diff options
Diffstat (limited to 'src/nvim/memline.c')
| -rw-r--r-- | src/nvim/memline.c | 64 |
1 files changed, 43 insertions, 21 deletions
diff --git a/src/nvim/memline.c b/src/nvim/memline.c index d5788d96b3..f9390bcb88 100644 --- a/src/nvim/memline.c +++ b/src/nvim/memline.c @@ -257,11 +257,12 @@ int ml_open(buf_T *buf) /* * init fields in memline struct */ - buf->b_ml.ml_stack_size = 0; /* no stack yet */ - buf->b_ml.ml_stack = NULL; /* no stack yet */ - buf->b_ml.ml_stack_top = 0; /* nothing in the stack */ - buf->b_ml.ml_locked = NULL; /* no cached block */ - buf->b_ml.ml_line_lnum = 0; /* no cached line */ + buf->b_ml.ml_stack_size = 0; // no stack yet + buf->b_ml.ml_stack = NULL; // no stack yet + buf->b_ml.ml_stack_top = 0; // nothing in the stack + buf->b_ml.ml_locked = NULL; // no cached block + buf->b_ml.ml_line_lnum = 0; // no cached line + buf->b_ml.ml_line_offset = 0; buf->b_ml.ml_chunksize = NULL; if (cmdmod.noswapfile) { @@ -831,11 +832,12 @@ void ml_recover(bool checkext) /* * init fields in memline struct */ - buf->b_ml.ml_stack_size = 0; /* no stack yet */ - buf->b_ml.ml_stack = NULL; /* no stack yet */ - buf->b_ml.ml_stack_top = 0; /* nothing in the stack */ - buf->b_ml.ml_line_lnum = 0; /* no cached line */ - buf->b_ml.ml_locked = NULL; /* no locked block */ + buf->b_ml.ml_stack_size = 0; // no stack yet + buf->b_ml.ml_stack = NULL; // no stack yet + buf->b_ml.ml_stack_top = 0; // nothing in the stack + buf->b_ml.ml_line_lnum = 0; // no cached line + buf->b_ml.ml_line_offset = 0; + buf->b_ml.ml_locked = NULL; // no locked block buf->b_ml.ml_flags = 0; /* @@ -2403,12 +2405,13 @@ void ml_add_deleted_len_buf(buf_T *buf, char_u *ptr, ssize_t len) if (len == -1) { len = STRLEN(ptr); } - buf->deleted_bytes += len+1; - if (buf->update_need_codepoints) { - mb_utflen(ptr, len, &buf->deleted_codepoints, - &buf->deleted_codeunits); - buf->deleted_codepoints++; // NL char - buf->deleted_codeunits++; + curbuf->deleted_bytes += len+1; + curbuf->deleted_bytes2 += len+1; + if (curbuf->update_need_codepoints) { + mb_utflen(ptr, len, &curbuf->deleted_codepoints, + &curbuf->deleted_codeunits); + curbuf->deleted_codepoints++; // NL char + curbuf->deleted_codeunits++; } } @@ -2831,6 +2834,7 @@ static void ml_flush_line(buf_T *buf) } buf->b_ml.ml_line_lnum = 0; + buf->b_ml.ml_line_offset = 0; } /* @@ -3980,10 +3984,10 @@ static void ml_updatechunk(buf_T *buf, linenr_T line, long len, int updtype) /// Find offset for line or line with offset. /// /// @param buf buffer to use -/// @param lnum if > 0, find offset of lnum, store offset in offp +/// @param lnum if > 0, find offset of lnum, return offset /// if == 0, return line with offset *offp -/// @param offp Location where offset of line is stored, or to read offset to -/// use to find line. In the later case, store remaining offset. +/// @param offp offset to use to find line, store remaining column offset +/// Should be NULL when getting offset of line /// @param no_ff ignore 'fileformat' option, always use one byte for NL. /// /// @return -1 if information is not available @@ -4003,8 +4007,22 @@ long ml_find_line_or_offset(buf_T *buf, linenr_T lnum, long *offp, bool no_ff) int ffdos = !no_ff && (get_fileformat(buf) == EOL_DOS); int extra = 0; - // take care of cached line first - ml_flush_line(buf); + // take care of cached line first. Only needed if the cached line is before + // the requested line. Additionally cache the value for the cached line. + // This is used by the extmark code which needs the byte offset of the edited + // line. So when doing multiple small edits on the same line the value is + // only calculated once. + // + // NB: caching doesn't work with 'fileformat'. This is not a problem for + // bytetracking, as bytetracking ignores 'fileformat' option. But calling + // line2byte() will invalidate the cache for the time being (this function + // was never cached to start with anyway). + bool can_cache = (lnum != 0 && !ffdos && buf->b_ml.ml_line_lnum == lnum); + if (lnum == 0 || buf->b_ml.ml_line_lnum < lnum || !no_ff) { + ml_flush_line(curbuf); + } else if (can_cache && buf->b_ml.ml_line_offset > 0) { + return buf->b_ml.ml_line_offset; + } if (buf->b_ml.ml_usedchunks == -1 || buf->b_ml.ml_chunksize == NULL @@ -4100,6 +4118,10 @@ long ml_find_line_or_offset(buf_T *buf, linenr_T lnum, long *offp, bool no_ff) } } + if (can_cache && size > 0) { + buf->b_ml.ml_line_offset = size; + } + return size; } |