* Referring to multiple elements
@ 2012-09-13 10:15 Marco Patzer
2012-09-13 10:48 ` Andreas Mang
0 siblings, 1 reply; 8+ messages in thread
From: Marco Patzer @ 2012-09-13 10:15 UTC (permalink / raw)
To: context
Hi,
how can I refer to multiple elements at the same time?
\starttext
\startplacefigure [title=foo, reference=alpha]
\stopplacefigure
\startplacefigure [title=bar, reference=beta]
\stopplacefigure
\startplacefigure [title=bar, reference=gamma]
\stopplacefigure
\in{figure}[alpha,beta,gamma]
\stoptext
This outputs “figure 1”. What I'd like to have is “figure 1-3”.
Marco
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* Re: Referring to multiple elements
2012-09-13 10:15 Referring to multiple elements Marco Patzer
@ 2012-09-13 10:48 ` Andreas Mang
2012-09-14 7:33 ` Marco Patzer
0 siblings, 1 reply; 8+ messages in thread
From: Andreas Mang @ 2012-09-13 10:48 UTC (permalink / raw)
To: mailing list for ConTeXt users
Hi Marco,
I do not know if there is a solution to this. The following would work for your example:
\in{figure}[alpha]--\in[gamma]
Of course this is a quite rigid solution, that does not safeguard against changes in figure order...So probably not what you were looking for.
Cheers,
Andreas
Am Sep 13, 2012 um 12:15 PM schrieb Marco Patzer:
> Hi,
>
> how can I refer to multiple elements at the same time?
>
> \starttext
>
> \startplacefigure [title=foo, reference=alpha]
> \stopplacefigure
> \startplacefigure [title=bar, reference=beta]
> \stopplacefigure
> \startplacefigure [title=bar, reference=gamma]
> \stopplacefigure
>
> \in{figure}[alpha,beta,gamma]
>
> \stoptext
>
> This outputs “figure 1”. What I'd like to have is “figure 1-3”.
>
>
> Marco
>
> ___________________________________________________________________________________
> 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
> ___________________________________________________________________________________
___________________________________________________________________________________
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
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* Re: Referring to multiple elements
2012-09-13 10:48 ` Andreas Mang
@ 2012-09-14 7:33 ` Marco Patzer
2012-09-14 12:08 ` Sietse Brouwer
0 siblings, 1 reply; 8+ messages in thread
From: Marco Patzer @ 2012-09-14 7:33 UTC (permalink / raw)
To: ntg-context
2012-09-13 Andreas Mang <mang@imt.uni-luebeck.de>:
> I do not know if there is a solution to this. The following would
> work for your example:
>
> \in{figure}[alpha]--\in[gamma]
>
> Of course this is a quite rigid solution, that does not safeguard
> against changes in figure order
That's what I am using at the moment. Apparently there is no such
functionality. This one would go on my wish list.
Marco
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* Re: Referring to multiple elements
2012-09-14 7:33 ` Marco Patzer
@ 2012-09-14 12:08 ` Sietse Brouwer
2012-09-16 12:56 ` Marco Patzer
0 siblings, 1 reply; 8+ messages in thread
From: Sietse Brouwer @ 2012-09-14 12:08 UTC (permalink / raw)
To: mailing list for ConTeXt users
Hi Marco,
The heart of what you need is a lua function that will take an array
of numbers, and return an array of consective-number runs, like so:
fignumarray = {1, 2, 3, 5, 6, 8, 10, 11, 12}
-- figruns = get_runs(fignumarray)
-- returns a table structured like so:
--> figruns[1].start = 1, figruns[1].stop = 3,
--> figruns[2].start = 5, figruns[2].stop = 6,
--> figruns[3].start = 8, figruns[3].stop = 8,
--> figruns[4].start = 10, figruns[4].stop = 12
I've written one below, plus the scaffolding required to feed it the
right input, and print its output to ConTeXt. Only two functions still
need writing --- one to turn the context argument [fig:f1, fig:f2,
fig:f4] into a lua array of strings, and one to turn each reference
string into a figure number. But this should get you on your way.
If you're not comfortable with programming LuaTeX, say so and I can
fill in the two missing functions sometime this weekend. But they
should be doable, really. (And, of course, you may be far more
experienced in LuaTeX than I, I don't know.)
Cheers,
Sietse
% should be below startluacode block, but clearer like so
\def\inwithranges[#1]%
{\ctxlua{u.inwithranges("#1")}}
\startluacode
u = userdata or { }
function get_runs(a)
runs = { }
run_start = 1
while run_start <= #a do
run_stop = run_start
while a[run_stop + 1] == a[run_stop] + 1 do
run_stop = run_stop + 1
end
print(a[run_start] .. "-" .. a[run_stop])
table.insert(runs, {["start"] = a[run_start],
["stop"] = a[run_stop]})
run_start = run_stop + 1
end
return runs
end
function u.inwithranges(ref_string)
-- CTX... means I expect ConTeXt already has this function in a
library somewhere
local ref_array = CTXstring_to_array(refs_string) --FIXME
local ref_numbers = { }
for _, v in ipairs(ref_array) do
ref_numbers[i] = CTXref_to_fignumber(array) --FIXME
end
ref_numbers.sort()
runs = get_runs(ref_numbers)
for i, run in ipairs(runs) do
context.in( {run.start} )
context("-")
context.in( {run.stop} )
if i < #runs then context(',') end
end
end
\stopluacode
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maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context
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* Re: Referring to multiple elements
2012-09-14 12:08 ` Sietse Brouwer
@ 2012-09-16 12:56 ` Marco Patzer
2012-09-28 1:39 ` Sietse Brouwer
0 siblings, 1 reply; 8+ messages in thread
From: Marco Patzer @ 2012-09-16 12:56 UTC (permalink / raw)
To: ntg-context
2012-09-14 Sietse Brouwer <sbbrouwer@gmail.com>:
Hi Sietse,
I'm sorry for my late reply.
> The heart of what you need is a lua function that will take an array
> of numbers, and return an array of consective-number runs, like so:
>
> […]
>
> I've written one below, plus the scaffolding required to feed it the
> right input, and print its output to ConTeXt.
I wonder if this function is not already present in ConTeXt. The
register mechanism, for instance, already does something very
similar:
\setupregister
[index]
[compress=yes]
\starttext
A\index{A} \page
A\index{A} \page
aaa \page
bbb \page
A\index{A} \page
A\index{A} \page
A\index{A}
\placeindex %% => A 1-2, 5-7
\stoptext
> Only two functions still need writing --- one to turn the context
> argument [fig:f1, fig:f2, fig:f4] into a lua array of strings, and
> one to turn each reference string into a figure number.
I'm quite sure that all the building blocks are already present. I'm
not sure about the case when the float number is preceded by a
chapter number.
> If you're not comfortable with programming LuaTeX, say so and I can
> fill in the two missing functions sometime this weekend. But they
> should be doable, really.
Someone with more expertise and knowledge about the ConTeXt
internals should be able to point to the relevant functions. I guess
the code that produces the index compression is located in
registers.flush() in strc-reg.lua, but apparently it's not a
function and I don't know if it can be adopted for the float
referencing.
> (And, of course, you may be far more experienced in LuaTeX than I,
> I don't know.)
Probably not. I can read and write simple Lua scripts, but I lack
knowledge about the LuaTeX and ConTeXt internals and the data
structures used. For LuaTeX there is a manual that explains a lot,
but it doesn't help figuring out how ConTeXts float referencing
mechanism works.
Thanks for the work you spend on this. I don't need this function
for the current project (I use the workaround), but I would like to
see this feature in ConTeXt. If you have time and expertise to
implement this, it would be great. Otherwise I'll do the range
referencing manually.
Regards
Marco
___________________________________________________________________________________
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
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archive : http://foundry.supelec.fr/projects/contextrev/
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* Re: Referring to multiple elements
2012-09-16 12:56 ` Marco Patzer
@ 2012-09-28 1:39 ` Sietse Brouwer
2012-09-28 8:56 ` Marco Patzer
0 siblings, 1 reply; 8+ messages in thread
From: Sietse Brouwer @ 2012-09-28 1:39 UTC (permalink / raw)
To: mailing list for ConTeXt users, Hans Hagen
[-- Attachment #1: Type: text/plain, Size: 1232 bytes --]
Hi Marco,
(PS for Hans),
Marco wrote:
> \in{figure}[alpha,beta,gamma]
>
> This outputs “figure 1”. What I'd like to have is “figure 1-3”.
The attached quasi-module seems to do it! On my computer, at least. (I
call it 'quasi' because it is really nothing more than code in a file
of its own. No configurability whatsoever, except to the extent that I
tried to comment well, and split things up into functions.) I'd have
written it so that it properly identifies runs like '1.2.1, 1.2.2,
1.2.3', too, but I can't find a function that will turn reference
strings into such a prefixed strings.
I hope it does what you want! Let me know if you want/need any
alterations, or discover bugs.
Sietse
PS @Hans: if figure numbers have prefix segments, is there any
(combination of) helper function that will return e.g. the string
'1.2.3' given the reference string "ref:fig-three"? I found
commands.savedlistprefixednumber(nil, numberinlist), but that is a
wrapper around sections.typesetnumber; and that last function injects
the string into the TeX stream instead of returning it. Is there
another function I haven't found yet that will do this, or are
prefixes implemented print-only at the moment?
[-- Attachment #2: inwithranges.mkiv --]
[-- Type: application/octet-stream, Size: 100 bytes --]
\ctxlua{require('inwithranges')}
\def\inwithranges[#1]{\ctxlua{
userdata.inwithranges('#1')
}}
[-- Attachment #3: inwithranges.lua --]
[-- Type: application/octet-stream, Size: 3752 bytes --]
-- Create a function that turns
-- \refwithranges[fig:a, fig:b, fig:c, fig:x, fig:z]
-- into
-- Figures 1-3,24,26
local report = logs.reporter("inwithranges")
local errorcode = -99
-- Given an array of numbers, return an array of runs in that list.
-- Each run is itself an array with elements ["start"] and ["stop"]
-- Pre-sorting is left in the user's hands
local function get_runs(a)
runs = { }
run_start = 1
while run_start <= #a do
run_stop = run_start
-- TODO replace a[run_stop] + 1 with
-- increment_number_string(a[run_stop])
-- that turns '1.2.1' into '1.2.2'
-- so we can get runs among prefixed numbers, too.
if a[run_stop] <= -100 then
report("Ignoring entry %d", a[run_stop])
else
while a[run_stop + 1] == a[run_stop] + 1 do
run_stop = run_stop + 1
end
report("%s--%s", run_start, run_stop)
table.insert(runs, {["start"] = a[run_start],
["stop"] = a[run_stop]})
end
run_start = run_stop + 1
end
return runs
end
-- Given a reference string, return the figure/section/table number
-- Yes, invoking this on multiple strings operates in quadratic time.
-- Solution: assume n to be small
-- A helper function for this should exist somewhere
local function number_from_ref(refstring)
-- TODO ensure we only run when structures.lists.ordered.float
-- already exists
for k,v in pairs(structures.lists.ordered.float.figure) do
-- TODO if we return the full '1.2.1' string here
-- then adapt get_runs as stated there, we can process prefixed
-- numbers, too.
if refstring == v.references.reference then
report("%s --> %d", refstring, v.numberdata.numbers[1])
return v.numberdata.numbers[1]
end
end
errorcode = errorcode - 1
report("Unknown reference: %s, returning %d", refstring, errorcode)
return errorcode
end
-- Input: an array of runs,
-- Action: print something like '1, 3-5, and 8'
local function typeset_runs(runs, args)
args = args or { }
range_char = args["range_char"] or '-'
run_sep = args["run_sep"] or ', '
last_sep = args["last_sep"] or run_sep
local i = 0
require('showtable')
userdata.showtable(runs)
for _, run in pairs(runs) do
if 0 < i and i < #runs - 1 then
context(run_sep)
end
if 0 < i and i == #runs - 1 then
context(last_sep)
end
i = i + 1
context("\\in[%s]", run.start)
if run.start ~= run.stop then
context("%s\\in[%s]", range_char, run.stop)
end
end
end
-- User-facing function:
local function inwithranges(str)
if not structures.lists.ordered["float"] then
-- float table does not yet exist, do nothing this run
return false
end
local refstrings_unsorted = utilities.parsers.settings_to_array(str)
local refstrings = { }
local numbers = { }
-- turn refstrings into numbers, and remember what goes with what
for _, ref in pairs(refstrings_unsorted) do
local n = number_from_ref(ref)
table.insert(numbers, n)
refstrings[n] = ref
end
-- sort the numbers, and turn them into a runs table
table.sort(numbers)
local runs = get_runs(numbers)
-- replace the numbers in the runs table with refstrings, and
-- typeset
for k, run in pairs(runs) do
runs[k].start = refstrings[run.start]
runs[k].stop = refstrings[run.stop]
end
typeset_runs(runs, {last_sep = ' and '})
end
userdata = userdata or { }
u = userdata
u.get_runs = get_runs
u.inwithranges = inwithranges
[-- Attachment #4: test-inwithranges.tex --]
[-- Type: application/x-tex, Size: 1426 bytes --]
[-- Attachment #5: test-inwithranges.pdf --]
[-- Type: application/pdf, Size: 13975 bytes --]
[-- Attachment #6: Type: text/plain, Size: 485 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] 8+ messages in thread
* Re: Referring to multiple elements
2012-09-28 1:39 ` Sietse Brouwer
@ 2012-09-28 8:56 ` Marco Patzer
2012-09-28 11:28 ` Sietse Brouwer
0 siblings, 1 reply; 8+ messages in thread
From: Marco Patzer @ 2012-09-28 8:56 UTC (permalink / raw)
To: ntg-context
2012-09-28 Sietse Brouwer <sbbrouwer@gmail.com>:
Hi Sietse,
> > \in{figure}[alpha,beta,gamma]
> >
> > This outputs “figure 1”. What I'd like to have is “figure 1-3”.
>
> The attached quasi-module seems to do it! On my computer, at least. (I
> call it 'quasi' because it is really nothing more than code in a file
> of its own.No configurability whatsoever, except to the extent that I
> tried to comment well, and split things up into functions.) I'd have
> written it so that it properly identifies runs like '1.2.1, 1.2.2,
> 1.2.3', too, but I can't find a function that will turn reference
> strings into such a prefixed strings.
>
> I hope it does what you want! Let me know if you want/need any
> alterations, or discover bugs.
Thanks a lot for that. I'd adjust the interface, so that it matches
the behaviour of \in:
\def\inrange
{\dodoublegroupempty\doinrange}
\def\doinrange#left#right#dummy[#label]
{\iffirstargument
{#left }%%
\fi
\ctxlua{userdata.inwithranges("#label")}%%
\ifsecondargument
{#right}%%
\fi}
Then you can write:
See \inrange{figures} [fig:a,fig:c,fig:d,fig:e,fig:g,fig:x,fig:h]
See \inrange{figures}{TT} [fig:a,fig:c,fig:d,fig:e,fig:g,fig:x,fig:h]
See \inrange [fig:a,fig:c,fig:d,fig:e,fig:g,fig:x,fig:h]
Maybe worth mentioning: You need the additional module
`showtable.lua` from http://article.gmane.org/gmane.comp.tex.context/78336
Marco
___________________________________________________________________________________
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] 8+ messages in thread
* Re: Referring to multiple elements
2012-09-28 8:56 ` Marco Patzer
@ 2012-09-28 11:28 ` Sietse Brouwer
0 siblings, 0 replies; 8+ messages in thread
From: Sietse Brouwer @ 2012-09-28 11:28 UTC (permalink / raw)
To: mailing list for ConTeXt users
Hi Marco,
Marco wrote:
> Maybe worth mentioning: You need the additional module
> `showtable.lua` from http://article.gmane.org/gmane.comp.tex.context/78336
Oops, that was a debugging statement. Removed.
> Thanks a lot for that. I'd adjust the interface, so that it matches
> the behaviour of \in:
> See \inrange{figures} [fig:a,fig:c,fig:d,fig:e,fig:g,fig:x,fig:h]
> See \inrange{figures}{TT} [fig:a,fig:c,fig:d,fig:e,fig:g,fig:x,fig:h]
> See \inrange [fig:a,fig:c,fig:d,fig:e,fig:g,fig:x,fig:h]
Done. New version uploaded to Github:
https://github.com/sietse/context-inrange
Cheers,
Sietse
___________________________________________________________________________________
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
___________________________________________________________________________________
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2012-09-13 10:15 Referring to multiple elements Marco Patzer
2012-09-13 10:48 ` Andreas Mang
2012-09-14 7:33 ` Marco Patzer
2012-09-14 12:08 ` Sietse Brouwer
2012-09-16 12:56 ` Marco Patzer
2012-09-28 1:39 ` Sietse Brouwer
2012-09-28 8:56 ` Marco Patzer
2012-09-28 11:28 ` Sietse Brouwer
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