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|
;*=====================================================================*/
;* serrano/prgm/project/skribe/src/bigloo/eval.scm */
;* ------------------------------------------------------------- */
;* Author : Manuel Serrano */
;* Creation : Wed Jul 23 12:48:11 2003 */
;* Last change : Wed May 18 15:52:01 2005 (serrano) */
;* Copyright : 2003-05 Manuel Serrano */
;* ------------------------------------------------------------- */
;* The Skribe evaluator */
;*=====================================================================*/
;*---------------------------------------------------------------------*/
;* The module */
;*---------------------------------------------------------------------*/
(module skribe_eval
(option (set! dsssl-symbol->keyword
(lambda (s)
(string->keyword
(string-append ":" (symbol->string s))))))
(include "debug.sch")
(import skribe_param
skribe_types
skribe_resolve
skribe_verify
skribe_output
skribe_read
skribe_lib
skribe_engine)
(export (skribe-eval-location)
(skribe-error ::obj ::obj ::obj)
(skribe-type-error ::obj ::obj ::obj ::bstring)
(skribe-warning ::int . obj)
(skribe-warning/ast ::int ::%ast . obj)
(skribe-message ::bstring . obj)
(skribe-load ::bstring #!rest opt #!key engine path)
(skribe-load-options)
(skribe-include ::bstring . rest)
(skribe-open-bib-file ::bstring ::obj)
(skribe-eval-port ::input-port ::obj #!key env)
(skribe-eval ::obj ::%engine #!key env)
(skribe-path::pair-nil)
(skribe-path-set! ::obj)
(skribe-image-path::pair-nil)
(skribe-image-path-set! ::obj)
(skribe-bib-path::pair-nil)
(skribe-bib-path-set! ::obj)
(skribe-source-path::pair-nil)
(skribe-source-path-set! ::obj)))
;*---------------------------------------------------------------------*/
;* skribe-eval-location ... */
;*---------------------------------------------------------------------*/
(define (skribe-eval-location)
(evmeaning-location))
;*---------------------------------------------------------------------*/
;* skribe-error ... */
;*---------------------------------------------------------------------*/
(define (skribe-error proc msg obj)
(if (ast? obj)
(skribe-ast-error proc msg obj)
(error/evloc proc msg obj)))
;*---------------------------------------------------------------------*/
;* skribe-type-error ... */
;*---------------------------------------------------------------------*/
(define (skribe-type-error proc msg obj etype)
(let ((ty (if (%markup? obj)
(format "~a#~a" (markup-markup obj) (markup-ident obj))
(find-runtime-type obj))))
(skribe-error proc
(bigloo-type-error-msg msg etype ty)
obj)))
;*---------------------------------------------------------------------*/
;* skribe-ast-error ... */
;*---------------------------------------------------------------------*/
(define (skribe-ast-error proc msg obj)
(let ((l (ast-loc obj))
(shape (if (%markup? obj)
(%markup-markup obj)
(find-runtime-type obj))))
(if (location? l)
(error/location proc msg shape (location-file l) (location-pos l))
(error/evloc proc msg shape))))
;*---------------------------------------------------------------------*/
;* error/evloc ... */
;*---------------------------------------------------------------------*/
(define (error/evloc proc msg obj)
(let ((l (evmeaning-location)))
(if (location? l)
(error/location proc msg obj (location-file l) (location-pos l))
((begin error) proc msg obj))))
;*---------------------------------------------------------------------*/
;* skribe-warning ... */
;*---------------------------------------------------------------------*/
(define (skribe-warning level . obj)
(if (>= *skribe-warning* level)
(let ((l (evmeaning-location)))
(if (location? l)
(apply warning/location (location-file l) (location-pos l) obj)
(apply warning obj)))))
;*---------------------------------------------------------------------*/
;* skribe-warning/ast ... */
;*---------------------------------------------------------------------*/
(define (skribe-warning/ast level ast . obj)
(if (>= *skribe-warning* level)
(let ((l (%ast-loc ast)))
(if (location? l)
(apply warning/location (location-file l) (location-pos l) obj)
(apply skribe-warning level obj)))))
;*---------------------------------------------------------------------*/
;* skribe-message ... */
;*---------------------------------------------------------------------*/
(define (skribe-message fmt . obj)
(if (> *skribe-verbose* 0)
(apply fprintf (current-error-port) fmt obj)))
;*---------------------------------------------------------------------*/
;* *skribe-loaded* ... */
;* ------------------------------------------------------------- */
;* This hash table stores the list of loaded files in order */
;* to avoid one file to be loaded twice. */
;*---------------------------------------------------------------------*/
(define *skribe-loaded* (make-hashtable))
;*---------------------------------------------------------------------*/
;* *skribe-load-options* ... */
;*---------------------------------------------------------------------*/
(define *skribe-load-options* '())
;*---------------------------------------------------------------------*/
;* skribe-load ... */
;*---------------------------------------------------------------------*/
(define (skribe-load file #!rest opt #!key engine path)
(with-debug 4 'skribe-load
(debug-item " engine=" engine)
(debug-item " path=" path)
(debug-item " opt" opt)
(let* ((ei (cond
((not engine)
*skribe-engine*)
((engine? engine)
engine)
((not (symbol? engine))
(skribe-error 'skribe-load "Illegal engine" engine))
(else
engine)))
(path (cond
((not path)
(skribe-path))
((string? path)
(list path))
((not (and (list? path) (every? string? path)))
(skribe-error 'skribe-load "Illegal path" path))
(else
path)))
(filep (find-file/path file path)))
(set! *skribe-load-options* opt)
(if (and (string? filep) (file-exists? filep))
(if (not (hashtable-get *skribe-loaded* filep))
(begin
(hashtable-put! *skribe-loaded* filep #t)
(cond
((>fx *skribe-verbose* 1)
(fprint (current-error-port)
" [loading file: " filep " " opt "]"))
((>fx *skribe-verbose* 0)
(fprint (current-error-port)
" [loading file: " filep "]")))
(with-input-from-file filep
(lambda ()
(skribe-eval-port (current-input-port) ei)))))
(skribe-error 'skribe-load
(format "Can't find file `~a' in path" file)
path)))))
;*---------------------------------------------------------------------*/
;* skribe-load-options ... */
;*---------------------------------------------------------------------*/
(define (skribe-load-options)
*skribe-load-options*)
;*---------------------------------------------------------------------*/
;* evaluate ... */
;*---------------------------------------------------------------------*/
(define (evaluate exp)
(try (eval exp)
(lambda (a p m o)
(evmeaning-notify-error p m o)
(flush-output-port (current-error-port)))))
;*---------------------------------------------------------------------*/
;* skribe-include ... */
;*---------------------------------------------------------------------*/
(define (skribe-include file . rest)
(let* ((path (cond
((or (null? rest) (null? (cdr rest)))
(skribe-path))
((not (every? string? (cdr rest)))
(skribe-error 'skribe-include "Illegal path" (cdr rest)))
(else
(cdr rest))))
(filep (find-file/path file (if (null? path) (skribe-path) path))))
(if (and (string? filep) (file-exists? filep))
(begin
(if (>fx *skribe-verbose* 0)
(fprint (current-error-port)
" [including file: " filep "]"))
(with-input-from-file filep
(lambda ()
(let loop ((exp (skribe-read (current-input-port)))
(res '()))
(if (eof-object? exp)
(if (and (pair? res) (null? (cdr res)))
(car res)
(reverse! res))
(loop (skribe-read (current-input-port))
(cons (evaluate exp) res)))))))
(skribe-error 'skribe-include
(format "Can't find file `~a 'in path" file)
path))))
;*---------------------------------------------------------------------*/
;* skribe-open-bib-file ... */
;*---------------------------------------------------------------------*/
(define (skribe-open-bib-file file command)
(let ((filep (find-file/path file *skribe-bib-path*)))
(if (string? filep)
(begin
(if (>fx *skribe-verbose* 0)
(fprint (current-error-port) " [loading bib: " filep "]"))
(open-input-file (if (string? command)
(string-append "| "
(format command filep))
filep)))
(begin
(skribe-warning 1
'bibliography
"Can't find bibliography -- " file)
#f))))
;*---------------------------------------------------------------------*/
;* skribe-eval-port ... */
;*---------------------------------------------------------------------*/
(define (skribe-eval-port port ei #!key (env '()))
(with-debug 2 'skribe-eval-port
(debug-item "ei=" ei)
(let ((e (if (symbol? ei) (find-engine ei) ei)))
(debug-item "e=" e)
(if (not (%engine? e))
(skribe-error 'find-engine "Can't find engine" ei)
(let loop ((exp (skribe-read port)))
(with-debug 10 'skribe-eval-port
(debug-item "exp=" exp))
(if (not (eof-object? exp))
(begin
(skribe-eval (evaluate exp) e :env env)
(loop (skribe-read port)))))))))
;*---------------------------------------------------------------------*/
;* skribe-eval ... */
;*---------------------------------------------------------------------*/
(define (skribe-eval a e #!key (env '()))
(with-debug 2 'skribe-eval
(debug-item "a=" a " e=" (%engine-ident e))
(let ((a2 (resolve! a e env)))
(debug-item "resolved a=" a)
(let ((a3 (verify a2 e)))
(debug-item "verified a=" a3)
(output a3 e)))))
;*---------------------------------------------------------------------*/
;* skribe-path ... */
;*---------------------------------------------------------------------*/
(define (skribe-path)
*skribe-path*)
;*---------------------------------------------------------------------*/
;* skribe-path-set! ... */
;*---------------------------------------------------------------------*/
(define (skribe-path-set! path)
(if (not (and (list? path) (every? string? path)))
(skribe-error 'skribe-path-set! "Illegal path" path)
(set! *skribe-path* path)))
;*---------------------------------------------------------------------*/
;* skribe-image-path ... */
;*---------------------------------------------------------------------*/
(define (skribe-image-path)
*skribe-image-path*)
;*---------------------------------------------------------------------*/
;* skribe-image-path-set! ... */
;*---------------------------------------------------------------------*/
(define (skribe-image-path-set! path)
(if (not (and (list? path) (every? string? path)))
(skribe-error 'skribe-image-path-set! "Illegal path" path)
(set! *skribe-image-path* path)))
;*---------------------------------------------------------------------*/
;* skribe-bib-path ... */
;*---------------------------------------------------------------------*/
(define (skribe-bib-path)
*skribe-bib-path*)
;*---------------------------------------------------------------------*/
;* skribe-bib-path-set! ... */
;*---------------------------------------------------------------------*/
(define (skribe-bib-path-set! path)
(if (not (and (list? path) (every? string? path)))
(skribe-error 'skribe-bib-path-set! "Illegal path" path)
(set! *skribe-bib-path* path)))
;*---------------------------------------------------------------------*/
;* skribe-source-path ... */
;*---------------------------------------------------------------------*/
(define (skribe-source-path)
*skribe-source-path*)
;*---------------------------------------------------------------------*/
;* skribe-source-path-set! ... */
;*---------------------------------------------------------------------*/
(define (skribe-source-path-set! path)
(if (not (and (list? path) (every? string? path)))
(skribe-error 'skribe-source-path-set! "Illegal path" path)
(set! *skribe-source-path* path)))
|
