[Xy-pic] Vertical alignment in xymatrix

[Vadim Yu. Radionov]

Hi, Michael and others!

Consider these lines for solutions to mentioned problems.

Entrymodifiers is a weird thing --- i faild to apply a modifier to
a single cell later.  But it aligns the arrow in the axis (actually,
shifts the entries).

@!R0 at the beginning of \xymatrix guarantees the fixed \xymatrixrowsep
distance between entries' centers, thus you can move it up by
the same amount.

Actually, i made no tests of the latter, just guessed.

As for punctuation, i use to put it in \rlap{} in the last cell.

\documentclass[12pt]{book}
\usepackage[matrix,arrow]{xy}
\entrymodifiers={+!!<0pt,\fontdimen22\textfont2>}
\xymatrixrowsep={3pc}
\xymatrixcolsep={3pc}

\begin{document}
This is a test \raisebox{3pc}{$\xymatrix@!R0{& C \\ A_1^1 \ar[r]\ar[ur] &
B \ar[u]}$}.
\end{document}

Yours, Vadim