- Wikipedia
- Beginner's Guide - Blog Post This is the best post to learn regular expressions fast with all the basics.
- Regular Expression info Advanced in-depth tutorial about all regular expression topics
- Regex101 (I personally prefer this, as this also explains and has all different regex engines.)
- Regexr
- C#
- Ruby
- PHP
- Perl (PCRE - Perl Compatible Regular Expressions)
- Java
- JavaScript
- Python
- Conditionals
- Atomic Groups
- Look Arounds [IMP]
- Named Capture
- Inline modifiers
- Subroutines
- Recursive expressions
- Predefined subroutines
- Branch reset
- Inline comments
| Link | Complexity |
|---|---|
| https://www.hackerrank.com/domains/regex/re-introduction | Beginner - Intermediate |
| https://regex.sketchengine.co.uk/ | Beginner - Advanced |
| https://regexcrossword.com/ | Beginner - Advanced |
| https://regexone.com/ | Beginner |
| http://play.inginf.units.it/#/ | Advanced |
Solution to RegexCrossword
My Profile - Regex Crossword Profile
Rank - 45 Out Of 47450
Number of Puzzles Solved - 392
Underscore '_' represents SPACE
| Level | Name | Solution |
|---|---|---|
| 1 | The OR symbol | A |
| 2 | A Range of characters | B |
| 3 | Characters NOT to include | C |
| 4 | Zero or more | A A |
| 5 | Zero or one | A B |
| 6 | One or more | A A |
| 7 | Backreference | A A |
| 8 | Specific amount | A A |
| 9 | Space | ' ' |
| Level | Name | Solution |
|---|---|---|
| 1 | Beatles | HELP |
| 2 | Naughty | BOBE |
| 3 | Ghost | OOOO |
| 4 | Symbolism | **// |
| 5 | Airstrip One | 1984 |
| Level | Name | Solution |
|---|---|---|
| 1 | Always remember | ATO WEL |
| 2 | Johnny | WA LK ER |
| 3 | Earth | FOR TY- TWO |
| 4 | Encyclopedia | DON TPA NIC |
| 5 | Technology | TURN OFFA NDON |
| Level | Name | Solution |
|---|---|---|
| 1 | Royal Dinner | FOODF ITFOR AKING |
| 2 | Regular Workout | REGUL AREXP RESSI ONOFT HEDAY |
| 3 | We apologise for the inconvenience | ANSWE RTHEG REATQ UESTI ONNOW |
| 4 | Questionable | ?!!!? !?!?! !!?!! !?!?! ?!!!? |
| 5 | Hamlet | TOBEO RNOTT OBEAR EGULA RREGX |
| Level | Name | Solution |
|---|---|---|
| 1 | Ten o'clock | NET EWE TEN |
| 2 | Third | GEL EYE LEG |
| 3 | Horn | RATS ABUT TUBA STAR |
| 4 | Open the lid | TRAP RAJA AJAR PART |
| 5 | Time Walker | STEP TIME EMIT PETS |
| Level | Name | Solution |
|---|---|---|
| 1 | Telekinesis | ET |
| 2 | GMC Vandura | A-T EAM |
| 3 | Bat Man | NOS FER ATU |
| 4 | Big Mac | PUL P_F ICT ION |
| 5 | The Lektor Device | FRO M_R USS IA_ WIT H_L OVE |
| Level | Name | Solution |
|---|---|---|
| 1 | Pisco Sour | LI MA |
| 2 | Roman Latin | LON DIN IUM |
| 3 | Big and hot | NEW_ YORK |
| 4 | Alpha World City | KUAL A_LUM PUR |
| 5 | Home | _CO PEN HAG EN_ |
| Level | Name | Solution |
|---|---|---|
| 1 | Bal | GPO ZKS |
| 2 | Tel | M0Y P.H P\2 |
| 3 | Kil | M?BO SNUO ?PYO |
| 4 | Fol | 70MW /DBE 1_SP :XNA |
| 5 | Lul | TRAN7 24L?_ AM5$L -WE3O DEFF? |
| Level | Name | Solution |
|---|---|---|
| 1 | The Ghost | REVENGE _HIS_FO UL_AND_ MOST_UN NATURAL _MURDER |
| 2 | Hamlet and Ophelia | TO_BE,_ OR_NOT_ TO_BE,_ THAT_IS _THE_QU ESTION_ |
| 3 | The Play | HE_POIS ONS_HIM _I'_THE _GARDEN |
| 4 | Laertes | TOO_MUC H_OF_WA TER_HAS T_THOU, _POOR_O PHELIA! |
| 5 | Memento | ALAS,_ POOR_Y ORICK! _..._A _FELLO W_OF_I NFINIT E_JEST |
| 6 | The End | NOW_C RACKS _A_NO BLE_H EART. _GOOD _NIGH T,_SW EET_P RINCE |
| Level | Name | Solution |
|---|---|---|
| 1 | Buzz buzz | H IV E |
| 2 | Garden | FL RO! WE |
| 3 | Pollen | SES A"ED .B.B_ I_D" R.N |
| 4 | Stationary | S_E_ ASVTL "OET"L B_S=___ YSOEIY VTTEM FR_A |
| 5 | Winnie | 'NIB THOSE TFA__W TH_ISNG BEEEEEEE O_RR_HO _STE__ KING_ VNR. |
| Sr.No. | Name | Created By | Solution |
|---|---|---|---|
| 1 | Binary | #6450 | 11001 11100 01010 01111 00001 |
| 2 | Letter | #2009 | TH_IS I_S_L _ETT_ _____ _ERA_ |
| 3 | Morse | #2009 | .-. . --. . -..- -.-. .-. -.-. .-. --- ... ... .-- --- .-. -.. .. ... -.-. --- --- .-.. (REGEXCRCROSSWORDISCOOL) |
| 4 | Regex Picross | #3162 |  |
| 5 | Unique Puzzle | #21964 | 8259173064! |
| 6 | Checkmate, Atheists | #14171 |  |
