feat(vimtex): add which-key mapping descriptions

lua/astrocommunity/markdown-and-latex/vimtex/init.lua

@@ -1 +1,107 @@
-return { "lervag/vimtex", lazy = false }
+return {
+  "lervag/vimtex",
+  lazy = false,
+  init = function()
+    -- add which-key mapping descriptions for VimTex
+    vim.api.nvim_create_autocmd("FileType", {
+      desc = "Set up VimTex Which-Key descriptions",
+      group = vim.api.nvim_create_augroup("vimtex_mapping_descriptions", { clear = true }),
+      pattern = "tex",
+      callback = function(event)
+        local wk = require "which-key"
+        local opts = {
+          mode = "n", -- NORMAL mode
+          buffer = event.buf, -- Specify a buffer number for buffer local mappings to show only in tex buffers
+        }
+        local mappings = {
+          ["<localleader>l"] = {
+            name = "+VimTeX",
+            a = "Show Context Menu",
+            C = "Full Clean",
+            c = "Clean",
+            e = "Show Errors",
+            G = "Show Status for All",
+            g = "Show Status",
+            i = "Show Info",
+            I = "Show Full Info",
+            k = "Stop VimTeX",
+            K = "Stop All VimTeX",
+            L = "Compile Selection",
+            l = "Compile",
+            m = "Show Imaps",
+            o = "Show Compiler Output",
+            q = "Show VimTeX Log",
+            s = "Toggle Main",
+            t = "Open Table of Contents",
+            T = "Toggle Table of Contents",
+            v = "View Compiled Document",
+            X = "Reload VimTeX State",
+            x = "Reload VimTeX",
+          },
+          ["ts"] = {
+            name = "VimTeX Toggles & Cycles", -- optional group name
+            ["$"] = "Cycle inline, display & numbered equation",
+            c = "Toggle star of command",
+            d = "Cycle (), \\left(\\right) [,...]",
+            D = "Reverse Cycle (), \\left(\\right) [, ...]",
+            e = "Toggle star of environment",
+            f = "Toggle a/b vs \\frac{a}{b}",
+          },
+          ["[/"] = "Previous start of a LaTeX comment",
+          ["[*"] = "Previous end of a LaTeX comment",
+          ["[["] = "Previous beginning of a section",
+          ["[]"] = "Previous end of a section",
+          ["[m"] = "Previous \\begin",
+          ["[M"] = "Previous \\end",
+          ["[n"] = "Previous start of a math zone",
+          ["[N"] = "Previous end of a math zone",
+          ["[r"] = "Previous \\begin{frame}",
+          ["[R"] = "Previous \\end{frame}",
+          ["]/"] = "Next start of a LaTeX comment %",
+          ["]*"] = "Next end of a LaTeX comment %",
+          ["]["] = "Next beginning of a section",
+          ["]]"] = "Next end of a section",
+          ["]m"] = "Next \\begin",
+          ["]M"] = "Next \\end",
+          ["]n"] = "Next start of a math zone",
+          ["]N"] = "Next end of a math zone",
+          ["]r"] = "Next \\begin{frame}",
+          ["]R"] = "Next \\end{frame}",
+          ["cs"] = {
+            c = "Change surrounding command",
+            e = "Change surrounding environment",
+            ["$"] = "Change surrounding math zone",
+            d = "Change surrounding delimiter",
+          },
+          ["ds"] = {
+            c = "Delete surrounding command",
+            e = "Delete surrounding environment",
+            ["$"] = "Delete surrounding math zone",
+            d = "Delete surrounding delimiter",
+          },
+        }
+        wk.register(mappings, opts)
+        -- VimTeX Text Objects without variants with targets.vim
+        opts = {
+          mode = "o", -- Operator pending mode
+          buffer = event.buf,
+        }
+        local objects = {
+          ["ic"] = [[LaTeX Command]],
+          ["ac"] = [[LaTeX Command]],
+          ["id"] = [[LaTeX Math Delimiter]],
+          ["ad"] = [[LaTeX Math Delimiter]],
+          ["ie"] = [[LaTeX Environment]],
+          ["ae"] = [[LaTeX Environment]],
+          ["i$"] = [[LaTeX Math Zone]],
+          ["a$"] = [[LaTeX Math Zone]],
+          ["iP"] = [[LaTeX Section, Paragraph, ...]],
+          ["aP"] = [[LaTeX Section, Paragraph, ...]],
+          ["im"] = [[LaTeX Item]],
+          ["am"] = [[LaTeX Item]],
+        }
+        wk.register(objects, opts)
+      end,
+    })
+  end,
+}