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-rw-r--r--tex/context/base/util-sci.lua280
1 files changed, 280 insertions, 0 deletions
diff --git a/tex/context/base/util-sci.lua b/tex/context/base/util-sci.lua
new file mode 100644
index 000000000..c3e24cd9d
--- /dev/null
+++ b/tex/context/base/util-sci.lua
@@ -0,0 +1,280 @@
+local gsub, sub, find = string.gsub, string.sub, string.find
+local concat = table.concat
+local formatters = string.formatters
+local lpegmatch = lpeg.match
+local setmetatableindex = table.setmetatableindex
+
+local scite = scite or { }
+utilities.scite = scite
+
+local report = logs.reporter("scite")
+
+local lexerroot = file.dirname(resolvers.find_file("scite-context-lexer.lua"))
+
+local knownlexers = {
+ tex = "tex", mkiv = "tex", mkvi = "tex", mkxi = "tex", mkix = "tex", mkii = "tex", cld = "tex",
+ lua = "lua", lfg = "lua", lus = "lua",
+ w = "web", ww = "web",
+ c = "cpp", h = "cpp", cpp = "cpp", hpp = "cpp", cxx = "cpp", hxx = "cpp",
+ xml = "xml", lmx = "xml", ctx = "xml", xsl = "xml", xsd = "xml", rlx = "xml", css = "xml", dtd = "xml",
+ bib = "bibtex",
+ rme = "txt",
+ -- todo: pat/hyp ori
+}
+
+lexer = nil -- main lexer, global (for the moment needed for themes)
+
+local function loadscitelexer()
+ if not lexer then
+ dir.push(lexerroot)
+ lexer = dofile("scite-context-lexer.lua")
+ dofile("themes/scite-context-theme.lua")
+ dir.pop()
+ end
+ return lexer
+end
+
+local loadedlexers = setmetatableindex(function(t,k)
+ local l = knownlexers[k] or k
+ dir.push(lexerroot)
+ loadscitelexer()
+ local v = lexer.load(formatters["scite-context-lexer-%s"](l))
+ dir.pop()
+ t[l] = v
+ t[k] = v
+ return v
+end)
+
+scite.loadedlexers = loadedlexers
+scite.knownlexers = knownlexers
+scite.loadscitelexer = loadscitelexer
+
+local f_fore_bold = formatters['.%s { display: inline ; font-weight: bold ; color: #%s%s%s ; }']
+local f_fore_none = formatters['.%s { display: inline ; font-weight: normal ; color: #%s%s%s ; }']
+local f_none_bold = formatters['.%s { display: inline ; font-weight: bold ; }']
+local f_none_none = formatters['.%s { display: inline ; font-weight: normal ; }']
+local f_div_class = formatters['<div class="%s">%s</div>']
+local f_linenumber = formatters['<div class="linenumber">%s</div>\n']
+local f_div_number = formatters['.linenumber { display: inline-block ; font-weight: normal ; width: %sem ; margin-right: 2em ; padding-right: .25em ; text-align: right ; background-color: #C7C7C7 ; }']
+
+local replacer_regular = lpeg.replacer {
+ ["<"] = "&lt;",
+ [">"] = "&gt;",
+ ["&"] = "&amp;",
+}
+
+local linenumber = 0
+local linenumbers = { }
+
+local replacer_numbered = lpeg.replacer {
+ ["<"] = "&lt;",
+ [">"] = "&gt;",
+ ["&"] = "&amp;",
+ [lpeg.patterns.newline] = function()
+ linenumber = linenumber + 1
+ linenumbers[linenumber] = f_linenumber(linenumber)
+ return "\n"
+ end,
+}
+
+local css = nil
+
+local function exportcsslexing()
+ if not css then
+ loadscitelexer()
+ local function black(f)
+ return (f[1] == f[2]) and (f[2] == f[3]) and (f[3] == '00')
+ end
+ local result, r = { }, 0
+ for k, v in table.sortedhash(lexer.context.styles) do
+ local bold = v.bold
+ local fore = v.fore
+ r = r + 1
+ if fore and not black(fore) then
+ if bold then
+ result[r] = f_fore_bold(k,fore[1],fore[2],fore[3])
+ else
+ result[r] = f_fore_none(k,fore[1],fore[2],fore[3])
+ end
+ else
+ if bold then
+ result[r] = f_none_bold(k)
+ else
+ result[r] = f_none_none(k)
+ end
+ end
+ end
+ css = concat(result,"\n")
+ end
+ return css
+end
+
+local function exportwhites()
+ return setmetatableindex(function(t,k)
+ local v = find(k,"white") and true or false
+ t[k] = v
+ return v
+ end)
+end
+
+local function exportstyled(lexer,text,numbered)
+ local result = lexer.lex(lexer,text,0)
+ local start = 1
+ local whites = exportwhites()
+ local buffer = { }
+ local b = 0
+ linenumber = 0
+ linenumbers = { }
+ local replacer = numbered and replacer_numbered or replacer_regular
+ local n = #result
+ for i=1,n,2 do
+ local ii = i + 1
+ local style = result[i]
+ local position = result[ii]
+ local txt = sub(text,start,position-1)
+ txt = lpegmatch(replacer,txt)
+ b = b + 1
+ if whites[style] then
+ buffer[b] = txt
+ else
+ buffer[b] = f_div_class(style,txt)
+ end
+ start = position
+ end
+ buffer = concat(buffer)
+ return buffer, concat(linenumbers)
+end
+
+local function exportcsslinenumber()
+ return f_div_number(#tostring(linenumber)/2+1)
+end
+
+local htmlfile = utilities.templates.replacer([[
+<?xml version="1.0"?>
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+ <html xmlns="http://www.w3.org/1999/xhtml">
+ <title>%title%</title>
+ <meta http-equiv="content-type" content="text/html; charset=UTF-8"/>
+ <style type="text/css"><!--
+%lexingstyles%
+%numberstyles%
+ --></style>
+ <body>
+ <table style="padding:0; margin:0;">
+ <tr>
+ <td><pre>%linenumbers%</pre></td>
+ <td><pre>%lexedcontent%</pre></td>
+ </tr>
+ </table>
+ </body>
+</html>
+]])
+
+function scite.tohtml(data,lexname,numbered,title)
+ local source, lines = exportstyled(loadedlexers[lexname],data or "",numbered)
+ return htmlfile {
+ lexedcontent = source, -- before numberstyles
+ lexingstyles = exportcsslexing(),
+ numberstyles = exportcsslinenumber(),
+ title = title or "context source file",
+ linenumbers = lines,
+ }
+end
+
+local function maketargetname(name)
+ if name then
+ return file.removesuffix(name) .. "-" .. file.suffix(name) .. ".html"
+ else
+ return "util-sci.html"
+ end
+end
+
+function scite.filetohtml(filename,lexname,targetname,numbered,title)
+ io.savedata(targetname or "util-sci.html",scite.tohtml(io.loaddata(filename),lexname or file.suffix(filename),numbered,title or filename))
+end
+
+function scite.css()
+ return exportcsslexing() .. "\n" .. exportcsslinenumber()
+end
+
+function scite.html(data,lexname,numbered)
+ return exportstyled(loadedlexers[lexname],data or "",numbered)
+end
+
+local f_tree_entry = formatters['<a href="%s" class="dir-entry">%s</a>']
+
+local htmlfile = utilities.templates.replacer([[
+<?xml version="1.0"?>
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+ <html xmlns="http://www.w3.org/1999/xhtml">
+ <title>%title%</title>
+ <meta http-equiv="content-type" content="text/html; charset=UTF-8"/>
+ <style type="text/css"><!--
+%styles%
+ --></style>
+ <body>
+ <pre>
+%dirlist%
+ </pre>
+ </body>
+</html>
+]])
+
+function scite.converttree(sourceroot,targetroot,numbered)
+ if lfs.isdir(sourceroot) then
+ statistics.starttiming()
+ local skipped = { }
+ local noffiles = 0
+ dir.makedirs(targetroot)
+ local function scan(sourceroot,targetroot,subpath)
+ local tree = { }
+ for name in lfs.dir(sourceroot) do
+ if name ~= "." and name ~= ".." then
+ local sourcename = file.join(sourceroot,name)
+ local targetname = file.join(targetroot,name)
+ local mode = lfs.attributes(sourcename,'mode')
+ local path = subpath and file.join(subpath,name) or name
+ if mode == 'file' then
+ local filetype = file.suffix(sourcename)
+ local basename = file.basename(name)
+ local targetname = maketargetname(targetname)
+ local fullname = file.join(path,name)
+ if knownlexers[filetype] then
+ report("converting file %a to %a",sourcename,targetname)
+ scite.filetohtml(sourcename,nil,targetname,numbered,fullname)
+ noffiles = noffiles + 1
+ tree[#tree+1] = f_tree_entry(file.basename(targetname),basename)
+ else
+ skipped[filetype] = true
+ report("no lexer for %a",sourcename)
+ end
+ else
+ dir.makedirs(targetname)
+ scan(sourcename,targetname,path)
+ tree[#tree+1] = f_tree_entry(file.join(name,"files.html"),name)
+ end
+ end
+ end
+ report("saving tree in %a",targetroot)
+ local htmldata = htmlfile {
+ dirlist = concat(tree,"\n"),
+ styles = "",
+ title = path or "context dir listing",
+ }
+ io.savedata(file.join(targetroot,"files.html"),htmldata)
+ end
+ scan(sourceroot,targetroot)
+ if next(skipped) then
+ report("skipped filetypes: %a",table.concat(table.sortedkeys(skipped)," "))
+ end
+ statistics.stoptiming()
+ report("conversion time for %s files: %s",noffiles,statistics.elapsedtime())
+ end
+end
+
+-- scite.filetohtml("strc-sec.mkiv",nil,"e:/tmp/util-sci.html",true)
+-- scite.filetohtml("syst-aux.mkiv",nil,"e:/tmp/util-sci.html",true)
+
+-- scite.converttree("t:/texmf/tex/context","e:/tmp/html/context",true)
+
+return scite