From 81c628656996d5e303be1f934610dbfd13860c6d Mon Sep 17 00:00:00 2001
From: Doctor Dan <8849311+DoctorDan1986@users.noreply.github.com>
Date: Sun, 11 Oct 2026 16:02:16 -0400
Subject: [PATCH] Add native \uparrow and \downarrow TXF3 arrow symbols

---
 assets/TeXFonts.8xv    | Bin 8795 -> 8851 bytes
 assets/TeXScrpt.8xv    | Bin 5907 -> 5933 bytes
 include/texfont.h      |   4 ++++
 src/tex/tex_symbols.c  |   2 ++
 tests/test_symbols.c   |   2 ++
 tools/process_fonts.py |   4 +++-
 6 files changed, 11 insertions(+), 1 deletion(-)
 mode change 100755 => 100644 tools/process_fonts.py

diff --git a/assets/TeXFonts.8xv b/assets/TeXFonts.8xv
index 656f2f7ac5cb3d52cc3a41ea0278d2728faef4de..a37aea97df0e77128755c9ba2133442cf71294b0 100644
GIT binary patch
delta 636
zcma)3J8M)y7@fI~`M#OCdv{qA1G$fxEEefh@X;Dj!=|zbqNzlPc1lny!MiDJgO4&P
z45Smmu$2h9zd*slLcvN=1O<^577P7m#_i=chx7Q(8SeYj56|2?KC{+qv3_rMb^XHG
z>(_4HV1s^ddB1-Gy0;3%oQ+v>e+q`1z@z3#k!6~A`KrjY=3@rm3hfxK^0JkA=5R?K
zKIV9?R8ER;!%37<56V{V%<@?Y=zw@#N=fDjzm$29+Ld+;6N^=+<0Q3O`BWrtH&v*|
zol3d-2%cB1%nij)RTw0aS}Bq^+FJU0u~h3|zEn#GVrc5NKP?~EVGzCv=2-j;W{zEh
z2yDVqYXIE(_?T$`Jhfy{IttcE^UPIpx2YBG63{NTZ6s0|i}#I4ojG|)<~9NG&LDW{
zyGav&dSde2-4R`@qytIM{;NM?QK~=0EL&(mu?ZI!ZD>udSQNmiY{QCFv0p5?W2Mih
zThsiG)!LtaI+aEw`H62WgeQKq^vC#bCO+Fveu#gSxV|tqJI8;p?8Cy$frA9pfIVWv
iEq%0eG8)9A`Mup0e(L|e-Ie*hcoYp^6x$-YeEu)FC4)Zz

delta 565
zcmXw0zfTlF6rS1Jo%d#DZ}-qcNOpE-ZbM<C#6lA~69r;nM+~tATP=_Ts>4`7MKmOm
zP!K{vrBQRy#>(Cr6Z{7Vl@=!wP4LYubYH%oFL_(jKkmP}-L3038>vU<p3KiYd-{Bd
zt&P<A#|L*{@EUlub(df1FBfU5*^tRMMXEI)GWb+z&v12Ew9~+xdJi9R95>2K5l$JB
zD5V~ocIM6Ug#q+HY#S-b9N`C(HPUyZJ;TIL)9H9gnKGmzd9PnK^SD?lKOe!%vYlpB
zjql3lAn~nKiX@K5r3~{zR=P1?ucQYpn62_qEtjh1Al#{fxh1|dW{yV{BCs=-99IDT
z`qsay4-hD6QF;n$d%;Xv#GF>)Apz}U3sxeHvDT^;i8sgVWX=hQeTxvJ&o+re^;er^
zzF8buB|V5ws3&awp)GYzOzxl$ik)%MbIode)1d%PV^dBfiv4EsjFTasJaQNLMW=PB
zUb&PuND3$JI%qcDI{Fy@%fx%v$tL)T#2dY_(J}sur3bz4)oTRQ8rx%oO?|5~I4yQW
H)Sdkgi&b>N

diff --git a/assets/TeXScrpt.8xv b/assets/TeXScrpt.8xv
index 598e0682b46ed0a27972ec29c2e0d2c8020d278a..b5911fd677d2530f305ca90ae7fb6d91c6c68023 100644
GIT binary patch
delta 606
zcmXwzJt($O9LE3W<A2V%?>iqkA7$|{kjbLw-QL0?i-jVaWRj9>=)q(mWt8E4OHw2~
zn?>17QdUWiO$MTTq?~i^`(Ez*>i@gWbzQrCCw)6r^X8hM;q3VA<k-yO!V;`C+{4+(
zAK5me1*Y%;Y@rnObxCM#RV$_ZU2FwGJ^=T%O8kY$Q=R0Oi{gSeT1JEoodf~$T_<TU
zi^L!X!L<>>=Mb!z0`(gygP9MSEDIhvQKGq;$?I|1#Au3JCQ)H1{woka%ij~cFd}TF
z{5nSj?~RbYjN-FNv(PG-jmwCzwlH_wSV6FAg+TZQ_SeR(K!<G&F`h;}3mb9Dvv`@d
zC^A157o*!hTPZwr({d)^6WF##sTX{&M2D8KkV8*wnuZ*HZe`wjSteh3vkW_KE!Hq7
zepj-`QaoACLkE5J?l|bHM8qi-qcfKyt{wXIKC$BR^}NR=l8_(Zy)Mhz;YH%SYi((T
qcTh*Jxj6_qAfUItomEsjXF~^Fio#l_|CIlY{~fe`tY;am&;0_88h2;_

delta 565
zcmXw!JxBvF9L1Ad{>j}%YcU^C92^{U(MjEeZsI6)=&H4=i0xj*!O1U*xVjWvM5Kt|
zDpKkuE>agaagq)~OA$<RciZFtdwK8WW}&%owxoJy9CeM}sFq8Wz1=$6@0!lt+A?pS
zb4;2=JlUwoFbvTEv6>TjfZ$Muk-cDkA*1BdN-yvrxku2IkrRl2$S8JZ_9FqDphL-+
z&A|XFMFqvVGt*fmg!Ax~46Qd*QV*NTM-!;2D2%Nej#5M~llK@}in*<X-X{pdvtrzq
z5qMLvaINfH`DK`mGPBUW0>hMM4A2M#Gum%OWL`G_{AtlLw-Jh#`OB&XChS-!d$)bI
zm3qjIrU6Go6x1z>t)K@PI@Uqpa!6ChvCE-XnkTK-S@NwlbGPGBLj#<mPZ@j3#H*&%
zb&z-K_Jck%^kqNfqx&hML%TI}iC~iTbj(B?<3B`mMu-CHb10eoL>~R3@YLjTPVgc_
QbL|r`9kx4iJ0QL4KUGI^djJ3c

diff --git a/include/texfont.h b/include/texfont.h
index ca1d722..20d4693 100644
--- a/include/texfont.h
+++ b/include/texfont.h
@@ -213,5 +213,9 @@
 #define TEXFONT_BOTTOM_CHAR '\303'
 #define TEXFONT_SUPSET "\304"
 #define TEXFONT_SUPSET_CHAR '\304'
+#define TEXFONT_ARROW_UP "\305"
+#define TEXFONT_ARROW_UP_CHAR '\305'
+#define TEXFONT_ARROW_DOWN "\306"
+#define TEXFONT_ARROW_DOWN_CHAR '\306'
 
 #endif /* TEXFONT_H */
diff --git a/src/tex/tex_symbols.c b/src/tex/tex_symbols.c
index 988ab58..766bbd5 100644
--- a/src/tex/tex_symbols.c
+++ b/src/tex/tex_symbols.c
@@ -64,6 +64,7 @@ static const MapEnt g_map[] = {
 	{ "dim", SYMC_FUNC_DIM, SYM_FUNC },
 	{ "div", GL(TEXFONT_DIVIDE_CHAR), SYM_GLYPH },
 	{ "dot", SYMC_ACC_DOT, SYM_ACCENT },
+	{ "downarrow", GL(TEXFONT_ARROW_DOWN_CHAR), SYM_GLYPH },
 	{ "ell", GL(TEXFONT_ELL_CHAR), SYM_GLYPH },
 	{ "emptyset", GL(TEXFONT_EMPTY_SET_CHAR), SYM_GLYPH },
 	{ "end", SYMC_END, SYM_STRUCT },
@@ -171,6 +172,7 @@ static const MapEnt g_map[] = {
 	{ "top", GL(TEXFONT_TOP_CHAR), SYM_GLYPH },
 	{ "underbrace", SYMC_UNDERBRACE, SYM_STRUCT },
 	{ "underline", SYMC_ACC_UNDERLINE, SYM_ACCENT },
+	{ "uparrow", GL(TEXFONT_ARROW_UP_CHAR), SYM_GLYPH },
 	{ "upsilon", GL(TEXFONT_upsilon_CHAR), SYM_GLYPH },
 	{ "vec", SYMC_ACC_VEC, SYM_ACCENT },
 	{ "vee", GL(TEXFONT_LOGICAL_OR_CHAR), SYM_GLYPH },
diff --git a/tests/test_symbols.c b/tests/test_symbols.c
index 04562d6..74ec7ab 100644
--- a/tests/test_symbols.c
+++ b/tests/test_symbols.c
@@ -45,6 +45,8 @@ int main(void)
 	check_sym("langle", SYM_GLYPH, TEXFONT_LANGLE_CHAR);
 	check_sym("rangle", SYM_GLYPH, TEXFONT_RANGLE_CHAR);
 	check_sym("supset", SYM_GLYPH, TEXFONT_SUPSET_CHAR);
+	check_sym("uparrow", SYM_GLYPH, TEXFONT_ARROW_UP_CHAR);
+	check_sym("downarrow", SYM_GLYPH, TEXFONT_ARROW_DOWN_CHAR);
 
 	// Structural
 	SymbolDesc d;
diff --git a/tools/process_fonts.py b/tools/process_fonts.py
old mode 100755
new mode 100644
index 1c9ad57..8032c90
--- a/tools/process_fonts.py
+++ b/tools/process_fonts.py
@@ -87,7 +87,7 @@
     0x2295,  # ⊕ Circled plus (oplus)
 ]
 
-# The Master Symbol List (0x80 - 0xC4).
+# The Master Symbol List (0x80 - 0xC6).
 SYMBOLS = [
     # Greek Lower
     0x03B1, 0x03B2, 0x03B3, 0x03B4, 0x03B5, 0x03B6, 0x03B7, 0x03B8,
@@ -110,6 +110,8 @@
     # Boolean logic
     0x2227, 0x2228, 0x00AC, 0x21D2, 0x21D4, 0x22A4, 0x22A5,
     0x2283,  # Superset / material-implication horseshoe (\supset)
+    0x2191,  # Up arrow / Sheffer stroke for NAND (\uparrow)
+    0x2193,  # Down arrow / Peirce arrow for NOR (\downarrow)
 ]