2 % Some utilities for formatting (extended) lambda calculus and
6 \startuseMPgraphic{HLine}
8 % Create a rectangle of the full size
9 a := origin -- (\MPvar{width}, 0mm);
11 b := a randomized (\overlaywidth / 50) ;
13 drawoptions (withpen pencircle scaled .75mm withcolor black) ;
17 % Draw a line with the given options. Accepts only the 'width' option. Be
18 % careful that these are metapost options, so use \the\textwidth instead of
19 % textwidth, and a metapost expression for arithmethic (e.g. 0.5 *
20 % \the\textwidth instead of 0.5\textwidth).
22 {\setupMPvariables[HLine][#1]%
25 \startuseMPgraphic{HDLine}
27 % Create a rectangle of the full size
28 a := origin -- (\MPvar{width}, 0mm);
30 b := a randomized (\overlaywidth / 100) ;
32 drawoptions (withpen pencircle scaled .75mm withcolor black dashed evenly) ;
36 % Draw a line with the given options. Accepts only the 'width' option. Be
37 % careful that these are metapost options, so use \the\textwidth instead of
38 % textwidth, and a metapost expression for arithmethic (e.g. 0.5 *
39 % \the\textwidth instead of 0.5\textwidth).
41 {\setupMPvariables[HDLine][#1]%
42 \useMPgraphic{HDLine}}
44 \startuseMPgraphic{box}
46 % Create a rectangle of the full size
47 a := unitsquare xyscaled(\overlaywidth,\overlayheight);
49 b := a randomized (min(\overlayheight, \overlaywidth) / 25) ;
51 drawoptions (withpen pencircle scaled .75mm withcolor black) ;
55 \defineoverlay[box][\useMPgraphic{box}]
57 % Define \{start,stop}boxed with a nice metapost box around it.
58 \defineframedtext[boxed][width=fit,background=box,frame=off]
60 % Install the lambda calculus pretty-printer, as defined in pret-lam.lua.
61 \installprettytype [LAM] [LAM]
62 % Define \startlambda \stoplambda
63 \definetyping[lambda][option=LAM,style=sans,before=\startboxed,after=\stopboxed,strip=auto]
64 % Define \startunboxedlambda \stopunboxedlambda
65 \definetyping[unboxedlambda][option=LAM,style=sans,strip=auto]
67 % Define \lam{} (since \lambda is taken)
68 \definetype[lam][option=LAM,style=sans]
70 % Install the transformation pretty-printer, as defined in pret-trans.lua.
71 \installprettytype [TRANS] [TRANS]
72 % Define \starttrans \stoptrans
73 \definetyping[trans][option=TRANS,style=normal,before=\startboxed,after=\stopboxed,strip=auto]
75 % Install the haskell pretty-printer, as defined in pret-haskell.lua.
76 \installprettytype [HASKELL] [HASKELL]
77 % Define \starthaskell \stophaskell
78 \definetyping[haskell][option=HASKELL,before=\startboxed,after=\stopboxed,strip=auto]
80 \definetype[hs][option=HASKELL,style=mono]
82 % Type the given buffer with the lambda typing style.
83 % e.g., \typebufferlam{buffname}
84 \define[1]\typebufferlam{
85 % We can't use \startlambda here defined by definetyping[lambda] above when
86 % typing buffers, so instead we'll redfine the options here.
87 \setuptyping[option=LAM,style=sans,before=,after=,strip=auto]
91 % Reset the typing options
92 \setuptyping[option=none,style=\tttf,strip=auto]
95 % Type the given buffer with the haskell typing style.
96 % e.g., \typebufferhs{buffname}
97 \define[1]\typebufferhs{
98 % We can't use \startlambda here defined by definetyping[lambda] above when
99 % typing buffers, so instead we'll redfine the options here.
100 \setuptyping[option=HASKELL,style=mono,strip=auto]
104 % Reset the typing options
105 \setuptyping[option=none,style=\tttf,strip=auto]
108 % Display a useMPgraphic in a pretty box
109 \define[1]\boxedgraphic{
115 % Define an "example" float. Don't add box around it, since an example will
116 % commonly contain two boxed items (Before / after, code / picture).
117 \definefloat[example][examples]
118 \setupcaption[example][location=top] % Put captions on top
119 % Define a definition float that shares its numbering and setting with
121 \definefloat[definition][definitions][example]
122 % Make sure the label really says definition instead of example, this
123 % seems to be a bug in ConTeXt (\redodefinefloat in strc-flt.mkiv has
124 % \presetlabeltext[#1=\Word{#3}~]% which should reference #1 instead of
126 \setuplabeltext[en][definition=Definition]
128 % Margin magic taken from
129 % http://www.pragma-ade.com/general/manuals/details.pdf By setting negative
130 % margin distances, we put our float inside the outer margin. I think we set
131 % both left and right margin distance, because we don't know what will be the
132 % outer margin (and it will probably only use the distance of the margin it's
133 % actually aligning against).
134 % The default= option corresponds to the first option to \placefloat.
135 % outer puts it in the outer margin, none means no caption, high means
136 % no spacing at the top (placing it high wrt the text) and low means no
137 % spacing at the bottom.
138 \setupfloat[intermezzo][leftmargindistance=-\leftmarginwidth, rightmargindistance=-\rightmarginwidth, default={outer,none,low,high}]
140 % Let floats float next to titles, instead of inserting whitespace so a
141 % section head comes after a float.
142 \setupheads[aligntitle=float]
144 % A variant of \startquotation that puts a citation directly after the
146 \long\def\startcitedquotation[#1]#2\stopcitedquotation
149 \symbol[leftquotation]%
150 #2\removeunwantedspaces
151 \symbol[rightquotation]%
156 % vim: set sw=2 sts=2 expandtab: