diff options
Diffstat (limited to 'Master/texmf-dist/tex/context/base/lxml-mis.lua')
| -rw-r--r-- | Master/texmf-dist/tex/context/base/lxml-mis.lua | 106 |
1 files changed, 106 insertions, 0 deletions
diff --git a/Master/texmf-dist/tex/context/base/lxml-mis.lua b/Master/texmf-dist/tex/context/base/lxml-mis.lua new file mode 100644 index 00000000000..a117b1af92a --- /dev/null +++ b/Master/texmf-dist/tex/context/base/lxml-mis.lua @@ -0,0 +1,106 @@ +if not modules then modules = { } end modules ['lxml-mis'] = { + version = 1.001, + comment = "this module is the basis for the lxml-* ones", + author = "Hans Hagen, PRAGMA-ADE, Hasselt NL", + copyright = "PRAGMA ADE / ConTeXt Development Team", + license = "see context related readme files" +} + +local concat = table.concat +local type, next, tonumber, tostring, setmetatable, loadstring = type, next, tonumber, tostring, setmetatable, loadstring +local format, gsub = string.format, string.gsub + +--[[ldx-- +<p>The following helper functions best belong to the <t>lmxl-ini</t> +module. Some are here because we need then in the <t>mk</t> +document and other manuals, others came up when playing with +this module. Since this module is also used in <l n='mtxrun'/> we've +put them here instead of loading mode modules there then needed.</p> +--ldx]]-- + +function xml.gsub(t,old,new) + local dt = t.dt + if dt then + for k=1,#dt do + local v = dt[k] + if type(v) == "string" then + dt[k] = gsub(v,old,new) + else + xml.gsub(v,old,new) + end + end + end +end + +function xml.strip_leading_spaces(dk,d,k) -- cosmetic, for manual + if d and k and d[k-1] and type(d[k-1]) == "string" then + local s = d[k-1]:match("\n(%s+)") + xml.gsub(dk,"\n"..string.rep(" ",#s),"\n") + end +end + +function xml.serialize_path(root,lpath,handle) + local dk, r, d, k = xml.first(root,lpath) + dk = xml.copy(dk) + xml.strip_leading_spaces(dk,d,k) + xml.serialize(dk,handle) +end + +--~ xml.escapes = { ['&'] = '&', ['<'] = '<', ['>'] = '>', ['"'] = '"' } +--~ xml.unescapes = { } for k,v in pairs(xml.escapes) do xml.unescapes[v] = k end + +--~ function xml.escaped (str) return (gsub(str,"(.)" , xml.escapes )) end +--~ function xml.unescaped(str) return (gsub(str,"(&.-;)", xml.unescapes)) end +--~ function xml.cleansed (str) return (gsub(str,"<.->" , '' )) end -- "%b<>" + +local P, S, R, C, V, Cc, Cs = lpeg.P, lpeg.S, lpeg.R, lpeg.C, lpeg.V, lpeg.Cc, lpeg.Cs + +-- 100 * 2500 * "oeps< oeps> oeps&" : gsub:lpeg|lpeg|lpeg +-- +-- 1021:0335:0287:0247 + +-- 10 * 1000 * "oeps< oeps> oeps& asfjhalskfjh alskfjh alskfjh alskfjh ;al J;LSFDJ" +-- +-- 1559:0257:0288:0190 (last one suggested by roberto) + +-- escaped = Cs((S("<&>") / xml.escapes + 1)^0) +-- escaped = Cs((S("<")/"<" + S(">")/">" + S("&")/"&" + 1)^0) +local normal = (1 - S("<&>"))^0 +local special = P("<")/"<" + P(">")/">" + P("&")/"&" +local escaped = Cs(normal * (special * normal)^0) + +-- 100 * 1000 * "oeps< oeps> oeps&" : gsub:lpeg == 0153:0280:0151:0080 (last one by roberto) + +-- unescaped = Cs((S("<")/"<" + S(">")/">" + S("&")/"&" + 1)^0) +-- unescaped = Cs((((P("&")/"") * (P("lt")/"<" + P("gt")/">" + P("amp")/"&") * (P(";")/"")) + 1)^0) +local normal = (1 - S"&")^0 +local special = P("<")/"<" + P(">")/">" + P("&")/"&" +local unescaped = Cs(normal * (special * normal)^0) + +-- 100 * 5000 * "oeps <oeps bla='oeps' foo='bar'> oeps </oeps> oeps " : gsub:lpeg == 623:501 msec (short tags, less difference) + +local cleansed = Cs(((P("<") * (1-P(">"))^0 * P(">"))/"" + 1)^0) + +xml.escaped_pattern = escaped +xml.unescaped_pattern = unescaped +xml.cleansed_pattern = cleansed + +function xml.escaped (str) return escaped :match(str) end +function xml.unescaped(str) return unescaped:match(str) end +function xml.cleansed (str) return cleansed :match(str) end + +function xml.join(t,separator,lastseparator) + if #t > 0 then + local result = { } + for k,v in pairs(t) do + result[k] = xml.tostring(v) + end + if lastseparator then + return concat(result,separator or "",1,#result-1) .. (lastseparator or "") .. result[#result] + else + return concat(result,separator) + end + else + return "" + end +end |