最初の近似値

Question 1

\hbox次の例では、右側のa に質問を配置します。ボックスの幅は、最も長い質問を使用して事前に測定されます。

\documentclass{article}
\usepackage[
  hmargin=1.5in,
]{geometry}
\usepackage{enumerate}

\newdimen\QuestionLength
\newcommand*{\QuestionFormat}[1]{\textbullet~#1}%
\settowidth{\QuestionLength}{%
  \QuestionFormat{Who did my friends invite to the party?}%
}
\newcommand*{\question}[1]{%
  \leavevmode
  \unskip
  \hspace*{1em plus 1fill}\hbox to \QuestionLength{%
    \QuestionFormat{#1}\hfill
  }%
  \par
}

\begin{document}
\begin{enumerate}[(1)]
\item
  This sentence is missing X.
  \question{What is this sentence missing?}

  Some comment/paragraph(s) in between.

\item
  X is missing a subject.
  \question{What/Who is missing a subject?}

  Some comment/paragraph(s) in between.

\item
  My friends invited X to the party.
  \question{Who did my friends invite to the party?}

  Some comment/paragraph(s) in between.

\item
  \question{Who did my friends invite?}
\end{enumerate}
\end{document}

左側のスペースを修正したバージョン

左側の最大のテキストの幅がに入力されます\LeftPartLength。次に、現在の行幅から左側部分の長さと分離スペースを引いて、質問の幅が計算されます。質問のための十分なスペースがない場合は、エラーがスローされます。

\documentclass{article}
\usepackage[
  hmargin=1.5in,
]{geometry}
\usepackage{enumerate}

\newcommand*{\QuestionFormat}[1]{\textbullet~#1}%
\newdimen\QuestionLength
\newdimen\LeftPartLength
\newdimen\MiddleSep
\setlength{\MiddleSep}{1em}
\settowidth{\QuestionLength}{%
  \QuestionFormat{Who did my friends invite to the party?}%
}
\settowidth{\LeftPartLength}{%
   Some comment/paragraph(s) in between.%
}

\newcommand*{\question}[1]{%
  \leavevmode
  \unskip
  \begingroup
    \dimen0=\dimexpr\linewidth - \LeftPartLength - \MiddleSep\relax
    \ifdim\dimen0<\QuestionLength
      \errmessage{Question is large by %
        \the\dimexpr\QuestionLength-\dimen0\relax.}%
    \fi
    \hspace*{\MiddleSep plus 1fill}%
    \hbox to \dimen0{%
      \QuestionFormat{#1}\hfill
    }%
  \endgroup
  \par
}

\begin{document}
\begin{enumerate}[(1)]
\item
  This sentence is missing X.
  \question{What is this sentence missing?}

  Some comment/paragraph(s) in between.

\item
  X is missing a subject.
  \question{What/Who is missing a subject?}

  Some comment/paragraph(s) in between.

\item
  My friends invited X to the party.
  \question{Who did my friends invite to the party?}

  Some comment/paragraph(s) in between.

\item
  \question{Who did my friends invite?}
\end{enumerate}
\end{document}

Answer

\hbox次の例では、右側のa に質問を配置します。ボックスの幅は、最も長い質問を使用して事前に測定されます。

\documentclass{article}
\usepackage[
  hmargin=1.5in,
]{geometry}
\usepackage{enumerate}

\newdimen\QuestionLength
\newcommand*{\QuestionFormat}[1]{\textbullet~#1}%
\settowidth{\QuestionLength}{%
  \QuestionFormat{Who did my friends invite to the party?}%
}
\newcommand*{\question}[1]{%
  \leavevmode
  \unskip
  \hspace*{1em plus 1fill}\hbox to \QuestionLength{%
    \QuestionFormat{#1}\hfill
  }%
  \par
}

\begin{document}
\begin{enumerate}[(1)]
\item
  This sentence is missing X.
  \question{What is this sentence missing?}

  Some comment/paragraph(s) in between.

\item
  X is missing a subject.
  \question{What/Who is missing a subject?}

  Some comment/paragraph(s) in between.

\item
  My friends invited X to the party.
  \question{Who did my friends invite to the party?}

  Some comment/paragraph(s) in between.

\item
  \question{Who did my friends invite?}
\end{enumerate}
\end{document}

左側のスペースを修正したバージョン

左側の最大のテキストの幅がに入力されます\LeftPartLength。次に、現在の行幅から左側部分の長さと分離スペースを引いて、質問の幅が計算されます。質問のための十分なスペースがない場合は、エラーがスローされます。

\documentclass{article}
\usepackage[
  hmargin=1.5in,
]{geometry}
\usepackage{enumerate}

\newcommand*{\QuestionFormat}[1]{\textbullet~#1}%
\newdimen\QuestionLength
\newdimen\LeftPartLength
\newdimen\MiddleSep
\setlength{\MiddleSep}{1em}
\settowidth{\QuestionLength}{%
  \QuestionFormat{Who did my friends invite to the party?}%
}
\settowidth{\LeftPartLength}{%
   Some comment/paragraph(s) in between.%
}

\newcommand*{\question}[1]{%
  \leavevmode
  \unskip
  \begingroup
    \dimen0=\dimexpr\linewidth - \LeftPartLength - \MiddleSep\relax
    \ifdim\dimen0<\QuestionLength
      \errmessage{Question is large by %
        \the\dimexpr\QuestionLength-\dimen0\relax.}%
    \fi
    \hspace*{\MiddleSep plus 1fill}%
    \hbox to \dimen0{%
      \QuestionFormat{#1}\hfill
    }%
  \endgroup
  \par
}

\begin{document}
\begin{enumerate}[(1)]
\item
  This sentence is missing X.
  \question{What is this sentence missing?}

  Some comment/paragraph(s) in between.

\item
  X is missing a subject.
  \question{What/Who is missing a subject?}

  Some comment/paragraph(s) in between.

\item
  My friends invited X to the party.
  \question{Who did my friends invite to the party?}

  Some comment/paragraph(s) in between.

\item
  \question{Who did my friends invite?}
\end{enumerate}
\end{document}

Question 2

touhamiさんの提案のおかげで、を使ったより一般的な解決策を見つけましたzref-savepos。説明についてはパッケージのドキュメントを参照してください。1つの難点は、絶対位置は扱いにくいのに相対位置は問題ないということです。5つのコンピレーション物事を正しくするために！

コメント付きのコードは次のとおりです:

\documentclass[a4paper,10pt,DIV13]{scrartcl}
\usepackage{expex}
\usepackage{tabu}
\usepackage{ifthen}
\usepackage{calc}
\usepackage{zref-user}
\usepackage{zref-savepos}

\begin{document}

% because the bullets where here only to explicit what I wanted to align
% I didn't include them in the macros

% first the more general solution for paragraphs

\newlength{\tab}% the length of the jumps
\newcommand{\banchor}[1]{\zsaveposx{#1}}% choose the reference point

\newcommand{\balign}[2]{% the 1st argument is the anchorname of the current jump
                        % the 2nd argument is the name of the general anchor chosen
                        % through \banchor
\rule{0pt}{0pt}% to avoid trouble at the beginning of lines
\zsaveposx{#1}\zrefused{#1}% set the reference point from where you want to jump
\setlength{\tab}{\zposx{#2}sp-\zposx{#1}sp}% calculate the length of the jump
\ifthenelse{\lengthtest{\tab<0pt}}% if it's a negative jump,
  {\\\rule{0pt}{0pt}\zsaveposx{#1improbablename}%
    % then begin a new line and set the reference at its beginning
    % with a new anchor name
  \setlength{\tab}{\zposx{#2}sp-\zposx{#1improbablename}sp}% recalculate the jump
  } %
  {}%
\parbox[l]{\tab}{\rule{0pt}{0pt}}% use a \parbox to jump a exact unstrechtable length
% \hspace*{\tab} doesn't work here, because it's strechtable
}

This paragraph horizontally jumps\hspace*{4em}\banchor{B}\textbullet\ at  some point
for some reason. The rest of the text can span other the next lines. 
% this jump is arbitrary, the next ones (previous ones would also work)
% will adapt and align with it

This paragraph wants its jump to land\balign{Ba}{B}\textbullet\ exactly at the same
absolute horizontal position as the jump from the above paragraph (quite perfectly
executed here).

\balign{Bb}{B}\textbullet\ jumping directly to the point is also an option.

How to behave when the position is reached before jumping\balign{Bc}{B}\textbullet\ could
be defined by jumping to the next line.

The jump can also happen The jump can also happen The jump can also happen in the second
line of the paragraph, so that it looks like
\balign{Be}{B}\textbullet\ this jump. 

\bigskip
\hrule

% now to the linguistic examples, following the same principles, 
% but a bit adapted for the more specific needs of the linguistic  examples:
% compile and detect where to put the aligning anchor with \bmark
% use \btab to align the other right parts with it

\newlength{\tabmin}\setlength{\tabmin}{1em}

\newcommand{\bmark}[1]{%
\zsaveposx{#1}\zrefused{#1}\hspace*{\tabmin}}

\newcommand{\btab}[2]{%
\zsaveposx{#1}\zrefused{#1}%
\setlength{\tab}{\tabmin+\zposx{#2}sp-\zposx{#1}sp}%
\hspace*{\tab}}% \hspace* is ok, because wrapped lines are unexpected

\ex This sentence misses X.\btab{Aa}{A}\textbullet\ What does this sentence  miss?
\xe

Comments/explanations/paragraphs in between.

\ex X misses a subject.\btab{Ab}{A}\textbullet\ Who/what misses a subject?
\xe

Another comment.

\ex My friends invited X to the party.\bmark{A}\textbullet\ Who
did my friends invite to the party?
\xe

Another comment.

\ex \btab{Ac}{A}\textbullet\ Who did my friends invite?
\xe

\end{document}

編集

\parbox[l]{\tab}{\rule{0pt}{0pt}}ここで、とを単純なルールに置き換えました\hspace*{\tab}。これにより、高さをゼロ以外の値に設定した場合に、正確なジャンプを視覚化できるようになります\rule{\tab}{0pt}。

改善はまだ保留中です。私のアプローチでは、ユーザーはドキュメント内で必要なジャンプと同じ数の異なる名前を見つける必要があります。おそらくカウンターでこの部分の作業を自動化して、コマンドが 1 つの引数だけを取るようにできるでしょ\balignう\btab。

これらのマクロを他の場所 (表形式、またはグラフィックを扱う場合など) でテストすると、重大な制限が明らかになる可能性があります。

今のところ、この解決策が私のお気に入りです。

Answer

touhamiさんの提案のおかげで、を使ったより一般的な解決策を見つけましたzref-savepos。説明についてはパッケージのドキュメントを参照してください。1つの難点は、絶対位置は扱いにくいのに相対位置は問題ないということです。5つのコンピレーション物事を正しくするために！

コメント付きのコードは次のとおりです:

\documentclass[a4paper,10pt,DIV13]{scrartcl}
\usepackage{expex}
\usepackage{tabu}
\usepackage{ifthen}
\usepackage{calc}
\usepackage{zref-user}
\usepackage{zref-savepos}

\begin{document}

% because the bullets where here only to explicit what I wanted to align
% I didn't include them in the macros

% first the more general solution for paragraphs

\newlength{\tab}% the length of the jumps
\newcommand{\banchor}[1]{\zsaveposx{#1}}% choose the reference point

\newcommand{\balign}[2]{% the 1st argument is the anchorname of the current jump
                        % the 2nd argument is the name of the general anchor chosen
                        % through \banchor
\rule{0pt}{0pt}% to avoid trouble at the beginning of lines
\zsaveposx{#1}\zrefused{#1}% set the reference point from where you want to jump
\setlength{\tab}{\zposx{#2}sp-\zposx{#1}sp}% calculate the length of the jump
\ifthenelse{\lengthtest{\tab<0pt}}% if it's a negative jump,
  {\\\rule{0pt}{0pt}\zsaveposx{#1improbablename}%
    % then begin a new line and set the reference at its beginning
    % with a new anchor name
  \setlength{\tab}{\zposx{#2}sp-\zposx{#1improbablename}sp}% recalculate the jump
  } %
  {}%
\parbox[l]{\tab}{\rule{0pt}{0pt}}% use a \parbox to jump a exact unstrechtable length
% \hspace*{\tab} doesn't work here, because it's strechtable
}

This paragraph horizontally jumps\hspace*{4em}\banchor{B}\textbullet\ at  some point
for some reason. The rest of the text can span other the next lines. 
% this jump is arbitrary, the next ones (previous ones would also work)
% will adapt and align with it

This paragraph wants its jump to land\balign{Ba}{B}\textbullet\ exactly at the same
absolute horizontal position as the jump from the above paragraph (quite perfectly
executed here).

\balign{Bb}{B}\textbullet\ jumping directly to the point is also an option.

How to behave when the position is reached before jumping\balign{Bc}{B}\textbullet\ could
be defined by jumping to the next line.

The jump can also happen The jump can also happen The jump can also happen in the second
line of the paragraph, so that it looks like
\balign{Be}{B}\textbullet\ this jump. 

\bigskip
\hrule

% now to the linguistic examples, following the same principles, 
% but a bit adapted for the more specific needs of the linguistic  examples:
% compile and detect where to put the aligning anchor with \bmark
% use \btab to align the other right parts with it

\newlength{\tabmin}\setlength{\tabmin}{1em}

\newcommand{\bmark}[1]{%
\zsaveposx{#1}\zrefused{#1}\hspace*{\tabmin}}

\newcommand{\btab}[2]{%
\zsaveposx{#1}\zrefused{#1}%
\setlength{\tab}{\tabmin+\zposx{#2}sp-\zposx{#1}sp}%
\hspace*{\tab}}% \hspace* is ok, because wrapped lines are unexpected

\ex This sentence misses X.\btab{Aa}{A}\textbullet\ What does this sentence  miss?
\xe

Comments/explanations/paragraphs in between.

\ex X misses a subject.\btab{Ab}{A}\textbullet\ Who/what misses a subject?
\xe

Another comment.

\ex My friends invited X to the party.\bmark{A}\textbullet\ Who
did my friends invite to the party?
\xe

Another comment.

\ex \btab{Ac}{A}\textbullet\ Who did my friends invite?
\xe

\end{document}

編集

\parbox[l]{\tab}{\rule{0pt}{0pt}}ここで、とを単純なルールに置き換えました\hspace*{\tab}。これにより、高さをゼロ以外の値に設定した場合に、正確なジャンプを視覚化できるようになります\rule{\tab}{0pt}。

改善はまだ保留中です。私のアプローチでは、ユーザーはドキュメント内で必要なジャンプと同じ数の異なる名前を見つける必要があります。おそらくカウンターでこの部分の作業を自動化して、コマンドが 1 つの引数だけを取るようにできるでしょ\balignう\btab。

これらのマクロを他の場所 (表形式、またはグラフィックを扱う場合など) でテストすると、重大な制限が明らかになる可能性があります。

今のところ、この解決策が私のお気に入りです。

Question 3

最初の近似値

この\parboxソリューションは非常に短いテキストにのみ有効です。より複雑なプログラムを以下に示します。

\documentclass[a4paper]{article}
\usepackage[T1]{fontenc}
\usepackage{lipsum}

\makeatletter

\def\do#1{\@ifdefinable #1{\newdimen #1}}
% the above is because \newlength allocates a \skip
\do\JumpIndentation
\do\JPprevpardepth

% To allow customization:
\@ifdefinable\EveryJumpingPar{
    \newtoks\EveryJumpingPar \EveryJumpingPar={}
}

\newcommand*\StartJumpingPar{\par
    \JPprevpardepth \prevdepth
    \setbox\z@ \vbox\bgroup
        \color@begingroup % not sure it's really necessary
        \parfillskip \@flushglue
        \prevdepth \JPprevpardepth
        \indent \the\EveryJumpingPar
}
\newcommand*\Jump{%
        \par
        \color@endgroup
    \egroup
    \setbox\tw@ \vbox{%
        \unvcopy\z@
        \setbox\tw@ \lastbox % note that "\indent\par" yields at least one box
        \global \setbox\@ne \hbox{\unhbox\tw@}%
        \global \dimen@i \lastskip % should be -- finger crossed! -- the 
                                  % interline glue above the last box
        \unskip \unpenalty % remove interline glue and widow penalty
        \setbox\tw@ \lastbox % if non-void, assume it is penultimate line
        \global \dimen3 \ifvoid\tw@
            \JPprevpardepth
        \else
            \dp\tw@
        \fi
    }%
    \unvbox\z@
    \ifdim \wd\@ne<\JumpIndentation
        % backspace vertically by one line
        \skip@ \parskip
        \advance \skip@ \ht\@ne
        \advance \skip@ \dp\@ne
        \advance \skip@ \dimen@i
        \vskip -\skip@
        \prevdepth \dimen3
    \else
        \prevdepth \dp\@ne
    \fi
    {\parindent \JumpIndentation \indent}%
    \ignorespaces
}

\makeatother

\setlength{\JumpIndentation}{.57\textwidth} % set as desired



\begin{document}

Let's begin with an ordinart paragraph.

\lipsum[1]

\StartJumpingPar
Now a ``jumping paragraph''.
\lipsum*[1]\Jump\lipsum*[2]

Another ordinary (\emph{i.e.}, ``non-jumping'') paragraph in between, consisting
of at least two lines of text.

\StartJumpingPar
Note that all ``jump'' positions\Jump are vertically aligned, as required.

\StartJumpingPar
If the horizontal position to jump to has already been passed,\Jump the
\verb|\Jump| commands jumps to the next line, as required too.

\StartJumpingPar
Let's try, this time, to get aaaaalmost to\Jump the point!  Now we try again, 
with just one more~``a''.

\StartJumpingPar
Let's try, this time, to get aaaaaalmost to\Jump the point!  Are you satisfied?

\EveryJumpingPar{\textbullet\ }

\StartJumpingPar
Moreover, you can use the token register \verb|\EveryJumpingPar| to customize 
the appearance of\Jump your ``jumping paragraphs''.

That's all, folks!

\end{document}

このコードによって生成される出力は次のとおりです。

これは答えへの最初の近似値とみなされるべきです。可能な機能強化を紹介する前に、OP のコメントを待ちます。

2番目の近似値

今回はという環境を定義しますJumpingParagraphs。この環境には以下が含まれている必要があります。のみ通常の段落のみを対象とします。この環境に含まれる各段落内では、この\Jumpコマンドを使用して、固定長で指定された水平位置にタブを移動できます\JumpIndentation。この\Jumpコマンドは、同じ段落内で無制限に使用できます。

\documentclass[a4paper]{article}
\usepackage[T1]{fontenc}
\usepackage{lipsum}

\makeatletter

\def\do#1{\@ifdefinable #1{\newdimen #1}}
% the above is because \newlength allocates a \skip
\do\JumpIndentation
\do\@JP@normal@indent
\do\@JP@prevpardepth

% To allow customization:
\@ifdefinable\EveryJumpingPar{
    \newtoks\EveryJumpingPar \EveryJumpingPar={}
}

\@ifdefinable\@JP@saved@par{} % just check that the name can be used
\newenvironment*{JumpingParagraphs}{%
    \@JP@normal@indent \parindent
    \let\@JP@saved@par\par
    \def\par{\@JP@par@close\@JP@start@paragraph}%
    \@JP@start@paragraph
}{%
    \@JP@par@close
}
\newcommand*\@JP@start@paragraph{%
    \@JP@par@open\@JP@normal@indent{\the\EveryJumpingPar}%
}
\newcommand*\@JP@par@open[2]{%
    \@JP@prevpardepth \prevdepth
    \setbox\z@ \vbox\bgroup
        \color@begingroup % not sure it's really necessary
        \parfillskip \@flushglue
        \prevdepth \@JP@prevpardepth
        {\parindent #1\indent #2}%
        \ignorespaces
}
\newcommand*\@JP@par@close{%
        \@JP@saved@par
        \global \dimen@i \prevdepth
        \color@endgroup
    \egroup
    \unvcopy\z@
    \prevdepth \dimen@i % for the moment
}
\newcommand*\Jump{%
    \@JP@par@close
    \setbox\z@ \vbox{%
        \unvbox\z@
        \setbox\z@ \lastbox % note that "\indent\par" yields at least one box
        \global \setbox\@ne \hbox{\unhbox\z@}%
        \global \dimen@i \lastskip % should be -- finger crossed! -- the 
                                   % interline glue above the last box
        \unskip \unpenalty % remove interline glue and widow penalty
        \setbox\z@ \lastbox % if non-void, assume it is penultimate line
        \global \dimen3 \ifvoid\z@
            \@JP@prevpardepth
        \else
            \dp\z@
        \fi
    }%
    \ifdim \wd\@ne<\JumpIndentation
        % backspace vertically by one line
        \skip@ \parskip
        \advance \skip@ \ht\@ne
        \advance \skip@ \dp\@ne
        \advance \skip@ \dimen@i
        \vskip -\skip@
        \prevdepth \dimen3
        \dimen@ \ht\@ne
    \else
        \prevdepth \dp\@ne
        \dimen@ \z@
    \fi
    \@JP@par@open\JumpIndentation{\vrule \@width\z@ \@height\dimen@}%
}

\makeatother

\setlength{\JumpIndentation}{.57\textwidth} % set as desired



\begin{document}

Let's begin with an ordinary paragraph.

\lipsum[1]

\begin{JumpingParagraphs}
% No empty lines here!
Now a ``jumping paragraph''.
\lipsum*[1]\Jump\lipsum*[2]
\Jump Regrettably, \verb|Overfull \hbox|'es might occur: this is almost
inevitable, given the fact that a line containing a ``jump'' places a double
constraint on the choice of the breakpoints.

Another ordinary (\emph{i.e.}, ``non-jumping'') paragraph in between, consisting
of at least two lines of text.  Note that it occurs \emph{within} a 
\texttt{JumpingParagraphs} environment.

Note that all ``jump'' positions\Jump are vertically aligned, as required.

If the horizontal position to jump to has already been passed,\Jump the
\verb|\Jump| commands jumps to the next line, as required too.

Let's try, this time, to get aaaaalmost to\Jump the point!  Now we try again, 
with just one more~``a''.

Let's try, this time, to get aaaaaalmost to\Jump the point!  Are you satisfied?

Moreover, you can use the token register \verb|\EveryJumpingPar| to customize 
the appearance of\Jump your ``jumping paragraphs''.  However, it must be set 
\emph{outside} of the \texttt{JumpingParagraphs} environment.

The \verb|\Jump| command can also be used\Jump several times\Jump within a
single paragraph.  And in-line mathematics (say, \( y=\sin(x) \)) may\Jump
occur, too.  As it is quite obvious, you can both jump \emph{to} math\Jump\(
y=\frac{1}{x} \), and \emph{from} math (the last equation is better
written as \( y=1/x \),\Jump isn't it?).  It is also possible to use unusually
high formulas, as in \( \displaystyle
\biggl(\frac{1}{x}+\frac{1}{y}\biggr)\biggl(\frac{1}{x}-\frac{1}{y}\biggr) \),
and, even in case of a\Jump jump, the spacing will be correct!

But alas, \( \displaystyle \frac{x}{y}+\frac{y}{x}=\frac{x^{2}+y^{2}}{xy} \)
\Jump fails miserably: the spacing is correct for the second half of the line,
but not for the first.  You should keep in mind this limitation.  On the other
hand,\Jump \( \displaystyle \frac{x}{y}+\frac{y}{x}=\frac{x^{2}+y^{2}}{xy} \)
works in a more or less acceptable way, as you can see.

\textbf{Main limitation:} a \texttt{JumpingParagraphs} environment cannot
contain \emph{anything} but ordinary paragraphs.
% No empty lines here!
\end{JumpingParagraphs}

This paragraph is outside the \texttt{JumpingParagraphs} environment.  Note 
that line spacing is correct

\bigbreak

\EveryJumpingPar = {\textbullet\ }

We have just set \verb|\EveryJumpingPar| to contain \verb*|\textbullet\ |.  Now 
we start another \texttt{JumpingParagraphs} environment.

\begin{JumpingParagraphs}
    $X$~misses something.
    \Jump What is $X$ missing?

    This sentence misses~$X$.
    \Jump What is missing?

    This sentence $X$ something.
    \Jump What is missing?
\end{JumpingParagraphs}

That's all, folks!

\end{document}

3番目（および4番目）の近似値

2 番目の近似では、入力に複数のトークンが出現するケースを正しく処理できませんでした。これは、余分な空白行が原因である可能性があるためです。3 番目の近似では、マクロをトリガーする\par手段を使用してこの欠陥を修正し、トークンレジスタも追加します。\everypar\@JP@start@paragraph\EveryJump

\documentclass[a4paper]{article}
\usepackage[T1]{fontenc}
\usepackage{lipsum}
\usepackage{color}

\definecolor{subdued}{gray}{.75}

\makeatletter

\def\do#1{\@ifdefinable #1{\newdimen #1}}
% the above is because \newlength allocates a \skip
\do\JumpIndentation
\do\@JP@normal@indent
\do\@JP@prevpardepth

% To allow customization:
\def\do#1{\@ifdefinable #1{\newtoks #1#1{}}}
\do\EveryJumpingPar
\do\EveryJump

\@ifdefinable\@JP@saved@par{} % just check that the name can be used
\@ifdefinable\@JP@next{}
\newenvironment*{JumpingParagraphs}{%
    \everypar{\@JP@start@paragraph}%
}{%
    \par
}
\newcommand*\@JP@start@paragraph{%
    \@JP@normal@indent \parindent
    \let\@JP@saved@par\par
    \setbox\z@ \lastbox % get indentation box
    \@@par % return to vertical mode with an empty paragraph
    \ifvoid\z@
        \let \@JP@next \noindent
    \else
        \let \@JP@next \indent
    \fi
    \@JP@par@open\@JP@next\@JP@normal@indent{\the\EveryJumpingPar}%
}
\newcommand*\@JP@par@open[3]{%
    % #1 <- either "\indent" or "\noindent"
    % #2 <- indentation amount
    % #3 <- tokens to insert at the beginning of the paragraph
    \@JP@prevpardepth \prevdepth
    \setbox\z@ \vbox\bgroup
        \color@begingroup % not sure it's really necessary
        \parfillskip \@flushglue
        \everypar{}%
        \let\par\@JP@par@close
        \prevdepth \@JP@prevpardepth
        {\parindent #2#1#3}%
        \ignorespaces
}
\newcommand*\@JP@par@close{%
        \@JP@saved@par
        \global \dimen@i \prevdepth
        \color@endgroup
    \egroup
    \unvcopy\z@
    \prevdepth \dimen@i % for the moment
}
\newcommand*\Jump{%
    \@JP@par@close
    \setbox\z@ \vbox{%
        \unvbox\z@
        \setbox\z@ \lastbox % note that "\indent\par" yields at least one box
        \global \setbox\@ne \hbox{\unhbox\z@}%
        \global \skip\@ne \lastskip % should be -- finger crossed! -- the 
                                    % interline glue above the last box
        \unskip \unpenalty % remove interline glue and widow penalty
        \setbox\z@ \lastbox % if non-void, assume it is penultimate line
        \global \dimen@i \ifvoid\z@
            \@JP@prevpardepth
        \else
            \dp\z@
        \fi
    }%
    \ifdim \wd\@ne<\JumpIndentation
        % backspace vertically by one line
        % Note: no "\parskip" glue is added in internal vertical mode when the
        %       current list is empty, so we don't need to compensate for it!
        \skip@ \skip\@ne
        \advance \skip@ \ht\@ne
        \advance \skip@ \dp\@ne
        \vskip -\skip@
        \prevdepth \dimen@i
        \dimen@   \ht\@ne
        \dimen@ii \dp\@ne
    \else
        \prevdepth \dp\@ne
        \dimen@   \z@
        \dimen@ii \z@
    \fi
    \@JP@par@open\indent\JumpIndentation{%
        % It was trivial to fix this one!
        \vrule \@width\z@ \@height\dimen@ \@depth\dimen@ii \relax
        % Now "\relax" is no longer necessary, actually.
        \the\EveryJump
    }%
}

\makeatother

\setlength{\JumpIndentation}{.57\textwidth} % set as desired



\begin{document}

Let's begin with an ordinary paragraph.

\lipsum[1]

\begin{JumpingParagraphs}

% Empty lines are now allowed here.

Now a ``jumping paragraph''.
\lipsum*[1]\Jump\lipsum*[2]
\Jump Regrettably,\hfil\verb|Overfull \hbox|'es might occur: this is almost
inevitable, given the fact that a line containing a ``jump'' places a double
constraint on the choice of the breakpoints.

% Multiple blank lines in the input are now handled correctly:


Another ordinary (\emph{i.e.}, ``non-jumping'') paragraph in between, consisting
of at least two lines of text.  Note that it occurs \emph{within} a 
\texttt{JumpingParagraphs} environment.

Note that all ``jump'' positions\Jump are vertically aligned, as required.

If the horizontal position to jump to has already been passed,\Jump the
\verb|\Jump| commands jumps to the next line, as required too.

Let's try, this time, to get aaaaalmost to\Jump the point!  Now we try again, 
with just one more~``a''.

Let's try, this time, to get aaaaaalmost to\Jump the point!  Are you satisfied?

\EveryJumpingPar = {\textbullet\ }

Moreover, you can use the token register \verb|\EveryJumpingPar| to customize 
the appearance of\Jump your ``jumping paragraphs''.

\EveryJump = {\textasteriskcentered\ }

In the same way, the \verb|\EveryJump| tokens\Jump are inserted each time a
\verb|\Jump| command\Jump is executed, as it is exemplified by this same\Jump
paragraph.

These token registers can now also be set inside the \texttt{JumpingParagraphs}
environment itself.

\EveryJumpingPar = {}
\EveryJump = {}

The \verb|\Jump| command can also be used\Jump several times\Jump within a
single paragraph.  And in-line mathematics (say, \( y=\sin(x) \)) may\Jump
occur, too.  As it is quite obvious, you can both jump \emph{to} math\Jump\(
y=\frac{1}{x} \), and \emph{from} math (the last equation is better
written as \( y=1/x \),\Jump isn't it?).  It is also possible to use unusually
high formulas, as in \( \displaystyle
\biggl(\frac{1}{x}+\frac{1}{y}\biggr)\biggl(\frac{1}{x}-\frac{1}{y}\biggr) \),
and, even in case of a\Jump jump, the spacing will be correct!

And now, also \( \displaystyle \frac{x}{y}+\frac{y}{x}=\frac{x^{2}+y^{2}}{xy} \)
\rlap{\color{subdued}sminnief}\Jump functions with absolute perfection: line
spacing is correct both for the first half of the line and for the second one.
On the other hand,\Jump \( \displaystyle
\frac{x}{y}+\frac{y}{x}=\frac{x^{2}+y^{2}}{xy} \) works in a less satisfactory
way, as you can see.  You should keep in mind this limitation.

\textbf{Main limitation:} a \texttt{JumpingParagraphs} environment cannot
contain \emph{anything} but ordinary paragraphs.

\noindent Note that \verb|\noindent| commands\Jump \emph{are} honored: indeed,
this has now been corrected (in an update).

\begingroup

\setlength{\parindent}{4em}

Also, \verb|\parindent| may now vary\Jump from one paragraph\Jump to another:
I~had completely overlooked this in the previous versions!

Another paragraph with the same\Jump different indentation.

\endgroup

Back to previous indentation,\Jump with a jump.

One last paragraph without jumps.

% Empty lines are now allowed here.

\end{JumpingParagraphs}

This paragraph is outside the \texttt{JumpingParagraphs} environment.  Note 
that line spacing is correct.

\bigbreak

\newcounter{sentence}
\renewcommand*{\thesentence}{{\normalfont (\textit{\alph{sentence}})}}
\EveryJumpingPar = {\refstepcounter{sentence}\llap{\thesentence\ }}
\EveryJump = {\textbullet\ }

We have just set \verb|\EveryJumpingPar| to contain a numbered label, which is
automatically stepped, and \verb|\EveryJump| to contain \verb*|\textbullet\ |.
Now we start another \texttt{JumpingParagraphs} environment.

\begin{JumpingParagraphs}
    \setlength{\parskip}{\medskipamount}

    $X$~misses something.
    \Jump What is $X$ missing?

    This sentence misses~$X$.
    \Jump What is missing?

    This sentence $X$ something.
    \Jump What is missing?

    Now, get close to the jump destination...
    \Jump to be sure that the baselines are lined up properly.
\end{JumpingParagraphs}

That's all, folks!

\end{document}

今回は出力も表示します:

を使用するソリューションはzref-savepos確かにこれよりも柔軟です。しかし、および\pdfsavepos関連プリミティブを -time で操作する必要\shipoutもなく、2 パスコンパイルも必要なく、ボックスとグルーを操作するだけで、古き良き「プレーン TeX スタイル」の方法で目標を完全に達成できる方法を示すことは興味深いかもしれません。

私ははっきり認めなければならない、この質問もっている捕まりました！私は何度も回答を改良しており、最終的には完全なパッケージを投稿することになるでしょう...

Answer

最初の近似値

この\parboxソリューションは非常に短いテキストにのみ有効です。より複雑なプログラムを以下に示します。

\documentclass[a4paper]{article}
\usepackage[T1]{fontenc}
\usepackage{lipsum}

\makeatletter

\def\do#1{\@ifdefinable #1{\newdimen #1}}
% the above is because \newlength allocates a \skip
\do\JumpIndentation
\do\JPprevpardepth

% To allow customization:
\@ifdefinable\EveryJumpingPar{
    \newtoks\EveryJumpingPar \EveryJumpingPar={}
}

\newcommand*\StartJumpingPar{\par
    \JPprevpardepth \prevdepth
    \setbox\z@ \vbox\bgroup
        \color@begingroup % not sure it's really necessary
        \parfillskip \@flushglue
        \prevdepth \JPprevpardepth
        \indent \the\EveryJumpingPar
}
\newcommand*\Jump{%
        \par
        \color@endgroup
    \egroup
    \setbox\tw@ \vbox{%
        \unvcopy\z@
        \setbox\tw@ \lastbox % note that "\indent\par" yields at least one box
        \global \setbox\@ne \hbox{\unhbox\tw@}%
        \global \dimen@i \lastskip % should be -- finger crossed! -- the 
                                  % interline glue above the last box
        \unskip \unpenalty % remove interline glue and widow penalty
        \setbox\tw@ \lastbox % if non-void, assume it is penultimate line
        \global \dimen3 \ifvoid\tw@
            \JPprevpardepth
        \else
            \dp\tw@
        \fi
    }%
    \unvbox\z@
    \ifdim \wd\@ne<\JumpIndentation
        % backspace vertically by one line
        \skip@ \parskip
        \advance \skip@ \ht\@ne
        \advance \skip@ \dp\@ne
        \advance \skip@ \dimen@i
        \vskip -\skip@
        \prevdepth \dimen3
    \else
        \prevdepth \dp\@ne
    \fi
    {\parindent \JumpIndentation \indent}%
    \ignorespaces
}

\makeatother

\setlength{\JumpIndentation}{.57\textwidth} % set as desired



\begin{document}

Let's begin with an ordinart paragraph.

\lipsum[1]

\StartJumpingPar
Now a ``jumping paragraph''.
\lipsum*[1]\Jump\lipsum*[2]

Another ordinary (\emph{i.e.}, ``non-jumping'') paragraph in between, consisting
of at least two lines of text.

\StartJumpingPar
Note that all ``jump'' positions\Jump are vertically aligned, as required.

\StartJumpingPar
If the horizontal position to jump to has already been passed,\Jump the
\verb|\Jump| commands jumps to the next line, as required too.

\StartJumpingPar
Let's try, this time, to get aaaaalmost to\Jump the point!  Now we try again, 
with just one more~``a''.

\StartJumpingPar
Let's try, this time, to get aaaaaalmost to\Jump the point!  Are you satisfied?

\EveryJumpingPar{\textbullet\ }

\StartJumpingPar
Moreover, you can use the token register \verb|\EveryJumpingPar| to customize 
the appearance of\Jump your ``jumping paragraphs''.

That's all, folks!

\end{document}

このコードによって生成される出力は次のとおりです。

これは答えへの最初の近似値とみなされるべきです。可能な機能強化を紹介する前に、OP のコメントを待ちます。

2番目の近似値

今回はという環境を定義しますJumpingParagraphs。この環境には以下が含まれている必要があります。のみ通常の段落のみを対象とします。この環境に含まれる各段落内では、この\Jumpコマンドを使用して、固定長で指定された水平位置にタブを移動できます\JumpIndentation。この\Jumpコマンドは、同じ段落内で無制限に使用できます。

\documentclass[a4paper]{article}
\usepackage[T1]{fontenc}
\usepackage{lipsum}

\makeatletter

\def\do#1{\@ifdefinable #1{\newdimen #1}}
% the above is because \newlength allocates a \skip
\do\JumpIndentation
\do\@JP@normal@indent
\do\@JP@prevpardepth

% To allow customization:
\@ifdefinable\EveryJumpingPar{
    \newtoks\EveryJumpingPar \EveryJumpingPar={}
}

\@ifdefinable\@JP@saved@par{} % just check that the name can be used
\newenvironment*{JumpingParagraphs}{%
    \@JP@normal@indent \parindent
    \let\@JP@saved@par\par
    \def\par{\@JP@par@close\@JP@start@paragraph}%
    \@JP@start@paragraph
}{%
    \@JP@par@close
}
\newcommand*\@JP@start@paragraph{%
    \@JP@par@open\@JP@normal@indent{\the\EveryJumpingPar}%
}
\newcommand*\@JP@par@open[2]{%
    \@JP@prevpardepth \prevdepth
    \setbox\z@ \vbox\bgroup
        \color@begingroup % not sure it's really necessary
        \parfillskip \@flushglue
        \prevdepth \@JP@prevpardepth
        {\parindent #1\indent #2}%
        \ignorespaces
}
\newcommand*\@JP@par@close{%
        \@JP@saved@par
        \global \dimen@i \prevdepth
        \color@endgroup
    \egroup
    \unvcopy\z@
    \prevdepth \dimen@i % for the moment
}
\newcommand*\Jump{%
    \@JP@par@close
    \setbox\z@ \vbox{%
        \unvbox\z@
        \setbox\z@ \lastbox % note that "\indent\par" yields at least one box
        \global \setbox\@ne \hbox{\unhbox\z@}%
        \global \dimen@i \lastskip % should be -- finger crossed! -- the 
                                   % interline glue above the last box
        \unskip \unpenalty % remove interline glue and widow penalty
        \setbox\z@ \lastbox % if non-void, assume it is penultimate line
        \global \dimen3 \ifvoid\z@
            \@JP@prevpardepth
        \else
            \dp\z@
        \fi
    }%
    \ifdim \wd\@ne<\JumpIndentation
        % backspace vertically by one line
        \skip@ \parskip
        \advance \skip@ \ht\@ne
        \advance \skip@ \dp\@ne
        \advance \skip@ \dimen@i
        \vskip -\skip@
        \prevdepth \dimen3
        \dimen@ \ht\@ne
    \else
        \prevdepth \dp\@ne
        \dimen@ \z@
    \fi
    \@JP@par@open\JumpIndentation{\vrule \@width\z@ \@height\dimen@}%
}

\makeatother

\setlength{\JumpIndentation}{.57\textwidth} % set as desired



\begin{document}

Let's begin with an ordinary paragraph.

\lipsum[1]

\begin{JumpingParagraphs}
% No empty lines here!
Now a ``jumping paragraph''.
\lipsum*[1]\Jump\lipsum*[2]
\Jump Regrettably, \verb|Overfull \hbox|'es might occur: this is almost
inevitable, given the fact that a line containing a ``jump'' places a double
constraint on the choice of the breakpoints.

Another ordinary (\emph{i.e.}, ``non-jumping'') paragraph in between, consisting
of at least two lines of text.  Note that it occurs \emph{within} a 
\texttt{JumpingParagraphs} environment.

Note that all ``jump'' positions\Jump are vertically aligned, as required.

If the horizontal position to jump to has already been passed,\Jump the
\verb|\Jump| commands jumps to the next line, as required too.

Let's try, this time, to get aaaaalmost to\Jump the point!  Now we try again, 
with just one more~``a''.

Let's try, this time, to get aaaaaalmost to\Jump the point!  Are you satisfied?

Moreover, you can use the token register \verb|\EveryJumpingPar| to customize 
the appearance of\Jump your ``jumping paragraphs''.  However, it must be set 
\emph{outside} of the \texttt{JumpingParagraphs} environment.

The \verb|\Jump| command can also be used\Jump several times\Jump within a
single paragraph.  And in-line mathematics (say, \( y=\sin(x) \)) may\Jump
occur, too.  As it is quite obvious, you can both jump \emph{to} math\Jump\(
y=\frac{1}{x} \), and \emph{from} math (the last equation is better
written as \( y=1/x \),\Jump isn't it?).  It is also possible to use unusually
high formulas, as in \( \displaystyle
\biggl(\frac{1}{x}+\frac{1}{y}\biggr)\biggl(\frac{1}{x}-\frac{1}{y}\biggr) \),
and, even in case of a\Jump jump, the spacing will be correct!

But alas, \( \displaystyle \frac{x}{y}+\frac{y}{x}=\frac{x^{2}+y^{2}}{xy} \)
\Jump fails miserably: the spacing is correct for the second half of the line,
but not for the first.  You should keep in mind this limitation.  On the other
hand,\Jump \( \displaystyle \frac{x}{y}+\frac{y}{x}=\frac{x^{2}+y^{2}}{xy} \)
works in a more or less acceptable way, as you can see.

\textbf{Main limitation:} a \texttt{JumpingParagraphs} environment cannot
contain \emph{anything} but ordinary paragraphs.
% No empty lines here!
\end{JumpingParagraphs}

This paragraph is outside the \texttt{JumpingParagraphs} environment.  Note 
that line spacing is correct

\bigbreak

\EveryJumpingPar = {\textbullet\ }

We have just set \verb|\EveryJumpingPar| to contain \verb*|\textbullet\ |.  Now 
we start another \texttt{JumpingParagraphs} environment.

\begin{JumpingParagraphs}
    $X$~misses something.
    \Jump What is $X$ missing?

    This sentence misses~$X$.
    \Jump What is missing?

    This sentence $X$ something.
    \Jump What is missing?
\end{JumpingParagraphs}

That's all, folks!

\end{document}

3番目（および4番目）の近似値

2 番目の近似では、入力に複数のトークンが出現するケースを正しく処理できませんでした。これは、余分な空白行が原因である可能性があるためです。3 番目の近似では、マクロをトリガーする\par手段を使用してこの欠陥を修正し、トークンレジスタも追加します。\everypar\@JP@start@paragraph\EveryJump

\documentclass[a4paper]{article}
\usepackage[T1]{fontenc}
\usepackage{lipsum}
\usepackage{color}

\definecolor{subdued}{gray}{.75}

\makeatletter

\def\do#1{\@ifdefinable #1{\newdimen #1}}
% the above is because \newlength allocates a \skip
\do\JumpIndentation
\do\@JP@normal@indent
\do\@JP@prevpardepth

% To allow customization:
\def\do#1{\@ifdefinable #1{\newtoks #1#1{}}}
\do\EveryJumpingPar
\do\EveryJump

\@ifdefinable\@JP@saved@par{} % just check that the name can be used
\@ifdefinable\@JP@next{}
\newenvironment*{JumpingParagraphs}{%
    \everypar{\@JP@start@paragraph}%
}{%
    \par
}
\newcommand*\@JP@start@paragraph{%
    \@JP@normal@indent \parindent
    \let\@JP@saved@par\par
    \setbox\z@ \lastbox % get indentation box
    \@@par % return to vertical mode with an empty paragraph
    \ifvoid\z@
        \let \@JP@next \noindent
    \else
        \let \@JP@next \indent
    \fi
    \@JP@par@open\@JP@next\@JP@normal@indent{\the\EveryJumpingPar}%
}
\newcommand*\@JP@par@open[3]{%
    % #1 <- either "\indent" or "\noindent"
    % #2 <- indentation amount
    % #3 <- tokens to insert at the beginning of the paragraph
    \@JP@prevpardepth \prevdepth
    \setbox\z@ \vbox\bgroup
        \color@begingroup % not sure it's really necessary
        \parfillskip \@flushglue
        \everypar{}%
        \let\par\@JP@par@close
        \prevdepth \@JP@prevpardepth
        {\parindent #2#1#3}%
        \ignorespaces
}
\newcommand*\@JP@par@close{%
        \@JP@saved@par
        \global \dimen@i \prevdepth
        \color@endgroup
    \egroup
    \unvcopy\z@
    \prevdepth \dimen@i % for the moment
}
\newcommand*\Jump{%
    \@JP@par@close
    \setbox\z@ \vbox{%
        \unvbox\z@
        \setbox\z@ \lastbox % note that "\indent\par" yields at least one box
        \global \setbox\@ne \hbox{\unhbox\z@}%
        \global \skip\@ne \lastskip % should be -- finger crossed! -- the 
                                    % interline glue above the last box
        \unskip \unpenalty % remove interline glue and widow penalty
        \setbox\z@ \lastbox % if non-void, assume it is penultimate line
        \global \dimen@i \ifvoid\z@
            \@JP@prevpardepth
        \else
            \dp\z@
        \fi
    }%
    \ifdim \wd\@ne<\JumpIndentation
        % backspace vertically by one line
        % Note: no "\parskip" glue is added in internal vertical mode when the
        %       current list is empty, so we don't need to compensate for it!
        \skip@ \skip\@ne
        \advance \skip@ \ht\@ne
        \advance \skip@ \dp\@ne
        \vskip -\skip@
        \prevdepth \dimen@i
        \dimen@   \ht\@ne
        \dimen@ii \dp\@ne
    \else
        \prevdepth \dp\@ne
        \dimen@   \z@
        \dimen@ii \z@
    \fi
    \@JP@par@open\indent\JumpIndentation{%
        % It was trivial to fix this one!
        \vrule \@width\z@ \@height\dimen@ \@depth\dimen@ii \relax
        % Now "\relax" is no longer necessary, actually.
        \the\EveryJump
    }%
}

\makeatother

\setlength{\JumpIndentation}{.57\textwidth} % set as desired



\begin{document}

Let's begin with an ordinary paragraph.

\lipsum[1]

\begin{JumpingParagraphs}

% Empty lines are now allowed here.

Now a ``jumping paragraph''.
\lipsum*[1]\Jump\lipsum*[2]
\Jump Regrettably,\hfil\verb|Overfull \hbox|'es might occur: this is almost
inevitable, given the fact that a line containing a ``jump'' places a double
constraint on the choice of the breakpoints.

% Multiple blank lines in the input are now handled correctly:


Another ordinary (\emph{i.e.}, ``non-jumping'') paragraph in between, consisting
of at least two lines of text.  Note that it occurs \emph{within} a 
\texttt{JumpingParagraphs} environment.

Note that all ``jump'' positions\Jump are vertically aligned, as required.

If the horizontal position to jump to has already been passed,\Jump the
\verb|\Jump| commands jumps to the next line, as required too.

Let's try, this time, to get aaaaalmost to\Jump the point!  Now we try again, 
with just one more~``a''.

Let's try, this time, to get aaaaaalmost to\Jump the point!  Are you satisfied?

\EveryJumpingPar = {\textbullet\ }

Moreover, you can use the token register \verb|\EveryJumpingPar| to customize 
the appearance of\Jump your ``jumping paragraphs''.

\EveryJump = {\textasteriskcentered\ }

In the same way, the \verb|\EveryJump| tokens\Jump are inserted each time a
\verb|\Jump| command\Jump is executed, as it is exemplified by this same\Jump
paragraph.

These token registers can now also be set inside the \texttt{JumpingParagraphs}
environment itself.

\EveryJumpingPar = {}
\EveryJump = {}

The \verb|\Jump| command can also be used\Jump several times\Jump within a
single paragraph.  And in-line mathematics (say, \( y=\sin(x) \)) may\Jump
occur, too.  As it is quite obvious, you can both jump \emph{to} math\Jump\(
y=\frac{1}{x} \), and \emph{from} math (the last equation is better
written as \( y=1/x \),\Jump isn't it?).  It is also possible to use unusually
high formulas, as in \( \displaystyle
\biggl(\frac{1}{x}+\frac{1}{y}\biggr)\biggl(\frac{1}{x}-\frac{1}{y}\biggr) \),
and, even in case of a\Jump jump, the spacing will be correct!

And now, also \( \displaystyle \frac{x}{y}+\frac{y}{x}=\frac{x^{2}+y^{2}}{xy} \)
\rlap{\color{subdued}sminnief}\Jump functions with absolute perfection: line
spacing is correct both for the first half of the line and for the second one.
On the other hand,\Jump \( \displaystyle
\frac{x}{y}+\frac{y}{x}=\frac{x^{2}+y^{2}}{xy} \) works in a less satisfactory
way, as you can see.  You should keep in mind this limitation.

\textbf{Main limitation:} a \texttt{JumpingParagraphs} environment cannot
contain \emph{anything} but ordinary paragraphs.

\noindent Note that \verb|\noindent| commands\Jump \emph{are} honored: indeed,
this has now been corrected (in an update).

\begingroup

\setlength{\parindent}{4em}

Also, \verb|\parindent| may now vary\Jump from one paragraph\Jump to another:
I~had completely overlooked this in the previous versions!

Another paragraph with the same\Jump different indentation.

\endgroup

Back to previous indentation,\Jump with a jump.

One last paragraph without jumps.

% Empty lines are now allowed here.

\end{JumpingParagraphs}

This paragraph is outside the \texttt{JumpingParagraphs} environment.  Note 
that line spacing is correct.

\bigbreak

\newcounter{sentence}
\renewcommand*{\thesentence}{{\normalfont (\textit{\alph{sentence}})}}
\EveryJumpingPar = {\refstepcounter{sentence}\llap{\thesentence\ }}
\EveryJump = {\textbullet\ }

We have just set \verb|\EveryJumpingPar| to contain a numbered label, which is
automatically stepped, and \verb|\EveryJump| to contain \verb*|\textbullet\ |.
Now we start another \texttt{JumpingParagraphs} environment.

\begin{JumpingParagraphs}
    \setlength{\parskip}{\medskipamount}

    $X$~misses something.
    \Jump What is $X$ missing?

    This sentence misses~$X$.
    \Jump What is missing?

    This sentence $X$ something.
    \Jump What is missing?

    Now, get close to the jump destination...
    \Jump to be sure that the baselines are lined up properly.
\end{JumpingParagraphs}

That's all, folks!

\end{document}

今回は出力も表示します:

を使用するソリューションはzref-savepos確かにこれよりも柔軟です。しかし、および\pdfsavepos関連プリミティブを -time で操作する必要\shipoutもなく、2 パスコンパイルも必要なく、ボックスとグルーを操作するだけで、古き良き「プレーン TeX スタイル」の方法で目標を完全に達成できる方法を示すことは興味深いかもしれません。

私ははっきり認めなければならない、この質問もっている捕まりました！私は何度も回答を改良しており、最終的には完全なパッケージを投稿することになるでしょう...

Question 4

段落の場合、\parboxテキストをジャンプするためにを使用する解決策を見つけました。これがより良いアイデアかどうかはわかりません\hbox。これは、段落の最初の行でジャンプが発生するケースを解決します。

\newlength{\jumplength}
\setlength{\jumplength}{20em} % adjust manually
\newcommand{\jumping}[1]{\parbox[l]{\jumplength}{#1}}

\jumping{This paragraph horizontally jumps}\textbullet\ at some point
for some reason. The rest of the text can span other the next lines.

\jumping{This paragraph wants its jump to land}\textbullet\ exactly at  
the same absolute horizontal position as the jump from the above paragraph.

\jumping{~}\textbullet\ jumping directly to the point is also an option.

正確さを期すために、ヘイコの2番目の答えは次のようになるべきである。

\settowidth{\LeftPartLength}{%
My friends invited X to the party.%
}

私のニーズに正確に対応するため、少し異なる結果が得られます。

Answer

段落の場合、\parboxテキストをジャンプするためにを使用する解決策を見つけました。これがより良いアイデアかどうかはわかりません\hbox。これは、段落の最初の行でジャンプが発生するケースを解決します。

\newlength{\jumplength}
\setlength{\jumplength}{20em} % adjust manually
\newcommand{\jumping}[1]{\parbox[l]{\jumplength}{#1}}

\jumping{This paragraph horizontally jumps}\textbullet\ at some point
for some reason. The rest of the text can span other the next lines.

\jumping{This paragraph wants its jump to land}\textbullet\ exactly at  
the same absolute horizontal position as the jump from the above paragraph.

\jumping{~}\textbullet\ jumping directly to the point is also an option.

正確さを期すために、ヘイコの2番目の答えは次のようになるべきである。

\settowidth{\LeftPartLength}{%
My friends invited X to the party.%
}

私のニーズに正確に対応するため、少し異なる結果が得られます。

最初の近似値

答え1

左側のスペースを修正したバージョン

答え2

編集

答え3

最初の近似値

2番目の近似値

3番目（および4番目）の近似値

答え4

関連情報