From: Mischa POSLAWSKY <perl@shiar.org>
Date: Fri, 21 Apr 2017 17:07:12 +0000 (+0200)
Subject: charset: symbols inheritance, override private use
X-Git-Tag: v1.10~116
X-Git-Url: http://git.shiar.nl/sheet.git/commitdiff_plain/4a6c818d4db51cb135196d442a8c5c7b25544744

charset: symbols inheritance, override private use

Find unicode equivalents for placeholders in Encode::Symbol maps,
matching descriptions in ucm sources.  Compare Windows Symbol at
<http://www.alanwood.net/demos/symbol.html> with Adobe version at
<http://www.sscnet.ucla.edu/soc/faculty/mcfarland/soc281/symbol.htm>.
---

diff --git a/charset.plp b/charset.plp
index 5955c39..e8382f5 100644
--- a/charset.plp
+++ b/charset.plp
@@ -105,7 +105,7 @@ sub tabinput {
 		hebrew     => [qw( iso-8859-8 cp1255 MacHebrew cp862  U59-5F )],
 		thai       => [qw( iso-8859-11 cp874 MacThai )],
 		vietnamese => [qw( viscii cp1258 MacVietnamese )],
-		symbol     => [qw( symbol dingbats MacDingbats AdobeZdingbat AdobeSymbol )],
+		symbols    => [qw( symbol dingbats MacDingbats )],
 
 		# iso-code shorthand
 		1 => 'westeur',
@@ -125,7 +125,7 @@ sub tabinput {
 		return;
 	}
 
-	state $visible = {};  # all present tables
+	state $visible = {'' => 1};  # all present tables
 	my %row = (offset => 0, cols => 16);
 	my $params = $input =~ s/[+](.*)\z// ? $1 : undef;
 
@@ -133,6 +133,11 @@ sub tabinput {
 		state $INHERIT = {
 			'cp437'       => ['cp850' => 0, 'ascii' => '0-31+128'], # ascii range overridden later
 			'gsm0338'     => ['ascii' => '0-127'],
+			'dingbats'    => ['' => '32-127+160'],
+			'MacDingbats' => ['dingbats' => '128-159'],
+			'AdobeZdingbat'=> ['MacDingbats' => '128-159'], # should be identical but maps to private use
+			'symbol'      => ['' => '32-127+160'],
+			'AdobeSymbol' => ['symbol' => '32-127+160', '' => '32-127+160'], # minor differences, irrelevant except for different '€'
 
 			'iso-8859-2'  => ['iso-8859-1' => '160'],
 			'iso-8859-3'  => ['iso-8859-1' => '160'], #TODO: also apply to iso-8859-9
@@ -313,6 +318,21 @@ sub tabinput {
 				);
 			}
 		}
+		elsif ($row{set} eq 'symbol') {
+			if ($row{offset} <= 0x60 and $row{endpoint} >= 0x60 - $row{offset}) {
+				# replace radical extender by closest unicode equivalent
+				substr($row{table}, 0x60 - $row{offset},  1) = '│';
+			}
+			if ($row{offset} <= 0xBD and $row{endpoint} >= 0xFF - $row{offset}) {
+				substr($row{table}, 0xBD - $row{offset},  2) = '⏐⎯'; # arrow extenders
+				substr($row{table}, 0xD2 - $row{offset},  3) = '®©™'; # serif variants
+				substr($row{table}, 0xE0 - $row{offset},  1) = '◊'; # replace lookalike, should match AdobeSymbol
+				substr($row{table}, 0xE2 - $row{offset},  3) = '®©™'; # sans-serif variants
+				substr($row{table}, 0xE6 - $row{offset}, 10) = '⎛⎜⎝⎡⎢⎣⎧⎨⎩⎪';
+				substr($row{table}, 0xF0 - $row{offset},  1) = '€';
+				substr($row{table}, 0xF4 - $row{offset}, 11) = '⎮⌡⎞⎟⎠⎤⎥⎦⎫⎬⎭';
+			}
+		}
 
 		$visible->{ascii} =  # assume common base
 		$visible->{ $row{set} } = 1;