Returns a regexp that matches a node-list with
respect to a
search list x if the node-list can be split into sublists
s1, s2,, sn such
that regexpi matches si with respect
to the search list
x for 1 i n and such that si
immediately precedes si+1 with respect to x for 1
i n-1.
(regexp-or regexp1 regexp2 regexpn)
Returns a regexp that matches a node-list with respect to a
search list x if, for some i such that 1 i n, the node-list matches regexpi with respect to x.
(regexp-and regexp1 regexp2 regexpn)
Returns a regexp that matches a node-list with respect
to a search list x if, for every i such that 1 i n, the node-list matches regexpi with respect to x.
(regexp-rep regexp)
Returns a regexp that matches a node-list with respect to a
search list x if the node-list is empty or if there is some integer
n 1 such that the node-list can be split into sublists
s1,s2,,sn
such that si matches regexp for each i such that 1
i n and such that si immediately
precedes si+1 with respect to x for each i such that
1 i n-1.
(regexp-plus regexp)
Returns a regexp that matches a node-list with
respect to a search list x if there is some integer n 1
such that the node-list can be split into sublists
s1, s2,,sn such that
si matches regexp for each i such that 1 i n and such that si immediately precedes si+1
with respect to x for each i such that 1 i n-1.
(regexp-opt regexp)
Returns a regexp that matches a node-list with respect
to a search list x if either the node-list is empty or the node-list
matches regexp with respect to x.
(regexp-range regexp k1 k2)
Returns a regexp that matches a node-list with respect to a
search list x if there is some integer n with k1 n k2 such that the node-list can be split into sublists
s1,s2,,sn
such that si matches regexp for each i such that 1
i n and such that si immediately
precedes si+1 with respect to x for each i such that
1 i n-1. If k1 is zero, then the returned regexp
shall match the empty node-list.
(string->regexp string)
Returns the regexp represented by string. It shall
be an error if string is not a valid representation of
an extended regular expression as defined in ISO 9945-2.
A normal character in string matches a node with a char
property whose value is that character.
| This could be implemented in terms of the above primitives. |
|