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55 lines
4.3 KiB
Racket
55 lines
4.3 KiB
Racket
#lang racket/base
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(require (for-syntax racket/base syntax/strip-context racket/syntax "../world.rkt" "split-metas.rkt")
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"to-string.rkt" "../pagetree.rkt" "splice.rkt" "../world.rkt") ; need world here to resolve PARSER-MODE-ARG
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(provide (all-defined-out))
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(define-syntax-rule (define+provide-module-begin-in-mode PARSER-MODE-ARG)
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(begin
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(provide (except-out (all-from-out racket/base) #%module-begin)
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(rename-out [pollen-module-begin #%module-begin]))
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(define-syntax (pollen-module-begin stx)
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(syntax-case stx ()
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[(_ EXPR (... ...))
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(let-values ([(meta-hash expr-without-metas) (split-metas (syntax->datum #'(EXPR (... ...))) (world:current-define-meta-name))])
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(with-syntax ([META-HASH (datum->syntax #'(EXPR (... ...)) meta-hash)]
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[(EXPR-WITHOUT-METAS (... ...)) (datum->syntax #'(EXPR (... ...)) expr-without-metas)]
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[METAS (format-id #'(EXPR (... ...)) "~a" (world:current-meta-export))]
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[META-MOD (format-symbol "~a" (world:current-meta-export))]
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[ROOT (format-id #'(EXPR (... ...)) "~a" (world:current-main-root-node))]
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[NEWLINE (datum->syntax #'(EXPR (... ...)) (world:current-newline))]
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[MODE-PAGETREE (datum->syntax #'(EXPR (... ...)) world:mode-pagetree)]
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[MODE-MARKUP (datum->syntax #'(EXPR (... ...)) world:mode-markup)]
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[MODE-MARKDOWN (datum->syntax #'(EXPR (... ...)) world:mode-markdown)]
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[SPLICING_TAG (datum->syntax #'(EXPR (... ...)) (world:current-splicing-tag))]
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[DOC (format-id #'(EXPR (... ...)) "~a" (world:current-main-export))]
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[DOC-RAW (generate-temporary 'pollen-)]); prevents conflicts with other imported Pollen sources
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(replace-context #'(EXPR (... ...))
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#'(#%module-begin
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(module META-MOD racket/base
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(provide METAS)
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(define METAS META-HASH))
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(module inner pollen/private/doclang-raw
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DOC-RAW ; positional arg for doclang-raw that sets name of export.
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(require pollen/top pollen/world pollen/core)
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(require (submod ".." META-MOD))
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(provide (all-defined-out) #%top (all-from-out (submod ".." META-MOD) pollen/core))
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EXPR-WITHOUT-METAS (... ...))
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(require 'inner)
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(define DOC
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(let* ([parser-mode-undefined? (procedure? inner:parser-mode)] ; if undefined, #%top makes it a procedure
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[parser-mode (if parser-mode-undefined? PARSER-MODE-ARG inner:parser-mode)]
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[proc (cond
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[(eq? parser-mode 'MODE-PAGETREE) decode-pagetree]
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[(eq? parser-mode 'MODE-MARKUP) (λ(xs) (apply ROOT xs))] ; if `root` undefined, it becomes a default tag function
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[(eq? parser-mode 'MODE-MARKDOWN)
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(λ(xs) (apply ROOT ((dynamic-require 'markdown 'parse-markdown) (apply string-append (map to-string xs)))))]
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[else (λ(xs) (apply string-append (map to-string xs)))])] ; string output for preprocessor
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;; drop leading newlines, as they're often the result of `defines` and `requires`
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[doc-elements (or (memf (λ(ln) (not (equal? ln NEWLINE))) DOC-RAW) null)]
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[doc-elements-spliced (splice doc-elements 'SPLICING_TAG)])
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(proc doc-elements-spliced)))
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(provide DOC METAS (except-out (all-from-out 'inner) DOC-RAW #%top))))))])))) ; hide internal exports |