특정 문자
Page 7 - 괄호 중에 하나라도 있나요? [ ]
Source : How do you do?
Case 1
Regular Expression : [oyu]
First match: Ho w do you do? All matches : Ho w do you do ?
Case 2
Regular Expression : [dH].
First match: Ho w do you do?
All matches : Ho w do you do ?
Case 3
Regular Expression : [owy] [yow]
First match: How do you do?
All matches : How do yo u 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: ABC DEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz 0123456789 All matches : ABCDEFGHIJK LMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz 0123456789
Case 2
Regular Expression : [CDEFGHIJK]
First match: ABC DEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz 0123456789
All matches : ABCDEFGHIJK LMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz 0123456789
Case 3
Regular Expression : [a-d]
First match: ABCDEFGHIJKLMNOPQRSTUVWXYZ a bcdefghijklmnopqrstuvwxyz 0123456789
All matches : ABCDEFGHIJKLMNOPQRSTUVWXYZ abcd efghijklmnopqrstuvwxyz 0123456789
Case 4
Regular Expression : [2-6]
First match: ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz 012 3456789
All matches : ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz 0123456 789
Case 5
Regular Expression : [C-Ka-d2-6]
First match: ABC DEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz 0123456789
All matches : ABCDEFGHIJK LMNOPQRSTUVWXYZ abcd efghijklmnopqrstuvwxyz 0123456 789
Page 9 - ^은 다른 의미도 가진다! - not
Source : ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz 0123456789
Case 1
Regular Expression : [^CDghi45]
First match: A BCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz 0123456789 All matches : AB CDEFGHIJKLMNOPQRSTUVWXYZ abcdef ghijklmnopqrstuvwxyz 0123 456789
Case 2
Regular Expression : [^W-Z]
First match: A BCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz 0123456789 All matches : ABCDEFGHIJKLMNOPQRSTUV WXYZ abcdefghijklmnopqrstuvwxyz 0123456789
If a character class starts with ^, then specified characters will not be selected.
