diff options
Diffstat (limited to 'src/nvim/buffer.c')
| -rw-r--r-- | src/nvim/buffer.c | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/src/nvim/buffer.c b/src/nvim/buffer.c index 9d42fbc1b3..3080d4960d 100644 --- a/src/nvim/buffer.c +++ b/src/nvim/buffer.c @@ -5278,6 +5278,43 @@ int bufhl_add_hl(buf_T *buf, return src_id; } +/// Add highlighting to a buffer, bounded by two cursor positions, +/// with an offset +/// @param buf The buffer to add highlights to +/// @param src_id src_id to use or 0 to use a new src_id group, +/// or -1 for ungrouped highlight. +/// @param hl_id Id of the highlight group to use +/// @param lpos_start Cursor position to start the hightlighting at +/// @param lpos_end Cursor position to end the highlighting at +/// @param offset Move the whole highlighting this many columns to the right +void bufhl_add_hl_pos_offset(buf_T *buf, + int src_id, + int hl_id, + lpos_T pos_start, + lpos_T pos_end, + colnr_T offset) +{ + colnr_T hl_start = 0; + colnr_T hl_end = 0; + + for (linenr_T lnum = pos_start.lnum; lnum <= pos_end.lnum; lnum ++) { + if (pos_start.lnum < lnum && lnum < pos_end.lnum) { + hl_start = offset; + hl_end = MAXCOL; + } else if (lnum == pos_start.lnum && lnum < pos_end.lnum) { + hl_start = pos_start.col + offset + 1; + hl_end = MAXCOL; + } else if (pos_start.lnum < lnum && lnum == pos_end.lnum) { + hl_start = offset; + hl_end = pos_end.col + offset; + } else if (pos_start.lnum == lnum && pos_end.lnum == lnum) { + hl_start = pos_start.col + offset + 1; + hl_end = pos_end.col + offset; + } + (void)bufhl_add_hl(buf, src_id, hl_id, lnum, hl_start, hl_end); + } +} + /// Clear bufhl highlights from a given source group and range of lines. /// /// @param buf The buffer to remove highlights from |