1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
|
%D \module
%D [ file=spec-mis,
%D version=1997.04.01,
%D title=\CONTEXT\ Special Macros,
%D subtitle=Miscellaneous Macros,
%D author=Hans Hagen,
%D date=\currentdate,
%D copyright={PRAGMA / Hans Hagen \& Ton Otten}]
%C
%C This module is part of the \CONTEXT\ macro||package and is
%C therefore copyrighted by \PRAGMA. See mreadme.pdf for
%C details.
%D Quite some modules in this group are dedicated to supporting
%D \PDF\ directly by means of \PDFTEX or indirectly by using
%D Acrobat Distiller. This module implements some common
%D features.
\writestatus{loading}{ConTeXt Special Macros / Miscellaneous Macros}
\unprotect
%D \macros
%D {URLhash}
%D
%D A rather trivial macro:
\expandafter\def\expandafter\URLhash\expandafter{\string#}
%D \macros
%D {ifusepagedestinations}
%D
%D In \PDF\ version 1.0 only page references were supported,
%D while in \DVIWINDO\ 1.N only named references were accepted.
%D Therefore \CONTEXT\ supports both methods of referencing. In
%D \PDF\ version 1.1 named destinations arrived. Lack of
%D continuous support of version 1.1 viewers for \MSDOS\
%D therefore sometimes forces us to prefer page references. As
%D a bonus, they are faster too and have no limitations. How
%D fortunate we were having both mechanisms available when the
%D version 3.0 (\PDF\ version 1.2) viewers proved to be too
%D bugged to support named destinations.
\newif\ifusepagedestinations
%D \macros
%D {ifhighlighthyperlinks}
%D
%D The next switch can be used to make user hyperlinks are
%D not highlighted when clicked on.
\newif\ifhighlighthyperlinks
%D \macros
%D {ifgotonewwindow}
%D
%D To make the {\em goto previous jump} feature more
%D convenient when using more than one file, it makes sense
%D to force the viewer to open a new window for each file
%D opened.
\newif\ifgotonewwindow
%D \macros
%D {ifPDFstrokecolor}
%D
%D We can reduce the filesize a bit by setting the next switch
%D to false. The amount of reduction depends on the use of
%D color, but don't expect more than a few percent. Zip
%D compression is already rather efficient in itself.
\newif\ifPDFstrokecolor \PDFstrokecolortrue
%D \macros
%D {dofileinsertion,definefileinsertion,doiffileinsertionsupported}
%D
%D File insertion depend on the driver or \TEX\ variant used.
%D All driver modules use the same scheme for file insertion,
%D and therefore have the next macro in common (stupified
%D per august 2006):
\let\supportedfileinsertions\empty
\let\supportedfilecheckers \empty
\def\definefileinsertion#1#2#3%
{\addtocommalist{#2}\supportedfileinsertions
\setvalue{do#1insert#2}{#3}}
\def\definefilechecker#1#2#3%
{\addtocommalist{#2}\supportedfilecheckers
\setvalue{do#1check#2}{#3}}
\def\dofileinsertion#1#2{\executeifdefined{do#1insert#2}\donothing}
\def\dofilechecker #1#2{\executeifdefined{do#1check#2} \donothing}
\appendtoks \let\supportedfileinsertions\empty \to \everyresetspecials
\appendtoks \let\supportedfilecheckers \empty \to \everyresetspecials
% \def\doiffileinsertionsupportedelse#1%
% {\expanded{\doifinstringelse{#1}{\c!tex,\c!tmp,\supportedfileinsertions}}}
\def\doiffileinsertionsupportedelse#1% lowercasing happens at tex end
{\expanded{\doifinstringelse{\truegraphictype{#1}}{\c!tex,\c!tmp,\supportedfileinsertions}}}
%D This macro is called with 10 arguments, where the first
%D one specifies the driver, like \type{yy} or \type{tr}. The
%D second argument is a \type{{type,method}} pair and the
%D third the filename.
%D Just in case this one is undefined (which can happen if
%D this module is used outside \CONTEXT):
\ifx\setreferencefilename\undefined
\def\setreferencefilename#1\to#2{\edef#2{#1}}
\fi
%D When submitting forms, we need to communicate the format.
\chardef\submitoutputformat=0 % 0=unknown 1=HTML 2=FDF 3=XML
\def\setsubmitoutputformat#1%
{\doifinsetelse{#1}{FDF,fdf}
{\chardef\submitoutputformat2}
{\doifinsetelse{#1}{XML,xml}
{\chardef\submitoutputformat3}
{\chardef\submitoutputformat1}}%
\relax}
%D \macros
%D {escapePSstring}
%D
%D \starttyping
%D \escapePSstring(t\e\1st)))))\to\crap \crap
%D \stoptyping
% testcase: webschrift met lege regels en unbalanced ()
\bgroup
\catcode`\*=\@@escape
\catcode`\\=\@@letter
*long*gdef*escapedPSstring#1%
{*aftergroup*string
*ifnum`#1=12
*aftergroup*n%
*else*ifnum`#1=13
*aftergroup*n%
*else*if#1(%
*aftergroup*(%
*else*if#1)%
*aftergroup*)%
*else*if#1\%
*aftergroup*\%
*else
*aftergroup#1%
*fi*fi*fi*fi*fi}
*egroup
\long\def\escapePSstring#1\to#2%
{\defconvertedargument#2{#1}%
\bgroup
\ifx#2\empty \else
\setverbosecscharacters
\aftergroup\edef
\aftergroup#2%
\aftergroup{%
\expandafter\handletokens#2\with\escapedPSstring
\aftergroup}%
\fi
\egroup}
% \long\def\preservePSpar#1\to#2%
% {\bgroup
% \def\par{\rawcharacter{12}}%
% \expanded{\egroup\noexpand\def\noexpand#2{#1}}}
\long\def\preservePSpar#1\to#2%
{\bgroup
\def\par{\rawcharacter{12}\rawcharacter{12}}% hm, should be one 13 but 12 ff is platform safe
\expanded{\egroup\noexpand\def\noexpand#2{#1}}}
%D \macros
%D {ifPDFunicode}
%D
%D We can use this switch to signal that content streams has
%D to be unicoded.
\newif\ifPDFunicode
%D \macros
%D {makeMPintoPDFobject, handleMPfshow, setMPPDFobject, getMPPDFobject}
%D
%D \METAPOST\ support.
\appendtoks
\chardef\makeMPintoPDFobject\zerocount
\def\setMPPDFobject#1#2{\def\getMPPDFobject{\box#2}}%
\to \everyresetspecials
\appendtoks
\let\handleMPfshow\dohandleMPfshow
\to \everyresetspecials
%D
%D \macros
%D {dosetposition, dosetpositionwdh, dosetpositionplus}
%D
%D Opposite to its \DVI\ counterpart, the \PDFTEX\ backend
%D can provide positional information directly. Since
%D \CONTEXT\ only uses relative positions, the origin is of
%D less importance. Nowadays \XETEX\ also supports this
%D feature.
\ifx\pdfsavepos\undefined
% only for ancient pdftex, less old xetex and current aleph
\def\dosetposition #1{\special{pos:pxy "#1"}}
\def\dosetpositionwhd #1#2#3#4{\special{pos:pxywhd "#1" #2 #3 #4}}
\def\dosetpositionplus#1#2#3#4#5{\special{pos:pxyplus "#1" #2 #3 #4 #5}}
\let\flushDVIpositionpapersize\relax
\def\dosetpositionpapersize#1#2%
{\xdef\flushDVIpositionpapersize
{\special{pos:papersize \number#1 \number#2}%
\noexpand\installprogram{dvipos -o \jobname.tuo \jobname.dvi }%
\global\noexpand\let\noexpand\flushDVIpositionpapersize\relax}}
% kind of obsolete since nowadays xetex supports \pdfsavepos as well
\ifnum\texengine=\xetexengine
\def\dosetpositionpapersize#1#2%
{\xdef\flushDVIpositionpapersize
{\special{pos:papersize \number#1 \number#2}%
\noexpand\installprogram{dvipos -o \jobname.tuo \jobname.xdv }%
\global\noexpand\let\noexpand\flushDVIpositionpapersize\relax}}
\fi
\prependtoksonce \flushDVIpositionpapersize \to \everyshipout
\else
\def\dosetposition#1%
{\pdfsavepos
\dolazysaveposition
{#1}%
{\noexpand\realfolio}%
{\noexpand\the\dimexpr\pdflastxpos\scaledpoint\relax}%
{\noexpand\the\dimexpr\pdflastypos\scaledpoint\relax}}%
\def\dosetpositionwhd#1#2#3#4%
{\pdfsavepos
\dolazysavepositionwhd
{#1}%
{\noexpand\realfolio}%
{\noexpand\the\dimexpr\pdflastxpos\scaledpoint\relax}%
{\noexpand\the\dimexpr\pdflastypos\scaledpoint\relax}%
{#2}{#3}{#4}}
\def\dosetpositionplus#1#2#3#4#5%
{\pdfsavepos
\dolazysavepositionplus
{#1}%
{\noexpand\realfolio}%
{\noexpand\the\dimexpr\pdflastxpos\scaledpoint\relax}%
{\noexpand\the\dimexpr\pdflastypos\scaledpoint\relax}%
{#2}{#3}{#4}{#5}}
\let\dosetpositionpapersize\gobbletwoarguments
\fi
%D Handy to have this available asap:
\ifdefined\everyPDFxform \newtoks\everyPDFxform \fi
\ifdefined\everyPDFximage \newtoks\everyPDFximage \fi
\protect \endinput
|
