add snippets for common languages

nvim/.config/nvim/lua/plugins/completion.lua

@@ -9,15 +9,24 @@ return {
 		build = "make install_jsregexp",
 		config = function()
 			local ls = require("luasnip")
-			local s = ls.snippet
-			local t = ls.text_node
-			local i = ls.insert_node
-
-			ls.add_snippets("lua", {
-				s("hello", {
-					t('print("hello world!")'),
-				}),
-			})
+			local snippets_folder = vim.fn.stdpath("config") .. "/snippets"
+			local function load_snippets()
+				-- Load all Lua files in the snippets directory except init.lua
+				local files = vim.fn.glob(snippets_folder .. "/*.lua", false, true)
+				for _, file in ipairs(files) do
+					local filename = vim.fn.fnamemodify(file, ":t")
+					-- Remove .lua extension to get the filetype
+					local ft = filename:match("(.+)%.lua$")
+					if ft then
+						-- Load the file which should return a table of snippets
+						local ok, snippets = pcall(dofile, file)
+						if ok and type(snippets) == "table" then
+							ls.add_snippets(ft, snippets)
+						end
+					end
+				end
+			end
+			load_snippets()
 		end,
 	},
 	{

nvim/.config/nvim/snippets/bash.lua

@@ -0,0 +1,353 @@
+-- Lua snippets
+local ls = require("luasnip")
+local s = ls.snippet
+local t = ls.text_node
+local i = ls.insert_node
+local f = ls.function_node
+local c = ls.choice_node
+local d = ls.dynamic_node
+local sn = ls.snippet_node
+local fmt = require("luasnip.extras.fmt").fmt
+local rep = require("luasnip.extras").rep
+
+-- Return a table of snippets for Bash
+-- stylua: ignore start
+return {
+  -- Shebang
+  s("shebang", {
+    t("#!/usr/bin/env bash"),
+  }),
+
+  -- Bash strict mode
+  s("strict", fmt([[
+  set -euo pipefail
+  IFS=$'\n\t'
+  ]], {})),
+
+  -- Function definition
+  s("func", fmt([[
+  {}() {{
+      {}
+  }}
+  ]], {
+    i(1, "function_name"),
+    i(2, "# function body"),
+  })),
+
+  -- If statement
+  s("if", fmt([[
+  if [ {} ]; then
+      {}
+  fi
+  ]], {
+    i(1, "condition"),
+    i(2, "# code"),
+  })),
+
+  -- If-else statement
+  s("ifelse", fmt([[
+  if [ {} ]; then
+      {}
+  else
+      {}
+  fi
+  ]], {
+    i(1, "condition"),
+    i(2, "# if code"),
+    i(3, "# else code"),
+  })),
+
+  -- If-elif-else statement
+  s("ifelif", fmt([[
+  if [ {} ]; then
+      {}
+  elif [ {} ]; then
+      {}
+  else
+      {}
+  fi
+  ]], {
+    i(1, "condition1"),
+    i(2, "# if code"),
+    i(3, "condition2"),
+    i(4, "# elif code"),
+    i(5, "# else code"),
+  })),
+
+  -- For loop
+  s("for", fmt([[
+  for {} in {}; do
+      {}
+  done
+  ]], {
+    i(1, "item"),
+    i(2, "items"),
+    i(3, "# loop body"),
+  })),
+
+  -- For loop with range
+  s("fori", fmt([[
+  for ((i={}; i<{}; i++)); do
+      {}
+  done
+  ]], {
+    i(1, "0"),
+    i(2, "10"),
+    i(3, "# loop body"),
+  })),
+
+  -- While loop
+  s("while", fmt([[
+  while [ {} ]; do
+      {}
+  done
+  ]], {
+    i(1, "condition"),
+    i(2, "# loop body"),
+  })),
+
+  -- Until loop
+  s("until", fmt([[
+  until [ {} ]; do
+      {}
+  done
+  ]], {
+    i(1, "condition"),
+    i(2, "# loop body"),
+  })),
+
+  -- Case statement
+  s("case", fmt([[
+  case {} in
+      {})
+          {}
+          ;;
+      {})
+          {}
+          ;;
+      *)
+          {}
+          ;;
+  esac
+  ]], {
+    i(1, "variable"),
+    i(2, "pattern1"),
+    i(3, "# code for pattern1"),
+    i(4, "pattern2"),
+    i(5, "# code for pattern2"),
+    i(6, "# default code"),
+  })),
+
+  -- Read input
+  s("read", fmt([[
+  read -p "{}" {}
+  ]], {
+    i(1, "Enter value: "),
+    i(2, "variable"),
+  })),
+
+  -- Command substitution
+  s("cmd", fmt([[
+  {}=$({}$)
+  ]], {
+    i(1, "result"),
+    i(2, "command"),
+  })),
+
+  -- Variable declaration
+  s("var", fmt([[
+  {}="{}"
+  ]], {
+    i(1, "variable"),
+    i(2, "value"),
+  })),
+
+  -- Array declaration
+  s("array", fmt([[
+  {}=({})
+  ]], {
+    i(1, "array"),
+    i(2, "item1 item2 item3"),
+  })),
+
+  -- Check if command exists
+  s("cmdexists", fmt([[
+  if command -v {} &> /dev/null; then
+      {}
+  else
+      {}
+  fi
+  ]], {
+    i(1, "command"),
+    i(2, "# command exists"),
+    i(3, "# command does not exist"),
+  })),
+
+  -- Check if file exists
+  s("fileexists", fmt([[
+  if [ -f {} ]; then
+      {}
+  else
+      {}
+  fi
+  ]], {
+    i(1, "file"),
+    i(2, "# file exists"),
+    i(3, "# file does not exist"),
+  })),
+
+  -- Check if directory exists
+  s("direxists", fmt([[
+  if [ -d {} ]; then
+      {}
+  else
+      {}
+  fi
+  ]], {
+    i(1, "directory"),
+    i(2, "# directory exists"),
+    i(3, "# directory does not exist"),
+  })),
+
+  -- Check if variable is empty
+  s("isempty", fmt([[
+  if [ -z "${{{}}}" ]; then
+      {}
+  else
+      {}
+  fi
+  ]], {
+    i(1, "variable"),
+    i(2, "# variable is empty"),
+    i(3, "# variable is not empty"),
+  })),
+
+  -- Check if variable is not empty
+  s("isnotempty", fmt([[
+  if [ -n "${{{}}}" ]; then
+      {}
+  else
+      {}
+  fi
+  ]], {
+    i(1, "variable"),
+    i(2, "# variable is not empty"),
+    i(3, "# variable is empty"),
+  })),
+
+  -- Error handling
+  s("error", fmt([[
+  error() {{
+      echo "[ERROR] $1" >&2
+      exit 1
+  }}
+  ]], {})),
+
+  -- Parse command line arguments
+  s("getopts", fmt([[
+  while getopts ":{}:" opt; do
+      case $opt in
+          {})
+              {}
+              ;;
+          {})
+              {}
+              ;;
+          \?)
+              echo "Invalid option: -$OPTARG" >&2
+              exit 1
+              ;;
+          :)
+              echo "Option -$OPTARG requires an argument." >&2
+              exit 1
+              ;;
+      esac
+  done
+  shift $((OPTIND-1))
+  ]], {
+    i(1, "ab:c:"),
+    i(2, "a"),
+    i(3, "# handle option a"),
+    i(4, "b"),
+    i(5, "# handle option b with value in $OPTARG"),
+  })),
+
+  -- Trap signals
+  s("trap", fmt([[
+  trap '{}' {}
+  ]], {
+    i(1, "echo 'Caught signal, cleaning up...; exit 1'"),
+    i(2, "SIGINT SIGTERM"),
+  })),
+
+  -- Cleanup function with trap
+  s("cleanup", fmt([[
+  cleanup() {{
+      {}
+  }}
+
+  trap cleanup EXIT
+  ]], {
+    i(1, "# cleanup code here"),
+  })),
+
+  -- Redirect stdout and stderr to file
+  s("redirect", fmt([[
+  {} > {} 2>&1
+  ]], {
+    i(1, "command"),
+    i(2, "logfile.log"),
+  })),
+
+  -- Check exit status
+  s("checkstatus", fmt([[
+  if [ $? -eq 0 ]; then
+      {}
+  else
+      {}
+  fi
+  ]], {
+    i(1, "# success"),
+    i(2, "# failure"),
+  })),
+
+  -- Here document
+  s("heredoc", fmt([[
+  cat << EOF > {}
+  {}
+  EOF
+  ]], {
+    i(1, "output.txt"),
+    i(2, "content goes here"),
+  })),
+
+  -- Here string
+  s("herestring", fmt([[
+  {} <<< "{}"
+  ]], {
+    i(1, "command"),
+    i(2, "string"),
+  })),
+
+  -- Script usage/help
+  s("usage", fmt([[
+  usage() {{
+      cat << EOF
+  Usage: $(basename $0) [options] <arguments>
+
+  Options:
+    -h, --help     Show this help message and exit
+    -v, --verbose  Enable verbose output
+    {}
+
+  Examples:
+    $(basename $0) {}
+  EOF
+      exit ${1:-0}
+  }}
+  ]], {
+    i(1, "-o, --option    Description of option"),
+    i(2, "example_argument"),
+  })),
+}
+-- stylua: ignore end

nvim/.config/nvim/snippets/lua.lua

@@ -0,0 +1,79 @@
+-- Lua snippets
+local ls = require("luasnip")
+local s = ls.snippet
+local t = ls.text_node
+local i = ls.insert_node
+local f = ls.function_node
+local c = ls.choice_node
+local d = ls.dynamic_node
+local sn = ls.snippet_node
+local fmt = require("luasnip.extras.fmt").fmt
+local rep = require("luasnip.extras").rep
+
+-- Return a table of snippets for Lua
+-- stylua: ignore start
+return {
+  -- Basic print statement
+  s("pr", {
+    t('print("'),
+    i(1, "text"),
+    t('")'),
+  }),
+
+  -- Function definition
+  s("fn", fmt([[
+  local function {}({})
+    {}
+  end
+  ]], {
+    i(1, "name"),
+    i(2, ""),
+    i(3, "-- TODO: implement"),
+  })),
+
+  -- Module pattern
+  s("mod", fmt([[
+  local {} = {{}}
+
+  function {}:new(o)
+    o = o or {{}}
+    setmetatable(o, self)
+    self.__index = self
+    return o
+  end
+
+  {}
+
+  return {}
+  ]], {
+    i(1, "ModuleName"),
+    rep(1),
+    i(2, "-- TODO: add methods"),
+    rep(1),
+  })),
+
+  -- For loop
+  s("for", fmt([[
+  for {} = {}, {} do
+    {}
+  end
+  ]], {
+    i(1, "i"),
+    i(2, "1"),
+    i(3, "10"),
+    i(4, "-- TODO: loop body"),
+  })),
+
+  -- For pairs loop
+  s("forp", fmt([[
+  for {}, {} in pairs({}) do
+    {}
+  end
+  ]], {
+    i(1, "k"),
+    i(2, "v"),
+    i(3, "table"),
+    i(4, "-- TODO: loop body"),
+  })),
+}
+-- stylua: ignore end

nvim/.config/nvim/snippets/python.lua

@@ -0,0 +1,75 @@
+-- Python snippets
+local ls = require("luasnip")
+local s = ls.snippet
+local t = ls.text_node
+local i = ls.insert_node
+local f = ls.function_node
+local c = ls.choice_node
+local d = ls.dynamic_node
+local sn = ls.snippet_node
+local fmt = require("luasnip.extras.fmt").fmt
+local rep = require("luasnip.extras").rep
+
+-- Return a table of snippets for Python
+-- stylua: ignore start
+return {
+  -- Print statement
+  s("pr", {
+    t("print("),
+    i(1, "text"),
+    t(")"),
+  }),
+
+  -- Function definition
+  s("def", fmt([[
+  def {}({}):
+      {}
+  ]], {
+    i(1, "function_name"),
+    i(2, ""),
+    i(3, "pass"),
+  })),
+
+  -- Class definition
+  s("class", fmt([[
+  class {}:
+      def __init__(self, {}):
+          {}
+  ]], {
+    i(1, "ClassName"),
+    i(2, ""),
+    i(3, "pass"),
+  })),
+
+  -- For loop
+  s("for", fmt([[
+  for {} in {}:
+      {}
+  ]], {
+    i(1, "item"),
+    i(2, "iterable"),
+    i(3, "pass"),
+  })),
+
+  -- If statement
+  s("if", fmt([[
+  if {}:
+      {}
+  ]], {
+    i(1, "condition"),
+    i(2, "pass"),
+  })),
+
+  -- Try/except
+  s("try", fmt([[
+  try:
+      {}
+  except {}:
+      {}
+  ]], {
+    i(1, "# code"),
+    i(2, "Exception"),
+    i(3, "pass"),
+  })),
+}
+-- stylua: ignore end

nvim/.config/nvim/snippets/rust.lua

@@ -0,0 +1,340 @@
+-- Lua snippets
+local ls = require("luasnip")
+local s = ls.snippet
+local t = ls.text_node
+local i = ls.insert_node
+local f = ls.function_node
+local c = ls.choice_node
+local d = ls.dynamic_node
+local sn = ls.snippet_node
+local fmt = require("luasnip.extras.fmt").fmt
+local rep = require("luasnip.extras").rep
+
+-- Return a table of snippets for Rust
+-- stylua: ignore start
+return {
+  -- Basic main function
+  s("main", fmt([[
+  fn main() {{
+      {}
+  }}
+  ]], {
+    i(1, "// Your code here"),
+  })),
+
+  -- Function definition
+  s("fn", fmt([[
+  fn {}({}) {} {{
+      {}
+  }}
+  ]], {
+    i(1, "function_name"),
+    i(2, ""),
+    c(3, {
+      t(""),
+      t("-> ()"),
+      sn(nil, {t("-> "), i(1, "ReturnType")}),
+    }),
+    i(4, "// Function body"),
+  })),
+
+  -- Public function
+  s("pfn", fmt([[
+  pub fn {}({}) {} {{
+      {}
+  }}
+  ]], {
+    i(1, "function_name"),
+    i(2, ""),
+    c(3, {
+      t(""),
+      t("-> ()"),
+      sn(nil, {t("-> "), i(1, "ReturnType")}),
+    }),
+    i(4, "// Function body"),
+  })),
+
+  -- Struct definition
+  s("struct", fmt([[
+  struct {} {{
+      {}
+  }}
+  ]], {
+    i(1, "StructName"),
+    i(2, "// fields"),
+  })),
+
+  -- Public struct
+  s("pstruct", fmt([[
+  pub struct {} {{
+      {}
+  }}
+  ]], {
+    i(1, "StructName"),
+    i(2, "// fields"),
+  })),
+
+  -- Struct implementation
+  s("impl", fmt([[
+  impl {} {{
+      {}
+  }}
+  ]], {
+    i(1, "StructName"),
+    i(2, "// methods"),
+  })),
+
+  -- Trait implementation
+  s("implfor", fmt([[
+  impl {} for {} {{
+      {}
+  }}
+  ]], {
+    i(1, "Trait"),
+    i(2, "Type"),
+    i(3, "// trait implementation"),
+  })),
+
+  -- Trait definition
+  s("trait", fmt([[
+  trait {} {{
+      {}
+  }}
+  ]], {
+    i(1, "TraitName"),
+    i(2, "// trait methods"),
+  })),
+
+  -- Public trait
+  s("ptrait", fmt([[
+  pub trait {} {{
+      {}
+  }}
+  ]], {
+    i(1, "TraitName"),
+    i(2, "// trait methods"),
+  })),
+
+  -- Enum definition
+  s("enum", fmt([[
+  enum {} {{
+      {},
+  }}
+  ]], {
+    i(1, "EnumName"),
+    i(2, "// variants"),
+  })),
+
+  -- Public enum
+  s("penum", fmt([[
+  pub enum {} {{
+      {},
+  }}
+  ]], {
+    i(1, "EnumName"),
+    i(2, "// variants"),
+  })),
+
+  -- Match expression
+  s("match", fmt([[
+  match {} {{
+      {} => {},
+      _ => {},
+  }}
+  ]], {
+    i(1, "expression"),
+    i(2, "pattern"),
+    i(3, "result"),
+    i(4, "default_result"),
+  })),
+
+  -- If let expression
+  s("iflet", fmt([[
+  if let {} = {} {{
+      {}
+  }}
+  ]], {
+    i(1, "pattern"),
+    i(2, "expression"),
+    i(3, "// code"),
+  })),
+
+  -- While let loop
+  s("whilelet", fmt([[
+  while let {} = {} {{
+      {}
+  }}
+  ]], {
+    i(1, "pattern"),
+    i(2, "expression"),
+    i(3, "// loop body"),
+  })),
+
+  -- For loop
+  s("for", fmt([[
+  for {} in {} {{
+      {}
+  }}
+  ]], {
+    i(1, "item"),
+    i(2, "iterator"),
+    i(3, "// loop body"),
+  })),
+
+  -- Loop
+  s("loop", fmt([[
+  loop {{
+      {}
+
+      {}
+  }}
+  ]], {
+    i(1, "// loop body"),
+    i(2, "break;"),
+  })),
+
+  -- Closure
+  s("closure", fmt([[
+  |{}| {} {{
+      {}
+  }}
+  ]], {
+    i(1, "args"),
+    c(2, {
+      t(""),
+      sn(nil, {t("-> "), i(1, "ReturnType")}),
+    }),
+    i(3, "// closure body"),
+  })),
+
+  -- Derive attribute
+  s("derive", fmt([[
+  #[derive({})]
+  ]], {
+    i(1, "Debug, Clone"),
+  })),
+
+  -- Module
+  s("mod", fmt([[
+  mod {} {{
+      {}
+  }}
+  ]], {
+    i(1, "module_name"),
+    i(2, "// module contents"),
+  })),
+
+  -- Public module
+  s("pmod", fmt([[
+  pub mod {} {{
+      {}
+  }}
+  ]], {
+    i(1, "module_name"),
+    i(2, "// module contents"),
+  })),
+
+  -- Use statement
+  s("use", fmt([[
+  use {};
+  ]], {
+    i(1, "path::to::module"),
+  })),
+
+  -- Test module
+  s("testmod", fmt([[
+  #[cfg(test)]
+  mod tests {{
+      use super::*;
+
+      #[test]
+      fn {}() {{
+          {}
+      }}
+  }}
+  ]], {
+    i(1, "test_name"),
+    i(2, "// test code"),
+  })),
+
+  -- Test function
+  s("test", fmt([[
+  #[test]
+  fn {}() {{
+      {}
+  }}
+  ]], {
+    i(1, "test_name"),
+    i(2, "// test code"),
+  })),
+
+  -- Async function
+  s("async", fmt([[
+  async fn {}({}) {} {{
+      {}
+  }}
+  ]], {
+    i(1, "function_name"),
+    i(2, ""),
+    c(3, {
+      t(""),
+      t("-> ()"),
+      sn(nil, {t("-> "), i(1, "ReturnType")}),
+    }),
+    i(4, "// async function body"),
+  })),
+
+  -- Result type
+  s("result", fmt([[
+  Result<{}, {}>
+  ]], {
+    i(1, "T"),
+    i(2, "Error"),
+  })),
+
+  -- Option type
+  s("option", fmt([[
+  Option<{}>
+  ]], {
+    i(1, "T"),
+  })),
+
+  -- Unwrap with error message
+  s("expect", fmt([[
+  .expect("{}")
+  ]], {
+    i(1, "Failed to unwrap value"),
+  })),
+
+  -- Print debug
+  s("dbg", fmt([[
+  dbg!({});
+  ]], {
+    i(1, "expression"),
+  })),
+
+  -- Print
+  s("print", fmt([[
+  println!("{}", {});
+  ]], {
+    i(1, "{}"),
+    i(2, "expression"),
+  })),
+
+  -- Let statement
+  s("let", fmt([[
+  let {} = {};
+  ]], {
+    i(1, "variable"),
+    i(2, "value"),
+  })),
+
+  -- Let mut statement
+  s("letmut", fmt([[
+  let mut {} = {};
+  ]], {
+    i(1, "variable"),
+    i(2, "value"),
+  })),
+}
+-- stylua: ignore end