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July 08, 2018 ctRegex not matching correctly at word boundaries | ||||
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First of all, I'm not an expert about regular expression syntax, however I believe there might be some strange bug when using ctRegex. Consider the following code: void main() { import std.regex: ctRegex, matchFirst; auto expression = ctRegex!("\bis\b"); auto match = matchFirst("This island is beautiful", expression); if(match.empty) writeln("no match"); else writeln("match"); } when I compile and run I get the output "no match". Looking online I found this website https://www.regular-expressions.info/wordboundaries.html where they explain that the above regex should match that string. So I don't understand what's wrong with my code. P.S.: using regex instead of ctRegex doesn't solve the problem. |
July 08, 2018 Re: ctRegex not matching correctly at word boundaries | ||||
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Posted in reply to Ivo | On 08/07/2018 10:37 PM, Ivo wrote:
> First of all, I'm not an expert about regular expression syntax, however I believe there might be some strange bug when using ctRegex.
>
> Consider the following code:
>
> void main() {
> import std.regex: ctRegex, matchFirst;
> auto expression = ctRegex!("\bis\b");
auto expression = ctRegex!(`\bis\b`);
\b is bell escape code as per ASCII
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July 08, 2018 Re: ctRegex not matching correctly at word boundaries | ||||
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Posted in reply to rikki cattermole | On Sunday, 8 July 2018 at 10:58:24 UTC, rikki cattermole wrote:
> On 08/07/2018 10:37 PM, Ivo wrote:
>> First of all, I'm not an expert about regular expression syntax, however I believe there might be some strange bug when using ctRegex.
>>
>> Consider the following code:
>>
>> void main() {
>> import std.regex: ctRegex, matchFirst;
>> auto expression = ctRegex!("\bis\b");
>
> auto expression = ctRegex!(`\bis\b`);
>
> \b is bell escape code as per ASCII
Thanks a lot.
I forgot to put an r before the quotes. My silly mistake.
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