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+======Synopsis:======
+[[fec]] (<string>) <variable> [<variable> ...] { <actions> } \\
+[[fec]] <source_variable> <variable> [<variable> ...] { <actions> }
+======Description:======
+The fec command works in the same way as [[fe]], except that it iterates over
+each character rather than each word.
+Leading whitespace between the opening parenthesis and first non-whitespace
+character and trailing whitespace between the final non-whitespace character
+and the closing parenthesis is ignored.  This is probably not the ideal
+behavior, but it is backwards compatable.
+The variable list that you pass to the fec command are [[local]] variables, and
+not global variables.  These variables continue to be visible after the fec
+command finishes.