hexo/node_modules/highlight.js/lib/languages/bash.js

388 lines
6.4 KiB
JavaScript

/*
Language: Bash
Author: vah <vahtenberg@gmail.com>
Contributrors: Benjamin Pannell <contact@sierrasoftworks.com>
Website: https://www.gnu.org/software/bash/
Category: common
*/
/** @type LanguageFn */
function bash(hljs) {
const regex = hljs.regex;
const VAR = {};
const BRACED_VAR = {
begin: /\$\{/,
end: /\}/,
contains: [
"self",
{
begin: /:-/,
contains: [ VAR ]
} // default values
]
};
Object.assign(VAR, {
className: 'variable',
variants: [
{ begin: regex.concat(/\$[\w\d#@][\w\d_]*/,
// negative look-ahead tries to avoid matching patterns that are not
// Perl at all like $ident$, @ident@, etc.
`(?![\\w\\d])(?![$])`) },
BRACED_VAR
]
});
const SUBST = {
className: 'subst',
begin: /\$\(/,
end: /\)/,
contains: [ hljs.BACKSLASH_ESCAPE ]
};
const HERE_DOC = {
begin: /<<-?\s*(?=\w+)/,
starts: { contains: [
hljs.END_SAME_AS_BEGIN({
begin: /(\w+)/,
end: /(\w+)/,
className: 'string'
})
] }
};
const QUOTE_STRING = {
className: 'string',
begin: /"/,
end: /"/,
contains: [
hljs.BACKSLASH_ESCAPE,
VAR,
SUBST
]
};
SUBST.contains.push(QUOTE_STRING);
const ESCAPED_QUOTE = {
className: '',
begin: /\\"/
};
const APOS_STRING = {
className: 'string',
begin: /'/,
end: /'/
};
const ARITHMETIC = {
begin: /\$?\(\(/,
end: /\)\)/,
contains: [
{
begin: /\d+#[0-9a-f]+/,
className: "number"
},
hljs.NUMBER_MODE,
VAR
]
};
const SH_LIKE_SHELLS = [
"fish",
"bash",
"zsh",
"sh",
"csh",
"ksh",
"tcsh",
"dash",
"scsh",
];
const KNOWN_SHEBANG = hljs.SHEBANG({
binary: `(${SH_LIKE_SHELLS.join("|")})`,
relevance: 10
});
const FUNCTION = {
className: 'function',
begin: /\w[\w\d_]*\s*\(\s*\)\s*\{/,
returnBegin: true,
contains: [ hljs.inherit(hljs.TITLE_MODE, { begin: /\w[\w\d_]*/ }) ],
relevance: 0
};
const KEYWORDS = [
"if",
"then",
"else",
"elif",
"fi",
"for",
"while",
"in",
"do",
"done",
"case",
"esac",
"function"
];
const LITERALS = [
"true",
"false"
];
// to consume paths to prevent keyword matches inside them
const PATH_MODE = { match: /(\/[a-z._-]+)+/ };
// http://www.gnu.org/software/bash/manual/html_node/Shell-Builtin-Commands.html
const SHELL_BUILT_INS = [
"break",
"cd",
"continue",
"eval",
"exec",
"exit",
"export",
"getopts",
"hash",
"pwd",
"readonly",
"return",
"shift",
"test",
"times",
"trap",
"umask",
"unset"
];
const BASH_BUILT_INS = [
"alias",
"bind",
"builtin",
"caller",
"command",
"declare",
"echo",
"enable",
"help",
"let",
"local",
"logout",
"mapfile",
"printf",
"read",
"readarray",
"source",
"type",
"typeset",
"ulimit",
"unalias"
];
const ZSH_BUILT_INS = [
"autoload",
"bg",
"bindkey",
"bye",
"cap",
"chdir",
"clone",
"comparguments",
"compcall",
"compctl",
"compdescribe",
"compfiles",
"compgroups",
"compquote",
"comptags",
"comptry",
"compvalues",
"dirs",
"disable",
"disown",
"echotc",
"echoti",
"emulate",
"fc",
"fg",
"float",
"functions",
"getcap",
"getln",
"history",
"integer",
"jobs",
"kill",
"limit",
"log",
"noglob",
"popd",
"print",
"pushd",
"pushln",
"rehash",
"sched",
"setcap",
"setopt",
"stat",
"suspend",
"ttyctl",
"unfunction",
"unhash",
"unlimit",
"unsetopt",
"vared",
"wait",
"whence",
"where",
"which",
"zcompile",
"zformat",
"zftp",
"zle",
"zmodload",
"zparseopts",
"zprof",
"zpty",
"zregexparse",
"zsocket",
"zstyle",
"ztcp"
];
const GNU_CORE_UTILS = [
"chcon",
"chgrp",
"chown",
"chmod",
"cp",
"dd",
"df",
"dir",
"dircolors",
"ln",
"ls",
"mkdir",
"mkfifo",
"mknod",
"mktemp",
"mv",
"realpath",
"rm",
"rmdir",
"shred",
"sync",
"touch",
"truncate",
"vdir",
"b2sum",
"base32",
"base64",
"cat",
"cksum",
"comm",
"csplit",
"cut",
"expand",
"fmt",
"fold",
"head",
"join",
"md5sum",
"nl",
"numfmt",
"od",
"paste",
"ptx",
"pr",
"sha1sum",
"sha224sum",
"sha256sum",
"sha384sum",
"sha512sum",
"shuf",
"sort",
"split",
"sum",
"tac",
"tail",
"tr",
"tsort",
"unexpand",
"uniq",
"wc",
"arch",
"basename",
"chroot",
"date",
"dirname",
"du",
"echo",
"env",
"expr",
"factor",
// "false", // keyword literal already
"groups",
"hostid",
"id",
"link",
"logname",
"nice",
"nohup",
"nproc",
"pathchk",
"pinky",
"printenv",
"printf",
"pwd",
"readlink",
"runcon",
"seq",
"sleep",
"stat",
"stdbuf",
"stty",
"tee",
"test",
"timeout",
// "true", // keyword literal already
"tty",
"uname",
"unlink",
"uptime",
"users",
"who",
"whoami",
"yes"
];
return {
name: 'Bash',
aliases: [ 'sh' ],
keywords: {
$pattern: /\b[a-z][a-z0-9._-]+\b/,
keyword: KEYWORDS,
literal: LITERALS,
built_in: [
...SHELL_BUILT_INS,
...BASH_BUILT_INS,
// Shell modifiers
"set",
"shopt",
...ZSH_BUILT_INS,
...GNU_CORE_UTILS
]
},
contains: [
KNOWN_SHEBANG, // to catch known shells and boost relevancy
hljs.SHEBANG(), // to catch unknown shells but still highlight the shebang
FUNCTION,
ARITHMETIC,
hljs.HASH_COMMENT_MODE,
HERE_DOC,
PATH_MODE,
QUOTE_STRING,
ESCAPED_QUOTE,
APOS_STRING,
VAR
]
};
}
module.exports = bash;