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;;; tissue --- Text based issue tracker
;;; Copyright © 2022 Arun Isaac <arunisaac@systemreboot.net>
;;;
;;; This file is part of tissue.
;;;
;;; tissue is free software: you can redistribute it and/or modify it
;;; under the terms of the GNU General Public License as published by
;;; the Free Software Foundation, either version 3 of the License, or
;;; (at your option) any later version.
;;;
;;; tissue is distributed in the hope that it will be useful, but
;;; WITHOUT ANY WARRANTY; without even the implied warranty of
;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
;;; General Public License for more details.
;;;
;;; You should have received a copy of the GNU General Public License
;;; along with tissue. If not, see <https://www.gnu.org/licenses/>.
(define-module (doc skribilo)
#:use-module (srfi srfi-1)
#:use-module (srfi srfi-9)
#:use-module (srfi srfi-26)
#:use-module (srfi srfi-171)
#:use-module (ice-9 match)
#:use-module (texinfo)
#:use-module (skribilo package base)
#:export (docstring-function-documentation
function-documentation))
(define-record-type <function>
(function name arguments docstring)
function?
(name function-name)
(arguments function-arguments)
(docstring function-docstring))
(define (find-function-definition file name)
"Return a @code{<function>} object describing a function named
@var{name} in @var{file}."
(call-with-input-file file
(cut port-transduce
(tmap identity)
(rany (match-lambda
(((or 'define 'define* 'define-lazy)
((? (cut eq? name <>)) arguments ...)
docstring
body ...)
(function name arguments docstring))
(_ #f)))
read
<>)))
(define (stexi->skribe stexi)
"Convert @var{stexi}, a stexinfo tree, to a skribe tree."
(match stexi
(('*fragment* children ...)
(map stexi->skribe children))
(('para children ...)
(cons 'paragraph children))))
(define (quoted-write object port)
"Write @var{object} to @var{port} printing quoted expressions using
the quote character."
(match object
(('quote child)
(display "'" port)
(quoted-write child port))
((parent children ...)
(display "(" port)
(quoted-write parent port)
(unless (null? children)
(display " " port))
(for-each (cut quoted-write <> port)
children)
(display ")" port))
(_ (write object port))))
(define (docstring-function-documentation file name)
"Document function of @var{name} from @var{file} using its docstring."
(let ((function (or (find-function-definition file name)
(error "Function not found in file:" name file))))
(item #:key (code (list "("
(bold (symbol->string name))
(unless (null? (function-arguments function))
" ")
(string-join (map (lambda (element)
(call-with-output-string
(cut quoted-write element <>)))
(function-arguments function)))
")"))
(map (cut eval <> (current-module))
(stexi->skribe
(texi-fragment->stexi
(function-docstring function)))))))
(define (function-documentation name arguments . documentation)
"Document function of @var{name} with @var{arguments} and
@var{documentation}."
(apply item
#:key (code (list "("
(bold (symbol->string name))
" "
arguments
")"))
documentation))
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