more work on slices for C

unfortunately C does not allow checks for string literals via macros
* compiler builtins exist like __builtin_constant_p for gcc and clang,
but they are not portable

.config/nvim/lua/my_fmt.lua

@@ -9,6 +9,12 @@ local has_conform, conform = pcall(require, 'conform')
 if not has_conform then return end
 -- local util = conform.util
 
+---ruff.toml
+-- line-length = 100
+-- [format]
+-- quote-style = "single"
+-- indent-style = "space"
+
 -- ruff_format: no cmd for combined linting and fmt yet https://github.com/astral-sh/ruff/issues/8232
 -- stylua: cargo install stylua --features lua52
 local fmts_by_ft = {
@@ -17,7 +23,7 @@ local fmts_by_ft = {
   c = { 'clang-format' }, -- // clang-format off|on
   cpp = { 'clang-format' }, -- // clang-format off|on
   lua = { 'stylua' }, -- stylua: ignore start|end
-  python = { 'ruff_format' }, -- # fmt: off|on, # fmt: skip
+  -- python = { 'ruff_format' }, -- # fmt: off|on, # fmt: skip
   rust = { 'rustfmt', lsp_format = 'prefer' },
   sh = { 'shfmt' },
   shtml = { 'superhtml' },

.config/nvim/lua/my_plugins.lua

@@ -138,6 +138,7 @@ return {
   -- surround with brackets, quotes, call etc
   -- adjust inner padding srn{{   }}: { a ={ b = {c} } }
   -- sf/F to find left/right surrounding, sh to highlight left/right surrounding
+  -- selection + sa/sd/sr + key also works!
   { 'echasnovski/mini.surround', config = function() require('mini.surround').setup() end },
 
   -- idea gm,gx,gsi conflicts