Subject: Re: [PATCH 1/2] mailinfo: extract is_from_line from mailsplit

From: Andreas Schwab <[email-masked]>
Date: Sun, 24 Jul 2016 09:37:24 +0200

Eric Wong <[email-masked]> writes:

> diff --git a/mailinfo.c b/mailinfo.c
> index 9f19ca1..0ebd953 100644
> --- a/mailinfo.c
> +++ b/mailinfo.c
> @@ -1035,3 +1035,34 @@ void clear_mailinfo(struct mailinfo *mi)
>  
>  	strbuf_release(&mi->log_message);
>  }
> +
> +int is_from_line(const char *line, int len)
> +{
> +	const char *colon;
> +
> +	if (len < 20 || memcmp("From ", line, 5))
> +		return 0;
> +
> +	colon = line + len - 2;
> +	line += 5;
> +	for (;;) {
> +		if (colon < line)
> +			return 0;
> +		if (*--colon == ':')
> +			break;
> +	}
> +
> +	if (!isdigit(colon[-4]) ||
> +	    !isdigit(colon[-2]) ||
> +	    !isdigit(colon[-1]) ||
> +	    !isdigit(colon[ 1]) ||
> +	    !isdigit(colon[ 2]))
> +		return 0;
> +
> +	/* year */
> +	if (strtol(colon+3, NULL, 10) <= 90)
> +		return 0;
> +
> +	/* Ok, close enough */
> +	return 1;
> +}

Should this be made more strict, like by checking for a space before the
year?

Andreas.

-- 
Andreas Schwab, [email-masked]
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"And now for something completely different."