NEWS

gsubfn 0.7-0

transform2 added

gsubfn 0.6-7

list[...] <- added for enabling multiple return values

gsubfn 0.6-6 (2014-08-27)

bug fix. strapplyc failed with "R" engine.
new read.pattern function
vignettes have been moved to vignette directory to satisfy R 3.1,0

gsubfn 0.6-5 (2012-10-22)

the Vignettes menu has been removed removing any dependence on Zelig.

gsubfn 0.6-4 (2012-08-01)

in interactive Windows sessions under Rgui a Vignettes menu is created (or added to if present) provided the Zelig package is available
a scoping bug in fn$ was fixed
gsubfn was attempting to access the tcltk package even if the gsubfn.engine = "R" option was set. Fixed.
changes to accommodate R-2.16: (i) a non-ascii character in the gsubfn-si demo was removed (ii) rep on a pairlist is no longer supported by R but used by fn$ so a workaround was implemented
modified demos: (i) gsubfn-chron demo simplified based on latest read.zoo, (ii) modified gsubfn-gries to use lipsum.txt (which was added), (iii) mu in gsubfn-si changed to u so its all ASCII.

gsubfn 0.6-3 (2012-04-03)

strapplyc could not find tcltk. Fixed.
paste0 has been implemented in the base of R as of R 2.15.0 so it has been removed from this version of sqldf.

gsubfn 0.6-2 (2012-03-28)

package is now byte compiled hence depends on 2.14.0 or higher
if tcltk can be loaded it is loaded at startup. If not, the gsubfn.engine option is set to "R", a message is given and subsequent calls will use slower R code instead of tcltk. Previously this check was done at run time in the individual functions.
strapplyc now calls strapply if gsubfn.engine = "R"
now uses withVisible instead of internal function eval.with.vis. This internal change was made to satisfy R 2.15.0 and should not affect users.
added more unit tests

gsubfn 0.6

strapplyc added, a fast tcl-only version of strapply specialized to FUN=c.
bug fix. perl was ignored when engine = "tcl".
unit test suite added. demo("gsubfn-unitTests") will run it.
added NAMESPACE

gsubfn 0.5-6

bug fix. backref argument was being interpreted incorrectly in "R" engine.

gsubfn 0.5-5 (2010-11-18)

bug fix - engine option was not being interpreted correctly.

gsubfn 0.5-4

strapply with engine = "tcl" (the default) now runs much faster on long strings

gsubfn 0.5-3 (2010-06-13)

new argument, empty, on strapply
gsubfn now has an engine argument. This was already the case with strapply.
new global option "gsubfn.engine" whose value can be "tcl" or "R". It is used as the default value for the gsubfn and strappy engine argument. If the option is not set then gsubfn and strapply default to the "tcl" regular expression engine if the current R installation has tcltk capability and "R" otherwise.
gsubfn pattern is no longer parenthesized internally if (1) engine = "tcl" or if (2) engine = "R" and backref > 0. See the example of replacing double characters in ?gsubfn .
if the function in gsubfn or strapply has an '&' argument then backref will be taken to be negative and the entire match passed through that arg.
in as.function.formula if any of ..1 through ..9 are found as free variables then ... is used as a trailng argument instead. If '&' is a free variable then it is placed at the beginning of the argument list.

gsubfn 0.5-2 (2010-03-23)

bug fixes

gsubfn 0.5-1 (2010-03-16)

fixes to pass R CMD CHECK
package no longer depends on tcltk but it is still suggested. If R installation does not have tcltk capability then strapply falls back to R engine.

gsubfn 0.5-0 (2009-07-02)

faster strapply based on tcl interface. engine argument can choose between it and older version of strapply.

gsubfn 0.3-9

removed some dead code. Thanks to Wacek Kusnierczyk.

gsubfn 0.3-8 (2008-12-15)

minor improvements in gsubfn-package.Rd
fixed bug in match.funfn
heuristic to detect the number of back references (used when backref is not specified) now uses -k where k is the number of non-escaped left parens (whereas previously it used -k where k was the number of left parens whether escaped or not).

gsubfn 0.3-7 (2008-10-16)

R CMD CHECK fixes
if replacement object is a list and match not found in that list then no replacement is done

gsubfn 0.3-6

bug fixes: fn$force("$x") failed if variable name was x as shown here
bug fixes: f <- function() { aaa <- "X"; fn$cat("abc$aaa def\n") }; f() failed.
internals: eval.with.vis() replaced in $.fn. Now using withVisible(). This change requires R 2.5 or later.
the replacement object in gsubfn can be a list as well
the replacement object in strapply can be a character string or list as well
if backref= is omitted on gsubfn or strapply it passes the backreferences if any (but not the entire match) or if there are no back references it passes the entire match. Thus the default has changed in the case that (1) there are one or more backreferences in the regular expression and (2) backref was not specified. This should eliminate the need to specify backref in most circumstances. Note that if there are no backreferences in your regular expression or if backref= had been specified there is no change thus in most cases there will be no change.

gsubfn 0.3-5

fixed bug in demo index
eliminated dependence on methods package (previously only dependence was use of 'is')

gsubfn 0.3-4

fixed typo

gsubfn 0.3-3 (2006-10-28)

changed quantreg example to reflect change in engel data set

gsubfn 0.3-2

revised gsubfn-packages.Rd
fn$ now performs quasi-perl style interpolation
cati, cati0 removed since fn$cat and fn$cat0 can be used.
rules for which formulas are translated and which character strings are interpolated have been changed and simplified: 1. formulas specified with ~~ (double ~) are translated to functions 2. character strings beginning with \1 are translated to functions 3. if the above rules result in no translation/interpolation then all formulas are translated if there are any formulas or, if not, then all character strings are interpolated In most cases rule #3 is used.
fn$f now returns invisibly if f does (thanks to Duncan Murdoch for eval.with.vis)

gsubfn 0.3-1 (2006-10-23)

fixed initialization bug in strapply
added proto examples to ?gsubfn and ?strapply

gsubfn 0.3-0

gsubfn and strapply now can take proto arguments in addition to character strings, functions and formulas
vignette added
home page abbreviated since most info already in vignette

gsubfn 0.2-3

increased string lengths accepted by gsubfn by eliminating use of the R parse() command. [Thanks to Stefan Th. Gries for reporting problem.]
fixed bug in one of the examples in example(gsubfn)
strapply fixes

gsubfn 0.2-2 (2006-10-14)

added combine= argument to strapply
fixed bug associated with using double quotes in gsub (which also could affect strapply and cati). [Thanks to Stefan Th. Gries for reporting problem.]

gsubfn 0.2-1 (2006-10-10)

added "note difference" example in strapply
letters, LETTERS and pi excluded from args so x ~ sin(x*pi/180) can be shortened to ~ sin(x*pi/180) and x ~ LETTERS[x] can be reduced to ~ LETTERS[x] (previously it would have added pi and LETTERS to arg lists in these two examples)
improved as.function.formula.Rd
fixes to eliminate R CMD CHECK warnings under R 2.5.0
bug fix in $.fn. If args and match.call order was different it could fail previously.
new demos: gsubfn-gries.R, gsubfn-chron.R, gsubfn-si.R
THANKS file

gsubfn 0.2-0 (2006-10-06)

match.funfn
as.function.formula improvements
$.fn
added numerous examples of $.fn to home page

gsubfn 0.1-5 (2006-10-01)

reference to cat0 missing from gsubfn-package.Rd
added digit separation example to strapply.Rd
added config file example to strapply.Rd
in strapply simplify= can be a function
replacement= in gsubfn and strapply can be a formula
new internal function as.function.formula
new home page and svn repository (URL in DESCRIPTION file)

gsubfn 0.1-4 (2006-08-23)

added cati, cati0, cat0 and paste0
added USE.NAMES argument to gsubfn
added gsubfn-cut demo
added repx example to gsubfn.Rd
added SI scale example to gsubfn.Rd
perl=, etc. args were not being passed to gsub
added moving window example to strapply.Rd

gsubfn 0.1-3 (2006-04-23)

enhanced gsubfn backref= argument
fixed bug in strapply

gsubfn 0.1-2 (2006-04-17)

cati added
updated DESCRIPTION and gsubfn-package.Rd

gsubfn 0.1-1 (2006-04-05)

strapply added
gsubfn-package.Rd added

gsubfn 0.1-0 (2006-03-26)

initial release