diff options
| author | Ondrej Zajicek <santiago@crfreenet.org> | 2011-03-23 12:49:53 +0100 |
|---|---|---|
| committer | Ondrej Zajicek <santiago@crfreenet.org> | 2011-03-23 12:49:53 +0100 |
| commit | 26d92bb8921ac4e022cdc88bde8fc7bc617f8766 (patch) | |
| tree | 5e900b466e46e1848b4d2bd98a5894cf6214b08b /doc | |
| parent | 6bcef22580010aec695fb2b559c7b33ee00261b0 (diff) | |
A hack to distinguish if..else from else: in case.
The old BIRD grammar needs two lookaheads to distinguish if..else from
else: in case, which caused the parser to fail on some combinations of
both expressions.
This patch replaces two tokens 'else' ':' by one token 'else:' to fix
that.
Diffstat (limited to 'doc')
| -rw-r--r-- | doc/bird.sgml | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/doc/bird.sgml b/doc/bird.sgml index 7b6e97ab..b5bdb932 100644 --- a/doc/bird.sgml +++ b/doc/bird.sgml @@ -837,7 +837,7 @@ prefix and prefix (returning true if first prefix is more specific than second o <M>command_1</M>; <M>command_2</M>; <M>...</M> }</cf> instead of either command. The <cf>else</cf> clause may be omitted. If the <cf><m>boolean expression</m></cf> is true, <cf><m>command1</m></cf> is executed, otherwise <cf><m>command2</m></cf> is executed. -<p>The <cf>case</cf> is similar to case from Pascal. Syntax is <cf>case <m/expr/ { else | +<p>The <cf>case</cf> is similar to case from Pascal. Syntax is <cf>case <m/expr/ { else: | <m/num_or_prefix [ .. num_or_prefix]/: <m/statement/ ; [ ... ] }</cf>. The expression after <cf>case</cf> can be of any type which can be on the left side of the ˜ operator and anything that could be a member of a set is allowed before <cf/:/. Multiple commands are allowed without <cf/{}/ grouping. |