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-rw-r--r--luaextra-aux.lua257
1 files changed, 0 insertions, 257 deletions
diff --git a/luaextra-aux.lua b/luaextra-aux.lua
deleted file mode 100644
index 7950a03..0000000
--- a/luaextra-aux.lua
+++ /dev/null
@@ -1,257 +0,0 @@
-if not modules then modules = { } end modules ['l-aux'] = {
- version = 1.001,
- comment = "companion to luat-lib.mkiv",
- author = "Hans Hagen, PRAGMA-ADE, Hasselt NL",
- copyright = "PRAGMA ADE / ConTeXt Development Team",
- license = "see context related readme files"
-}
-
--- for inline, no store split : for s in string.gmatch(str,",* *([^,]+)") do .. end
-
-aux = aux or { }
-
-local concat, format, gmatch = table.concat, string.format, string.gmatch
-local tostring, type = tostring, type
-local lpegmatch = lpeg.match
-
-local P, R, V = lpeg.P, lpeg.R, lpeg.V
-
-local escape, left, right = P("\\"), P('{'), P('}')
-
-lpeg.patterns.balanced = P {
- [1] = ((escape * (left+right)) + (1 - (left+right)) + V(2))^0,
- [2] = left * V(1) * right
-}
-
-local space = lpeg.P(' ')
-local equal = lpeg.P("=")
-local comma = lpeg.P(",")
-local lbrace = lpeg.P("{")
-local rbrace = lpeg.P("}")
-local nobrace = 1 - (lbrace+rbrace)
-local nested = lpeg.P { lbrace * (nobrace + lpeg.V(1))^0 * rbrace }
-local spaces = space^0
-
-local value = lpeg.P(lbrace * lpeg.C((nobrace + nested)^0) * rbrace) + lpeg.C((nested + (1-comma))^0)
-
-local key = lpeg.C((1-equal-comma)^1)
-local pattern_a = (space+comma)^0 * (key * equal * value + key * lpeg.C(""))
-local pattern_c = (space+comma)^0 * (key * equal * value)
-
-local key = lpeg.C((1-space-equal-comma)^1)
-local pattern_b = spaces * comma^0 * spaces * (key * ((spaces * equal * spaces * value) + lpeg.C("")))
-
--- "a=1, b=2, c=3, d={a{b,c}d}, e=12345, f=xx{a{b,c}d}xx, g={}" : outer {} removes, leading spaces ignored
-
-local hash = { }
-
-local function set(key,value) -- using Carg is slower here
- hash[key] = value
-end
-
-local pattern_a_s = (pattern_a/set)^1
-local pattern_b_s = (pattern_b/set)^1
-local pattern_c_s = (pattern_c/set)^1
-
-aux.settings_to_hash_pattern_a = pattern_a_s
-aux.settings_to_hash_pattern_b = pattern_b_s
-aux.settings_to_hash_pattern_c = pattern_c_s
-
-function aux.make_settings_to_hash_pattern(set,how)
- if how == "strict" then
- return (pattern_c/set)^1
- elseif how == "tolerant" then
- return (pattern_b/set)^1
- else
- return (pattern_a/set)^1
- end
-end
-
-function aux.settings_to_hash(str,existing)
- if str and str ~= "" then
- hash = existing or { }
- if moretolerant then
- lpegmatch(pattern_b_s,str)
- else
- lpegmatch(pattern_a_s,str)
- end
- return hash
- else
- return { }
- end
-end
-
-function aux.settings_to_hash_tolerant(str,existing)
- if str and str ~= "" then
- hash = existing or { }
- lpegmatch(pattern_b_s,str)
- return hash
- else
- return { }
- end
-end
-
-function aux.settings_to_hash_strict(str,existing)
- if str and str ~= "" then
- hash = existing or { }
- lpegmatch(pattern_c_s,str)
- return next(hash) and hash
- else
- return nil
- end
-end
-
-local separator = comma * space^0
-local value = lpeg.P(lbrace * lpeg.C((nobrace + nested)^0) * rbrace) + lpeg.C((nested + (1-comma))^0)
-local pattern = lpeg.Ct(value*(separator*value)^0)
-
--- "aap, {noot}, mies" : outer {} removes, leading spaces ignored
-
-aux.settings_to_array_pattern = pattern
-
--- we could use a weak table as cache
-
-function aux.settings_to_array(str)
- if not str or str == "" then
- return { }
- else
- return lpegmatch(pattern,str)
- end
-end
-
-local function set(t,v)
- t[#t+1] = v
-end
-
-local value = lpeg.P(lpeg.Carg(1)*value) / set
-local pattern = value*(separator*value)^0 * lpeg.Carg(1)
-
-function aux.add_settings_to_array(t,str)
- return lpegmatch(pattern,str,nil,t)
-end
-
-function aux.hash_to_string(h,separator,yes,no,strict,omit)
- if h then
- local t, s = { }, table.sortedkeys(h)
- omit = omit and table.tohash(omit)
- for i=1,#s do
- local key = s[i]
- if not omit or not omit[key] then
- local value = h[key]
- if type(value) == "boolean" then
- if yes and no then
- if value then
- t[#t+1] = key .. '=' .. yes
- elseif not strict then
- t[#t+1] = key .. '=' .. no
- end
- elseif value or not strict then
- t[#t+1] = key .. '=' .. tostring(value)
- end
- else
- t[#t+1] = key .. '=' .. value
- end
- end
- end
- return concat(t,separator or ",")
- else
- return ""
- end
-end
-
-function aux.array_to_string(a,separator)
- if a then
- return concat(a,separator or ",")
- else
- return ""
- end
-end
-
-function aux.settings_to_set(str,t)
- t = t or { }
- for s in gmatch(str,"%s*([^,]+)") do
- t[s] = true
- end
- return t
-end
-
-local value = lbrace * lpeg.C((nobrace + nested)^0) * rbrace
-local pattern = lpeg.Ct((space + value)^0)
-
-function aux.arguments_to_table(str)
- return lpegmatch(pattern,str)
-end
-
--- temporary here
-
-function aux.getparameters(self,class,parentclass,settings)
- local sc = self[class]
- if not sc then
- sc = table.clone(self[parent])
- self[class] = sc
- end
- aux.settings_to_hash(settings,sc)
-end
-
--- temporary here
-
-local digit = lpeg.R("09")
-local period = lpeg.P(".")
-local zero = lpeg.P("0")
-local trailingzeros = zero^0 * -digit -- suggested by Roberto R
-local case_1 = period * trailingzeros / ""
-local case_2 = period * (digit - trailingzeros)^1 * (trailingzeros / "")
-local number = digit^1 * (case_1 + case_2)
-local stripper = lpeg.Cs((number + 1)^0)
-
---~ local sample = "bla 11.00 bla 11 bla 0.1100 bla 1.00100 bla 0.00 bla 0.001 bla 1.1100 bla 0.100100100 bla 0.00100100100"
---~ collectgarbage("collect")
---~ str = string.rep(sample,10000)
---~ local ts = os.clock()
---~ lpegmatch(stripper,str)
---~ print(#str, os.clock()-ts, lpegmatch(stripper,sample))
-
-lpeg.patterns.strip_zeros = stripper
-
-function aux.strip_zeros(str)
- return lpegmatch(stripper,str)
-end
-
-function aux.definetable(target) -- defines undefined tables
- local composed, t = nil, { }
- for name in gmatch(target,"([^%.]+)") do
- if composed then
- composed = composed .. "." .. name
- else
- composed = name
- end
- t[#t+1] = format("%s = %s or { }",composed,composed)
- end
- return concat(t,"\n")
-end
-
-function aux.accesstable(target)
- local t = _G
- for name in gmatch(target,"([^%.]+)") do
- t = t[name]
- end
- return t
-end
-
--- as we use this a lot ...
-
---~ function aux.cachefunction(action,weak)
---~ local cache = { }
---~ if weak then
---~ setmetatable(cache, { __mode = "kv" } )
---~ end
---~ local function reminder(str)
---~ local found = cache[str]
---~ if not found then
---~ found = action(str)
---~ cache[str] = found
---~ end
---~ return found
---~ end
---~ return reminder, cache
---~ end