mql-filetype.nvim

A neovim plugin for changing filetypes from MQL4/MQL5 to c/cpp.

Backgrounds

By default, MQL4/MQL5 have:

• No syntax highlights
• No linting support.

It's a tough road.

If you change filetypes to c/cpp, you will get

• Syntax highlights
• Unperfect intellisence from clangd/ccls
• So many linting errors

However, this is much better than the default.
(Linting errors should be omitted by lspconfig.)

Features

Main features

• Change filetype *.mq4 to c.
• Change filetype *.mq5 to cpp.
• Change *.mqh filetype to c/cpp depending on the conditions.

Requirement

• nvim v0.10.2 (Seems to work in older versions.)

Intellisence

If you require intellisence support:

• Setup clangd or ccls in lspconfig
• Omit errors

Warning

The code analyzing is not perfect, because of the differences between c/cpp and mql4/mql5.

Installation

Using Lazy.nvim

-- Minimum config:
return {
   'riodelphino/mql-filetype.nvim',
   lazy = true,
   event = { 'BufReadPre *.mq[45h]', 'BufNewFile *.mq[45h]' },
}

Default options

opts = {
   extension = {
      mq4 = 'c',
      mq5 = 'cpp',
      mqh = 'c',
   },
   mqh = {
      modifier = {
         c = { '^// mql4$', '^// MQL4$' },
         cpp = { '^// mql5$', '^// MQL5$' },
      },
   },
}

Conditions

With default options, filetype changings are processed by below conditions.

*.mq4, *.mq5:

File pattern	Changed to
*.mq4	c
*.mq5	cpp

*.mqh:

File pattern	First line	Changed to
*.mqh	// mql4 or // MQL4	c
*.mqh	// mql5 or // MQL5	cpp
*.mqh	None of above	c

This means:

• *.mq4 is forced to be c.
• *.mq5 is forced to be cpp.
• *.mqh is changed to c or cpp, depends on the first line.

License

MIT License