#lang racket/base
;; Copyright (c) 2018 Joel Dueck.
;;
;; Licensed under the Apache License, Version 2.0 (the "License");
;; you may not use this file except in compliance with the License.
;; A copy of the License is included with this source code, in the
;; file "LICENSE.txt".
;; You may also obtain a copy of the License at
;;
;; http://www.apache.org/licenses/LICENSE-2.0
;;
;; Unless required by applicable law or agreed to in writing, software
;; distributed under the License is distributed on an "AS IS" BASIS,
;; WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
;; See the License for the specific language governing permissions and
;; limitations under the License.
;;
;; Author contact information:
;; joel@jdueck.net
;; https://joeldueck.com
;; -------------------------------------------------------------------------
;; Functions for tags and template content used in all Pollen source files and templates.
(require (for-syntax racket/base
racket/syntax
syntax/parse
pollen/setup))
(require pollen/tag
pollen/setup
racket/function
"tags-html.rkt"
"snippets-html.rkt"
"crystalize.rkt")
(provide (all-defined-out)
(all-from-out "crystalize.rkt" "snippets-html.rkt"))
(module setup racket/base
(require syntax/modresolve)
(provide (all-defined-out))
(define poly-targets '(html))
(define cache-watchlist
(map resolve-module-path '("tags-html.rkt"
"snippets-html.rkt"
"dust.rkt"
"crystalize.rkt"))))
;; Macro for defining tag functions that automatically branch based on the
;; current output format and the list of poly-targets in the setup module.
;;
(define-syntax (poly-branch-tag stx)
(syntax-parse stx
[(_ TAG:id)
(with-syntax ([((POLY-TARGET POLY-FUNC) ...)
(for/list ([target (in-list (setup:poly-targets))])
(list target (format-id stx "~a-~a" target #'TAG)))]
[DEFAULT-FUNC (format-id stx "html-~a" #'TAG)])
#'(define-tag-function (TAG attributes elems)
(define args (cons attributes elems))
(case (current-poly-target)
[(POLY-TARGET) (apply POLY-FUNC args)] ...
[else (apply DEFAULT-FUNC args)])))]))
;; Like above, but uses define instead of define-tag-function, so arguments
;; are given ‘straight’ rather than being parsed out as attributes.
;;
(define-syntax (poly-branch-func stx)
(syntax-parse stx
[(_ TAG:id)
(with-syntax ([((POLY-TARGET POLY-FUNC) ...)
(for/list ([target (in-list (setup:poly-targets))])
(list target (format-id stx "~a-~a" target #'TAG)))]
[DEFAULT-FUNC (format-id stx "html-~a" #'TAG)])
#'(define (TAG . args)
(case (current-poly-target)
[(POLY-TARGET) (apply POLY-FUNC args)] ...
[else (apply DEFAULT-FUNC args)])))]))
;; Define all the tag functions
(poly-branch-tag root)
(poly-branch-tag p)
(poly-branch-tag i)
(poly-branch-tag em)
(poly-branch-tag b)
(poly-branch-tag strong)
(poly-branch-tag strike)
;(poly-branch-tag color)
(poly-branch-tag ol)
(poly-branch-tag ul)
(poly-branch-tag item)
(poly-branch-tag sup)
(poly-branch-tag blockquote)
(poly-branch-tag newthought)
(poly-branch-tag smallcaps)
(poly-branch-tag center)
(poly-branch-tag section)
(poly-branch-tag subsection)
(poly-branch-tag code)
(poly-branch-tag blockcode)
(poly-branch-tag verse) ; [#:title ""] [#:italic "no"]
(poly-branch-func link)
(poly-branch-func url)
(poly-branch-func fn)
(poly-branch-func fndef)
(poly-branch-tag note)
;; Not yet implemented
; (poly-branch-tag table) ; #:columns ""
; (poly-branch-tag inline-math)
; (poly-branch-tag margin-note)
; (poly-branch-tag noun)
; (poly-branch-func index-entry entry)
; (poly-branch-tag figure) ; #:src "img--sans-path.png" [#:has-print-version? "yes"]
; (poly-branch-tag spot-illustration) ; #:src "img--sans-path.png" [#:has-print-version? "yes"]
;; My pet shortcut for for/splice. Greatly cuts down on parentheses for the
;; most common use case (looping through a single list).
(define-syntax (for/s stx)
(syntax-case stx ()
[(_ thing listofthings result-expr ...)
#'(for/splice ([thing (in-list listofthings)]) result-expr ...)]))
