setup odin mode
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310
odin-mode.el
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310
odin-mode.el
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;;; odin-mode.el --- A minor mode for odin
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;; Author: Ethan Morgan
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;; Keywords: odin, language, languages, mode
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;; Package-Requires: ((emacs "24.1"))
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;; Homepage: https://github.com/glassofethanol/odin-mode
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;; This file is NOT part of GNU Emacs.
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;;; Code:
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(require 'cl-lib)
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(require 'rx)
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(require 'js)
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(defgroup odin nil
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"Odin mode"
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:group 'languages)
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;; `compilation-mode' configuration
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(eval-after-load 'compile
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'(add-to-list 'compilation-error-regexp-alist '("^\\(.*?\\)(\\([0-9]+\\):\\([0-9]+\\).*" 1 2 3)))
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(defconst odin-mode-syntax-table
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(let ((table (make-syntax-table)))
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(modify-syntax-entry ?\" "\"" table)
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(modify-syntax-entry ?\\ "\\" table)
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;; additional symbols
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(modify-syntax-entry ?' "\"" table)
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(modify-syntax-entry ?` "\"" table)
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(modify-syntax-entry ?: "." table)
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(modify-syntax-entry ?+ "." table)
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(modify-syntax-entry ?- "." table)
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(modify-syntax-entry ?% "." table)
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(modify-syntax-entry ?& "." table)
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(modify-syntax-entry ?| "." table)
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(modify-syntax-entry ?^ "." table)
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(modify-syntax-entry ?! "." table)
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(modify-syntax-entry ?$ "." table)
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(modify-syntax-entry ?= "." table)
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(modify-syntax-entry ?< "." table)
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(modify-syntax-entry ?> "." table)
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(modify-syntax-entry ?? "." table)
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;; Need this for #directive regexes to work correctly
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(modify-syntax-entry ?# "_" table)
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;; Modify some syntax entries to allow nested block comments
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(modify-syntax-entry ?/ ". 124b" table)
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(modify-syntax-entry ?* ". 23n" table)
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(modify-syntax-entry ?\n "> b" table)
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(modify-syntax-entry ?\^m "> b" table)
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table))
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(defconst odin-builtins
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'("len" "cap"
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"typeid_of" "type_info_of"
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"swizzle" "complex" "real" "imag" "quaternion" "conj"
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"jmag" "kmag"
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"min" "max" "abs" "clamp"
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"expand_to_tuple"
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"init_global_temporary_allocator"
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"copy" "pop" "unordered_remove" "ordered_remove" "clear" "reserve"
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"resize" "new" "new_clone" "free" "free_all" "delete" "make"
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"clear_map" "reserve_map" "delete_key" "append_elem" "append_elems"
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"append" "append_string" "clear_dynamic_array" "reserve_dynamic_array"
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"resize_dynamic_array" "incl_elem" "incl_elems" "incl_bit_set"
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"excl_elem" "excl_elems" "excl_bit_set" "incl" "excl" "card"
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"assert" "panic" "unimplemented" "unreachable"))
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(defconst odin-keywords
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'("import" "foreign" "package"
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"where" "when" "if" "else" "for" "switch" "in" "notin" "do" "case"
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"break" "continue" "fallthrough" "defer" "return" "proc"
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"struct" "union" "enum" "bit_field" "bit_set" "map" "dynamic"
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"auto_cast" "cast" "transmute" "distinct" "opaque"
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"using" "inline" "no_inline"
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"size_of" "align_of" "offset_of" "type_of"
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"context"
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;; "_"
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;; Reserved
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"macro" "const"))
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(defconst odin-constants
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'("nil" "true" "false"
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"ODIN_OS" "ODIN_ARCH" "ODIN_ENDIAN" "ODIN_VENDOR"
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"ODIN_VERSION" "ODIN_ROOT" "ODIN_DEBUG"))
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(defconst odin-typenames
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'("bool" "b8" "b16" "b32" "b64"
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"int" "i8" "i16" "i32" "i64"
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"i16le" "i32le" "i64le"
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"i16be" "i32be" "i64be"
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"i128" "u128"
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"i128le" "u128le"
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"i128be" "u128be"
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"uint" "u8" "u16" "u32" "u64"
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"u16le" "u32le" "u64le"
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"u16be" "u32be" "u64be"
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"f32" "f64"
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"complex64" "complex128"
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"quaternion128" "quaternion256"
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"rune"
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"string" "cstring"
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"uintptr" "rawptr"
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"typeid" "any"
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"byte"))
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(defconst odin-attributes
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'("builtin"
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"export"
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"static"
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"deferred_in" "deferred_none" "deferred_out"
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"require_results"
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"default_calling_convention" "link_name" "link_prefix"
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"deprecated" "private" "thread_local"))
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(defconst odin-proc-directives
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'("#force_inline"
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"#force_no_inline"
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"#type")
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"Directives that can appear before a proc declaration")
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(defconst odin-directives
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(append '("#align" "#packed"
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"#any_int"
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"#raw_union"
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"#no_nil"
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"#complete"
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"#no_alias"
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"#c_vararg"
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"#assert"
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"#file" "#line" "#location" "#procedure" "#caller_location"
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"#load"
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"#defined"
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"#bounds_check" "#no_bounds_check"
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"#partial") odin-proc-directives))
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(defun odin-wrap-word-rx (s)
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(concat "\\<" s "\\>"))
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(defun odin-wrap-keyword-rx (s)
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(concat "\\(?:\\S.\\_<\\|\\`\\)" s "\\_>"))
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(defun odin-wrap-directive-rx (s)
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(concat "\\_<" s "\\>"))
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(defun odin-wrap-attribute-rx (s)
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(concat "[[:space:]\n]*@[[:space:]\n]*(?[[:space:]\n]*" s "\\>"))
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(defun odin-keywords-rx (keywords)
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"build keyword regexp"
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(odin-wrap-keyword-rx (regexp-opt keywords t)))
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(defun odin-directives-rx (directives)
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(odin-wrap-directive-rx (regexp-opt directives t)))
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(defun odin-attributes-rx (attributes)
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(odin-wrap-attribute-rx (regexp-opt attributes t)))
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(defconst odin-identifier-rx "[[:word:][:multibyte:]_]+")
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(defconst odin-hat-type-rx (rx (group (and "^" (1+ (any word "." "_"))))))
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(defconst odin-dollar-type-rx (rx (group "$" (or (1+ (any word "_")) (opt "$")))))
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(defconst odin-number-rx
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(rx (and
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symbol-start
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(or (and (+ digit) (opt (and (any "eE") (opt (any "-+")) (+ digit))))
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(and "0" (any "xX") (+ hex-digit)))
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(opt (and (any "_" "A-Z" "a-z") (* (any "_" "A-Z" "a-z" "0-9"))))
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symbol-end)))
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(defconst odin-proc-rx (concat "\\(\\_<" odin-identifier-rx "\\_>\\)\\s *::\\s *\\(" (odin-directives-rx odin-proc-directives) "\\)?\\s *\\_<proc\\_>"))
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(defconst odin-type-rx (concat "\\_<\\(" odin-identifier-rx "\\)\\s *::\\s *\\(?:struct\\|enum\\|union\\|distinct\\)\\s *\\_>"))
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(defconst odin-font-lock-defaults
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`(
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;; Types
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(,odin-hat-type-rx 1 font-lock-type-face)
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(,odin-dollar-type-rx 1 font-lock-type-face)
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(,(odin-keywords-rx odin-typenames) 1 font-lock-type-face)
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(,odin-type-rx 1 font-lock-type-face)
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;; Hash directives
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(,(odin-directives-rx odin-directives) 1 font-lock-preprocessor-face)
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;; At directives
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(,(odin-attributes-rx odin-attributes) 1 font-lock-preprocessor-face)
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;; Keywords
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(,(odin-keywords-rx odin-keywords) 1 font-lock-keyword-face)
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;; single quote characters
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("'\\(\\\\.\\|[^']\\)'" . font-lock-constant-face)
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;; Variables
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(,(odin-keywords-rx odin-builtins) 1 font-lock-builtin-face)
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;; Constants
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(,(odin-keywords-rx odin-constants) 1 font-lock-constant-face)
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;; Strings
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;; ("\\\".*\\\"" . font-lock-string-face)
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;; Numbers
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(,(odin-wrap-word-rx odin-number-rx) . font-lock-constant-face)
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;; Procedures
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(,odin-proc-rx 1 font-lock-function-name-face)
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("---" . font-lock-constant-face)
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("\\.\\.<" . font-lock-constant-face)
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("\\.\\." . font-lock-constant-face)
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))
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;; add setq-local for older emacs versions
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(unless (fboundp 'setq-local)
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(defmacro setq-local (var val)
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`(set (make-local-variable ',var) ,val)))
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(defconst odin--defun-rx "\(.*\).*\{")
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(defmacro odin-paren-level ()
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`(car (syntax-ppss)))
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(defun odin-line-is-defun ()
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"return t if current line begins a procedure"
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(interactive)
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(save-excursion
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(beginning-of-line)
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(let (found)
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(while (and (not (eolp)) (not found))
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(if (looking-at odin--defun-rx)
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(setq found t)
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(forward-char 1)))
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found)))
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(defun odin-beginning-of-defun (&optional count)
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"Go to line on which current function starts."
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(interactive)
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(let ((orig-level (odin-paren-level)))
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(while (and
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(not (odin-line-is-defun))
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(not (bobp))
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(> orig-level 0))
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(setq orig-level (odin-paren-level))
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(while (>= (odin-paren-level) orig-level)
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(skip-chars-backward "^{")
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(backward-char))))
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(if (odin-line-is-defun)
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(beginning-of-line)))
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(defun odin-end-of-defun ()
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"Go to line on which current function ends."
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(interactive)
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(let ((orig-level (odin-paren-level)))
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(when (> orig-level 0)
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(odin-beginning-of-defun)
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(end-of-line)
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(setq orig-level (odin-paren-level))
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(skip-chars-forward "^}")
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(while (>= (odin-paren-level) orig-level)
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(skip-chars-forward "^}")
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(forward-char)))))
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(defalias 'odin-parent-mode
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(if (fboundp 'prog-mode) 'prog-mode 'fundamental-mode))
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;;;###autoload
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(define-derived-mode odin-mode odin-parent-mode "Odin"
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:syntax-table odin-mode-syntax-table
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:group 'odin
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(setq bidi-paragraph-direction 'left-to-right)
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(setq-local require-final-newline mode-require-final-newline)
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(setq-local parse-sexp-ignore-comments t)
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(setq-local comment-start-skip "\\(//+\\|/\\*+\\)\\s *")
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(setq-local comment-start "//")
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(setq-local comment-end "")
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(setq-local indent-line-function 'js-indent-line)
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(setq-local font-lock-defaults '(odin-font-lock-defaults))
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(setq-local beginning-of-defun-function 'odin-beginning-of-defun)
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(setq-local end-of-defun-function 'odin-end-of-defun)
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(setq-local electric-indent-chars
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(append "{}():;," electric-indent-chars))
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(setq imenu-generic-expression
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`(("type" ,(concat "^" odin-type-rx) 1)
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("proc" ,(concat "^" odin-proc-rx) 1)))
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(font-lock-ensure))
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;;;###autoload
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(add-to-list 'auto-mode-alist '("\\.odin\\'" . odin-mode))
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(provide 'odin-mode)
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;;; odin-mode.el ends here
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