Khaled Hosny wrote:
Its \textbf{}, \textsf{} etc. (even plain TeX \bf is not a macro but a
font CS and it to be used as {\bf Some Text}).
Sorry Khaled, \bf /is/ a macro :
C:\Documents and Settings\Administrator>tex
This is TeX, Version 3.1415926 (Web2C 2010)
**\message {\meaning \bf}
macro:->\fam \bffam \tenbf
*
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