NEWS

equatags 0.4.0.001

In Word and PowerPoint (transform_mathjax(to = "mml")), equations are now displayed inline by default, as documented: the argument display was ignored and every equation was displayed as a block (limits of sums above and below, larger fractions). Use display = TRUE to keep the previous result.

equation_size() gives the width, height and depth of equations written in LaTeX, without drawing them and without a graphic device. Use it to size a cell, a column or an image before the document is opened. The result is the same on every machine, and close to what Word displays with the same font (see "Differences with Word and browsers" in ?equation_size).
equation_grob() draws an equation in a 'grid' graphic, for example in a 'ggplot2' plot (R >= 4.3).
Both functions use the font "STIX Two Math" by default, shipped with 'gdtools'; another math font can be given by its name or its file.
Fractions, scripts, sums and integrals with their limits, roots, matrices and arrays, delimiters such as \left( \right), accents, braces, arrows, frames, colours and most other constructs of 'KaTeX' are supported (see ?equation_size). An equation that can not be measured gives NA with a warning.

In Word, vertical bars around an expression (|x|, \lvert x \rvert, \left| x \right|, \|x\|) were spaced as the relation "divides": they are now displayed as delimiters.
transform_mathjax(to = "mml") failed on texts made of ASCII characters only, such as \text{ab}.

Documents with many equations are created faster and use much less memory (about 1.7 MB per equation before, for the whole R session).

transform_mathjax() has a new argument rpr to set the run properties of 'Office Open XML Math' equations, such as their size or color: a <w:rPr> element for 'Microsoft Word' or an <a:rPr> element for 'Microsoft PowerPoint'. Without it, equations get the default size of the document.

These fixes concern the 'Office Open XML Math' output (to = "mml") used in 'Microsoft Word' and 'Microsoft PowerPoint':

The argument of sums, products and integrals is now written inside the operator. It was written after it, and Word showed an empty placeholder in the operator.
Delimiters, such as the parentheses of a matrix or \left( \right), now stretch to the height of their content. They kept the height of a single line.
\quad and \qquad are now written as spaces. They were dropped.
Spaces such as \, or \; are no longer written as normal text.

transform_mathjax() has a new argument strict ("ignore" by default) to turn off the warnings issued when equations contain accented characters.

transform_mathjax() has a new argument display to generate display or inline equations.

Equations are now generated inline by default (display = FALSE). They used to be generated in display mode only.
Unused tools related to 'mathjax-npm' are removed.

tools::R_user_dir() is now used instead of rappdirs::user_data_dir(), as required by the CRAN policy.