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std.regex: Doc: Synopsis: Fix typo&spacing, clarify an example, add another.

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DoctorNoobingstoneIPresume 2021-11-14 19:26:14 +02:00
parent 79c4c172f7
commit ae900ac6c6
1 changed files with 12 additions and 4 deletions
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16
std/regex/package.d
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@ -70,7 +70,7 @@ $(TR $(TD Objects) $(TD
...
// multi-pattern regex
auto multi = regex([`\d+,\d+`,`(a-z]+):(\d+)`]);
auto multi = regex([`\d+,\d+`, `([a-z]+):(\d+)`]);
auto m = "abc:43 12,34".matchAll(multi);
assert(m.front.whichPattern == 2);
assert(m.front[1] == "abc");
@ -80,9 +80,17 @@ $(TR $(TD Objects) $(TD
assert(m.front[1] == "12");
...
// The result of the `matchAll/matchFirst` is directly testable with if/assert/while.
// e.g. test if a string consists of letters:
assert(matchFirst("Letter", `^\p{L}+$`));
// The result of `matchAll/matchFirst` is directly testable with `if/assert/while`,
// e.g. test if a string consists of letters only:
assert(matchFirst("LettersOnly", `^\p{L}+$`));
// And we can take advantage of the ability to define a variable in the $(LINK2 https://dlang.org/spec/statement.html#IfCondition `IfCondition`):
if (const auto captures = matchFirst("At l34st one digit, but maybe more...", `((\d)(\d*))`))
{
assert(captures[2] == "3");
assert(captures[3] == "4");
assert(captures[1] == "34");
}
---
$(SECTION Syntax and general information)