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authorKarl Berry <karl@freefriends.org>2012-02-28 00:34:17 +0000
committerKarl Berry <karl@freefriends.org>2012-02-28 00:34:17 +0000
commit3896a3ce963e514325035018b02583376d23aa6c (patch)
treeb846e8081e3808d61fe8cc83f7c52da20cd1b473
parent1c9cfa88a38e47a75fd3a9d1cb19d81330927028 (diff)
lua-visual-debug generic (24feb12)
git-svn-id: svn://tug.org/texlive/trunk@25517 c570f23f-e606-0410-a88d-b1316a301751
-rw-r--r--Master/texmf-dist/doc/lualatex/lua-visual-debug/lvdebug-doc.pdfbin99300 -> 0 bytes
-rw-r--r--Master/texmf-dist/doc/lualatex/lua-visual-debug/lvdebug-doc.tex48
-rw-r--r--Master/texmf-dist/doc/lualatex/lua-visual-debug/lvdebug-sample.pdfbin46233 -> 0 bytes
-rw-r--r--Master/texmf-dist/doc/luatex/lua-visual-debug/README (renamed from Master/texmf-dist/doc/lualatex/lua-visual-debug/README)16
-rw-r--r--Master/texmf-dist/doc/luatex/lua-visual-debug/lvdebug-doc.pdfbin0 -> 355891 bytes
-rw-r--r--Master/texmf-dist/doc/luatex/lua-visual-debug/lvdebug-doc.tex49
-rw-r--r--Master/texmf-dist/doc/luatex/lua-visual-debug/sample-plain.pdfbin0 -> 49370 bytes
-rw-r--r--Master/texmf-dist/doc/luatex/lua-visual-debug/sample-plain.tex16
-rw-r--r--Master/texmf-dist/doc/luatex/lua-visual-debug/sample.pdfbin0 -> 99566 bytes
-rw-r--r--Master/texmf-dist/doc/luatex/lua-visual-debug/sample.tex (renamed from Master/texmf-dist/doc/lualatex/lua-visual-debug/sample.tex)22
-rw-r--r--Master/texmf-dist/tex/lualatex/lua-visual-debug/lua-visual-debug.lua91
-rw-r--r--Master/texmf-dist/tex/lualatex/lua-visual-debug/lua-visual-debug.sty9
-rw-r--r--Master/texmf-dist/tex/luatex/lua-visual-debug/lua-visual-debug.lua132
-rw-r--r--Master/texmf-dist/tex/luatex/lua-visual-debug/lua-visual-debug.sty35
14 files changed, 259 insertions, 159 deletions
diff --git a/Master/texmf-dist/doc/lualatex/lua-visual-debug/lvdebug-doc.pdf b/Master/texmf-dist/doc/lualatex/lua-visual-debug/lvdebug-doc.pdf
deleted file mode 100644
index 8991337eb24..00000000000
--- a/Master/texmf-dist/doc/lualatex/lua-visual-debug/lvdebug-doc.pdf
+++ /dev/null
Binary files differ
diff --git a/Master/texmf-dist/doc/lualatex/lua-visual-debug/lvdebug-doc.tex b/Master/texmf-dist/doc/lualatex/lua-visual-debug/lvdebug-doc.tex
deleted file mode 100644
index f57fb7c539d..00000000000
--- a/Master/texmf-dist/doc/lualatex/lua-visual-debug/lvdebug-doc.tex
+++ /dev/null
@@ -1,48 +0,0 @@
-\documentclass{article}
-\usepackage{graphics}
-\newcommand\LuaLaTeX{Lua\LaTeX}
-
-\begin{document}
-\section{Documentation}
-
-When you load the package \texttt{lua-visual-debug} in your \LuaLaTeX\ document, \LaTeX\ will highlight boxes, penalties, glues and kerns in the PDF. This package requires you to process the document with \LuaLaTeX.
-
-\begin{verbatim}
-\documentclass{article}
-\usepackage{lua-visual-debug}
-
-\listfiles
-\setlength\textwidth{300pt}
-\setlength\textheight{10cm}
-
-\begin{document}
-
-A wonderful serenity has taken possession of my entire soul, like these sweet
-mornings of spring which I enjoy with my whole heart. I am alone, and feel the
-charm of existence in this spot, which was created for the bliss of souls like
-mine. I am so happy, my dear friend, so absorbed in the exquisite sense of mere
-tranquil existence, that I neglect my talents.
-
-
-\bgroup\fontsize{30}{34}\selectfont
-\centerline{\TeX}
-\egroup
-
-\vbox{\strut Hello}\kern .5cm\vbox{\strut World}
-
-\[ e=mc^2 \]
-
-\includegraphics[width=4cm]{cow}
-\end{document}
-\end{verbatim}
-
-yields \vspace{5mm}
-
-\noindent \includegraphics{lvdebug-sample.pdf}
-
-\section{Copying}
-
-Copyright 2012 Patrick Gundlach (patrick@gundla.ch), licensed under the MIT license. See the Lua file for details.
-
-
-\end{document}
diff --git a/Master/texmf-dist/doc/lualatex/lua-visual-debug/lvdebug-sample.pdf b/Master/texmf-dist/doc/lualatex/lua-visual-debug/lvdebug-sample.pdf
deleted file mode 100644
index 3c011d86e48..00000000000
--- a/Master/texmf-dist/doc/lualatex/lua-visual-debug/lvdebug-sample.pdf
+++ /dev/null
Binary files differ
diff --git a/Master/texmf-dist/doc/lualatex/lua-visual-debug/README b/Master/texmf-dist/doc/luatex/lua-visual-debug/README
index ffec4835ed8..94fd2312ec9 100644
--- a/Master/texmf-dist/doc/lualatex/lua-visual-debug/README
+++ b/Master/texmf-dist/doc/luatex/lua-visual-debug/README
@@ -1,12 +1,22 @@
-The LaTeX package 'lua-visual-debug' shows boxes, glues, kerns and
+The LuaTeX package 'lua-visual-debug' shows boxes, glues, kerns and
penalties in the PDF output.
Usage:
+LaTeX:
+
\usepackage{lua-visual-debug}
-Requirements: The package only works with LuaLaTeX.
- With other engines, a warning message will be shown.
+or (plain)
+
+\input lua-visual-debug
+
+
+
+Requirements: The package has only been tested with LuaTeX and
+ the formats plain and LaTeX. Other formats might work as well,
+ but other engines only show a warning message.
+
Copyright 2012 Patrick Gundlach (patrick@gundla.ch)
Public repository: https://github.com/pgundlach/lvdebug
diff --git a/Master/texmf-dist/doc/luatex/lua-visual-debug/lvdebug-doc.pdf b/Master/texmf-dist/doc/luatex/lua-visual-debug/lvdebug-doc.pdf
new file mode 100644
index 00000000000..62aa83bdfa1
--- /dev/null
+++ b/Master/texmf-dist/doc/luatex/lua-visual-debug/lvdebug-doc.pdf
Binary files differ
diff --git a/Master/texmf-dist/doc/luatex/lua-visual-debug/lvdebug-doc.tex b/Master/texmf-dist/doc/luatex/lua-visual-debug/lvdebug-doc.tex
new file mode 100644
index 00000000000..3655b96c1d1
--- /dev/null
+++ b/Master/texmf-dist/doc/luatex/lua-visual-debug/lvdebug-doc.tex
@@ -0,0 +1,49 @@
+\documentclass{article}
+\usepackage{graphicx,listings,lmodern}
+\newcommand\LuaLaTeX{Lua\LaTeX}
+
+\newcommand*\pgsmall{\fontsize{8.5}{8.7}\selectfont\ttfamily}
+\lstset{basicstyle=\pgsmall,
+ basewidth=0.55em,
+ columns=fullflexible,
+ breakautoindent=true,
+ breaklines=true,
+ prebreak=,
+ postbreak=\mbox{$\hookrightarrow$},
+}
+
+\begin{document}
+\title{The lua-visual-debug package (V0.2)}
+\author{Patrick Gundlach}
+% \address{patrick@gundla.ch}
+\maketitle
+\section{About}
+
+This package aids debugging your \TeX\ and \LaTeX\ document by drawing rectangles around boxes and rules where glue is inserted. Other items are marked as well: kerns, hyphenation points and penalties.
+
+\section{How to use}
+
+When you load the package \texttt{lua-visual-debug} in your \LuaLaTeX\ document (or use \verb|\input lua-visual-debug.sty| in plain \TeX), Lua\TeX\ will highlight boxes, penalties, glues and kerns in the PDF. This package requires you to process the document with \LaTeX\ (plain and LaTeX formats).
+
+\section{A \LaTeX\ example}
+\lstinputlisting[language=tex]{sample.tex}
+
+\noindent yields \vspace{5mm}
+
+\noindent \includegraphics[width=\textwidth]{sample-crop.pdf}
+
+\section{A plain \TeX\ example}
+
+\lstinputlisting[language=tex]{sample-plain.tex}
+
+\noindent yields \vspace{5mm}
+
+\noindent \includegraphics{sample-plain-crop.pdf}
+
+
+\section{Copying}
+
+Copyright 2012 Patrick Gundlach (patrick@gundla.ch), licensed under the MIT license. See the Lua file for details.
+
+
+\end{document}
diff --git a/Master/texmf-dist/doc/luatex/lua-visual-debug/sample-plain.pdf b/Master/texmf-dist/doc/luatex/lua-visual-debug/sample-plain.pdf
new file mode 100644
index 00000000000..f77d7bf010c
--- /dev/null
+++ b/Master/texmf-dist/doc/luatex/lua-visual-debug/sample-plain.pdf
Binary files differ
diff --git a/Master/texmf-dist/doc/luatex/lua-visual-debug/sample-plain.tex b/Master/texmf-dist/doc/luatex/lua-visual-debug/sample-plain.tex
new file mode 100644
index 00000000000..da1e423238f
--- /dev/null
+++ b/Master/texmf-dist/doc/luatex/lua-visual-debug/sample-plain.tex
@@ -0,0 +1,16 @@
+\input lua-visual-debug.sty
+
+\hsize 3in \vsize 3in
+\centerline{A centered line with \TeX}
+
+\vskip .5in
+
+A wonderful serenity has taken possession of my entire soul, like these sweet
+mornings of spring which I enjoy with my whole heart. I am alone, and feel
+the charm of existence in this spot, which was created for the bliss of souls
+like mine. I am so happy, my dear friend, so absorbed in the exquisite sense
+of mere tranquil existence, that I neglect my talents.
+
+$$\int_e^x=mc^2$$
+
+\bye
diff --git a/Master/texmf-dist/doc/luatex/lua-visual-debug/sample.pdf b/Master/texmf-dist/doc/luatex/lua-visual-debug/sample.pdf
new file mode 100644
index 00000000000..088303edca9
--- /dev/null
+++ b/Master/texmf-dist/doc/luatex/lua-visual-debug/sample.pdf
Binary files differ
diff --git a/Master/texmf-dist/doc/lualatex/lua-visual-debug/sample.tex b/Master/texmf-dist/doc/luatex/lua-visual-debug/sample.tex
index 44be4b744ad..7a0c75e4f36 100644
--- a/Master/texmf-dist/doc/lualatex/lua-visual-debug/sample.tex
+++ b/Master/texmf-dist/doc/luatex/lua-visual-debug/sample.tex
@@ -1,18 +1,25 @@
\documentclass{article}
\usepackage{lua-visual-debug}
-\listfiles
+\usepackage{lmodern}
\setlength\textwidth{300pt}
\setlength\textheight{10cm}
\begin{document}
-A wonderful serenity has taken possession of my entire soul, like these sweet
-mornings of spring which I enjoy with my whole heart. I am alone, and feel the
-charm of existence in this spot, which was created for the bliss of souls like
-mine. I am so happy, my dear friend, so absorbed in the exquisite sense of mere
-tranquil existence, that I neglect my talents.
+\section{A short story}
+A wonderful serenity has taken possession of my entire soul, like these sweet
+mornings of spring which I enjoy with my whole heart. I am alone, and feel
+the charm of existence in this spot, which was created for the bliss of souls
+like mine. I am so happy, my dear friend, so absorbed in the exquisite sense
+of mere tranquil existence, that I neglect my talents.
+
+\begin{itemize}
+ \item one
+ \item two
+ \item three
+\end{itemize}
\bgroup\fontsize{30}{34}\selectfont
\centerline{\TeX}
@@ -20,7 +27,6 @@ tranquil existence, that I neglect my talents.
\vbox{\strut Hello}\kern .5cm\vbox{\strut World}
-\[ e=mc^2 \]
+\[ \int_e^x=mc^2 \]
-%\includegraphics[width=4cm]{cow}
\end{document}
diff --git a/Master/texmf-dist/tex/lualatex/lua-visual-debug/lua-visual-debug.lua b/Master/texmf-dist/tex/lualatex/lua-visual-debug/lua-visual-debug.lua
deleted file mode 100644
index 1e37af791c0..00000000000
--- a/Master/texmf-dist/tex/lualatex/lua-visual-debug/lua-visual-debug.lua
+++ /dev/null
@@ -1,91 +0,0 @@
--- Copyright 2012 Patrick Gundlach, patrick@gundla.ch
--- released under the "MIT license" (see footer of this file)
--- Public repository: https://github.com/pgundlach/lvdebug (issues/pull requests,...)
-
-module(...,package.seeall)
-
-local factor = 65782 -- big points vs. TeX points
-local rule_width = 0.1
-
-
-local function draw_pagebox(head,parent)
- while head do
- if head.id == 0 or head.id == 1 then -- hbox / vbox
-
- local wd = head.width / factor - rule_width
- local ht = (head.height + head.depth) / factor - rule_width
- local dp = head.depth / factor - rule_width / 2
-
- draw_pagebox(head.list,head)
- local wbox = node.new("whatsit","pdf_literal")
- if head.id == 0 then -- hbox
- wbox.data = string.format("q 0.5 G %g w %g %g %g %g re s Q", rule_width, -rule_width / 2, -dp, wd, ht)
- else
- wbox.data = string.format("q 0.1 G %g w %g %g %g %g re s Q", rule_width, -rule_width / 2, 0, wd, -ht)
- end
- wbox.mode = 0
-
- head.list = node.insert_before(head.list,head.list,wbox)
-
- elseif head.id == 10 then -- glue
- local wd = head.spec.width
- local color = "0.5 G"
- if parent.glue_sign == 1 and parent.glue_order == head.spec.stretch_order then
- wd = wd + parent.glue_set * head.spec.stretch
- color = "0 0 1 RG"
- elseif parent.glue_sign == 2 and parent.glue_order == head.spec.shrink_order then
- wd = wd - parent.glue_set * head.spec.shrink
- color = "1 0 1 RG"
- end
-
- local wbox = node.new("whatsit","pdf_literal")
- if parent.id == 0 then --hlist
- wbox.data = string.format("q %s [0.2] 0 d 0.5 w 0 0 m %g 0 l s Q",color,wd / factor)
- else -- vlist
- wbox.data = string.format("q 0.1 G 0.1 w -0.5 0 m 0.5 0 l -0.5 %g m 0.5 %g l s [0.2] 0 d 0.5 w 0.25 0 m 0.25 %g l s Q",-wd / factor,-wd / factor,-wd / factor)
- end
- wbox.mode = 0
-
- node.insert_before(parent.list,head,wbox)
- elseif head.id == 11 then -- kern
- local wbox = node.new("whatsit","pdf_literal")
- local color = "1 1 0 rg"
- if head.kern < 0 then color = "1 0 0 rg" end
- if parent.id == 0 then --hlist
- wbox.data = string.format("q %s 0 w 0 0 %g 1 re B Q",color, head.kern / factor )
- else
- wbox.data = string.format("q %s 0 w 0 0 1 %g re B Q",color, -head.kern / factor )
- end
- node.insert_before(parent.list,head,wbox)
- elseif head.id == 12 then -- penalty
- local color = "1 g"
- local wbox = node.new("whatsit","pdf_literal")
- if head.penalty < 10000 then
- color = string.format("%d g", 1 - head.penalty / 10000)
- end
- wbox.data = string.format("q %s 0 w 0 0 1 1 re B Q",color)
- node.insert_before(parent.list,head,wbox)
- else
- -- ignore
- end
- head = head.next
- end
-end
-
-local function draw()
- draw_pagebox(tex.box["AtBeginShipoutBox"].list,tex.box["AtBeginShipoutBox"])
-end
-
-return { draw = draw }
-
--- Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the
--- "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge,
--- publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do
--- so, subject to the following conditions:
---
--- The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
---
--- THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
--- MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE
--- FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
--- WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
diff --git a/Master/texmf-dist/tex/lualatex/lua-visual-debug/lua-visual-debug.sty b/Master/texmf-dist/tex/lualatex/lua-visual-debug/lua-visual-debug.sty
deleted file mode 100644
index 95671861a2e..00000000000
--- a/Master/texmf-dist/tex/lualatex/lua-visual-debug/lua-visual-debug.sty
+++ /dev/null
@@ -1,9 +0,0 @@
-\ProvidesPackage{lua-visual-debug}[2012/02/22 v0.1 Visual debugging in LuaLaTeX (PGU)]
-\RequirePackage{ifluatex}
-\ifluatex
- \RequirePackage{luatexbase,atbegshi}
- \directlua{ lvdebug = require("lua-visual-debug") }
- \AtBeginShipout {\directlua{lvdebug.draw()}}
-\else
- \PackageWarning{lua-visual-debug}{You are using this package without LuaTeX. This is not supported, so you don't get any visual debugging.}
-\fi
diff --git a/Master/texmf-dist/tex/luatex/lua-visual-debug/lua-visual-debug.lua b/Master/texmf-dist/tex/luatex/lua-visual-debug/lua-visual-debug.lua
new file mode 100644
index 00000000000..e4aae142737
--- /dev/null
+++ b/Master/texmf-dist/tex/luatex/lua-visual-debug/lua-visual-debug.lua
@@ -0,0 +1,132 @@
+-- Copyright 2012 Patrick Gundlach, patrick@gundla.ch
+-- Public repository: https://github.com/pgundlach/lvdebug (issues/pull requests,...)
+
+-- Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the
+-- "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge,
+-- publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do
+-- so, subject to the following conditions:
+--
+-- The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
+--
+-- THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+-- MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE
+-- FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+-- WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+
+
+module(...,package.seeall)
+
+-- There are 65782 scaled points in a PDF point
+-- Therefore we need to devide all TeX lengths by
+-- this amount to get the PDF points.
+local number_sp_in_a_pdf_point = 65782
+
+
+-- The idea is the following: at page shipout, all elements on a page are fixed.
+-- TeX creates an intermediate data structure before putting that into the PDF
+-- We can "intercept" that data structure and add pdf_literal (whatist) nodes,
+-- that makes glues, kerns and other items visible by drawing a rule, rectangle or
+-- other visual aids.
+-- This has no influence on typeset material, because these pdf_literal instructions
+-- are only visible to the PDF file (PDF renderer) and have no size themselves.
+
+-- We recursively loop through the contents of boxes and look at the (linear) list of
+-- items in that box. We start at the "shipout box".
+
+-- The "algorithm" goes like this:
+--
+-- head = pointer_to_beginning_of_box_material
+-- while head is not nil
+-- if this_item_is_a_box
+-- recurse_into_contents
+-- draw a rectangle around the contents
+-- elseif this_item_is_a_glue
+-- draw a rule that has the length of that glue
+-- elseif this_item_is_a_kern
+-- draw a rectangle with width of that kern
+-- ...
+-- end
+-- move pointer to the next item in the list
+-- -- the pointer is "nil" if there is no next item
+-- end
+
+
+function show_page_elements(parent)
+ local head = parent.list
+ while head do
+ if head.id == 0 or head.id == 1 then -- hbox / vbox
+
+ local rule_width = 0.1
+ local wd = head.width / number_sp_in_a_pdf_point - rule_width
+ local ht = (head.height + head.depth) / number_sp_in_a_pdf_point - rule_width
+ local dp = head.depth / number_sp_in_a_pdf_point - rule_width / 2
+
+ -- recurse into the contents of the box
+ show_page_elements(head)
+ local rectangle = node.new("whatsit","pdf_literal")
+ if head.id == 0 then -- hbox
+ rectangle.data = string.format("q 0.5 G %g w %g %g %g %g re s Q", rule_width, -rule_width / 2, -dp, wd, ht)
+ else
+ rectangle.data = string.format("q 0.1 G %g w %g %g %g %g re s Q", rule_width, -rule_width / 2, 0, wd, -ht)
+ end
+ head.list = node.insert_before(head.list,head.list,rectangle)
+
+
+ elseif head.id == 2 then -- rule
+ if head.width == 0 then head.width = 0.4 * 2^16 end
+ local goback = node.new("kern")
+ goback.kern = -head.width
+ node.insert_after(parent.list,head,goback)
+ head = goback
+
+
+ elseif head.id == 7 then -- disc
+ local hyphen_marker = node.new("whatsit","pdf_literal")
+ hyphen_marker.data = "q 0 0 1 RG 0.3 w 0 -1 m 0 0 l S Q"
+ parent.list = node.insert_before(parent.list,head,hyphen_marker)
+
+
+ elseif head.id == 10 then -- glue
+ local wd = head.spec.width
+ local color = "0.5 G"
+ if parent.glue_sign == 1 and parent.glue_order == head.spec.stretch_order then
+ wd = wd + parent.glue_set * head.spec.stretch
+ color = "0 0 1 RG"
+ elseif parent.glue_sign == 2 and parent.glue_order == head.spec.shrink_order then
+ wd = wd - parent.glue_set * head.spec.shrink
+ color = "1 0 1 RG"
+ end
+ local pdfstring = node.new("whatsit","pdf_literal")
+ if parent.id == 0 then --hlist
+ pdfstring.data = string.format("q %s [0.2] 0 d 0.5 w 0 0 m %g 0 l s Q",color,wd / number_sp_in_a_pdf_point)
+ else -- vlist
+ pdfstring.data = string.format("q 0.1 G 0.1 w -0.5 0 m 0.5 0 l -0.5 %g m 0.5 %g l s [0.2] 0 d 0.5 w 0.25 0 m 0.25 %g l s Q",-wd / number_sp_in_a_pdf_point,-wd / number_sp_in_a_pdf_point,-wd / number_sp_in_a_pdf_point)
+ end
+ parent.list = node.insert_before(parent.list,head,pdfstring)
+
+
+ elseif head.id == 11 then -- kern
+ local rectangle = node.new("whatsit","pdf_literal")
+ local color = "1 1 0 rg"
+ if head.kern < 0 then color = "1 0 0 rg" end
+ if parent.id == 0 then --hlist
+ rectangle.data = string.format("q %s 0 w 0 0 %g 1 re B Q",color, head.kern / number_sp_in_a_pdf_point )
+ else
+ rectangle.data = string.format("q %s 0 w 0 0 1 %g re B Q",color, -head.kern / number_sp_in_a_pdf_point )
+ end
+ parent.list = node.insert_before(parent.list,head,rectangle)
+
+ elseif head.id == 12 then -- penalty
+ local color = "1 g"
+ local rectangle = node.new("whatsit","pdf_literal")
+ if head.penalty < 10000 then
+ color = string.format("%d g", 1 - head.penalty / 10000)
+ end
+ rectangle.data = string.format("q %s 0 w 0 0 1 1 re B Q",color)
+ parent.list = node.insert_before(parent.list,head,rectangle)
+ end
+ head = head.next
+ end
+end
+
diff --git a/Master/texmf-dist/tex/luatex/lua-visual-debug/lua-visual-debug.sty b/Master/texmf-dist/tex/luatex/lua-visual-debug/lua-visual-debug.sty
new file mode 100644
index 00000000000..72839e48d93
--- /dev/null
+++ b/Master/texmf-dist/tex/luatex/lua-visual-debug/lua-visual-debug.sty
@@ -0,0 +1,35 @@
+% Version: 0.2
+% see lua file for copyright information (MIT License)
+
+\expandafter\ifx\csname ProvidesPackage\endcsname\relax
+ \input ifluatex.sty\relax
+\else
+ \NeedsTeXFormat{LaTeX2e}
+ \ProvidesPackage{lua-visual-debug}[2012/02/24 v0.2 Visual debugging in LuaLaTeX (PGU)]
+ \RequirePackage{ifluatex}
+\fi
+
+\def\dothings{%
+ \directlua{ lvd = require("lua-visual-debug")}%
+ \AtBeginShipout {\directlua{lvd.show_page_elements(tex.box["AtBeginShipoutBox"])}}%
+}
+
+\expandafter\ifx\csname ProvidesPackage\endcsname\relax
+ \ifluatex
+ \input atbegshi.sty\relax
+ \dothings
+ \AtBeginShipoutInit
+ \else
+ \message{Warning: lua-visual-debug only works with LuaTeX (plain and LaTeX format)}
+ \fi
+\else
+ \ifluatex
+ \RequirePackage{luatexbase,atbegshi}
+ \dothings
+ \else
+ \PackageWarning{lua-visual-debug}{You are using this package without LuaTeX. This is not supported, so you don't get any visual debugging.}
+ \fi
+\fi
+
+
+