Download - The Bastards Book of Regular Expressions

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CONTENTSData Cleaning with the Stars 129Normalized alphabetical titles . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 129Make your own delimiters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 130Finding needles in haystacks (TODO) 133Shakespeare’s longest word . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 133Changing phone format (TODO) 136Telephone game . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 136Ordering names and dates (TODO) 145Year, months, days . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 145Names . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 145Preparing for a spreadsheet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 145Dating, Associated Press Style (TODO) 146Scenario . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 146The AP Date format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 146Real-world considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150The limits of regex . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 151Sorting a police blotter 153Sloppy copy-and-paste . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 154Start loose and simple . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 155Conclusion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 157Converting XML to tab-delimited data 158The payments XML . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 158The pattern . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 160Add more delimitation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 161Cleaning up Microsoft Word HTML (TODO) 162
CONTENTSSwitching visualizations (TODO) 163A visualization in Excel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 163From Excel to Google Static Chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 163From Google Static Charts to Google Interactive Charts . . . . . . . . . . . . . . . . . . . 163Cleaning up OCR Text (TODO) 164Scenario . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 164Cheat Sheet 165Moving forward 166Additional references and resources . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 166
Page 1: The Bastards Book ofRegular Express
Page 5: CONTENTSOptionality and alternation
Page 9 and 10: Regular Expressions are for Everyon
Page 11 and 12: Regular Expressions are for Everyon
Page 13 and 14: Getting Started6
Page 15 and 16: Finding a proper text editor 8Notep
Page 17 and 18: Finding a proper text editor 10Edit
Page 19 and 20: Finding a proper text editor 12Text
Page 21 and 22: Finding a proper text editor 14does
Page 23 and 24: Finding a proper text editor 16Yest
Page 25 and 26: Finding a proper text editor 18A do
Page 27 and 28: A better Find-and-Replace 20The lim
Page 29 and 30: A better Find-and-Replace 22Using R
Page 31 and 32: Your first regex 24helloThe Find-an
Page 33 and 34: Your first regex 26The regex syntax
Page 35 and 36: Your first regex 28Double-bounded
Page 37 and 38: Your first regex 30AnswerFind \bcat
Page 39 and 40: Removing emptinessIt’s funny how
Page 41 and 42: Removing emptiness 34Now let’s do
Page 43 and 44: Removing emptiness 36…as opposed
Page 45 and 46: Removing emptiness 38Replacement in
Page 47 and 48: Match one-or-more with the plus sig
Page 55 and 56: Match zero-or-more with the star si
Page 57 and 58:
Specific and limited repetition 501
Page 59 and 60:
Specific and limited repetition 52E
Page 61 and 62:
Specific and limited repetition 54C
Page 63 and 64:
Anchors: A way to trim emptinessIn
Page 65 and 66:
Anchors: A way to trim emptiness 58
Page 67 and 68:
Page 69 and 70:
Page 71 and 72:
Matching any letter, any number 64A
Page 73 and 74:
Matching any letter, any number 66W
Page 75 and 76:
Matching any letter, any number 68[
Page 77 and 78:
Matching any letter, any number 70R
Page 79 and 80:
Matching any letter, any number 72F
Page 81 and 82:
Matching any letter, any number 74A
Page 83 and 84:
Negative character sets 76$1,200.00
Page 85 and 86:
Negative character sets 78\W+Exerci
Page 87 and 88:
Capture, Reuse 80Find (ba)+Matches
Page 89 and 90:
Capture, Reuse 82.- then the 1st ba
Page 91 and 92:
Capture, Reuse 84In English We are
Page 93 and 94:
Capture, Reuse 86ApplesOraclesOrang
Page 95 and 96:
Capture, Reuse 8805-14-8912-03-9803
Page 97 and 98:
Capture, Reuse 90Mary asked: "What
Page 99 and 100:
Optionality and alternationThe two
Page 101 and 102:
Optionality and alternation 94Answe
Page 103 and 104:
Optionality and alternation 96Studi
Page 105 and 106:
Optionality and alternation 98You m
Page 107 and 108:
Laziness and greediness 100Being to
Page 109 and 110:
Laziness and greediness 102Replace
Page 111 and 112:
Laziness and greediness 104With the
Page 113 and 114:
Lookarounds 106cat(?=s)- will match
Page 115 and 116:
Lookarounds 108`(?
Page 117 and 118:
Lookarounds 110ExerciseGiven the fo
Page 119 and 120:
Lookarounds 112City,CountryAlbuquer
Page 121 and 122:
Lookarounds 114Given this list of c
Page 123 and 124:
Lookarounds 116100,J.D. Salinger Av
Page 125 and 126:
Lookarounds 1186,300|Apples|New Yor
Page 127 and 128:
Lookarounds 120^(\d+) Record ID (\w
Page 129 and 130:
Lookarounds 122d. Remove all asides
Page 131 and 132:
From Data to HTML (TODO)This chapte
Page 133 and 134:
From Data to HTML (TODO) 126Turning
Page 135 and 136:
The ExercisesI’ve never been one
Page 137 and 138:
Data Cleaning with the Stars 130LOR
Page 139 and 140:
Data Cleaning with the Stars 132[GM
Page 141 and 142:
Finding needles in haystacks (TODO)
Page 143 and 144:
Changing phone format (TODO)Todo: T
Page 145 and 146:
Changing phone format (TODO) 138Exe
Page 147 and 148:
Changing phone format (TODO) 140Ans
Page 149 and 150:
Changing phone format (TODO) 142`1-
Page 151 and 152:
Changing phone format (TODO) 144(\d
Page 153 and 154:
Dating, Associated Press Style (TOD
Page 155 and 156:
Page 157 and 158:
Page 159 and 160:
Page 161 and 162:
Sorting a police blotter 154Sloppy
Page 163 and 164:
Sorting a police blotter 156I used
Page 165 and 166:
Converting XML to tab-delimited dat
Page 167 and 168:
Converting XML to tab-delimited dat
Page 169 and 170:
Cleaning up Microsoft Word HTML(TOD
Page 171 and 172:
Cleaning up OCR Text (TODO)Image sc
Page 173 and 174:
Moving forwardThank you for taking
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