Regular Expressions 101

Group 1(\d{4})

\d{4}a Unicode decimal digit, repeated exactly 4 times

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

Group 2(\d{1})

\d{1}a Unicode decimal digit, repeated exactly 1 time

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

Group 3(\d{1} $[月|火|水|木|金]$)

\d{1}a Unicode decimal digit, repeated exactly 1 time

the literal (32₁₀ / 40₈ / 20₁₆)

\(the literal ( (40₁₀ / 50₈ / 28₁₆)

Character Class[月|火|水|木|金]

月the literal 月 (26376₁₀ / 63410₈ / 6708₁₆)

|the literal | (124₁₀ / 174₈ / 7C₁₆)

火the literal 火 (28779₁₀ / 70153₈ / 706B₁₆)

水the literal 水 (27700₁₀ / 66064₈ / 6C34₁₆)

木the literal 木 (26408₁₀ / 63450₈ / 6728₁₆)

金the literal 金 (37329₁₀ / 110721₈ / 91D1₁₆)

\)the literal ) (41₁₀ / 51₈ / 29₁₆)

Global pattern flags

g modifier: global. Finds all matches instead of stopping after the first

m modifier: multiline. Causes ^ and $ to match the start and end of each line, not only the start and end of the string

Detailed match information will be displayed here automatically.

Search reference

Regular Expression

(\d{4})\/(\d{1})\/(\d{1} \([月|火|水|木|金]\))

New

2019/9/3 (火)