The R Project SVN – R – Diff – /trunk/src/library/base/man/regex.Rd



  match the \code{\dots} forward from the current position would succeed
  (or not), but use up no characters in the string being processed.
  Patterns \samp{(?<=...)} and \samp{(?<!...)} are the lookbehind
  equivalents: they do not allow repetition quantifiers nor \samp{\\C}
  in \code{\dots}.
 
  As from \R 2.14.0 \code{regexpr} and \code{gregexpr} support
  \sQuote{named capture}.  If groups are named, e.g.,
  \code{"(?<first>[A-Z][a-z]+)"} then the positions of the matches are
  also returned by name.  (Named backreferences are not supported by
  \code{sub}.)

Rev 59736	Rev 61433
Line 307...	Line 307...
307	`match the \code{\dots} forward from the current position would succeed`	307	`match the \code{\dots} forward from the current position would succeed`
308	`(or not), but use up no characters in the string being processed.`	308	`(or not), but use up no characters in the string being processed.`
309	`Patterns \samp{(?<=...)} and \samp{(?<!...)} are the lookbehind`	309	`Patterns \samp{(?<=...)} and \samp{(?<!...)} are the lookbehind`
310	`equivalents: they do not allow repetition quantifiers nor \samp{\\C}`	310	`equivalents: they do not allow repetition quantifiers nor \samp{\\C}`
311	`in \code{\dots}.`	311	`in \code{\dots}.`
312		312
313	`As from \R 2.14.0 \code{regexpr} and \code{gregexpr} support`	313	`As from \R 2.14.0 \code{regexpr} and \code{gregexpr} support`
314	`\sQuote{named capture}. If groups are named, e.g.,`	314	`\sQuote{named capture}. If groups are named, e.g.,`
315	`\code{"(?<first>[A-Z][a-z]+)"} then the positions of the matches are`	315	`\code{"(?<first>[A-Z][a-z]+)"} then the positions of the matches are`
316	`also returned by name. (Named backreferences are not supported by`	316	`also returned by name. (Named backreferences are not supported by`
317	`\code{sub}.)`	317	`\code{sub}.)`

The R Project SVN R

(root)/trunk/src/library/base/man/regex.Rd – Rev 59736 → 61433