[Guile-commits] GNU Guile branch, stable-2.0, updated. v2.0.0-46-gdcb7c7d

[Andy Wingo]

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- Log -----------------------------------------------------------------
commit dcb7c7ddf5dc2c7e32720ed91c6d7bbed7f7455a
Author: Andy Wingo <address@hidden>
Date:   Sun Feb 27 23:26:08 2011 +0100

    flush all input on a read error
    
    * module/system/repl/repl.scm (flush-all-input): New helper.
      (prompting-meta-read): Flush all input on a read error, as we could be
      within some expression or a string or something.

-----------------------------------------------------------------------

Summary of changes:
 module/system/repl/repl.scm |    8 ++++++++
 1 files changed, 8 insertions(+), 0 deletions(-)

diff --git a/module/system/repl/repl.scm b/module/system/repl/repl.scm
index 6eb29be..0d7aca7 100644
--- a/module/system/repl/repl.scm
+++ b/module/system/repl/repl.scm
@@ -54,6 +54,13 @@
                  meta-command-token)
                 (else (read port env))))))))
         
+(define (flush-all-input)
+  (if (and (char-ready?)
+           (not (eof-object? (peek-char))))
+      (begin
+        (read-char)
+        (flush-all-input))))
+
 ;; repl-reader is a function defined in boot-9.scm, and is replaced by
 ;; something else if readline has been activated. much of this hoopla is
 ;; to be able to re-use the existing readline machinery.
@@ -72,6 +79,7 @@
         (else
          (format (current-output-port) "While reading expression:\n")
          (print-exception (current-output-port) #f key args)
+         (flush-all-input)
          *unspecified*)))))
 
 


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