Cool.  This seems very reasonable.

Just some style nits: The three places where you have
"sanitize_string(", there should be a space between the function name
and the paren.  Relatedly, "for(;*loop;loop++){" should be spaced out
like "for (; *loop; loop++) {".  (Curiously, there seems to be
anti-consensus on whether the brace should be on the same line or the
next, but otherwise the notmuch code is quite consistent about
spacing.)  Also, existing code conventionally uses a variable named
"local" for function-level talloc contexts such as your ctx_quote.

On Sun, May 8, 2011 at 5:14 PM, Florian Friesdorf <f...@chaoflow.net> wrote:
> From: Andreas Amann <a.am...@ucc.ie>
>
> When a Subject field contained encoded CRLF sequences, these sequences
> would appear unfiltered in the output of notmuch search. This confused
> the notmuch emacs interface leading to "Unexpected Output"
> messages. This is now fixed by replacing all characters with ASCII
> code less than 32 with a question mark.
> ---
>  notmuch-search.c |   22 ++++++++++++++++++++--
>  1 files changed, 20 insertions(+), 2 deletions(-)
>
> diff --git a/notmuch-search.c b/notmuch-search.c
> index 5e39511..e7fc41a 100644
> --- a/notmuch-search.c
> +++ b/notmuch-search.c
> @@ -111,6 +111,20 @@ format_item_id_text (unused (const void *ctx),
>     printf ("%s%s", item_type, item_id);
>  }
>
> +static char *
> +sanitize_string(const void *ctx, const char *str)
> +{
> +    char *out, *loop;
> +
> +    loop = out = talloc_strdup (ctx, str);
> +
> +    for(;*loop;loop++){
> +       if ((unsigned char)(*loop) < 32)
> +           *loop = '?';
> +    }
> +    return out;
> +}
> +
>  static void
>  format_thread_text (const void *ctx,
>                    const char *thread_id,
> @@ -120,13 +134,17 @@ format_thread_text (const void *ctx,
>                    const char *authors,
>                    const char *subject)
>  {
> +    void *ctx_quote = talloc_new (ctx);
> +
>     printf ("thread:%s %12s [%d/%d] %s; %s",
>            thread_id,
>            notmuch_time_relative_date (ctx, date),
>            matched,
>            total,
> -           authors,
> -           subject);
> +           sanitize_string(ctx_quote, authors),
> +           sanitize_string(ctx_quote, subject));
> +
> +    talloc_free (ctx_quote);
>  }
>
>  static void
> --
> 1.7.5.1
>
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>
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