl-emb)
Changes:
- API change: EXECUTE-EMB's optional parameters are now keyword
parameters. You have to change your calls like this:
OLD: (emb:execute-emb "foo" '(:language "Common Lisp"))
NEW: (emb:execute-emb "foo" :env '(:language "Common Lisp"))
See the added keyword :ENV before the plist.
- Generator loops.
The additional keyword parameter GENERATOR-MAKER to EXECUTE-EMB
lets you supply a function, which returns a generator function.
Generator functions are described on
http://www.cs.northwestern.edu/academics/courses/325/readings/graham/genera…
Basically these are functions which answer to command codes
:TEST (==> return true when there's no further data from the
generator), :GET (==> return current value), :NEXT (==> return
next value)
The new template tags @genloop and @endgenloop are used to
build a loop which uses this generator function. First the
function supplied to GENERATOR-MAKER is called with the
corresponding keyword to the parameter of @genloop and the
value in the plist with this key. ("<% @genloop foo %>" ==>
first parameter :FOO, second parameter (getf env :foo)).
The loop itself tests if there are further values for
iterations by calling the generator function with the command
:TEST. Then the first value is fetched with :NEXT. (No :GET is
used at the moment.) The returned values have to be plists.
A simple example from the README:
CL-USER> (emb:register-emb "test10" "Square root from 1 to <% @var numbers %>: <% @genloop numbers %>sqrt(<% @var number %>) = <% @var sqrt %> <% @endgenloop %>")
#<CL-EMB::EMB-FUNCTION {581EC765}>
CL-USER> (declare (ignore key))
(let ((i 1))
#'(lambda (cmd)
(ecase cmd
(:test (> i n))
(:get `(:number ,i :sqrt ,(sqrt i)))
(:next (prog1 `(:number ,i :sqrt ,(sqrt i))
(unless (> i n)
(incf i))))))))
MAKE-SQRT-1-TO-N-GEN
CL-USER> (emb:execute-emb "test10" :env '(:numbers 10) :generator-maker 'make-sqrt-1-to-n-gen)
"Square root from 1 to 10: sqrt(1) = 1.0 sqrt(2) = 1.4142135 sqrt(3) = 1.7320508 sqrt(4) = 2.0 sqrt(5) = 2.236068 sqrt(6) = 2.4494898 sqrt(7) = 2.6457512 sqrt(8) = 2.828427 sqrt(9) = 3.0 sqrt(10) = 3.1622777 "
New release CL-EMB 0.2.2
CL-EMB is a library to embed Common Lisp and special template
tags into normal text files. Can be used for dynamically
generated HTML pages.
You can download it from
http://common-lisp.net/project/cl-emb/
or install with ASDF-Install.
CL-USER> (asdf:operate 'asdf:load-op :asdf-install)
CL-USER> (asdf-install:install :cl-emb)
Changes:
- Minor bugfix. Declared ENV ignorable in the generated code.
Should prevent warnings/errors regarding the defined but
unused variable CL-EMB-INTERN::ENV
