From 789248bf92f9e6431d83199d3d1c0023b9d25567 Mon Sep 17 00:00:00 2001
From: Jose Antonio Ortega Ruiz <jao@gnu.org>
Date: Fri, 19 Jun 2009 16:52:03 +0200
Subject: Guile: backtrace buttonization.

---
 geiser/xref.scm | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

(limited to 'geiser/xref.scm')

diff --git a/geiser/xref.scm b/geiser/xref.scm
index f00f724..2336fb2 100644
--- a/geiser/xref.scm
+++ b/geiser/xref.scm
@@ -28,7 +28,8 @@
   #:export (symbol-location
             generic-methods
             callers
-            callees)
+            callees
+            find-file)
   #:use-module (geiser utils)
   #:use-module (geiser modules)
   #:use-module (geiser doc)
@@ -90,4 +91,10 @@
     (and obj
          (map procedure-xref (procedure-callees obj)))))
 
+(define (find-file path)
+  (let loop ((dirs %load-path))
+    (if (null? dirs) #f
+        (let ((candidate (string-append (car dirs) "/" path)))
+          (if (file-exists? candidate) candidate (loop (cdr dirs)))))))
+
 ;;; xref.scm ends here
-- 
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