User:Sun Creator/A to An/Regex/Indent

Structure with indent levels. \b(?<=[\s\*\(]|\A) ([Aa]) <-- $1 ---> (?<=a|(?:(?:\.|\n)\s\s?|\A)A) \s\s? ( <-- $2 ---> .(?:'{0,6}"? <-- quotations, italics and bold --->

--\[\[([^\[\]\|]{1,199}\|)?

--(?: <-- match for a letter starting a,e,h,i,o,u ---> ...[aA](?!\b|AA?T?|bogado|ED|FN|fectados|juns|l(?:do|guien\b)|lcalde|LL|MD|n\b|[Nn][Dd]\b|ndaluc|NG|nului|OA|p(?:agar\b|arecer\b|ostar\b|robat\b)|RS|rte(\b|lor\b)|s\b|ssouvi|t\b|tahualpa\b|tenuar|triz|tteint|U\$|UD|ustriei\b|vut\b|WG|ZN) ...|[eE](?!\b|dil\b|gipto|GP|ellas\b|m(?:a\b|igracja|pezar\b)|n(?:gagé|se[nñ]ar|tenderse\b|voyé)|RN|s(?:a\b|fera|pa[nñń]|t([ae]\b|é|os))|scuchar|spaldas|st(ados|ar\b|rada|udia[nr])|t\b|t[eé]\b|TB|u|U(CARE|FOR|LA)|URO?|v(acuar|reilor|rop)|w[abei]|xtranj) ...|h(?:aut[besu]|eir|o(?:rs\sd|ur(\b|g|s|ly))) ...|[iI](?!\b|aij|a[șş]i|DR|greja|[iI]|legal|LS|mmagini\b|n(?:\b|dro\b|dúst|és|glat|nei\b|stitucí|sulté|tegrante|venté)|NR|QD|RR|s(\b|chia\b)|SK|ts?\b|u(dex\b|dice\b|re\b)|[vxVX]\b|XC\b|[\b\d]) ...|[oO](?!ax|bra|cho|[df]\b|ggi|kol[íi]e?\b|lše\b|MR|nda\b|[nN](?:[cC][eE]|e\b|[eE]-?(?:[A-Z]|arm|day|fold|guide|hand|horse|leg|ness|night|off|poll|plus|self|shot|side|sie|time|track|way|world))|O\b|opa|perador\b|r\b|r(?:a(?:[şsș]ului|z\b)|fu\b)|S-9\b|tro\b|ttobre|u\b|uab|uad|ual|ued|uid|uij) ...|u(?!\b|\-|\:|[A-Z]|ad|b[aiou]|c|dev\b|[ef]|ga[ln]|i(n|tz)|iro|k|lu|m\b|n(?:(\s|as?\b|ani|ary)|e(\b|sco)|i\b|i(?:([abBcCfgloOpqstv-]|[dD][aoiy]|[nN]u)|mo|mu)|os\b|ui\b)|ma\b|no\b|r(?:[aeiou]|(l|s)\b)|sb\b|shape|[st][aeiou]|stream|tric|v[aeiru]|ž) <---end of letter u---> --) <-- end of match for a letter --->

.) <-- end of quotations--->

.[^\[\]\|]*\]\]\w*

.)

)

) <-- end of $2 --->

(?<=\b(\S|\s){1,99} <--Look back---> .(?<! <---Avoid these before ---> --\b(?:[Aa](baten|cceso|ct|di[oó]s|dvanced|n\b|[nñ]o|umenta)|[Bb](attery|enefician)|[Cc](ategory\:?|e|hromogranin?|lass|om|omp(any|osition|ound)|um|uarto|yclosporine)|[Dd]([aáàâăåeêèé]|alla|e[nst]|enuncian|espedida|[iîìíòôóuùûú]|ivision|ouble)|[EÉe](\b|cusa|insatzgruppe|n|ntonces|ntregó|ntrevista|s|st|t|xtradita(do)?|xitos)|[Ff](acilitar|az|ormula|ui|utbol)|[Gg]r(ade|oup)|[Hh]omenaje|[iI](l\b|nna|nterpreta|nvita|storie|terum)|[Ll](ist|íderes|legará|levan)|[Jj](r|unto|unior)|[Ll](abe|igada|ipid|ui|uxe)|[Mm](as|\.I|odel|onte|ovid[ao]|ound)|[Nn](bsp|ei|ous|ônibus)|[Oo](kina\}\}|lza)|[Pp](\.|ara|art|ese|iù|lan|oint|ro|resenta)|[Qq](\sand|ue|ui)|[Rr](ec(ibe|usa)|ei|oi)|[Ss](\.|eason|erie|ervir|ic\s?\|?|ide|ingle|obre|urt)|[Tt](he|oda|ren|riple|ype)|[Uu](hlie|n[ade])|[Vv](as?|ada|eche|encer?|enda|itamin|iva(ce)?|ojsko|ol(ta|vamos|ver)|oy|uel(a|e|ta|to|u|va|ve))|[Yy]\b|[ZŽz](eit|ivoty)) --\W?\s?[aA]\s?\2 .) <-- end of avoid before--> ) <--end of lookback--->