diff options
Diffstat (limited to 'runtime/lua/vim')
-rw-r--r-- | runtime/lua/vim/_init_packages.lua | 1 | ||||
-rw-r--r-- | runtime/lua/vim/text.lua | 32 |
2 files changed, 33 insertions, 0 deletions
diff --git a/runtime/lua/vim/_init_packages.lua b/runtime/lua/vim/_init_packages.lua index 8750afba34..4a961970cc 100644 --- a/runtime/lua/vim/_init_packages.lua +++ b/runtime/lua/vim/_init_packages.lua @@ -57,6 +57,7 @@ vim._submodules = { fs = true, iter = true, re = true, + text = true, } -- These are for loading runtime modules in the vim namespace lazily. diff --git a/runtime/lua/vim/text.lua b/runtime/lua/vim/text.lua new file mode 100644 index 0000000000..cfb0f9b821 --- /dev/null +++ b/runtime/lua/vim/text.lua @@ -0,0 +1,32 @@ +--- Text processing functions. + +local M = {} + +--- Hex encode a string. +--- +--- @param str string String to encode +--- @return string Hex encoded string +function M.hexencode(str) + local bytes = { str:byte(1, #str) } + local enc = {} ---@type string[] + for i = 1, #bytes do + enc[i] = string.format('%02X', bytes[i]) + end + return table.concat(enc) +end + +--- Hex decode a string. +--- +--- @param enc string String to decode +--- @return string Decoded string +function M.hexdecode(enc) + assert(#enc % 2 == 0, 'string must have an even number of hex characters') + local str = {} ---@type string[] + for i = 1, #enc, 2 do + local n = assert(tonumber(enc:sub(i, i + 1), 16)) + str[#str + 1] = string.char(n) + end + return table.concat(str) +end + +return M |