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1%D \module
2%D   [       file=mtx-context-precache,
3%D        version=2014.12.24,
4%D          title=\CONTEXT\ Extra Trickry,
5%D       subtitle=Precaching Fonts,
6%D         author=Hans Hagen,
7%D           date=\currentdate,
8%D      copyright={PRAGMA ADE \& \CONTEXT\ Development Team}]
9%C
10%C This module is part of the \CONTEXT\ macro||package and is
11%C therefore copyrighted by \PRAGMA. See mreadme.pdf for
12%C details.
13
14% begin help
15%
16% usage: context --extra=precache [no options yet]
17%
18% example: context --extra=precache
19%
20% end help
21
22\startluacode
23
24local lower      = string.lower
25local filesuffix = file.suffix
26local findfile   = resolvers.find_file
27
28local report     = logs.reporter("fonts","precache")
29
30function fonts.names.precache()
31    local handlers = fonts.handlers
32    if not handlers then
33        report("no handlers available")
34        return
35    end
36    local otfloader = handlers.otf and handlers.otf.load
37    local afmloader = handlers.afm and handlers.afm.load
38    if not (otfloader or afmloader) then
39        report("no otf or afm handler available")
40        return
41    end
42    fonts.names.load()
43    local data = fonts.names.data
44    if not data then
45        report("no font data available")
46        return
47    end
48    local specifications = data.specifications
49    if not specifications then
50        report("no font specifications available")
51        return
52    end
53    local n = 0
54    for i=1,#specifications do
55        local specification = specifications[i]
56        local filename      = specification.filename
57        local cleanfilename = specification.cleanfilename
58        local foundfile     = findfile(filename)
59        if foundfile and foundfile ~= "" then
60            local suffix = lower(filesuffix(foundfile))
61            if suffix == "otf" or suffix == "ttf" then
62                if otfloader then
63                    report("caching otf file: %s",foundfile)
64                    otfloader(foundfile) -- todo: ttc/sub
65                    n = n + 1
66                end
67            elseif suffix == "afm" then
68                if afmloader then
69                    report("caching afm file: %s",foundfile)
70                    afmloader(foundfile)
71                    n = n + 1
72                end
73            end
74        end
75    end
76    report("%s files out of %s cached",n,#specifications)
77end
78
79\stopluacode
80
81\starttext
82
83\setuppapersize
84  [A4,landscape]
85
86\setuplayout
87  [width=middle,
88   height=middle,
89   footer=0pt,
90   header=1cm,
91   headerdistance=0cm,
92   backspace=5mm,
93   topspace=5mm]
94
95\setupbodyfont
96  [dejavu,6pt,tt]
97
98\startmode[*first]
99    \startluacode
100        fonts.names.precache()
101    \stopluacode
102\stopmode
103
104\startluacode
105    fonts.names.load()
106
107    local specifications = fonts.names.data.specifications
108
109    local sorted = { }
110    local hashed = { }
111
112    for i=1,#specifications do
113        local filename = specifications[i].cleanfilename
114        sorted[i] = filename
115        hashed[filename] = i
116    end
117
118    table.sort(sorted)
119
120    local context  = context
121    local basename = file.basename
122
123    local NC   = context.NC
124    local NR   = context.NR
125    local HL   = context.HL
126    local bold = context.bold
127
128    context.starttabulate { "||||||||||" }
129    HL()
130    NC() bold("format")
131    NC() bold("cleanfilename")
132    NC() bold("filename")
133 -- NC() bold("familyname")
134 -- NC() bold("fontname")
135    NC() bold("fullname")
136    NC() bold("rawname")
137    NC() bold("style")
138    NC() bold("variant")
139    NC() bold("weight")
140    NC() bold("width")
141    NC() NR()
142    HL()
143    for i=1,#sorted do
144        local specification = specifications[hashed[sorted[i]]]
145        NC() context(specification.format)
146        NC() context(specification.cleanfilename)
147        NC() context(basename(specification.filename))
148     -- NC() context(specification.familyname)
149     -- NC() context(specification.fontname)
150        NC() context(specification.fullname)
151        NC() context(specification.rawname)
152        NC() context(specification.style)
153        NC() context(specification.variant)
154        NC() context(specification.weight)
155        NC() context(specification.width)
156        NC() NR()
157    end
158    context.stoptabulate()
159\stopluacode
160
161\stoptext
162