Removing latex command delimiters with sed

[filimon]

Hi all,
I have a latex file and I want to replace all occurences of \eng{<utf8 characters>} with <utf8 characters>, that is remove the tex command with its delimiters \eng{} which is around some text. I tried
sed 's/\eng{[:alpha:]*}/&/g' input.tex > output.tex
but does not work at all while
sed 's/\eng//g' input.tex > output.tex
does only remove the \eng{, leaving the trailing } after the text. Any help would be appreciated!
filimon

[lomcevak]

sed 's/\\eng{\(.*\)}/\1/'

[filimon]

Almost there, I need to change this so that it stops at the first } and does this for multiple \eng{...} in a line. My first change was
sed 's/\\eng{\(.*\)}/\1/g'
but this doesn't do it completely either. How to make sed get the first } instead of the last one in the line? Thanks,
filimon