align-regionsalign-regions is a compiled Lisp function in `
align.el'. (align-regions REGIONS PROPS RULE FUNC) Align the regions specified in REGIONS, a list of cons cells. PROPS describes formatting features specific to the given regions. RULE specifies exactly how to perform the alignments. If FUNC is specified, it will be called with each region that would have been aligned, rather than modifying the text.