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-rw-r--r--Master/texmf-dist/tex/context/base/mkiv/syst-aux.lua514
1 files changed, 514 insertions, 0 deletions
diff --git a/Master/texmf-dist/tex/context/base/mkiv/syst-aux.lua b/Master/texmf-dist/tex/context/base/mkiv/syst-aux.lua
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index 00000000000..98b92cef3b3
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+++ b/Master/texmf-dist/tex/context/base/mkiv/syst-aux.lua
@@ -0,0 +1,514 @@
+if not modules then modules = { } end modules ['syst-aux'] = {
+ version = 1.001,
+ comment = "companion to syst-aux.mkiv",
+ author = "Hans Hagen, PRAGMA-ADE, Hasselt NL",
+ copyright = "PRAGMA ADE / ConTeXt Development Team",
+ license = "see context related readme files"
+}
+
+-- slower than lpeg:
+--
+-- utfmatch(str,"(.?)(.*)$")
+-- utf.sub(str,1,1)
+
+local tonumber = tonumber
+local utfsub = utf.sub
+local P, S, R, C, Cc, Cs, Carg, lpegmatch = lpeg.P, lpeg.S, lpeg.R, lpeg.C, lpeg.Cc, lpeg.Cs, lpeg.Carg, lpeg.match
+local next = next
+local find = string.find
+
+local context = context
+local implement = interfaces.implement
+local formatters = string.formatters
+local setcatcode = tex.setcatcode
+local utf8character = lpeg.patterns.utf8character
+local settings_to_array = utilities.parsers.settings_to_array
+local settings_to_set = utilities.parsers.settings_to_set
+local setmacro = interfaces.setmacro
+
+local pattern = C(utf8character^-1) * C(P(1)^0)
+
+implement {
+ name = "getfirstcharacter",
+ arguments = "string",
+ actions = function(str)
+ local first, rest = lpegmatch(pattern,str)
+ setmacro("firstcharacter",first)
+ setmacro("remainingcharacters",rest)
+ end
+}
+
+implement {
+ name = "thefirstcharacter",
+ arguments = "string",
+ actions = function(str)
+ local first, rest = lpegmatch(pattern,str)
+ context(first)
+ end
+}
+
+implement {
+ name = "theremainingcharacters",
+ arguments = "string",
+ actions = function(str)
+ local first, rest = lpegmatch(pattern,str)
+ context(rest)
+ end
+}
+
+local pattern = C(utf8character^-1)
+local ctx_doifelse = commands.doifelse
+
+implement {
+ name = "doifelsefirstchar",
+ arguments = { "string", "string" },
+ actions = function(str,chr)
+ ctx_doifelse(lpegmatch(pattern,str) == chr)
+ end
+}
+
+implement {
+ name = "getsubstring",
+ arguments = { "string", "string", "string" },
+ actions = function(str,first,last)
+ context(utfsub(str,tonumber(first),tonumber(last)))
+ end
+}
+
+-- function commands.addtocommalist(list,item)
+-- if list == "" then
+-- context(item)
+-- else
+-- context("%s,%s",list,item) -- using tex.print is some 10% faster
+-- end
+-- end
+--
+-- function commands.removefromcommalist(list,item)
+-- if list == "" then
+-- context(item)
+-- else
+-- -- okay, using a proper lpeg is probably faster
+-- -- we could also check for #l = 1
+-- local l = settings_to_array(list)
+-- local t, n = { }
+-- for i=1,#l do
+-- if l[i] ~= item then
+-- n = n + 1
+-- t[n] = item
+-- end
+-- end
+-- if n == 0 then
+-- context(item)
+-- else
+-- context(concat(list,","))
+-- end
+-- end
+-- end
+
+local pattern = (C((1-P("%"))^1) * Carg(1)) / function(n,d)
+ return formatters["%.0fsp"](d * tonumber(n)/100) end * P("%") * P(-1) -- .0 ?
+
+-- percentageof("10%",65536*10)
+
+implement {
+ name = "percentageof",
+ arguments = { "string", "dimen" },
+ actions = function(str,dim)
+ context(lpegmatch(pattern,str,1,dim) or str)
+ end
+}
+
+-- \gdef\setpercentdimen#1#2%
+-- {#1=\ctxcommand{percentageof("#2",\number#1)}\relax}
+
+local spaces = P(" ")^0 / ""
+local nohash = 1 - P("#")
+local digit = R("09")
+local double = P("##") / "#"
+local single = P("#")
+local sentinel = spaces * (nohash^1 / "\\%0")
+local sargument = (single * digit)^1
+local dargument = (double * digit)^1
+
+local usespaces = nil
+local texpreamble = nil
+
+local pattern = Cs( -- ^-1
+ ( P("spaces") / function() usespaces = true return "" end )^0
+ * spaces
+ * ( P("nospaces") / function() usespaces = false return "" end )^0
+ * spaces
+ * ( P("global") / "\\global" )^0
+ * spaces
+ * ( P("unexpanded") / "\\unexpanded" )^0
+ * spaces
+ * Cc("\\expandafter\\")
+ * spaces
+ * ( P("expanded") / "e" )^0
+ * spaces
+ * ( P((1-S(" #"))^1) / "def\\csname %0\\endcsname" )
+ * spaces
+ * (
+ -- (double * digit)^1 * sentinel^-1 * double^-1
+ -- + (single * digit)^1 * sentinel^-1 * single^-1
+ ( P("[") * dargument * P("]") + dargument)^1 * sentinel^-1 * double^-1
+ + ( P("[") * sargument * P("]") + sargument)^1 * sentinel^-1 * single^-1
+ + sentinel^-1 * (double+single)^-1
+ )
+)
+
+local ctx_dostarttexdefinition = context.dostarttexdefinition
+
+local function texdefinition_one(str)
+ usespaces = nil
+ texpreamble = lpegmatch(pattern,str)
+ if usespaces == true then
+ setcatcode(32,10) -- space
+ setcatcode(13, 5) -- endofline
+ elseif usespaces == false then
+ setcatcode(32, 9) -- ignore
+ setcatcode(13, 9) -- ignore
+ else
+ -- this is default
+ -- setcatcode(32,10) -- space
+ -- setcatcode(13, 9) -- ignore
+ end
+ ctx_dostarttexdefinition()
+end
+
+local function texdefinition_two()
+ context(texpreamble)
+end
+
+implement { name = "texdefinition_one", actions = texdefinition_one, scope = "private", arguments = "string" }
+implement { name = "texdefinition_two", actions = texdefinition_two, scope = "private" }
+
+implement { name = "upper", arguments = "string", actions = { utf.upper, context } }
+implement { name = "lower", arguments = "string", actions = { utf.lower, context } }
+implement { name = "strip", arguments = "string", actions = { string.strip, context } } -- or utf.strip
+
+implement {
+ name = "converteddimen",
+ arguments = { "dimen", "string" },
+ actions = function(dimen,unit)
+ context(number.todimen(dimen,unit or "pt","%0.5f")) -- no unit appended (%F)
+ end
+}
+
+-- where, not really the best spot for this:
+
+implement {
+ name = "immediatemessage",
+ arguments = { "'message'", "string" },
+ actions = logs.status
+}
+
+implement {
+ name = "resettimer",
+ actions = function()
+ statistics.resettiming("whatever")
+ statistics.starttiming("whatever")
+ end
+}
+
+implement {
+ name = "elapsedtime",
+ actions = function()
+ statistics.stoptiming("whatever")
+ context(statistics.elapsedtime("whatever"))
+ end
+}
+
+local accuracy = table.setmetatableindex(function(t,k)
+ local v = formatters["%0." ..k .. "f"]
+ t[k] = v
+ return v
+end)
+
+implement {
+ name = "rounded",
+ arguments = "integer",
+ actions = function(n,m) context(accuracy[n](m)) end
+}
+
+-- not faster but just less tracing:
+
+local firstoftwoarguments = context.firstoftwoarguments
+local secondoftwoarguments = context.secondoftwoarguments
+local firstofoneargument = context.firstofoneargument
+local gobbleoneargument = context.gobbleoneargument
+
+local hash = utilities.parsers.hashes.settings_to_set
+
+local function doifelsecommon(a,b)
+ if a == b then
+ setmacro("commalistelement",a)
+ if a == "" then
+ secondoftwoarguments()
+ else
+ firstoftwoarguments()
+ end
+ return
+ end
+ local ba = find(a,",")
+ local bb = find(b,",")
+ if ba and bb then
+ local ha = hash[a]
+ local hb = hash[b]
+ -- local ha = settings_to_set(a)
+ -- local hb = settings_to_set(b)
+ for k in next, ha do
+ if hb[k] then
+ setmacro("commalistelement",k)
+ firstoftwoarguments()
+ return
+ end
+ end
+ elseif ba then
+ if hash[a][b] then
+ -- if settings_to_set(a)[b] then
+ setmacro("commalistelement",b)
+ firstoftwoarguments()
+ return
+ end
+ elseif bb then
+ if hash[b][a] then
+ -- if settings_to_set(b)[a] then
+ setmacro("commalistelement",a)
+ firstoftwoarguments()
+ return
+ end
+ end
+ setmacro("commalistelement","")
+ secondoftwoarguments()
+end
+
+local function doifcommon(a,b)
+ if a == b then
+ setmacro("commalistelement",a)
+ if a == "" then
+ gobbleoneargument()
+ else
+ firstofoneargument()
+ end
+ return
+ end
+ local ba = find(a,",")
+ local bb = find(b,",")
+ if ba and bb then
+ local ha = hash[a]
+ local hb = hash[b]
+ -- local ha = settings_to_set(a)
+ -- local hb = settings_to_set(b)
+ for k in next, ha do
+ if hb[k] then
+ setmacro("commalistelement",k)
+ firstofoneargument()
+ return
+ end
+ end
+ elseif ba then
+ if hash[a][b] then
+ -- if settings_to_set(a)[b] then
+ setmacro("commalistelement",b)
+ firstofoneargument()
+ return
+ end
+ elseif bb then
+ if hash[b][a] then
+ -- if settings_to_set(b)[a] then
+ setmacro("commalistelement",a)
+ firstofoneargument()
+ return
+ end
+ end
+ setmacro("commalistelement","")
+ gobbleoneargument()
+end
+
+local function doifnotcommon(a,b)
+ if a == b then
+ setmacro("commalistelement",a)
+ if a == "" then
+ firstofoneargument()
+ else
+ gobbleoneargument()
+ end
+ return
+ end
+ local ba = find(a,",")
+ local bb = find(b,",")
+ if ba and bb then
+ local ha = hash[a]
+ local hb = hash[b]
+ -- local ha = settings_to_set(a)
+ -- local hb = settings_to_set(b)
+ for k in next, ha do
+ if hb[k] then
+ setmacro("commalistelement",k)
+ gobbleoneargument()
+ return
+ end
+ end
+ elseif ba then
+ if hash[a][b] then
+ -- if settings_to_set(a)[b] then
+ setmacro("commalistelement",b)
+ gobbleoneargument()
+ return
+ end
+ elseif bb then
+ if hash[b][a] then
+ -- if settings_to_set(b)[a] then
+ setmacro("commalistelement",a)
+ gobbleoneargument()
+ return
+ end
+ end
+ setmacro("commalistelement","")
+ firstofoneargument()
+end
+
+local function doifelseinset(a,b)
+ if a == b then
+ setmacro("commalistelement",a)
+ if a == "" then
+ secondoftwoarguments()
+ else
+ firstoftwoarguments()
+ end
+ return
+ end
+ local bb = find(b,",")
+ if bb then
+ if hash[b][a] then
+ -- if settings_to_set(b)[a] then
+ setmacro("commalistelement",a)
+ firstoftwoarguments()
+ return
+ end
+ end
+ setmacro("commalistelement","")
+ secondoftwoarguments()
+end
+
+local function doifinset(a,b)
+ if a == b then
+ setmacro("commalistelement",a)
+ if a == "" then
+ gobbleoneargument()
+ else
+ firstofoneargument()
+ end
+ return
+ end
+ local bb = find(b,",")
+ if bb then
+ if hash[b][a] then
+ -- if settings_to_set(b)[a] then
+ setmacro("commalistelement",a)
+ firstofoneargument()
+ return
+ end
+ end
+ setmacro("commalistelement","")
+ gobbleoneargument()
+end
+
+local function doifnotinset(a,b)
+ if a == b then
+ setmacro("commalistelement",a)
+ if a == "" then
+ firstofoneargument()
+ else
+ gobbleoneargument()
+ end
+ return
+ end
+ local bb = find(b,",")
+ if bb then
+ if hash[b][a] then
+ -- if settings_to_set(b)[a] then
+ setmacro("commalistelement",a)
+ gobbleoneargument()
+ return
+ end
+ end
+ setmacro("commalistelement","")
+ firstofoneargument()
+end
+
+implement {
+ name = "doifelsecommon",
+ actions = doifelsecommon,
+ arguments = { "string", "string" },
+}
+
+implement {
+ name = "doifcommon",
+ actions = doifcommon,
+ arguments = { "string", "string" },
+}
+
+implement {
+ name = "doifnotcommon",
+ actions = doifnotcommon,
+ arguments = { "string", "string" },
+}
+
+implement {
+ name = "doifelseinset",
+ actions = doifelseinset,
+ arguments = { "string", "string" },
+}
+
+implement {
+ name = "doifinset",
+ actions = doifinset,
+ arguments = { "string", "string" },
+}
+
+implement {
+ name = "doifnotinset",
+ actions = doifnotinset,
+ arguments = { "string", "string" },
+}
+
+-- implement {
+-- name = "stringcompare",
+-- arguments = { "string", "string" },
+-- actions = function(a,b)
+-- context((a == b and 0) or (a > b and 1) or -1)
+-- end
+-- }
+--
+-- implement {
+-- name = "doifelsestringafter",
+-- arguments = { "string", "string" },
+-- actions = function(a,b)
+-- ctx_doifelse((a == b and 0) or (a > b and 1) or -1)
+-- end
+-- }
+--
+-- implement {
+-- name = "doifelsestringbefore",
+-- arguments = { "string", "string" },
+-- actions = function(a,b)
+-- ctx_doifelse((a == b and 0) or (a < b and -1) or 1)
+-- end
+-- }
+
+-- implement { -- not faster than addtocommalist
+-- name = "additemtolist", -- unique
+-- arguments = { "string", "string" },
+-- actions = function(l,s)
+-- if l == "" or s == l then
+-- -- s = s
+-- elseif find("," .. l .. ",","," .. s .. ",") then
+-- s = l
+-- else
+-- s = l .. "," .. s
+-- end
+-- context(s)
+-- end
+-- }