From 8d8d528d2ad52599f11250cfc567fea4f37f2a8b Mon Sep 17 00:00:00 2001
From: Context Git Mirror Bot <phg42.2a@gmail.com>
Date: Tue, 12 Jan 2016 17:15:07 +0100
Subject: 2016-01-12 16:26:00

---
 tex/context/base/mkiv/util-sci.lua | 288 +++++++++++++++++++++++++++++++++++++
 1 file changed, 288 insertions(+)
 create mode 100644 tex/context/base/mkiv/util-sci.lua

(limited to 'tex/context/base/mkiv/util-sci.lua')

diff --git a/tex/context/base/mkiv/util-sci.lua b/tex/context/base/mkiv/util-sci.lua
new file mode 100644
index 000000000..43d873b63
--- /dev/null
+++ b/tex/context/base/mkiv/util-sci.lua
@@ -0,0 +1,288 @@
+if not modules then modules = { } end modules ['util-sci'] = {
+    version   = 1.001,
+    comment   = "companion to m-scite.mkiv",
+    author    = "Hans Hagen, PRAGMA-ADE, Hasselt NL",
+    copyright = "PRAGMA ADE / ConTeXt Development Team",
+    license   = "see context related readme files"
+}
+
+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
-- 
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