| | Regular expressions 3. Anchors | 
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Anchors let you specify a very specific position within the search text.
- ^   Try to match the (following) regex at the beginning of the string.
-    Example: "^ab" matches "ab" only at the beginning of a line and not, for example, in the line "cab".
- $   Try to match the (following) regex at the end of the string.
- <    Try to match the regex at the start of a word.
- The character class that defines a word can be found at the convenience escape sequences page.
- >    Try to match the regex at the end of a word.
- \B   Not a word boundary
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