Unicode superscript and subscript parentheses as operators
![](https://secure.gravatar.com/avatar/d558f7d2c62b984d42b1e276bbdfc2c7.jpg?s=120&d=mm&r=g)
Is it possible to use the Unicode superscript and subscript parentheses as superscript and subscript operators? That is, ⁽…⁾ having the same function as ^{…}, and ₍…₎ as _{…}. It might be something like the following, but somehow bundling the last part of \letcharcode into a command. \appendtoks \catcode`⁽=\activecatcode \letcharcode `⁽ ^{ \catcode`⁾=\activecatcode \letcharcode `⁾ } \catcode`₍=\activecatcode \letcharcode `₍ _{ \catcode`₎=\activecatcode \letcharcode `₎ } \to \everymathematics
![](https://secure.gravatar.com/avatar/46562c7d27388490d62e8d7a5bc960dd.jpg?s=120&d=mm&r=g)
On 12/28/2021 5:54 PM, Hans Åberg via ntg-context wrote:
Is it possible to use the Unicode superscript and subscript parentheses as superscript and subscript operators? That is, ⁽…⁾ having the same function as ^{…}, and ₍…₎ as _{…}.
It might be something like the following, but somehow bundling the last part of \letcharcode into a command. \appendtoks \catcode`⁽=\activecatcode \letcharcode `⁽ ^{ \catcode`⁾=\activecatcode \letcharcode `⁾ } \catcode`₍=\activecatcode \letcharcode `₍ _{ \catcode`₎=\activecatcode \letcharcode `₎ } \to \everymathematics
\protected\def\FancySuperscript#1⁾{\superscript{#1}} \protected\def\FancySubscript #1₍{\subscript {#1}} \protected\def\FancyScripts {\catcode`⁽=\activecatcode\letcharcode`⁽=\FancySuperscript \catcode`₍=\activecatcode\letcharcode`₍=\FancySubscript} \appendtoks \FancyScripts \to \everymathematics \starttext test $ x⁽3y⁾ $ \stoptext ----------------------------------------------------------------- Hans Hagen | PRAGMA ADE Ridderstraat 27 | 8061 GH Hasselt | The Netherlands tel: 038 477 53 69 | www.pragma-ade.nl | www.pragma-pod.nl -----------------------------------------------------------------
![](https://secure.gravatar.com/avatar/d558f7d2c62b984d42b1e276bbdfc2c7.jpg?s=120&d=mm&r=g)
On 28 Dec 2021, at 22:29, Hans Hagen
wrote: \protected\def\FancySuperscript#1⁾{\superscript{#1}} \protected\def\FancySubscript #1₍{\subscript {#1}}
\protected\def\FancyScripts {\catcode`⁽=\activecatcode\letcharcode`⁽=\FancySuperscript \catcode`₍=\activecatcode\letcharcode`₍=\FancySubscript}
\appendtoks \FancyScripts \to \everymathematics
\starttext
test $ x⁽3y⁾ $
\stoptext
This is great, though there is a typo in the second line. I attach a corrected example, illustrating what I might use it for: A logic program, where I found it readable in plain text to use the Unicode superscript and subscript parentheses. But when typeset, they should be superscripts and subscripts. — \definefallbackfamily [mainface][serif][stixtwotext][range={00B2-00B3,00B9,02070-0208F},force=yes] \definefallbackfamily [mainface][mono][stix][range={0100-10FFFF},force=yes] \definefallbackfamily [mainface][mono][stixtwotext][range={00B2-00B3,00B9,02070-0208F},force=yes] \definefallbackfamily [mainface][math][stixtwomath][range={00B2-00B3,00B9,02070-0208F},force=yes] \definefontfamily [mainface][serif][stix] \definefontfamily [mainface][mono][courier] \definefontfamily [mainface][math][stix] \setupbodyfont [mainface,10pt] \setmathfontalternate{upright} \setupmathematics[integral=nolimits, lcgreek=normal, default=normal] \setupformulae[location=left, indentnext=auto] \setuptyping[indentnext=auto] % Might use: 'small' indentation, no indentation on 'first': \setupindenting[yes, medium, next] \setupheads[indentnext=yes] \setupinteraction[state=start, click=yes, focus=standard, color=darkblue] \mainlanguage[en] \protected\def\FancySuperscript#1⁾{\superscript{#1}} \protected\def\FancySubscript #1₎{\subscript {#1}} \protected\def\FancyScripts {\catcode`⁽=\activecatcode\letcharcode`⁽=\FancySuperscript \catcode`₍=\activecatcode\letcharcode`₍=\FancySubscript} \appendtoks \FancyScripts \to \everymathematics \starttext Course-of-values induction: $$𝜞 ⊢ 𝑷(0); 𝜞, 𝒚 ≤ 𝒙 ⇒ 𝑷(𝒚) ⊢⁽𝒚⁾₍𝒙₎ 𝑷(s(𝒙)) ⊩ 𝜞 ⊢ 𝑷(𝒕)$$ \stoptext —
![](https://secure.gravatar.com/avatar/46562c7d27388490d62e8d7a5bc960dd.jpg?s=120&d=mm&r=g)
On 12/28/2021 10:53 PM, Hans Åberg wrote:
On 28 Dec 2021, at 22:29, Hans Hagen
wrote: \protected\def\FancySuperscript#1⁾{\superscript{#1}} \protected\def\FancySubscript #1₍{\subscript {#1}}
\protected\def\FancyScripts {\catcode`⁽=\activecatcode\letcharcode`⁽=\FancySuperscript \catcode`₍=\activecatcode\letcharcode`₍=\FancySubscript}
\appendtoks \FancyScripts \to \everymathematics
\starttext
test $ x⁽3y⁾ $
\stoptext
This is great, though there is a typo in the second line. I attach a corrected example, illustrating what I might use it for: A logic program, where I found it readable in plain text to use the Unicode superscript and subscript parentheses. But when typeset, they should be superscripts and subscripts.
— \definefallbackfamily [mainface][serif][stixtwotext][range={00B2-00B3,00B9,02070-0208F},force=yes]
\definefallbackfamily [mainface][mono][stix][range={0100-10FFFF},force=yes]
\definefallbackfamily [mainface][mono][stixtwotext][range={00B2-00B3,00B9,02070-0208F},force=yes] \definefallbackfamily [mainface][math][stixtwomath][range={00B2-00B3,00B9,02070-0208F},force=yes]
\definefontfamily [mainface][serif][stix] \definefontfamily [mainface][mono][courier]
\definefontfamily [mainface][math][stix]
\setupbodyfont [mainface,10pt]
\setmathfontalternate{upright}
\setupmathematics[integral=nolimits, lcgreek=normal, default=normal] \setupformulae[location=left, indentnext=auto] \setuptyping[indentnext=auto]
% Might use: 'small' indentation, no indentation on 'first': \setupindenting[yes, medium, next] \setupheads[indentnext=yes]
\setupinteraction[state=start, click=yes, focus=standard, color=darkblue]
\mainlanguage[en]
\protected\def\FancySuperscript#1⁾{\superscript{#1}} \protected\def\FancySubscript #1₎{\subscript {#1}}
\protected\def\FancyScripts {\catcode`⁽=\activecatcode\letcharcode`⁽=\FancySuperscript \catcode`₍=\activecatcode\letcharcode`₍=\FancySubscript}
\appendtoks \FancyScripts \to \everymathematics
\starttext Course-of-values induction: $$𝜞 ⊢ 𝑷(0); 𝜞, 𝒚 ≤ 𝒙 ⇒ 𝑷(𝒚) ⊢⁽𝒚⁾₍𝒙₎ 𝑷(s(𝒙)) ⊩ 𝜞 ⊢ 𝑷(𝒕)$$
\stoptext
stay away from $$ but use \startformula 𝜞 ⊢ 𝑷(0); 𝜞, 𝒚 ≤ 𝒙 ⇒ 𝑷(𝒚) ⊢⁽𝒚⁾₍𝒙₎ 𝑷(s(𝒙)) ⊩ 𝜞 ⊢ 𝑷(𝒕) \stopformula -- ----------------------------------------------------------------- Hans Hagen | PRAGMA ADE Ridderstraat 27 | 8061 GH Hasselt | The Netherlands tel: 038 477 53 69 | www.pragma-ade.nl | www.pragma-pod.nl -----------------------------------------------------------------
![](https://secure.gravatar.com/avatar/d558f7d2c62b984d42b1e276bbdfc2c7.jpg?s=120&d=mm&r=g)
On 28 Dec 2021, at 23:03, Hans Hagen
wrote: On 12/28/2021 10:53 PM, Hans Åberg wrote:
\starttext Course-of-values induction: $$𝜞 ⊢ 𝑷(0); 𝜞, 𝒚 ≤ 𝒙 ⇒ 𝑷(𝒚) ⊢⁽𝒚⁾₍𝒙₎ 𝑷(s(𝒙)) ⊩ 𝜞 ⊢ 𝑷(𝒕)$$ \stoptext
stay away from $$ but use
\startformula 𝜞 ⊢ 𝑷(0); 𝜞, 𝒚 ≤ 𝒙 ⇒ 𝑷(𝒚) ⊢⁽𝒚⁾₍𝒙₎ 𝑷(s(𝒙)) ⊩ 𝜞 ⊢ 𝑷(𝒕) \stopformula
Thanks, I am aware if that, but wrote it in a hurry. :-)
![](https://secure.gravatar.com/avatar/46562c7d27388490d62e8d7a5bc960dd.jpg?s=120&d=mm&r=g)
On 12/28/2021 10:53 PM, Hans Åberg wrote:
This is great, though there is a typo in the second line. I attach a corrected example, illustrating what I might use it for: A logic program, where I found it readable in plain text to use the Unicode superscript and subscript parentheses. But when typeset, they should be superscripts and subscripts. i still want to come up with domain specific math features ... sp fpr instance we could have a module for logic but it's users who have to come up with demands ...
Hans ----------------------------------------------------------------- Hans Hagen | PRAGMA ADE Ridderstraat 27 | 8061 GH Hasselt | The Netherlands tel: 038 477 53 69 | www.pragma-ade.nl | www.pragma-pod.nl -----------------------------------------------------------------
![](https://secure.gravatar.com/avatar/d558f7d2c62b984d42b1e276bbdfc2c7.jpg?s=120&d=mm&r=g)
On 28 Dec 2021, at 23:05, Hans Hagen
wrote: On 12/28/2021 10:53 PM, Hans Åberg wrote:
This is great, though there is a typo in the second line. I attach a corrected example, illustrating what I might use it for: A logic program, where I found it readable in plain text to use the Unicode superscript and subscript parentheses. But when typeset, they should be superscripts and subscripts. i still want to come up with domain specific math features ... sp fpr instance we could have a module for logic but it's users who have to come up with demands ...
I found using Unicode superscript and subscript parentheses more readable in general than the TeX convention in plain text. Otherwise, the program has logic as a basis, but is not intended to be restricted to that. FYI, the program is posted here, but has some dependencies to get running. The directory 'tests' has examples that are precompiled (checked agains with 'make check'). https://savannah.gnu.org/git/?group=metalogic-inference
![](https://secure.gravatar.com/avatar/d558f7d2c62b984d42b1e276bbdfc2c7.jpg?s=120&d=mm&r=g)
On 28 Dec 2021, at 23:05, Hans Hagen
wrote: On 12/28/2021 10:53 PM, Hans Åberg wrote:
This is great, though there is a typo in the second line. I attach a corrected example, illustrating what I might use it for: A logic program, where I found it readable in plain text to use the Unicode superscript and subscript parentheses. But when typeset, they should be superscripts and subscripts. i still want to come up with domain specific math features ... sp fpr instance we could have a module for logic but it's users who have to come up with demands ...
With direct bindings in LuaTeX it might be easier. —TeX syntax is good for writing by hand only.
participants (2)
-
Hans Hagen
-
Hans Åberg