version 1.25, 2003/12/21 11:18:25 |
version 1.26, 2004/04/20 19:44:51 |
Line 101 otherwise the matching operator returns |
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Line 101 otherwise the matching operator returns |
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If the match fails and the pattern contains a regular expression subexpression |
If the match fails and the pattern contains a regular expression subexpression |
the null string is returned; |
the null string is returned; |
otherwise 0. |
otherwise 0. |
.It Ar "( " expr Li " )" |
.It "( " Ar expr Li " )" |
Parentheses are used for grouping in the usual manner. |
Parentheses are used for grouping in the usual manner. |
.El |
.El |
.Pp |
.Pp |
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Additionally, following keywords are recognized: |
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.Bl -tag -width indent |
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.It length Ar expr |
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Returns length of specified string in bytes. |
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.El |
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.Pp |
Operator precedence (from highest to lowest): |
Operator precedence (from highest to lowest): |
.Bl -enum -compact -offset indent |
.Bl -enum -compact -offset indent |
.It |
.It |
parentheses |
parentheses |
.It |
.It |
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length |
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.It |
.Dq \&: |
.Dq \&: |
.It |
.It |
.Dq "*" , |
.Dq "*" , |
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.Nm |
.Nm |
utility conforms to |
utility conforms to |
.St -p1003.2 . |
.St -p1003.2 . |
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The |
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.Ar length |
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keyword is an extension for compatibility with GNU |
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.Nm . |
.Sh AUTHORS |
.Sh AUTHORS |
Original implementation was written by |
Original implementation was written by |
.An J.T. Conklin |
.An J.T. Conklin |