ruby - matching single letters in a sentence with a regular expression -


i want match single letters in sentence. in ...

i want have turkey. may i. 20,000-t bar-b-q

i'd match

*i* want have turkey. may *i*. *i* 20,000-t bar-b-q

right i'm using 

/\b\w\b/

as regular expression, matching 

*i* want have turkey. may *i*. *i* 20,000-*t* bar-*b*-*q*

any suggestions on how past last mile?

use negative lookbehind , negative lookahead fail if previous character word or hyphen, or if next character word or hyphen:

/(?<![\w\-])\w(?![\w\-])/

example: http://www.rubular.com/r/9upmgfg9u4

note mentioned rtcherry, match single numbers. prevent may want change \w outside of character classes [a-za-z].


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