[PATCH 0/2] Small improvements to qqz.sty

[PATCH 0/2] Small improvements to qqz.sty

[Paolo Bonzini]

The first patch avoids cluttering the log with warnings.  The
second adds cross-links between quick quizzes and their answers.

Paolo Bonzini (2):
  qqz: avoid duplicate references
  qqz: cross-link questions and answers

 qqz.sty | 12 +++++++-----
 1 file changed, 7 insertions(+), 5 deletions(-)

-- 
2.5.0

[PATCH 1/2] qqz: avoid duplicate references

[Paolo Bonzini]

\refstepcounter makes LaTeX create a label "quickquizctr.NN".  However
such labels repeat in every chapter, which causes a complaint that
"destination with the same identifier has been already used" in the
log.  Avoid clutter by using \stepcounter instead.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
 qqz.sty | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/qqz.sty b/qqz.sty
index 6a9da91..ca70c56 100644
--- a/qqz.sty
+++ b/qqz.sty
@@ -23,7 +23,7 @@
 	\label{#1}
 	\setcounter{quickquizctr}{0}}
 \newcommand{\QuickQuiz}[1]{
-	\refstepcounter{quickquizctr}
+	\stepcounter{quickquizctr}
 	\textbf{Quick Quiz \thechapter.\thequickquizctr:}}
 \newcommand{\QuickQuizAnswer}[1]{\rule{7pt}{7pt}}
 \newcommand{\QuickQuizEnd}{}
@@ -48,7 +48,7 @@
 	\section{#2}}

 \newcommand{\QuickQ}[1]{
-	\refstepcounter{quickquizctr} ~ \\ ~ \\
+	\stepcounter{quickquizctr} ~ \\ ~ \\
 	\textbf{Quick Quiz \QuickQuizAnswerChapter.\thequickquizctr:} #1 ~ \\ }

 \newcommand{\QuickA}[1]{\rule{7pt}{7pt} \\ ~ \\ \textbf{Answer:} \\ }
-- 
2.5.0

Re: [PATCH 1/2] qqz: avoid duplicate references

[Paul E. McKenney]

On Thu, Sep 17, 2015 at 11:32:55AM +0200, Paolo Bonzini wrote:
> \refstepcounter makes LaTeX create a label "quickquizctr.NN".  However
> such labels repeat in every chapter, which causes a complaint that
> "destination with the same identifier has been already used" in the
> log.  Avoid clutter by using \stepcounter instead.

Nice!  Queued and pushed.

							Thanx, Paul

> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
> ---
>  qqz.sty | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/qqz.sty b/qqz.sty
> index 6a9da91..ca70c56 100644
> --- a/qqz.sty
> +++ b/qqz.sty
> @@ -23,7 +23,7 @@
>  	\label{#1}
>  	\setcounter{quickquizctr}{0}}
>  \newcommand{\QuickQuiz}[1]{
> -	\refstepcounter{quickquizctr}
> +	\stepcounter{quickquizctr}
>  	\textbf{Quick Quiz \thechapter.\thequickquizctr:}}
>  \newcommand{\QuickQuizAnswer}[1]{\rule{7pt}{7pt}}
>  \newcommand{\QuickQuizEnd}{}
> @@ -48,7 +48,7 @@
>  	\section{#2}}
> 
>  \newcommand{\QuickQ}[1]{
> -	\refstepcounter{quickquizctr} ~ \\ ~ \\
> +	\stepcounter{quickquizctr} ~ \\ ~ \\
>  	\textbf{Quick Quiz \QuickQuizAnswerChapter.\thequickquizctr:} #1 ~ \\ }
> 
>  \newcommand{\QuickA}[1]{\rule{7pt}{7pt} \\ ~ \\ \textbf{Answer:} \\ }
> -- 
> 2.5.0
> 
> 
> --
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> 

[PATCH 2/2] qqz: cross-link questions and answers

[Paolo Bonzini]

This is useful even if you _are_ actually solving the quick quizzes.
Some ebook readers in particular support hyperlinks but have very
limited support for PDF search and back/forward.

The implementation is easy; it works by adding QQ.chapter.quiz labels
at the question and QQA.chapter.quiz at the answer.  The only
interesting point is using \edef and \getrefnumber to extract the
chapter number for answers, in a way that can be passed to
\hyperref.  An alternative would be to just use consecutive numbering
for the QQ and QQA labels, but I find this a little more elegant.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
 qqz.sty | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/qqz.sty b/qqz.sty
index ca70c56..7270468 100644
--- a/qqz.sty
+++ b/qqz.sty
@@ -18,13 +18,15 @@
 \newcounter{quickquizctr}
 \newcommand{\QuickQuizAnswerChapter}{\textbf{Unknown QuickQAC!!!}}

+\newcommand{\QuickQHeading}[3]{\label{#1.#3}\hyperref[#2.#3]{\textbf{Quick Quiz #3:}}}
+
 \newcommand{\QuickQuizChapter}[2]{
 	\chapter{#2}
 	\label{#1}
 	\setcounter{quickquizctr}{0}}
 \newcommand{\QuickQuiz}[1]{
 	\stepcounter{quickquizctr}
-	\textbf{Quick Quiz \thechapter.\thequickquizctr:}}
+	\QuickQHeading{QQ}{QQA}{\thechapter.\thequickquizctr}}
 \newcommand{\QuickQuizAnswer}[1]{\rule{7pt}{7pt}}
 \newcommand{\QuickQuizEnd}{}

@@ -43,12 +45,12 @@
 %% Internal interfaces generated by scripts.

 \newcommand{\QuickQAC}[2]{
-	\renewcommand{\QuickQuizAnswerChapter}{\ref{#1}}
+	\edef\QuickQuizAnswerChapter{\getrefnumber{#1}}
 	\setcounter{quickquizctr}{0}
 	\section{#2}}

 \newcommand{\QuickQ}[1]{
 	\stepcounter{quickquizctr} ~ \\ ~ \\
-	\textbf{Quick Quiz \QuickQuizAnswerChapter.\thequickquizctr:} #1 ~ \\ }
+	\QuickQHeading{QQA}{QQ}{\QuickQuizAnswerChapter.\thequickquizctr} #1 ~ \\ }

 \newcommand{\QuickA}[1]{\rule{7pt}{7pt} \\ ~ \\ \textbf{Answer:} \\ }
-- 
2.5.0

Re: [PATCH 2/2] qqz: cross-link questions and answers

[Paul E. McKenney]

On Thu, Sep 17, 2015 at 11:32:56AM +0200, Paolo Bonzini wrote:
> This is useful even if you _are_ actually solving the quick quizzes.
> Some ebook readers in particular support hyperlinks but have very
> limited support for PDF search and back/forward.
> 
> The implementation is easy; it works by adding QQ.chapter.quiz labels
> at the question and QQA.chapter.quiz at the answer.  The only
> interesting point is using \edef and \getrefnumber to extract the
> chapter number for answers, in a way that can be passed to
> \hyperref.  An alternative would be to just use consecutive numbering
> for the QQ and QQA labels, but I find this a little more elegant.

Very nice, people have been asking for this for some time.
On their behalf, thank you very much!!!  Queued and pushed.

							Thanx, Paul

> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
> ---
>  qqz.sty | 8 +++++---
>  1 file changed, 5 insertions(+), 3 deletions(-)
> 
> diff --git a/qqz.sty b/qqz.sty
> index ca70c56..7270468 100644
> --- a/qqz.sty
> +++ b/qqz.sty
> @@ -18,13 +18,15 @@
>  \newcounter{quickquizctr}
>  \newcommand{\QuickQuizAnswerChapter}{\textbf{Unknown QuickQAC!!!}}
> 
> +\newcommand{\QuickQHeading}[3]{\label{#1.#3}\hyperref[#2.#3]{\textbf{Quick Quiz #3:}}}
> +
>  \newcommand{\QuickQuizChapter}[2]{
>  	\chapter{#2}
>  	\label{#1}
>  	\setcounter{quickquizctr}{0}}
>  \newcommand{\QuickQuiz}[1]{
>  	\stepcounter{quickquizctr}
> -	\textbf{Quick Quiz \thechapter.\thequickquizctr:}}
> +	\QuickQHeading{QQ}{QQA}{\thechapter.\thequickquizctr}}
>  \newcommand{\QuickQuizAnswer}[1]{\rule{7pt}{7pt}}
>  \newcommand{\QuickQuizEnd}{}
> 
> @@ -43,12 +45,12 @@
>  %% Internal interfaces generated by scripts.
> 
>  \newcommand{\QuickQAC}[2]{
> -	\renewcommand{\QuickQuizAnswerChapter}{\ref{#1}}
> +	\edef\QuickQuizAnswerChapter{\getrefnumber{#1}}
>  	\setcounter{quickquizctr}{0}
>  	\section{#2}}
> 
>  \newcommand{\QuickQ}[1]{
>  	\stepcounter{quickquizctr} ~ \\ ~ \\
> -	\textbf{Quick Quiz \QuickQuizAnswerChapter.\thequickquizctr:} #1 ~ \\ }
> +	\QuickQHeading{QQA}{QQ}{\QuickQuizAnswerChapter.\thequickquizctr} #1 ~ \\ }
> 
>  \newcommand{\QuickA}[1]{\rule{7pt}{7pt} \\ ~ \\ \textbf{Answer:} \\ }
> -- 
> 2.5.0
> 
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