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-rw-r--r--runtime/doc/builtin.txt43
1 files changed, 26 insertions, 17 deletions
diff --git a/runtime/doc/builtin.txt b/runtime/doc/builtin.txt
index fdee409639..08c8e2e9d6 100644
--- a/runtime/doc/builtin.txt
+++ b/runtime/doc/builtin.txt
@@ -6921,29 +6921,38 @@ setbufvar({buf}, {varname}, {val}) *setbufvar()*
setcellwidths({list}) *setcellwidths()*
Specify overrides for cell widths of character ranges. This
- tells Vim how wide characters are, counted in screen cells.
- This overrides 'ambiwidth'. Example: >
- setcellwidths([[0xad, 0xad, 1],
- \ [0x2194, 0x2199, 2]])
-
-< *E1109* *E1110* *E1111* *E1112* *E1113* *E1114*
- The {list} argument is a list of lists with each three
- numbers. These three numbers are [low, high, width]. "low"
- and "high" can be the same, in which case this refers to one
- character. Otherwise it is the range of characters from "low"
- to "high" (inclusive). "width" is either 1 or 2, indicating
- the character width in screen cells.
- An error is given if the argument is invalid, also when a
- range overlaps with another.
+ tells Vim how wide characters are when displayed in the
+ terminal, counted in screen cells. The values override
+ 'ambiwidth'. Example: >
+ call setcellwidths([
+ \ [0x111, 0x111, 1],
+ \ [0x2194, 0x2199, 2],
+ \ ])
+
+< The {list} argument is a List of Lists with each three
+ numbers: [{low}, {high}, {width}]. *E1109* *E1110*
+ {low} and {high} can be the same, in which case this refers to
+ one character. Otherwise it is the range of characters from
+ {low} to {high} (inclusive). *E1111* *E1114*
Only characters with value 0x100 and higher can be used.
+ {width} must be either 1 or 2, indicating the character width
+ in screen cells. *E1112*
+ An error is given if the argument is invalid, also when a
+ range overlaps with another. *E1113*
+
If the new value causes 'fillchars' or 'listchars' to become
invalid it is rejected and an error is given.
- To clear the overrides pass an empty list: >
- setcellwidths([]);
+ To clear the overrides pass an empty {list}: >
+ call setcellwidths([])
+
< You can use the script $VIMRUNTIME/tools/emoji_list.vim to see
- the effect for known emoji characters.
+ the effect for known emoji characters. Move the cursor
+ through the text to check if the cell widths of your terminal
+ match with what Vim knows about each emoji. If it doesn't
+ look right you need to adjust the {list} argument.
+
setcharpos({expr}, {list}) *setcharpos()*
Same as |setpos()| but uses the specified column number as the