[Issue 12227] New: Allow matching multiple patterns in one go with std.regex
d-bugmail at puremagic.com
d-bugmail at puremagic.com
Sat Feb 22 13:38:39 PST 2014
https://d.puremagic.com/issues/show_bug.cgi?id=12227
Summary: Allow matching multiple patterns in one go with
std.regex
Product: D
Version: D2
Platform: All
OS/Version: All
Status: NEW
Severity: normal
Priority: P2
Component: Phobos
AssignedTo: nobody at puremagic.com
ReportedBy: dmitry.olsh at gmail.com
--- Comment #0 from Dmitry Olshansky <dmitry.olsh at gmail.com> 2014-02-22 13:38:38 PST ---
Synposis:
auto m = matchFirst("42 days", `[a-z]+`, `\d+`);
assert(m.index == 2); //2nd pattern match
assert(m.index != 0); //same as not empty
foreach(item; "42 days".matchAll(`[a-z]+`, `\d+`))
{
switch(item.index){
case 1:
assert(item[0] == "days");
break;
case 2:
assert(item[1] == "42");
break;
default:
assert(0);
}
}
Rationale - as a more efficient common basis for pattern matching (e.g.
switch-case on with regex patterns as cases).
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