dockerfile.js
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// CodeMirror, copyright (c) by Marijn Haverbeke and others
// Distributed under an MIT license: http://codemirror.net/LICENSE
(function(mod) {
if (typeof exports == "object" && typeof module == "object") // CommonJS
mod(require("../../lib/codemirror"), require("../../addon/mode/simple"));
else if (typeof define == "function" && define.amd) // AMD
define(["../../lib/codemirror", "../../addon/mode/simple"], mod);
else // Plain browser env
mod(CodeMirror);
})(function(CodeMirror) {
"use strict";
// Collect all Dockerfile directives
var instructions = ["from", "maintainer", "run", "cmd", "expose", "env",
"add", "copy", "entrypoint", "volume", "user",
"workdir", "onbuild"],
instructionRegex = "(" + instructions.join('|') + ")",
instructionOnlyLine = new RegExp(instructionRegex + "\\s*$", "i"),
instructionWithArguments = new RegExp(instructionRegex + "(\\s+)", "i");
CodeMirror.defineSimpleMode("dockerfile", {
start: [
// Block comment: This is a line starting with a comment
{
regex: /#.*$/,
token: "comment"
},
// Highlight an instruction without any arguments (for convenience)
{
regex: instructionOnlyLine,
token: "variable-2"
},
// Highlight an instruction followed by arguments
{
regex: instructionWithArguments,
token: ["variable-2", null],
next: "arguments"
},
{
regex: /./,
token: null
}
],
arguments: [
{
// Line comment without instruction arguments is an error
regex: /#.*$/,
token: "error",
next: "start"
},
{
regex: /[^#]+\\$/,
token: null
},
{
// Match everything except for the inline comment
regex: /[^#]+/,
token: null,
next: "start"
},
{
regex: /$/,
token: null,
next: "start"
},
// Fail safe return to start
{
token: null,
next: "start"
}
]
});
CodeMirror.defineMIME("text/x-dockerfile", "dockerfile");
});