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-;;;;
-;;;; prog.stk -- All the stuff for the prog markup
-;;;;
-;;;; Copyright © 2003 Erick Gallesio - I3S-CNRS/ESSI <eg@essi.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: 31-Aug-2003 23:42 (eg)
-;;;; Last file update: 22-Oct-2003 19:35 (eg)
-;;;;
-
-(define-module SKRIBE-PROG-MODULE
- (export make-prog-body resolve-line)
-
-;;; ======================================================================
-;;;
-;;; COMPATIBILITY
-;;;
-;;; ======================================================================
-(define pregexp-match regexp-match)
-(define pregexp-replace regexp-replace)
-(define pregexp-quote regexp-quote)
-
-
-(define (node-body-set! b v)
- (slot-set! b 'body v))
-
-;;;
-;;; FIXME: Tout le module peut se factoriser
-;;; définir en bigloo node-body-set
-
-
-;*---------------------------------------------------------------------*/
-;* *lines* ... */
-;*---------------------------------------------------------------------*/
-(define *lines* (make-hashtable))
-
-;*---------------------------------------------------------------------*/
-;* make-line-mark ... */
-;*---------------------------------------------------------------------*/
-(define (make-line-mark m lnum b)
- (let* ((ls (number->string lnum))
- (n (list (mark ls) b)))
- (hashtable-put! *lines* m n)
- n))
-
-;*---------------------------------------------------------------------*/
-;* resolve-line ... */
-;*---------------------------------------------------------------------*/
-(define (resolve-line id)
- (hashtable-get *lines* id))
-
-;*---------------------------------------------------------------------*/
-;* extract-string-mark ... */
-;*---------------------------------------------------------------------*/
-(define (extract-string-mark line mark regexp)
- (let ((m (pregexp-match regexp line)))
- (if (pair? m)
- (values (substring (car m)
- (string-length mark)
- (string-length (car m)))
- (pregexp-replace regexp line ""))
- (values #f line))))
-
-;*---------------------------------------------------------------------*/
-;* extract-mark ... */
-;* ------------------------------------------------------------- */
-;* Extract the prog mark from a line. */
-;*---------------------------------------------------------------------*/
-(define (extract-mark line mark regexp)
- (cond
- ((not regexp)
- (values #f line))
- ((string? line)
- (extract-string-mark line mark regexp))
- ((pair? line)
- (let loop ((ls line)
- (res '()))
- (if (null? ls)
- (values #f line)
- (receive (m l)
- (extract-mark (car ls) mark regexp)
- (if (not m)
- (loop (cdr ls) (cons l res))
- (values m (append (reverse! res) (cons l (cdr ls)))))))))
- ((node? line)
- (receive (m l)
- (extract-mark (node-body line) mark regexp)
- (if (not m)
- (values #f line)
- (begin
- (node-body-set! line l)
- (values m line)))))
- (else
- (values #f line))))
-
-;*---------------------------------------------------------------------*/
-;* split-line ... */
-;*---------------------------------------------------------------------*/
-(define (split-line line)
- (cond
- ((string? line)
- (let ((l (string-length line)))
- (let loop ((r1 0)
- (r2 0)
- (res '()))
- (cond
- ((= r2 l)
- (if (= r1 r2)
- (reverse! res)
- (reverse! (cons (substring line r1 r2) res))))
- ((char=? (string-ref line r2) #\Newline)
- (loop (+ r2 1)
- (+ r2 1)
- (if (= r1 r2)
- (cons 'eol res)
- (cons* 'eol (substring line r1 r2) res))))
- (else
- (loop r1
- (+ r2 1)
- res))))))
- ((pair? line)
- (let loop ((ls line)
- (res '()))
- (if (null? ls)
- res
- (loop (cdr ls) (append res (split-line (car ls)))))))
- (else
- (list line))))
-
-;*---------------------------------------------------------------------*/
-;* flat-lines ... */
-;*---------------------------------------------------------------------*/
-(define (flat-lines lines)
- (apply append (map split-line lines)))
-
-;*---------------------------------------------------------------------*/
-;* collect-lines ... */
-;*---------------------------------------------------------------------*/
-(define (collect-lines lines)
- (let loop ((lines (flat-lines lines))
- (res '())
- (tmp '()))
- (cond
- ((null? lines)
- (reverse! (cons (reverse! tmp) res)))
- ((eq? (car lines) 'eol)
- (cond
- ((null? (cdr lines))
- (reverse! (cons (reverse! tmp) res)))
- ((and (null? res) (null? tmp))
- (loop (cdr lines)
- res
- '()))
- (else
- (loop (cdr lines)
- (cons (reverse! tmp) res)
- '()))))
- (else
- (loop (cdr lines)
- res
- (cons (car lines) tmp))))))
-
-;*---------------------------------------------------------------------*/
-;* make-prog-body ... */
-;*---------------------------------------------------------------------*/
-(define (make-prog-body src lnum-init ldigit mark)
- (define (int->str i rl)
- (let* ((s (number->string i))
- (l (string-length s)))
- (if (= l rl)
- s
- (string-append (make-string (- rl l) #\space) s))))
-
- (let* ((regexp (and mark
- (format "~a[-a-zA-Z_][-0-9a-zA-Z_]+"
- (pregexp-quote mark))))
- (src (cond
- ((not (pair? src)) (list src))
- ((and (pair? (car src)) (null? (cdr src))) (car src))
- (else src)))
- (lines (collect-lines src))
- (lnum (if (integer? lnum-init) lnum-init 1))
- (s (number->string (+ (if (integer? ldigit)
- (max lnum (expt 10 (- ldigit 1)))
- lnum)
- (length lines))))
- (cs (string-length s)))
- (let loop ((lines lines)
- (lnum lnum)
- (res '()))
- (if (null? lines)
- (reverse! res)
- (receive (m l)
- (extract-mark (car lines) mark regexp)
- (let ((n (new markup
- (markup '&prog-line)
- (ident (and lnum-init (int->str lnum cs)))
- (body (if m (make-line-mark m lnum l) l)))))
- (loop (cdr lines)
- (+ lnum 1)
- (cons n res))))))))
-
-) \ No newline at end of file