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Vincent Belaïche authored
When using a lambda expression printer function the user should be free to format differently a really empty cell, ie. containing nil, from a cell containing an empty string "". * ses.el (ses-call-printer): Replace `(or value "")' by just `value' in the case of a lambda expression printer function. * ses.texi (Printer functions): Add example and description about lambda expression printer function handling all the possible values, including unexpected ones.
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