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grph-con.lua /size: 14 Kb last modification: 2020-07-01 14:35
1if
 not
 modules
 then
 modules
 =
 {
 }
 end
 modules
 [
'
grph-con
'
]
 =
 {
2    version
   =
 1
.
001
,
3    comment
   =
 "
companion to grph-inc.mkiv
"
,
4    author
    =
 "
Hans Hagen, PRAGMA-ADE, Hasselt NL
"
,
5    copyright
 =
 "
PRAGMA ADE / ConTeXt Development Team
"
,
6    license
   =
 "
see context related readme files
"
7}
8
9local
 P
,
 R
,
 S
,
 Cc
,
 C
,
 Cs
,
 Ct
,
 lpegmatch
 =
 lpeg
.
P
,
 lpeg
.
R
,
 lpeg
.
S
,
 lpeg
.
Cc
,
 lpeg
.
C
,
 lpeg
.
Cs
,
 lpeg
.
Ct
,
 lpeg
.
match
10
11local
 tonumber
          =
 tonumber
12local
 find
              =
 string
.
find
13local
 longtostring
      =
 string
.
longtostring
14local
 formatters
        =
 string
.
formatters
15local
 expandfilename
    =
 dir
.
expandname
16local
 isfile
            =
 lfs
.
isfile
17
18local
 settings_to_array
 =
 utilities
.
parsers
.
settings_to_array
19local
 settings_to_hash
  =
 utilities
.
parsers
.
settings_to_hash
20local
 allocate
          =
 utilities
.
storage
.
allocate
21local
 setmetatableindex
 =
 table
.
setmetatableindex
22
23local
 codeinjections
    =
 backends
.
codeinjections
24local
 nodeinjections
    =
 backends
.
nodeinjections
25
26local
 report_figures
    =
 logs
.
reporter
(
"
system
"
,
"
graphics
"
)
27
28local
 variables
         =
 interfaces
.
variables
29local
 v_high
            =
 variables
.
high
30local
 v_low
             =
 variables
.
low
31local
 v_medium
          =
 variables
.
medium
32
33local
 figures
           =
 figures
34
35local
 converters
        =
 figures
.
converters
36local
 programs
          =
 figures
.
programs
37
38local
 runprogram
        =
 programs
.
run
39
40do
 -- eps | ps
41
42    -- \externalfigure[cow.eps]
43    -- \externalfigure[cow.pdf][conversion=stripped]
44
45    -- todo: colorspace
46    -- todo: lowres
47
48    local
 epsconverter
 =
 converters
.
eps
49    converters
.
ps
      =
 epsconverter
50
51    local
 resolutions
 =
 {
52        [
v_low
]
    =
 "
screen
"
,
53        [
v_medium
]
 =
 "
ebook
"
,
54        [
v_high
]
   =
 "
prepress
"
,
55    }
56
57    local
 runner
 =
 sandbox
.
registerrunner
 {
58        name
     =
 "
eps to pdf
"
,
59        program
  =
 {
60            windows
 =
 os
.
platform
 =
=
 "
win64
"
 and
 "
gswin64c
"
 or
 "
gswin32c
"
,
61            unix
    =
 "
gs
"
,
62        }
,
63        template
 =
 longtostring
 [[

64            -q
65            -sDEVICE=pdfwrite
66            -dNOPAUSE
67            -dNOCACHE
68            -dBATCH
69            -dAutoRotatePages=/None
70            -dPDFSETTINGS=/%presets%
71            -dEPSCrop
72            -dCompatibilityLevel=%level%
73            -sOutputFile=%newname%
74            %colorspace%
75            %oldname%
76            -c quit
77        
]]
,
78        checkers
 =
 {
79            oldname
    =
 "
readable
"
,
80            newname
    =
 "
writable
"
,
81            presets
    =
 "
string
"
,
82            level
      =
 "
string
"
,
83            colorspace
 =
 "
string
"
,
84        }
,
85    }
86
87    programs
.
epstopdf
 =
 {
 resolutions
 =
 epstopdf
,
 runner
 =
 runner
  }
88    programs
.
gs
       =
 programs
.
epstopdf
89
90    local
 cleanups
    =
 {
 }
91    local
 cleaners
    =
 {
 }
92
93    local
 whitespace
  =
 lpeg
.
patterns
.
whitespace
94    local
 quadruple
   =
 Ct
(
(
whitespace
^
0
 *
 lpeg
.
patterns
.
number
/
tonumber
 *
 whitespace
^
0
)
^
4
)
95    local
 betterbox
   =
 P
(
"
%%BoundingBox:
"
)
      *
 quadruple
96                      *
 P
(
"
%%HiResBoundingBox:
"
)
 *
 quadruple
97                      *
 P
(
"
%AI3_Cropmarks:
"
)
     *
 quadruple
98                      *
 P
(
"
%%CropBox:
"
)
          *
 quadruple
99                      /
 function
(
b
,
h
,
m
,
c
)
100                             return
 formatters
[
"
%%%%BoundingBox: %r %r %r %r\n%%%%HiResBoundingBox: %F %F %F %F\n%%%%CropBox: %F %F %F %F\n
"
]
(
101                                 m
[
1
]
,
m
[
2
]
,
m
[
3
]
,
m
[
4
]
,
 -- rounded integer
102                                 m
[
1
]
,
m
[
2
]
,
m
[
3
]
,
m
[
4
]
,
 -- real number
103                                 m
[
1
]
,
m
[
2
]
,
m
[
3
]
,
m
[
4
]
104                             )
105                         end
106    local
 nocrap
      =
 P
(
"
%
"
)
 /
 "
"
 *
 (
107                             (
P
(
"
AI9_PrivateDataBegin
"
)
 *
 P
(
1
)
^
0
)
                            /
 "
%%%%EOF
"
108                           +
 (
P
(
"
%EOF
"
)
 *
 whitespace
^
0
 *
 P
(
"
%AI9_PrintingDataEnd
"
)
 *
 P
(
1
)
^
0
)
 /
 "
%%%%EOF
"
109                           +
 (
P
(
"
AI7_Thumbnail
"
)
 *
 (
1
-
P
(
"
%%EndData
"
)
)
^
0
 *
 P
(
"
%%EndData
"
)
)
    /
 "
"
110                        )
111    local
 whatever
    =
 nocrap
 +
 P
(
1
)
112    local
 pattern
     =
 Cs
(
(
betterbox
 *
 whatever
^
1
 +
 whatever
)
^
1
)
113
114    directives
.
register
(
"
graphics.conversion.eps.cleanup.ai
"
,
function
(
v
)
 cleanups
.
ai
 =
 v
 end
)
115
116    cleaners
.
ai
 =
 function
(
name
)
117        local
 tmpname
 =
 name
 .
.
 "
.tmp
"
118        io
.
savedata
(
tmpname
,
lpegmatch
(
pattern
,
io
.
loaddata
(
name
)
 or
 "
"
)
)
119        return
 tmpname
120    end
121
122    function
 epsconverter
.
pdf
(
oldname
,
newname
,
resolution
,
colorspace
)
 -- the resolution interface might change
123        local
 presets
  =
 resolutions
[
resolution
 or
 "
high
"
]
 or
 resolutions
.
high
124        local
 level
    =
 codeinjections
.
getformatoption
(
"
pdf_level
"
)
 or
 "
1.3
"
125        local
 tmpname
  =
 oldname
126        if
 not
 tmpname
 or
 tmpname
 =
=
 "
"
 or
 not
 isfile
(
tmpname
)
 then
127            return
128        end
129        if
 cleanups
.
ai
 then
130            tmpname
 =
 cleaners
.
ai
(
oldname
)
131        end
132        if
 colorspace
 =
=
 "
gray
"
 then
133            colorspace
 =
 "
-sColorConversionStrategy=Gray -sProcessColorModel=DeviceGray
"
134         -- colorspace = "-sColorConversionStrategy=Gray"
135        else
136            colorspace
 =
 nil
137        end
138        runner
 {
139            newname
    =
 newname
,
140            oldname
    =
 tmpname
,
141            presets
    =
 presets
,
142            level
      =
 tostring
(
level
)
,
143            colorspace
 =
 colorspace
,
144        }
145        if
 tmpname
 ~
=
 oldname
 then
146            os
.
remove
(
tmpname
)
147        end
148    end
149
150    epsconverter
[
"
gray.pdf
"
]
 =
 function
(
oldname
,
newname
,
resolution
)
 -- the resolution interface might change
151        epsconverter
.
pdf
(
oldname
,
newname
,
resolution
,
"
gray
"
)
152    end
153
154    epsconverter
.
default
 =
 epsconverter
.
pdf
155
156end
157
158-- do -- pdf
159--
160--     local pdfconverter = converters.pdf
161--
162--     programs.pdftoeps = {
163--         runner = sandbox.registerrunner {
164--             name     = "pdf to ps",
165--             command  = "pdftops",
166--             template = [[-eps "%oldname%" "%newname%"]],
167--             checkers = {
168--                 oldname = "readable",
169--                 newname = "writable",
170--             }
171--         }
172--     }
173--
174--     pdfconverter.stripped = function(oldname,newname)
175--         local pdftoeps = programs.pdftoeps -- can be changed
176--         local epstopdf = programs.epstopdf -- can be changed
177--         local presets  = epstopdf.resolutions[resolution or ""] or epstopdf.resolutions.high
178--         local level    = codeinjections.getformatoption("pdf_level") or "1.3"
179--         local tmpname  = newname .. ".tmp"
180--         pdftoeps.runner { oldname = oldname, newname = tmpname, presets = presets, level = level }
181--         epstopdf.runner { oldname = tmpname, newname = newname, presets = presets, level = level }
182--         os.remove(tmpname)
183--     end
184--
185--     figures.registersuffix("stripped","pdf")
186--
187-- end
188
189do
 -- svg
190
191    local
 svgconverter
 =
 converters
.
svg
192    converters
.
svgz
    =
 svgconverter
193
194    -- inkscape on windows only works with complete paths .. did the command line
195    -- arguments change again? Ok, it's weirder, with -A then it's a name only when
196    -- not . (current)
197
198    -- Beware: the order of printed output lines is a bit random depending on the
199    -- method of calling (bin or pipe) because part of the message prints to stdout
200    -- and part to stderr. Also, on Windows, a second call to the old binaries
201    -- doesn't return anything at all, so that is also a signal of it being old.
202    -- This test will be dropped in 2021 anyway.
203
204    local
 new
 =
 nil
205
206    local
 function
 inkscapeformat
(
suffix
)
207        if
 new
 =
=
 nil
 then
208            new
 =
 os
.
resultof
(
"
inkscape --version
"
)
 or
 "
"
209            new
 =
 new
 =
=
 "
"
 or
 not
 find
(
new
,
"
Inkscape%s*0
"
)
210        end
211        return
 new
 and
 "
filename
"
 or
 suffix
212    end
213
214    local
 runner
 =
 sandbox
.
registerrunner
 {
215        name
     =
 "
svg to something
"
,
216        program
  =
 "
inkscape
"
,
217        template
 =
 longtostring
 [[

218            %oldname%
219            --export-dpi=%resolution%
220            --export-%format%=%newname%
221        
]]
,
222        checkers
 =
 {
223            oldname
    =
 "
readable
"
,
224            newname
    =
 "
writable
"
,
225            format
     =
 "
string
"
,
226            resolution
 =
 "
string
"
,
227        }
,
228        defaults
 =
 {
229            format
     =
 format
,
230            resolution
 =
 "
600
"
,
231        }
232    }
233
234    programs
.
inkscape
 =
 {
235        runner
 =
 runner
,
236    }
237
238    function
 svgconverter
.
pdf
(
oldname
,
newname
)
239        runner
 {
240            format
     =
 inkscapeformat
(
"
pdf
"
)
,
241            resolution
 =
 "
600
"
,
242            newname
    =
 expandfilename
(
newname
)
,
243            oldname
    =
 expandfilename
(
oldname
)
,
244        }
245    end
246
247    function
 svgconverter
.
png
(
oldname
,
newname
)
248        runner
 {
249            format
     =
 inkscapeformat
(
"
png
"
)
,
250            resolution
 =
 "
600
"
,
251            newname
    =
 expandfilename
(
newname
)
,
252            oldname
    =
 expandfilename
(
oldname
)
,
253        }
254    end
255
256    svgconverter
.
default
 =
 svgconverter
.
pdf
257
258end
259
260do
 -- gif | tif
261
262    local
 gifconverter
 =
 converters
.
gif
263    local
 tifconverter
 =
 converters
.
tif
264    local
 bmpconverter
 =
 converters
.
bmp
265
266    programs
.
convert
 =
 {
267        command
  =
 "
gm
"
,
 -- graphicmagick
268        argument
 =
 [[
convert "%oldname%" "%newname%"
]]
,
269    }
270
271    local
 function
 converter
(
oldname
,
newname
)
272        local
 convert
 =
 programs
.
convert
273        runprogram
(
convert
.
command
,
 convert
.
argument
,
 {
274            newname
 =
 newname
,
275            oldname
 =
 oldname
,
276        }
 )
277    end
278
279    tifconverter
.
pdf
 =
 converter
280    gifconverter
.
pdf
 =
 converter
281    bmpconverter
.
pdf
 =
 converter
282
283    gifconverter
.
default
 =
 converter
284    tifconverter
.
default
 =
 converter
285    bmpconverter
.
default
 =
 converter
286
287end
288
289do
 -- png | jpg | profiles
290
291    -- ecirgb_v2.icc
292    -- ecirgb_v2_iccv4.icc
293    -- isocoated_v2_300_eci.icc
294    -- isocoated_v2_eci.icc
295    -- srgb.icc
296    -- srgb_v4_icc_preference.icc
297
298    -- [[convert %?colorspace: -colorspace "%colorspace%" ?%]]
299
300    local
 rgbprofile
  =
 "
srgb_v4_icc_preference.icc
"
 -- srgb.icc
301    local
 cmykprofile
 =
 "
isocoated_v2_300_eci.icc
"
   -- isocoated_v2_eci.icc
302
303    directives
.
register
(
"
graphics.conversion.rgbprofile
"
,
 function
(
v
)
 rgbprofile
  =
 type
(
v
)
 =
=
 "
string
"
 and
 v
 or
 rgbprofile
  end
)
304    directives
.
register
(
"
graphics.conversion.cmykprofile
"
,
function
(
v
)
 cmykprofile
 =
 type
(
v
)
 =
=
 "
string
"
 and
 v
 or
 cmykprofile
 end
)
305
306    local
 jpgconverters
 =
 converters
.
jpg
307    local
 pngconverters
 =
 converters
.
png
308
309    local
 function
 profiles
(
)
310        if
 not
 isfile
(
rgbprofile
)
 then
311            local
 found
 =
 resolvers
.
findfile
(
rgbprofile
)
312            if
 found
 and
 found
 ~
=
 "
"
 then
313                rgbprofile
 =
 found
314            else
315                report_figures
(
"
unknown profile %a
"
,
rgbprofile
)
316            end
317        end
318        if
 not
 isfile
(
cmykprofile
)
 then
319            local
 found
 =
 resolvers
.
findfile
(
cmykprofile
)
320            if
 found
 and
 found
 ~
=
 "
"
 then
321                cmykprofile
 =
 found
322            else
323                report_figures
(
"
unknown profile %a
"
,
cmykprofile
)
324            end
325        end
326        return
 rgbprofile
,
 cmykprofile
327    end
328
329    local
 checkers
 =
 {
330        oldname
     =
 "
readable
"
,
331        newname
     =
 "
writable
"
,
332        rgbprofile
  =
 "
string
"
,
333        cmykprofile
 =
 "
string
"
,
334        resolution
  =
 "
string
"
,
335        color
       =
 "
string
"
,
336    }
337
338    local
 defaults
 =
 {
339        resolution
 =
 "
600
"
,
340    }
341
342    local
 pngtocmykpdf
 =
 sandbox
.
registerrunner
 {
343        name
     =
 "
png to cmyk pdf
"
,
344        program
  =
 "
gm
"
,
345        template
 =
 [[
convert -compress Zip  -strip +profile "*" -profile %rgbprofile% -profile %cmykprofile% -sampling-factor 1x1 %oldname% %newname%
]]
,
346        checkers
 =
 checkers
,
347        defaults
 =
 defaults
,
348    }
349
350    local
 jpgtocmykpdf
 =
 sandbox
.
registerrunner
 {
351        name
     =
 "
jpg to cmyk pdf
"
,
352        program
  =
 "
gm
"
,
353        template
 =
 [[
convert -compress JPEG -strip +profile "*" -profile %rgbprofile% -profile %cmykprofile% -sampling-factor 1x1 %oldname% %newname%
]]
,
354        checkers
 =
 checkers
,
355        defaults
 =
 defaults
,
356    }
357
358    local
 pngtograypdf
 =
 sandbox
.
registerrunner
 {
359        name
     =
 "
png to gray pdf
"
,
360        program
  =
 "
gm
"
,
361        template
 =
 [[
convert -colorspace gray -compress Zip -sampling-factor 1x1 %oldname% %newname%
]]
,
362        checkers
 =
 checkers
,
363        defaults
 =
 defaults
,
364    }
365
366    local
 jpgtograypdf
 =
 sandbox
.
registerrunner
 {
367        name
     =
 "
jpg to gray pdf
"
,
368        program
  =
 "
gm
"
,
369        template
 =
 [[
convert -colorspace gray -compress Zip -sampling-factor 1x1 %oldname% %newname%
]]
,
370        checkers
 =
 checkers
,
371        defaults
 =
 defaults
,
372    }
373
374    programs
.
pngtocmykpdf
 =
 {
 runner
 =
 pngtocmykpdf
 }
375    programs
.
jpgtocmykpdf
 =
 {
 runner
 =
 jpgtocmykpdf
 }
376    programs
.
pngtograypdf
 =
 {
 runner
 =
 pngtograypdf
 }
377    programs
.
jpgtograypdf
 =
 {
 runner
 =
 jpgtograypdf
 }
378
379    pngconverters
[
"
cmyk.pdf
"
]
 =
 function
(
oldname
,
newname
,
resolution
)
380        local
 rgbprofile
,
 cmykprofile
 =
 profiles
(
)
381        pngtocmykpdf
 {
382            oldname
     =
 oldname
,
383            newname
     =
 newname
,
384            rgbprofile
  =
 rgbprofile
,
385            cmykprofile
 =
 cmykprofile
,
386            resolution
  =
 resolution
,
387        }
388    end
389
390    pngconverters
[
"
gray.pdf
"
]
 =
 function
(
oldname
,
newname
,
resolution
)
391        pngtograypdf
 {
392            oldname
    =
 oldname
,
393            newname
    =
 newname
,
394            resolution
 =
 resolution
,
395        }
396    end
397
398    jpgconverters
[
"
cmyk.pdf
"
]
 =
 function
(
oldname
,
newname
,
resolution
)
399        local
 rgbprofile
,
 cmykprofile
 =
 profiles
(
)
400        jpgtocmykpdf
 {
401            oldname
     =
 oldname
,
402            newname
     =
 newname
,
403            rgbprofile
  =
 rgbprofile
,
404            cmykprofile
 =
 cmykprofile
,
405            resolution
  =
 resolution
,
406        }
407    end
408
409    jpgconverters
[
"
gray.pdf
"
]
 =
 function
(
oldname
,
newname
,
resolution
)
410        jpgtograypdf
 {
411            oldname
    =
 oldname
,
412            newname
    =
 newname
,
413            resolution
 =
 resolution
,
414        }
415    end
416
417    -- recolor
418
419    local
 recolorpng
 =
 sandbox
.
registerrunner
 {
420        name
     =
 "
recolor png
"
,
421        program
  =
 "
gm
"
,
422        template
 =
 [[
convert -recolor %color% %oldname% %newname%
]]
,
423        checkers
 =
 checkers
,
424        defaults
 =
 defaults
,
425    }
426
427    -- this is now built in so not really needed any more
428
429    programs
.
recolor
 =
 {
 runner
 =
 recolorpng
 }
430
431    pngconverters
[
"
recolor.png
"
]
 =
 function
(
oldname
,
newname
,
resolution
,
arguments
)
432        recolorpng
 {
433            oldname
    =
 oldname
,
434            newname
    =
 newname
,
435            resolution
 =
 resolution
,
436            color
      =
 arguments
 or
 "
.5 0 0 .7 0 0 .9 0 0
"
,
437        }
438    end
439
440end
441
442if
 CONTEXTLMTXMODE
 >
 0
 then
443
444    -- This might also work ok in mkiv but is yet untested. Anyway, it's experimental as we
445    -- go through TeX which is is inefficient. I'll improve the buffer trick.
446
447    local
 function
 remap
(
specification
)
448        local
 fullname
 =
 specification
.
fullname
449        if
 fullname
 then
450            local
 only
 =
 file
.
nameonly
(
fullname
)
451            local
 name
 =
 formatters
[
"
svg-%s-inclusion
"
]
(
only
)
452            local
 code
 =
 formatters
[
"
\\includesvgfile[%s]\\resetbuffer[%s]
"
]
(
fullname
,
name
)
453            buffers
.
assign
(
name
,
code
)
454            specification
.
format
   =
 "
buffer
"
455            specification
.
fullname
 =
 name
456        end
457        return
 specification
458    end
459
460    figures
.
remappers
.
svg
 =
 {
 mp
 =
 remap
 }
461
462end
463
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