is about finding the cause of errors or wrong results in (La)TeX code/documents using a methodical approach.

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10
votes
1answer
63 views

Log all keys in a module

Using l3keys, is there any way to inspect the keys currently in a (sub)module? I'm looking for something like \clist_show, but for keys. \keys_show sounded promising, but requires that you already ...
4
votes
1answer
2k views

Latex image not found

running TeXnicCenter LaTex >> PDF produces the following error: LaTex warning: File 'Energy_Arc.png' not found. Output shows empty box where image should be (with same error as above written ...
2
votes
0answers
56 views

Error with $ when using math in TikZ figure [duplicate]

I am drawing some figures with TikZ for a beamer presentation. I want one figure to look something like this: Additionally, I want to add labels under the intervals (the sections in between ticks ...
6
votes
1answer
905 views

How to find the exact location of Type 3 fonts in PDF?

While generating PDFs, we often ends up with some Type 3 fonts. We can find the existence of Type 3 fonts in a PDF by providing pdffonts <filename.pdf>. Also, can find the exact page by giving ...
1
vote
1answer
126 views

Usage of final option with package animate

I'm currently animating some inline graphics (TikZ) on a beamer presentation with the animate package, and have come across some weird behavior. Since I still have lots of work to do, I set the ...
4
votes
1answer
151 views

ybar stacked interferes with tikz background

When I compile the following code with ybar stacked option and the request for newsprint background the compiler tells me ! Extra }, or forgotten \endgroup. \endpgfonlayer ->\endgroup \hss \egroup ...
54
votes
3answers
3k views

2013, year of the TeX bugs report. Will pdfTeX, XeTeX, etc. be changed accordingly?

Barbara Beeton said (TUGboat vol. 34, pag. 4): As noted on Don Knuth's TeX web pages, www-cs-faculty.stanford.edu/~knuth/abcde.html, he "intend[s] to check on purported bugs again in the ...
4
votes
1answer
55 views

Bad interaction between keycommand and environ?

I suspect the keycommand and environ packages are not playing nicely together, because the following code gives an error. Can anybody explain what's going on? \documentclass{article} ...
2
votes
1answer
2k views

Debugging a custom-bib bst file that crashes on book items

I created my own bibliography file with custom-bib (makebst), but when I run it with a reference to a book I get: $ bibtex PhD [...normal output] Database file #1: PhD.bib You can't pop an empty ...
9
votes
2answers
4k views

Sublime Text 3 LatexTools

I just installed ST3 and installed the LatexTools package using Package control. Everything seems to have gone fine except when I compile using CMD+b nothing seems to happen. On the terminal I get ...
0
votes
1answer
76 views

Strange issue after removing bug

I removed a bug in my LaTeX code. Now the section is bug free because it uses code from a Lamport book. But it still is included in the pdf after using pdflatex more than once. What is the problem? ...
2
votes
1answer
151 views

Standalone - \newlabel being written to .log instead of .aux

In my compiled document, which consists of many sub-documents using standalone, I have one sub-document in which the Figure references are undefined - they show up as ??. No MWE I've tried can ...
2
votes
1answer
115 views

My WinEdt can only debug one file

I came across a weird question... The thing is, suddenly without and reasons, I could only pdfTeXify one file in my WinEdt. As you know, we usually open lots of files which we have edited historically ...
7
votes
1answer
774 views

Why does loading pgfplots after tikz break the default layers in a tikzpicture?

Taking the MWE from Jake's answer to the question Background rectangles with equal width but 'fitting' height, I get an error when loading pgfplots after the tikz packages but not before. I'm assuming ...
2
votes
1answer
93 views

No %.aux file in a particular directory

I have the following line in my report.tex \include{intro/introduction} \include{prlm/preliminary} \include{svy/survey} and the corresponding directory structure. The directory structure is ...
9
votes
2answers
112 views

Ease the handling of labels

I want to ease the handling of labels in my document, and I want to show the label for a section if define a "variable". Currently I'm doing it like this Setting the up the "variable": ...
2
votes
1answer
92 views

Unexpected hung latex compilation with property list retrieval

This is very closely related to a previous question of mine. From the comments to this previous question, I understand that my approach here is completely wrong headed. So why bother post a ...
1
vote
1answer
388 views

Debugging TikZ and PGFPlots compatibility issue

I just tried to compile an old TikZ code (which as far as I recall compiled perfectly in the past and was not changed in the meanwhile) and I faced some serious compilation issues related to TikZ. ...
9
votes
1answer
255 views

Using \typeout behaviour different with \newtoks vs. \def

I feel as I really should know this, but sadly I don't. Why is the output of \typeout{\the\myToken} not the same as having it printed in the PDF as \the\myToken. No problem with a \def, just with ...
10
votes
1answer
232 views

Get current source line number

How can I get the current .tex source line number? I want to use it to generate useful error messages in a package I am writing. There are some errors that can only be detected at the end of the ...
8
votes
1answer
2k views

Install emerald font package on ubuntu

I tried to install the emerald font package on my ubuntu natty box. However if I compile a minimal example like (emerald.tex) \documentclass{article} \usepackage{emerald} \usepackage[T1]{fontenc} ...
8
votes
1answer
2k views

How to find the lost text part when having “Float(s) lost” error

I've lost some text. I don't know if theres something missing, so how can I find it? I'm not in the mood to compare the chapter1.tex to the pdf file by reading both. Chapter 1 (chapter1.tex) is rather ...
2
votes
3answers
372 views

Help me to debug long LaTex equations with errors

I want to learn debugging of long LaTeX equations like below: $\tau=\int\frac{dt}{\gamma} = \int\sqrt{1-\frac{v(t)^2}{c^2}}dt = ...
3
votes
1answer
180 views

Print macro output instead of executing

I am attempting to debug a Tikz/PGF script. I have a STY file that generates Tikz/PGF scripts, but the output graphic isn't quite what I want it to be. In order to debug the problem, I was hoping ...
12
votes
4answers
2k views

LaTeX debugging strategies and brace mismatching

What is the recommended way to track down brace mismatches in LaTeX? I have a large beamer presentation, but this equally applies to any other LaTeX work I've done. In other computer languages I've ...
1
vote
0answers
697 views

tikzpicture fails when externalization is enabled [closed]

In a document of mine I'm trying to use the external library. For the record, I downloaded the CVS version of TikZ, since I want the better update checks. Anyway, I have a figure in my code which ...
6
votes
1answer
948 views

TikZ datavisualization example fails

While trying an example from the datavisualization section of the current TikZ manual I get a strange error message. On my system I have the current MikTeX 2.9 and installed the CVS version of TikZ ...
5
votes
0answers
304 views

Biblatex 2.1 bug [closed]

After updating my texlive 2012 installation using tlmgr update --all --self the biblatex was updated to version 2.1 and biber to version 1.1. Now I cannot compile my document. I get the following ...
0
votes
0answers
66 views

How can I debug this problem with math typesetting? [duplicate]

Possible Duplicate: problem compiling some 'math' using LuaLaTeX While trying to write an equation it seems that the square root does not like particular elements. I tried to ...
3
votes
2answers
193 views

Debugging vertical space on top of page (section inside a custom biblatex cite command)?

Please consider the following MWE, compiled with lualatex test.tex (+ bibtex test + lualatex test.tex): \documentclass[twoside,a4paper]{book} \usepackage{lua-visual-debug} \usepackage{lipsum} ...
60
votes
1answer
2k views

A LaTeX log analyzer application (visualizing TeX expansion)

Consider the following MWE, test.tex: \documentclass[12pt]{article} \begin{document} \tracingassigns=1 \tracingmacros=1 \def\aaa{something} \def\bbb{else \aaa, else} \edef\ccc{third \bbb, level} ...
7
votes
1answer
981 views

A \typeout (or expandable command) that can expand once - or with variable levels of expansion?

Consider the following MWE: \documentclass[12pt]{article} \begin{document} \def\aaa{something} \typeout{=1==\aaa==} \typeout{=1==\meaning\aaa==} \typeout{} \def\bbb{else \aaa, else} ...
4
votes
2answers
1k views

Output ASCII code as character on terminal in Latex?

If I have a letter/character, I can output its ASCII value using \number and backtick command: *\typeout{\number`a} 97 What do I do if I have "97", and I want to show "a" in terminal? I have ...
4
votes
1answer
312 views

Generating a catcode table in Latex (with \typeout to terminal)?

I often need to look up a catcode table, and quick searches on the web are rarely satisfying. So I thought, it must be (in the long term) easier to use a Latex function of sorts, to loop through all ...
5
votes
2answers
148 views

Showing definition of macros with custom characters?

Consider the following MWE: \documentclass{book} \usepackage{biblatex} \begin{document} \typeout{1.=\meaning\usebibmacro} \typeout{2.=\meaning\usebibmacro{name:first-last}} \makeatletter ...
23
votes
1answer
2k views

Latex \tracing commands list?

Often I need to recall the different \tracing commands; and a couple of times I stumbled on some webpages that worked fine for me; sadly, I didn't keep them, and my searches don't take me there ...
31
votes
3answers
28k views

LaTeX with Sublime Text 2

I recently (2 days back) started using LaTeX, I use Sublime Text 2 (ST2) for most of the programming. I found that ST2 has LaTeX package. So what I am doing is write the document with ST2 and run it ...
4
votes
1answer
254 views

Showing expanded `\let` command with `\typeout`

I have already seen the related page macros - What is the difference between \let and \edef?, but I'm afraid it still doesn't expain to me the following MWE: \documentclass{minimal} ...
6
votes
2answers
486 views

On unprotecting (expanding) \protected macros (or, “the space after command name”)

I quite often come into a situation, where I need to obtain some text produced by a package macro as a string, like in say: Expanding (edef) a lipsum command? How do I "unprotect" an ...
2
votes
2answers
141 views

Generating pages in response to iterated parameter on engine level?

Just to jot this down here, while I have the thought: The method I used for the .gif animations in Why does \vspace, after section heading, sometimes jump/snap in discrete steps? was basically have a ...
50
votes
4answers
1k views

Why does \vspace, after section heading, sometimes jump/snap in discrete steps?

Well, this is one question that I've had for a long time, and one that always gets me extremely irritated. However, this time I'm even somewhat happy - that I can ask the question at all; and that is ...
5
votes
3answers
301 views

\settowidth problem in tikz and in groups

I just came to the following problem - using \settowidth on a length in a tikzpicture resets that length to 0? Here is a (totally command-line) MWE, compiled with pdflatex test.tex: ...
1
vote
0answers
396 views

Debugging Lua in LuaLatex with LDT [closed]

LDT is an IDE for lua based on eclipse. It is quite nice and the best free lua debugger I've seen(I've just stumbled upon it the last 2 days or so). It took me a bit to get setup properly but because ...
10
votes
1answer
523 views

Visualizing correct page lengths with 'layouts' and 'tikz' packages?

I am currently working on a project with xelatex/fontspec and tikz, and so, this example is basically the same as the one from layouts package reads all length as zero with tikz/fontspec/xelatex?. ...
2
votes
1answer
128 views

layouts package reads all length as zero with tikz/fontspec/xelatex?

After getting the suggestion to use the layouts package for visual debugging of lengths, I came up with the following example, which I compile with xelatex test.tex: ...
4
votes
2answers
451 views

Visual debugging of lengths in paragraphs and environments?

During my searches, I found a couple of online images, which I doubt are produced with Latex - however, I found them immensely useful in understanding what is going on. I'm pretty sure the images ...
4
votes
1answer
1k views

How to print out to “log” without affecting anything else (lua print equiv)

lua's print is very effective for my debugging purposes but I can't easily use it in TeX because of all the macro expansion issues. All it does is print the text to the window (console window or ...
2
votes
2answers
344 views

Strange behaviour debugging a document with AUCTeX-GNUEmacs in math mode

When I try to compile this document \documentclass{article} \usepackage{amsmath} \begin{document} A simple fraction with an error $\frac{a}{b$ \end{document} I obviously get an error because there ...
2
votes
1answer
432 views

Unwanted spaces

The code given just after produces extra unwanted spaces indicated in the following picture. How can I fix it ? Sorry for the colors, this choices will be changed later when technical issues will be ...
13
votes
1answer
8k views

How do you effectively debug overfull \hbox warnings?

I still haven't found out how to effectively solve Overfull \hbox (0.80913pt too wide) has occurred while \output is active warnings. For instance, this piece of latex generates such a warning and I ...