お世話になります。

早速ですが，jsarticle でrectboxを使うと，

! Missing number, treated as zero.
<to be read again> 
                   <
l.6  \end{rectbox}

となります。emathPS環境では改善されているようですが……。
ご指導お願いします。


ソースとログは以下の通りです。
%
%-------sample.tex
%
\documentclass[11pt]{jsarticle}
\usepackage{emathPb}
\begin{document}
 \begin{rectbox}[item={~ああ~}]
  あいう
 \end{rectbox}
\end{document}

%
%---log file
%
This is pTeX, Version 3.1415926-p3.1.11 (sjis) (Web2C 2010/dev) (format=platex 2010.3.30)  24 MAY 2010 13:05
 \write18 enabled.
 %&-line parsing enabled.
**sample14.tex
(./sample14.tex
pLaTeX2e <2006/11/10>+0 (based on LaTeX2e <2009/09/24> patch level 0)
Babel <v3.8l> and hyphenation patterns for english, usenglishmax, ukenglish, ba
sque, bulgarian, coptic, welsh, czech, slovak, german, ngerman, danish, esperan
to, spanish, catalan, galician, estonian, farsi, finnish, french, irish, greek,
 monogreek, ancientgreek, croatian, hungarian, interlingua, ibycus, bahasa, ice
landic, italian, latin, mongolian, dutch, norsk, polish, portuguese, pinyin, ro
manian, russian, slovenian, samin, uppersorbian, serbian, swedish, turkish, ukr
ainian, dumylang, nohyphenation, loaded.
(c:/ptex/share/texmf/tex/platex/js/jsarticle.cls
Document Class: jsarticle 2010/03/14 okumura
LaTeX Info: Redefining \rmfamily on input line 332.
LaTeX Info: Redefining \sffamily on input line 335.
LaTeX Info: Redefining \ttfamily on input line 338.
\symmincho=\mathgroup4
LaTeX Font Info:    Overwriting symbol font `mincho' in version `bold'
(Font)                  JY1/mc/m/n --> JY1/gt/m/n on input line 403.
LaTeX Font Info:    Font shape `JT1/mc/m/n' will be
(Font)              scaled to size 9.60999pt on input line 592.
LaTeX Font Info:    Font shape `JY1/mc/m/n' will be
(Font)              scaled to size 9.60999pt on input line 592.
\fullwidth=\dimen118
LaTeX Font Info:    Font shape `JT1/mc/m/n' will be
(Font)              scaled to size 7.68799pt on input line 739.
LaTeX Font Info:    Font shape `JY1/mc/m/n' will be
(Font)              scaled to size 7.68799pt on input line 739.
\c@part=\count81
\c@section=\count82
\c@subsection=\count83
\c@subsubsection=\count84
\c@paragraph=\count85
\c@subparagraph=\count86
\@abstractbox=\box41
\c@figure=\count87
\c@table=\count88
\abovecaptionskip=\skip41
\belowcaptionskip=\skip42
\@lnumwidth=\dimen119
\bibindent=\dimen120
LaTeX Info: Redefining \TeX on input line 1693.
LaTeX Info: Redefining \LaTeX on input line 1719.
LaTeX Info: Redefining \LaTeXe on input line 1744.
\heisei=\count89
) (c:/ptex/share/texmf/tex/platex/misc/emath/emathPb.sty
Package: emathPb 2010/03/21 v 0.36β

(c:/ptex/share/texmf/tex/platex/misc/emath/emathPh.sty
Package: emathPh 2010/02/05 v 3.80

(c:/ptex/share/texmf/tex/latex/eepic/epic.sty
Enhancements to Picture Environment. Version 1.2 - Released June 1, 1986
\@@multicnt=\count90
\d@lta=\count91
\@delta=\dimen121
\@@delta=\dimen122
\@gridcnt=\count92
\@joinkind=\count93
\@dotgap=\dimen123
\@ddotgap=\dimen124
\@x@diff=\count94
\@y@diff=\count95
\x@diff=\dimen125
\y@diff=\dimen126
\@dotbox=\box42
\num@segments=\count96
\num@segmentsi=\count97
\@datafile=\read1
) (c:/ptex/share/texmf/tex/latex/eepic/eepic.sty
Extension to Epic and LaTeX. Version 1.1b - Released Febrary 7, 1988
\@gphlinewidth=\count98
\@eepictcnt=\count99
\@tempdimc=\dimen127
\maxovaldiam=\dimen128
\@filltype=\box43
) (c:/ptex/share/texmf/tex/platex/misc/emath/emath.sty
\EM@boxa=\box44
\bsityuubox=\box45
Package: emath 2010/03/13 v2.21 初等数学マクロパッケージ

(c:/ptex/share/texmf/tex/platex/misc/emath/emath2e.sty
(c:/ptex/share/texmf/tex/latex/amslatex/amsmath.sty
Package: amsmath 2000/07/18 v2.13 AMS math features
\@mathmargin=\skip43

For additional information on amsmath, use the `?' option.
(c:/ptex/share/texmf/tex/latex/amslatex/amstext.sty
Package: amstext 2000/06/29 v2.01

(c:/ptex/share/texmf/tex/latex/amslatex/amsgen.sty
File: amsgen.sty 1999/11/30 v2.0
\@emptytoks=\toks15
\ex@=\dimen129
))
(c:/ptex/share/texmf/tex/latex/amslatex/amsbsy.sty
Package: amsbsy 1999/11/29 v1.2d
\pmbraise@=\dimen130
)
(c:/ptex/share/texmf/tex/latex/amslatex/amsopn.sty
Package: amsopn 1999/12/14 v2.01 operator names
)
\inf@bad=\count100
LaTeX Info: Redefining \frac on input line 211.
\uproot@=\count101
\leftroot@=\count102
LaTeX Info: Redefining \overline on input line 307.
\classnum@=\count103
\DOTSCASE@=\count104
LaTeX Info: Redefining \ldots on input line 379.
LaTeX Info: Redefining \dots on input line 382.
LaTeX Info: Redefining \cdots on input line 467.
\Mathstrutbox@=\box46
\strutbox@=\box47
\big@size=\dimen131
LaTeX Font Info:    Redeclaring font encoding OML on input line 567.
LaTeX Font Info:    Redeclaring font encoding OMS on input line 568.
\macc@depth=\count105
\c@MaxMatrixCols=\count106
\dotsspace@=\muskip10
\c@parentequation=\count107
\dspbrk@lvl=\count108
\tag@help=\toks16
\row@=\count109
\column@=\count110
\maxfields@=\count111
\andhelp@=\toks17
\eqnshift@=\dimen132
\alignsep@=\dimen133
\tagshift@=\dimen134
\tagwidth@=\dimen135
\totwidth@=\dimen136
\lineht@=\dimen137
\@envbody=\toks18
\multlinegap=\skip44
\multlinetaggap=\skip45
\mathdisplay@stack=\toks19
LaTeX Info: Redefining \[ on input line 2666.
LaTeX Info: Redefining \] on input line 2667.
)
(c:/ptex/share/texmf/tex/latex/amsfonts/amssymb.sty
Package: amssymb 2009/06/22 v3.00

(c:/ptex/share/texmf/tex/latex/amsfonts/amsfonts.sty
Package: amsfonts 2009/06/22 v3.00 Basic AMSFonts support
\symAMSa=\mathgroup5
\symAMSb=\mathgroup6
LaTeX Font Info:    Overwriting math alphabet `\mathfrak' in version `bold'
(Font)                  U/euf/m/n --> U/euf/b/n on input line 96.
))
(c:/ptex/share/texmf/tex/platex/misc/emath/emathC.sty
Package: emathC 2010/02/22 v0.72

(c:/ptex/share/texmf/tex/latex/tools/calc.sty
Package: calc 2007/08/22 v4.3 Infix arithmetic (KKT,FJ)
\calc@Acount=\count112
\calc@Bcount=\count113
\calc@Adimen=\dimen138
\calc@Bdimen=\dimen139
\calc@Askip=\skip46
\calc@Bskip=\skip47
LaTeX Info: Redefining \setlength on input line 76.
LaTeX Info: Redefining \addtolength on input line 77.
\calc@Ccount=\count114
\calc@Cskip=\skip48
)
(c:/ptex/share/texmf/tex/latex/graphics/keyval.sty
Package: keyval 1999/03/16 v1.13 key=value parser (DPC)
\KV@toks@=\toks20
)
(c:/ptex/share/texmf/tex/latex/base/ifthen.sty
Package: ifthen 2001/05/26 v1.1c Standard LaTeX ifthen package (DPC)
)
\c@tempcnta=\count115
\templa=\dimen140
\emath@toks@=\toks21
\Sett@width=\dimen141
)
(c:/ptex/share/texmf/tex/platex/misc/emath/emathE.sty
Package: emathE 2010/03/21 v1.06 拡張enumerate

(c:/ptex/share/texmf/tex/platex/misc/emath/emathEc.sty
Package: emathEc 2010/03/21 v0.10

(c:/ptex/share/texmf/tex/latex/tools/enumerate.sty
Package: enumerate 1999/03/05 v3.00 enumerate extensions (DPC)
\@enLab=\toks22
)
(c:/ptex/share/texmf/tex/platex/misc/emath/jquote.sty
Package: jquote 2009/10/21 v0.11
)
(c:/ptex/share/texmf/tex/platex/misc/emath/emathK.sty)
\kizami@ti=\count116
\syoki@ti=\count117
)
\c@Enumi=\count118
\c@Enumii=\count119
\c@Enumiii=\count120
\c@Enumiv=\count121
\tkn@Enum@ang=\toks23
\tkn@Enum@opt=\toks24
\emtokena=\toks25
))
\c@marginpar=\count122
\templb=\dimen142
\templc=\dimen143
\tempboxa=\box48
\tempboxb=\box49
\EMc@hizyosuu=\count123
\EMc@syou=\count124
\EMc@zyo@amari=\count125
\GCM=\count126
\zyo@@c=\count127
\hizyo@@c=\count128
\wari@@cnt=\count129
\wari@@cmax=\count130
\gyou@@c=\count131
\hidari@@p=\count132
\migi@@p=\count133
LaTeX Info: Redefining \to on input line 1864.
\renritu@hidariyohaku=\dimen144
LaTeX Info: Redefining \mathstrut on input line 2906.
LaTeX Font Info:    Font shape `JY1/mc/m/n' will be
(Font)              scaled to size 6.72699pt on input line 2957.
LaTeX Font Info:    Font shape `JY1/mc/m/n' will be
(Font)              scaled to size 4.805pt on input line 2957.
LaTeX Font Info:    Try loading font information for U+msa on input line 2957.

(c:/ptex/share/texmf/tex/latex/amsfonts/umsa.fd
File: umsa.fd 2009/06/22 v3.00 AMS symbols A
)
LaTeX Font Info:    Try loading font information for U+msb on input line 2957.

(c:/ptex/share/texmf/tex/latex/amsfonts/umsb.fd
File: umsb.fd 2009/06/22 v3.00 AMS symbols B
)
\@ltxlinelen=\dimen145
\fileophndl=\read2
)
(c:/ptex/share/texmf/tex/latex/graphics/trig.sty
Package: trig 1999/03/16 v1.09 sin cos tan (DPC)
)
\@tempdimd=\dimen146
\henko@box=\box50
\DHS@seq=\toks26
\yasen@toks=\toks27
\tenretu@namae=\toks28
\namae@opt=\toks29
\@tmpla=\dimen147
LaTeX Info: Redefining \Deruta on input line 10552.
)
\rectbox@item@box=\box51
\rectbox@bitem@box=\box52
\c@enumrectbox=\count134
\c@rectboxenum=\count135
\rectb@x=\box53
\mekureb@x=\box54
\em@whndl=\write3
\brace@box=\box55
\ps@box=\box56
\psfboxW=\dimen148
\psfboxV=\dimen149
) (./sample14.aux)
\openout1 = `sample14.aux'.

LaTeX Font Info:    Checking defaults for OML/cmm/m/it on input line 3.
LaTeX Font Info:    ... okay on input line 3.
LaTeX Font Info:    Checking defaults for T1/cmr/m/n on input line 3.
LaTeX Font Info:    ... okay on input line 3.
LaTeX Font Info:    Checking defaults for OT1/cmr/m/n on input line 3.
LaTeX Font Info:    ... okay on input line 3.
LaTeX Font Info:    Checking defaults for OMS/cmsy/m/n on input line 3.
LaTeX Font Info:    ... okay on input line 3.
LaTeX Font Info:    Checking defaults for OMX/cmex/m/n on input line 3.
LaTeX Font Info:    ... okay on input line 3.
LaTeX Font Info:    Checking defaults for U/cmr/m/n on input line 3.
LaTeX Font Info:    ... okay on input line 3.
LaTeX Font Info:    Checking defaults for JY1/mc/m/n on input line 3.
LaTeX Font Info:    ... okay on input line 3.
LaTeX Font Info:    Checking defaults for JT1/mc/m/n on input line 3.
LaTeX Font Info:    ... okay on input line 3.

! Missing number, treated as zero.
<to be read again> 
                   <
l.6  \end{rectbox}
                  
? r
OK, entering \nonstopmode...
! Missing number, treated as zero.
<to be read again> 
                   \relax 
l.6  \end{rectbox}
                  
A number should have been here; I inserted `0'.
(If you can't figure out why I needed to see a number,
look up `weird error' in the index to The TeXbook.)

[1

] (./sample14.aux) ) 
Here is how much of TeX's memory you used:
 6643 strings out of 494369
 66003 string characters out of 3170657
 194683 words of memory out of 1500000
 9989 multiletter control sequences out of 15000+200000
 10255 words of font info for 46 fonts, out of 2000000 for 2000
 683 hyphenation exceptions out of 8191
 57i,8n,34p,390b,353s stack positions out of 3000i,500n,5000p,500000b,5000s

Output written on sample14.dvi (1 page, 392 bytes).

▼関連発言
│
└◆8868:rectbox環境とjsarticle [NOBU] 05/24 13:11
　└◆8869:Re:rectbox環境とjsarticle [tDB] 05/24 14:15
　　└◆8870:Re[2]:rectbox環境とjsarticle [NOBU] 05/24 14:19<-last