re = /\v\h+<{if \$data\.nowPage>1}>(?:\s+<div.*?<\/div>)+\s+<{\/if}>\R/
str = '<div class="pageContainer">
<div class="pageBox">
<{if $data.nowPage>1}>
<div class="pageArrow pageFirst"><a href="?<{if !empty($data.years)}>y=<{$data.years}><{/if}><{if !empty($data.month)}>&m=<{$data.month}><{/if}>&p=1"><span class="icon arrow-first"></span></a></div>
<div class="pageArrow pagePrev"><a href="?<{if !empty($data.years)}>y=<{$data.years}><{/if}><{if !empty($data.month)}>&m=<{$data.month}><{/if}>&p=<{$data.nowPage-1}>"><span class="icon arrow-left"></span></a></div>
<{/if}>
<{for $i=$data.nowPage-$data.pageFit to $data.totalPage}>
<{if $data.nowPage == ($i)}>
<div class="pageBtn active"><a href="javascript:void(0);"><{$i}></a></div>
<{else if $i>($data.nowPage+$data.pageFit)}>
<div class="pageMore"><span class="icon moreIcon"></span></div>
<{break}>
<{else if $i>0}>
<{if $i==$data.nowPage-$data.pageFit && $i>1}>
<div class="pageMore"><span class="icon moreIcon"></span></div>
<{/if}>
<div class="pageBtn"><a href="?<{if !empty($data.years)}>y=<{$data.years}><{/if}><{if !empty($data.month)}>&m=<{$data.month}><{/if}>&p=<{$i}>"><{$i}></a></div>
<{else}>
<{/if}>
<{/for}>
<{if $data.nowPage<$data.totalPage}>
<div class="pageArrow pageNext"><a href="?<{if !empty($data.years)}>y=<{$data.years}><{/if}><{if !empty($data.month)}>&m=<{$data.month}><{/if}>&p=<{$data.nowPage+1}>"><span class="icon arrow-right"></span></a></div>
<div class="pageArrow pageLast"><a href="?<{if !empty($data.years)}>y=<{$data.years}><{/if}><{if !empty($data.month)}>&m=<{$data.month}><{/if}>&p=<{$data.totalPage}>"><span class="icon arrow-last"></span></a></div>
<{/if}>
</div>
</div>'
subst = ''
result = str.gsub(re, subst)
# Print the result of the substitution
puts result
Please keep in mind that these code samples are automatically generated and are not guaranteed to work. If you find any syntax errors, feel free to submit a bug report. For a full regex reference for Ruby, please visit: http://ruby-doc.org/core-2.2.0/Regexp.html