query: Why a caret (^) and dollar sign ($) were chosen for beginning/end of line in regex?
positive_passages.docid: 153593
positive_passages.text: When and why did ^ and $ take on their meanings of "beginning of line" and "end of line?"
negative_passages.docid: 6276
negative_passages.text: Difference between \xx{} and \mathxx{}?
negative_passages.docid: 52449
negative_passages.text: Java RegEx meta character (.) and ordinary dot?
negative_passages.docid: 100230
negative_passages.text: Reading a javascript script, why so many $ (dollar signs)?
negative_passages.docid: 6448
negative_passages.text: Reference - What does this regex mean?
negative_passages.docid: 34481
negative_passages.text: Emacs - regular expressions in Lisp need to be double-escaped - why?
negative_passages.docid: 21506
negative_passages.text: Why would a JavaScript variable start with a dollar sign?
negative_passages.docid: 131930
negative_passages.text: How does storing the regular expression in a shell variable avoid problems with quoting characters that are special to the shell?
negative_passages.docid: 75217
negative_passages.text: Replace (parsing "\" illegal at end of pattern)
negative_passages.docid: 3965
negative_passages.text: What special characters must be escaped in regular expressions?
negative_passages.docid: 93884
negative_passages.text: What does the ^ (caret) symbol do in JavaScript?
negative_passages.docid: 12192
negative_passages.text: Why the end-of-line % in macro definitions?
negative_passages.docid: 148063
negative_passages.text: Python regex - why does end of string ($ and \Z) not work with group expressions?
negative_passages.docid: 125038
negative_passages.text: What is a "Nested Quantifier" and why is it causing my regex to fail?
negative_passages.docid: 15512
negative_passages.text: How to typeset the symbol “^” (caret/circumflex/hat)
negative_passages.docid: 73024
negative_passages.text: PHP regex delimiters, / vs. | vs. {} , what are the differences?
negative_passages.docid: 71795
negative_passages.text: What does the Bash operator <<< (i.e. triple less than sign) mean?