regex replace all ignore case

by

To do case-insensitive search and replace, you can change

outText = inText.replaceAll(word, word.replaceAll(" ", "~"));

into

outText = inText.replaceAll("(?i)" + word, word.replaceAll(" ", "~"));

Avoid ruining the original capitalization:

In the above approach however, you’re ruining the capitalization of the replaced word. Here is a better suggestion:

String inText="Sony Ericsson is a leading company in mobile. " +
              "The company sony ericsson was found in oct 2001";
String word = "sony ericsson";

Pattern p = Pattern.compile(word, Pattern.CASE_INSENSITIVE);
Matcher m = p.matcher(inText);

StringBuffer sb = new StringBuffer();

while (m.find()) {
  String replacement = m.group().replace(' ', '~');
  m.appendReplacement(sb, Matcher.quoteReplacement(replacement));
}
m.appendTail(sb);

String outText = sb.toString();

System.out.println(outText);

Output:

Sony~Ericsson is a leading company in mobile.
The company sony~ericsson was found in oct 2001

More Related Contents:

  1. Find the highest number between two literal strings using a Regular Expression
  2. How to split a string, but also keep the delimiters?
  3. Match multiline text using regular expression
  4. Regex to match a C-style multiline comment
  5. Splitting a string at every n-th character
  6. Parsing XML with REGEX in Java
  7. Java – Best way to grab ALL Strings between two Strings? (regex?)
  8. removing invalid XML characters from a string in java
  9. How do I convert CamelCase into human-readable names in Java?
  10. Replacing all non-alphanumeric characters with empty strings
  11. Extracting pairs of words using String.split()
  12. What is the simplest way to convert a Java string from all caps (words separated by underscores) to CamelCase (no word separators)?
  13. Java String.split() Regex
  14. Java – regular expression finding comments in code
  15. Given a string, generate a regex that can parse *similar* strings
  16. Regular Expression to match 3 or more Consecutive Sequential Characters and Consecutive Identical Characters
  17. How to split a comma separated String while ignoring escaped commas?
  18. PatternSyntaxException: Illegal Repetition when using regex in Java
  19. java regex capture group
  20. How to remove HTML tag in Java [duplicate]
  21. Split string into sentences
  22. What is the equivalent of Regex-replace-with-function-evaluation in Java 7?
  23. Regex split numbers and letter groups without spaces
  24. Why does replaceAll fail with “illegal group reference”?
  25. How to create a regex for accepting only alphanumeric characters? [duplicate]
  26. Regex to get first number in string with other characters
  27. How does this Java regex detect palindromes?
  28. Replacing single ‘\’ with ‘\\’ in Java
  29. Java Counting # of occurrences of a word in a string
  30. Java replace all square brackets in a string

Leave a Comment