qdapRegex

qdapRegex is a collection of regex tools associated with the qdap package that may be useful outside of the context of discourse analysis. Tools include removal/extraction/replacement of emails addresses, person tags, hash tags, dollar amounts, percentages, times, zip codes, and phone numbers.

Download the development version of qdapRegex here

Help topics

Removing/Extracting/Replacing

Function for removing/extracting/replacing text using regular expressions.

• rm_default
  Remove/Replace/Extract Template
• rm_
  Remove/Replace/Extract Function Generator
• rm_abbreviation
  Remove/Replace/Extract Abbreviations
• rm_between
  Remove/Replace/Extract Strings Between 2 Markers
• rm_between_multiple
  Remove/Replace/Extract Strings Between 2 Markers
• rm_bracket
  Remove/Replace/Extract Brackets
• rm_angle
  Remove/Replace/Extract Brackets
• rm_bracket_multiple
  Remove/Replace/Extract Brackets
• rm_curly
  Remove/Replace/Extract Brackets
• rm_round
  Remove/Replace/Extract Brackets
• rm_square
  Remove/Replace/Extract Brackets
• rm_caps
  Remove/Replace/Extract All Caps
• rm_caps_phrase
  Remove/Replace/Extract All Caps Phrases
• rm_citation
  Remove/Replace/Extract Citations
• rm_citation_tex
  Remove/Replace/Extract LaTeX Citations
• rm_city_state
  Remove/Replace/Extract City & State
• rm_city_state_zip
  Remove/Replace/Extract City, State, & Zip
• rm_date
  Remove/Replace/Extract Dates
• rm_dollar
  Remove/Replace/Extract Dollars
• rm_email
  Remove/Replace/Extract Email Addresses
• rm_emoticon
  Remove/Replace/Extract Emoticons
• rm_endmark
  Remove/Replace/Extract Endmarks
• rm_hash
  Remove/Replace/Extract Hash Tags
• rm_nchar_words
  Remove/Replace/Extract N Letter Words
• rm_non_ascii
  Remove/Replace/Extract Non-ASCII
• rm_non_words
  Remove/Replace/Extract Non-Words
• rm_number as_numeric as_numeric2
  Remove/Replace/Extract Numbers
• rm_percent
  Remove/Replace/Extract Percentages
• rm_phone
  Remove/Replace/Extract Phone Numbers
• rm_postal_code
  Remove/Replace/Extract Postal Codes
• rm_repeated_characters
  Remove/Replace/Extract Words With Repeating Characters
• rm_repeated_phrases
  Remove/Replace/Extract Repeating Phrases
• rm_repeated_words
  Remove/Replace/Extract Repeating Words
• rm_tag
  Remove/Replace/Extract Person Tags
• rm_time rm_transcript_time as_time as_time2
  Remove/Replace/Extract Time
• rm_title_name
  Remove/Replace/Extract Title + Person Name
• rm_url rm_twitter_url
  Remove/Replace/Extract URLs
• rm_white rm_white_bracket rm_white_colon rm_white_comma rm_white_endmark rm_white_lead rm_white_trail rm_white_lead_trail rm_white_multiple rm_white_punctuation
  Remove/Replace/Extract White Space
• rm_zip
  Remove/Replace/Extract Zip Codes

Testing

Functions for testing regular expressions.

• is.regex
  Test Regular Expression Validity
• validate
  Regex Validation Function Generator

Educational

Functions used within qdapRegex that are intended for education around regular expressions.

• cheat
  A Cheat Sheet of Common Regex Task Chunks
• grab
  Grab Regular Expressions from Dictionaries
• explain
  Visualize Regular Expressions

qdapRegex Tools

Other functions used within qdapRegex that are not specific to removing/extracting/replacing text with regular expressions.

• bind
  Add Left/Right Character(s) Boundaries
• bind_or
  Boundary Wrap (Bind) and `or` Concatenate Elements
• grab
  Grab Regular Expressions from Dictionaries
• group
  Group Regular Expressions
• group_or
  Group Wrap and `or` Concatenate Elements
• escape
  Escape Strings From Parsing
• pastex %|%
  Paste Regular Expressions
• %+%
  Paste Regular Expressions
• S
  Use C-style String Formatting Commands
• TC L U
  Upper/Lower/Title Case

Regular Expression Dictionaries

Data sets with canned regular expressions.

• regex_cheat
  A dataset containing the regex chunk name, the regex string, and a
• regex_usa
  Canned Regular Expressions (United States of America)
• regex_supplement
  Supplemental Canned Regular Expressions