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-rw-r--r--src/guile/skribilo/runtime.scm24
1 files changed, 17 insertions, 7 deletions
diff --git a/src/guile/skribilo/runtime.scm b/src/guile/skribilo/runtime.scm
index bd8497f..da5c525 100644
--- a/src/guile/skribilo/runtime.scm
+++ b/src/guile/skribilo/runtime.scm
@@ -180,13 +180,23 @@
(define (%make-general-string-replace lst)
;; The general version
- (lambda (str)
- (let ((out (open-output-string)))
- (string-for-each (lambda (ch)
- (let ((res (assq ch lst)))
- (display (if res (cadr res) ch) out)))
- str)
- (get-output-string out))))
+ (let ((chars (make-hash-table)))
+
+ ;; Setup a hash table equivalent to LST.
+ (for-each (lambda (chr)
+ (hashq-set! chars (car chr) (cadr chr)))
+ lst)
+
+ ;; Help the GC.
+ (set! lst #f)
+
+ (lambda (str)
+ (let ((out (open-output-string)))
+ (string-for-each (lambda (ch)
+ (let ((res (hashq-ref chars ch #f)))
+ (display (if res res ch) out)))
+ str)
+ (get-output-string out)))))
(define string->html
(%make-general-string-replace '((#\" "&quot;") (#\& "&amp;") (#\< "&lt;")