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→‎Introduction
=Introduction=
 
'''After [http://www.ntg.nl/EuroTeX2009 eurotex meeting 2009],
I'm going to fix some typos here and there and
maybe expand some examples too. I estimated that around 20 September article and site will be in synch.'''
 
 
----
'''!! W A R N I N G !! '''
* ghostscript 8.64 ✔ [[#Ghostscript|here]]
* graphviz 2.24.0 ✔ [[#Graphviz|here]]
* ImageMagick-6.4.9 with pythonmagickwand ✔[[#ImageMagick|here]]
* fontforge 20090224 ✔ [[#Fontforge|here]] Useful to check symbols collision, and if one want to play with the last fontforge, eg to draw the outline of a glyph .
* R-2.8.1 with rpy2-2.0.3 (For Maurizio "Mau" Himmelman , GUIT) ✔ [[#R|here]] (see someone says also [http://micahelliott.com/2009/03/considering-r-as-python-supplement hereconsidering-r-as-python-supplement ]) .* quantlib 0.9.7 ✔ (need an example with output in pdf)* dbxml-2.4.16 (and sqlite) ✔[[#dbxml|here]]
= Dedicated systems =
$HOME_LUN/sage/local/bin/python setup.py build
cd $HOME_LUN
mkdir tests-SAGEMATH && cd tests-SAGEMATH
##
## I have already installed prev. python.so, I don't want mess things
[[Image:Test-ode.png|900px]]
 
 
(other examples follows...)
==ROOT (CERN) ==
For more infos, see [http://root.cern.ch here] ([http://root.cern.ch/cgi-bin/print_hit_bold.pl/root/HowtoPyROOT.html?python#first_hit here] for python stuffs).
Under Linux installation is not difficult at all, so but in this case I choose to not create a luatex-lunatic apart, as done above for sagemath.<br/>See an example [[#ROOT| here]] . = ConTeXt mkIV examples=Here I will collect some tex snippets,just to show some ideas. == Scipy ==Watch how python code <tt> z = x*np.exp(-x**2-y**2) </tt>is translated in lua code <tt> z = x.__mul__( np.exp( (x.__pow__(2).__add__(y.__pow__(2))).__neg__() ) )</tt>
This example shot how to literally embed
original python source code .
{| class="wikitable" <table>|-<tr>|<td><texcode>
\startluacode
function testSCIPYtest_ROOT(figname,dpifilename)
require("python")
pg = python.globals()
python.apply = python.eval('apply') or {}
np = python.import("numpy")
mlab = python.import("matplotlib.mlab")
griddata = mlab.griddata
plt = python.import("matplotlib.pyplot")
ma = np.ma
random = python.import("numpy.random")
uniform = random.uniform
-- make up some randomly distributed data npts = 200 x = uniform(-2,2,npts) y = uniform(-2,2,npts) -- z = x*nppython.expexecute(-x**2-y**2)[[ z = x.__mul__( np.exp( (x.__pow__def run(2).__add__(y.__pow__(2))).__neg__() ) ) -- define grid. xi = np.linspace(-2.1,2.1,100filename): yi = np.linspace(-2.1 from ROOT import TCanvas,2.1,100)TGraph -- grid the data. from ROOT import gROOT zi = griddata(x,y,z,xi,yi) from math import sin -- contour the gridded data, plotting dots from array import array -- at the randomly spaced data points. -- we put this in python globals space -- CS = plt gROOT.contourReset(xi,yi,zi,15,linewidths=0.5,colors='k') pg.xi = xi ; pg.yi = yi ; pg.zi = zi args c1 = python.evalTCanvas("[xi,yi,zi,15]") kv = python.eval("{'linewidthc1': 0.5 ,'colors' :'kA Simple Graph Example'}") CS = python.apply(plt.contour, args,kv) -- pg.jet = plt.cm.jet args = python.eval("[xi200,yi10,zi700,15]"500 ) kv = python.eval("{'cmap': jet}") CS = python c1.applySetFillColor(plt.contourf, args,kv42 ) -- draw colorbar plt c1.colorbarSetGrid() -- plot data points. pg.x n = x; pg.y = y 20 args = python.eval("[ x,y]") kv = python.evalarray("{'marker': 'od'), array( 'cd':'b','s':5}") CS = python.apply(plt.scatter, args,kv) plt.xlim(-2,2) plt.ylim for i in range(-2,2n ): plt x.titleappend(string0.format('griddata test (%1*i points)',npts)) --plt y.savefigappend(figname, dpi, 'white') -- pg.figname = figname ; pg.dpi = dpi args = python.eval10*sin("x[fignamei]") kv = python+0.eval("{'dpi': dpi ,'facecolor' :'white'}"2 ) CS = python.apply(plt.savefig, args,kv)end\stopluacode
gr = TGraph( n, x, y ) gr.SetLineColor( 2 ) gr.SetLineWidth( 4 ) gr.SetMarkerColor( 4 ) gr.SetMarkerStyle( 21 ) gr.SetTitle( 'a simple graph' ) gr.GetXaxis().SetTitle( 'X title' )\def\testSCIPY[#1]{% gr.GetYaxis().SetTitle( 'Y title' ) gr.Draw( 'ACP' ) c1.Update() c1.Print(filename)\getparameters[scipy][#1]%)\ctxlua{testSCIPY run = pg.run run("\csname scipyfigname\endcsname",filename) "\csname scipydpi\endcsname")}%end\externalfigure[\csname scipyfigname\endcsname]%}stopluacode
\starttext
\startTEXpage
\testSCIPYctxlua{test_ROOT("testsin.pdf")}\rotate[fignamerotation=90]{test-scipy-1\externalfigure[testsin.pdf},dpi][width={1505cm]}]
\stopTEXpage
\stoptext
</texcode>|| </td><td> [[Image:Test-scipyTestsin.pngjpg|600px512px]] </td> |}</tr></table>
== Python Imaging Library We can do a bit better: separate python code from lua code .<br/>Save this in <tt>test-ROOT1.py</tt> (PILso it's also easy to test) ==:<pre>from ROOT import TCanvas, TGraph ,TGraphErrors,TMultiGraph{| class="wikitable" from ROOT import gROOT|-from math import sin|<texcode>from array import array\startluacodefunction testPILdef run(imageorig,imagesepiafilename): require c1 = TCanvas("pythonc1") PIL_Image = python.import(,"PIL.Imagemultigraph",200,10,700,500) PIL_ImageOps = python c1.importSetGrid("PIL.ImageOps") python.execute([[def make_linear_ramp # draw a frame to define the range mg = TMultiGraph(white): ramp = []# create first graph r, g, b n = white24; for i in x = array('d',range(25524)): ramp data = file('data').extend(readlines(r*i/255, g*i/255, b*i/255)) return ramp]])for line in data: -- make sepia ramp line = line.strip(tweak color as necessary) sepia y = python.evalarray("make_linear_ramp'd',[float(d) for d in line.split(255, 240, 192))"]) im gr = PIL_Image.open TGraph(imageorign,x,y) -- convert to grayscale if not gr.Fit(im.mode == "Lpol6") then im = im.convert(,"Lq") end -- optional: apply contrast enhancement here, e.g. im = PIL_ImageOps mg.autocontrastAdd(imgr)
-- apply sepia palette immg.putpaletteDraw(sepia"ap")
-- convert back #force drawing of canvas to RGB so we can save it as JPEGgenerate the fit TPaveStats -- c1.Update(alternatively, save it in PNG or similar) im = imc1.convertPrint("RGB"filename)
im</pre>Here file 'data' is a 110 lines file with 24 floats values space separated,ie <br/><tt> 20.save6000 19.4000 19.4000 18.3000 17.8000 16.1000 16.7000 21.1000 23.3000 26.1000 26.1000 27.2000 27.8000 28.3000 28.3000 27.2000 25.6000 22.8000 21.7000 21.7000 21.7000 21.7000 21.7000 21.7000 </tt>.<br/>Now a tex file, with a simple layer in lua as interface for python:{||-|<texcode>\startluacodefunction test_ROOT(filename) require("python") test = python.import('test-ROOT1') test.run(imagesepiafilename)
end
\stopluacode
 
\def\SepiaImage#1#2{%
\ctxlua{testPIL("#1","#2")}%
\startcombination[2*1]
{\externalfigure[#1]}{\ss Orig.}
{\externalfigure[#2]}{\ss Sepia}
\stopcombination
}
 
\starttext
\startTEXpage
\SepiaImagectxlua{lenatest_ROOT("data.jpgpdf")}\rotate[rotation=90]{lena-sepia\externalfigure[data.jpgpdf]}
\stopTEXpage
\stoptext
</texcode> || [[Image:Test-PILROOT1.pngjpg|330px300px]]
|}
=ConTeXt mkIV examples= ROOT ==This example shot how Here I will collect some tex snippets,just to literally embedoriginal python source code show some ideas.
== Scipy ==Watch how python code <tt> z = x*np.exp(-x**2-y**2) </tt>is translated in lua code <tt> z = x.__mul__( np.exp( (x.__pow__(2).__add__(y.__pow__(2))).__neg__() ) )</tt>  {|class="wikitable"
|-
|<texcode>
\startluacode
function test_ROOTtestSCIPY(filenamefigname,dpi)
require("python")
pg = python.globals()
python.apply = python.eval('apply') or {}
np = python.import("numpy")
mlab = python.import("matplotlib.mlab")
griddata = mlab.griddata
plt = python.import("matplotlib.pyplot")
ma = np.ma
random = python.import("numpy.random")
uniform = random.uniform
python.execute([[-- make up some randomly distributed data npts = 200def run x = uniform(filename-2,2,npts): from ROOT import TCanvas y = uniform(-2, TGraph2,npts) from ROOT import gROOT -- z = x*np.exp(-x**2-y**2) from math import sin z = x.__mul__( np.exp( (x.__pow__(2).__add__(y.__pow__(2))).__neg__() ) ) from array import array -- define grid. xi = np.linspace(-2.1,2.1,100)  gROOT yi = np.Resetlinspace(-2.1,2.1,100) -- grid the data. c1 zi = TCanvasgriddata( 'c1'x, 'A Simple Graph Example'y, 200z, 10xi, 700, 500 yi) -- contour the gridded data, plotting dots c1 -- at the randomly spaced data points.SetFillColor( 42 ) c1 -- we put this in python globals space -- CS = plt.SetGridcontour(xi,yi,zi,15,linewidths=0.5,colors='k') pg.xi = xi ; pg.yi = yi ; pg.zi = zi n args = 20python.eval("[xi,yi,zi,15]") x, y kv = arraypython.eval( "{'dlinewidth' ): 0.5 , array( 'dcolors' :'k' }")  for i in range CS = python.apply( n plt.contour, args,kv): x -- pg.jet = plt.append( 0cm.1*i )jet y args = python.append( 10*sineval( x"[ixi,yi,zi,15]+0") kv = python.2 ) eval("{'cmap': jet}")  gr CS = TGraphpython.apply( nplt.contourf, xargs, y kv) gr -- draw colorbar plt.SetLineColorcolorbar( 2 ) gr -- plot data points.SetLineWidth( 4 ) gr pg.x = x; pg.SetMarkerColor( 4 )y = y gr args = python.SetMarkerStyleeval( 21 "[x,y]") gr kv = python.SetTitleeval( "{'marker': 'o'a simple graph, ' c':'b','s':5}") gr CS = python.GetXaxisapply(plt.scatter, args,kv) plt.SetTitlexlim( 'X title' -2,2) gr plt.GetYaxisylim(-2,2) plt.title(string.SetTitleformat( 'Y titlegriddata test (%i points)' ,npts)) gr --plt.Drawsavefig( figname, dpi, 'ACPwhite' ) c1 -- pg.figname = figname ; pg.Update()dpi = dpi c1 args = python.Printeval(filename)]"[figname]") run kv = pgpython.runeval("{'dpi': dpi ,'facecolor' :'white'}") runCS = python.apply(filenameplt.savefig, args,kv)
end
\stopluacode
 
 
\def\testSCIPY[#1]{%
\getparameters[scipy][#1]%
\ctxlua{testSCIPY("\csname scipyfigname\endcsname",
"\csname scipydpi\endcsname")}%
\externalfigure[\csname scipyfigname\endcsname]%
}
\starttext
\startTEXpage
\ctxluatestSCIPY[figname={test_ROOT("testsintest-scipy-1.pdf")}\rotate[rotation,dpi=90]{\externalfigure[testsin.pdf][width=5cm150}]}
\stopTEXpage
\stoptext
</texcode> || [[Image:TestsinTest-scipy.jpgpng|512px600px]]
|}
We can do a bit better: separate python code from lua code .<br/>Save this in <tt>test-ROOT1.py</tt> == Python Imaging Library (so it's also easy to testPIL) :<pre>from ROOT import TCanvas, TGraph ,TGraphErrors,TMultiGraphfrom ROOT import gROOTfrom math import sinfrom array import array==
def run{| class="wikitable" |-|<texcode>\startluacodefunction testPIL(filenameimageorig,imagesepia): c1 = TCanvas require("c1python",) PIL_Image = python.import("multigraphPIL.Image",200,10,700,500) c1 PIL_ImageOps = python.SetGridimport("PIL.ImageOps") python.execute([[ # draw a frame to define the range mg = TMultiGraphdef make_linear_ramp(white): # create first graphramp = [] n r, g, b = 24;white x = array('d',for i in range(24)255): data = file ramp.extend(('data'r*i/255, g*i/255, b*i/255).readlines() for line in data:return ramp]]) line = line.strip -- make sepia ramp (tweak color as necessary) y sepia = arraypython.eval("make_linear_ramp('d'(255,[float(d240, 192))") for d in line im = PIL_Image.splitopen(imageorig)]) gr -- convert to grayscale if not(im.mode == TGraph(n,x,y"L") then grim = im.Fitconvert("pol6L") end -- optional: apply contrast enhancement here,"q")e.g. mg im = PIL_ImageOps.Addautocontrast(grim)  mg-- apply sepia palette im.Drawputpalette("ap"sepia)  #force drawing of canvas -- convert back to generate the fit TPaveStatsRGB so we can save it as JPEG c1.Update-- (alternatively, save it in PNG or similar) c1im = im.Printconvert(filename"RGB")
</pre>Here file 'data' is a 110 lines file with 24 floats values space separated,ie <br/><tt> 20 im.6000 19.4000 19.4000 18.3000 17.8000 16.1000 16.7000 21.1000 23.3000 26.1000 26.1000 27.2000 27.8000 28.3000 28.3000 27.2000 25.6000 22.8000 21.7000 21.7000 21.7000 21.7000 21.7000 21.7000 </tt>.<br/>Now a tex file, with a simple layer in lua as interface for python:{||-|<texcode>\startluacodefunction test_ROOT(filename) require("python") test = python.import('test-ROOT1') test.runsave(filenameimagesepia)
end
\stopluacode
\def\SepiaImage#1#2{%\ctxlua{testPIL("#1","#2")}%\startcombination[2*1]{\externalfigure[#1]}{\ss Orig.}{\externalfigure[#2]}{\ss Sepia}\stopcombination}  \starttext
\startTEXpage
\ctxluaSepiaImage{test_ROOT("datalena.pdf")jpg}\rotate[rotation=90]{\externalfigure[datalena-sepia.pdf]jpg}
\stopTEXpage
\stoptext
</texcode> || [[Image:Test-ROOT1PIL.jpgpng|300px330px]]
|}
== Fontforge ==
In this example, we will use Metapost to draw a bezier curve of a glyph (''Note: starting from Metapost 1.200 it is now possible to get the actual path drawing routines from a font glyph, so this example is only to show how to translate a path in metapost'').<br/>
We will use 3-layer approach:
# a python layer that export a class,
# a lua layer to manage objects of this class
# a (con)TeX(t) layer that exports macros, because tex works very well with macros .
Let's start with python code, <tt>test-fontforge.py</tt>:
<pre>
import sys
import fontforge
== ImageMagick ==
''ImageMagick® '' ([http://www.imagemagick.org/script/index.php here]) ''is a software suite to create, edit, and compose bitmap images. It can read, convert and write images in a variety of formats (over 100) including DPX, EXR, GIF, JPEG, JPEG-2000, PDF, PhotoCD, PNG, Postscript, SVG, and TIFF. Use ImageMagick to translate, flip, mirror, rotate, scale, shear and transform images, adjust image colors, apply various special effects, or draw text, lines, polygons, ellipses and Bézier curves.
''
There are at least two python bindings, and this time I consider
[http://www.procoders.net/?p=39 PythonMagickWand] which is a binding "ala" ctypes way .
class simpledraw(object):Code is simple<texcode>\usetypescriptfile[type-gentium]\usetypescript[gentium]\setupbodyfont[gentium,10pt]\setuppapersize[A5][A5]\setuplayout[height=middle,topspace=1cm,header={2\lineheight},footer=0pt,backspace=1cm,margin=1cm, width=middle]
def __init__(self,font_file):
self.font = fontforge.open(font_file)
def getcurve\startluacodefunction testimagemagick(selfbox,lettert): self.glname = letter local w res = dict() try : glyph_letter = [ g for g in self.font.glyphs() if g.glyphname == self.glname][0] local h except Exception ,e : local d res['err'] = str(e) local f return local res cnt= glyph_letter118.layers[1][0]11023622047244094488 -- 300 dpi res['is_quadratic'] local opacity = cnt.is_quadratic25 res['closed'] local sigma = cnt.closed15 res['points'] = [(p. local x,p.y,"%i" %p.on_curve) for p in cnt ] res['design_size'] = self.font.design_size10 res['em'] local y = self.font.em return res10
require("python")
pg = python.globals()
PythonMagickWand = python.import("PythonMagickWand")
w = math.floor((tex.wd[box] / 65536 ) / 72.27 * 2.54 * res )
h = math.floor(((tex.ht[box] / 65536) + (tex.dp[box] / 65536)) / 72.27 *2.54 *res )
f = string.format("%s.png",t)
def getmpostoutline wand = PythonMagickWand.NewMagickWand(self,letter): res background = selfPythonMagickWand.getcurveNewPixelWand(letter0) path = ' -- PythonMagickWand.MagickNewImage(wand,w,h,background) PythonMagickWand.'.joinMagickNewImage( [str((p[0]wand,w,h,p[1]background)) for p in res['points'] if p[2] == '1'] ) return path
def getmpostpoints PythonMagickWand.MagickSetImageResolution(selfwand,letterres,res): res = self PythonMagickWand.getcurveMagickSetImageUnits(letterwand,PythonMagickWand.PixelsPerCentimeterResolution) path = [str PythonMagickWand.MagickShadowImage(wand,opacity,sigma,x,y) PythonMagickWand.MagickWriteImage(p[0]wand ,p[1])f) for p in res['points'] if p[2] == '1'] return path
def getmpostpointsSugar print(selfw,letter): res = self.getcurve(letterh,f) path = 'drawdot '.join( ["%s;" %str((p[0],p[1])) for p in res['points'] if p[2] == '1'] )end return 'drawdot ' +path\stopluacode
if __name__ == '__main__':
s = simpledraw("koeieletters.pfb")
res = s.getmpostpointsSugar('C')
print res
</pre>
 
Note the <tt>'__main__'</tt> check, so we can test this class from python. <br/>
Next lua layer, which in this case is embed in a tex file:
<texcode>
\startluacode
function testFontforge(fontfile,letter)
require("python")
testoutlines = python.import("test-fontforge")
s = testoutlines.simpledraw(fontfile)
g = s.getmpostoutline(letter)
p = s.getmpostpointsSugar(letter)
tex.sprint(tex.ctxcatcodes,"\\startMPcode")
tex.sprint(tex.ctxcatcodes,"pickup pencircle scaled 1pt;")
tex.sprint(tex.ctxcatcodes,string.format("draw %s .. cycle;",g) )
tex.sprint(tex.ctxcatcodes,"pickup pencircle scaled 8pt;")
tex.sprint(tex.ctxcatcodes,string.format("%s",p) )
tex.sprint(tex.ctxcatcodes,"\\stopMPcode")
end
\stopluacode
\def\testimagemagick[#1]{%
\getparameters[imagemagick][#1]%
\ctxlua{testimagemagick(\csname imagemagickbox\endcsname,"\csname imagemagickfilename\endcsname")}%
}
\newcount\shdw\long\def\Outline[startShadowtext#1\stopShadowtext{%\bgroup%\setbox0=\vbox{#1}%\testimagemagick[box=0,filename={shd-\the\shdw}]{%%%\getparametersdefineoverlay[testbackg][#1{\externalfigure[shd-\the\shdw.png]}]%\ctxluaframed[background=backg,frame=off,offset=4pt]{testFontforge("\testfontfile", "box0}%%%\framed{\testletter")box0}\global\advance\shdw by 1%\egroup%
}
\starttext
\startTEXpage\Outline[letter={C}, fontfile={lmmono10-regular.otf}]%\Outline[letter={o}, fontfile={lmmono10-regular.otf}]startShadowtext%\Outline[letter={n}, fontfile={lmmono10-regular.otf}]%input tufte\Outline[letter={T}, fontfile={lmmono10-regular.otf}]%\Outline[letter={e}, fontfile={lmmono10-regular.otf}]%\Outline[letter={X}, fontfile={lmmono10-regular.otf}]%\Outline[letter={t}, fontfile={lmmono10-regular.otf}]stopShadowtext%\stopTEXpage\stoptext</texcode>And here is the result:
Here we use <tt>tex.sprint(tex.ctxcatcodes,"\\stopMPcode")</tt> to inject tex code (actually Metapost code) into TeX parser .<br/><tt>\Outline</tt> is the TeX layer: of course one can write <tt>\Outline</tt> and <tt>testFontforge</tt> in a different manner to avoid use of tex.sprint(..) <br/>And this is the result: <br/>[[Image:Test-fontforgeimagemagick.png|900px]]
...ok,it's not correct (why?), but it looks funny :) == Ghostscript Fontforge ==There are essentially 2 kind of In this example, we will use Metapost to draw a bezier curve of ghostscript a glyph (''Note:* convert an existing eps / ps file in pdf ;* use starting from Metapost 1.200 it is now possible to get the actual path drawing routines from a program in postscript that take an inputfont glyph, do something and make so this example is only to show how to translate a ps output ( e.g. a barcode/label generator path in metapost''). For the first case, we consider an implementation of eps2pdf, being ps2pdf virtually the same .<br/>Actually there is not We will use 3-layer approach:# a python binding of ghostscriptlayer that export a class, so we build # a simple wrapper lua layer to manage objects of this classusing ctypes module# a (con)TeX(t) layer that exports macros, because tex works very well with macros .
Let's start with python code, <tt>test-fontforge.py</tt>:
<pre>
import ctypes
import sys
import fontforge
class gssimpledraw(object):  def __init__(self,font_file): self.font = fontforge.open(font_file)  def getcurve(self,letter): self.glname = letter res_Array = [] res = dict() try : #glyph_letter = [ g for g in self.font.glyphs() if g.glyphname == self.glname][0] g = self.font[letter] except Exception ,e : res['err'] = str(e) res_Array.append(res) return res_Array layer_idx = 0; for layer_name in g.layers: layer = g.layers[layer_name] for contour_idx in range(len(layer)): res = dict() contour = layer[contour_idx] contour_name = contour.name res['name'] = contour.name res['is_quadratic'] = contour.is_quadratic res['closed'] = contour.closed res['points'] = [(p.x,p.y,"%i" %p.on_curve) for p in contour ] res['design_size'] = self.font.design_size res['em'] = self.font.em res_Array.append(res) return res_Array   def drawmpostpath(self,letter): res_Array = self.getcurve(letter) state = 0 paths = '' for res in res_Array: temp = '' for p in res['points'] : if p[2]=='1' : if state == 1 : temp = temp + '-- (%s,%s)' %(p[0] ,p[1]) ; state = 1; continue else: temp = temp + '.. (%s,%s)' %(p[0] ,p[1]) ; state = 1; continue if state == 1 : temp = temp + ' .. controls (%s,%s)' %(p[0],p[1]) ; state =2; continue if state == 2 : temp = temp + ' and (%s,%s) ' %(p[0],p[1]) ; state =0; continue if res['closed'] : if state == 1 : temp = 'draw ' + temp[2:] + " -- cycle;\n" else: temp = 'draw ' + temp[2:] + " .. cycle;\n" else: temp = 'draw ' + temp[2:] + ";\n" paths = paths + temp return paths    def drawmpostpoints(self,letter): res_Array = self.getcurve(letter) dots = '' for res in res_Array: temp = '\n'.join( ["drawdot %s;" %str((p[0],p[1])) for p in res['points'] if p[2] == '1'] ) + "\n" dots = dots + temp return dots 
def __init__(self):
self.ierrors if __name__ = dict() self.ierrors['e_unknownerror'] = -1 self.ierrors['e_dictfull__main__'] = -2: self.ierrors['e_dictstackoverflow'] s = simpledraw("lmmono10-3 selfregular.ierrors['e_dictstackunderflow'] = -4otf") self.ierrors['e_execstackoverflow'] #res = -5 selfs.ierrors[getmpostpointsSugar('e_interruptC'] = -6) self.ierrors['e_invalidaccess'] = -7 #print res self #print s.ierrors[getmpostoutline('e_invalidexitC'] = -8) self print s.ierrors[getcurve('e_invalidfileaccesse'] = -9) self print s.ierrors[drawmpostpath('e_invalidfonte'] = -10) self print s.ierrors[drawmpostpoints('e_invalidrestoree'] = -11 self.ierrors['e_ioerror'] = -12 self.ierrors['e_limitcheck'] = -13 self.ierrors['e_nocurrentpoint'] = -14 self.ierrors['e_rangecheck'] = -15 self.ierrors['e_stackoverflow'] = -16 self.ierrors['e_stackunderflow'] = -17 self.ierrors['e_syntaxerror'] = -18 self.ierrors['e_timeout'] = -19 self.ierrors['e_typecheck'] = -20 self.ierrors['e_undefined'] = -21 self.ierrors['e_undefinedfilename'] = -22 self.ierrors['e_undefinedresult'] = -23 self.ierrors['e_unmatchedmark'] = -24 self.ierrors['e_VMerror'] = -25 self.ierrors['e_configurationerror'] = -26 self.ierrors['e_undefinedresource'] = -27 self.ierrors['e_unregistered'] = -28 self.ierrors['e_invalidcontext'] = -29 self.ierrors['e_invalidid'] = -30 self.ierrors['e_Fatal'] = -100 self.ierrors['e_Quit'] = -101 self.ierrors['e_InterpreterExit'] = -102 self.ierrors['e_RemapColor'] = -103 self.ierrors['e_ExecStackUnderflow'] = -104 self.ierrors['e_VMreclaim'] = -105 self.ierrors['e_NeedInput'] = -106 self.ierrors['e_Info'] = -110)
self.libgspath = '</opt/luatex/luatex-lunatic/lib/libgs.so'pre>
self.OutFile = Note the <tt>'__main__'</tt> check, so we can test this class from python. <br/>Next lua layer, which in this case is embed in a tex file: self.InFile = ''<texcode>
self.args \setupcolors[state= [start]
def appendargs(self,arg):
if arg.find('-sOutputFile')>= 0: return
if arg.find('-c quit')>= 0: return
self.args.append(arg)
\startluacode
function testFontforge(fontfile,letter)
require("python")
testoutlines = python.import("test-fontforge")
s = testoutlines.simpledraw(fontfile)
g = s.drawmpostpath(letter)
p = s.drawmpostpoints(letter)
--print( string.format("\%s = \%s ==", letter,g ))
tex.sprint(tex.ctxcatcodes,"\\startMPcode")
tex.sprint(tex.ctxcatcodes,"pickup pencircle scaled 1pt;")
tex.sprint(tex.ctxcatcodes,string.format("\%s",g) )
tex.sprint(tex.ctxcatcodes,"pickup pencircle scaled 8pt;")
tex.sprint(tex.ctxcatcodes,string.format("\%s",p) )
tex.sprint(tex.ctxcatcodes,"\\stopMPcode")
end
\stopluacode
def rawappendargs(self,arg):
self.args.append(arg)
\def\Outline[#1]{%
\getparameters[test][#1]%
\ctxlua{testFontforge("\testfontfile", "\testletter")}%
}
\starttext
\startTEXpage
\Outline[letter={C}, fontfile={lmmono10-regular.otf}]%
\Outline[letter={o}, fontfile={lmmono10-regular.otf}]%
\Outline[letter={n}, fontfile={lmmono10-regular.otf}]%
\Outline[letter={T}, fontfile={lmmono10-regular.otf}]%
\Outline[letter={e}, fontfile={lmmono10-regular.otf}]%
\Outline[letter={X}, fontfile={lmmono10-regular.otf}]%
\Outline[letter={t}, fontfile={lmmono10-regular.otf}]%
\stopTEXpage
\stoptext
</texcode>
 
Here we use <tt>tex.sprint(tex.ctxcatcodes,"\\stopMPcode")</tt> to inject tex code (actually Metapost code) into TeX parser .<br/>
<tt>\Outline</tt> is the TeX layer: of course one can write <tt>\Outline</tt> and <tt>testFontforge</tt> in a different manner to avoid use of tex.sprint(..) <br/>
And this is the result: <br/>
[[Image:Test-fontforge.png|900px]]
def run(self): libgs = ctypes.CDLL(self.libgspath)= Ghostscript ==There are essentially 2 kind of use of ghostscript : exit_status = ctypes.c_int()* convert an existing eps / ps file in pdf ; code = ctypes.c_int* use a program in postscript that take an input, do something and make a ps output (1) code1 = ctypese.c_int() instance = ctypesg.c_void_p(Nonea barcode/label generator ) exit_code = ctypes.c_int() 
code.value = libgs.gsapi_new_instance(ctypes.byref(instance)For the first case, we consider an implementation of eps2pdf, None) if codebeing ps2pdf virtually the same .value == 0 :<br/> libgs.gsapi_set_stdio(instance, NoneActually there is not a python binding of ghostscript, None, None)so we build a simple wrapper self.args.insert(0,'') # if len(self.OutFile) using ctypes module <tt> 0: self.args.append('-sOutputFile=%s' %self.OutFile) if len(selftestgs.InFile) py</tt> 0: self.args.append("%s" %self.InFile) self.args.append('-c quit') arguments = self.args # argc = ctypes.c_int(len(arguments)) argv = (ctypes.c_char_p * argc.value)(*arguments) code.value = libgs.gsapi_init_with_args(instance, argc, argv)
code1.value = libgs.gsapi_exit(instance)<pre>import ctypesimport sys
if code.value == 0 or code.value == self.ierrors['e_Quit']:
code.value = code1.value
if code.value == self.ierrors['e_Quit']class gs(object): code.value = 0
libgs.gsapi_delete_instance def __init__(instanceself):
exit_statusself.value ierrors = 0dict() self.ierrors['e_unknownerror'] = -1 if __name__ self.ierrors['e_dictfull'] =-2 self.ierrors['e_dictstackoverflow'] = -3 self.ierrors['__main__e_dictstackunderflow':] = -4 pyctyps self.ierrors['e_execstackoverflow'] = gs()-5 pyctyps self.appendargs(ierrors['e_interrupt'] = -q6 self.ierrors[')e_invalidaccess'] = -7 pyctyps self.appendargs(ierrors['e_invalidexit'] = -dNOPAUSE8 self.ierrors['e_invalidfileaccess')] = -9 pyctyps self.appendargs(ierrors['e_invalidfont'] = -dEPSCrop10 self.ierrors['e_invalidrestore')] = -11 pyctyps self.appendargs(ierrors['e_ioerror'] = -sDEVICE12 self.ierrors['e_limitcheck'] =pdfwrite-13 self.ierrors[')e_nocurrentpoint'] = -14 pyctyps self.InFile ierrors['e_rangecheck'] = -15 self.ierrors['e_stackoverflow'test] = -16 self.epsierrors['e_stackunderflow'] = -17 pyctyps self.OutFile ierrors['e_syntaxerror'] = -18 self.ierrors['e_timeout'test] = -19 self.pdfierrors['e_typecheck'] = -20 pyctyps self.run()ierrors['e_undefined'] = -21 self.ierrors['e_undefinedfilename'] = -22</pre> self.ierrors['e_undefinedresult'] = -23 self.ierrors['e_unmatchedmark'] = -24The tex code self.ierrors['e_VMerror'] = -25<texcode> self.ierrors['e_configurationerror'] = -26\startluacode self.ierrors['e_undefinedresource'] = -27function testgs(epsin,pdfout) self.ierrors['e_unregistered'] = -28 require("python") self.ierrors['e_invalidcontext'] = -29 gsmodule self.ierrors['e_invalidid'] = python-30 self.import("testgs") ghost ierrors['e_Fatal'] = gsmodule.gs()-100 ghost self.appendargs(ierrors['e_Quit'] = -q')101 ghost self.appendargs(ierrors['e_InterpreterExit'] = -dNOPAUSE')102 ghost self.appendargs(ierrors['e_RemapColor'] = -dEPSCrop')103 ghost self.appendargs(ierrors['e_ExecStackUnderflow'] = -sDEVICE=pdfwrite')104 ghost self.InFile ierrors['e_VMreclaim'] = epsin-105 ghost self.OutFile ierrors['e_NeedInput'] = pdfout-106 ghost self.run()ierrors['e_Info'] = -110end\stopluacode self.libgspath = '/opt/luatex/luatex-lunatic/lib/libgs.so'
\ self.OutFile = '' self.InFile = ''  self.args = []  def\epstopdf#1#2{\ctxlua{testgsappendargs("#1"self,"#2"arg)}}:\def\EPSfigure[#1]{%lazy way to load eps if arg.find('-sOutputFile')>= 0: return\epstopdf{#1 if arg.eps}{#1find('-c quit')>= 0: return self.pdf}%\externalfigure[#1args.pdf]%}append(arg)
\starttext
\startTEXpage
\startcombination[2*1]
{\EPSfigure[tiger]}{\ss tiger.eps}
{\EPSfigure[golfer]}{\ss golfer.eps}
\stopcombination
\stopTEXpage
\stoptext
</texcode>
and the result :<br/>
[[Image:Testgs.png|900px]]
Another example:<br/>here we use a library to generate barcodes [http://www.terryburton.co.uk/barcodewriter (see here)] .<texcode>\startluacodefunction epstopdf def rawappendargs(epsinself,pdfout) require("python"arg): gsmodule = python self.import("testgs") ghost = gsmodule.gs() ghost.appendargs('-q') ghost.appendargs('-dNOPAUSE') ghost.appendargs('-dEPSCrop') ghost.appendargs('-sDEVICE=pdfwrite') ghost.InFile = epsin ghost.OutFile = pdfout ghostargs.runappend(arg)end
function barcode(text,type,options,savefile)
require("python")
gsmodule = python.import("testgs")
barcode_string def run(self): libgs = stringctypes.formatCDLL("%%!\n100 100 moveto (%s) (%s) %s barcode showpage" ,text,options,typeself.libgspath)
exit_status psfile = stringctypes.formatc_int("%s) code = ctypes.ps",savefilec_int(1) epsfile code1 = stringctypes.formatc_int("%s) instance = ctypes.eps",savefilec_void_p(None) pdffile exit_code = stringctypes.formatc_int("%s.pdf",savefile)
temp = io.open(psfile,'w')
temp:write(tostring(barcode_string),"\n")
temp:flush()
io.close(temp)
ghost = gsmodule.gs()
ghost.rawappendargs('-q')
ghost.rawappendargs('-dNOPAUSE')
ghost.rawappendargs('-sDEVICE=epswrite')
ghost.rawappendargs(string.format('-sOutputFile=%s',epsfile))
ghost.rawappendargs('barcode.ps')
ghost.InFile= psfile
ghost.run()
end
\stopluacode
\def\epstopdf#1#2{\ctxlua{epstopdf code.value = libgs.gsapi_new_instance(ctypes.byref(instance), None) if code.value == 0 : libgs.gsapi_set_stdio(instance, None, None, None) self.args.insert("#1"0,"'') #2" if len(self.OutFile)}}> 0:\def\EPSfigure[#1]{ self.args.append('-sOutputFile=%s' %lazy way to load epsself.OutFile)\epstopdf{#1 if len(self.InFile) > 0: self.eps}{#1args.pdf}append("%s" %self.InFile) self.args.append('-c quit') arguments = self.args\externalfigure[ #1 argc = ctypes.c_int(len(arguments)) argv = (ctypes.pdf]%c_char_p * argc.value)(*arguments)} code.value = libgs.gsapi_init_with_args(instance, argc, argv)
\def\PutBarcode code1.value = libgs.gsapi_exit(instance)  if code.value == 0 or code.value == self.ierrors[#1'e_Quit']{%:\getparameters[bc][#1]% code.value = code1.value\ctxlua{barcode("\csname bctext\endcsname","\csname bctype\endcsname","\csname bcoptions\endcsname","\csname bcsavefile\endcsname" )}%\expanded{\EPSfigure if code.value == self.ierrors[\csname bcsavefile\endcsname'e_Quit']}%:} code.value = 0
\starttext\startTEXpage\startcombination[2*2]{\PutBarcode[text={CODE 39},type={code39},options={includecheck includetext},savefile={TEMP1}]}{\ss code39}{\PutBarcode[text={CONTEXT},type={code93},options={includecheck includetext},savefile={TEMP2}]}{\ss code93}{\PutBarcode[text={977147396801},type={ean13},options={includetext},savefile={TEMP3}]}{\ss ean13}{\PutBarcode[text={0123456789},type={interleaved2of5},options={includecheck includetext},savefile={TEMP4}]}{\ss interleaved2of5}\stopcombination\stopTEXpage\stoptext</texcode> libgs.gsapi_delete_instance(instance)
[[Image:Test-ghostscript-barcode exit_status.png|900px]]value = 0
if __name__ == Graphviz ='__main__': pyctyps = gs()[http://www pyctyps.graphvizappendargs('-q') pyctyps.org Graphviz] is a Graph Visualization Software .<br/>Standard distribution comes with several binding appendargs(lua and python among others'-dNOPAUSE') so it's not difficult to integrate in luatex lunatic .<br/>In this example, we draw a graph of the nodes of <context>\TeX</context><pre>\def\StudyBox#1{%\startluacoderequire "python"gv = python pyctyps.importappendargs("gv"'-dEPSCrop')g = gv pyctyps.digraphappendargs("G"'-sDEVICE=pdfwrite')gv pyctyps.setv(g,InFile = 'rankdirtest.eps', pyctyps.OutFile = 'LRtest.pdf' pyctyps.run()
nodes = nodes or {}</pre>
local nd = {};local kd = {};The tex code<texcode>local k = 0;\startluacodelocal function nodesprinttestgs(headepsin,npdfout) while head dorequire("python") local id gsmodule = headpython.idimport("testgs") local oldn ghost = ngsmodule.gs() ndlbl = string ghost.appendargs('-q') ghost.formatappendargs("nd_\%03d",k'-dNOPAUSE') texio ghost.write_nlappendargs(string'-dEPSCrop') ghost.formatappendargs("id'-sDEVICE=pdfwrite') ghost.InFile = epsin ghost.OutFile =pdfout ghost.run()end\stopluacode \%s, ndlbl=def\epstopdf#1#2{\%sctxlua{testgs("#1",id,ndlbl)"#2")}}\def\EPSfigure[#1]{%lazy way to load eps\epstopdf{#1.eps}{#1.pdf}%\externalfigure[#1.pdf]%}
if id == node.id("vlist") then\starttext k = k + 1\startTEXpage nd\startcombination[n2*1] = gv.node(g,ndlbl) res = gv.setv(nd{\EPSfigure[ntiger],"shape","record") res = gv.setv(nd[n],"label",tostring(k) .. " " .. "vlist" .. "}{\|id:" .. tostring(head.id) .. "\|subtype:" .. tostring(head.subtype) .ss tiger. eps} "{\|attr:" .. string.gsub(tostring(head.attr),"(EPSfigure[><golfer])","}{\\\%1") .ss golfer. eps} "\|width:" .. tostring(head.width) .. stopcombination "\|depth:" .. tostring(head.depth) .. "\|height:" .. tostring(head.height) .. stopTEXpage "\|dir:" .. tostring(head.dir) .. "\|shift:" .. tostring(head.shift) .. stoptext "\|glue_order:" .. tostring(head.glue_order) .. </texcode> "\|glue_signand the result :" .. tostring(head.glue_sign) .. <br/> "\|glue_set:" .. tostring(head.glue_set) .. "\|list[[Image:" .. string.gsub(tostring(head.list),"([><])","\\\%1") Testgs.. "\png|prev:" .. string.gsub(tostring(head.prev),"([><900px])","\\\%1") .. "\|next:" .. string.gsub(tostring(head.next),"([><])","\\\%1")) end
if id == nodeAnother example:<br/>here we use a library to generate barcodes [http://www.terryburton.co.iduk/barcodewriter ("rule"see here) then] . k = k + 1<texcode>\startluacode nd[n] = gv.nodefunction epstopdf(gepsin,ndlblpdfout) res = gv.setv require(nd[n],"shape","recordpython") res gsmodule = gvpython.setvimport(nd[n],"labeltestgs",tostring(k) .. " " .. "rule" .. "\|id:" ghost = gsmodule.. tostringgs(head.id) .. "\|subtype:" ghost.. tostringappendargs(head.subtype'-q') .. "\|attr:" .. string ghost.gsubappendargs(tostring(head'-dNOPAUSE') ghost.attr),"appendargs([><]'-dEPSCrop')","\\\%1") .. "\|width:" ghost.. tostringappendargs(head.width'-sDEVICE=pdfwrite') ghost.InFile = epsin ghost. OutFile = pdfout "\|depth:" ghost.. tostringrun(head.depth) .. "\|height:" .. tostringend function barcode(head.heighttext,type,options,savefile) .. require("\|dir:python" .. tostring(head.dir) .. "\|next:" gsmodule = python.. string.gsubimport(tostring(head.next),"([><])","\\\%1testgs") .. "\|prev:" .. barcode_string = string.gsubformat(tostring"%%!\n100 100 moveto (head.prev%s),"([><]%s)%s barcode showpage","\\\%1")text,options,type) end if id psfile == nodestring.idformat("ins%s.ps") then k = k + 1 nd[n] = gv.node(g,ndlblsavefile) res epsfile = gvstring.setvformat(nd[n],"shape%s.eps","record"savefile) res pdffile = gvstring.setvformat(nd[n],"label%s.pdf",tostring(ksavefile) .. " " .. "ins" .. "\|id:" .. tostring(head.id) .. "\|subtype:" temp = io.. tostringopen(head.subtypepsfile,'w') .. "\|attr temp:" .. string.gsubwrite(tostring(head.attrbarcode_string),"([><])","\\\%1n") .. "\|cost temp:" .. tostringflush(head.cost) .. "\|depth:" . io. tostringclose(head.depthtemp) .. "\|height:" ghost = gsmodule.. tostringgs(head.height) .. "\|spec:" ghost.. string.gsubrawappendargs(tostring(head'-q') ghost.spec),"rawappendargs([><]'-dNOPAUSE')","\\\%1") .. "\|list:" .. string ghost.gsubrawappendargs(tostring(head.list'-sDEVICE=epswrite'),"([><])","\\\%1") .. "\|next:" . ghost. rawappendargs(string.gsubformat(tostring(head.next)'-sOutputFile=%s',"([><]epsfile)","\\\%1") .. "\|prev:" . ghost. string.gsubrawappendargs(tostring(head'barcode.prev),"([><])","\\\%1")ps') end ghost.InFile= psfile if id == node ghost.idrun("mark") then k = k + 1end\stopluacode nd[n] = gv.node(g,ndlbl) res = gv.setv\def\epstopdf#1#2{\ctxlua{epstopdf(nd[n],"shape#1","record#2")}} res = gv.setv(nd\def\EPSfigure[n#1],"label",tostring(k) .. " " .. "mark" .. {%lazy way to load eps "\|id:" .. tostring(head.id) epstopdf{#1.eps}{#1. pdf}% "\|subtype:" .. tostring(head.subtype) .externalfigure[#1. pdf]%}  "\|attr:" .. string.gsub(tostring(head.attr),"(def\PutBarcode[><#1])","\\{%\getparameters[bc][#1]%1") .. "\|class:" .. tostringctxlua{barcode(head.class) .. "\|mark:csname bctext\endcsname" .. tostring(head.mark) .. ,"\|next:csname bctype\endcsname" .. string.gsub(tostring(head.next),"([><])\csname bcoptions\endcsname","\csname bcsavefile\\%1endcsname") .. }% "\|prev:" .. string.gsub(tostring(head.prev),"(expanded{\EPSfigure[><])","\\csname bcsavefile\endcsname]}%1")) end}  if id == node.id("adjust") then\starttext k = k + 1\startTEXpage nd\startcombination[n2*2] {\PutBarcode[text= gv.node(g{CODE 39},ndlbl) res type= gv.setv(nd[n]{code39},"shape"options={includecheck includetext},"record")savefile={TEMP1}]}{\ss code39} res {\PutBarcode[text= gv.setv(nd[n]{CONTEXT},type={code93},"label"options={includecheck includetext},tostring(k) .. " " .. "adjust" .. savefile={TEMP2}]}{\ss code93} "{\|id:" .. tostring(head.id) .. "PutBarcode[text={977147396801},type={ean13},options={includetext},savefile={TEMP3}]}{\|subtype:" .. tostring(head.subtype) .. ss ean13} "{\|attr:" .. string.gsub(tostring(head.attr)PutBarcode[text={0123456789},type={interleaved2of5},options={includecheck includetext},"([><savefile={TEMP4}])","}{\ss interleaved2of5}\stopcombination\%1") .. stopTEXpage "\|liststoptext</texcode> [[Image:" Test-ghostscript-barcode.. string.gsub(tostring(head.list),"([><png|900px]])","\\\%1") .. "\|prev== Graphviz == [http:" //www.graphviz. stringorg Graphviz] is a Graph Visualization Software .gsub<br/>Standard distribution comes with several binding (tostring(headlua and python among others) so it's not difficult to integrate in luatex lunatic .prev)<br/>In this example,"([we draw a graph of the nodes of <context>\TeX</context><])","\pre>\def\StudyBox#1{%1") .. "\|next:startluacoderequire " .. string.gsub(tostring(head.next),"([><])python","\\\%1")) end if id gv == nodepython.idimport("discgv") then k = k + 1 nd[n] g = gv.nodedigraph(g,ndlbl"G") res = gv.setv(nd[n]g,"shape"'rankdir',"record"'LR') res nodes = gv.setv(nodes or {} local nd[n],"label",tostring(= {};local kd = {}; local k) .. " " .. "disc" .. = 0; "\|id:" .. tostringlocal function nodesprint(head.id,n) .. "\|subtype:" .. tostring( while head.subtype) .. do "\|attr:" .. string.gsub(tostring( local id = head.attr),"([><])","\\\%1") .. id local oldn = n "\|pre:" .. ndlbl = string.gsubformat(tostring(head.pre),"([><])","\\nd_\%103d",k) .. "\|post:" .. string texio.gsub(tostringwrite_nl(head.post),"([><])","\\\%1") .. "\|replace:" .. string.gsubformat(tostring(head.replace),"([><])","\\id=\%1") .. "\|next:" .. string.gsub(tostring(head.next)s,"([><])","\\ndlbl=\%1s") .. "\|prev:" .. string.gsub(tostring(head.prev),"([><])"id,"\\\%1"ndlbl)) end if id == node.id("whatsitvlist") then
k = k + 1
nd[n] = gv.node(g,ndlbl) res = gv.setv(nd[n],"shape","record") if res = gv.setv(nd[n],"label",tostring(k) .. " " .. "vlist" .. "\|id:" .. tostring(head.id) .. "\|subtype:" .. tostring(head.subtype ) .. "\|attr:" .. string.gsub(tostring(head.attr),"([><])","\\\%1") .. "\|width:" .. tostring(head.width) .. "\|depth:" .. tostring(head.depth) .. "\|height:" .. tostring(head.height) .. "\|dir:" .. tostring(head.dir) .. "\|shift:" .. tostring(head.shift) .. "\|glue_order:" .. tostring(head.glue_order) .. "\|glue_sign:" .. tostring(head.glue_sign) .. "\|glue_set:" .. tostring(head.glue_set) .. "\|list:" .. string.gsub(tostring(head.list),"([><])","\\\%1") .. "\|prev:" .. string.gsub(tostring(head.prev),"([><])","\\\%1") .. "\|next:" .. string.gsub(tostring(head.next),"([><])","\\\%1")) end  if id == node.subtypeid("writerule") then k = k + 1 nd[n] = gv.node(g,ndlbl) res = gv.setv(nd[n],"shape","record") res = gv.setv(nd[n],"label",tostring(k) .. " " .."whatsit:writerule" .. "\|id:" .. tostring(head.id) ..
"\|subtype:" .. tostring(head.subtype) ..
"\|attr:" .. string.gsub(tostring(head.attr),"([><])","\\\%1") ..
"\|streamwidth:" .. tostring(head.streamwidth) .. "\|datadepth:" .. tostring(head.datadepth) .. "\|height:" .. tostring(head.height) .. "\|dir:" .. tostring(head.dir) ..
"\|next:" .. string.gsub(tostring(head.next),"([><])","\\\%1") ..
"\|prev:" .. string.gsub(tostring(head.prev),"([><])","\\\%1"))
end if headid == node.subtype id("ins") then k =k + 1 nd[n] = gv.node(g,ndlbl) res = gv.subtypesetv(nd[n],"shape"close,"record") then res = gv.setv(nd[n],"label",tostring(k) .. " " .."whatsit:closeins" ..
"\|id:" .. tostring(head.id) ..
"\|subtype:" .. tostring(head.subtype) ..
"\|attr:" .. string.gsub(tostring(head.attr),"([><])","\\\%1") ..
"\|streamcost:" .. tostring(head.streamcost) .. "\|prevdepth:" .. tostring(head.depth) .. "\|height:" .. tostring(head.height) .. "\|spec:" .. string.gsub(tostring(head.spec),"([><])","\\\%1") .. "\|list:" .. string.gsub(tostring(head.prevlist),"([><])","\\\%1") .. "\|next:" .. string.gsub(tostring(head.next),"([><])","\\\%1") .. "\|prev:" .. string.gsub(tostring(head.prev),"([><])","\\\%1")) end if headid == node.subtype id("mark") then k =k + 1 nd[n] = gv.node(g,ndlbl) res = gv.subtypesetv(nd[n],"specialshape","record") then res = gv.setv(nd[n],"label",tostring(k) .. " " .."whatsit:specialmark" ..
"\|id:" .. tostring(head.id) ..
"\|subtype:" .. tostring(head.subtype) ..
"\|attr:" .. string.gsub(tostring(head.attr),"([><])","\\\%1") ..
"\|dataclass:" .. tostring(head.dataclass) .. "\|prevmark:" .. tostring(head.mark) .. "\|next:" .. string.gsub(tostring(head.prevnext),"([><])","\\\%1") .. "\|nextprev:" .. string.gsub(tostring(head.nextprev),"([><])","\\\%1")) end if headid == node.subtype id("adjust") then k =k + 1 nd[n] = gv.node(g,ndlbl) res = gv.subtypesetv(nd[n],"shape","local_parrecord") then res = gv.setv(nd[n],"label",tostring(k) .. " " .."whatsit:local_paradjust" ..
"\|id:" .. tostring(head.id) ..
"\|subtype:" .. tostring(head.subtype) ..
"\|attr:" .. string.gsub(tostring(head.attr),"([><])","\\\%1") ..
"\|pen_interlist:" .. tostringstring.gsub(head.pen_inter) .. "\|pen_broken:" .. tostring(head.pen_brokenlist) .. "\|dir:," .. tostring(head.dir[><]) .. "\|box_left:" .. tostring(head.box_left) .. ,"\|box_left_width:" .. tostring(head.box_left_width) .. "\|box_right:" .. tostring(head.box_right) .. "\|box_right_width:%1" .. tostring(head.box_right_width) ..
"\|prev:" .. string.gsub(tostring(head.prev),"([><])","\\\%1") ..
"\|next:" .. string.gsub(tostring(head.next),"([><])","\\\%1"))
end if headid == node.subtype id("disc") then k =k + 1 nd[n] = gv.node(g,ndlbl) res = gv.subtypesetv(nd[n],"dirshape","record") then res = gv.setv(nd[n],"label",tostring(k) .. " " .."whatsit:dirdisc" ..
"\|id:" .. tostring(head.id) ..
"\|subtype:" .. tostring(head.subtype) ..
"\|attr:" .. string.gsub(tostring(head.attr),"([><])","\\\%1") ..
"\|dirpre:" .. string.gsub(tostring(head.dirpre),"([><])","\\\%1") .. "\|levelpost:" .. string.gsub(tostring(head.levelpost),"([><])","\\\%1") .. "\|dvi_ptrreplace:" .. string.gsub(tostring(head.dvi_ptrreplace) .. ,"([><])","\|dvi_h:\\%1" .. tostring(head.dvi_h) ..
"\|next:" .. string.gsub(tostring(head.next),"([><])","\\\%1") ..
"\|prev:" .. string.gsub(tostring(head.prev),"([><])","\\\%1"))
end if id == node.id("whatsit") then k = k + 1 endnd[n] = gv.node(g,ndlbl) res = gv.setv(nd[n],"shape","record") if head.subtype == node.subtype("pdf_literalwrite") then res = gv.setv(nd[n],"label",tostring(k) .. " " .."whatsit:pdf_literalwrite" ..
"\|id:" .. tostring(head.id) ..
"\|subtype:" .. tostring(head.subtype) ..
"\|attr:" .. string.gsub(tostring(head.attr),"([><])","\\\%1") ..
"\|modestream:" .. tostring(head.modestream) ..
"\|data:" .. tostring(head.data) ..
"\|next:" .. string.gsub(tostring(head.next),"([><])","\\\%1") ..
"\|prev:" .. string.gsub(tostring(head.prev),"([><])","\\\%1"))
end
if head.subtype == node.subtype("pdf_refobjclose") then res = gv.setv(nd[n],"label",tostring(k) .. " " .."whatsit:pdf_refobjclose" ..
"\|id:" .. tostring(head.id) ..
"\|subtype:" .. tostring(head.subtype) ..
"\|attr:" .. string.gsub(tostring(head.attr),"([><])","\\\%1") ..
"\|objnumstream:" .. tostring(head.objnumstream) ..
"\|prev:" .. string.gsub(tostring(head.prev),"([><])","\\\%1") ..
"\|next:" .. string.gsub(tostring(head.next),"([><])","\\\%1"))
end
if head.subtype == node.subtype("pdf_refxformspecial") then res = gv.setv(nd[n],"label",tostring(k) .. " " .."whatsit:pdf_refxformspecial" ..
"\|id:" .. tostring(head.id) ..
"\|subtype:" .. tostring(head.subtype) ..
"\|attr:" .. string.gsub(tostring(head.attr),"([><])","\\\%1") ..
"\|widthdata:" .. tostring(head.widthdata) .. "\|height:" .. tostring(head.height) .. "\|depth:" .. tostring(head.depth) .. "\|objnum:" .. tostring(head.objnum) .. "\|nextprev:" .. string.gsub(tostring(head.nextprev),"([><])","\\\%1") .. "\|prevnext:" .. string.gsub(tostring(head.prevnext),"([><])","\\\%1"))
end
if head.subtype == node.subtype("pdf_refximagelocal_par") then res = gv.setv(nd[n],"label",tostring(k) .. " " .."whatsit:pdf_refximagelocal_par" ..
"\|id:" .. tostring(head.id) ..
"\|subtype:" .. tostring(head.subtype) ..
"\|attr:" .. string.gsub(tostring(head.attr),"([><])","\\\%1") ..
"\|widthpen_inter:" .. tostring(head.widthpen_inter) .. "\|heightpen_broken:" .. tostring(head.heightpen_broken) .. "\|depthdir:" .. tostring(head.depthdir) .. "\|objnumbox_left:" .. tostring(head.objnumbox_left) .. "\|nextbox_left_width:" .. tostring(head.box_left_width) .. "\|box_right:" .. tostring(head.box_right) .. "\|box_right_width:" .. tostring(head.box_right_width) .. "\|prev:" .. string.gsub(tostring(head.nextprev),"([><])","\\\%1") .. "\|prevnext:" .. string.gsub(tostring(head.prevnext),"([><])","\\\%1"))
end
if head.subtype == node.subtype("pdf_annotdir") then res = gv.setv(nd[n],"label",tostring(k) .. " " .."whatsit:pdf_annotdir" ..
"\|id:" .. tostring(head.id) ..
"\|subtype:" .. tostring(head.subtype) ..
"\|attr:" .. string.gsub(tostring(head.attr),"([><])","\\\%1") ..
"\|widthdir:" .. tostring(head.widthdir) .. "\|heightlevel:" .. tostring(head.heightlevel) .. "\|depthdvi_ptr:" .. tostring(head.depthdvi_ptr) .. "\|objnumdvi_h:" .. tostring(head.objnum) .. "\|data:" .. tostring(head.datadvi_h) ..
"\|next:" .. string.gsub(tostring(head.next),"([><])","\\\%1") ..
"\|prev:" .. string.gsub(tostring(head.prev),"([><])","\\\%1"))
end
if head.subtype == node.subtype("pdf_start_linkpdf_literal") then res = gv.setv(nd[n],"label",tostring(k) .. " " .."whatsit:pdf_start_linkpdf_literal" ..
"\|id:" .. tostring(head.id) ..
"\|subtype:" .. tostring(head.subtype) ..
"\|attr:" .. string.gsub(tostring(head.attr),"([><])","\\\%1") ..
"\|widthmode:" .. tostring(head.widthmode) .. "\|heightdata:" .. tostring(head.heightdata) .. "\|depth:" .. tostring(head.depth) .. "\|objnum:" .. tostring(head.objnum) .. "\|link_attr:" .. tostring(head.link_attr) .. "\|action:" .. tostring(head.action) .. "\|prevnext:" .. string.gsub(tostring(head.prevnext),"([><])","\\\%1") .. "\|nextprev:" .. string.gsub(tostring(head.nextprev),"([><])","\\\%1"))
end
if head.subtype == node.subtype("pdf_end_linkpdf_refobj") then res = gv.setv(nd[n],"label",tostring(k) .. " " .."whatsit:pdf_end_linkpdf_refobj" ..
"\|id:" .. tostring(head.id) ..
"\|subtype:" .. tostring(head.subtype) ..
"\|attr:" .. string.gsub(tostring(head.attr),"([><])","\\\%1") ..
"\|objnum:" .. tostring(head.objnum) ..
"\|prev:" .. string.gsub(tostring(head.prev),"([><])","\\\%1") ..
"\|next:" .. string.gsub(tostring(head.next),"([><])","\\\%1"))
end
if head.subtype == node.subtype("pdf_destpdf_refxform") then res = gv.setv(nd[n],"label",tostring(k) .. " " .."whatsit:pdf_destpdf_refxform" ..
"\|id:" .. tostring(head.id) ..
"\|subtype:" .. tostring(head.subtype) ..
"\|height:" .. tostring(head.height) ..
"\|depth:" .. tostring(head.depth) ..
"\|named_id:" .. tostring(head.named_id) ..
"\|dest_id:" .. tostring(head.dest_id) ..
"\|dest_type:" .. tostring(head.dest_type) ..
"\|xyz_zoom:" .. tostring(head.xyz_zoom) ..
"\|objnum:" .. tostring(head.objnum) ..
"\|prevnext:" .. string.gsub(tostring(head.prevnext),"([><])","\\\%1") .. "\|nextprev:" .. string.gsub(tostring(head.nextprev),"([><])","\\\%1"))
end
if head.subtype == node.subtype("pdf_threadpdf_refximage") then res = gv.setv(nd[n],"label",tostring(k) .. " " .."whatsit:pdf_threadpdf_refximage" ..
"\|id:" .. tostring(head.id) ..
"\|subtype:" .. tostring(head.subtype) ..
"\|height:" .. tostring(head.height) ..
"\|depth:" .. tostring(head.depth) ..
"\|named_idobjnum:" .. tostring(head.named_idobjnum) .. "\|thread_id:" .. tostring(head.thread_id) .. "\|thread_attr:" .. tostring(head.thread_attr) .. "\|prevnext:" .. string.gsub(tostring(head.prevnext),"([><])","\\\%1") .. "\|nextprev:" .. string.gsub(tostring(head.nextprev),"([><])","\\\%1"))
end
if head.subtype == node.subtype("pdf_start_threadpdf_annot") then res = gv.setv(nd[n],"label",tostring(k) .. " " .."whatsit:pdf_start_threadpdf_annot" ..
"\|id:" .. tostring(head.id) ..
"\|subtype:" .. tostring(head.subtype) ..
"\|height:" .. tostring(head.height) ..
"\|depth:" .. tostring(head.depth) ..
"\|named_idobjnum:" .. tostring(head.named_idobjnum) .. "\|thread_iddata:" .. tostring(head.thread_iddata) .. "\|thread_attr:" .. tostring(head.thread_attr) .. "\|prevnext:" .. string.gsub(tostring(head.prevnext),"([><])","\\\%1") .. "\|nextprev:" .. string.gsub(tostring(head.nextprev),"([><])","\\\%1"))
end
if head.subtype == node.subtype("pdf_end_threadpdf_start_link") then res = gv.setv(nd[n],"label",tostring(k) .. " " .."whatsit:pdf_end_threadpdf_start_link" ..
"\|id:" .. tostring(head.id) ..
"\|subtype:" .. tostring(head.subtype) ..
"\|attr:" .. string.gsub(tostring(head.attr),"([><])","\\\%1") ..
"\|width:" .. tostring(head.width) .. "\|height:" .. tostring(head.height) .. "\|depth:" .. tostring(head.depth) .. "\|objnum:" .. tostring(head.objnum) .. "\|link_attr:" .. tostring(head.link_attr) .. "\|action:" .. tostring(head.action) .. "\|prev:" .. string.gsub(tostring(head.prev),"([><])","\\\%1") ..
"\|next:" .. string.gsub(tostring(head.next),"([><])","\\\%1"))
end
if head.subtype == node.subtype("pdf_save_pospdf_end_link") then res = gv.setv(nd[n],"label",tostring(k) .. " " .."whatsit:pdf_save_pospdf_end_link" ..
"\|id:" .. tostring(head.id) ..
"\|subtype:" .. tostring(head.subtype) ..
"\|next:" .. string.gsub(tostring(head.next),"([><])","\\\%1"))
end
if head.subtype == node.subtype("pdf_thread_datapdf_dest") then res = gv.setv(nd[n],"label",tostring(k) .. " " .."whatsit:pdf_thread_datapdf_dest" ..
"\|id:" .. tostring(head.id) ..
"\|subtype:" .. tostring(head.subtype) ..
"\|attr:" .. string.gsub(tostring(head.attr),"([><])","\\\%1") ..
"\|width:" .. tostring(head.width) ..
"\|height:" .. tostring(head.height) ..
"\|depth:" .. tostring(head.depth) ..
"\|named_id:" .. tostring(head.named_id) ..
"\|dest_id:" .. tostring(head.dest_id) ..
"\|dest_type:" .. tostring(head.dest_type) ..
"\|xyz_zoom:" .. tostring(head.xyz_zoom) ..
"\|objnum:" .. tostring(head.objnum) ..
"\|prev:" .. string.gsub(tostring(head.prev),"([><])","\\\%1") ..
"\|next:" .. string.gsub(tostring(head.next),"([><])","\\\%1"))
end
if head.subtype == node.subtype("pdf_link_datapdf_thread") then res = gv.setv(nd[n],"label",tostring(k) .. " " .."whatsit:pdf_link_datapdf_thread" ..
"\|id:" .. tostring(head.id) ..
"\|subtype:" .. tostring(head.subtype) ..
"\|attr:" .. string.gsub(tostring(head.attr),"([><])","\\\%1") .. "\|width:" .. tostring(head.width) .. "\|height:" .. tostring(head.height) .. "\|depth:" .. tostring(head.depth) .. "\|named_id:" .. tostring(head.named_id) .. "\|thread_id:" .. tostring(head.thread_id) .. "\|thread_attr:" .. tostring(head.thread_attr) .. "\|prev:" .. string.gsub(tostring(head.prev),"([><])","\\\%1") .. "\|next:" .. string.gsub(tostring(head.next),"([><])","\\\%1")) end if head.subtype == node.subtype("openpdf_start_thread") then res = gv.setv(nd[n],"label",tostring(k) .. " " .."whatsit:openpdf_start_thread" ..
"\|id:" .. tostring(head.id) ..
"\|subtype:" .. tostring(head.subtype) ..
"\|attr:" .. string.gsub(tostring(head.attr),"([><])","\\\%1") ..
"\|streamwidth:" .. tostring(head.streamwidth) .. "\|nameheight:" .. tostring(head.nameheight) .. "\|areadepth:" .. tostring(head.areadepth) .. "\|extnamed_id:" .. tostring(head.extnamed_id) .. "\|nextthread_id:" .. tostring(head.thread_id) .. "\|thread_attr:" .. tostring(head.thread_attr) .. "\|prev:" .. string.gsub(tostring(head.nextprev),"([><])","\\\%1") .. "\|prevnext:" .. string.gsub(tostring(head.prevnext),"([><])","\\\%1"))
end
if head.subtype == node.subtype("late_luapdf_end_thread") then res = gv.setv(nd[n],"label",tostring(k) .. " " .."whatsit:late_luapdf_end_thread" ..
"\|id:" .. tostring(head.id) ..
"\|subtype:" .. tostring(head.subtype) ..
"\|attr:" .. string.gsub(tostring(head.attr),"([><])","\\\%1") ..
"\|reg:" .. tostring(head.reg) .. "\|data:" .. tostring(head.data) .. "\|name:" .. tostring(head.name) .. "\|nextprev:" .. string.gsub(tostring(head.nextprev),"([><])","\\\%1") .. "\|prevnext:" .. string.gsub(tostring(head.prevnext),"([><])","\\\%1"))
end
if head.subtype == node.subtype("fakepdf_save_pos") then res = gv.setv(nd[n],"label",tostring(k) .. " " .."whatsit:fakepdf_save_pos" ..
"\|id:" .. tostring(head.id) ..
"\|subtype:" .. tostring(head.subtype) ..
"\|attr:" .. string.gsub(tostring(head.attr),"([><])","\\\%1") ..
"\|prev:" .. string.gsub(tostring(head.prev),"([><])","\\\%1") ..
"\|next:" .. string.gsub(tostring(head.next),"([><])","\\\%1"))
end
if head.subtype == node.subtype("pdf_colorstackpdf_thread_data") then res = gv.setv(nd[n],"label",tostring(k) .. " " .."whatsit:pdf_colorstackpdf_thread_data" ..
"\|id:" .. tostring(head.id) ..
"\|subtype:" .. tostring(head.subtype) ..
"\|attr:" .. string.gsub(tostring(head.attr),"([><])","\\\%1") .. "\|stack:" .. tostring(head.stack) .. "\|cmd:" .. tostring(head.cmd) .. "\|data:" .. tostring(head.data) .. "\|next:" .. string.gsub(tostring(head.next),"([><])","\\\%1") .. "\|prev:" .. string.gsub(tostring(head.prev),"([><])","\\\%1"))
end
if head.subtype == node.subtype("pdf_savepdf_link_data") then res = gv.setv(nd[n],"label",tostring(k) .. " " .."whatsit:pdf_savepdf_link_data" ..
"\|id:" .. tostring(head.id) ..
"\|subtype:" .. tostring(head.subtype) ..
"\|attr:" .. string.gsub(tostring(head.attr),"([><])","\\\%1") ..
"\|prev:" .. string.gsub(tostring(head.prev),"([><])","\\\%1") ..
"\|next:" .. string.gsub(tostring(head.next),"([><])","\\\%1"))
end
if head.subtype == node.subtype("cancel_boundaryopen") then res = gv.setv(nd[n],"label",tostring(k) .. " " .."whatsit:cancel_boundaryopen" ..
"\|id:" .. tostring(head.id) ..
"\|subtype:" .. tostring(head.subtype) ..
"\|attr:" .. string.gsub(tostring(head.attr),"([><])","\\\%1") ..
"\|prevstream:" .. tostring(head.stream) .. "\|name:" .. tostring(head.name) .. "\|area:" .. tostring(head.area) .. "\|ext:" .. tostring(head.ext) .. "\|next:" .. string.gsub(tostring(head.prevnext),"([><])","\\\%1") .. "\|nextprev:" .. string.gsub(tostring(head.nextprev),"([><])","\\\%1"))
end
if head.subtype == node.subtype("close_lualate_lua") then res = gv.setv(nd[n],"label",tostring(k) .. " " .."whatsit:close_lualate_lua" ..
"\|id:" .. tostring(head.id) ..
"\|subtype:" .. tostring(head.subtype) ..
"\|attr:" .. string.gsub(tostring(head.attr),"([><])","\\\%1") ..
"\|reg:" .. tostring(head.reg) ..
"\|prevdata:" .. tostring(head.data) .. "\|name:" .. tostring(head.name) .. "\|next:" .. string.gsub(tostring(head.prevnext),"([><])","\\\%1") .. "\|nextprev:" .. string.gsub(tostring(head.nextprev),"([><])","\\\%1"))
end
if head.subtype == node.subtype("pdf_setmatrixfake") then res = gv.setv(nd[n],"label",tostring(k) .. " " .."whatsit:pdf_setmatrixfake" ..
"\|id:" .. tostring(head.id) ..
"\|subtype:" .. tostring(head.subtype) ..
"\|attr:" .. string.gsub(tostring(head.attr),"([><])","\\\%1") ..
"\|data:" .. tostring(head.data) ..
"\|prev:" .. string.gsub(tostring(head.prev),"([><])","\\\%1") ..
"\|next:" .. string.gsub(tostring(head.next),"([><])","\\\%1"))
end
if head.subtype == node.subtype("pdf_restorepdf_colorstack") then res = gv.setv(nd[n],"label",tostring(k) .. " " .."whatsit:pdf_restorepdf_colorstack" .. "\|id:" .. tostring(head.id) .. "\|subtype:" .. tostring(head.subtype) .. "\|attr:" .. string.gsub(tostring(head.attr),"([><])","\\\%1") .. "\|stack:" .. tostring(head.stack) .. "\|cmd:" .. tostring(head.cmd) .. "\|data:" .. tostring(head.data) .. "\|next:" .. string.gsub(tostring(head.next),"([><])","\\\%1") .. "\|prev:" .. string.gsub(tostring(head.prev),"([><])","\\\%1")) end if head.subtype == node.subtype("pdf_save") then res = gv.setv(nd[n],"label",tostring(k) .. " " .."whatsit:pdf_save" ..
"\|id:" .. tostring(head.id) ..
"\|subtype:" .. tostring(head.subtype) ..
"\|next:" .. string.gsub(tostring(head.next),"([><])","\\\%1"))
end
if head.subtype == node.subtype("user_definedcancel_boundary") then res = gv.setv(nd[n],"label",tostring(k) .. " " .."whatsit:user_definedcancel_boundary" ..
"\|id:" .. tostring(head.id) ..
"\|subtype:" .. tostring(head.subtype) ..
"\|attr:" .. string.gsub(tostring(head.attr),"([><])","\\\%1") ..
"\|user_id:" .. tostring(head.user_id) .. "\|type:" .. tostring(head.type) .. "\|value:" .. tostring(head.value) .. "\|nextprev:" .. string.gsub(tostring(head.nextprev),"([><])","\\\%1") .. "\|prevnext:" .. string.gsub(tostring(head.prevnext),"([><])","\\\%1"))
end
end if id head.subtype == node.idsubtype("mathclose_lua") then k = k + 1 nd[n] = gv.node(g,ndlbl) res = gv.setv(nd[n],"shape","record") res = gv.setv(nd[n],"label",tostring(k) .. " " .. "mathwhatsit:close_lua" ..
"\|id:" .. tostring(head.id) ..
"\|subtype:" .. tostring(head.subtype) ..
"\|attr:" .. string.gsub(tostring(head.attr),"([><])","\\\%1") ..
"\|surroundreg:" .. tostring(head.surroundreg) ..
"\|prev:" .. string.gsub(tostring(head.prev),"([><])","\\\%1") ..
"\|next:" .. string.gsub(tostring(head.next),"([><])","\\\%1"))
end if id head.subtype == node.idsubtype("gluepdf_setmatrix") then k = k + 1 nd[n] = gv.node(g,ndlbl) res = gv.setv(nd[n],"shape","record") res = gv.setv(nd[n],"label",tostring(k) .. " " .. "gluewhatsit:pdf_setmatrix" ..
"\|id:" .. tostring(head.id) ..
"\|subtype:" .. tostring(head.subtype) ..
"\|attr:" .. string.gsub(tostring(head.attr),"([><])","\\\%1") ..
"\|spec:" .. string.gsub(tostring(head.spec),"([><])","\\\%1") .. "\|leader:" .. tostring(head.leader) .. "\|next:" .. string.gsub(tostring(head.next),"([><])","\\\%1") .. "\|prev:" .. string.gsub(tostring(head.prev),"([><])","\\\%1")) end if id == node.id("kern") then k = k + 1 nd[n] = gv.node(g,ndlbl) res = gv.setv(nd[n],"shape","record") res = gv.setv(nd[n],"label",tostring(k) .. " " .. "kern" .. "\|id:" .. tostring(head.id) .. "\|subtype:" .. tostring(head.subtype) .. "\|attr:" .. string.gsub(tostring(head.attr),"([><])","\\\%1") .. "\|kerndata:" .. tostring(head.kerndata) ..
"\|prev:" .. string.gsub(tostring(head.prev),"([><])","\\\%1") ..
"\|next:" .. string.gsub(tostring(head.next),"([><])","\\\%1"))
end if id head.subtype == node.idsubtype("penaltypdf_restore") then k = k + 1 nd[n] = gv.node(g,ndlbl) res = gv.setv(nd[n],"shape","record") res = gv.setv(nd[n],"label",tostring(k) .. " " .. "penaltywhatsit:pdf_restore" ..
"\|id:" .. tostring(head.id) ..
"\|subtype:" .. tostring(head.subtype) ..
"\|attr:" .. string.gsub(tostring(head.attr),"([><])","\\\%1") ..
"\|penalty:" .. tostring(head.penalty) ..
"\|prev:" .. string.gsub(tostring(head.prev),"([><])","\\\%1") ..
"\|next:" .. string.gsub(tostring(head.next),"([><])","\\\%1"))
end
if head.subtype == node.subtype("user_defined") then
res = gv.setv(nd[n],"label",tostring(k) .. " " .."whatsit:user_defined" ..
"\|id:" .. tostring(head.id) ..
"\|subtype:" .. tostring(head.subtype) ..
"\|attr:" .. string.gsub(tostring(head.attr),"([><])","\\\%1") ..
"\|user_id:" .. tostring(head.user_id) ..
"\|type:" .. tostring(head.type) ..
"\|value:" .. tostring(head.value) ..
"\|next:" .. string.gsub(tostring(head.next),"([><])","\\\%1") ..
"\|prev:" .. string.gsub(tostring(head.prev),"([><])","\\\%1"))
end
end
if id == node.id("unsetmath") then
k = k + 1
nd[n] = gv.node(g,ndlbl) res = gv.setv(nd[n],"shape","record")
res = gv.setv(nd[n],"label",tostring(k) .. " " .. "unsetmath" ..
"\|id:" .. tostring(head.id) ..
"\|subtype:" .. tostring(head.subtype) ..
"\|attr:" .. string.gsub(tostring(head.attr),"([><])","\\\%1") ..
"\|widthsurround:" .. tostring(head.width) .. "\|depth:" .. tostring(head.depth) .. "\|height:" .. tostring(head.height) .. "\|dir:" .. tostring(head.dir) .. "\|shrink:" .. tostring(head.shrink) .. "\|glue_order:" .. tostring(head.glue_order) .. "\|glue_sign:" .. tostring(head.glue_sign) .. "\|stretch:" .. tostring(head.stretch) .. "\|span:" .. tostring(head.span) .. "\|list:" .. string.gsub(tostring(head.list),"([><])","\\\%1"surround) ..
"\|prev:" .. string.gsub(tostring(head.prev),"([><])","\\\%1") ..
"\|next:" .. string.gsub(tostring(head.next),"([><])","\\\%1"))
end
if id == node.id("styleglue") then
k = k + 1
nd[n] = gv.node(g,ndlbl) res = gv.setv(nd[n],"shape","record")
res = gv.setv(nd[n],"label",tostring(k) .. " " .. "styleglue" ..
"\|id:" .. tostring(head.id) ..
"\|subtype:" .. tostring(head.subtype) ..
"\|attr:" .. string.gsub(tostring(head.attr),"([><])","\\\%1") ..
"\|stylespec:" .. string.gsub(tostring(head.spec),"([><])","\\\%1") .. "\|leader:" .. tostring(head.leader) .. "\|next:" .. string.gsub(tostring(head.next),"([><])","\\\%1") .. "\|prev:" .. string.gsub(tostring(head.prev),"([><])","\\\%1")) end if id == node.id("kern") then k = k + 1 nd[n] = gv.node(g,ndlbl) res = gv.setv(nd[n],"shape","record") res = gv.setv(nd[n],"label",tostring(k) .. " " .. "kern" .. "\|id:" .. tostring(head.id) .. "\|subtype:" .. tostring(head.subtype) .. "\|attr:" .. string.gsub(tostring(head.attr),"([><])","\\\%1") .. "\|kern:" .. tostring(head.stylekern) ..
"\|prev:" .. string.gsub(tostring(head.prev),"([><])","\\\%1") ..
"\|next:" .. string.gsub(tostring(head.next),"([><])","\\\%1"))
end
if id == node.id("choicepenalty") then
k = k + 1
nd[n] = gv.node(g,ndlbl) res = gv.setv(nd[n],"shape","record")
res = gv.setv(nd[n],"label",tostring(k) .. " " .. "choicepenalty" ..
"\|id:" .. tostring(head.id) ..
"\|subtype:" .. tostring(head.subtype) ..
"\|attr:" .. string.gsub(tostring(head.attr),"([><])","\\\%1") ..
"\|displaypenalty:" .. tostring(head.displaypenalty) .. "\|text:" .. tostring(head.text) .. "\|script:" .. tostring(head.script) .. "\|scriptscript:" .. tostring(head.scriptscript) .. "\|nextprev:" .. string.gsub(tostring(head.nextprev),"([><])","\\\%1") .. "\|prevnext:" .. string.gsub(tostring(head.prevnext),"([><])","\\\%1"))
end
if id == node.id("noadunset") then
k = k + 1
nd[n] = gv.node(g,ndlbl) res = gv.setv(nd[n],"shape","record")
res = gv.setv(nd[n],"label",tostring(k) .. " " .. "noadunset" ..
"\|id:" .. tostring(head.id) ..
"\|subtype:" .. tostring(head.subtype) ..
"\|attr:" .. string.gsub(tostring(head.attr),"([><])","\\\%1") ..
"\|nucleuswidth:" .. tostring(head.nucleuswidth) .. "\|subdepth:" .. tostring(head.subdepth) .. "\|supheight:" .. tostring(head.supheight) .. "\|nextdir:" .. tostring(head.dir) .. "\|shrink:" .. tostring(head.shrink) .. "\|glue_order:" .. tostring(head.glue_order) .. "\|glue_sign:" .. tostring(head.glue_sign) .. "\|stretch:" .. tostring(head.stretch) .. "\|span:" .. tostring(head.span) .. "\|list:" .. string.gsub(tostring(head.nextlist),"([><])","\\\%1") .. "\|prev:" .. string.gsub(tostring(head.prev),"([><])","\\\%1") .. "\|next:" .. string.gsub(tostring(head.next),"([><])","\\\%1"))
end
if id == node.id("opstyle") then
k = k + 1
nd[n] = gv.node(g,ndlbl) res = gv.setv(nd[n],"shape","record")
res = gv.setv(nd[n],"label",tostring(k) .. " " .. "opstyle" ..
"\|id:" .. tostring(head.id) ..
"\|subtype:" .. tostring(head.subtype) ..
"\|attr:" .. string.gsub(tostring(head.attr),"([><])","\\\%1") ..
"\|nucleusstyle:" .. tostring(head.nucleusstyle) .. "\|sub:" .. tostring(head.sub) .. "\|sup:" .. tostring(head.sup) .. "\|nextprev:" .. string.gsub(tostring(head.nextprev),"([><])","\\\%1") .. "\|prevnext:" .. string.gsub(tostring(head.prevnext),"([><])","\\\%1"))
end
if id == node.id("binchoice") then
k = k + 1
nd[n] = gv.node(g,ndlbl) res = gv.setv(nd[n],"shape","record")
res = gv.setv(nd[n],"label",tostring(k) .. " " .. "binchoice" ..
"\|id:" .. tostring(head.id) ..
"\|subtype:" .. tostring(head.subtype) ..
"\|attr:" .. string.gsub(tostring(head.attr),"([><])","\\\%1") ..
"\|nucleusdisplay:" .. tostring(head.nucleusdisplay) .. "\|subtext:" .. tostring(head.subtext) .. "\|supscript:" .. tostring(head.supscript) .. "\|scriptscript:" .. tostring(head.scriptscript) ..
"\|next:" .. string.gsub(tostring(head.next),"([><])","\\\%1") ..
"\|prev:" .. string.gsub(tostring(head.prev),"([><])","\\\%1"))
end
if id == node.id("relnoad") then
k = k + 1
nd[n] = gv.node(g,ndlbl) res = gv.setv(nd[n],"shape","record")
res = gv.setv(nd[n],"label",tostring(k) .. " " .. "relnoad" ..
"\|id:" .. tostring(head.id) ..
"\|subtype:" .. tostring(head.subtype) ..
"\|prev:" .. string.gsub(tostring(head.prev),"([><])","\\\%1"))
end
if id == node.id("openop") then
k = k + 1
nd[n] = gv.node(g,ndlbl) res = gv.setv(nd[n],"shape","record")
res = gv.setv(nd[n],"label",tostring(k) .. " " .. "openop" ..
"\|id:" .. tostring(head.id) ..
"\|subtype:" .. tostring(head.subtype) ..
"\|prev:" .. string.gsub(tostring(head.prev),"([><])","\\\%1"))
end
if id == node.id("closebin") then
k = k + 1
nd[n] = gv.node(g,ndlbl) res = gv.setv(nd[n],"shape","record")
res = gv.setv(nd[n],"label",tostring(k) .. " " .. "closebin" ..
"\|id:" .. tostring(head.id) ..
"\|subtype:" .. tostring(head.subtype) ..
"\|prev:" .. string.gsub(tostring(head.prev),"([><])","\\\%1"))
end
if id == node.id("punctrel") then
k = k + 1
nd[n] = gv.node(g,ndlbl) res = gv.setv(nd[n],"shape","record")
res = gv.setv(nd[n],"label",tostring(k) .. " " .. "punctrel" ..
"\|id:" .. tostring(head.id) ..
"\|subtype:" .. tostring(head.subtype) ..
"\|prev:" .. string.gsub(tostring(head.prev),"([><])","\\\%1"))
end
if id == node.id("inneropen") then
k = k + 1
nd[n] = gv.node(g,ndlbl) res = gv.setv(nd[n],"shape","record")
res = gv.setv(nd[n],"label",tostring(k) .. " " .. "inneropen" ..
"\|id:" .. tostring(head.id) ..
"\|subtype:" .. tostring(head.subtype) ..
"\|prev:" .. string.gsub(tostring(head.prev),"([><])","\\\%1"))
end
if id == node.id("radicalclose") then
k = k + 1
nd[n] = gv.node(g,ndlbl) res = gv.setv(nd[n],"shape","record")
res = gv.setv(nd[n],"label",tostring(k) .. " " .. "radicalclose" ..
"\|id:" .. tostring(head.id) ..
"\|subtype:" .. tostring(head.subtype) ..
"\|sub:" .. tostring(head.sub) ..
"\|sup:" .. tostring(head.sup) ..
"\|left:" .. tostring(head.left) ..
"\|degree:" .. tostring(head.degree) ..
"\|next:" .. string.gsub(tostring(head.next),"([><])","\\\%1") ..
"\|prev:" .. string.gsub(tostring(head.prev),"([><])","\\\%1"))
end
if id == node.id("fractionpunct") then
k = k + 1
nd[n] = gv.node(g,ndlbl) res = gv.setv(nd[n],"shape","record")
res = gv.setv(nd[n],"label",tostring(k) .. " " .. "fractionpunct" ..
"\|id:" .. tostring(head.id) ..
"\|subtype:" .. tostring(head.subtype) ..
"\|attr:" .. string.gsub(tostring(head.attr),"([><])","\\\%1") ..
"\|widthnucleus:" .. tostring(head.widthnucleus) .. "\|numsub:" .. tostring(head.numsub) .. "\|denomsup:" .. tostring(head.denom) .. "\|left:" .. tostring(head.left) .. "\|right:" .. tostring(head.rightsup) ..
"\|next:" .. string.gsub(tostring(head.next),"([><])","\\\%1") ..
"\|prev:" .. string.gsub(tostring(head.prev),"([><])","\\\%1"))
end
if id == node.id("underinner") then
k = k + 1
nd[n] = gv.node(g,ndlbl) res = gv.setv(nd[n],"shape","record")
res = gv.setv(nd[n],"label",tostring(k) .. " " .. "underinner" ..
"\|id:" .. tostring(head.id) ..
"\|subtype:" .. tostring(head.subtype) ..
"\|prev:" .. string.gsub(tostring(head.prev),"([><])","\\\%1"))
end
if id == node.id("overradical") then
k = k + 1
nd[n] = gv.node(g,ndlbl) res = gv.setv(nd[n],"shape","record")
res = gv.setv(nd[n],"label",tostring(k) .. " " .. "overradical" ..
"\|id:" .. tostring(head.id) ..
"\|subtype:" .. tostring(head.subtype) ..
"\|sub:" .. tostring(head.sub) ..
"\|sup:" .. tostring(head.sup) ..
"\|left:" .. tostring(head.left) ..
"\|degree:" .. tostring(head.degree) ..
"\|next:" .. string.gsub(tostring(head.next),"([><])","\\\%1") ..
"\|prev:" .. string.gsub(tostring(head.prev),"([><])","\\\%1"))
end
if id == node.id("accentfraction") then
k = k + 1
nd[n] = gv.node(g,ndlbl) res = gv.setv(nd[n],"shape","record")
res = gv.setv(nd[n],"label",tostring(k) .. " " .. "accentfraction" ..
"\|id:" .. tostring(head.id) ..
"\|subtype:" .. tostring(head.subtype) ..
"\|attr:" .. string.gsub(tostring(head.attr),"([><])","\\\%1") ..
"\|nucleuswidth:" .. tostring(head.nucleuswidth) .. "\|subnum:" .. tostring(head.subnum) .. "\|supdenom:" .. tostring(head.supdenom) .. "\|accentleft:" .. tostring(head.accentleft) .. "\|bot_accentright:" .. tostring(head.bot_accentright) ..
"\|next:" .. string.gsub(tostring(head.next),"([><])","\\\%1") ..
"\|prev:" .. string.gsub(tostring(head.prev),"([><])","\\\%1"))
end
if id == node.id("vcenterunder") then
k = k + 1
nd[n] = gv.node(g,ndlbl) res = gv.setv(nd[n],"shape","record")
res = gv.setv(nd[n],"label",tostring(k) .. " " .. "vcenterunder" ..
"\|id:" .. tostring(head.id) ..
"\|subtype:" .. tostring(head.subtype) ..
"\|prev:" .. string.gsub(tostring(head.prev),"([><])","\\\%1"))
end
if id == node.id("fenceover") then
k = k + 1
nd[n] = gv.node(g,ndlbl) res = gv.setv(nd[n],"shape","record")
res = gv.setv(nd[n],"label",tostring(k) .. " " .. "fenceover" ..
"\|id:" .. tostring(head.id) ..
"\|subtype:" .. tostring(head.subtype) ..
"\|attr:" .. string.gsub(tostring(head.attr),"([><])","\\\%1") ..
"\|delimnucleus:" .. tostring(head.delimnucleus) .. "\|prevsub:" .. tostring(head.sub) .. "\|sup:" .. tostring(head.sup) .. "\|next:" .. string.gsub(tostring(head.prevnext),"([><])","\\\%1") .. "\|nextprev:" .. string.gsub(tostring(head.nextprev),"([><])","\\\%1"))
end
if id == node.id("math_characcent") then
k = k + 1
nd[n] = gv.node(g,ndlbl) res = gv.setv(nd[n],"shape","record")
res = gv.setv(nd[n],"label",tostring(k) .. " " .. "math_characcent" ..
"\|id:" .. tostring(head.id) ..
"\|subtype:" .. tostring(head.subtype) ..
"\|attr:" .. string.gsub(tostring(head.attr),"([><])","\\\%1") ..
"\|famnucleus:" .. tostring(head.famnucleus) .. "\|charsub:" .. tostring(head.charsub) .. "\|sup:" .. tostring(head.sup) .. "\|accent:" .. tostring(head.accent) .. "\|bot_accent:" .. tostring(head.bot_accent) ..
"\|next:" .. string.gsub(tostring(head.next),"([><])","\\\%1") ..
"\|prev:" .. string.gsub(tostring(head.prev),"([><])","\\\%1"))
end
if id == node.id("sub_boxvcenter") then
k = k + 1
nd[n] = gv.node(g,ndlbl) res = gv.setv(nd[n],"shape","record")
res = gv.setv(nd[n],"label",tostring(k) .. " " .. "sub_boxvcenter" ..
"\|id:" .. tostring(head.id) ..
"\|subtype:" .. tostring(head.subtype) ..
"\|attr:" .. string.gsub(tostring(head.attr),"([><])","\\\%1") ..
"\|listnucleus:" .. string.gsub(tostring(head.listnucleus),.. "\|sub:".. tostring([><]head.sub)",.. "\\\%1|sup:".. tostring(head.sup) .. "\|prevnext:" .. string.gsub(tostring(head.prevnext),"([><])","\\\%1") .. "\|nextprev:" .. string.gsub(tostring(head.nextprev),"([><])","\\\%1"))
end
if id == node.id("sub_mlistfence") then
k = k + 1
nd[n] = gv.node(g,ndlbl) res = gv.setv(nd[n],"shape","record")
res = gv.setv(nd[n],"label",tostring(k) .. " " .. "sub_mlistfence" ..
"\|id:" .. tostring(head.id) ..
"\|subtype:" .. tostring(head.subtype) ..
"\|attr:" .. string.gsub(tostring(head.attr),"([><])","\\\%1") ..
"\|listdelim:" .. string.gsub(tostring(head.list),"([><])","\\\%1"delim) ..
"\|prev:" .. string.gsub(tostring(head.prev),"([><])","\\\%1") ..
"\|next:" .. string.gsub(tostring(head.next),"([><])","\\\%1"))
end
if id == node.id("math_text_charmath_char") then
k = k + 1
nd[n] = gv.node(g,ndlbl) res = gv.setv(nd[n],"shape","record")
res = gv.setv(nd[n],"label",tostring(k) .. " " .. "math_text_charmath_char" ..
"\|id:" .. tostring(head.id) ..
"\|subtype:" .. tostring(head.subtype) ..
"\|prev:" .. string.gsub(tostring(head.prev),"([><])","\\\%1"))
end
if id == node.id("delimsub_box") then
k = k + 1
nd[n] = gv.node(g,ndlbl) res = gv.setv(nd[n],"shape","record")
res = gv.setv(nd[n],"label",tostring(k) .. " " .. "delimsub_box" ..
"\|id:" .. tostring(head.id) ..
"\|subtype:" .. tostring(head.subtype) ..
"\|attr:" .. string.gsub(tostring(head.attr),"([><])","\\\%1") ..
"\|small_famlist:" .. string.gsub(tostring(head.small_famlist) .. "\|small_char:," .. tostring(head.small_char[><]) .. ","\|large_fam:" .. tostring(head.large_fam) .. "\|large_char:\%1" .. tostring(head.large_char) .. "\|nextprev:" .. string.gsub(tostring(head.nextprev),"([><])","\\\%1") .. "\|prevnext:" .. string.gsub(tostring(head.prevnext),"([><])","\\\%1"))
end
if id == node.id("margin_kernsub_mlist") then
k = k + 1
nd[n] = gv.node(g,ndlbl) res = gv.setv(nd[n],"shape","record")
res = gv.setv(nd[n],"label",tostring(k) .. " " .. "margin_kernsub_mlist" ..
"\|id:" .. tostring(head.id) ..
"\|subtype:" .. tostring(head.subtype) ..
"\|attr:" .. string.gsub(tostring(head.attr),"([><])","\\\%1") ..
"\|widthlist:" .. string.gsub(tostring(head.widthlist) .. ,"([><])","\|glyph:\\%1" .. tostring(head.glyph) .. "\|nextprev:" .. string.gsub(tostring(head.nextprev),"([><])","\\\%1") .. "\|prevnext:" .. string.gsub(tostring(head.prevnext),"([><])","\\\%1"))
end
if id == node.id("glyphmath_text_char") then
k = k + 1
nd[n] = gv.node(g,ndlbl) res = gv.setv(nd[n],"shape","record")
res = gv.setv(nd[n],"label",tostring(k) .. " " .. "glyphmath_text_char" ..
"\|id:" .. tostring(head.id) ..
"\|subtype:" .. tostring(head.subtype) ..
"\|attr:" .. string.gsub(tostring(head.attr),"([><])","\\\%1") ..
"\|fam:" .. tostring(head.fam) ..
"\|char:" .. tostring(head.char) ..
"\|font:" .. tostring(head.font) .. "\|lang:" .. tostring(head.lang) .. "\|left:" .. tostring(head.left) .. "\|right:" .. tostring(head.right) .. "\|uchyph:" .. tostring(head.uchyph) .. "\|componentsnext:" .. string.gsub(tostring(head.componentsnext),"([><])","\\\%1") .. "\|xoffset:" .. tostring(head.xoffset) .. "\|yoffset:" .. tostring(head.yoffset) .. "\|prev:" .. string.gsub(tostring(head.prev),"([><])","\\\%1") .. "\|next:" .. string.gsub(tostring(head.next),"([><])","\\\%1")) end if id == node.id("align_recorddelim") then
k = k + 1
nd[n] = gv.node(g,ndlbl) res = gv.setv(nd[n],"shape","record")
res = gv.setv(nd[n],"label",tostring(k) .. " " .. "align_recorddelim" ..
"\|id:" .. tostring(head.id) ..
"\|subtype:" .. tostring(head.subtype) ..
"\|attr:" .. string.gsub(tostring(head.attr),"([><])","\\\%1") .. "\|small_fam:" .. tostring(head.small_fam) .. "\|small_char:" .. tostring(head.small_char) .. "\|large_fam:" .. tostring(head.large_fam) .. "\|large_char:" .. tostring(head.large_char) .. "\|next:" .. string.gsub(tostring(head.next),"([><])","\\\%1") .. "\|prev:" .. string.gsub(tostring(head.prev),"([><])","\\\%1"))
end
if id == node.id("pseudo_filemargin_kern") then
k = k + 1
nd[n] = gv.node(g,ndlbl) res = gv.setv(nd[n],"shape","record")
res = gv.setv(nd[n],"label",tostring(k) .. " " .. "pseudo_filemargin_kern" ..
"\|id:" .. tostring(head.id) ..
"\|subtype:" .. tostring(head.subtype) ..
"\|attr:" .. string.gsub(tostring(head.attr),"([><])","\\\%1") .. "\|width:" .. tostring(head.width) .. "\|glyph:" .. tostring(head.glyph) .. "\|next:" .. string.gsub(tostring(head.next),"([><])","\\\%1") .. "\|prev:" .. string.gsub(tostring(head.prev),"([><])","\\\%1"))
end
if id == node.id("pseudo_lineglyph") then
k = k + 1
nd[n] = gv.node(g,ndlbl) res = gv.setv(nd[n],"shape","record")
res = gv.setv(nd[n],"label",tostring(k) .. " " .. "pseudo_lineglyph" ..
"\|id:" .. tostring(head.id) ..
"\|subtype:" .. tostring(head.subtype) ..
"\|attr:" .. string.gsub(tostring(head.attr),"([><])","\\\%1") ..
"\|char:" .. tostring(head.char) ..
"\|font:" .. tostring(head.font) ..
"\|lang:" .. tostring(head.lang) ..
"\|left:" .. tostring(head.left) ..
"\|right:" .. tostring(head.right) ..
"\|uchyph:" .. tostring(head.uchyph) ..
"\|components:" .. string.gsub(tostring(head.components),"([><])","\\\%1") ..
"\|xoffset:" .. tostring(head.xoffset) ..
"\|yoffset:" .. tostring(head.yoffset) ..
"\|prev:" .. string.gsub(tostring(head.prev),"([><])","\\\%1") ..
"\|next:" .. string.gsub(tostring(head.next),"([><])","\\\%1"))
end
if id == node.id("page_insertalign_record") then
k = k + 1
nd[n] = gv.node(g,ndlbl) res = gv.setv(nd[n],"shape","record")
res = gv.setv(nd[n],"label",tostring(k) .. " " .. "page_insertalign_record" ..
"\|id:" .. tostring(head.id) ..
"\|subtype:" .. tostring(head.subtype) ..
"\|height:" .. tostring(head.height) .. "\|last_ins_ptr:" .. tostring(head.last_ins_ptr) .. "\|best_ins_ptr:" .. tostring(head.best_ins_ptr) .. "\|next:" .. string.gsub(tostring(head.next),"([><])","\\\%1") .. "\|prev:" .. string.gsub(tostring(head.prev),"([><])","\\\%1"))
end
if id == node.id("split_insertpseudo_file") then
k = k + 1
nd[n] = gv.node(g,ndlbl) res = gv.setv(nd[n],"shape","record")
res = gv.setv(nd[n],"label",tostring(k) .. " " .. "split_insertpseudo_file" ..
"\|id:" .. tostring(head.id) ..
"\|subtype:" .. tostring(head.subtype) ..
"\|next:" .. string.gsub(tostring(head.next),"([><])","\\\%1")) end if id == node.id("pseudo_line") then k = k + 1 nd[n] = gv.node(g,ndlbl) res = gv.setv(nd[n],"shape","record") res = gv.setv(nd[n],"label",tostring(k) .. " " .. "pseudo_line" .. "\|id:" .. tostring(head.id) .. "\|subtype:" .. tostring(head.subtype) .. "\|next:" .. string.gsub(tostring(head.next),"([><])","\\\%1")) end if id == node.id("page_insert") then k = k + 1 nd[n] = gv.node(g,ndlbl) res = gv.setv(nd[n],"shape","record") res = gv.setv(nd[n],"label",tostring(k) .. " " .. "page_insert" .. "\|id:" .. tostring(head.id) .. "\|subtype:" .. tostring(head.subtype) .. "\|height:" .. tostring(head.height) .. "\|last_ins_ptr:" .. tostring(head.last_ins_ptr) .. "\|best_ins_ptr:" .. tostring(head.best_ins_ptr) .. "\|next:" .. string.gsub(tostring(head.next),"([><])","\\\%1") .. "\|prev:" .. string.gsub(tostring(head.prev),"([><])","\\\%1")) end if id == node.id("split_insert") then k = k + 1 nd[n] = gv.node(g,ndlbl) res = gv.setv(nd[n],"shape","record") res = gv.setv(nd[n],"label",tostring(k) .. " " .. "split_insert" .. "\|id:" .. tostring(head.id) .. "\|subtype:" .. tostring(head.subtype) .. "\|height:" .. tostring(head.height) ..
"\|last_ins_ptr:" .. tostring(head.last_ins_ptr) ..
"\|best_ins_ptr:" .. tostring(head.best_ins_ptr) ..
if __name__ == '__main__' :
dens = density('u-random-int','test-001.pdf',10,7,'o') dens.run()</pre>   <texcode>\startluacodefunction testR(samples,outpdf,w,h,kernel) require("python") testR = python.import("test-R") dens = testR.density(samples,outpdf,w,h,kernel) dens.run()end\stopluacode \def\plotdenstiy[#1]{%\getparameters[R][#1]%\expanded{\ctxlua{testR("\Rsamples","\Routpdf",\Rwidth,\Rheight,"\Rkernel")}}%} \setupbodyfont[sans,10pt]\starttext\startTEXpage\plotdenstiy[samples={u-random-int},outpdf={test-001.pdf},width={10},height={7},kernel={o}]\setupcombinations[location=top]\startcombination[1*2]{\vbox{\hsize=400bpThis is a density plot of around {\tt 100 000} random numbers between $0$ and $2^{16}-1$ generated from {\tt \hbox{/dev/urandom}}}}{}{\externalfigure[test-001.pdf][width={400bp}]}{}\stopcombination\stopTEXpage\stoptext</texcode> And here is the plot <br/> [[Image:Test-R.png]] == dbxml ==From site [http://www.oracle.com/database/berkeley-db/xml/index.html (see here)] : ''Oracle Berkeley DB XML is an open source, embeddable XML database with XQuery-based access to documents stored in containers and indexed based on their content. Oracle Berkeley DB XML is built on top of Oracle Berkeley DB and inherits its rich features and attributes. Like Oracle Berkeley DB, it runs in process with the application with no need for human administration. Oracle Berkeley DB XML adds a document parser, XML indexer and XQuery engine on top of Oracle Berkeley DB to enable the fastest, most efficient retrieval of data.'' As test, we can use a dump from wikiversity [http://en.wikiversity.org/wiki/Getting_stats_out_of_Wikiversity_XML_dumps (see here)] .  === Build the cointainer ===First we build the container 'Data.dbxml' in the directory "wikienv" (that must exists) :<pre>"""---"""from bsddb3.db import *from dbxml import *import sysimport reimport time def createEnvironment(home): """Create DBEnv and initialize XmlManager""" try: environment = DBEnv() # environment.set_cachesize(0,512 * 1024 *1024,1) environment.set_lk_max_lockers(10000) environment.set_lk_max_locks(10000) environment.set_lk_max_objects(10000) # initialize DBEnv for transactions environment.open(home, DB_RECOVER|DB_CREATE|DB_INIT_LOCK|DB_DSYNC_LOG| DB_INIT_LOG|DB_INIT_MPOOL|DB_INIT_TXN, 0) except DBError, exc: print exc sys.exit() try: mgr = XmlManager(environment, 0) mgr.setDefaultPageSize(4096) except XmlException, se: print xe sys.exit() return mgr def createContainer(mgr, containerName, flags): """create/open a node container""" try: uc = mgr.createUpdateContext() container = mgr.openContainer(containerName, flags|DB_CREATE, XmlContainer.WholedocContainer) container.addIndex("","title","edge-element-substring-string",uc) container.addIndex("","username","edge-element-substring-string",uc) container.addIndex("","text","edge-element-substring-string",uc) return container except XmlException, ex: print ex sys.exit()  def loadcontent(mgr, container,content,printmsg,k): """ -- """ id= re.compile(r"<id>(.*)</id>") title = re.compile(r"<title>(.*)</title>",re.MULTILINE|re.DOTALL)  id_text = id.search(content,re.MULTILINE|re.DOTALL).group(1) title_text = title.search(content).group(1) docName = '_'.join(title_text.split()) + '_' +id_text txn = False try: # all Container modification operations need XmlUpdateContext uc = mgr.createUpdateContext() # create XmlTransaction for the operation txn = mgr.createTransaction() # use the DBXML_GEN_NAME flag to make sure this # succeeds by creating a new, unique name # Use a try/except block to allow the transaction to # be aborted in the proper scope upon error try: docName = container.putDocument(txn, docName, content, uc, DBXML_GEN_NAME) txn.commit() except XmlException, ex: print k,ex txn.abort() if printmsg: # now, get the document in a new transaction txn = mgr.createTransaction() doc = container.getDocument(txn, docName) name = doc.getName() docContent = doc.getContentAsString() txn.commit() # done with data # print the name and content print name pass except XmlException, inst: print inst if txn: txn.abort() # "main"def main(): home = "wikienv" # some configuration... containerName = "Data.dbxml" # initialize... mgr = createEnvironment(home) # create/open a transactional container container = createContainer(mgr, containerName, DBXML_TRANSACTIONAL)  startpage = re.compile(r"^\s*<page>\s*$") endpage = re.compile(r"^\s*</page>\s*$") id= re.compile(r"<id>(.*)</id>") title = re.compile(r"<title>(.*)</title>",re.MULTILINE|re.DOTALL) text = re.compile(r"<text ([^>]*)>(.*)</text>",re.MULTILINE|re.DOTALL) k,k1,k2 = 0,0,0 startcollect = False #src = file("enwiki-latest-pages-articles.xml","rb") src = file("enwikiversity-20090627-pages-articles.xml",'rb') for line in src: try: k1 = k1 +1 except: k1 = 0 if divmod(k1,10000)[0]>0 and divmod(k1,10000)[1] == 0 : print "k1=%012d,k=%012d ,sleep 1 sec." % (k1,k) #time.sleep(1) if startcollect and endpage.match(line) is None: temp = ''.join((temp,line)) continue if startpage.match(line) is not None: temp = line startcollect = True pos = src.tell() continue if endpage.match(line) is not None: content = ''.join((temp,line)) startcollect = False if title.search(content) is not None and id.search(content) is not None: #title_text = title.search(temp).group(1) #id_text , content_len = id.search(temp,re.MULTILINE|re.DOTALL).group(1), len(temp) #text_text = ((text.search(temp) is not None and text.search(temp).group(2)) or '' )+ ' ' + title_text #keywords = [kk.lower() for kk in re.split("\W",text_text) # if len(kk) >4 and kk.lower() != 'redirect' # and kk.lower() != 'disambiguation' ] #keywords.append(title_text) #keywords = list(set(keywords)) #keywords.sort() printmesg = False if divmod(k,100)[1] == 0 and divmod(k,100)[0] >0: print "%012d sync" %k container.sync() #del container #container = mgr.openContainer(containerName,DBXML_TRANSACTIONAL) #if divmod(k,1200)[1] == 0 and divmod(k,1200)[0] == 1: #print k,title_text,id_text ,pos,content_len,keywords#,temp #printmesg = True #print '%09d insert data...'%k, #return loadcontent(mgr,container,content,printmesg,k) k = k+1 src.close() if __name__ == "__main__": main()</pre> === Make pdf ===We use this modules <tt>wikidbxml_queryTxn.py</tt>to retrive a page, given a title (it can be also used as basis to build more complex queries, but for now it's adeguate ): <pre>from lxml import etreefrom bsddb3.db import *from dbxml import *import StringIOimport fcntlimport osimport pprintimport sysimport timeimport mwlib.docbookwriterfrom mwlib.dummydb import DummyDBfrom mwlib.uparser import parseString  def getXML(title,res): db = DummyDB() r = parseString(title=title, raw=res, wikidb=db) dbw = mwlib.docbookwriter.DocBookWriter() dbw.writeBook(r) pprint.pprint( dbw.getTree() ) return dbw.asstring()  def getConTeXt(title,res): db = DummyDB() r = parseString(title=title, raw=res, wikidb=db) dbw = mwlib.docbookwriter.DocBookWriter() dbw.writeBook(r) article = dbw.getTree() res = []  def managepara(c,res): if c.tag == 'para' and (c.text is not None): res.append(c.text.strip()+r"\par") if c.tag == 'para' and (len(c.getchildren())>0): for c1 in c.iterchildren('ulink'): res.append(r'cfr~\type{%s}\par' %c1.get('url'))   def managetable(c,res): if c.tag == 'informaltable' : res.append(r'\bTABLE') for row in c.iterchildren(): res.append(r'\bTR') for col in row.iterchildren(): res.append(r'\bTD '+ col.text.strip()+ r'\eTD') res.append(r'\eTR') res.append(r'\eTABLE')  def section_content(c,res): managepara(c,res) if c.tag == 'section' : subsection = c subsection_title = subsection.find("sectioninfo").find("title").text.strip() res.append(r"\subsection{%s}" % subsection_title) for sc in subsection.iterchildren(): subsection_content(sc,res)  def subsection_content(c,res): managepara(c,res) if c.tag == 'section' : subsubsection = c subsubsection_title = subsubsection.find("sectioninfo").find("title").text.strip() res.append(r"\subsubsection{%s}" % subsubsection_title) for sc in subsubsection.iterchildren(): subsubsection_content(sc,res) if c.tag == 'informaltable' : managetable(c,res)   def subsubsection_content(c,res): managepara(c,res)   chapter_title = article.find("articleinfo").find("title").text res.append(r"\chapter{%s}" % chapter_title)  section = article.find("section") section_title = section.find("sectioninfo").find("title").text res.append(r"\section{%s}" % section_title)  for c in section.iterchildren(): section_content(c,res) #pprint.pprint(res) return '\n'.join(res)     def query(env=None,mgr=None,container=None,querystring='Foo'): """ Always check with queryPlan (for example matches is not optimized for indexes) """ anID = env.lock_id() lock = env.lock_get(anID, "shared lock", DB_LOCK_READ) updateContext = mgr.createUpdateContext(); try: txn = mgr.createTransaction() resultsContext = mgr.createQueryContext() #queryString = "collection('%s')/page[contains(title,'%s')]" % (container.getName(),data) #queryString = "collection('%s')%s" % (container.getName(),querystring) results = mgr.query(txn, querystring, resultsContext) res = [res.asString() for res in results] txn.commit() return res #print "START",book_name ## ## except XmlException, inst: txn.abort() print "XmlException (", inst.exceptionCode,"): ", inst.what#,'name=',theName if inst.exceptionCode == DATABASE_ERROR: print "Database error code:",inst.dbError env.lock_put(lock) env.lock_id_free(anID) print 'OK exit' def getArtitleByTitle(title): pass env = DBEnv() env.set_cachesize(0, 64 * 1024 * 1024, 1) path2DbEnv ='wikienv' env.open(path2DbEnv,DB_THREAD|DB_REGISTER|DB_RECOVER|DB_INIT_MPOOL|DB_CREATE|DB_INIT_LOCK|DB_INIT_LOG|DB_INIT_TXN, 0) mgr = XmlManager(env,0) containerTxn = mgr.createTransaction() theContainer = "Data.dbxml" container = mgr.openContainer(containerTxn, theContainer) containerTxn.commit() ## lockfile = open("lock.kmgr", "w") fcntl.flock(lockfile, fcntl.LOCK_EX) try: res = set() querystring = 'collection("%s")/page[contains(title,"%s")]/revision/text/text()' % (theContainer,title) res = res.union(query(env,mgr,container,querystring=querystring)) res = ''.join(list(res)).decode('utf8') #res = getXML(title,res) #open('res.dbk','w').write( " ".join(res.split()) ) res = getConTeXt(title,res) return res except Exception,e: print "error on read:" ,e fcntl.flock(lockfile, fcntl.LOCK_UN) lockfile.close() def writeres(title,preamble,postamble,filename):  res = getArtitleByTitle(title=title) if res is not None : res = res.replace('&',r'\&') res = res.replace('#',r'\#') else: res = '' open(filename,'wb').write( '\n'.join((preamble,res,postamble)) )  pass if __name__ == '__main__':  preamble = r"""\usetypescriptfile[type-gentium]\usetypescript[gentium]\setupbodyfont[gentium,10pt]\setuppapersize[A5][A5]\setuplayout[height=middle,topspace=1cm,header={2\lineheight},footer=0pt,backspace=1cm,margin=1cm, width=middle]\starttext"""  postamble = r"""\stoptext"""   title="Primary mathematics/Numbers" filename = 'res.tex' writeres(title,preamble,postamble,filename)</pre> And in the end mkiv wrapper:<texcode>\usetypescriptfile[type-gentium]\usetypescript[gentium]\setupbodyfont[gentium,10pt]\setuppapersize[A5][A5]\setuplayout[height=middle,topspace=1cm,header={2\lineheight},footer=0pt,backspace=1cm,margin=1cm, width=middle]  \startluacodefunction testdbxml(title,preamble,postamble,filename) require("python") pg = python.globals() wikiversity = python.import("wikidbxml_queryTxn") wikiversity.writeres(title,preamble,postamble,filename) end\stopluacode \def\testdbxml[#1]{%\getparameters[dbxml][#1]%\ctxlua{testdbxml("\csname dbxmltitle\endcsname","\csname dbxmlpreamble\endcsname", "\csname dbxmlpostamble\endcsname","\csname dbxmlfilename\endcsname")}%\input \csname dbxmlfilename\endcsname %}   \starttext\testdbxml[title={Primary mathematics/Numbers}, preamble={}, postamble={}, filename={testres.tex}]\stoptext</texcode> Here here the result: <table class="wikitable"> <tr><td></td> <td>[[Image:Dbxml-1.png]]</td></tr><tr><td>[[Image:Dbxml-2.png]]</td> <td>[[Image:Dbxml-3.png]]</td></tr></table> One can also use sqlite that comes with python to query for titles <tt>category.db</tt>made from (for example) <tt>enwikiversity-20090627-category.sql</tt>,so reports are more simpler:just put this in python code above, right before 'if __name__' ...:<pre>import sqlite3def querycategory(title): conn = sqlite3.connect('category.db') c = conn.cursor() t = (title,) c.execute('select cat_title from category where cat_title like "%%%s%%" ;' % t) res = [row[0] for row in c] conn.commit() c.close() return res  def simplereports(title): res = querycategory(title) j = 0 for r in res: g = r.replace('_',' ') print g title= g.encode('utf8') filename = 'reps%04d.tex' % j writeres(title,'','',filename) j = j+1 return j </pre> Similary, add this to tex code<texcode>\startluacodefunction listtitles(title) require("python") pg = python.globals() wikiversity = python.import("wikidbxml_queryTxn") r = wikiversity.querycategory(title) local j = 0 local res = r[j] or {} while res do local d = string.format("\%s\\par",string.gsub(tostring(res),'_',' ')) tex.sprint(tex.ctxcatcodes,d) j = j+1 res = r[j] endend\stopluacode  \startluacodefunction simplereports(title) require("python") pg = python.globals() wikiversity = python.import("wikidbxml_queryTxn") r = wikiversity.simplereports(title) local j = tonumber(r) for v = 0,j-1 do local d = string.format("\\input reps\%04d ",v) tex.sprint(tex.ctxcatcodes,d) end print( j )end\stopluacode</texcode>
and test it with
<texcode>
\startluacode
function testR(samples,outpdf,w,h,kernel)
require("python")
testR = python.import("test-R")
dens = testR.density(samples,outpdf,w,h,kernel)
dens.run()
end
\stopluacode
 
\def\plotdenstiy[#1]{%
\getparameters[R][#1]%
\expanded{\ctxlua{testR("\Rsamples","\Routpdf",\Rwidth,\Rheight,"\Rkernel")}}%
}
 
\setupbodyfont[sans,10pt]
\starttext
\startTEXpage\plotdenstiy[samples={u-random-int},outpdf={test-001.pdf},width={10},height={7},kernel={o}]\setupcombinations[location=top]\startcombination[1*2]{\vbox{\hsize=400bpThis is a density plot of around {\tt 100 000} random numbers bfb Query for between $0$ and $2^{16'geometr':}-1$ generated from {\tt \hbox{/dev/urandom}}}}ctxlua{listtitles("geometr")}%{\externalfigure[test-001.pdf][width={400bp}]}ctxlua{simplereports("geometr")}\stopcombination\stopTEXpage%
\stoptext
</texcode>
And here is the plot <br/> [[Image:Test-R(query results are stored in reps0001.png]]tex ,reps0002.tex ,..and so on.)
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