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
|
%D \module
%D [ file=core-fil,
%D version=1997.11.15,
%D title=\CONTEXT\ Core Macros,
%D subtitle=File Support,
%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.
\writestatus{loading}{Context Core Macros / File Support}
\unprotect
% NOT YET DOCUMENTED !!
%
% overal \normalinput
\startmessages dutch library: files
title: files
1: file synoniem -- is al in gebruik voor --
\stopmessages
\startmessages english library: files
title: files
1: file synonym -- is already used for --
\stopmessages
\startmessages german library: files
title: files
1: Dateisynonym -- wird bereits fuer -- benutzt
\stopmessages
\startmessages czech library: files
title: soubory
1: synonymum souboru -- je jiz pouzito pro --
\stopmessages
%D \macros
%D {definefilesynonym}
%D
%D One of the problems with loading files is that their names
%D can depend on the interface language. We therefore need a
%D method to define filesynonyms. The actual synonyms are
%D defined elsewhere, but look like:
%D
%D \starttypen
%D \definefilesynonym [chemic] [chemie]
%D \definefilesynonym [einheit] [eenheid]
%D \definefilesynonym [unit] [eenheid]
%D \stoptypen
%D
%D So we can say in english:
%D
%D \starttypen
%D \usemodules[pictex,chemic,unit]
%D \stoptypen
%D
%D and in dutch:
%D
%D \starttypen
%D \usemodules[pictex,chemie,eenheid]
%D \stoptypen
\def\definefilesynonym%
{\dodoubleempty\dodefinefilesynonym}
\def\dodefinefilesynonym[#1][#2]%
{\doifdefined{\??fs#1}
{\doifnotvalue{\??fs#1}{#2}
{\showmessage{\m!files}{1}{#1 (#2),\getvalue{\??fs#1}}}}%
\doifelse{#1}{#2}
{\letbeundefined{\??fs#1}{#2}}
{\setevalue{\??fs#1}{#2}}}
%D \macros
%D {truefilename}
%D
%D At the system level such a filename can be called upon by
%D saying:
%D
%D \starttypen
%D \truefilename{filename/filesynonym}
%D \stoptypen
%D
%D The implementation shows that nesting is supported.
\def\truefilename#1%
{\ifundefined{\??fs#1}%
#1%
\else
\truefilename{\getvalue{\??fs#1}}%
\fi}
%D \macros
%D {makeshortfilename}
%D
%D To prevent cross platform problems with filenames, we
%D lowercase them as well as only use the first 8~characters.
\def\domakeshortfilename[#1#2#3#4#5#6#7#8#9]%
{\lowercase{\edef\shortfilename{#1#2#3#4#5#6#7#8.}}%
\expandafter\beforesplitstring\shortfilename\at.\to\shortfilename}
\def\makeshortfilename[#1]%
{\edef\fullfilename{#1.........}%
\expanded{\domakeshortfilename[\fullfilename]}}
%D \macros
%D {usemodule}
%D
%D Most of \CONTEXT is preloaded in the format file. Some very
%D domain specific typesetting topics are however dealt with in
%D separate modules, e.g. typesetting of chemical structure
%D formulas. These modules are loaded by:
%D
%D \showsetup{\y!usemodule}
%D
%D More information on the specific modules can be found in
%D their dedicated manuals.
\newconditional\moduleisloaded
\def\dododousemodules#1#2%
{\ifconditional\moduleisloaded\else
\makeshortfilename[#1\truefilename{#2}]%
\doifundefinedelse{\shortfilename\v!aan}
{\setgvalue{\shortfilename\v!aan}{}%
\startreadingfile
\readsysfile{\shortfilename}%
{\showmessage{\m!systems}{5}{#2}%
\settrue\moduleisloaded}%
{}%
\stopreadingfile}
{\showmessage{\m!systems}{7}{#2}%
\settrue\moduleisloaded}%
\fi}
\def\dodousemodules#1%
{\setfalse\moduleisloaded
\dododousemodules\f!moduleprefix {#1}%
\dododousemodules\f!styleprefix {#1}%
\dododousemodules\f!privateprefix{#1}%
\ifconditional\moduleisloaded\else
\showmessage{\m!systems}{6}{#1}%
\fi}
\def\dousemodules[#1]%
{\doifsomething{#1}{\processcommalist[#1]\dodousemodules}%
}% \enablelanguagespecifics[\currentmainlanguage]}
\def\usemodules%
{\dosingleargument\dousemodules}
%D We also support a singular call, which saves us for
%D frustrations when we do a typo.
\let\usemodule=\usemodules
% %D The definition shows that the language specific settings
% %D are activated after loading all the modules specified.
%D \macros
%D {ifprotectbuffers, bufferprefix,
%D TEXbufferfile, MPgraphicfile}
%D
%D The next switch enables protection of temporary filenames,
%D which is needed when we process more files on one path at
%D the same time.
\newif\ifprotectbuffers
\def\bufferprefix%
{\ifprotectbuffers\jobname-\fi}
% also
\def\TEXbufferfile#1%
{\bufferprefix#1.\f!temporaryextension}
%D We also redefine:
\def\MPgraphicfile%
{\bufferprefix mp\ifMPrun run\else graph\fi}
\def\convertMPcolorfile%
{\bufferprefix metacmyk.tmp}
\protect
\endinput
|
