(guile.info.gz) begin

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(guile.info.gz) if cond case

 
 26.1 Evaluating a Sequence of Expressions
 =========================================
 
 `begin' is used for grouping several expression together so that they
 syntactically are treated as if they were one expression.  This is
 particularly important when syntactic expressions are used which only
 allow one expression, but the programmer wants to use more than one
 expression in that place.  As an example, consider the conditional
 expression below:
 
      (if (> x 0)
          (begin (display "greater") (newline)))
 
    If the two calls to `display' and `newline' were not embedded in a
 `begin'-statement, the call to `newline' would get misinterpreted as
 the else-branch of the `if'-expression.
 
  -- syntax: begin expr1 expr2 ...
      The expression(s) are evaluated in left-to-right order and the
      value of the last expression is returned as the value of the
      `begin'-expression.  This expression type is used when the
      expressions before the last one are evaluated for their side
      effects.
 

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(guile.info.gz) if cond case