| is_string | is_string |
| re_class | Construct REGEX class from character vector |
| str_detect_tag | str_detect_tag |
| str_detect_unbalanced | Detect unbalanced (quotes) |
| str_escape | Escape dot(.) in a string |
| str_grep | Return elements matching a pattern |
| str_pad | pad strings on one right or left |
| str_prefix | Add prefix or suffix to a string |
| str_snip | Snip portion from string |
| str_split_ws_quoted | Split string on whitespace leaving quoted regions intact |
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