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if not modules then modules = { } end modules ['java-ini'] = {
version = 1.001,
comment = "companion to java-ini.mkiv",
author = "Hans Hagen, PRAGMA-ADE, Hasselt NL",
copyright = "PRAGMA ADE / ConTeXt Development Team",
license = "see context related readme files"
}
local format = string.format
local concat = table.concat
local lpegmatch, lpegP, lpegR, lpegS, lpegC = lpeg.match, lpeg.P, lpeg.R, lpeg.S, lpeg.C
local allocate = utilities.storage.allocate
-- todo: don't flush scripts if no JS key
interactions.javascripts = interactions.javascripts or { }
local javascripts = interactions.javascripts
javascripts.codes = allocate()
javascripts.preambles = allocate()
javascripts.functions = allocate()
local codes, preambles, functions = javascripts.codes, javascripts.preambles, javascripts.functions
local preambled = { }
local function storefunction(s)
functions[s] = true
end
local uses = lpegP("uses")
local used = lpegP("used")
local left = lpegP("{")
local right = lpegP("}")
local space = lpegS(" \r\n")
local spaces = space^0
local braced = left * lpegC((1-right-space)^1) * right
local unbraced = lpegC((1-space)^1)
local name = spaces * (braced + unbraced) * spaces
local any = lpegP(1)
local script = lpegC(any^1)
local funct = lpegP("function")
local leftp = lpegP("(")
local rightp = lpegP(")")
local fname = spaces * funct * spaces * (((1-space-left)^1)/storefunction) * spaces * leftp
local parsecode = name * ((uses * name) + lpeg.Cc("")) * spaces * script
local parsepreamble = name * ((used * name) + lpeg.Cc("")) * spaces * script
local parsefunctions = (fname + any)^0
function javascripts.storecode(str)
local name, uses, script = lpegmatch(parsecode,str)
if name and name ~= "" then
codes[name] = { uses, script }
end
end
function javascripts.storepreamble(str) -- now later
local name, used, script = lpegmatch(parsepreamble,str)
if name and name ~= "" then
preambles[#preambles+1] = { name, used, script }
preambled[name] = #preambles
lpegmatch(parsefunctions,script)
end
end
function javascripts.setpreamble(name,script) -- now later
if name and name ~= "" then
preambles[#preambles+1] = { name, "now", script }
preambled[name] = #preambles
lpegmatch(parsefunctions,script)
end
end
function javascripts.addtopreamble(name,script) -- now later
if name and name ~= "" then
local p = preambled[name]
if p then
preambles[p] = { "now", preambles[p] .. " ;\n" .. script }
else
preambles[#preambles+1] = { name, "now", script }
preambled[name] = #preambles
lpegmatch(parsefunctions,script)
end
end
end
function javascripts.usepreamblenow(name) -- now later
if name and name ~= "" and preambled[name] then
preambles[preambled[name]][2] = "now"
end
end
local splitter = lpeg.Ct(lpeg.splitat(lpeg.patterns.commaspacer))
local used = false
function javascripts.code(name,arguments)
local c = codes[name]
if c then
local u, code = c[1], c[2]
if u ~= "" then
local p = preambled[u]
if p then
preambles[p][1] = "now"
end
end
used = true
return code
end
local f = functions[name]
if f then
used = true
if arguments then
local args = lpegmatch(splitter,arguments)
for i=1,#args do -- can be a helper
args[i] = format("%q",args[i])
end
return format("%s(%s)",name,concat(args,","))
else
return format("%s()",name)
end
end
end
function javascripts.flushpreambles()
local t = { }
if used then
for i=1,#preambles do
local preamble = preambles[i]
if preamble[2] == "now" then
t[#t+1] = { preamble[1], preamble[3] }
end
end
end
return t
end
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