diff options
Diffstat (limited to 'tex/context/base/util-str.lua')
| -rw-r--r-- | tex/context/base/util-str.lua | 173 |
1 files changed, 40 insertions, 133 deletions
diff --git a/tex/context/base/util-str.lua b/tex/context/base/util-str.lua index 4ecaed7d3..af8b1651e 100644 --- a/tex/context/base/util-str.lua +++ b/tex/context/base/util-str.lua @@ -20,24 +20,8 @@ local utfchar, utfbyte = utf.char, utf.byte ----- loadstripped = utilities.lua.loadstripped ----- setmetatableindex = table.setmetatableindex -local loadstripped = nil - -if _LUAVERSION < 5.2 then - - loadstripped = function(str,shortcuts) - return load(str) - end - -else - - loadstripped = function(str,shortcuts) - if shortcuts then - return load(dump(load(str),true),nil,nil,shortcuts) - else - return load(dump(load(str),true)) - end - end - +local loadstripped = _LUAVERSION < 5.2 and load or function(str) + return load(dump(load(str),true)) -- it only makes sense in luajit and luatex where we have a stipped load end -- todo: make a special namespace for the formatter @@ -307,67 +291,33 @@ function number.sparseexponent(f,n) return tostring(n) end +local preamble = [[ +local type = type +local tostring = tostring +local tonumber = tonumber +local format = string.format +local concat = table.concat +local signed = number.signed +local points = number.points +local basepoints = number.basepoints +local utfchar = utf.char +local utfbyte = utf.byte +local lpegmatch = lpeg.match +local nspaces = string.nspaces +local tracedchar = string.tracedchar +local autosingle = string.autosingle +local autodouble = string.autodouble +local sequenced = table.sequenced +local formattednumber = number.formatted +local sparseexponent = number.sparseexponent +]] + local template = [[ %s %s return function(%s) return %s end ]] -local preamble, environment = "", { } - -if _LUAVERSION < 5.2 then - - preamble = [[ -local lpeg=lpeg -local type=type -local tostring=tostring -local tonumber=tonumber -local format=string.format -local concat=table.concat -local signed=number.signed -local points=number.points -local basepoints= number.basepoints -local utfchar=utf.char -local utfbyte=utf.byte -local lpegmatch=lpeg.match -local nspaces=string.nspaces -local tracedchar=string.tracedchar -local autosingle=string.autosingle -local autodouble=string.autodouble -local sequenced=table.sequenced -local formattednumber=number.formatted -local sparseexponent=number.sparseexponent - ]] - -else - - environment = { - global = global or _G, - lpeg = lpeg, - type = type, - tostring = tostring, - tonumber = tonumber, - format = string.format, - concat = table.concat, - signed = number.signed, - points = number.points, - basepoints = number.basepoints, - utfchar = utf.char, - utfbyte = utf.byte, - lpegmatch = lpeg.match, - nspaces = string.nspaces, - tracedchar = string.tracedchar, - autosingle = string.autosingle, - autodouble = string.autodouble, - sequenced = table.sequenced, - formattednumber = number.formatted, - sparseexponent = number.sparseexponent, - } - -end - --- -- -- - local arguments = { "a1" } -- faster than previously used (select(n,...)) setmetatable(arguments, { __index = @@ -790,37 +740,28 @@ local builder = Cs { "start", -- we can be clever and only alias what is needed --- local direct = Cs ( --- P("%")/"" --- * Cc([[local format = string.format return function(str) return format("%]]) --- * (S("+- .") + R("09"))^0 --- * S("sqidfgGeExXo") --- * Cc([[",str) end]]) --- * P(-1) --- ) - local direct = Cs ( - P("%") - * (S("+- .") + R("09"))^0 - * S("sqidfgGeExXo") - * P(-1) / [[local format = string.format return function(str) return format("%0",str) end]] -) + P("%")/"" + * Cc([[local format = string.format return function(str) return format("%]]) + * (S("+- .") + R("09"))^0 + * S("sqidfgGeExXo") + * Cc([[",str) end]]) + * P(-1) + ) local function make(t,str) local f local p local p = lpegmatch(direct,str) if p then - -- f = loadstripped(p)() - -- print("builder 1 >",p) f = loadstripped(p)() else n = 0 p = lpegmatch(builder,str,1,"..",t._extensions_) -- after this we know n if n > 0 then p = format(template,preamble,t._preamble_,arguments[n],p) - -- print("builder 2 >",p) - f = loadstripped(p,t._environment_)() -- t._environment is not populated (was experiment) +-- print("builder>",p) + f = loadstripped(p)() else f = function() return str end end @@ -875,26 +816,10 @@ strings.formatters = { } -- table (metatable) in which case we could better keep a count and -- clear that table when a threshold is reached -if _LUAVERSION < 5.2 then - - function strings.formatters.new() - local t = { _extensions_ = { }, _preamble_ = preamble, _environment_ = { }, _type_ = "formatter" } - setmetatable(t, { __index = make, __call = use }) - return t - end - -else - - function strings.formatters.new() - local e = { } -- better make a copy as we can overload - for k, v in next, environment do - e[k] = v - end - local t = { _extensions_ = { }, _preamble_ = "", _environment_ = e, _type_ = "formatter" } - setmetatable(t, { __index = make, __call = use }) - return t - end - +function strings.formatters.new() + local t = { _extensions_ = { }, _preamble_ = "", _type_ = "formatter" } + setmetatable(t, { __index = make, __call = use }) + return t end -- function strings.formatters.new() @@ -913,12 +838,8 @@ string.formatter = function(str,...) return formatters[str](...) end -- someti local function add(t,name,template,preamble) if type(t) == "table" and t._type_ == "formatter" then t._extensions_[name] = template or "%s" - if type(preamble) == "string" then + if preamble then t._preamble_ = preamble .. "\n" .. t._preamble_ -- so no overload ! - elseif type(preamble) == "table" then - for k, v in next, preamble do - t._environment_[k] = v - end end end end @@ -935,23 +856,9 @@ patterns.luaquoted = Cs(Cc('"') * ((1-S('"\n'))^1 + P('"')/'\\"' + P('\n')/'\\n" -- escaping by lpeg is faster for strings without quotes, slower on a string with quotes, but -- faster again when other q-escapables are found (the ones we don't need to escape) --- add(formatters,"xml", [[lpegmatch(xmlescape,%s)]],[[local xmlescape = lpeg.patterns.xmlescape]]) --- add(formatters,"tex", [[lpegmatch(texescape,%s)]],[[local texescape = lpeg.patterns.texescape]]) --- add(formatters,"lua", [[lpegmatch(luaescape,%s)]],[[local luaescape = lpeg.patterns.luaescape]]) - -if _LUAVERSION < 5.2 then - - add(formatters,"xml",[[lpegmatch(xmlescape,%s)]],"local xmlescape = lpeg.patterns.xmlescape") - add(formatters,"tex",[[lpegmatch(texescape,%s)]],"local texescape = lpeg.patterns.texescape") - add(formatters,"lua",[[lpegmatch(luaescape,%s)]],"local luaescape = lpeg.patterns.luaescape") - -else - - add(formatters,"xml",[[lpegmatch(xmlescape,%s)]],{ xmlescape = lpeg.patterns.xmlescape }) - add(formatters,"tex",[[lpegmatch(texescape,%s)]],{ texescape = lpeg.patterns.texescape }) - add(formatters,"lua",[[lpegmatch(luaescape,%s)]],{ luaescape = lpeg.patterns.luaescape }) - -end +add(formatters,"xml", [[lpegmatch(xmlescape,%s)]],[[local xmlescape = lpeg.patterns.xmlescape]]) +add(formatters,"tex", [[lpegmatch(texescape,%s)]],[[local texescape = lpeg.patterns.texescape]]) +add(formatters,"lua", [[lpegmatch(luaescape,%s)]],[[local luaescape = lpeg.patterns.luaescape]]) -- -- yes or no: -- |