What does \’.- mean in a Regular Expression

The character class is the entire expression [A-Z \'.-], meaning any of A–Z, space, single quote, period, or hyphen. The \ is needed to protect the single quote, since it’s also being used as the string quote. This charclass must be repeated 2 to 20 times, and because of the leading ^ and trailing $ anchors that must be the entire content of the matching string.

Related Posts:

  1. OR condition in Regex
  2. What is a Context Free Grammar?
  3. How can I exclude one word with grep?
  4. How can I validate an email address using a regular expression?
  5. Regular expression to match a line that doesn’t contain a word
  6. Difference between \b and \B in regex
  7. Regex: ignore case sensitivity
  8. Python regex AttributeError: ‘NoneType’ object has no attribute ‘group’
  9. Regular Expression for alphanumeric and underscores
  10. What is the difference between the regular expressions [^\d\s] and [\D\S]
  11. Regular Expression for alphanumeric and underscores
  12. grep –ignore-case –only
  13. Regex AND operator
  14. python re.split() to split by spaces, commas, and periods, but not in cases like 1,000 or 1.50
  15. python re.split() to split by spaces, commas, and periods, but not in cases like 1,000 or 1.50
  16. Regex to test if string begins with http:// or https://
  17. Regular expression negative lookahead
  18. Regular Expression to match string starting with a specific word
  19. Regular Expressions: Is there an AND operator?
  20. Writing a very simple lexical analyser in C++
  21. Regular expression to match standard 10 digit phone number
  22. Regular Expression.how to add optional character at end of regex
  23. Regular Expression with wildcards to match any character
  24. What is a non-capturing group in regular expressions?
  25. How to validate an email address in PHP
  26. What is a non-capturing group in regular expressions?
  27. Regular expression to match standard 10 digit phone number
  28. How to use Regular Expressions (Regex) in Microsoft Excel both in-cell and loops
  29. Python string.replace regular expression
  30. How to use Regular Expressions (Regex) in Microsoft Excel both in-cell and loops
  31. Python string.replace regular expression
  32. Symbol for any number of any characters in regex?
  33. Grep and Python
  34. Regex – Does not contain certain Characters
  35. How to replace ” \ ” with ” \\ ” in java
  36. A regular expression to exclude a word/string
  37. Regex how to match an optional character
  38. How to validate an email address in JavaScript
  39. Using Bash regex match (=~) where regex includes quotes (” characters)
  40. Searching for UUIDs in text with regex
  41. Regular expression to match a word or its prefix
  42. How can I remove punctuation from input text in Java?
  43. Regular expression for exact match of a string
  44. Using the star sign in grep
  45. Regex optional group
  46. Regex for string contains?
  47. Regular Expression – Validate Gmail addresses
  48. Java; String replace (using regular expressions)?
  49. How can I remove punctuation from input text in Java?
  50. How can I output only captured groups with sed?
  51. How to negate specific word in regex?
  52. What is the grep equivalent in Python?
  53. javascript HTML from document.body.innerHTML
  54. Which regular expression operator means ‘Don’t’ match this character?
  55. Python re.split() vs split()
  56. How can I write a regex which matches non greedy?
  57. Negative matching using grep (match lines that do not contain foo)
  58. How to exclude a specific string constant?
  59. How to replace a whole line with sed?
  60. Validating IPv4 addresses with regexp
  61. How to validate phone number using PHP?
  62. Validate phone number with JavaScript
  63. Can a URL contain a semicolon and still be valid?
  64. How is \\n and \\\n interpreted by the expanded regular expression?
  65. Regex to match only uppercase “words” with some exceptions
  66. Regular Expression to reformat a US phone number in Javascript
  67. Regex to match only letters
  68. Regex optional capturing group?
  69. Finding the complement of a DFA?
  70. RegEx to find two or more consecutive chars
  71. Regex to match an optional ‘+’ symbol followed by any number of digits
  72. Regex Match all characters between two strings
  73. Regular expressions in C: examples?
  74. How to ignore whitespace in a regular expression subject string?
  75. Regex: matching up to the first occurrence of a character
  76. Regex credit card number tests
  77. Regular expression – starting and ending with a character string
  78. How do I match any character across multiple lines in a regular expression?
  79. Regular expression to limit number of characters to 10
  80. Regex that matches integers in between whitespace or start/end of string only
  81. Regular Expressions- Match Anything
  82. What is the difference between square brackets and parentheses in a regex?
  83. Regex for “AND NOT” operation
  84. Regular expression that matches valid IPv6 addresses
  85. Escaping Parentheses in Regex
  86. How to replace a string in an existing file in Perl
  87. What is the best regular expression to check if a string is a valid URL?
  88. Regex empty string or email
  89. Regex difference: (\w+)? and (\w*)
  90. Wrap element with in any number of elements with PHP
  91. extract shortcodes from string
  92. preg_replace and comment_form_defaults
  93. How to set up redirects for category paginated pages after adding /category/ to permalink
  94. Adding span tags to post titles using regex
  95. Redirect non www to www using redirection plugin regex
  96. Restrict comments with regular expression
  97. Call Shortcode Attribute Value within another function
  98. How to fix old embeded iframes with WP-CLI search-replace
  99. Regex For Extracting First 4 letters of search term
  100. Use Regex Redirection via htsaccess for RSS Feeds WordPress

Leave a Comment