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!! +exec+ +var+ +string+
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tit:positionof
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type:$type_both
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alias:position, positions
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syntax:!positionof [``type''] ``s'' in ``string''
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mean:Reports the positions of the object ``s'' in ``string''. <br/>\
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  ``type'' can be <span class="tt">char</span>, <span class="tt">word</span>, <span class="tt">item</span> or\
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  <span class="tt">line</span>. If it is specified, then the comparison only takes place for\
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  corresponding objects of ``string'' which are identical to ``s''. <br/>\
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  The output of the command is a list of positions (char, word, item or\
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  line, according to the value of ``type'') where ``s'' is found in ``string''. <br/>\
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  If ``type'' is missing, then ``s'' is searched in ``string'' as a substring,\
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  and the positions reported are character positions.