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Diffstat (limited to 'doc/if.n')
| -rw-r--r-- | doc/if.n | 26 |
1 files changed, 17 insertions, 9 deletions
@@ -38,43 +38,51 @@ The return value from the command is the result of the body script that was executed, or an empty string if none of the expressions was non-zero and there was no \fIbodyN\fR. .SH EXAMPLES +.PP A simple conditional: +.PP .CS \fBif\fR {$vbl == 1} { puts "vbl is one" } .CE .PP With an \fBelse\fR-clause: +.PP .CS \fBif\fR {$vbl == 1} { - puts "vbl is one" + puts "vbl is one" } \fBelse\fR { - puts "vbl is not one" + puts "vbl is not one" } .CE .PP With an \fBelseif\fR-clause too: +.PP .CS \fBif\fR {$vbl == 1} { - puts "vbl is one" + puts "vbl is one" } \fBelseif\fR {$vbl == 2} { - puts "vbl is two" + puts "vbl is two" } \fBelse\fR { - puts "vbl is not one or two" + puts "vbl is not one or two" } .CE .PP Remember, expressions can be multi-line, but in that case it can be a good idea to use the optional \fBthen\fR keyword for clarity: +.PP .CS \fBif\fR { - $vbl == 1 || $vbl == 2 || $vbl == 3 + $vbl == 1 + || $vbl == 2 + || $vbl == 3 } \fBthen\fR { - puts "vbl is one, two or three" + puts "vbl is one, two or three" } .CE - .SH "SEE ALSO" expr(n), for(n), foreach(n) - .SH KEYWORDS boolean, conditional, else, false, if, true +'\" Local Variables: +'\" mode: nroff +'\" End: |