This module deals with creating delimiters of various sizes. The TeXbook discusses these routines on page 441-442, in the "Another subroutine sets box x to a specified variable delimiter" paragraph.
There are three main routines here.
makeSmallDelim makes a delimiter in the
normal font, but in either text, script, or scriptscript style.
makeLargeDelim makes a delimiter in textstyle, but in one of the Size1,
Size2, Size3, or Size4 fonts.
makeStackedDelim makes a delimiter out of
smaller pieces that are stacked on top of one another.
The functions take a parameter
center, which determines if the delimiter
should be centered around the axis.
Then, there are three exposed functions.
sizedDelim makes a delimiter in
one of the given sizes. This is used for things like
customSizedDelim makes a delimiter with a given total height+depth. It is
called in places like
leftRightDelim makes an appropriate
delimiter which surrounds an expression of a given height an depth. It is
makeCustomSizedDelim(type: string, delim: string, height: number, center: boolean, context: Context.Context, classes: Array.<string>)privatestatic
Make a delimiter of a given height+depth, with optional centering. Here, we traverse the sequences, and create a delimiter that the sequence tells us to.
'mopen' or 'mclose'
Make an inner span with the given offset and in the given font. This is used
makeStackedDelim to make the stacking pieces for the delimiter.
Makes a large delimiter. This is a delimiter that comes in the Size1, Size2, Size3, or Size4 fonts. It is always rendered in textstyle.
Make a delimiter for use with
\right, given a height and depth
of an expression that the delimiters surround.
makeNullFence(context: *, typeopt: string)privatestatic
either 'mopen', 'mclose' or null
Used to create a delimiter of a specific size, where
size is 1, 2, 3, or 4.
Makes a small delimiter. This is a delimiter that comes in the Main-Regular font, but is restyled to either be in textstyle, scriptstyle, or scriptscriptstyle.
Make a stacked delimiter out of a given delimiter, with the total height at
heightTotal. This routine is mentioned on page 442 of the TeXbook.
Traverse a sequence of types of delimiters to decide what kind of delimiter should be used to create a delimiter of the given height+depth.
a character value (not a command)