Captures

opCast bool opCast(): Explicit cast to bool. Useful as a shorthand for !(x.empty) in if and assert statements.
opIndex inout(R) opIndex(size_t i): Range interface.
opIndex R opIndex(String i): Lookup named submatch.
popBack void popBack()
popFront void popFront()
back R back [@property getter]: Range interface.

Properties

captures ref captures [@property getter]: A hook for compatibility with original std.regex.
empty bool empty [@property getter]: Range interface.
front R front [@property getter]: Range interface.
hit R hit [@property getter]: Slice of matched portion of input.
length size_t length [@property getter]: Number of matches in this object.
post R post [@property getter]: Slice of input immediately after the match.
pre R pre [@property getter]: Slice of input prior to the match.
whichPattern int whichPattern [@property getter]: Number of pattern matched counting, where 1 - the first pattern. Returns 0 on no match.

Examples

import std.range.primitives : popFrontN;

auto c = matchFirst("@abc#", regex(`(\w)(\w)(\w)`));
assert(c.pre == "@"); // Part of input preceding match
assert(c.post == "#"); // Immediately after match
assert(c.hit == c[0] && c.hit == "abc"); // The whole match
assert(c[2] == "b");
assert(c.front == "abc");
c.popFront();
assert(c.front == "a");
assert(c.back == "c");
c.popBack();
assert(c.back == "b");
popFrontN(c, 2);
assert(c.empty);

assert(!matchFirst("nothing", "something"));

// Captures that are not matched will be null.
c = matchFirst("ac", regex(`a(b)?c`));
assert(c);
assert(!c[1]);

The OpenD Programming Language

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