Utility library for the Common Lisp Postmodern library

postmodernity

# postmodernity

Postmodernity is a utility library for the Common Lisp Postmodern
library.

Postmodernity provides the `DEFPGSTRUCT` macro to define a Common Lisp
structure and corresponding Postmodern row reader. `DEFPGSTRUCT` is
not intended to provide a structure-based alternative to Postmodern's
data access objects but, rather, an alternative to list and alist row
readers.

Based on the structure name, `DEFPGSTRUCT` also creates keyword symbols
and adds them to `POSTMODERN::*RESULT-STYLES*` so that they can be used
as result format arguments to `POSTMODERN:QUERY`, `POSTMODERN:PREPARE`,
`POSTMODERN:DEFPREPARED`, and `POSTMODERN:DEFPREPARED-WITH-NAMES`. Note
that, in doing so, `DEFPGSTRUCT` accesses unexported symbols from the
POSTMODERN package.

Postmodernity depends
on [Postmodern](http://marijnhaverbeke.nl/postmodern/)
and
[Alexandria](https://common-lisp.net/project/alexandria/). Postmodernity
is being developed
with [SBCL](http://sbcl.org/), [CCL](http://ccl.clozure.com/),
and [LispWorks](http://www.lispworks.com/) on OS X.  Postmodernity is
being deployed with SBCL on Linux/AMD64.


### Installation

```lisp
(ql:quickload "postmodernity")
```


### Example

```lisp
(postmodernity:defpgstruct site
  no
  name
  address
  (age #'(lambda (string)
           (ignore-errors (parse-integer string
                                         :junk-allowed t)))))

(postmodern:defprepared-with-names select-site (no)
  ((:select 'no 'name 'address 'age :from 'site :where (:= 'no '$1))
   no)
  :site)

(postmodern:defprepared-with-names select-site! (no)
  ((:select 'no 'name 'address 'age :from 'site :where (:= 'no '$1))
   no)
  :site!)

(postmodern:defprepared select-all-sites
  (:select 'no 'name 'address 'age :from 'site)
  :sites)
```

### License

Postmodernity is distributed under the MIT license. See LICENSE.


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