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Date: Sun, 20 Jul 2014 12:24:09 +0200
From: Roman Neuhauser <neuhauser@sigpipe.cz>
To: Bart Schaefer <schaefer@brasslantern.com>
Cc: zsh-users@zsh.org
Subject: Re: Several PCRE module oddities
Message-ID: <20140720102409.GS11492@isis.sigpipe.cz>
References: <20140719121937.GN12213@bunkus.org>
 <20140719123158.GO12213@bunkus.org>
 <20140719123620.GP12213@bunkus.org>
 <20140719123645.GQ12213@bunkus.org>
 <140719152116.ZM13686@torch.brasslantern.com>
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# schaefer@brasslantern.com / 2014-07-19 15:21:16 -0700:
> -    if (offset_start < 0 || offset_start >= subject_len)
> +    if (offset_start < 0 ||
> +	(subject_len ? offset_start >= subject_len : offset_start > 0))
>  	ret = PCRE_ERROR_NOMATCH;
>      else
>  	ret = pcre_exec(pcre_pattern, pcre_hints, plaintext, subject_len, offset_start, 0, ovec, ovecsize);

maybe the slightly shorter version?

> -    if (offset_start < 0 || offset_start >= (subject_len ? subject_len : 1))

-- 
roman