; * src/composite.h (LGSTRING_FONT): Add comment about its role.

This commit is contained in:
Eli Zaretskii 2021-10-07 19:27:49 +03:00
parent 1af00e67d6
commit 7ae70054aa

View file

@ -254,6 +254,10 @@ composition_valid_p (ptrdiff_t start, ptrdiff_t end, Lisp_Object prop)
#define LGSTRING_HEADER(lgs) AREF (lgs, 0)
#define LGSTRING_SET_HEADER(lgs, header) ASET (lgs, 0, header)
/* LGSTRING_FONT retrieves the font used for LGSTRING, if we are going
to display it on a GUI frame. On text-mode frames, that slot
stores the coding-system that should be used to write output to the
frame's terminal. */
#define LGSTRING_FONT(lgs) AREF (LGSTRING_HEADER (lgs), 0)
#define LGSTRING_CHAR(lgs, i) AREF (LGSTRING_HEADER (lgs), (i) + 1)
#define LGSTRING_CHAR_LEN(lgs) (ASIZE (LGSTRING_HEADER (lgs)) - 1)