[LANG-1238] Add RegexUtils class instead of overloadinh methods in
StringUtils that take a regex to take precompiled Pattern. Sort methods.
This commit is contained in:
Gary Gregory
parent
44b6d2ead5
commit
bcc4f82a7a
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@ -25,6 +25,42 @@ import java.util.regex.Pattern;
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*/
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*/
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public class RegExUtils {
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public class RegExUtils {
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/**
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* <p>Removes each substring of the text String that matches the given regular expression pattern.</p>
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*
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* This method is a {@code null} safe equivalent to:
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* <ul>
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* <li>{@code pattern.matcher(text).replaceAll(StringUtils.EMPTY)}</li>
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* </ul>
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*
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* <p>A {@code null} reference passed to this method is a no-op.</p>
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*
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* <pre>
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* StringUtils.removeAll(null, *) = null
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* StringUtils.removeAll("any", (Pattern) null) = "any"
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* StringUtils.removeAll("any", Pattern.compile("")) = "any"
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* StringUtils.removeAll("any", Pattern.compile(".*")) = ""
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* StringUtils.removeAll("any", Pattern.compile(".+")) = ""
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* StringUtils.removeAll("abc", Pattern.compile(".?")) = ""
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* StringUtils.removeAll("A<__>\n<__>B", Pattern.compile("<.*>")) = "A\nB"
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* StringUtils.removeAll("A<__>\n<__>B", Pattern.compile("(?s)<.*>")) = "AB"
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* StringUtils.removeAll("A<__>\n<__>B", Pattern.compile("<.*>", Pattern.DOTALL)) = "AB"
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* StringUtils.removeAll("ABCabc123abc", Pattern.compile("[a-z]")) = "ABC123"
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* </pre>
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*
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* @param text text to remove from, may be null
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* @param regex the regular expression to which this string is to be matched
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* @return the text with any removes processed,
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* {@code null} if null String input
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*
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* @see #replaceAll(String, Pattern, String)
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* @see java.util.regex.Matcher#replaceAll(String)
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* @see java.util.regex.Pattern
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*/
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public static String removeAll(final String text, final Pattern regex) {
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return replaceAll(text, regex, StringUtils.EMPTY);
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}
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/**
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/**
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* <p>Removes each substring of the text String that matches the given regular expression.</p>
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* <p>Removes each substring of the text String that matches the given regular expression.</p>
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*
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*
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@ -72,39 +108,39 @@ public class RegExUtils {
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}
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}
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/**
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/**
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* <p>Removes each substring of the text String that matches the given regular expression pattern.</p>
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* <p>Removes the first substring of the text string that matches the given regular expression pattern.</p>
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*
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*
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* This method is a {@code null} safe equivalent to:
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* This method is a {@code null} safe equivalent to:
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* <ul>
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* <ul>
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* <li>{@code pattern.matcher(text).replaceAll(StringUtils.EMPTY)}</li>
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* <li>{@code pattern.matcher(text).replaceFirst(StringUtils.EMPTY)}</li>
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* </ul>
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* </ul>
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*
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*
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* <p>A {@code null} reference passed to this method is a no-op.</p>
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* <p>A {@code null} reference passed to this method is a no-op.</p>
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*
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*
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* <pre>
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* <pre>
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* StringUtils.removeAll(null, *) = null
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* StringUtils.removeFirst(null, *) = null
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* StringUtils.removeAll("any", (Pattern) null) = "any"
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* StringUtils.removeFirst("any", (Pattern) null) = "any"
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* StringUtils.removeAll("any", Pattern.compile("")) = "any"
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* StringUtils.removeFirst("any", Pattern.compile("")) = "any"
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* StringUtils.removeAll("any", Pattern.compile(".*")) = ""
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* StringUtils.removeFirst("any", Pattern.compile(".*")) = ""
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* StringUtils.removeAll("any", Pattern.compile(".+")) = ""
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* StringUtils.removeFirst("any", Pattern.compile(".+")) = ""
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* StringUtils.removeAll("abc", Pattern.compile(".?")) = ""
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* StringUtils.removeFirst("abc", Pattern.compile(".?")) = "bc"
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* StringUtils.removeAll("A<__>\n<__>B", Pattern.compile("<.*>")) = "A\nB"
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* StringUtils.removeFirst("A<__>\n<__>B", Pattern.compile("<.*>")) = "A\n<__>B"
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* StringUtils.removeAll("A<__>\n<__>B", Pattern.compile("(?s)<.*>")) = "AB"
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* StringUtils.removeFirst("A<__>\n<__>B", Pattern.compile("(?s)<.*>")) = "AB"
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* StringUtils.removeAll("A<__>\n<__>B", Pattern.compile("<.*>", Pattern.DOTALL)) = "AB"
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* StringUtils.removeFirst("ABCabc123", Pattern.compile("[a-z]")) = "ABCbc123"
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* StringUtils.removeAll("ABCabc123abc", Pattern.compile("[a-z]")) = "ABC123"
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* StringUtils.removeFirst("ABCabc123abc", Pattern.compile("[a-z]+")) = "ABC123abc"
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* </pre>
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* </pre>
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*
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*
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* @param text text to remove from, may be null
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* @param text text to remove from, may be null
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* @param regex the regular expression to which this string is to be matched
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* @param regex the regular expression pattern to which this string is to be matched
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* @return the text with any removes processed,
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* @return the text with the first replacement processed,
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* {@code null} if null String input
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* {@code null} if null String input
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*
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*
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* @see #replaceAll(String, Pattern, String)
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* @see #replaceFirst(String, Pattern, String)
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* @see java.util.regex.Matcher#replaceAll(String)
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* @see java.util.regex.Matcher#replaceFirst(String)
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* @see java.util.regex.Pattern
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* @see java.util.regex.Pattern
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*/
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*/
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public static String removeAll(final String text, final Pattern regex) {
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public static String removeFirst(final String text, final Pattern regex) {
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return replaceAll(text, regex, StringUtils.EMPTY);
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return replaceFirst(text, regex, StringUtils.EMPTY);
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}
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}
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/**
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/**
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@ -152,86 +188,6 @@ public class RegExUtils {
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return replaceFirst(text, regex, StringUtils.EMPTY);
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return replaceFirst(text, regex, StringUtils.EMPTY);
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}
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}
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/**
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* <p>Removes the first substring of the text string that matches the given regular expression pattern.</p>
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*
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* This method is a {@code null} safe equivalent to:
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* <ul>
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* <li>{@code pattern.matcher(text).replaceFirst(StringUtils.EMPTY)}</li>
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* </ul>
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*
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* <p>A {@code null} reference passed to this method is a no-op.</p>
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*
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* <pre>
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* StringUtils.removeFirst(null, *) = null
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* StringUtils.removeFirst("any", (Pattern) null) = "any"
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* StringUtils.removeFirst("any", Pattern.compile("")) = "any"
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* StringUtils.removeFirst("any", Pattern.compile(".*")) = ""
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* StringUtils.removeFirst("any", Pattern.compile(".+")) = ""
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* StringUtils.removeFirst("abc", Pattern.compile(".?")) = "bc"
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* StringUtils.removeFirst("A<__>\n<__>B", Pattern.compile("<.*>")) = "A\n<__>B"
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* StringUtils.removeFirst("A<__>\n<__>B", Pattern.compile("(?s)<.*>")) = "AB"
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* StringUtils.removeFirst("ABCabc123", Pattern.compile("[a-z]")) = "ABCbc123"
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* StringUtils.removeFirst("ABCabc123abc", Pattern.compile("[a-z]+")) = "ABC123abc"
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* </pre>
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*
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* @param text text to remove from, may be null
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* @param regex the regular expression pattern to which this string is to be matched
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* @return the text with the first replacement processed,
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* {@code null} if null String input
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*
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* @see #replaceFirst(String, Pattern, String)
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* @see java.util.regex.Matcher#replaceFirst(String)
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* @see java.util.regex.Pattern
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*/
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public static String removeFirst(final String text, final Pattern regex) {
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return replaceFirst(text, regex, StringUtils.EMPTY);
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}
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/**
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* <p>Replaces each substring of the source String that matches the given regular expression with the given
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* replacement using the {@link Pattern#DOTALL} option. DOTALL is also known as single-line mode in Perl.</p>
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*
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* This call is a {@code null} safe equivalent to:
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* <ul>
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* <li>{@code text.replaceAll("(?s)" + regex, replacement)}</li>
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* <li>{@code Pattern.compile(regex, Pattern.DOTALL).matcher(text).replaceAll(replacement)}</li>
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* </ul>
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*
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* <p>A {@code null} reference passed to this method is a no-op.</p>
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*
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* <pre>
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* StringUtils.replacePattern(null, *, *) = null
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* StringUtils.replacePattern("any", (String) null, *) = "any"
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* StringUtils.replacePattern("any", *, null) = "any"
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* StringUtils.replacePattern("", "", "zzz") = "zzz"
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* StringUtils.replacePattern("", ".*", "zzz") = "zzz"
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* StringUtils.replacePattern("", ".+", "zzz") = ""
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* StringUtils.replacePattern("<__>\n<__>", "<.*>", "z") = "z"
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* StringUtils.replacePattern("ABCabc123", "[a-z]", "_") = "ABC___123"
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* StringUtils.replacePattern("ABCabc123", "[^A-Z0-9]+", "_") = "ABC_123"
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* StringUtils.replacePattern("ABCabc123", "[^A-Z0-9]+", "") = "ABC123"
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* StringUtils.replacePattern("Lorem ipsum dolor sit", "( +)([a-z]+)", "_$2") = "Lorem_ipsum_dolor_sit"
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* </pre>
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*
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* @param text
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* the source string
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* @param regex
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* the regular expression to which this string is to be matched
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* @param replacement
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* the string to be substituted for each match
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* @return The resulting {@code String}
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* @see #replaceAll(String, String, String)
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* @see String#replaceAll(String, String)
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* @see Pattern#DOTALL
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*/
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public static String replacePattern(final String text, final String regex, final String replacement) {
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if (text == null || regex == null || replacement == null) {
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return text;
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}
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return Pattern.compile(regex, Pattern.DOTALL).matcher(text).replaceAll(replacement);
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}
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/**
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/**
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* <p>Removes each substring of the source String that matches the given regular expression using the DOTALL option.</p>
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* <p>Removes each substring of the source String that matches the given regular expression using the DOTALL option.</p>
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*
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*
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@ -263,6 +219,49 @@ public class RegExUtils {
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return replacePattern(text, regex, StringUtils.EMPTY);
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return replacePattern(text, regex, StringUtils.EMPTY);
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}
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}
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/**
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* <p>Replaces each substring of the text String that matches the given regular expression pattern with the given replacement.</p>
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*
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* This method is a {@code null} safe equivalent to:
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* <ul>
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* <li>{@code pattern.matcher(text).replaceAll(replacement)}</li>
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* </ul>
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*
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* <p>A {@code null} reference passed to this method is a no-op.</p>
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*
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* <pre>
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* StringUtils.replaceAll(null, *, *) = null
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* StringUtils.replaceAll("any", (Pattern) null, *) = "any"
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* StringUtils.replaceAll("any", *, null) = "any"
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* StringUtils.replaceAll("", Pattern.compile(""), "zzz") = "zzz"
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* StringUtils.replaceAll("", Pattern.compile(".*"), "zzz") = "zzz"
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* StringUtils.replaceAll("", Pattern.compile(".+"), "zzz") = ""
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* StringUtils.replaceAll("abc", Pattern.compile(""), "ZZ") = "ZZaZZbZZcZZ"
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* StringUtils.replaceAll("<__>\n<__>", Pattern.compile("<.*>"), "z") = "z\nz"
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* StringUtils.replaceAll("<__>\n<__>", Pattern.compile("<.*>", Pattern.DOTALL), "z") = "z"
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* StringUtils.replaceAll("<__>\n<__>", Pattern.compile("(?s)<.*>"), "z") = "z"
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* StringUtils.replaceAll("ABCabc123", Pattern.compile("[a-z]"), "_") = "ABC___123"
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* StringUtils.replaceAll("ABCabc123", Pattern.compile("[^A-Z0-9]+"), "_") = "ABC_123"
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* StringUtils.replaceAll("ABCabc123", Pattern.compile("[^A-Z0-9]+"), "") = "ABC123"
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* StringUtils.replaceAll("Lorem ipsum dolor sit", Pattern.compile("( +)([a-z]+)"), "_$2") = "Lorem_ipsum_dolor_sit"
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* </pre>
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*
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* @param text text to search and replace in, may be null
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* @param regex the regular expression pattern to which this string is to be matched
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* @param replacement the string to be substituted for each match
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* @return the text with any replacements processed,
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* {@code null} if null String input
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*
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* @see java.util.regex.Matcher#replaceAll(String)
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* @see java.util.regex.Pattern
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*/
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public static String replaceAll(final String text, final Pattern regex, final String replacement) {
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if (text == null || regex == null || replacement == null) {
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return text;
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}
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return regex.matcher(text).replaceAll(replacement);
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}
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/**
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/**
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* <p>Replaces each substring of the text String that matches the given regular expression
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* <p>Replaces each substring of the text String that matches the given regular expression
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* with the given replacement.</p>
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* with the given replacement.</p>
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@ -318,46 +317,46 @@ public class RegExUtils {
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}
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}
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/**
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/**
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* <p>Replaces each substring of the text String that matches the given regular expression pattern with the given replacement.</p>
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* <p>Replaces the first substring of the text string that matches the given regular expression pattern
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* with the given replacement.</p>
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*
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*
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* This method is a {@code null} safe equivalent to:
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* This method is a {@code null} safe equivalent to:
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* <ul>
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* <ul>
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* <li>{@code pattern.matcher(text).replaceAll(replacement)}</li>
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* <li>{@code pattern.matcher(text).replaceFirst(replacement)}</li>
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* </ul>
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* </ul>
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*
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*
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* <p>A {@code null} reference passed to this method is a no-op.</p>
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* <p>A {@code null} reference passed to this method is a no-op.</p>
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*
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*
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* <pre>
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* <pre>
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* StringUtils.replaceAll(null, *, *) = null
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* StringUtils.replaceFirst(null, *, *) = null
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* StringUtils.replaceAll("any", (Pattern) null, *) = "any"
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* StringUtils.replaceFirst("any", (Pattern) null, *) = "any"
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* StringUtils.replaceAll("any", *, null) = "any"
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* StringUtils.replaceFirst("any", *, null) = "any"
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* StringUtils.replaceAll("", Pattern.compile(""), "zzz") = "zzz"
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* StringUtils.replaceFirst("", Pattern.compile(""), "zzz") = "zzz"
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* StringUtils.replaceAll("", Pattern.compile(".*"), "zzz") = "zzz"
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* StringUtils.replaceFirst("", Pattern.compile(".*"), "zzz") = "zzz"
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* StringUtils.replaceAll("", Pattern.compile(".+"), "zzz") = ""
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* StringUtils.replaceFirst("", Pattern.compile(".+"), "zzz") = ""
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* StringUtils.replaceAll("abc", Pattern.compile(""), "ZZ") = "ZZaZZbZZcZZ"
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* StringUtils.replaceFirst("abc", Pattern.compile(""), "ZZ") = "ZZabc"
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* StringUtils.replaceAll("<__>\n<__>", Pattern.compile("<.*>"), "z") = "z\nz"
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* StringUtils.replaceFirst("<__>\n<__>", Pattern.compile("<.*>"), "z") = "z\n<__>"
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* StringUtils.replaceAll("<__>\n<__>", Pattern.compile("<.*>", Pattern.DOTALL), "z") = "z"
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* StringUtils.replaceFirst("<__>\n<__>", Pattern.compile("(?s)<.*>"), "z") = "z"
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* StringUtils.replaceAll("<__>\n<__>", Pattern.compile("(?s)<.*>"), "z") = "z"
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* StringUtils.replaceFirst("ABCabc123", Pattern.compile("[a-z]"), "_") = "ABC_bc123"
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* StringUtils.replaceAll("ABCabc123", Pattern.compile("[a-z]"), "_") = "ABC___123"
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* StringUtils.replaceFirst("ABCabc123abc", Pattern.compile("[^A-Z0-9]+"), "_") = "ABC_123abc"
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* StringUtils.replaceAll("ABCabc123", Pattern.compile("[^A-Z0-9]+"), "_") = "ABC_123"
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* StringUtils.replaceFirst("ABCabc123abc", Pattern.compile("[^A-Z0-9]+"), "") = "ABC123abc"
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* StringUtils.replaceAll("ABCabc123", Pattern.compile("[^A-Z0-9]+"), "") = "ABC123"
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* StringUtils.replaceFirst("Lorem ipsum dolor sit", Pattern.compile("( +)([a-z]+)"), "_$2") = "Lorem_ipsum dolor sit"
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* StringUtils.replaceAll("Lorem ipsum dolor sit", Pattern.compile("( +)([a-z]+)"), "_$2") = "Lorem_ipsum_dolor_sit"
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* </pre>
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* </pre>
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*
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*
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* @param text text to search and replace in, may be null
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* @param text text to search and replace in, may be null
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* @param regex the regular expression pattern to which this string is to be matched
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* @param regex the regular expression pattern to which this string is to be matched
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* @param replacement the string to be substituted for each match
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* @param replacement the string to be substituted for the first match
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* @return the text with any replacements processed,
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* @return the text with the first replacement processed,
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* {@code null} if null String input
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* {@code null} if null String input
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*
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*
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* @see java.util.regex.Matcher#replaceAll(String)
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* @see java.util.regex.Matcher#replaceFirst(String)
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* @see java.util.regex.Pattern
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* @see java.util.regex.Pattern
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*/
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*/
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public static String replaceAll(final String text, final Pattern regex, final String replacement) {
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public static String replaceFirst(final String text, final Pattern regex, final String replacement) {
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if (text == null || regex == null || replacement == null) {
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if (text == null || regex == null|| replacement == null ) {
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return text;
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return text;
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}
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}
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return regex.matcher(text).replaceAll(replacement);
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return regex.matcher(text).replaceFirst(replacement);
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}
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}
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/**
|
/**
|
||||||
|
|
@ -413,46 +412,47 @@ public class RegExUtils {
|
||||||
}
|
}
|
||||||
|
|
||||||
/**
|
/**
|
||||||
* <p>Replaces the first substring of the text string that matches the given regular expression pattern
|
* <p>Replaces each substring of the source String that matches the given regular expression with the given
|
||||||
* with the given replacement.</p>
|
* replacement using the {@link Pattern#DOTALL} option. DOTALL is also known as single-line mode in Perl.</p>
|
||||||
*
|
*
|
||||||
* This method is a {@code null} safe equivalent to:
|
* This call is a {@code null} safe equivalent to:
|
||||||
* <ul>
|
* <ul>
|
||||||
* <li>{@code pattern.matcher(text).replaceFirst(replacement)}</li>
|
* <li>{@code text.replaceAll("(?s)" + regex, replacement)}</li>
|
||||||
|
* <li>{@code Pattern.compile(regex, Pattern.DOTALL).matcher(text).replaceAll(replacement)}</li>
|
||||||
* </ul>
|
* </ul>
|
||||||
*
|
*
|
||||||
* <p>A {@code null} reference passed to this method is a no-op.</p>
|
* <p>A {@code null} reference passed to this method is a no-op.</p>
|
||||||
*
|
*
|
||||||
* <pre>
|
* <pre>
|
||||||
* StringUtils.replaceFirst(null, *, *) = null
|
* StringUtils.replacePattern(null, *, *) = null
|
||||||
* StringUtils.replaceFirst("any", (Pattern) null, *) = "any"
|
* StringUtils.replacePattern("any", (String) null, *) = "any"
|
||||||
* StringUtils.replaceFirst("any", *, null) = "any"
|
* StringUtils.replacePattern("any", *, null) = "any"
|
||||||
* StringUtils.replaceFirst("", Pattern.compile(""), "zzz") = "zzz"
|
* StringUtils.replacePattern("", "", "zzz") = "zzz"
|
||||||
* StringUtils.replaceFirst("", Pattern.compile(".*"), "zzz") = "zzz"
|
* StringUtils.replacePattern("", ".*", "zzz") = "zzz"
|
||||||
* StringUtils.replaceFirst("", Pattern.compile(".+"), "zzz") = ""
|
* StringUtils.replacePattern("", ".+", "zzz") = ""
|
||||||
* StringUtils.replaceFirst("abc", Pattern.compile(""), "ZZ") = "ZZabc"
|
* StringUtils.replacePattern("<__>\n<__>", "<.*>", "z") = "z"
|
||||||
* StringUtils.replaceFirst("<__>\n<__>", Pattern.compile("<.*>"), "z") = "z\n<__>"
|
* StringUtils.replacePattern("ABCabc123", "[a-z]", "_") = "ABC___123"
|
||||||
* StringUtils.replaceFirst("<__>\n<__>", Pattern.compile("(?s)<.*>"), "z") = "z"
|
* StringUtils.replacePattern("ABCabc123", "[^A-Z0-9]+", "_") = "ABC_123"
|
||||||
* StringUtils.replaceFirst("ABCabc123", Pattern.compile("[a-z]"), "_") = "ABC_bc123"
|
* StringUtils.replacePattern("ABCabc123", "[^A-Z0-9]+", "") = "ABC123"
|
||||||
* StringUtils.replaceFirst("ABCabc123abc", Pattern.compile("[^A-Z0-9]+"), "_") = "ABC_123abc"
|
* StringUtils.replacePattern("Lorem ipsum dolor sit", "( +)([a-z]+)", "_$2") = "Lorem_ipsum_dolor_sit"
|
||||||
* StringUtils.replaceFirst("ABCabc123abc", Pattern.compile("[^A-Z0-9]+"), "") = "ABC123abc"
|
|
||||||
* StringUtils.replaceFirst("Lorem ipsum dolor sit", Pattern.compile("( +)([a-z]+)"), "_$2") = "Lorem_ipsum dolor sit"
|
|
||||||
* </pre>
|
* </pre>
|
||||||
*
|
*
|
||||||
* @param text text to search and replace in, may be null
|
* @param text
|
||||||
* @param regex the regular expression pattern to which this string is to be matched
|
* the source string
|
||||||
* @param replacement the string to be substituted for the first match
|
* @param regex
|
||||||
* @return the text with the first replacement processed,
|
* the regular expression to which this string is to be matched
|
||||||
* {@code null} if null String input
|
* @param replacement
|
||||||
*
|
* the string to be substituted for each match
|
||||||
* @see java.util.regex.Matcher#replaceFirst(String)
|
* @return The resulting {@code String}
|
||||||
* @see java.util.regex.Pattern
|
* @see #replaceAll(String, String, String)
|
||||||
|
* @see String#replaceAll(String, String)
|
||||||
|
* @see Pattern#DOTALL
|
||||||
*/
|
*/
|
||||||
public static String replaceFirst(final String text, final Pattern regex, final String replacement) {
|
public static String replacePattern(final String text, final String regex, final String replacement) {
|
||||||
if (text == null || regex == null|| replacement == null ) {
|
if (text == null || regex == null || replacement == null) {
|
||||||
return text;
|
return text;
|
||||||
}
|
}
|
||||||
return regex.matcher(text).replaceFirst(replacement);
|
return Pattern.compile(regex, Pattern.DOTALL).matcher(text).replaceAll(replacement);
|
||||||
}
|
}
|
||||||
|
|
||||||
}
|
}
|
||||||
|
|
|
||||||
Loading…
Reference in New Issue