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8296292: Document the default behavior of '$' in regular expressions correctly

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Reviewed-by: lancea
This commit is contained in:
Raffaello Giulietti 2022-11-17 12:46:19 +00:00
parent d8c809b196
commit 35acb89166
1 changed files with 9 additions and 3 deletions
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12
src/java.base/share/classes/java/util/regex/Pattern.java
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@ -484,9 +484,15 @@ import jdk.internal.util.regex.Grapheme;
* <p> The regular expression {@code .} matches any character except a line
* terminator unless the {@link #DOTALL} flag is specified.
*
* <p> By default, the regular expressions {@code ^} and {@code $} ignore
* line terminators and only match at the beginning and the end, respectively,
* of the entire input sequence. If {@link #MULTILINE} mode is activated then
* <p> If {@link #MULTILINE} mode is not activated, the regular expression
* {@code ^} ignores line terminators and only matches at the beginning of
* the entire input sequence. The regular expression {@code $} matches at the
* end of the entire input sequence, but also matches just before the last line
* terminator if this is not followed by any other input character. Other line
* terminators are ignored, including the last one if it is followed by other
* input characters.
*
* <p> If {@link #MULTILINE} mode is activated then
* {@code ^} matches at the beginning of input and after any line terminator
* except at the end of input. When in {@link #MULTILINE} mode {@code $}
* matches just before a line terminator or the end of the input sequence.