I would like match Err in any words(e.g. LastError), but not ErrorMode.<br>(defvar txt-mode-font-lock-keywords<br>&nbsp; `(<br>&nbsp;&nbsp;&nbsp; ;; 文件名<br>&nbsp;&nbsp;&nbsp; (&quot;\\\\\\(\\w+\\.exe\\)&quot; 1 font-lock-keyword-face)<br>&nbsp;&nbsp;&nbsp; ;; IP和版本<br>&nbsp;&nbsp;&nbsp; (&quot;[^0-9]\\([0-9]\\{1,3\\}\\.[0-9]\\{1,3\\}\\.[0-9]\\{1,3\\}\\.[0-9]\\{1,3\\}\\)&quot; 1 font-lock-keyword-face)<br>

&nbsp;&nbsp;&nbsp; ;; Error<br>&nbsp;&nbsp;&nbsp; (&quot;\\&lt;\\([Dd][Bb][Ee][Rr][Rr][Oo][Rr]\\)\\&gt;&quot; 1 font-lock-warning-face)<br>&nbsp;&nbsp;&nbsp; (&quot;\\&lt;\\([Dd][Bb][Ee][Rr][Rr]\\)\\&gt;&quot; 1 font-lock-warning-face)<br>&nbsp;&nbsp;&nbsp; (&quot;\\&lt;\\([Ee][Rr][Rr][Oo][Rr]\\)\\&gt;&quot; 1 font-lock-warning-face)<br>

<span style="color:rgb(255,0,0)">&nbsp;&nbsp;&nbsp; (&quot;\\([Ee][Rr][Rr]\\)\\(?!orMode\\)&quot; 1 font-lock-warning-face)</span><br>&nbsp;&nbsp;&nbsp; (&quot;\\(错误\\)&quot; 1 font-lock-warning-face)<br>&nbsp;&nbsp;&nbsp; (&quot;\\(失败\\)&quot; 1 font-lock-warning-face)<br>

&nbsp;&nbsp;&nbsp; (&quot;\\(严重\\)&quot; 1 font-lock-warning-face)<br>&nbsp;&nbsp;&nbsp; (&quot;\\&lt;\\([Ff][Aa][Ii][Ll][Ee][Dd]\\)\\&gt;&quot; 1 font-lock-warning-face)<br>&nbsp;&nbsp;&nbsp; (&quot;\\&lt;\\([Ff][Aa][Ii][Ll]\\)\\&gt;&quot; 1 font-lock-warning-face)<br>

&nbsp;&nbsp;&nbsp; (&quot;\\&lt;\\([Cc][Aa][Nn]\\s+[Nn][Oo][Tt]\\)\\&gt;&quot; 1 font-lock-warning-face)<br>&nbsp;&nbsp;&nbsp; (&quot;\\&lt;\\([Cc][Aa][Nn]&#39;[Tt]\\)\\&gt;&quot; 1 font-lock-warning-face)<br>&nbsp;&nbsp;&nbsp; (&quot;\\&lt;\\([Ww][Rr][Oo][Nn][Gg]\\)\\&gt;&quot; 1 font-lock-warning-face)<br>

&nbsp;&nbsp;&nbsp; ;; Warning<br>&nbsp;&nbsp;&nbsp; (&quot;\\&lt;\\([Ww][Aa][Rr][Nn][Ii][Nn][Gg]\\)\\&gt;&quot; 1 font-lock-warning-face)<br>&nbsp;&nbsp;&nbsp; (&quot;\\&lt;\\([Ww][Aa][Rr][Nn]\\)\\&gt;&quot; 1 font-lock-warning-face)<br>&nbsp;&nbsp;&nbsp; (&quot;\\(警告\\)&quot; 1 font-lock-warning-face)<br>

&nbsp;&nbsp;&nbsp; ;; Exception<br>&nbsp;&nbsp;&nbsp; (&quot;\\&lt;\\([Ee][Xx][Cc][Ee][Pp][Tt][Ii][Oo][Nn]\\)\\&gt;&quot; 1 font-lock-warning-face)<br>&nbsp;&nbsp;&nbsp; (&quot;\\&lt;\\([Ee][Xx][Cc][Ee][Pp][Tt]\\)\\&gt;&quot; 1 font-lock-warning-face)<br>&nbsp;&nbsp;&nbsp; (&quot;\\(异常\\)&quot; 1 font-lock-warning-face)<br>

&nbsp;&nbsp;&nbsp; )<br>&nbsp; &quot;Basic font lock keywords for txt mode.&nbsp; Highlights keywords.&quot;)<br><br><div class="gmail_quote">2012/2/3 Kevin Rodgers <span dir="ltr">&lt;<a href="mailto:kevin.d.rodgers@gmail.com">kevin.d.rodgers@gmail.com</a>&gt;</span><br>

<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">On 2/2/12 2:45 PM, Tassilo Horn wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
Tim Landscheidt&lt;<a href="mailto:tim@tim-landscheidt.de" target="_blank">tim@tim-<u></u>landscheidt.de</a>&gt; &nbsp;writes:<br>
</blockquote><div class="im">
<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
In Perl, &quot;(?!pattern)&quot; is a zero-width negative look-ahead<br>
assertion. &nbsp;Emacs does not support these AFAIK.<br>
</blockquote>
<br>
I see. &nbsp;So when you do /foo(?!bar)/ in Perl, you&#39;d need to do<br>
&quot;foo\\(?:[^b][^a][^r]\\)&quot; in elisp.<br>
</blockquote>
<br></div>
IIUC, the Perl regex would successfully match &quot;foo&quot; if it were followed by<br>
&quot;far&quot;, but the Emacs regexp would not.<br>
<br>
Maybe \(?:[^b][^a][^r]\) should be \(?:[^b]\|b[^a]\|ba[^r]\)<span class="HOEnZb"><font color="#888888"><br>
<br>
-- <br>
Kevin Rodgers<br>
Denver, Colorado, USA<br>
<br>
<br>
</font></span></blockquote></div><br>