我正在尝试使用正则表达式从下面的XML中选择常量，其中常量是COM_CCJET_FORM_ * _NAME 除非常量包含FIRST_NAME或LAST_NAME
<field name="name" type="text" filter="safehtml" class="input-xxlarge input-large-text"
label="COM_CCJET_FORM_LBL_WORKORDER_NAME" description="COM_CCJET_FORM_DESC_WORKORDER_NAME" required="true"
hint="COM_CCJET_FORM_LBL_WORKORDER_NAME" />
<field name="first_name" type="text"
label="COM_CCJET_FORM_LBL_CONTRACTOR_FIRST_NAME" description="COM_CCJET_FORM_DESC_CONTRACTOR_FIRST_NAME"
required="true" menu_published="0" filter="string" directory_stripext="true"
directory_hidenode="true" directory_hidedefault="true"
alias_generator="2135354" heading="h4" close="true" option_on="Yes"
option_off="Yes" />
我可以使用正则表达式获得COM_CCJET_FORM _ * _ NAME的任何内容：
COM_CCJET_(.*?)_NAME
但我无法弄清楚如何告诉正则表达式排除＆＃34; FIRST＆＃34;