Find:
<div class="figure">\r\s\s<img src="images/figures/fig(\d*-\d*)
Replace:
<div class="figure" id="fig\1">\r <img src="images/figures/fig\1
Find:
<div class="maths">\r\s\s<img src="images/equations/equa(\d*-\d*)
Replace:
<div class="maths" id="equa\1">\r <img src="images/equations/equa\1
Find:
<div class="pagefigure">\r\s\s<img src="images/figures/fig(\d*-\d*).svg
Replace:
<div class="pagefigure" id="fig\1">\r <img src="images/figures/fig\1.svg