From a85155f7c411761cfbd75431f265675ae0f394e3 Mon Sep 17 00:00:00 2001 From: Ludovic Courtes Date: Fri, 1 Jul 2005 13:33:34 +0000 Subject: Lots of changes. Too many changes to describe here, among which, moving the `(skribe)' module namespace to `(skribilo)'. This is work in progress. git-archimport-id: lcourtes@laas.fr--2005-mobile/skribilo--devel--1.2--patch-1 --- src/guile/skribe/engine.scm | 249 -------------------------------------------- 1 file changed, 249 deletions(-) delete mode 100644 src/guile/skribe/engine.scm (limited to 'src/guile/skribe/engine.scm') diff --git a/src/guile/skribe/engine.scm b/src/guile/skribe/engine.scm deleted file mode 100644 index 1cac168..0000000 --- a/src/guile/skribe/engine.scm +++ /dev/null @@ -1,249 +0,0 @@ -;;;; -;;;; engines.stk -- Skribe Engines Stuff -;;;; -;;;; Copyright © 2003-2004 Erick Gallesio - I3S-CNRS/ESSI -;;;; -;;;; -;;;; 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: 24-Jul-2003 20:33 (eg) -;;;; Last file update: 28-Oct-2004 21:21 (eg) -;;;; - -(define-module (skribe engine) - :use-module (skribe debug) -; :use-module (skribe eval) - :use-module (skribe writer) - :use-module (skribe types) - - :use-module (oop goops) - :use-module (ice-9 optargs) - - :export (default-engine default-engine-set! - make-engine copy-engine find-engine - engine-custom engine-custom-set! - engine-format? engine-add-writer! - processor-get-engine - push-default-engine pop-default-engine)) - - - - -;;; Module definition is split here because this file is read by the documentation -;;; Should be changed. -;(select-module SKRIBE-ENGINE-MODULE) - -(define *engines* '()) -(define *default-engine* #f) -(define *default-engines* '()) - - -(define (default-engine) - *default-engine*) - - -(define (default-engine-set! e) - (unless (engine? e) - (skribe-error 'default-engine-set! "bad engine ~S" e)) - (set! *default-engine* e) - (set! *default-engines* (cons e *default-engines*)) - e) - - -(define (push-default-engine e) - (set! *default-engines* (cons e *default-engines*)) - (default-engine-set! e)) - -(define (pop-default-engine) - (if (null? *default-engines*) - (skribe-error 'pop-default-engine "Empty engine stack" '()) - (begin - (set! *default-engines* (cdr *default-engines*)) - (if (pair? *default-engines*) - (default-engine-set! (car *default-engines*)) - (set! *default-engine* #f))))) - - -(define (processor-get-engine combinator newe olde) - (cond - ((procedure? combinator) - (combinator newe olde)) - ((engine? newe) - newe) - (else - olde))) - - -(define (engine-format? fmt . e) - (let ((e (cond - ((pair? e) (car e)) - ((engine? *skribe-engine*) *skribe-engine*) - (else (find-engine *skribe-engine*))))) - (if (not (engine? e)) - (skribe-error 'engine-format? "No engine" e) - (string=? fmt (engine-format e))))) - -;;; -;;; MAKE-ENGINE -;;; -(define* (make-engine ident #:key (version 'unspecified) - (format "raw") - (filter #f) - (delegate #f) - (symbol-table '()) - (custom '()) - (info '())) - (let ((e (make :ident ident :version version :format format - :filter filter :delegate delegate - :symbol-table symbol-table - :custom custom :info info))) - ;; store the engine in the global table - (set! *engines* (cons e *engines*)) - ;; return it - e)) - - -;;; -;;; COPY-ENGINE -;;; -(define* (copy-engine ident e #:key (version 'unspecified) - (filter #f) - (delegate #f) - (symbol-table #f) - (custom #f)) - (let ((new (shallow-clone e))) - (slot-set! new 'ident ident) - (slot-set! new 'version version) - (slot-set! new 'filter (or filter (slot-ref e 'filter))) - (slot-set! new 'delegate (or delegate (slot-ref e 'delegate))) - (slot-set! new 'symbol-table (or symbol-table (slot-ref e 'symbol-table))) - (slot-set! new 'customs (or custom (slot-ref e 'customs))) - - (set! *engines* (cons new *engines*)) - new)) - - -;;; -;;; FIND-ENGINE -;;; -(define (%find-loaded-engine id version) - (let Loop ((es *engines*)) - (cond - ((null? es) #f) - ((eq? (slot-ref (car es) 'ident) id) - (cond - ((eq? version 'unspecified) (car es)) - ((eq? version (slot-ref (car es) 'version)) (car es)) - (else (Loop (cdr es))))) - (else (loop (cdr es)))))) - - -(define* (find-engine id #:key (version 'unspecified)) - (with-debug 5 'find-engine - (debug-item "id=" id " version=" version) - - (or (%find-loaded-engine id version) - (let ((c (assq id *skribe-auto-load-alist*))) - (debug-item "c=" c) - (if (and c (string? (cdr c))) - (begin - (skribe-load (cdr c) :engine 'base) - (%find-loaded-engine id version)) - #f))))) - -;;; -;;; ENGINE-CUSTOM -;;; -(define (engine-custom e id) - (let* ((customs (slot-ref e 'customs)) - (c (assq id customs))) - (if (pair? c) - (cadr c) - 'unspecified))) - - -;;; -;;; ENGINE-CUSTOM-SET! -;;; -(define (engine-custom-set! e id val) - (let* ((customs (slot-ref e 'customs)) - (c (assq id customs))) - (if (pair? c) - (set-car! (cdr c) val) - (slot-set! e 'customs (cons (list id val) customs))))) - - -;;; -;;; ENGINE-ADD-WRITER! -;;; -(define (engine-add-writer! e ident pred upred opt before action after class valid) - (define (check-procedure name proc arity) - (cond - ((not (procedure? proc)) - (skribe-error ident "Illegal procedure" proc)) - ((not (equal? (%procedure-arity proc) arity)) - (skribe-error ident - (format #f "Illegal ~S procedure" name) - proc)))) - - (define (check-output name proc) - (and proc (or (string? proc) (check-procedure name proc 2)))) - - ;; - ;; Engine-add-writer! starts here - ;; - (unless (is-a? e ) - (skribe-error ident "Illegal engine" e)) - - ;; check the options - (unless (or (eq? opt 'all) (list? opt)) - (skribe-error ident "Illegal options" opt)) - - ;; check the correctness of the predicate - (check-procedure "predicate" pred 2) - - ;; check the correctness of the validation proc - (when valid - (check-procedure "validate" valid 2)) - - ;; check the correctness of the three actions - (check-output "before" before) - (check-output "action" action) - (check-output "after" after) - - ;; create a new writer and bind it - (let ((n (make - :ident (if (symbol? ident) ident 'all) - :class class :pred pred :upred upred :options opt - :before before :action action :after after - :validate valid))) - (slot-set! e 'writers (cons n (slot-ref e 'writers))) - n)) - -;;;; ====================================================================== -;;;; -;;;; I N I T S -;;;; -;;;; ====================================================================== - -;; A base engine must pre-exist before anything is loaded. In -;; particular, this dummy base engine is used to load the actual -;; definition of base. - -(make-engine 'base :version 'bootstrap) - - -- cgit v1.2.3