From: Ben Harris <bjh21@bjh21.me.uk>
Date: Sun, 2 Jun 2024 13:07:08 +0000 (+0100)
Subject: Alias mappings for 'rtlm'
X-Git-Tag: bedstead-002.007~48
X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~bjharris/git?a=commitdiff_plain;h=aa596a604be810cbcccc991e28079ae381d07e61;p=bedstead.git

Alias mappings for 'rtlm'

These are characters that have the Bidi_Mirroring_Glyph but don't
appear in the OpenType Mirroring Pairs List (OMPL).  In a couple of
cases, these are listed by Unicode as "best fit" and I think I should
actually redraw the tildes the other way around.
---

diff --git a/bedstead.c b/bedstead.c
index e301987..1fd0b1a 100644
--- a/bedstead.c
+++ b/bedstead.c
@@ -1403,9 +1403,11 @@ static struct glyph {
  {{000,037,000,002,025,010,000,000,000}, -1, "uni2242.rtlm" },
  {{000,010,025,002,000,037,000,000,000}, U(2243) }, /* asymptotically equal */
  {{010,025,002,000,037,000,037,000,000}, 0x2245, "congruent" },
+ ALIAS("congruent.rtlm", "uni224C"),
  {{000,010,025,002,010,025,002,000,000}, 0x2248, "approxequal" },
  {{000,002,025,010,002,025,010,000,000}, -1, "approxequal.rtlm" },
  {{002,025,010,000,037,000,037,000,000}, U(224C) }, /* all equal to */
+ ALIAS("uni224C.rtlm", "congruent"),
  {{000,021,016,000,016,021,000,000,000}, U(224D) }, /* equivalent to */
  {{000,004,033,000,033,004,000,000,000}, U(224E) }, /* geom equiv to */
  {{000,004,033,000,037,000,000,000,000}, U(224F) }, /* difference between */
@@ -1454,6 +1456,7 @@ static struct glyph {
  {{000,024,024,027,024,024,000,000,000}, U(22A9) }, /* forces */
  {{000,024,027,024,027,024,000,000,000}, U(22AB) }, /* dbl v dbl rt tstile */
  {{000,000,002,035,002,000,000,000,000}, U(22B8) }, /* multimap */
+ ALIAS("uni22B8.rtlm", "uni27DC"),
  {{000,021,012,004,000,037,000,000,000}, U(22BB) }, /* xor */
  {{000,037,000,004,012,021,000,000,000}, U(22BC) }, /* nand */
  {{000,037,000,021,012,004,000,000,000}, U(22BD) }, /* nor */
@@ -1847,6 +1850,7 @@ static struct glyph {
  {{004,004,004,004,004,004,004,004,037}, U(27D8) }, /* large up tack */
  {{037,004,004,004,004,004,004,004,004}, U(27D9) }, /* large down tack */
  {{000,000,010,027,010,000,000,000,000}, U(27DC) }, /* left multimap */
+ ALIAS("uni27DC.rtlm", "uni22B8"),
  {{002,002,004,010,004,002,002,000,000}, U(27E8) }, /* left angle bracket */
  {{010,010,004,002,004,010,010,000,000}, U(27E9) }, /* right angle bracket */
  {{002,004,004,004,004,004,002,000,000}, U(27EE) }, /* flattened parenleft */
@@ -1949,7 +1953,9 @@ static struct glyph {
  {{017,020,017,000,037,000,037,000,000}, U(2AC5) }, /* subset equals */
  {{036,001,036,000,037,000,037,000,000}, U(2AC6) }, /* superset equals */
  {{017,020,017,000,010,025,002,000,000}, U(2AC7) }, /* subset tilde */
+ ALIAS("uni2AC7.rtlm", "uni2AC8"),
  {{036,001,036,000,010,025,002,000,000}, U(2AC8) }, /* superset tilde */
+ ALIAS("uni2AC8.rtlm", "uni2AC7"),
  {{000,017,021,021,021,017,000,000,000}, U(2ACF) }, /* closed subset */
  {{000,036,021,021,021,036,000,000,000}, U(2AD0) }, /* closed superset */
  {{017,021,021,021,017,000,037,000,000}, U(2AD1) }, /* closed subset or eq */
@@ -2024,13 +2030,21 @@ static struct glyph {
  {{000,000,000,000,000,022,022,011,000}, U(2E42) }, /* dbl low rev9 quote */
  {{004,004,037,004,037,004,037,004,004}, U(2E4B) }, /* triple dagger */
  {{017,010,010,034,010,010,017,000,000}, U(2E55) }, /* bracketleft stroke */
+ ALIAS("uni2E55.rtlm", "uni2E56"),
  {{036,002,002,007,002,002,036,000,000}, U(2E56) }, /* bracketright stroke */
+ ALIAS("uni2E56.rtlm", "uni2E55"),
  {{017,010,034,010,034,010,017,000,000}, U(2E57) }, /* bracketleft dbl strk */
+ ALIAS("uni2E57.rtlm", "uni2E58"),
  {{036,002,007,002,007,002,036,000,000}, U(2E58) }, /* bracketright dbl strk */ 
+ ALIAS("uni2E58.rtlm", "uni2E57"),
  {{002,004,010,010,000,000,000,000,000}, U(2E59) }, /* top half parenleft */
+ ALIAS("uni2E59.rtlm", "uni2E5A"),
  {{010,004,002,002,000,000,000,000,000}, U(2E5A) }, /* top half parenright */
+ ALIAS("uni2E5A.rtlm", "uni2E59"),
  {{000,000,000,010,010,004,002,000,000}, U(2E5B) }, /* bot half parenleft */
+ ALIAS("uni2E5B.rtlm", "uni2E5C"),
  {{000,000,000,002,002,004,010,000,000}, U(2E5C) }, /* bot half parenright */
+ ALIAS("uni2E5C.rtlm", "uni2E5B"),
  {{000,000,002,004,010,000,000,000,000}, U(2E5D) }, /* oblique hyphen */
 
  /* Latin extended-D */