특정 문자

특정 문자

Page 7 - 괄호 중에 하나라도 있나요? [ ]

• Source : How do you do?
• Case 1
  • Regular Expression : [oyu]
  • First match: How do you do?
  • All matches : How do you do?
• Case 2
  • Regular Expression : [dH].
  • First match: How do you do?
  • All matches : How do you do?
• Case 3
  • Regular Expression : [owy][yow]
  • First match: How do you do?
  • All matches : How do you do?
• Inside square brackets "[]" a list of character can be provided. The expression matches if any of these characters is found. The order of characters is insignificant(case 3)
• 괄호 세트가 문자 하나에 해당!

 

Page 8 - 범위가 필요해! -

• Source : ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz 0123456789
• Case 1
  • Regular Expression : [C-K]
  • First match: ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz 0123456789
  • All matches : ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz 0123456789
• Case 2
  • Regular Expression : [CDEFGHIJK]
  • First match: ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz 0123456789
  • All matches : ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz 0123456789
• Case 3
  • Regular Expression : [a-d]
  • First match: ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz 0123456789
  • All matches : ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz 0123456789
• Case 4
  • Regular Expression : [2-6]
  • First match: ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz 0123456789
  • All matches : ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz 0123456789
• Case 5
  • Regular Expression : [C-Ka-d2-6]
  • First match: ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz 0123456789
  • All matches : ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz 0123456789

 

Page 9 - ^은 다른 의미도 가진다! - not

• Source : ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz 0123456789
• Case 1
  • Regular Expression : [^CDghi45]
  • First match: ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz 0123456789
  • All matches : ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz 0123456789
• Case 2
  • Regular Expression : [^W-Z]
  • First match: ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz 0123456789
  • All matches : ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz 0123456789
• If a character class starts with ^, then specified characters will not be selected.