Make ph between vowels long in Elvish

According to Appendix E of The Lord of the Rings, ⟨ph⟩ stands for /f/
when final (because ⟨f⟩ is pronounced as /v/ in that position), and
otherwise is used instead of ⟨f⟩ either because it’s derived from ⟨p⟩
(in which case it’s presumably pronounced just like ⟨f⟩), or to
represent an especially long /f/. We can’t really tell which case we
have, but from the Omikhleia Sindarin dictionary [1], it appears that
all the long ⟨ph⟩’s are between two vowels, and all the short ones have
at least one adjacent consonant, so let’s use that as a rule and hope it
works out. (The Ambar Eldaron Quenya dictionary [2] is less easily
searchable, so I’m just hoping that this rule works reasonably well for
both languages.)

[1]: https://www.jrrvf.com/hisweloke/sindar/index.html
[2]: https://ambar-eldaron.com/telechargements/quenya-engl-A4.pdf

dictsource/qya_rules

@@ -108,6 +108,7 @@
 
 .group ph
 	ph	f
+	A) ph (A	f:
 
 .group qu
 	qu	kw

dictsource/sjn_rules

@@ -113,6 +113,7 @@
 
 .group ph
 	ph	f
+	A) ph (A	f:
 
 // q does not occur in Sindarin
 

tests/language-pronunciation.test

@@ -194,7 +194,7 @@ test_phon sd "s'Indhi b'o:li; 'Ind.o: jo:R'Vpi xa:nd'a:n s'a~: t[a:l'Vq R,@k#@nd
 J'Vnhn t['e: ,aRb'i: bo:l'i:;a J'o: b'I t[@m'a:m v'Vd.o: as'VR ,a:he:
 h'Ina v'aqt s'Indhi b'o:li s'Indh J'e: m'Vk# b'o:li_! 'ae~ d,@f@t['VRi z@b'a:n ,a:he:" "سنڌي ٻولي انڊو يورپي خاندان سان تعلق رکندڙ آريائي ٻولي آھي، جنھن تي عربي ٻوليءَ جو بہ تمام وڏو اثر آهي. هن وقت سنڌي ٻولي سنڌ جي مک ٻولي ۽ دفتري زبان آھي." "Arab"
 test_phon si "t'aw@t st#'a:n@ k'i:p@j,@kin w'a:rta: w'u: s'ul.u p'ipiri:m s'ah@ d'e:s@p,a:l@n@ p'akS@ k r'ija:k,a:ri:n 'at@r@ '&tiwu: g'&t.um h'e:tuwen 'ek 'ajeku m'ij@gos k'i:p@ d'eneku t'uwa:l@ l'aba: t'ibe:" "තවත් ස්ථාන කීපයකින් වාර්තා වූ සුළු පිපිරීම් සහ දේශපාලන පක්ෂ ක්‍රියාකාරීන් අතර ඇතිවූ ගැටුම් හේතුවෙන් එක් අයෙකු මියගොස් කීප දෙනෙකු තුවාල ලබා තිබේ." "Sinh"
-test_phon sjn "'alf 'aman 'amaRT 'amon 'aRag,oRn aRn'OIdi;,ad bel'eRi;,and b'oRom,iR bRag'ollax bR'eTil bRiT'ombaR k'aIR kaR'aDRas k,elebR'i:an kRiss'aIgRim d'eneT,oR dR'eNgist d'u::n ekT'eli;,on 'emyn eR'i;ad,oR f'ean,oR f'iNgon fiNg'olfin fin'aRfin f'oRox,el g'alaD,on gal'adRi;,el gR'ond gw'aIhiR j'aRwaIn j'oReT iT'ili;,en loTl'o:Ri;,en miT'eITel miTR'andiR moR'annon m'oRi;,a osg'ili;,aT pal'anti:R p,alant'i:Ri pel'ennoR p,eRi;'annaT sil'ivRen ToR'ondoR" "alph Aman Amarth Amon Aragorn Arnoediad Beleriand Boromir Bragollach Brethil Brithombar Cair Caradhras Celebrían Crissaegrim Denethor Drengist dûn Ecthelion Emyn Eriador Fëanor Fingon Fingolfin Finarfin Forochel Galadhon Galadriel Grond Gwaihir Iarwain Ioreth Ithilien Lothlórien Mitheithel Mithrandir Morannon Moria Osgiliath Palantír Palantíri Pelennor Periannath Silivren Thorondor" "Sindarin"
+test_phon sjn "'alf 'aman 'amaRT 'amon 'aRag,oRn aRn'OIdi;,ad bel'eRi;,and b'oRom,iR bRag'ollax bR'eTil bRiT'ombaR k'aIR kaR'aDRas k,elebR'i:an kRiss'aIgRim d'eneT,oR dR'eNgist d'u::n ekT'eli;,on 'emyn eR'i;ad,oR f'ean,oR f'iNgon fiNg'olfin fin'aRfin f'oRox,el g'alaD,on gal'adRi;,el gR'ond gw'aIhiR j'aRwaIn j'oReT iT'ili;,en loTl'o:Ri;,en miT'eITel miTR'andiR moR'annon m'oRi;,a oR'offin osg'ili;,aT pal'anti:R p,alant'i:Ri pel'ennoR p,eRi;'annaT sil'ivRen ToR'ondoR" "alph Aman Amarth Amon Aragorn Arnoediad Beleriand Boromir Bragollach Brethil Brithombar Cair Caradhras Celebrían Crissaegrim Denethor Drengist dûn Ecthelion Emyn Eriador Fëanor Fingon Fingolfin Finarfin Forochel Galadhon Galadriel Grond Gwaihir Iarwain Ioreth Ithilien Lothlórien Mitheithel Mithrandir Morannon Moria Orophin Osgiliath Palantír Palantíri Pelennor Periannath Silivren Thorondor" "Sindarin"
 test_phon sk "k'r:d;el^ St;'astni:Q d;'atl^ow 'utSi: pR'i;u:st;i: v'a:hu m'l:kveho k'on^a 'ophRi:zat; k'uoRu_:_: a ZR'at; tS'eRstve: m'eso
 p'et;ti:Zdn^,ove: v'l:tSata: n'eRvo:zn^e St;'ekaju: n'amu,ojho d;'atl^a_! v_ t'r:n^i:" "Kŕdeľ šťastných ďatľov učí pri ústí Váhu mĺkveho koňa obhrýzať kôru a žrať čerstvé mäso. Päťtýždňové vĺčatá nervózne štekajú na môjho ďatľa v tŕní." "Latn"
 test_phon sl "xiSn'i:tSin bR'a:tEts uzg'a:ja p'o:wZE p'o:t fik'u:sOm" "Hišničin bratec vzgaja polže pod fikusom." "Latn"