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Diffstat (limited to 'src/stklos/runtime.stk')
| -rw-r--r-- | src/stklos/runtime.stk | 456 |
1 files changed, 456 insertions, 0 deletions
diff --git a/src/stklos/runtime.stk b/src/stklos/runtime.stk new file mode 100644 index 0000000..58d0d45 --- /dev/null +++ b/src/stklos/runtime.stk @@ -0,0 +1,456 @@ +;;;; +;;;; runtime.stk -- Skribe runtime system +;;;; +;;;; Copyright © 2003-2004 Erick Gallesio - I3S-CNRS/ESSI <eg@unice.fr> +;;;; +;;;; +;;;; This program 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 2 of the License, or +;;;; (at your option) any later version. +;;;; +;;;; This program 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 this program; if not, write to the Free Software +;;;; Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, +;;;; USA. +;;;; +;;;; Author: Erick Gallesio [eg@essi.fr] +;;;; Creation date: 13-Aug-2003 18:47 (eg) +;;;; Last file update: 15-Nov-2004 14:03 (eg) +;;;; + +(define-module SKRIBE-RUNTIME-MODULE + (import SKRIBE-DEBUG-MODULE SKRIBE-VERIFY-MODULE SKRIBE-RESOLVE-MODULE + SKRIBE-OUTPUT-MODULE SKRIBE-EVAL-MODULE) + + (export ;; Utilities + strip-ref-base ast->file-location string-canonicalize + + ;; Markup functions + markup-option markup-option-add! markup-output + + ;; Container functions + container-env-get + + ;; Images + convert-image + + ;; String writing + make-string-replace + + ;; AST + ast->string + ) + +;;;; ====================================================================== +;;;; +;;;; U T I L I T I E S +;;;; +;;;; ====================================================================== +(define skribe-load 'function-defined-below) + + +;;FIXME: Remonter cette fonction +(define (strip-ref-base file) + (if (not (string? *skribe-ref-base*)) + file + (let ((l (string-length *skribe-ref-base*))) + (cond + ((not (> (string-length file) (+ l 2))) + file) + ((not (substring=? file *skribe-ref-base* l)) + file) + ((not (char=? (string-ref file l) (file-separator))) + file) + (else + (substring file (+ l 1) (string-length file))))))) + + +(define (ast->file-location ast) + (let ((l (ast-loc ast))) + (if (location? l) + (format "~a:~a:" (location-file l) (location-line l)) + ""))) + +;; FIXME: Remonter cette fonction +(define (string-canonicalize old) + (let* ((l (string-length old)) + (new (make-string l))) + (let loop ((r 0) + (w 0) + (s #f)) + (cond + ((= r l) + (cond + ((= w 0) + "") + ((char-whitespace? (string-ref new (- w 1))) + (substring new 0 (- w 1))) + ((= w r) + new) + (else + (substring new 0 w)))) + ((char-whitespace? (string-ref old r)) + (if s + (loop (+ r 1) w #t) + (begin + (string-set! new w #\-) + (loop (+ r 1) (+ w 1) #t)))) + ((or (char=? (string-ref old r) #\#) + (>= (char->integer (string-ref old r)) #x7f)) + (string-set! new w #\-) + (loop (+ r 1) (+ w 1) #t)) + (else + (string-set! new w (string-ref old r)) + (loop (+ r 1) (+ w 1) #f)))))) + + +;;;; ====================================================================== +;;;; +;;;; M A R K U P S F U N C T I O N S +;;;; +;;;; ====================================================================== +;;; (define (markup-output markup +;; :optional (engine #f) +;; :key (predicate #f) +;; (options '()) +;; (before #f) +;; (action #f) +;; (after #f)) +;; (let ((e (or engine (use-engine)))) +;; (cond +;; ((not (is-a? e <engine>)) +;; (skribe-error 'markup-writer "illegal engine" e)) +;; ((and (not before) +;; (not action) +;; (not after)) +;; (%find-markup-output e markup)) +;; (else +;; (let ((mp (if (procedure? predicate) +;; (lambda (n e) (and (is-markup? n markup) (predicate n e))) +;; (lambda (n e) (is-markup? n markup))))) +;; (engine-output e markup mp options +;; (or before (slot-ref e 'default-before)) +;; (or action (slot-ref e 'default-action)) +;; (or after (slot-ref e 'default-after)))))))) + +(define (markup-option m opt) + (if (markup? m) + (let ((c (assq opt (slot-ref m 'options)))) + (and (pair? c) (pair? (cdr c)) + (cadr c))) + (skribe-type-error 'markup-option "Illegal markup: " m "markup"))) + + +(define (markup-option-add! m opt val) + (if (markup? m) + (slot-set! m 'options (cons (list opt val) + (slot-ref m 'options))) + (skribe-type-error 'markup-option "Illegal markup: " m "markup"))) + +;;;; ====================================================================== +;;;; +;;;; C O N T A I N E R S +;;;; +;;;; ====================================================================== +(define (container-env-get m key) + (let ((c (assq key (slot-ref m 'env)))) + (and (pair? c) (cadr c)))) + + +;;;; ====================================================================== +;;;; +;;;; I M A G E S +;;;; +;;;; ====================================================================== +(define (builtin-convert-image from fmt dir) + (let* ((s (suffix from)) + (f (string-append (prefix (basename from)) "." fmt)) + (to (string-append dir "/" f))) ;; FIXME: + (cond + ((string=? s fmt) + to) + ((file-exists? to) + to) + (else + (let ((c (if (string=? s "fig") + (string-append "fig2dev -L " fmt " " from " > " to) + (string-append "convert " from " " to)))) + (cond + ((> *skribe-verbose* 1) + (format (current-error-port) " [converting image: ~S (~S)]" from c)) + ((> *skribe-verbose* 0) + (format (current-error-port) " [converting image: ~S]" from))) + (and (zero? (system c)) + to)))))) + +(define (convert-image file formats) + (let ((path (find-path file (skribe-image-path)))) + (if (not path) + (skribe-error 'convert-image + (format "Can't find `~a' image file in path: " file) + (skribe-image-path)) + (let ((suf (suffix file))) + (if (member suf formats) + (let* ((dir (if (string? *skribe-dest*) + (dirname *skribe-dest*) + #f))) + (if dir + (let ((dest (basename path))) + (copy-file path (make-path dir dest)) + dest) + path)) + (let loop ((fmts formats)) + (if (null? fmts) + #f + (let* ((dir (if (string? *skribe-dest*) + (dirname *skribe-dest*) + ".")) + (p (builtin-convert-image path (car fmts) dir))) + (if (string? p) + p + (loop (cdr fmts))))))))))) + +;;;; ====================================================================== +;;;; +;;;; S T R I N G - W R I T I N G +;;;; +;;;; ====================================================================== + +;; +;; (define (%make-html-replace) +;; ;; Ad-hoc version for HTML, a little bit faster than the +;; ;; make-general-string-replace define later (particularily if there +;; ;; is nothing to replace since, it does not allocate a new string +;; (let ((specials (string->regexp "&|\"|<|>"))) +;; (lambda (str) +;; (if (regexp-match specials str) +;; (begin +;; (let ((out (open-output-string))) +;; (dotimes (i (string-length str)) +;; (let ((ch (string-ref str i))) +;; (case ch +;; ((#\") (display """ out)) +;; ((#\&) (display "&" out)) +;; ((#\<) (display "<" out)) +;; ((#\>) (display ">" out)) +;; (else (write-char ch out))))) +;; (get-output-string out))) +;; str)))) + + +(define (%make-general-string-replace lst) + ;; The general version + (lambda (str) + (let ((out (open-output-string))) + (dotimes (i (string-length str)) + (let* ((ch (string-ref str i)) + (res (assq ch lst))) + (display (if res (cadr res) ch) out))) + (get-output-string out)))) + + +(define (make-string-replace lst) + (let ((l (sort lst (lambda (r1 r2) (char<? (car r1) (car r2)))))) + (cond + ((equal? l '((#\" """) (#\& "&") (#\< "<") (#\> ">"))) + string->html) + (else + (%make-general-string-replace lst))))) + + + + +;;;; ====================================================================== +;;;; +;;;; O P T I O N S +;;;; +;;;; ====================================================================== + +;;NEW ;; +;;NEW ;; GET-OPTION +;;NEW ;; +;;NEW (define (get-option obj key) +;;NEW ;; This function either searches inside an a-list or a markup. +;;NEW (cond +;;NEW ((pair? obj) (let ((c (assq key obj))) +;;NEW (and (pair? c) (pair? (cdr c)) (cadr c)))) +;;NEW ((markup? obj) (get-option (slot-ref obj 'option*) key)) +;;NEW (else #f))) +;;NEW +;;NEW ;; +;;NEW ;; BIND-OPTION! +;;NEW ;; +;;NEW (define (bind-option! obj key value) +;;NEW (slot-set! obj 'option* (cons (list key value) +;;NEW (slot-ref obj 'option*)))) +;;NEW +;;NEW +;;NEW ;; +;;NEW ;; GET-ENV +;;NEW ;; +;;NEW (define (get-env obj key) +;;NEW ;; This function either searches inside an a-list or a container +;;NEW (cond +;;NEW ((pair? obj) (let ((c (assq key obj))) +;;NEW (and (pair? c) (cadr c)))) +;;NEW ((container? obj) (get-env (slot-ref obj 'env) key)) +;;NEW (else #f))) +;;NEW + + + + +;;;; ====================================================================== +;;;; +;;;; A S T +;;;; +;;;; ====================================================================== + +(define-generic ast->string) + + +(define-method ast->string ((ast <top>)) "") +(define-method ast->string ((ast <string>)) ast) +(define-method ast->string ((ast <number>)) (number->string ast)) + +(define-method ast->string ((ast <pair>)) + (let ((out (open-output-string))) + (let Loop ((lst ast)) + (cond + ((null? lst) + (get-output-string out)) + (else + (display (ast->string (car lst)) out) + (unless (null? (cdr lst)) + (display #\space out)) + (Loop (cdr lst))))))) + +(define-method ast->string ((ast <node>)) + (ast->string (slot-ref ast 'body))) + + +;;NEW ;; +;;NEW ;; AST-PARENT +;;NEW ;; +;;NEW (define (ast-parent n) +;;NEW (slot-ref n 'parent)) +;;NEW +;;NEW ;; +;;NEW ;; MARKUP-PARENT +;;NEW ;; +;;NEW (define (markup-parent m) +;;NEW (let ((p (slot-ref m 'parent))) +;;NEW (if (eq? p 'unspecified) +;;NEW (skribe-error 'markup-parent "Unresolved parent reference" m) +;;NEW p))) +;;NEW +;;NEW +;;NEW ;; +;;NEW ;; MARKUP-DOCUMENT +;;NEW ;; +;;NEW (define (markup-document m) +;;NEW (let Loop ((p m) +;;NEW (l #f)) +;;NEW (cond +;;NEW ((is-markup? p 'document) p) +;;NEW ((or (eq? p 'unspecified) (not p)) l) +;;NEW (else (Loop (slot-ref p 'parent) p))))) +;;NEW +;;NEW ;; +;;NEW ;; MARKUP-CHAPTER +;;NEW ;; +;;NEW (define (markup-chapter m) +;;NEW (let loop ((p m) +;;NEW (l #f)) +;;NEW (cond +;;NEW ((is-markup? p 'chapter) p) +;;NEW ((or (eq? p 'unspecified) (not p)) l) +;;NEW (else (loop (slot-ref p 'parent) p))))) +;;NEW +;;NEW +;;NEW ;;;; ====================================================================== +;;NEW ;;;; +;;NEW ;;;; H A N D L E S +;;NEW ;;;; +;;NEW ;;;; ====================================================================== +;;NEW (define (handle-body h) +;;NEW (slot-ref h 'body)) +;;NEW +;;NEW +;;NEW ;;;; ====================================================================== +;;NEW ;;;; +;;NEW ;;;; F I N D +;;NEW ;;;; +;;NEW ;;;; ====================================================================== +;;NEW (define (find pred obj) +;;NEW (with-debug 4 'find +;;NEW (debug-item "obj=" obj) +;;NEW (let loop ((obj (if (is-a? obj <container>) (container-body obj) obj))) +;;NEW (cond +;;NEW ((pair? obj) +;;NEW (apply append (map (lambda (o) (loop o)) obj))) +;;NEW ((is-a? obj <container>) +;;NEW (debug-item "loop=" obj " " (slot-ref obj 'ident)) +;;NEW (if (pred obj) +;;NEW (list (cons obj (loop (container-body obj)))) +;;NEW '())) +;;NEW (else +;;NEW (if (pred obj) +;;NEW (list obj) +;;NEW '())))))) +;;NEW + +;;NEW ;;;; ====================================================================== +;;NEW ;;;; +;;NEW ;;;; M A R K U P A R G U M E N T P A R S I N G +;;NEW ;;; +;;NEW ;;;; ====================================================================== +;;NEW (define (the-body opt) +;;NEW ;; Filter out the options +;;NEW (let loop ((opt* opt) +;;NEW (res '())) +;;NEW (cond +;;NEW ((null? opt*) +;;NEW (reverse! res)) +;;NEW ((not (pair? opt*)) +;;NEW (skribe-error 'the-body "Illegal body" opt)) +;;NEW ((keyword? (car opt*)) +;;NEW (if (null? (cdr opt*)) +;;NEW (skribe-error 'the-body "Illegal option" (car opt*)) +;;NEW (loop (cddr opt*) res))) +;;NEW (else +;;NEW (loop (cdr opt*) (cons (car opt*) res)))))) +;;NEW +;;NEW +;;NEW +;;NEW (define (the-options opt+ . out) +;;NEW ;; Returns an list made of options.The OUT argument contains +;;NEW ;; keywords that are filtered out. +;;NEW (let loop ((opt* opt+) +;;NEW (res '())) +;;NEW (cond +;;NEW ((null? opt*) +;;NEW (reverse! res)) +;;NEW ((not (pair? opt*)) +;;NEW (skribe-error 'the-options "Illegal options" opt*)) +;;NEW ((keyword? (car opt*)) +;;NEW (cond +;;NEW ((null? (cdr opt*)) +;;NEW (skribe-error 'the-options "Illegal option" (car opt*))) +;;NEW ((memq (car opt*) out) +;;NEW (loop (cdr opt*) res)) +;;NEW (else +;;NEW (loop (cdr opt*) +;;NEW (cons (list (car opt*) (cadr opt*)) res))))) +;;NEW (else +;;NEW (loop (cdr opt*) res))))) +;;NEW + + +) |