streamline

pull/9/head
Matthew Butterick 11 years ago
parent 1c6408dee5
commit 196d9f00f3

@ -1,6 +1,6 @@
#lang racket/base
(require (only-in (planet mb/pollen/tools) as-list named-xexpr? decode tee ƒ)
(only-in (planet mb/pollen/main-helper) split-metas require-extras))
(require (planet mb/pollen/tools)
(planet mb/pollen/main-helper))
(provide (except-out (all-from-out racket/base) #%module-begin)
(rename-out [module-begin #%module-begin]))
@ -22,52 +22,38 @@
; doclang2_raw is a clone of scribble/doclang2 with decode disabled
; helpful because it collects & exports content via 'doc
(module pollen-inner (planet mb/pollen/doclang2_raw)
; use same requires as top of main.rkt
; (can't import them from surrounding module due to submodule rules)
(require (planet mb/pollen/tools)
(planet mb/pollen/template) ; for navigation functions
(planet mb/pollen/main-helper)) ; for split-metas and get-here
(require-and-provide-extras) ; brings in the project require files
; #%top binding catches ids that aren't defined
; here, convert them to basic xexpr
; #%top is a syntax transformer that returns a function
; ƒ x captures all the args (vs. ƒ(x), which only catches one)
; λ x captures all the args (vs. λ(x), which only catches one)
; and id is not spliced because it's syntax, not a true variable
(define-syntax-rule (#%top . id)
(ƒ x `(id ,@x)))
(λ x `(id ,@x)))
expr ... ; body of module
(define inner-here here) ; set up a hook for 'here (different name to avoid macrofication)
(provide (all-defined-out))
(provide (all-from-out ; pollen file should bring its requires
(planet mb/pollen/tools)
(planet mb/pollen/template))))
(provide (all-defined-out)))
(require 'pollen-inner) ; provides 'doc
(define text (as-list doc)) ; if single line, text will be a string
(set! text (if (named-xexpr? text) ; different setup depending on whether we have
`(main ,text) ; a whole xexpr or
`(main ,@text))) ; just xexpr content
(define main (append
(merge-newlines
; different setup depending on whether we have
(if (named-xexpr? text)
`(main ,text) ; a whole xexpr or
`(main ,@text))) ; just xexpr content
(list (meta "here" inner-here)))) ; append inner-here as meta
; take out the metas so they don't goof up decoding
(define-values (raw-main metas) (split-metas text))
; splice in any included files
; todo: is this a safe operation?
; assume that main will never have an attr field
; because attr would parse out as content.
(set! raw-main (splice-xexpr-content raw-main))
; decode
(define main (decode raw-main))
; append metas to decoded
(when metas
(set! main (append main metas)))
(provide main text ; module language add-ons
(except-out (all-from-out 'pollen-inner) inner-here) ; everything from user
(rename-out (inner-here here))) ; change back to 'here
(provide main)
(module+ main
((tee (ƒ(x)x) (ƒ(x)(format "named-xexpr? ~a" (named-xexpr? main)))) main))))
(print main)
(displayln "")
(displayln (format "named-xexpr? ~a" (named-xexpr? main))))))

@ -0,0 +1,7 @@
#lang planet mb/pollen
meta["metakey" "metavalue"]
Hello world
Goodnight moon
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