2020.4.1

qinwf/re2r URL in DESCRIPTION.

2020.3.30

reformat DESCRIPTION for CRAN (URL for R Journal paper).

2020.3.25

test_engines uses available engines.

bugfix in engine docs: namedCapture.engine is the option name.

2020.3.2

Use stringsAsFactors=TRUE in test-CRAN-df.

2019.8.13 PR#13 R Journal reviews

namedCapture.engine -> engine.

CONTRIBUTING.org

2019.8.9 PR#12

df_match_variable(subject.df, column=list(nomatch.error=TRUE)).

2019.8.8 PR#11

subject.vec is now first arg of str_*_variable; subject is no longer
passed to variable_args_list. Usage is same as before but docs should
be easier to understand.

2019.8.7

str_match_variable(nomatch.error=TRUE) means to stop with an error if
any subjects do not match -- error message shows pattern and subjects
which do not match. This is fully backwards compatible since arguments
with names that contain dots resulted in an error (group names can not
contain dots).

cbind in for loop used in df_match_variable for speed.

tried parallelizing df_match_variable over subject columns using
future, but no significant speedups.

tried re2_match(parallel=TRUE) but no significant speedups.

show generated pattern in stop_for_names.

document/export variable_args_list for viewing generated pattern.

bugfix for df_match_variable with only one group = name.

2019.7.30

namedCapture.engine() only used for getting, not setting, option.

Better examples for *_variable.

New vignette names.

Links in docs.

2019.02.28

new verbose syntax comparison vignette with PCRE_EXTENDED (?x)

df syntax comparison vignette.

2019.02.25

vignette typo fixes.

2019.02.21

Suggest re2r, namedCapture.engine()

2019.01.14

un-named list interpreted as non-capturing group.

vignettes.

2019.01.09

nested capture groups syntax in *_variable using named list.

inst/extdata/trackDb.txt.gz

2018.11.23

remove subject arg from df_match_variable in order to support column
named "subject"

2018.11.21 PR#6

df_match_variable

more informative error messages for str_match*named functions.

Suggest data.table for testing.

2018.11.20 PR#5

*_variable functions accept lists which are parsed recursively.

2018.11.19 PR#4

*_variable functions which use variable number of arguments.

2017.06.01 PR#3

examples.

2017.01.15 PR#2

Informative errors when type.list is unusual.

2015.12.01 PR#1

Coveralls badge, 100% test coverage via jimhester/covr.

2015.10.20

str_match_named was sometimes incorrectly issuing a warning when given
NA subjects, but this is now fixed.

When type.list is supplied, data.frame(stringsAsFactors=FALSE) is now
used to create the data.frame from the character match groups
matrix. This allows simple numerical conversions using functions like
as.numeric and as.integer (before, we got unexpected results since
those functions take the factor ID number).

2015.10.15

Test optional groups, set NA before calling substring to avoid "NAs
introduced by coercion" warning.

2015.10.07

stop with informative errors for pathological subjects and patterns.

2015.10.05

first version forked from str_match*perl in my .Rprofile. There are
several differences: 
- the "name" group is used for rownames, 
- the entire match is not returned (only the groups),
- str_match_named is vectorized (str_match_perl was not),
- names are taken from subject if present.