August 2018 - ntg-context - NTG Mailing Lists

scite
by Hans Hagen 21 Aug '18

21 Aug '18

Hi, does anyone know where one can download a scite 3.80 (long term stable) https://sourceforge.net/projects/scintilla/files/scintilla/3.8.0/ or do we need to start compiling it ourselves 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 -----------------------------------------------------------------

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future versions
by Hans Hagen 21 Aug '18

21 Aug '18

Hi, Around the upcoming context meeting we expect to release luatex 1.09 (or 1.10 ... yet undecided) which is the prelude to the next year tex live version. It's another step towards a stable version in terms of functionality as we don't expect much more to be added (in fact, I'm wondering if it makes sense to come up with a leaner and meaner version at some point because context can probably benefit from that). Of course under the hood there are improvements possible and we have some ideas (that might materialize at some point) but generally spoken, this is what one gets. That said, a logical question is how about next versions of context. Are there fundamental features missing? Is more needed? Keep in mind that we're not talking of desk top publishing (click and point and place stuff) and also not of word processing (office like stuff) but of mostly automated structured document rendering. Also, keep in mind the landscape that we operate in (context development is mostly user driven as publishers imo long ago lost interest in any research and development and the potential of tex and friends is largely unknown elsewhere). It's not my intention to implement each possible feature as core feature (no one would document it anyway). Also, as development is basically a spare time effort, don't expect complex commercially interesting niches to come for free either as in that case one can wait till I a find a reason for implementing it for fun or development is driven by a project. When thinking of future additions, tex, lua, metapost of a mix is possible. They should be of interest for more than one user. Of course it can also be that everything needed is there. Maybe existing mechanisms can be improved in terms of functionality or performance (although i think that performance wise we're ok). But again keep in mind that the boundary conditions (all these interacting sub mechanisms) also prohibit some functionality. 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 -----------------------------------------------------------------

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Migrating ConTeXt's Textadept settings from v9 to v10.
by cryo shock 21 Aug '18

21 Aug '18

Hi Hans, I'd surely love help you to adapt ConTeXt's settings from v9 to v10. I hope that the following quotations will help you enough. I also hope that the format doesn't get mixed up when I send this mail. --------------------- QUOTATION start source: https://foicica.com/textadept/manual.html#Migration.Guides Migration Guides Textadept 9 to 10 API Changes Old API Change New API *_G* bit32 Removed N/A *(use bitwise operators)* *buffer* brace_match(pos) Changed brace_match <https://foicica.com/textadept/api.html#buffer.brace_match>(pos, 0) *lexer* _foldsymbols Replaced add_fold_point() <https://foicica.com/textadept/api.html#lexer.add_fold_point> _rules Replaced add_rule() <https://foicica.com/textadept/api.html#lexer.add_rule> _tokenstyles Replaced add_style() <https://foicica.com/textadept/api.html#lexer.add_style> embed_lexer(parent, child, …) Renamed parent:embed <https://foicica.com/textadept/api.html#lexer.embed>(child, …) _RULES[id] Replaced get_rule <https://foicica.com/textadept/api.html#lexer.get_rule>(id) _RULES[id] = rule Replaced modify_rule <https://foicica.com/textadept/api.html#lexer.modify_rule>(id, rule) N/A Added new() <https://foicica.com/textadept/api.html#lexer.new> word_match(list, wchars, icase) Changed word_match <https://foicica.com/textadept/api.html#lexer.word_match>(words, icase) *ui* set_theme Renamed buffer.set_theme() <https://foicica.com/textadept/api.html#buffer.set_theme> *textadept.editing* match_brace Replaced N/A *(menu function)* N/A Added paste() <https://foicica.com/textadept/api.html#textadept.editing.paste> N/A Added paste_reindents <https://foicica.com/textadept/api.html#textadept.editing.paste_reindents> *textadept.session* default_session Removed Configuration Changes Textadept 10 no longer uses a *~/.textadept/properties.lua* file. Instead, all buffer settings are made in *~/.textadept/init.lua*, and apply to the first and any subsequent buffers. (In Textadept 9, any buffer settings made in *~/.textadept/init.lua* only applied to the first buffer, so a *~/.textadept/properties.lua* was required in order to define buffer settings that would affect subsequent buffers.) Simply copying the contents of your *~/.textadept/properties.lua* into *~/.textadept/init.lua* should be sufficient. Lexer Changes Lexers are now written in a more object-oriented way. Legacy lexers are still supported, but it is recommended that you migrate them <https://foicica.com/textadept/api.html#lexer.Migrating.Legacy.Lexers>. Key Bindings Changes The terminal version’s key sequence for Ctrl+Space is now 'c ' instead of 'c@'. Regex Changes Textadept now uses C++11’s ECMAScript regex syntax <https://foicica.com/textadept/manual.html#Regular.Expressions> instead of TRE <https://github.com/laurikari/tre>. Mac OSX System Requirements Textadept now requires Mac OSX 10.6 (Snow Leopard) at a minimum. The previous minimum version was 10.5 (Leopard). LuaJIT Changes The LuaJIT version of Textadept has been removed. Any LuaJIT-specific features used in external modules will no longer function. --------------------- QUOTATION end I also found this here: --------------------- QUOTATION start source: https://foicica.com/textadept/api.html#lexer.Migrating.Legacy.Lexers Migrating Legacy Lexers Legacy lexers are of the form: local l = require('lexer') local token, word_match = l.token, l.word_match local P, R, S = lpeg.P, lpeg.R, lpeg.S local M = {_NAME = '?'} [... token and pattern definitions ...] M._rules = { {'rule', pattern}, [...] } M._tokenstyles = { 'token' = 'style', [...] } M._foldsymbols = { _patterns = {...}, ['token'] = {['start'] = 1, ['end'] = -1}, [...] } return M While such legacy lexers will be handled just fine without any changes, it is recommended that you migrate yours. The migration process is fairly straightforward: 1. Replace all instances of l with lexer, as it’s better practice and results in less confusion. 2. Replace local M = {_NAME = '?'} with local lex = lexer.new('?'), where ? is the name of your legacy lexer. At the end of the lexer, change return M to return lex. 3. Instead of defining rules towards the end of your lexer, define your rules as you define your tokens and patterns using lex:add_rule() <https://foicica.com/textadept/api.html#lexer.add_rule>. 4. Similarly, any custom token names should have their styles immediately defined using lex:add_style() <https://foicica.com/textadept/api.html#lexer.add_style>. 5. Convert any table arguments passed to lexer.word_match() <https://foicica.com/textadept/api.html#lexer.word_match> to a space-separated string of words. 6. Replace any calls to lexer.embed(M, child, ...) and lexer.embed(parent, M, ...) with lex:embed <https://foicica.com/textadept/api.html#lexer.embed>(child, ...) and parent:embed(lex, ...), respectively. 7. Define fold points with simple calls to lex:add_fold_point() <https://foicica.com/textadept/api.html#lexer.add_fold_point>. No need to mess with Lua patterns anymore. 8. Any legacy lexer options such as M._FOLDBYINDENTATION, M._LEXBYLINE, M._lexer, etc. should be added as table options to lexer.new() <https://foicica.com/textadept/api.html#lexer.new>. 9. Any external lexer rule fetching and/or modifications via lexer._RULES should be changed to use lexer.get_rule() <https://foicica.com/textadept/api.html#lexer.get_rule> and lexer.modify_rule() <https://foicica.com/textadept/api.html#lexer.modify_rule>. As an example, consider the following sample legacy lexer: local l = require('lexer') local token, word_match = l.token, l.word_match local P, R, S = lpeg.P, lpeg.R, lpeg.S local M = {_NAME = 'legacy'} local ws = token(l.WHITESPACE, l.space^1) local comment = token(l.COMMENT, '#' * l.nonnewline^0) local string = token(l.STRING, l.delimited_range('"')) local number = token(l.NUMBER, l.float + l.integer) local keyword = token(l.KEYWORD, word_match{'foo', 'bar', 'baz'}) local custom = token('custom', P('quux')) local identifier = token(l.IDENTIFIER, l.word) local operator = token(l.OPERATOR, S('+-*/%^=<>,.()[]{}')) M._rules = { {'whitespace', ws}, {'keyword', keyword}, {'custom', custom}, {'identifier', identifier}, {'string', string}, {'comment', comment}, {'number', number}, {'operator', operator} } M._tokenstyles = { 'custom' = l.STYLE_KEYWORD..',bold' } M._foldsymbols = { _patterns = {'[{}]'}, [l.OPERATOR] = {['{'] = 1, ['}'] = -1} } return M Following the migration steps would yield: local lexer = require('lexer') local token, word_match = lexer.token, lexer.word_match local P, R, S = lpeg.P, lpeg.R, lpeg.S local lex = lexer.new('legacy') lex:add_rule('whitespace', token(lexer.WHITESPACE, lexer.space^1)) lex:add_rule('keyword', token(lexer.KEYWORD, word_match[[foo bar baz]])) lex:add_rule('custom', token('custom', P('quux'))) lex:add_style('custom', lexer.STYLE_KEYWORD..',bold') lex:add_rule('identifier', token(lexer.IDENTIFIER, lexer.word)) lex:add_rule('string', token(lexer.STRING, lexer.delimited_range('"'))) lex:add_rule('comment', token(lexer.COMMENT, '#' * lexer.nonnewline^0)) lex:add_rule('number', token(lexer.NUMBER, lexer.float + lexer.integer)) lex:add_rule('operator', token(lexer.OPERATOR, S('+-*/%^=<>,.()[]{}'))) lex:add_fold_point(lexer.OPERATOR, '{', '}') return lex Considerations Performance There might be some slight overhead when initializing a lexer, but loading a file from disk into Scintilla is usually more expensive. On modern computer systems, I see no difference in speed between Lua lexers and Scintilla’s C++ ones. Optimize lexers for speed by re-arranging lexer.add_rule() calls so that the most common rules match first. Do keep in mind that order matters for similar rules. In some cases, folding may be far more expensive than lexing, particularly in lexers with a lot of potential fold points. If your lexer is exhibiting signs of slowness, try disabling folding in your text editor first. If that speeds things up, you can try reducing the number of fold points you added, overriding lexer.fold() with your own implementation, or simply eliminating folding support from your lexer. Limitations Embedded preprocessor languages like PHP cannot completely embed in their parent languages in that the parent’s tokens do not support start and end rules. This mostly goes unnoticed, but code like <div id="<?php echo $id; ?>"> will not style correctly. Troubleshooting Errors in lexers can be tricky to debug. Lexers print Lua errors to io.stderr and _G.print() statements to io.stdout. Running your editor from a terminal is the easiest way to see errors as they occur. Risks Poorly written lexers have the ability to crash Scintilla (and thus its containing application), so unsaved data might be lost. However, I have only observed these crashes in early lexer development, when syntax errors or pattern errors are present. Once the lexer actually starts styling text (either correctly or incorrectly, it does not matter), I have not observed any crashes. --------------------- QUOTATION end If you could use anything else, let me know. Cheers, L.

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Textadept with ConTeXt
by Fabrice Couvreur 21 Aug '18

21 Aug '18

Hello, In order to use another editor than Emacs and after testing Scite, I installed Textadept and modified the init.lua file as follows : textadept.run.compile_commands.tex = 'mtxrun --autogenerate --script context --autopdf --purge --synctex = -1 "% f"' The compilation works but no automatic output in pdf at the end of the process (as with Scite !) What to do with files in /home /aragorn/context/tex /texmf-context/context/data /textadept/ context/ ? Thank you. Fabrice

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Latest beta
by Fabrice Couvreur 21 Aug '18

21 Aug '18

Hello, Compile error after context standalone update Thanks Fabrice Running `ConTeXt' on `Test' with ``context --once --texutil --purgeall --nonstop Test.tex'' resolvers | trees | analyzing 'home:texmf' mtx-context | run 1: luatex --fmt="/home/aragorn/context/tex/texmf-cache/luatex-cache/context/5fe67e0bfe781ce0dde776fb1556f32e/formats/luatex/cont-en" --interaction="nonstopmode" --jobname="Test" --lua="/home/aragorn/context/tex/texmf-cache/luatex-cache/context/5fe67e0bfe781ce0dde776fb1556f32e/formats/luatex/cont-en.lui" --no-parse-first-line --c:currentrun=1 --c:fulljobname="./Test.tex" --c:input="./Test.tex" --c:kindofrun=3 --c:maxnofruns=1 --c:nonstopmode --c:once --c:purgeall --c:texutil "cont-yes.mkiv" This is LuaTeX, Version 1.08.0 (TeX Live 2018) system commands enabled. resolvers > trees > analyzing 'home:texmf' open source > level 1, order 1, name '/home/aragorn/context/tex/texmf-context/tex/context/base/mkiv/cont-yes.mkiv' job > passes > version mismatch: 1.3 <> 1.31 system > system > ConTeXt ver: 2018.08.20 17:47 MKIV beta fmt: 2018.8.20 int: english/english system > system > 'cont-new.mkiv' loaded open source > level 2, order 2, name '/home/aragorn/context/tex/texmf-context/tex/context/base/mkiv/cont-new.mkiv' system > beware: some patches loaded from cont-new.mkiv close source > level 2, order 2, name '/home/aragorn/context/tex/texmf-context/tex/context/base/mkiv/cont-new.mkiv' system > files > jobname 'Test', input './Test', result 'Test' fonts > latin modern fonts are not preloaded languages > language 'en' is active open source > level 2, order 3, name '/home/aragorn/Test.tex' fonts > preloading latin modern fonts (second stage) fonts > 'fallback modern-designsize rm 12pt' is loaded structure > sectioning > title @ level 2 : 0.0 -> Sommaire backend > xmp > using file '/home/aragorn/context/tex/texmf-context/tex/context/base/mkiv/lpdf-pdx.xml' pages > flushing realpage 1, userpage 1, subpage 1 structure > sectioning > chapter @ level 2 : 0.1 -> Espaces probabilisés metapost > initializing instance 'metafun:1' using format 'metafun' and method 'default' metapost > loading 'metafun' as '/home/aragorn/context/tex/texmf-context/metapost/context/base/mpiv/metafun.mpiv' using method 'default' metapost > initializing number mode 'scaled' lua error > lua error on line 10 in file /home/aragorn/Test.tex: ...ext/tex/texmf-context/tex/context/base/mkiv/node-nut.lua:190: attempt to call a nil value (global 'getid') stack traceback: ...ext/tex/texmf-context/tex/context/base/mkiv/node-nut.lua:190: in upvalue 'getexpansion' ...ext/tex/texmf-context/tex/context/base/mkiv/font-mps.lua:343: in function <...ext/tex/texmf-context/tex/context/base/mkiv/font-mps.lua:338> ...ext/tex/texmf-context/tex/context/base/mkiv/font-mps.lua:437: in local 'boxtomp' ...ext/tex/texmf-context/tex/context/base/mkiv/mlib-pps.lua:1894: in function <...ext/tex/texmf-context/tex/context/base/mkiv/mlib-pps.lua:1891> (...tail calls...) 1 %macro=mkiv 2 3 \setuppagenumbering[location=footer] 4 5 \startusableMPgraphic{NumberHead} 6 draw outlinetext.f 7 ("\bf\namedheadnumber{chapter}") 8 (withcolor "lightgray") 9 ysized 50pt ; 10 >> \stopusableMPgraphic 11 12 \unexpanded\def\processMPheadnumber#1% 13 {\useMPgraphic{NumberHead}} 14 15 \setuphead 16 [chapter] 17 [command=\HeadTitle, 18 headstyle=\ss, 19 numbercommand=\processMPheadnumber, 20 ] structure > sectioning > subsection @ level 4 : 0.1.0.1 -> Expérience aléatoire et univers structure > sectioning > subsection @ level 4 : 0.1.0.2 -> Événements lua error > lua error on line 10 in file /home/aragorn/Test.tex: ...ext/tex/texmf-context/tex/context/base/mkiv/node-nut.lua:190: attempt to call a nil value (global 'getid') stack traceback: ...ext/tex/texmf-context/tex/context/base/mkiv/node-nut.lua:190: in upvalue 'getexpansion' ...ext/tex/texmf-context/tex/context/base/mkiv/font-mps.lua:343: in function <...ext/tex/texmf-context/tex/context/base/mkiv/font-mps.lua:338> ...ext/tex/texmf-context/tex/context/base/mkiv/font-mps.lua:437: in local 'boxtomp' ...ext/tex/texmf-context/tex/context/base/mkiv/mlib-pps.lua:1894: in function <...ext/tex/texmf-context/tex/context/base/mkiv/mlib-pps.lua:1891> (...tail calls...) 1 %macro=mkiv 2 3 \setuppagenumbering[location=footer] 4 5 \startusableMPgraphic{NumberHead} 6 draw outlinetext.f 7 ("\bf\namedheadnumber{chapter}") 8 (withcolor "lightgray") 9 ysized 50pt ; 10 >> \stopusableMPgraphic 11 12 \unexpanded\def\processMPheadnumber#1% 13 {\useMPgraphic{NumberHead}} 14 15 \setuphead 16 [chapter] 17 [command=\HeadTitle, 18 headstyle=\ss, 19 numbercommand=\processMPheadnumber, 20 ] pages > flushing realpage 2, userpage 2 close source > level 2, order 3, name '/home/aragorn/Test.tex' close source > level 1, order 3, name '/home/aragorn/context/tex/texmf-context/tex/context/base/mkiv/cont-yes.mkiv' mkiv lua stats > used config file: selfautoparent:/texmf/web2c/texmfcnf.lua mkiv lua stats > used cache path: /home/aragorn/context/tex/texmf-cache/luatex-cache/context/5fe67e0bfe781ce0dde776fb1556f32e mkiv lua stats > resource resolver: loadtime 0.007 seconds, 1 scans with scantime 0.001 seconds, 0 shared scans, 31 found files, scanned paths: /home/aragorn/texmf mkiv lua stats > stored bytecode data: 437 modules (0.256 sec), 93 tables (0.015 sec), 530 chunks (0.271 sec) mkiv lua stats > traced context: maxstack: 1328, freed: 5, unreachable: 1323 mkiv lua stats > cleaned up reserved nodes: 58 nodes, 9 lists of 455 mkiv lua stats > node memory usage: 2 glue, 2 kern, 2 penalty, 14 attribute, 50 glue_spec, 4 attribute_list, 2 temp, 2 user_defined mkiv lua stats > node list callback tasks: 8 unique task lists, 6 instances (re)created, 122 calls mkiv lua stats > used backend: pdf (backend for directly generating pdf output)mkiv lua stats > jobdata time: 0.001 seconds saving, 0.001 seconds loading mkiv lua stats > callbacks: internal: 349, file: 219, direct: 2, late: 4, function 612, total: 1186 (1186 per page) mkiv lua stats > loaded patterns: en::2, load time: 0.000 mkiv lua stats > result saved in file: Test.pdf, compresslevel 3, objectcompresslevel 3 mkiv lua stats > loaded fonts: 5 files: latinmodern-math.otf, lmroman10-bold.otf, lmroman10-regular.otf, lmroman12-bold.otf, lmroman12-regular.otf mkiv lua stats > font engine: otf 3.104, afm 1.513, tfm 1.000, 11 instances, 4 shared in backend, 3 common vectors, 1 common hashes, load time 0.226 seconds mkiv lua stats > metapost: 0.002 seconds, loading: 0.019, execution: 0.001, n: 3, average: 0.007, instances: 1, luacalls: 14, memory: 2.609 M mkiv lua stats > used platform: linux-64, type: unix, binary subtree: texmf-linux-64 mkiv lua stats > used engine: luatex version 1.08 with functionality level 6731, banner: this is luatex, version 1.08.0 (tex live 2018) mkiv lua stats > control sequences: 46548 of 65536 + 100000 mkiv lua stats > lua properties: engine: lua 5.3, used memory: 57 MB (ctx: 56 MB), hash type: lua, hash chars: min(64,40), symbol mask: utf (τεχ) mkiv lua stats > runtime: 0.675 seconds, 2 processed pages, 2 shipped pages, 2.963 pages/second mtx-context | fatal error: return code: 1 TeX Output exited abnormally with code 1 at Tue Aug 21 01:30:10

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Guitar chords
by Lizardo M. Reyna Bowen 20 Aug '18

20 Aug '18

Hi, There is a way to put the guitar chords above of a syllable? I have tried with \high{G} command, but it is not the correct form. The result must be similar to this. https://tex.stackexchange.com/questions/104222/songs-package-chord-size Thanks for you help -- Lizardo

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Change PDF viewer with Scite
by Fabrice Couvreur 20 Aug '18

20 Aug '18

Hello, The default viewer is GhostView. I would like to replace it with Evince. In user mode, I edited the /usr/share/scite/scite-context.properties file to replace the command.2 line. $ (File.patterns.context) = $ (name.context.gsview) $ (FileDir ) / $ (FileName) .pdf by command.2. $ (File.patterns.context) = $ (name.context.evince) $ (FileDir) / $ (FileName) .pdf It does not work . Thank you. Fabrice

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definelabel not working as previously on ConTeXt ver: 2018.08.19 12:52
by Rik Kabel 20 Aug '18

20 Aug '18

With the latest beta, labels do not work for me. With the following code: \definelabel[Q] \starttext Label: \Q[abc] Label: see \in[abc]. Reference: \reference[def]{2} Reference: see \in[def]. \stoptext I get: and the log states: references > unknown reference '[][abc]' while with tl18, I get the expected: -- Rik

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structures.lists.ordered empty in latest beta
by Joseph Canedo 19 Aug '18

19 Aug '18

Hi, I use the global lua table ConTeXt provides called : structures.lists.ordered to perform some manipulations with sections (using structures.lists.ordered.section which is itself a lua table), but from latest beta it seems that that variable (a lua table) is now completely empty. Is this expected ? Thanks a lot Best regards Joseph

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Text wrapped with an ornement
by Fabrice Couvreur 19 Aug '18

19 Aug '18

Hello, Aditya offered me the following code to insert comments with an ornament. I notice that the option alternative= serried does not seem to work. Thank you. Fabrice \definecolor[MyColorA][r=0.8784, g=0.8784, b=0.8784] \definecolor[MyColorB][c=0.00,m=0.27,y=1.00,k=0.00] \defineornament [FrameTitle] [preset=lefttop] [ frame=off, foregroundstyle=\bfx, foregroundcolor=white, background=color, backgroundcolor=MyColorB, ] \defineframedtext [FramedText] [ offset=0.6em, toffset=\lineheight, background=color, backgroundcolor=MyColorA, foregroundstyle={\switchtobodyfont[10pt]}, align=verytolerant, alternative=serried, % text wrapped frame=off, corner=round, ] \showframe \starttext \FrameTitle{Info}{\startFramedText[width=\textwidth] \dorecurse{100}{blabla} \stopFramedText} \stoptext

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