* Re: some math symbols not working [not found] <mailman.271.1265959988.26807.ntg-context@ntg.nl> @ 2010-02-12 11:35 ` Warrence 0 siblings, 0 replies; 6+ messages in thread From: Warrence @ 2010-02-12 11:35 UTC (permalink / raw) To: ntg-context On Thu, 11 Feb 2010, Aditya Mahajan wrote: >> In addition: \ncong is not aligned with = and \cong > > I am not sure what \ncong should map to: 0x2246 or 0x2247? There is > inconsistency between the mappings in char-def and math-vfu which can be fixed > easily once I figure out what is the correct mapping. My opinion is, that it should be 0x2247 (the whole glyph scored out), because that would be the clear negation of the sign (similar to what \not\cong should do). Maybe provide another command for 0x2246? \congneq or \simneq for example. And many thanks for fixing this. Stefan ___________________________________________________________________________________ If your question is of interest to others as well, please add an entry to the Wiki! maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context webpage : http://www.pragma-ade.nl / http://tex.aanhet.net archive : http://foundry.supelec.fr/projects/contextrev/ wiki : http://contextgarden.net ___________________________________________________________________________________ ^ permalink raw reply [flat|nested] 6+ messages in thread
* some math symbols not working @ 2010-02-08 9:10 Warrence 2010-02-11 23:10 ` Aditya Mahajan 0 siblings, 1 reply; 6+ messages in thread From: Warrence @ 2010-02-08 9:10 UTC (permalink / raw) To: ntg-context Hi, I was trying some math symbols and stumbled over the following commands, that do not work in my context documents (the comments say what's not working exactly). The pasted document works at http://live.contextgarden.net/ . I'm using the latest context-minimals as provided on the website. Is this a MkIV issue? In addition: \ncong is not aligned with = and \cong Thanks in advance! Stefan \starttext \startformula % the following give "Undefined control sequence": \gneq % \lneq works \lhd \rhd \unlhd \unrhd \Diamond % the following produce no symbol: \mapsto \hookleftarrow \longleftarrow \Longleftarrow \longrightarrow \Longrightarrow \longleftrightarrow \Longleftrightarrow \longmapsto \hookrightarrow \Join \blacksquare \bowtie \models \ncong % \cong produces the wrong symbol: it shows a dot on top of a plus, but there should be a ~ on top of = \cong \stopformula \stoptext ___________________________________________________________________________________ If your question is of interest to others as well, please add an entry to the Wiki! maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context webpage : http://www.pragma-ade.nl / http://tex.aanhet.net archive : http://foundry.supelec.fr/projects/contextrev/ wiki : http://contextgarden.net ___________________________________________________________________________________ ^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: some math symbols not working 2010-02-08 9:10 Warrence @ 2010-02-11 23:10 ` Aditya Mahajan 2010-02-11 23:37 ` Hans Hagen 0 siblings, 1 reply; 6+ messages in thread From: Aditya Mahajan @ 2010-02-11 23:10 UTC (permalink / raw) To: mailing list for ConTeXt users [-- Attachment #1: Type: TEXT/PLAIN, Size: 2142 bytes --] On Mon, 8 Feb 2010, Warrence wrote: > Hi, > I was trying some math symbols and stumbled over the following commands, that > do not work in my context documents (the comments say what's not working > exactly). The pasted document works at http://live.contextgarden.net/ . I'm > using the latest context-minimals as provided on the website. Is this a MkIV > issue? Yes. The mappings in MkIV are incomplete. Whenever you find a missing symbol, send an email, and I will try to fix add it. > \cong The mapping in math-vfu is wrong and it was mapping the unicode slot of cong to the glyph for dotplus. I am attaching a file that fixes this. However, I do not know how to proceed for \cong. \cong is one of the symbols thar are composed from other symbols in plain tex. So, most traditional tex math fonts (including LM) do not have that symbol. However, opentype math fonts do. Ideally, what we want to map \cong to a font glyph, if one exists; otherwise, we should fall back to a composed character. Hans, we need a mechanism to implement fallbacks for math characters. > \mapsto > \hookleftarrow > \longleftarrow > \Longleftarrow > \longrightarrow > \Longrightarrow > \longleftrightarrow > \Longleftrightarrow > \longmapsto > \hookrightarrow > \bowtie > \models > \Join Same thing as \cong. > \blacksquare Added > In addition: \ncong is not aligned with = and \cong I am not sure what \ncong should map to: 0x2246 or 0x2247? There is inconsistency between the mappings in char-def and math-vfu which can be fixed easily once I figure out what is the correct mapping. > % the following give "Undefined control sequence": > \gneq % \lneq works Fixed.. was a typo > \Diamond \lozenge I am not sure which unicode slot this should map to (0x25C7?). What is the difference between \diamond and \Diamond? > \lhd > \rhd > \unlhd > \unrhd I am not sure which unicode slot they should map to. In ams mappings \triangleleft is different from \lhd, and I cannot find the right symbols for both. I will investigate more for the last two sets. In the mean time, Hans can you apply the attached patch for \blacksquare and \gneq. Aditya [-- Attachment #2: Type: TEXT/PLAIN, Size: 1444 bytes --] diff --git a/char-def.lua b/char-def.lua index 3aec401..5f768e3 100644 --- a/char-def.lua +++ b/char-def.lua @@ -54277,6 +54277,8 @@ characters.data={ description="NORMAL SUBGROUP OF", direction="on", linebreak="al", + mathspec = { + class="bin", mathname="triangleleft", mathclass="bin", mathname="triangleleft", mirror=0x22B3, @@ -59806,6 +59808,8 @@ characters.data={ description="BLACK SQUARE", direction="on", linebreak="ai", + mathclass="ord", + mathname="blacksquare", unicodeslot=0x25A0, }, [0x25A1]={ @@ -68185,7 +68189,7 @@ characters.data={ direction="on", linebreak="al", mathclass="relation", - mathname="rneq", + mathname="gneq", unicodeslot=0x2A88, }, [0x2A89]={ diff --git a/math-vfu.lua b/math-vfu.lua index 9b16357..a2e3b58 100644 --- a/math-vfu.lua +++ b/math-vfu.lua @@ -1126,7 +1126,7 @@ fonts.enc.math["tex-ma"] = { [0x024C7] = 0x72, -- circleR \circledR [0x024C8] = 0x73, -- circleS \circledS [0x022D4] = 0x74, -- fork \pitchfork - [0x02245] = 0x75, -- dotplus \dotplus + [0x02214] = 0x75, -- dotplus \dotplus [0x0223D] = 0x76, -- revsimilar \backsim [0x022CD] = 0x77, -- revasymptequal \backsimeq -- AM: Check this! I mapped it to simeq. [0x0231E] = 0x78, -- rightanglesw \llcorner [-- Attachment #3: Type: text/plain, Size: 486 bytes --] ___________________________________________________________________________________ If your question is of interest to others as well, please add an entry to the Wiki! maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context webpage : http://www.pragma-ade.nl / http://tex.aanhet.net archive : http://foundry.supelec.fr/projects/contextrev/ wiki : http://contextgarden.net ___________________________________________________________________________________ ^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: some math symbols not working 2010-02-11 23:10 ` Aditya Mahajan @ 2010-02-11 23:37 ` Hans Hagen 2010-02-12 3:02 ` Aditya Mahajan 0 siblings, 1 reply; 6+ messages in thread From: Hans Hagen @ 2010-02-11 23:37 UTC (permalink / raw) To: mailing list for ConTeXt users On 12-2-2010 0:10, Aditya Mahajan wrote: > Hans, we need a mechanism to implement fallbacks for math characters. > >> \mapsto >> \hookleftarrow >> \longleftarrow >> \Longleftarrow >> \longrightarrow >> \Longrightarrow >> \longleftrightarrow >> \Longleftrightarrow >> \longmapsto >> \hookrightarrow >> \bowtie >> \models >> \Join grep for fallback in char-def.lua -) eventually I want to solve that by using virtual characters Hans ----------------------------------------------------------------- Hans Hagen | PRAGMA ADE Ridderstraat 27 | 8061 GH Hasselt | The Netherlands tel: 038 477 53 69 | fax: 038 477 53 74 | www.pragma-ade.com | www.pragma-pod.nl ----------------------------------------------------------------- ___________________________________________________________________________________ If your question is of interest to others as well, please add an entry to the Wiki! maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context webpage : http://www.pragma-ade.nl / http://tex.aanhet.net archive : http://foundry.supelec.fr/projects/contextrev/ wiki : http://contextgarden.net ___________________________________________________________________________________ ^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: some math symbols not working 2010-02-11 23:37 ` Hans Hagen @ 2010-02-12 3:02 ` Aditya Mahajan 2010-02-12 8:21 ` Hans Hagen 0 siblings, 1 reply; 6+ messages in thread From: Aditya Mahajan @ 2010-02-12 3:02 UTC (permalink / raw) To: Hans Hagen; +Cc: mailing list for ConTeXt users On Fri, 12 Feb 2010, Hans Hagen wrote: > On 12-2-2010 0:10, Aditya Mahajan wrote: > >> Hans, we need a mechanism to implement fallbacks for math characters. >> >>> \mapsto >>> \hookleftarrow >>> \longleftarrow >>> \Longleftarrow >>> \longrightarrow >>> \Longrightarrow >>> \longleftrightarrow >>> \Longleftrightarrow >>> \longmapsto >>> \hookrightarrow >>> \bowtie >>> \models >>> \Join > > grep for fallback in char-def.lua -) I mean a mechanism that actually does something :-). Try $\nsubset$. > eventually I want to solve that by using virtual characters Should I just start adding stuff to fallback and assume that you will get the mechanism to work? IIRC, in the past we were not sure where to specify the fallback characters. Aditya ___________________________________________________________________________________ If your question is of interest to others as well, please add an entry to the Wiki! maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context webpage : http://www.pragma-ade.nl / http://tex.aanhet.net archive : http://foundry.supelec.fr/projects/contextrev/ wiki : http://contextgarden.net ___________________________________________________________________________________ ^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: some math symbols not working 2010-02-12 3:02 ` Aditya Mahajan @ 2010-02-12 8:21 ` Hans Hagen 0 siblings, 0 replies; 6+ messages in thread From: Hans Hagen @ 2010-02-12 8:21 UTC (permalink / raw) To: Aditya Mahajan; +Cc: mailing list for ConTeXt users On 12-2-2010 4:02, Aditya Mahajan wrote: > Should I just start adding stuff to fallback and assume that you will > get the mechanism to work? IIRC, in the past we were not sure where to > specify the fallback characters. indeed, if these chars are on other than tex fonts, i will make virtual lm glyphs .. eventually they will be in lm//gyre anyway Hans ----------------------------------------------------------------- Hans Hagen | PRAGMA ADE Ridderstraat 27 | 8061 GH Hasselt | The Netherlands tel: 038 477 53 69 | fax: 038 477 53 74 | www.pragma-ade.com | www.pragma-pod.nl ----------------------------------------------------------------- ___________________________________________________________________________________ If your question is of interest to others as well, please add an entry to the Wiki! maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context webpage : http://www.pragma-ade.nl / http://tex.aanhet.net archive : http://foundry.supelec.fr/projects/contextrev/ wiki : http://contextgarden.net ___________________________________________________________________________________ ^ permalink raw reply [flat|nested] 6+ messages in thread
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2010-02-12 11:35 ` some math symbols not working Warrence
2010-02-08 9:10 Warrence
2010-02-11 23:10 ` Aditya Mahajan
2010-02-11 23:37 ` Hans Hagen
2010-02-12 3:02 ` Aditya Mahajan
2010-02-12 8:21 ` Hans Hagen
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