{"id":9534,"date":"2023-05-05T15:08:51","date_gmt":"2023-05-05T08:38:51","guid":{"rendered":"https:\/\/spiceworksmyanmar.com\/blog\/?p=9534"},"modified":"2023-05-05T16:30:42","modified_gmt":"2023-05-05T10:00:42","slug":"regular-expression","status":"publish","type":"post","link":"https:\/\/www.spiceworksmyanmar.com\/blog\/regular-expression\/","title":{"rendered":"Regular Expression"},"content":{"rendered":"

\u1019\u1004\u103a\u1039\u1002\u101c\u102c\u1015\u102b\u104b
\n\u1000\u103b\u103d\u1014\u103a\u1010\u1031\u102c\u103a\u1000\u1010\u1031\u102c\u1037 Spiceworks Myanmar \u1019\u103e\u102c Backend Developer \u1021\u1014\u1031\u1014\u1032\u1037 \u1010\u102c\u101d\u1014\u103a\u101a\u1030\u101c\u102f\u1015\u103a\u1000\u102d\u102f\u1004\u103a\u1014\u1031\u1010\u1032\u1037 \u101e\u102f\u1010\u101a\u102c\u1019\u102d\u102f\u1038 \u1016\u103c\u1005\u103a\u1015\u102b\u1010\u101a\u103a\u104b \u1012\u102e\u1010\u1005\u103a\u1001\u1031\u102b\u1000\u103a\u1019\u103e\u102c\u1010\u1031\u102c\u1037 regular expression \u1021\u1000\u103c\u1031\u102c\u1004\u103a\u1038\u1000\u102d\u102f \u101d\u1031\u1019\u103b\u103e\u1015\u1031\u1038\u1001\u103b\u1004\u103a\u1015\u102b\u1010\u101a\u103a\u104b
\nRegular Expression \u1006\u102d\u102f\u1010\u102c\u1000\u1010\u1031\u102c\u1037 strings \u1010\u1005\u103a\u1001\u102f\u1019\u103e\u102c \u1019\u102d\u1019\u102d\u101c\u102d\u102f\u1001\u103b\u1004\u103a\u1010\u1032\u1037 sequence of characters \u1010\u103d\u1031\u1000\u102d\u102f pattern \u1010\u103d\u1031\u1021\u1016\u103c\u1005\u103a\u1014\u1032\u1037\u101b\u1031\u1038\u1015\u103c\u102e\u1038 \u1021\u101e\u102f\u1036\u1038\u1015\u103c\u102f\u101c\u102d\u102f\u1037\u101b\u1010\u1032\u1037 \u1014\u100a\u103a\u1038\u1015\u100a\u102c\u1010\u1005\u103a\u1001\u102f\u1015\u1032\u1016\u103c\u1005\u103a\u1015\u102b\u1010\u101a\u103a\u104b Regular Expression \u101f\u102c programming language \u1010\u102d\u102f\u1004\u103a\u1038\u1019\u103e\u102c \u1015\u102b\u101d\u1004\u103a\u1015\u103c\u102e\u1038 \u1021\u1010\u102d\u102f\u1000\u1031\u102c\u1000\u103a\u1021\u1014\u1031\u1014\u1032\u1037 regex \u101c\u102d\u102f\u1037\u101c\u100a\u103a\u1038 \u1001\u1031\u102b\u103a\u1000\u103c\u1015\u102b\u1010\u101a\u103a\u104b Regex \u1000\u102d\u102f strings \u1010\u1005\u103a\u1001\u102f\u1019\u103e\u102c \u1019\u102d\u1019\u102d\u101c\u102d\u102f\u1001\u103b\u1004\u103a\u1010\u1032\u1037 characters \u1010\u103d\u1031\u1000\u102d\u102f \u101b\u103e\u102c\u1001\u103b\u1004\u103a\u1010\u1032\u1037\u1021\u1001\u102b input validation \u1005\u1005\u103a\u1010\u1032\u1037\u1021\u1001\u102b\u1019\u103b\u102d\u102f\u1038\u1010\u103d\u1031\u1019\u103e\u102c \u1021\u101e\u102f\u1036\u1038\u1015\u103c\u102f\u1000\u103c\u1015\u102b\u1010\u101a\u103a\u104b \u1015\u1011\u1019\u1006\u102f\u1036\u1038\u1021\u1014\u1031\u1014\u1032\u1037 Alphanumeric Characters \u1014\u103e\u1004\u103a\u1037 Special Characters \u1010\u103d\u1031\u1000 \u1018\u102c\u1010\u103d\u1031\u101c\u1032\u1006\u102d\u102f\u1010\u102c\u1000\u102d\u102f \u101d\u1031\u1019\u103b\u103e\u1001\u103b\u1004\u103a\u1015\u102b\u1010\u101a\u103a\u104b Alphanumeric Characters \u1000\u1010\u1031\u102c\u1037 a \u1000\u1014\u1031 z \u1021\u1011\u102d\u104a A \u1000\u1014\u1031 Z \u1021\u1011\u102d\u104a\u00a00 \u1000\u1014\u1031 9 \u1021\u1011\u102d \u1014\u1032\u1037 _ (underscore) \u1010\u102d\u102f\u1037\u1015\u1032\u1016\u103c\u1005\u103a\u1015\u102b\u1010\u101a\u103a\u104b Special Characters \u1010\u103d\u1031\u1000\u1010\u1031\u102c\u1037 [!@#%^&*()+-=[]{}|;’:”,.\/?~`] \u1010\u102d\u102f\u1037\u1015\u1032\u1016\u103c\u1005\u103a\u1015\u102b\u1010\u101a\u103a\u104b Special Characters \u1011\u1032\u1019\u103e\u102c underscore (_) \u1019\u1015\u102b\u101d\u1004\u103a\u1010\u102c\u1000\u102d\u102f \u101e\u1010\u102d\u1015\u103c\u102f\u101b\u1019\u103e\u102c\u1016\u103c\u1005\u103a\u1015\u102b\u1010\u101a\u103a\u104b Regular Expression pattern \u1010\u103d\u1031\u1000\u102d\u102f\u1010\u1031\u102c\u1037 \/\u2026\/ (slash) \u1014\u103e\u1005\u103a\u1001\u102f\u1000\u103c\u102c\u1038\u1019\u103e\u102c \u101b\u1031\u1038\u1015\u1031\u1038\u101b\u1019\u103e\u102c\u1016\u103c\u1005\u103a\u1015\u102b\u1010\u101a\u103a\u104b Aplanumeric Characters \u1010\u103d\u1031\u1000\u102d\u102f\u1010\u1031\u102c\u1037 \/abc\/ \u101a\u1001\u102f\u1000\u1032\u1037\u101e\u102d\u102f\u1037\u101b\u1031\u1038\u1014\u102d\u102f\u1004\u103a\u1015\u103c\u102e\u1038 Special Characters \u1010\u103d\u1031\u1000\u102d\u102f\u1010\u1031\u102c\u1037 \/\\.\\$\/ back slash (\\) \u1021\u101b\u103e\u1031\u1037\u1000\u1001\u1036\u1015\u103c\u102e\u1038\u101b\u1031\u1038\u1015\u1031\u1038\u101b\u1019\u103e\u102c \u1016\u103c\u1005\u103a\u1015\u102b\u1010\u101a\u103a\u104b Regex \u1000\u102d\u102f \u1021\u1015\u102d\u102f\u1004\u103a\u1038(\u1045) \u1015\u102d\u102f\u1004\u103a\u1038\u1001\u103d\u1032\u1015\u103c\u102e\u1038 \u101c\u1031\u1037\u101c\u102c\u101e\u103d\u102c\u1038\u1000\u103c\u1015\u102b\u1019\u101a\u103a\u104b<\/p>\n

\u1021\u1015\u102d\u102f\u1004\u103a\u1038(\u1041) \u1000\u1010\u1031\u102c\u1037 Character Classes \u1021\u1000\u103c\u1031\u102c\u1004\u103a\u1038 \u1016\u103c\u1005\u103a\u1015\u102b\u1010\u101a\u103a\u104b
\n. (Any character except for new line)<\/strong>
\n. (Dot) \u1000\u1010\u1031\u102c\u1037 characters \u1021\u1000\u102f\u1014\u103a\u101c\u102f\u1036\u1038\u1000\u102d\u102f \u101c\u102d\u102f\u1001\u103b\u1004\u103a\u1010\u1032\u1037\u1021\u1001\u102b\u1019\u103e\u102c \u1021\u101e\u102f\u1036\u1038\u1015\u103c\u102f\u1010\u1032\u1037 pattern \u1010\u1005\u103a\u1001\u102f \u1016\u103c\u1005\u103a\u1015\u102b\u1010\u101a\u103a\u104b<\/p>\n

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Fig(1) . (Any character except for new line)<\/figcaption><\/figure>\n

\\w (Any word characters)<\/strong>
\n\\w \u1000\u1010\u1031\u102c\u1037 Alphanumeric Characters \u101c\u102d\u102f\u1001\u103b\u1004\u103a\u1010\u1032\u1037\u1021\u1001\u102b\u1019\u103e\u102c \u1021\u101e\u102f\u1036\u1038\u1015\u103c\u102f\u1010\u1032\u1037 pattern \u1010\u1005\u103a\u1001\u102f \u1016\u103c\u1005\u103a\u1015\u102b\u1010\u101a\u103a\u104b<\/p>\n

\"\"
Fig(2) \\w (Any word characters)<\/figcaption><\/figure>\n

\\d (Digit characters)<\/strong>
\n\\d \u1000\u1010\u1031\u102c\u1037 0,1,2,3,4,5,6,7,8,9 \u1021\u1005\u101b\u103e\u102d\u1010\u1032\u1037 digit characters \u101c\u102d\u102f\u1001\u103b\u1004\u103a\u1010\u1032\u1037\u1021\u1001\u102b\u1019\u103e\u102c \u1021\u101e\u102f\u1036\u1038\u1015\u103c\u102f\u1010\u1032\u1037 pattern \u1010\u1005\u103a\u1001\u102f \u1016\u103c\u1005\u103a\u1015\u102b\u1010\u101a\u103a\u104b<\/p>\n

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Fig(3) \\d (Digit characters)<\/figcaption><\/figure>\n

\\s (Whitespace character)<\/strong>
\n\\s \u1000\u1010\u1031\u102c\u1037 whitespace character( ) \u1000\u102d\u102f \u101c\u102d\u102f\u1001\u103b\u1004\u103a\u1010\u1032\u1037\u1021\u1001\u102b\u1019\u103e\u102c \u1021\u101e\u102f\u1036\u1038\u1015\u103c\u102f\u1010\u1032\u1037 pattern \u1010\u1005\u103a\u1001\u102f\u1016\u103c\u1005\u103a\u1015\u102b\u1010\u101a\u103a\u104b<\/p>\n

\"\"
Fig(4) \\s (Whitespace character)<\/figcaption><\/figure>\n

\\W (Not word characters)<\/strong>
\n\\W \u1000\u1010\u1031\u102c\u1037 \\w \u1014\u1032\u1037 \u1015\u103c\u1031\u102c\u1004\u103a\u1038\u1015\u103c\u1014\u103a\u1016\u103c\u1005\u103a\u1015\u103c\u102e\u1038 alphanumeric characters \u1019\u101f\u102f\u1010\u103a\u1010\u1032\u1037 \u1021\u1001\u103c\u102c\u1038 characters \u1010\u103d\u1031\u1000\u102d\u102f \u101c\u102d\u102f\u1001\u103b\u1004\u103a\u1010\u1032\u1037\u1021\u1001\u102b\u1019\u103e\u102c \u1021\u101e\u102f\u1036\u1038\u1015\u103c\u102f\u1010\u1032\u1037 pattern \u1010\u1005\u103a\u1001\u102f \u1016\u103c\u1005\u103a\u1015\u102b\u1010\u101a\u103a\u104b<\/p>\n

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Fig(5) \\W (Not word characters)<\/figcaption><\/figure>\n

\\D (Not digit characters)<\/strong>
\n\\D \u1000\u1010\u1031\u102c\u1037 \\d \u1014\u1032\u1037 \u1015\u103c\u1031\u102c\u1004\u103a\u1038\u1015\u103c\u1014\u103a\u1016\u103c\u1005\u103a\u1015\u103c\u102e\u1038 digit characters (0 to 9) \u1019\u101f\u102f\u1010\u103a\u1010\u1032\u1037 \u1021\u1001\u103c\u102c\u1038 characters \u1010\u103d\u1031\u1000\u102d\u102f \u101c\u102d\u102f\u1001\u103b\u1004\u103a\u1010\u1032\u1037\u1021\u1001\u102b\u1019\u103e\u102c \u1021\u101e\u102f\u1036\u1038\u1015\u103c\u102f\u1010\u1032\u1037 pattern \u1010\u1005\u103a\u1001\u102f \u1016\u103c\u1005\u103a\u1015\u102b\u1010\u101a\u103a\u104b<\/p>\n

\"\"
Fig(6) \\D (Not digit characters)<\/figcaption><\/figure>\n

\\S (Not whitespace character)<\/strong>
\n\\S \u1000\u1010\u1031\u102c\u1037 \\s \u1014\u1032\u1037 \u1015\u103c\u1031\u102c\u1004\u103a\u1038\u1015\u103c\u1014\u103a\u1016\u103c\u1005\u103a\u1015\u103c\u102e\u1038 Whitespace Character ( ) \u1019\u101f\u102f\u1010\u103a\u1010\u1032\u1037 \u1021\u1001\u103c\u102c\u1038 characters \u1010\u103d\u1031\u1000\u102d\u102f \u101c\u102d\u102f\u1001\u103b\u1004\u103a\u1010\u1032\u1037\u1021\u1001\u102b\u1019\u103e\u102c \u1021\u101e\u102f\u1036\u1038\u1015\u103c\u102f\u1010\u1032\u1037 pattern \u1010\u1005\u103a\u1001\u102f \u1016\u103c\u1005\u103a\u1015\u102b\u1010\u101a\u103a\u104b<\/p>\n

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Fig(7) \\S (Not whitespace character)<\/figcaption><\/figure>\n

[abc] (Character set)<\/strong>
\n\/[abc]\/ \u101c\u1031\u1038\u1011\u1031\u102c\u1004\u103a\u1037\u1000\u103d\u1004\u103a\u1038\u1021\u1010\u103d\u1004\u103a\u1038\u101b\u1031\u1038\u1010\u1032\u1037 regex pattern \u1000\u1010\u1031\u102c\u1037 Characters \u1010\u103d\u1031\u1021\u1019\u103b\u102c\u1038\u1000\u103c\u102e\u1038\u1010\u103d\u1031\u1019\u103e \u1019\u102d\u1019\u102d\u101c\u102d\u102f\u1001\u103b\u1004\u103a\u1010\u1032\u1037 character \u1021\u1001\u103b\u102d\u102f\u1037\u1000\u102d\u102f\u1015\u1032 match \u1016\u103c\u1005\u103a\u1005\u1031\u1001\u103b\u1004\u103a\u1010\u1032\u1037\u1021\u1001\u102b\u1019\u103e\u102c \u1021\u101e\u102f\u1036\u1038\u1015\u103c\u102f\u1010\u1032\u1037 pattern \u1010\u1005\u103a\u1001\u102f \u1016\u103c\u1005\u103a\u1015\u102b\u1010\u101a\u103a\u104b<\/p>\n

\"\"
Fig(8) [abc] (Character set)<\/figcaption><\/figure>\n

[^abc] (Not character set)<\/strong>
\n\/[^abc]\/ regex pattern \u1000\u1010\u1031\u102c\u1037 \u101c\u1031\u1038\u1011\u1031\u102c\u1004\u103a\u1037\u1000\u103d\u1004\u103a\u1038\u1011\u1032\u1000 character \u1010\u103d\u1031\u1019\u101f\u102f\u1010\u103a\u1010\u1032\u1037 \u1021\u1001\u103c\u102c\u1038 characters \u1010\u103d\u1031\u1000\u102d\u102f \u101c\u102d\u102f\u1001\u103b\u1004\u103a\u1010\u1032\u1037\u1021\u1001\u102b\u1019\u103e\u102c \u1021\u101e\u102f\u1036\u1038\u1015\u103c\u102f\u1010\u1032\u1037 pattern \u1010\u1005\u103a\u1001\u102f \u1016\u103c\u1005\u103a\u1015\u102b\u1010\u101a\u103a\u104b<\/p>\n

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Fig(9) [^abc] (Not character set)<\/figcaption><\/figure>\n

[a-zA-Z0-9] (character between a to z, A to Z & 0 to 9)<\/strong>
\n\/[a-z]\/ hyphen(-) \u1001\u1036\u1015\u103c\u102e\u1038\u101b\u1031\u1038\u1010\u1032\u1037 regex pattern \u1000\u1010\u1031\u102c\u1037 abcdef \u1006\u102d\u102f\u1015\u103c\u102e\u1038 \u1021\u101b\u103e\u100a\u103a\u101b\u1031\u1038\u1014\u1031\u1005\u101b\u102c\u1019\u101c\u102d\u102f\u1018\u1032 \u1019\u102d\u1019\u102d\u101c\u102d\u102f\u1001\u103b\u1004\u103a\u1010\u1032\u1037 character \u1021\u1015\u102d\u102f\u1004\u103a\u1038\u1021\u1001\u103c\u102c\u1038\u1000\u102d\u102f [a-f] hyphen (-) \u1001\u1036\u1000\u102c \u1021\u101e\u102f\u1036\u1038\u1015\u103c\u102f\u1010\u1032\u1037 pattern \u1010\u1005\u103a\u1001\u102f \u1016\u103c\u1005\u103a\u1015\u102b\u1010\u101a\u103a\u104b \/[a-f]\/ \u1006\u102d\u102f\u101b\u1004\u103a a \u1000\u1014\u1031\u1037 f \u1021\u1011\u102d characters (abcdef) \u104a [1-5] \u1006\u102d\u102f\u101b\u1004\u103a 1 \u1000\u1014\u1031 5 \u1021\u1011\u102d characters (1,2,3,4,5) \u1021\u1005\u101b\u103e\u102d\u101e\u1016\u103c\u1004\u103a\u1037 -(hyphen) \u1001\u1036\u1015\u103c\u102e\u1038 \u101b\u1031\u1038\u1015\u1031\u1038\u101b\u1019\u103e\u102c\u1016\u103c\u1005\u103a\u1015\u102b\u1010\u101a\u103a\u104b<\/p>\n

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Fig(10) [a-zA-Z0-9] (character between a to z, A to Z & 0 to 9)<\/figcaption><\/figure>\n

\u1021\u1015\u102d\u102f\u1004\u103a\u1038(\u1042) \u1000\u1010\u1031\u102c\u1037 Quantifiers & Alternation \u1021\u1000\u103c\u1031\u102c\u1004\u103a\u1038\u1016\u103c\u1005\u103a\u1015\u102b\u1010\u101a\u103a\u104b
\na* (0 or more)<\/strong>
\n* \u1000\u1010\u1031\u102c\u1037 \u101e\u102f\u100a (\u101e\u102d\u102f\u1037) \u1010\u1005\u103a\u1001\u102f\u1014\u103e\u1004\u103a\u1037\u1010\u1005\u103a\u1001\u102f\u1011\u1000\u103a\u1015\u102d\u102f \u1006\u102d\u102f\u1010\u1032\u1037\u1021\u1013\u102d\u1015\u1039\u1015\u102b\u101a\u103a \u1016\u103c\u1005\u103a\u1015\u102b\u1010\u101a\u103a\u104b ca* \u1006\u102d\u102f\u1010\u1032\u1037 regex pattern \u1019\u103e\u102c\u1006\u102d\u102f\u101b\u1004\u103a c \u101b\u1032\u1037 \u1021\u1014\u1031\u102c\u1000\u103a\u1019\u103e\u102c a \u1015\u102b\u1010\u1032\u1037 sequence of characters \u1010\u103d\u1031\u101c\u100a\u103a\u1038 match \u1016\u103c\u1005\u103a\u1010\u101a\u103a\u104a \u1019\u1015\u102b\u1010\u1032\u1037 sequence of characters \u1010\u103d\u1031\u1000\u101c\u100a\u103a\u1038 match \u1016\u103c\u1005\u103a\u1010\u101a\u103a\u101c\u102d\u102f\u1037\u1006\u102d\u102f\u101c\u102d\u102f\u1010\u102c \u1016\u103c\u1005\u103a\u1015\u102b\u1010\u101a\u103a\u104b<\/p>\n

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Fig(11) a* (0 or more)<\/figcaption><\/figure>\n

a+ (1 or more)<\/strong>
\n+ \u1000\u1010\u1031\u102c\u1037 \u1010\u1005\u103a\u1001\u102f (\u101e\u102d\u102f\u1037) \u1010\u1005\u103a\u1001\u102f\u1011\u1000\u103a\u1015\u102d\u102f \u1006\u102d\u102f\u1010\u1032\u1037\u1021\u1013\u102d\u1015\u1039\u1015\u102b\u101a\u103a \u1016\u103c\u1005\u103a\u1015\u102b\u1010\u101a\u103a\u104b ca+ \u1006\u102d\u102f\u1010\u1032\u1037 regex pattern \u1019\u103e\u102c\u1006\u102d\u102f\u101b\u1004\u103a c \u101b\u1032\u1037 \u1021\u1014\u1031\u102c\u1000\u103a\u1019\u103e\u102c a \u1010\u1005\u103a\u1001\u102f \u1021\u1014\u100a\u103a\u1038\u1006\u102f\u1036\u1038\u1015\u102b\u101d\u1004\u103a\u1010\u1032\u1037 \u1005\u1000\u102c\u1038\u1005\u102f\u1010\u103d\u1031\u101e\u102c match \u1016\u103c\u1005\u103a\u1010\u101a\u103a\u101c\u102d\u102f\u1037\u1006\u102d\u102f\u101c\u102d\u102f\u1010\u102c \u1016\u103c\u1005\u103a\u1015\u102b\u1010\u101a\u103a\u104b<\/p>\n

\"\"
Fig(12) a+ (1 or more)<\/figcaption><\/figure>\n

a? (0 or 1)<\/strong>
\n? \u1000\u1010\u1031\u102c\u1037 \u101e\u102f\u100a (\u101e\u102d\u102f\u1037) \u1010\u1005\u103a\u1001\u102f \u1006\u102d\u102f\u1010\u1032\u1037\u1021\u1013\u102d\u1015\u1039\u1015\u102b\u101a\u103a \u1016\u103c\u1005\u103a\u1015\u102b\u1010\u101a\u103a\u104b ca? \u1006\u102d\u102f\u1010\u1032\u1037 regex pattern \u1019\u103e\u102c\u1006\u102d\u102f\u101b\u1004\u103a c \u101b\u1032\u1037 \u1021\u1014\u1031\u102c\u1000\u103a\u1019\u103e\u102c a \u1010\u1005\u103a\u1001\u102f (\u101e\u102d\u102f\u1037) a \u1019\u1015\u102b\u1010\u1032\u1037 \u1005\u1000\u102c\u1038\u1005\u102f \u1010\u103d\u1031 match \u1016\u103c\u1005\u103a\u1010\u101a\u103a\u101c\u102d\u102f\u1037\u1006\u102d\u102f\u101c\u102d\u102f\u1010\u102c \u1016\u103c\u1005\u103a\u1015\u102b\u1010\u101a\u103a\u104b<\/p>\n

\"\"
Fig(13) a? (0 or 1)<\/figcaption><\/figure>\n

a{3} (Exactly 3)<\/strong>
\n{3} \u1000\u1010\u1031\u102c\u1037 \u101e\u102f\u1036\u1038\u1001\u102f \u1021\u1010\u102d\u1021\u1000\u103b\u101c\u102d\u102f\u1037 \u1006\u102d\u102f\u101c\u102d\u102f\u1010\u102c\u1016\u103c\u1005\u103a\u1015\u102b\u1010\u101a\u103a\u104b ca{3} \u1006\u102d\u102f\u1010\u1032\u1037 regex pattern \u1019\u103e\u102c\u1006\u102d\u102f\u101b\u1004\u103a c \u101b\u1032\u1037 \u1021\u1014\u1031\u102c\u1000\u103a\u1019\u103e\u102c a \u101e\u102f\u1036\u1038\u1001\u102f \u1021\u1010\u102d\u1021\u1000\u103b\u1015\u102b\u1010\u1032\u1037 \u1005\u1000\u102c\u1038\u1005\u102f\u1010\u103d\u1031 match \u1016\u103c\u1005\u103a\u1010\u101a\u103a\u101c\u102d\u102f\u1037\u1006\u102d\u102f\u101c\u102d\u102f\u1010\u102c \u1016\u103c\u1005\u103a\u1015\u102b\u1010\u101a\u103a\u104b<\/p>\n

\"\"
Fig(14) a{3} (Exactly 3)<\/figcaption><\/figure>\n

a{3,} (3 or more)<\/strong>
\n{3,} \u1000\u1010\u1031\u102c\u1037 \u101e\u102f\u1036\u1038\u1001\u102f (\u101e\u102d\u102f\u1037) \u101e\u102f\u1036\u1038\u1001\u102f\u1014\u103e\u1004\u103a\u1037\u1021\u1011\u1000\u103a\u101c\u102d\u102f\u1037 \u1006\u102d\u102f\u101c\u102d\u102f\u1010\u102c\u1016\u103c\u1005\u103a\u1015\u102b\u1010\u101a\u103a\u104b ca{3,} \u1006\u102d\u102f\u1010\u1032\u1037 regex pattern \u1019\u103e\u102c\u1006\u102d\u102f\u101b\u1004\u103a c \u101b\u1032\u1037 \u1021\u1014\u1031\u102c\u1000\u103a\u1019\u103e\u102c a \u101e\u102f\u1036\u1038\u1001\u102f (\u101e\u102d\u102f\u1037) \u101e\u102f\u1036\u1038\u1001\u102f\u1014\u103e\u1004\u103a\u1037\u1021\u1011\u1000\u103a \u1015\u102b\u1010\u1032\u1037 \u1005\u1000\u102c\u1038\u1005\u102f \u1010\u103d\u1031 match \u1016\u103c\u1005\u103a\u1010\u101a\u103a\u101c\u102d\u102f\u1037\u1006\u102d\u102f\u101c\u102d\u102f\u1010\u102c \u1016\u103c\u1005\u103a\u1015\u102b\u1010\u101a\u103a\u104b<\/p>\n

\"\"
Fig(15) a{3,} (3 or more)<\/figcaption><\/figure>\n

a{1,3} (between 1 and 3}<\/strong>
\n{1,3) \u1000\u1010\u1031\u102c\u1037 \u1010\u1005\u103a\u1001\u102f \u1014\u103e\u1004\u103a\u1037 \u101e\u102f\u1036\u1038\u1001\u102f\u1000\u103c\u102c\u1038\u101c\u102d\u102f\u1037 \u1006\u102d\u102f\u101c\u102d\u102f\u1010\u102c\u1016\u103c\u1005\u103a\u1015\u102b\u1010\u101a\u103a\u104b ca{3,} \u1006\u102d\u102f\u1010\u1032\u1037 regex pattern \u1019\u103e\u102c\u1006\u102d\u102f\u101b\u1004\u103a c \u101b\u1032\u1037 \u1021\u1014\u1031\u102c\u1000\u103a\u1019\u103e\u102c a \u1010\u1005\u103a\u1001\u102f\u1014\u103e\u1004\u103a\u1037 \u101e\u102f\u1036\u1038\u1001\u102f\u1000\u103c\u102c\u1038\u1015\u102b\u1010\u1032\u1037 \u1005\u1000\u102c\u1038\u1005\u102f\u1010\u103d\u1031 match \u1016\u103c\u1005\u103a\u1010\u101a\u103a\u101c\u102d\u102f\u1037\u1006\u102d\u102f\u101c\u102d\u102f\u1010\u102c \u1016\u103c\u1005\u103a\u1015\u102b\u1010\u101a\u103a\u104b<\/p>\n

\"\"
Fig(16) a{1,3} (between 1 and 3}<\/figcaption><\/figure>\n

ab|cd|ef (alternation)<\/strong>
\nab|cd|ef \u1019\u103e\u102c\u1015\u102b\u1010\u1032\u1037 | \u1000\u1010\u1031\u102c\u1037 (or) \u1006\u102d\u102f\u1010\u1032\u1037 \u1021\u1013\u102d\u1015\u1039\u1015\u102b\u101a\u103a \u1016\u103c\u1005\u103a\u1015\u102b\u1010\u101a\u103a\u104b ab (\u101e\u102d\u102f\u1037) cd (\u101e\u102d\u102f\u1037) ef \u1015\u102b\u1010\u1032\u1037 \u1005\u1000\u102c\u1038\u1005\u102f \u1010\u103d\u1031 match \u1016\u103c\u1005\u103a\u1010\u101a\u103a\u101c\u102d\u102f\u1037\u1006\u102d\u102f\u101c\u102d\u102f\u1010\u102c \u1016\u103c\u1005\u103a\u1015\u102b\u1010\u101a\u103a\u104b<\/p>\n

\"\"
Fig(17) ab|cd|ef (alternation)<\/figcaption><\/figure>\n

\u1021\u1015\u102d\u102f\u1004\u103a\u1038(\u1043) \u1000\u1010\u1031\u102c\u1037 Anchors & Boundaries \u1021\u1000\u103c\u1031\u102c\u1004\u103a\u1038\u1016\u103c\u1005\u103a\u1015\u102b\u1010\u101a\u103a\u104b
\n\/^\/ (start of the string)<\/strong>
\n\/^\/ \u1000\u1010\u1031\u102c\u1037 \u1005\u102c\u1000\u103c\u1031\u102c\u1004\u103a\u1038\u1010\u103d\u1031\u1021\u1019\u103b\u102c\u1038\u1000\u103c\u102e\u1038\u1011\u1032\u1019\u103e \u1019\u102d\u1019\u102d\u1021\u1005\u1015\u103c\u102f\u1005\u1031\u1001\u103b\u1004\u103a\u1010\u1032\u1037 character \u1010\u103d\u1031\u1015\u102b\u101d\u1004\u103a\u1010\u1032\u1037 \u1005\u102c\u1000\u103c\u1031\u102c\u1004\u103a\u1038\u1000\u102d\u102f \u101b\u101a\u1030\u101c\u102d\u102f\u1010\u1032\u1037\u1021\u1001\u102b\u1019\u103b\u102d\u102f\u1038\u1019\u103e\u102c \u1021\u101e\u102f\u1036\u1038\u1015\u103c\u102f\u1010\u1032\u1037 pattern \u1016\u103c\u1005\u103a\u1015\u102b\u1010\u101a\u103a\u104b \/^Wh(.)*\/ regex pattern \u1006\u102d\u102f\u101b\u1004\u103a Wh \u1014\u1032\u1037 \u1005\u1010\u1032\u1037 \u1005\u102c\u1000\u103c\u1031\u102c\u1004\u103a\u1038\u1010\u103d\u1031\u101e\u100a\u103a match \u1016\u103c\u1005\u103a\u1010\u101a\u103a\u101c\u102d\u102f\u1037 \u1006\u102d\u102f\u101c\u102d\u102f\u1010\u102c\u1016\u103c\u1005\u103a\u1015\u102b\u1010\u101a\u103a\u104b<\/p>\n

\"\"
Fig(18) \/^\/ (start of the string)<\/figcaption><\/figure>\n

\/$\/ (end of the string)<\/strong>
\n\/^\/ \u1000\u1010\u1031\u102c\u1037 \u1005\u102c\u1000\u103c\u1031\u102c\u1004\u103a\u1038\u1010\u103d\u1031\u1021\u1019\u103b\u102c\u1038\u1000\u103c\u102e\u1038\u1011\u1032\u1019\u103e \u1019\u102d\u1019\u102d\u1021\u1006\u102f\u1036\u1038\u101e\u1010\u103a\u1005\u1031\u1001\u103b\u1004\u103a\u1010\u1032\u1037 character \u1010\u103d\u1031\u1015\u102b\u101d\u1004\u103a\u1010\u1032\u1037 \u1005\u102c\u1000\u103c\u1031\u102c\u1004\u103a\u1038\u1000\u102d\u102f \u101b\u101a\u1030\u101c\u102d\u102f\u1010\u1032\u1037\u1021\u1001\u102b\u1019\u103b\u102d\u102f\u1038\u1019\u103e\u102c \u1021\u101e\u102f\u1036\u1038\u1015\u103c\u102f\u1010\u1032\u1037 pattern \u1016\u103c\u1005\u103a\u1015\u102b\u1010\u101a\u103a\u104b \/(.)*big.$\/ regex pattern \u1006\u102d\u102f\u101b\u1004\u103a big. \u1014\u1032\u1037 \u1006\u102f\u1036\u1038\u1010\u1032\u1037 \u1005\u102c\u1000\u103c\u1031\u102c\u1004\u103a\u1038\u1010\u103d\u1031\u101e\u100a\u103a match \u1016\u103c\u1005\u103a\u1010\u101a\u103a\u101c\u102d\u102f\u1037\u1006\u102d\u102f\u101c\u102d\u102f\u1010\u102c \u1016\u103c\u1005\u103a\u1015\u102b\u1010\u101a\u103a\u104b<\/p>\n

\"\"
Fig(19) \/$\/ (end of the string)<\/figcaption><\/figure>\n

\\b (word boundary)<\/strong>
\n\\b \u1000\u1010\u1031\u102c\u1037 word boundary \u1006\u102d\u102f\u1010\u1032\u1037 \u1021\u1010\u102d\u102f\u1004\u103a\u1038 \u1005\u1000\u102c\u1038\u101c\u102f\u1036\u1038\u1010\u103d\u1031\u1000\u102d\u102f \u1018\u1031\u102c\u1004\u103a\u1001\u1010\u103a\u101c\u102d\u102f\u1000\u103a\u1001\u103c\u1004\u103a\u1038\u1015\u1032\u1016\u103c\u1005\u103a\u1015\u102b\u1010\u101a\u103a\u104b \/ward\/ regex pattern \u1006\u102d\u102f\u101b\u1004\u103a ward \u1000 string \u1010\u1005\u103a\u1001\u102f\u101b\u1032\u1037 \u1018\u101a\u103a\u1014\u1031\u101b\u102c\u1019\u103e\u102c\u1019\u1006\u102d\u102f \u1015\u102b\u1014\u1031\u101b\u1004\u103a match \u1016\u103c\u1005\u103a\u1010\u101a\u103a\u101c\u102d\u102f\u1037\u1006\u102d\u102f\u101c\u102d\u102f\u1015\u102b\u1010\u101a\u103a\u104b \u1025\u1015\u1019\u102c wardrobe, forward. \\\/bward\\b\/ regex pattern \u1019\u103e\u102c\u1000\u1010\u1031\u102c\u1037 ward \u1006\u102d\u102f\u1010\u1032\u1037 \u1005\u1000\u102c\u1038\u1005\u102f\u1021\u1010\u102d\u102f\u1004\u103a\u1038 (only ward) \u1019\u103e\u101e\u102c match \u1016\u103c\u1005\u103a\u1010\u101a\u103a\u101c\u102d\u102f\u1037\u1006\u102d\u102f\u101c\u102d\u102f\u1015\u102b\u1010\u101a\u103a\u104b<\/p>\n

\"\"
Fig(20) Without word boundary<\/figcaption><\/figure>\n
\"\"
Fig(21) \\b (With word boundary)<\/figcaption><\/figure>\n

\u1021\u1015\u102d\u102f\u1004\u103a\u1038(\u1044) \u1000\u1010\u1031\u102c\u1037 groups & lookaround \u1021\u1000\u103c\u1031\u102c\u1004\u103a\u1038\u1016\u103c\u1005\u103a\u1015\u102b\u1010\u101a\u103a\u104b
\n(abc) (Capturing Group)<\/strong>
\n(abc) regex pattern \u1000\u1010\u1031\u102c\u1037 \u101c\u1000\u103a\u101e\u100a\u103a\u1038\u1000\u103d\u1004\u103a\u1038\u1021\u1010\u103d\u1004\u103a\u1038\u101b\u1031\u1038\u1011\u102c\u1038\u1010\u1032\u1037 character \u1010\u103d\u1031\u1000\u102d\u102f group \u1021\u1016\u103c\u1005\u103a\u101e\u1010\u103a\u1019\u103e\u1010\u103a\u1015\u1031\u1038\u1010\u1032\u1037 pattern \u1016\u103c\u1005\u103a\u1015\u102b\u1010\u101a\u103a\u104b \/(This)(cat)(is)(cute).\/ regex pattern \u1019\u103e\u102c\u1006\u102d\u102f\u101b\u1004\u103a (This) \u101e\u100a\u103a group1, (cat) \u101e\u100a\u103a group 2, (is) \u101e\u100a\u103a group 3 \u1014\u103e\u1004\u103a\u1037 (cute) \u101e\u100a\u103a group4 \u1006\u102d\u102f\u1015\u103c\u102e\u1038 capturing group (\u1044)\u1001\u102f \u1015\u102b\u101d\u1004\u103a\u1019\u103e\u102c\u1016\u103c\u1005\u103a\u1015\u102b\u1010\u101a\u103a\u104b<\/p>\n

\"\"
Fig(22) (abc) (Capturing Group)<\/figcaption><\/figure>\n

(?<<name>>abc) (Named capturing group)<\/strong>
\n(?<<name>>abc) Capturing Group \u1010\u103d\u1031\u1000\u102d\u102f name \u1015\u1031\u1038\u1001\u103b\u1004\u103a\u1015\u102b\u1000 (?<<custom_name>>abc) \u1006\u102d\u102f\u1015\u103c\u102e\u1038 \u101b\u1031\u1038\u1015\u1031\u1038\u101b\u1019\u103e\u102c\u1016\u103c\u1005\u103a\u1015\u102b\u1010\u101a\u103a\u104b <> \u1000\u1015\u102f\u1036\u1015\u102b\u1010\u102d\u102f\u1004\u103a\u1038\u1010\u1005\u103a\u1001\u102f\u101e\u102c\u101b\u1031\u1038\u101b\u1014\u103a\u101c\u102d\u102f\u1021\u1015\u103a\u1015\u102b\u1010\u101a\u103a\u104b Editor \u1019\u103e\u102c\u1000 \u1011\u102d\u102f\u101e\u1004\u103a\u1039\u1000\u1031\u1010\u1010\u103d\u1031\u101e\u100a\u103a \u1014\u103e\u1005\u103a\u1001\u102b\u101b\u1031\u1038\u1019\u103e\u101e\u102c \u1015\u1031\u102b\u103a\u1010\u1032\u1037\u1021\u1010\u103d\u1000\u103a \u1042\u1001\u102b\u101b\u1031\u1038\u1011\u102c\u1038\u1001\u103c\u1004\u103a\u1038\u1016\u103c\u1005\u103a\u1015\u102b\u1010\u101a\u103a\u104b<\/p>\n

\"\"
Fig(23) (?<<name>>abc) (Named capturing group)<\/figcaption><\/figure>\n

\\1\\2 (Back reference)<\/strong>
\n\\1\\2 \u1000\u1010\u1031\u102c\u1037 \u1021\u101b\u103e\u1031\u1037\u1019\u103e\u102c\u101b\u103e\u102d\u1010\u1032\u1037 capturing group() \u101b\u1032\u1037 pattern \u1000\u1014\u1031 \u1005\u1005\u103a\u101c\u102d\u102f\u1000\u103a\u101c\u102d\u102f\u1037 match \u1016\u103c\u1005\u103a\u1010\u1032\u1037 characters \u1010\u103d\u1031\u1014\u1032\u1037 \u1021\u1001\u103c\u102c\u1038\u1014\u1031\u102c\u1000\u103a\u1010\u1005\u103a\u1014\u1031\u101b\u102c\u1019\u103e\u102c \u1006\u1000\u103a\u1015\u103c\u102e\u1038\u1010\u1031\u102c\u1037 match \u1016\u103c\u1005\u103a\u1019\u1016\u103c\u1005\u103a \u1005\u1005\u103a\u1001\u103b\u1004\u103a\u1010\u1032\u1037\u1021\u1001\u102b\u1019\u103b\u102d\u102f\u1038\u1019\u103e\u102c \u1014\u103e\u1005\u103a\u1001\u1031\u102b\u1000\u103a\u1019\u101b\u1031\u1038\u1018\u1032\u1014\u1032\u1037 Capturing group \u1016\u103d\u1032\u1037\u1015\u103c\u102e\u1038 \u1011\u102d\u102f group \u1000\u102d\u102f\u1015\u103c\u1014\u103a\u1001\u1031\u102b\u103a\u101e\u102f\u1036\u1038\u1010\u1032\u1037 pattern \u1016\u103c\u1005\u103a\u1015\u102b\u1010\u101a\u103a\u104b \/(100)\u2014(10)-\\1-\\2\/ regex pattern \u1019\u103e\u102c\u1006\u102d\u102f\u101b\u1004\u103a \\1 \u1000 group1 \u1016\u103c\u1005\u103a\u1010\u1032\u1037 (100) \u1000\u102d\u102f\u1000\u102d\u102f\u101a\u103a\u1005\u102c\u1038\u1015\u103c\u102f\u1015\u103c\u102e\u1038 \\2 \u1000\u1010\u1031\u102c\u1037 group2 \u1016\u103c\u1005\u103a\u1010\u1032\u1037 (10) \u1000\u102d\u102f\u1000\u102d\u102f\u101a\u103a\u1005\u102c\u1038\u1015\u103c\u102f\u1010\u102c\u1016\u103c\u1005\u103a\u1015\u102b\u1010\u101a\u103a\u104b \u1011\u102d\u102f\u1037\u1021\u1010\u103d\u1000\u103a\u1000\u103c\u1031\u102c\u1004\u103a\u1037 \u1021\u1001\u102f\u101c\u102d\u102f\u1015\u102f\u1036\u1005\u1036\u1019\u103b\u102d\u102f\u1038 \/(100)\u2014(10)-100-10\/ pattern \u1000\u102d\u102f \u1042\u1001\u102b\u1015\u103c\u1014\u103a\u101b\u1031\u1038\u1014\u1031\u1005\u101b\u102c\u1019\u101c\u102d\u102f\u1018\u1032 \\1\\2 \u1006\u102d\u102f\u1015\u103c\u102e\u1038 \u1021\u1005\u102c\u1038\u1011\u102d\u102f\u1038\u1021\u101e\u102f\u1036\u1038\u1015\u103c\u102f\u1014\u102d\u102f\u1004\u103a\u1019\u103e\u102c\u1016\u103c\u1005\u103a\u1015\u102b\u1010\u101a\u103a\u104b \u1021\u1000\u101a\u103a\u104d named capturing group \u1010\u103d\u1031\u1000\u102d\u102f group \u1014\u102c\u1019\u100a\u103a\u1016\u103c\u1004\u103a\u1037\u1001\u1031\u102b\u103a\u101e\u102f\u1036\u1038\u1001\u103b\u1004\u103a\u1015\u102b\u1000 \/(?100)-(?10)-\\k<<g1>>-\\k<<g2>>\/ \u101a\u1001\u102f\u1000\u1032\u1037\u101e\u102d\u102f\u1037 \\1\\2 \u1021\u1005\u102c\u1038 \\k \u1014\u1031\u102c\u1000\u103a\u1019\u103e\u102c \u1019\u102d\u1019\u102d\u1015\u1031\u1038\u1011\u102c\u1038\u1010\u1032\u1037 group name \u1000\u102d\u102f \u101b\u1031\u1038\u1015\u1031\u1038\u101b\u1019\u103e\u102c\u1016\u103c\u1005\u103a\u1015\u102b\u1010\u101a\u103a\u104b<\/p>\n

\"\"
Fig(24) \\1\\2 (Back reference)<\/figcaption><\/figure>\n
\"\"
Fig(25) \\1\\2 (Back reference with named capturing group)<\/figcaption><\/figure>\n

(?:abc) (Non capturing group)<\/strong>
\n(?:abc) regex pattern \u1000\u1010\u1031\u102c\u1037 capturing group \u1016\u103d\u1004\u103a\u1037\u101c\u102d\u102f\u1000\u103a\u1015\u1031\u1019\u101a\u103a\u1037 \u1011\u102d\u102f group \u1000\u102d\u102f \u1019\u101e\u102f\u1036\u1038\u1001\u103b\u1004\u103a\u1018\u1032 skip \u101c\u102f\u1015\u103a\u1005\u1031\u1001\u103b\u1004\u103a\u1010\u1032\u1037\u1021\u1001\u102b\u1019\u103b\u102d\u102f\u1038\u1019\u103e\u102c \u1021\u101e\u102f\u1036\u1038\u1015\u103c\u102f\u1010\u1032\u1037 pattern \u1016\u103c\u1005\u103a\u1015\u102b\u1010\u101a\u103a\u104b<\/p>\n

\"\"
Fig(26) Non capturing group<\/figcaption><\/figure>\n

(?=abc) (Positive lookahead)<\/strong>
\n(?=abc) regex pattern \u1000\u1010\u1031\u102c\u1037 3 cats, 3 dogs, 3 horses \u1006\u102d\u102f\u1010\u1032\u1037 string \u1010\u1005\u103a\u1001\u102f \u101b\u103e\u102d\u1010\u101a\u103a\u1006\u102d\u102f\u1015\u102b\u1005\u102d\u102f\u1037\u104b \u1021\u1032\u1037\u1021\u1011\u1032\u1000\u1019\u103e horses \u101b\u1032\u1037\u1021\u101b\u103e\u1031\u1037\u1000 3 \u1006\u102d\u102f\u1010\u1032\u1037 character \u1010\u103d\u1031\u1000\u102d\u102f \u101c\u102d\u102f\u1001\u103b\u1004\u103a\u1010\u1032\u1037\u1021\u1001\u102b\u1019\u103b\u102d\u102f\u1038\u1019\u103e\u102c \u1021\u101e\u102f\u1036\u1038\u1015\u103c\u102f\u1010\u1032\u1037 pattern \u1016\u103c\u1005\u103a\u1015\u102b\u1010\u101a\u103a\u104b<\/p>\n

\"\"
Fig(27) (?=abc) (Positive lookahead)<\/figcaption><\/figure>\n

(?!abc) (Negative lookahead)<\/strong>
\n(?!abc) regex pattern \u1000\u1010\u1031\u102c\u1037 3 cats, 3 dogs, 3 horses \u1006\u102d\u102f\u1010\u1032\u1037 string \u1010\u1005\u103a\u1001\u102f \u101b\u103e\u102d\u1010\u101a\u103a\u1006\u102d\u102f\u1015\u102b\u1005\u102d\u102f\u1037\u104b \u1021\u1032\u1037\u1021\u1011\u1032\u1000\u1019\u103e horses \u101b\u1032\u1037\u1021\u101b\u103e\u1031\u1037\u1000 3\u1000\u101c\u103d\u1032\u1015\u103c\u102e\u1038 cats \u1014\u1032\u1037 dogs \u1021\u101b\u103e\u1031\u1037\u1000 3 character \u1010\u103d\u1031\u1000\u102d\u102f \u101c\u102d\u102f\u1001\u103b\u1004\u103a\u1010\u1032\u1037\u1021\u1001\u102b\u1019\u103b\u102d\u102f\u1038\u1019\u103e\u102c \u1021\u101e\u102f\u1036\u1038\u1015\u103c\u102f\u1010\u1032\u1037 pattern \u1016\u103c\u1005\u103a\u1015\u102b\u1010\u101a\u103a\u104b<\/p>\n

\"\"
Fig(28) (?!abc) (Negative lookahead)<\/figcaption><\/figure>\n

(?<=abc) (Positive lookbehind)<\/strong>
\n(?<=abc) regex pattern \u1000\u1010\u1031\u102c\u1037 Dollar 100, Euro 10, MMK 1000, Yen 10000 \u1006\u102d\u102f\u1010\u1032\u1037 string \u1010\u1005\u103a\u1001\u102f \u101b\u103e\u102d\u1010\u101a\u103a\u1006\u102d\u102f\u1015\u102b\u1005\u102d\u102f\u1037\u104b \u1021\u1032\u1037\u1021\u1011\u1032\u1000\u1019\u103e MMK \u1006\u102d\u102f\u1010\u1032\u1037 \u1021\u1014\u1031\u102c\u1000\u103a\u1019\u103e\u102c\u101b\u103e\u102d\u1010\u1032\u1037 digit characters \u1010\u103d\u1031\u1000\u102d\u102f \u101c\u102d\u102f\u1001\u103b\u1004\u103a\u1010\u1032\u1037\u1021\u1001\u102b\u1019\u103b\u102d\u102f\u1038\u1019\u103e\u102c \u1021\u101e\u102f\u1036\u1038\u1015\u103c\u102f\u1010\u1032\u1037 pattern \u1016\u103c\u1005\u103a\u1015\u102b\u1010\u101a\u103a\u104b<\/p>\n

\"\"
Fig(29) (?<=abc) (Positive lookbehind)<\/figcaption><\/figure>\n

(?<!abc) (Negative lookbehind)<\/strong>
\n(?<!abc) regex pattern \u1000\u1010\u1031\u102c\u1037 Dollar 100, Euro 10, MMK 1000, Yen 10000 \u1006\u102d\u102f\u1010\u1032\u1037 string \u1010\u1005\u103a\u1001\u102f \u101b\u103e\u102d\u1010\u101a\u103a\u1006\u102d\u102f\u1015\u102b\u1005\u102d\u102f\u1037\u104b \u1021\u1032\u1037\u1021\u1011\u1032\u1000\u1019\u103e MMK \u1006\u102d\u102f\u1010\u1032\u1037 \u1021\u1014\u1031\u102c\u1000\u103a\u1019\u103e\u102c\u101b\u103e\u102d\u1010\u1032\u1037 digit characters \u1000\u101c\u103d\u1032\u1015\u103c\u102e\u1038 Dollar, Euro, Yen \u1010\u102d\u102f\u101b\u1032\u1037 \u1021\u1014\u1031\u102c\u1000\u103a\u1000 digit characters \u1010\u103d\u1031\u1000\u102d\u102f \u101c\u102d\u102f\u1001\u103b\u1004\u103a\u1010\u1032\u1037\u1021\u1001\u102b\u1019\u103b\u102d\u102f\u1038\u1019\u103e\u102c \u1021\u101e\u102f\u1036\u1038\u1015\u103c\u102f\u1010\u1032\u1037 pattern \u1016\u103c\u1005\u103a\u1015\u102b\u1010\u101a\u103a\u104b<\/p>\n

\"\"
Fig(30) (?<!abc) (Negative lookbehind)<\/figcaption><\/figure>\n

\u1021\u1015\u102d\u102f\u1004\u103a\u1038(\u1045) \u1000\u1010\u1031\u102c\u1037 Flags \u1021\u1000\u103c\u1031\u102c\u1004\u103a\u1038\u1016\u103c\u1005\u103a\u1015\u102b\u1010\u101a\u103a\u104b
\n(\/.\/g)(global)<\/strong>
\nRegular Expression \u1019\u103e\u102c (\/.\/g) g flag \u101e\u100a\u103a \u1021\u1019\u103b\u102c\u1038\u1006\u102f\u1036\u1038 \u1021\u101e\u102f\u1036\u1038\u1015\u103c\u102f\u1010\u1032\u1037 flag \u1016\u103c\u1005\u103a\u1015\u102b\u1010\u101a\u103a\u104b \u1021\u1000\u101a\u103a\u104d g flag \u101e\u102c\u1019\u1015\u102b\u101d\u1004\u103a\u1015\u102b\u1000 \u1019\u102d\u1019\u102d\u101b\u1031\u1038\u1011\u102c\u1038\u1010\u1032\u1037 pattern \u1014\u1032\u1037 \u1015\u1011\u1019\u1006\u102f\u1036\u1038 match \u1016\u103c\u1005\u103a\u1010\u1032\u1037 \u1005\u1000\u102c\u1038\u1005\u102f\u1010\u103d\u1031\u1000\u102d\u102f\u1015\u1032 match \u1016\u103c\u1005\u103a\u1010\u101a\u103a\u101c\u102d\u102f\u1037 \u101a\u1030\u1006\u1019\u103e\u102c\u1016\u103c\u1005\u103a\u1015\u102b\u1010\u101a\u103a\u104b<\/p>\n

\"\"
Fig(31) Without g (global) flag<\/figcaption><\/figure>\n
\"\"
Fig(32) With g (global) flag<\/figcaption><\/figure>\n

\/.\/i (Case Insensitive)<\/strong>
\ni flag \u1000\u1010\u1031\u102c\u1037 \u1005\u1000\u102c\u1038\u101c\u102f\u1036\u1038 \u1021\u1000\u103c\u102e\u1038 (uppercase) \u1016\u103c\u1005\u103a\u1016\u103c\u1005\u103a\u104a \u1021\u101e\u1031\u1038(lowercase) \u1016\u103c\u1005\u103a\u1016\u103c\u1005\u103a \u101c\u1000\u103a\u1001\u1036\u1010\u101a\u103a\u101c\u102d\u102f\u1037 \u1006\u102d\u102f\u101c\u102d\u102f\u1010\u1032\u1037 flag \u1016\u103c\u1005\u103a\u1015\u102b\u1010\u101a\u103a\u104b \/the\/i regex pattern \u1006\u102d\u102f\u101b\u1004\u103a the \u101e\u100a\u103a \u1021\u1000\u103c\u102e\u1038 \u1005\u1000\u102c\u1038\u101c\u102f\u1036\u1038\u1016\u103c\u1005\u103a\u1016\u103c\u1005\u103a \u1021\u101e\u1031\u1038\u1005\u1000\u102c\u1038\u101c\u102f\u1036\u1038\u1016\u103c\u1005\u103a\u1016\u103c\u1005\u103a match \u1016\u103c\u1005\u103a\u1010\u101a\u103a\u101c\u102d\u102f\u1037\u1006\u102d\u102f\u101c\u102d\u102f\u1015\u102b\u1010\u101a\u103a\u104b<\/p>\n

\"\"
Fig(33) i (Case Insensitive) flag<\/figcaption><\/figure>\n

\/^.$\/m (multiline)<\/strong>
\nM flag \u1000\u102d\u102f\u1010\u1031\u102c\u1037 ^(beginning) or $(end) \u1015\u102b\u101d\u1004\u103a\u1010\u1032\u1037 regex pattern \u1010\u103d\u1031\u1019\u103e\u102c \u1021\u101e\u102f\u1036\u1038\u1015\u103c\u102f\u1015\u102b\u1010\u101a\u103a\u104b \/^It(.)*\/m regex pattern \u1006\u102d\u102f\u101b\u1004\u103a It \u1014\u1032\u1037 \u1005\u1010\u1032\u1037 \u1005\u102c\u1000\u103c\u1031\u102c\u1004\u103a\u1038\u1010\u103d\u1031\u101e\u100a\u103a match \u1016\u103c\u1005\u103a\u1010\u101a\u103a\u101c\u102d\u102f\u1037 \u1006\u102d\u102f\u101c\u102d\u102f\u1010\u102c\u1016\u103c\u1005\u103a\u1015\u102b\u1010\u101a\u103a\u104b \u1021\u1000\u101a\u103a\u104d m flag \u101e\u102c\u1019\u1015\u102b\u1015\u102b\u1000 \u1015\u1011\u1019\u1006\u102f\u1036\u1038 match \u1016\u103c\u1005\u103a\u1010\u1032\u1037 \u1005\u102c\u1000\u103c\u1031\u102c\u1004\u103a\u1038\u1000\u102d\u102f\u1015\u1032 \u101c\u1000\u103a\u1001\u1036\u1019\u101a\u103a\u101c\u102d\u102f\u1037 \u101a\u1030\u1006\u101e\u103d\u102c\u1038\u1019\u103e\u102c\u1016\u103c\u1005\u103a\u1015\u102b\u1010\u101a\u103a\u104b<\/p>\n

\"\"
Fig(34) Without m (multiline) flag<\/figcaption><\/figure>\n

 <\/p>\n

\"\"
Fig(35) With m (multiline) flag<\/figcaption><\/figure>\n

\u1021\u1001\u102f\u1006\u102d\u102f\u101b\u1004\u103a\u1010\u1031\u102c\u1037 Regular Expression \u1021\u1000\u103c\u1031\u102c\u1004\u103a\u1038\u1000\u102d\u102f \u1014\u102c\u1038\u101c\u100a\u103a\u101e\u103d\u102c\u1038\u1019\u101a\u103a\u101c\u102d\u102f\u1037 \u1011\u1004\u103a\u1015\u102b\u1010\u101a\u103a\u104b Regular Expression \u1021\u1000\u103c\u1031\u102c\u1004\u103a\u1038\u1000\u102d\u102f \u1015\u102d\u102f\u1019\u102d\u102f\u101c\u1031\u1037\u101c\u102c\u1001\u103b\u1004\u103a\u1015\u102b\u1000
\nhttps:\/\/developer.mozilla.org\/en-US\/docs\/Web\/JavaScript\/Reference\/Global_Objects\/RegExp<\/a>
\nhttps:\/\/regexr.com<\/a>
\nhttps:\/\/www.rexegg.com<\/a>
\n\u1021\u1011\u1000\u103a\u1015\u102b\u101c\u1004\u103a\u1037\u1001\u103a\u1019\u103b\u102c\u1038\u1019\u103e\u1010\u1005\u103a\u1006\u1004\u103a\u1037 \u101c\u1031\u1037\u101c\u102c\u1014\u102d\u102f\u1004\u103a\u1015\u102b\u1010\u101a\u103a\u104b \u1021\u1006\u102f\u1036\u1038\u1011\u102d\u1016\u1010\u103a\u101b\u103e\u102f\u1015\u1031\u1038\u1010\u1032\u1037\u1021\u1010\u103d\u1000\u103a \u1000\u103b\u1031\u1038\u1007\u1030\u1038\u1010\u1004\u103a\u1015\u102b\u1010\u101a\u103a \u1001\u1004\u103a\u1017\u103b\u104b<\/p>\n","protected":false},"excerpt":{"rendered":"

\u1019\u1004\u103a\u1039\u1002\u101c\u102c\u1015\u102b\u104b \u1000\u103b\u103d\u1014\u103a\u1010\u1031\u102c\u103a\u1000\u1010\u1031\u102c\u1037 Spiceworks Myanmar \u1019\u103e\u102c Backend Developer \u1021\u1014\u1031\u1014\u1032\u1037 \u1010\u102c\u101d\u1014\u103a\u101a\u1030\u101c\u102f\u1015\u103a\u1000\u102d\u102f\u1004\u103a\u1014\u1031\u1010\u1032\u1037 \u101e\u102f\u1010\u101a\u102c\u1019\u102d\u102f\u1038 \u1016\u103c\u1005\u103a\u1015\u102b\u1010\u101a\u103a\u104b \u1012\u102e\u1010\u1005\u103a\u1001\u1031\u102b\u1000\u103a\u1019\u103e\u102c\u1010\u1031\u102c\u1037 regular expression \u1021\u1000\u103c\u1031\u102c\u1004\u103a\u1038\u1000\u102d\u102f \u101d\u1031\u1019\u103b\u103e\u1015\u1031\u1038\u1001\u103b\u1004\u103a\u1015\u102b\u1010\u101a\u103a\u104b Regular Expression \u1006\u102d\u102f\u1010\u102c\u1000\u1010\u1031\u102c\u1037 strings<\/p>\n","protected":false},"author":51,"featured_media":9591,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-9534","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-system"],"yoast_head":"\nRegular Expression - Web Development & Tech Blog | Spiceworks Myanmar<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.spiceworksmyanmar.com\/blog\/regular-expression\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Regular Expression - Web Development & Tech Blog | Spiceworks Myanmar\" \/>\n<meta property=\"og:description\" content=\"\u1019\u1004\u103a\u1039\u1002\u101c\u102c\u1015\u102b\u104b \u1000\u103b\u103d\u1014\u103a\u1010\u1031\u102c\u103a\u1000\u1010\u1031\u102c\u1037 Spiceworks Myanmar \u1019\u103e\u102c Backend Developer \u1021\u1014\u1031\u1014\u1032\u1037 \u1010\u102c\u101d\u1014\u103a\u101a\u1030\u101c\u102f\u1015\u103a\u1000\u102d\u102f\u1004\u103a\u1014\u1031\u1010\u1032\u1037 \u101e\u102f\u1010\u101a\u102c\u1019\u102d\u102f\u1038 \u1016\u103c\u1005\u103a\u1015\u102b\u1010\u101a\u103a\u104b \u1012\u102e\u1010\u1005\u103a\u1001\u1031\u102b\u1000\u103a\u1019\u103e\u102c\u1010\u1031\u102c\u1037 regular expression \u1021\u1000\u103c\u1031\u102c\u1004\u103a\u1038\u1000\u102d\u102f \u101d\u1031\u1019\u103b\u103e\u1015\u1031\u1038\u1001\u103b\u1004\u103a\u1015\u102b\u1010\u101a\u103a\u104b Regular Expression \u1006\u102d\u102f\u1010\u102c\u1000\u1010\u1031\u102c\u1037 strings\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.spiceworksmyanmar.com\/blog\/regular-expression\/\" \/>\n<meta property=\"og:site_name\" content=\"Web Development & Tech Blog | Spiceworks Myanmar\" \/>\n<meta property=\"article:published_time\" content=\"2023-05-05T08:38:51+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2023-05-05T10:00:42+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.spiceworksmyanmar.com\/blog\/wp-content\/uploads\/2023\/05\/cover_regular_expression.png\" \/>\n\t<meta property=\"og:image:width\" content=\"700\" \/>\n\t<meta property=\"og:image:height\" content=\"366\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"author\" content=\"Thuta Yar Moe\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Thuta Yar Moe\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"5 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/www.spiceworksmyanmar.com\\\/blog\\\/regular-expression\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.spiceworksmyanmar.com\\\/blog\\\/regular-expression\\\/\"},\"author\":{\"name\":\"Thuta Yar Moe\",\"@id\":\"https:\\\/\\\/www.spiceworksmyanmar.com\\\/blog\\\/#\\\/schema\\\/person\\\/5883aee80b174692301288a1d3a56405\"},\"headline\":\"Regular Expression\",\"datePublished\":\"2023-05-05T08:38:51+00:00\",\"dateModified\":\"2023-05-05T10:00:42+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/www.spiceworksmyanmar.com\\\/blog\\\/regular-expression\\\/\"},\"wordCount\":959,\"image\":{\"@id\":\"https:\\\/\\\/www.spiceworksmyanmar.com\\\/blog\\\/regular-expression\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/www.spiceworksmyanmar.com\\\/blog\\\/wp-content\\\/uploads\\\/2023\\\/05\\\/cover_regular_expression.png\",\"articleSection\":[\"System\"],\"inLanguage\":\"en-US\"},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.spiceworksmyanmar.com\\\/blog\\\/regular-expression\\\/\",\"url\":\"https:\\\/\\\/www.spiceworksmyanmar.com\\\/blog\\\/regular-expression\\\/\",\"name\":\"Regular Expression - 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