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pollen/reader-base.rkt

70 lines
3.8 KiB
Racket

#lang racket/base
(require (only-in scribble/reader make-at-reader) pollen/world racket/path pollen/project)
(provide define+provide-reader-in-mode (all-from-out pollen/world))
(define (make-custom-read custom-read-syntax-proc)
(λ(p)
(syntax->datum
(custom-read-syntax-proc (object-name p) p))))
(define (make-custom-read-syntax reader-mode)
(λ (path-string p)
(define read-inner (make-at-reader
#:command-char (if (or (equal? reader-mode world:mode-template)
(and (string? path-string) (regexp-match (pregexp (format "\\.~a$" world:template-source-ext)) path-string)))
world:template-command-marker
world:command-marker)
#:syntax? #t
#:inside? #t))
(define file-contents (read-inner path-string p))
(datum->syntax file-contents
`(module repl-wrapper racket/base
(module pollen-lang-module pollen
(define reader-mode ',reader-mode)
(define reader-here-path ,(cond
[(symbol? path-string) (symbol->string path-string)]
[(equal? path-string "unsaved editor") path-string]
[else (path->string path-string)]))
(define parser-mode
(if (equal? reader-mode world:mode-auto)
(let* ([file-ext-pattern (pregexp "\\w+$")]
[here-ext (string->symbol (car (regexp-match file-ext-pattern reader-here-path)))])
(cond
[(equal? here-ext world:pagetree-source-ext) world:mode-pagetree]
[(equal? here-ext world:markup-source-ext) world:mode-markup]
[(equal? here-ext world:markdown-source-ext) world:mode-markdown]
[else world:mode-preproc]))
reader-mode))
;; change names of exports for local use
;; so they don't conflict if this source is imported into another
(provide (except-out (all-defined-out) reader-here-path reader-mode parser-mode)
(prefix-out inner: reader-here-path)
(prefix-out inner: reader-mode)
(prefix-out inner: parser-mode))
,(require+provide-directory-require-files path-string)
,@file-contents)
(require 'pollen-lang-module)
(provide (all-from-out 'pollen-lang-module))
(module+ main
(require txexpr racket/string)
(if (or (equal? inner:parser-mode world:mode-preproc) (equal? inner:parser-mode world:mode-template))
(display doc)
(print (with-handlers ([exn:fail? (λ(exn) ((error '|pollen markup error| (string-join (cdr (string-split (exn-message exn) ": ")) ": "))))])
(validate-txexpr doc))))))
file-contents)))
(define-syntax-rule (define+provide-reader-in-mode mode)
(begin
(define reader-mode mode)
(define custom-read-syntax (make-custom-read-syntax reader-mode))
(define custom-read (make-custom-read custom-read-syntax))
(define (get-info in mod line col pos)
(λ (key default)
(case key
[else default])))
(provide (rename-out [custom-read read] [custom-read-syntax read-syntax]) get-info)))