summaryrefslogtreecommitdiff
path: root/tex/context/base/mkiv/cldf-bas.lua
blob: 1067a17d57ed54867bfe26f030c17d23be53724b (plain)
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
if not modules then modules = { } end modules ['cldf-bas'] = {
    version   = 1.001,
    comment   = "companion to cldf-ini.mkiv",
    author    = "Hans Hagen, PRAGMA-ADE, Hasselt NL",
    copyright = "PRAGMA ADE / ConTeXt Development Team",
    license   = "see context related readme files"
}

-- -- speedtest needed:
--
-- local flush, writer = context.getlogger()
--
-- trackers.register("context.trace",function(v)
--     flush, writer = context.getlogger()
-- end)
--
-- function context.bgroup()
--     flush(ctxcatcodes,"{")
-- end
--
-- function context.egroup()
--     flush(ctxcatcodes,"}")
-- end

-- maybe use context.generics

local type         = type
local format       = string.format
local utfchar      = utf.char
local concat       = table.concat

local context      = context
local generics     = context.generics
local variables    = interfaces.variables

local nodepool     = nodes.pool
local new_rule     = nodepool.rule
local new_glyph    = nodepool.glyph

local current_font = font.current
local texgetcount  = tex.getcount
local texsetcount  = tex.setcount

function context.char(k) -- used as escape too, so don't change to utf
    if type(k) == "table" then
        local n = #k
        if n == 1 then
            context([[\char%s\relax]],k[1])
        elseif n > 0 then
            context([[\char%s\relax]],concat(k,[[\relax\char]]))
        end
    else
        if type(k) == "string" then
            k = tonumber(k)
        end
        if type(k) == "number" then
            context([[\char%s\relax]],k)
        end
    end
end

function context.utfchar(k)
    if type(k) == "string" then
        k = tonumber(k)
    end
    if type(k) == "number" then
        context(utfchar(k))
    end
end

-- plain variants

function context.chardef(cs,u)
    context([[\chardef\%s=%s\relax]],k)
end

function context.par()
    context([[\par]]) -- no need to add {} there
end

function context.bgroup()
    context("{")
end

function context.egroup()
    context("}")
end

function context.space()
    context("\\space") -- no " " as that gets intercepted
end

function context.hrule(w,h,d,dir)
    if type(w) == "table" then
        context(new_rule(w.width,w.height,w.depth,w.dir))
    else
        context(new_rule(w,h,d,dir))
    end
end

function context.glyph(id,k)
    if id then
        if not k then
            id, k = current_font(), id
        end
        context(new_glyph(id,k))
    end
end

context.vrule = context.hrule

--~ local hbox, bgroup, egroup = context.hbox, context.bgroup, context.egroup

--~ function context.hbox(a,...)
--~     if type(a) == "table" then
--~         local s = { }
--~         if a.width then
--~             s[#s+1] = "to " .. a.width -- todo: check for number
--~         elseif a.spread then
--~             s[#s+1] = "spread " .. a.spread -- todo: check for number
--~         end
--~         -- todo: dir, attr etc
--~         hbox(false,table.concat(s," "))
--~         bgroup()
--~         context(string.format(...))
--~         egroup()
--~     else
--~         hbox(a,...)
--~     end
--~ end

-- not yet used ... but will get variant at the tex end as well

function context.sethboxregister(n) context([[\setbox %s\hbox]],n) end
function context.setvboxregister(n) context([[\setbox %s\vbox]],n) end

function context.starthboxregister(n)
    if type(n) == "number" then
        context([[\setbox%s\hbox{]],n)
    else
        context([[\setbox\%s\hbox{]],n)
    end
end

function context.startvboxregister(n)
    if type(n) == "number" then
        context([[\setbox%s\vbox{]],n)
    else
        context([[\setbox\%s\vbox{]],n)
    end
end

context.stophboxregister = context.egroup
context.stopvboxregister = context.egroup

function context.flushboxregister(n)
    if type(n) == "number" then
        context([[\box%s ]],n)
    else
        context([[\box\%s]],n)
    end
end

function context.beginvbox()
    context([[\vbox{]]) -- we can do \bvbox ... \evbox (less tokens)
end

function context.beginhbox()
    context([[\hbox{]]) -- todo: use fast one
end

context.endvbox = context.egroup
context.endhbox = context.egroup

local function allocate(name,what,cmd)
    local a = format("c_syst_last_allocated_%s",what)
    local n = texgetcount(a) + 1
    if n <= texgetcount("c_syst_max_allocated_register") then
        texsetcount(a,n)
    end
    context("\\global\\expandafter\\%sdef\\csname %s\\endcsname %s\\relax",cmd or what,name,n)
    return n
end

function context.newdimen (name) return allocate(name,"dimen") end
function context.newskip  (name) return allocate(name,"skip") end
function context.newcount (name) return allocate(name,"count") end
function context.newmuskip(name) return allocate(name,"muskip") end
function context.newtoks  (name) return allocate(name,"toks") end
function context.newbox   (name) return allocate(name,"box","mathchar") end