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| author | Kim Alvefur <zash@zash.se> | 2021-11-12 12:19:01 +0100 |
|---|---|---|
| committer | Kim Alvefur <zash@zash.se> | 2021-11-12 12:19:01 +0100 |
| commit | b9837e2d99bddff368c4b5e2721479093c1f8858 (patch) | |
| tree | 802c9a546ce56bf7f8b473b23f2d42c446116824 | |
| parent | f8afa0807b38482f361eaab228193b53dbebc962 (diff) | |
| download | prosody-b9837e2d99bddff368c4b5e2721479093c1f8858.tar.gz prosody-b9837e2d99bddff368c4b5e2721479093c1f8858.zip | |
util.human.io: Trim any broken UTF-8 from ellipsis
This should fix basic problems with multi-byte UTF-8 sequences getting
cut in the middle.
Down the rabbit hole we go...
| -rw-r--r-- | util/human/io.lua | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/util/human/io.lua b/util/human/io.lua index 2e59ea85..09ed2807 100644 --- a/util/human/io.lua +++ b/util/human/io.lua @@ -1,4 +1,5 @@ local array = require "util.array"; +local utf8 = rawget(_G,"utf8") or require"util.encodings".utf8; local function getchar(n) local stty_ret = os.execute("stty raw -echo 2>/dev/null"); @@ -96,7 +97,10 @@ local function padleft(s, width) end local function ellipsis(s, width) - return s:sub(1, width-1) .. "…"; + if #s <= width then return s; end + s = s:sub(1, width - 1) + while not utf8.len(s) do s = s:sub(1, -2); end + return s .. "…"; end local function new_table(col_specs, max_width) |