# glue 1.2.0.9000 Unreleased

## Breaking changes

• The evaluate() function has been removed. Changes elsewhere in glue made the implementation trivial so it was removed for clarities sake. Previous uses can be replaced by eval(parse(text = text), envir).

• collapse() has been renamed to glue_collapse() to avoid namespace collisions with dplyr::collapse().

## Features

• compare.glue() was added, to make it easier to use glue objects in testthat::expect_equal() statements.

## Bugfixes and minor changes

• Glue now evaluates unnamed arguments lazily with delayedAssign(), so there is no performance cost if an argument is not used. (#83, @egnha).

• Fixed a bug where names in the assigned expression of an interpolation variable would conflict with the name of the variable itself (#89, @egnha).

• glue_col() and glue_data_col() functions to display strings with color.

• Do not drop the glue class when subsetting (#66).

• Fix glue() and collapse() always return UTF-8 encoded strings (#81, @dpprdan)

# glue 1.2.0 2017-10-29

• The implementation has been tweaked to be slightly faster in most cases.

• glue() now has a .transformer argument, which allows you to use custom logic on how to evaluate the code within glue blocks. See vignette("transformers") for more details and example transformer functions.

• glue() now returns NA if any of the results are NA and .na is NULL. Otherwise NA values are replaced by the value of .na.

• trim() to use the trimming logic from glue is now exported.

• glue_sql() and glue_data_sql() functions added to make constructing SQL statements with glue safer and easier.

• glue() is now easier to use when used within helper functions such as lapply.

• Fix when last expression in glue() is NULL.

# glue 1.1.1 2017-06-21

• Another fix for PROTECT / REPROTECT found by the rchk static analyzer.

# glue 1.1.0 2017-06-13

• Fix for PROTECT errors when resizing output strings.

• glue() always returns ‘UTF-8’ strings, converting inputs if in other encodings if needed.

• to() and to_data() have been removed.

• glue() and glue_data() can now take alternative delimiters to { and }. This is useful if you are writing to a format that uses a lot of braces, such as LaTeX. (#23)

• collapse() now returns 0 length output if given 0 length input (#28).

# glue 0.0.0.9000 Unreleased

• Fix glue() to admit . as an embedded expression in a string (#15, @egnha).

• Added a NEWS.md file to track changes to the package.