(tex-compilation-parse-errors): Check for

invalid filename strings when parsing tex errors (bug#376).

1 files changed, 6 insertions, 1 deletions

diff --git a/lisp/textmodes/tex-mode.el b/lisp/textmodes/tex-mode.el
index 3f5aa2458a5..0a89a34ac45 100644
--- a/lisp/textmodes/tex-mode.el
+++ b/lisp/textmodes/tex-mode.el
@@ -2188,6 +2188,7 @@ for the error messages."
       (let* ((this-error (copy-marker begin-of-error))
              (linenum (string-to-number (match-string 1)))
              (error-text (regexp-quote (match-string 3)))
+             try-filename
              (filename
               ;; Prefer --file-liner-error filename if we have it.
               (or errfilename
@@ -2195,7 +2196,11 @@ for the error messages."
                     (with-syntax-table tex-error-parse-syntax-table
                       (backward-up-list 1)
                       (skip-syntax-forward "(_")
-                      (while (not (file-readable-p (thing-at-point 'filename)))
+                      (while (not 
+                              (and (setq try-filename (thing-at-point
+                                                       'filename))
+                                   (not (string= "" try-filename))
+                                   (file-readable-p try-filename)))
                         (skip-syntax-backward "(_")
                         (backward-up-list 1)
                         (skip-syntax-forward "(_"))