kmx.io/prism.js/components/prism-bash.js

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• Hash : 6b824d47
  Author :
  Date : 2022-08-18T16:43:17
  

  Bash: Added "sh" alias (#3509) Co-authored-by: RunDevelopment <mitchi5000.ms@googlemail.com>

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• components/prism-bash.js

• (function (Prism) {
  	// $ set | grep '^[A-Z][^[:space:]]*=' | cut -d= -f1 | tr '\n' '|'
  	// + LC_ALL, RANDOM, REPLY, SECONDS.
  	// + make sure PS1..4 are here as they are not always set,
  	// - some useless things.
  	var envVars = '\\b(?:BASH|BASHOPTS|BASH_ALIASES|BASH_ARGC|BASH_ARGV|BASH_CMDS|BASH_COMPLETION_COMPAT_DIR|BASH_LINENO|BASH_REMATCH|BASH_SOURCE|BASH_VERSINFO|BASH_VERSION|COLORTERM|COLUMNS|COMP_WORDBREAKS|DBUS_SESSION_BUS_ADDRESS|DEFAULTS_PATH|DESKTOP_SESSION|DIRSTACK|DISPLAY|EUID|GDMSESSION|GDM_LANG|GNOME_KEYRING_CONTROL|GNOME_KEYRING_PID|GPG_AGENT_INFO|GROUPS|HISTCONTROL|HISTFILE|HISTFILESIZE|HISTSIZE|HOME|HOSTNAME|HOSTTYPE|IFS|INSTANCE|JOB|LANG|LANGUAGE|LC_ADDRESS|LC_ALL|LC_IDENTIFICATION|LC_MEASUREMENT|LC_MONETARY|LC_NAME|LC_NUMERIC|LC_PAPER|LC_TELEPHONE|LC_TIME|LESSCLOSE|LESSOPEN|LINES|LOGNAME|LS_COLORS|MACHTYPE|MAILCHECK|MANDATORY_PATH|NO_AT_BRIDGE|OLDPWD|OPTERR|OPTIND|ORBIT_SOCKETDIR|OSTYPE|PAPERSIZE|PATH|PIPESTATUS|PPID|PS1|PS2|PS3|PS4|PWD|RANDOM|REPLY|SECONDS|SELINUX_INIT|SESSION|SESSIONTYPE|SESSION_MANAGER|SHELL|SHELLOPTS|SHLVL|SSH_AUTH_SOCK|TERM|UID|UPSTART_EVENTS|UPSTART_INSTANCE|UPSTART_JOB|UPSTART_SESSION|USER|WINDOWID|XAUTHORITY|XDG_CONFIG_DIRS|XDG_CURRENT_DESKTOP|XDG_DATA_DIRS|XDG_GREETER_DATA_DIR|XDG_MENU_PREFIX|XDG_RUNTIME_DIR|XDG_SEAT|XDG_SEAT_PATH|XDG_SESSION_DESKTOP|XDG_SESSION_ID|XDG_SESSION_PATH|XDG_SESSION_TYPE|XDG_VTNR|XMODIFIERS)\\b';
  
  	var commandAfterHeredoc = {
  		pattern: /(^(["']?)\w+\2)[ \t]+\S.*/,
  		lookbehind: true,
  		alias: 'punctuation', // this looks reasonably well in all themes
  		inside: null // see below
  	};
  
  	var insideString = {
  		'bash': commandAfterHeredoc,
  		'environment': {
  			pattern: RegExp('\\$' + envVars),
  			alias: 'constant'
  		},
  		'variable': [
  			// [0]: Arithmetic Environment
  			{
  				pattern: /\$?\(\([\s\S]+?\)\)/,
  				greedy: true,
  				inside: {
  					// If there is a $ sign at the beginning highlight $(( and )) as variable
  					'variable': [
  						{
  							pattern: /(^\$\(\([\s\S]+)\)\)/,
  							lookbehind: true
  						},
  						/^\$\(\(/
  					],
  					'number': /\b0x[\dA-Fa-f]+\b|(?:\b\d+(?:\.\d*)?|\B\.\d+)(?:[Ee]-?\d+)?/,
  					// Operators according to https://www.gnu.org/software/bash/manual/bashref.html#Shell-Arithmetic
  					'operator': /--|\+\+|\*\*=?|<<=?|>>=?|&&|\|\||[=!+\-*/%<>^&|]=?|[?~:]/,
  					// If there is no $ sign at the beginning highlight (( and )) as punctuation
  					'punctuation': /\(\(?|\)\)?|,|;/
  				}
  			},
  			// [1]: Command Substitution
  			{
  				pattern: /\$\((?:\([^)]+\)|[^()])+\)|`[^`]+`/,
  				greedy: true,
  				inside: {
  					'variable': /^\$\(|^`|\)$|`$/
  				}
  			},
  			// [2]: Brace expansion
  			{
  				pattern: /\$\{[^}]+\}/,
  				greedy: true,
  				inside: {
  					'operator': /:[-=?+]?|[!\/]|##?|%%?|\^\^?|,,?/,
  					'punctuation': /[\[\]]/,
  					'environment': {
  						pattern: RegExp('(\\{)' + envVars),
  						lookbehind: true,
  						alias: 'constant'
  					}
  				}
  			},
  			/\$(?:\w+|[#?*!@$])/
  		],
  		// Escape sequences from echo and printf's manuals, and escaped quotes.
  		'entity': /\\(?:[abceEfnrtv\\"]|O?[0-7]{1,3}|U[0-9a-fA-F]{8}|u[0-9a-fA-F]{4}|x[0-9a-fA-F]{1,2})/
  	};
  
  	Prism.languages.bash = {
  		'shebang': {
  			pattern: /^#!\s*\/.*/,
  			alias: 'important'
  		},
  		'comment': {
  			pattern: /(^|[^"{\\$])#.*/,
  			lookbehind: true
  		},
  		'function-name': [
  			// a) function foo {
  			// b) foo() {
  			// c) function foo() {
  			// but not “foo {”
  			{
  				// a) and c)
  				pattern: /(\bfunction\s+)[\w-]+(?=(?:\s*\(?:\s*\))?\s*\{)/,
  				lookbehind: true,
  				alias: 'function'
  			},
  			{
  				// b)
  				pattern: /\b[\w-]+(?=\s*\(\s*\)\s*\{)/,
  				alias: 'function'
  			}
  		],
  		// Highlight variable names as variables in for and select beginnings.
  		'for-or-select': {
  			pattern: /(\b(?:for|select)\s+)\w+(?=\s+in\s)/,
  			alias: 'variable',
  			lookbehind: true
  		},
  		// Highlight variable names as variables in the left-hand part
  		// of assignments (“=” and “+=”).
  		'assign-left': {
  			pattern: /(^|[\s;|&]|[<>]\()\w+(?:\.\w+)*(?=\+?=)/,
  			inside: {
  				'environment': {
  					pattern: RegExp('(^|[\\s;|&]|[<>]\\()' + envVars),
  					lookbehind: true,
  					alias: 'constant'
  				}
  			},
  			alias: 'variable',
  			lookbehind: true
  		},
  		// Highlight parameter names as variables
  		'parameter': {
  			pattern: /(^|\s)-{1,2}(?:\w+:[+-]?)?\w+(?:\.\w+)*(?=[=\s]|$)/,
  			alias: 'variable',
  			lookbehind: true
  		},
  		'string': [
  			// Support for Here-documents https://en.wikipedia.org/wiki/Here_document
  			{
  				pattern: /((?:^|[^<])<<-?\s*)(\w+)\s[\s\S]*?(?:\r?\n|\r)\2/,
  				lookbehind: true,
  				greedy: true,
  				inside: insideString
  			},
  			// Here-document with quotes around the tag
  			// → No expansion (so no “inside”).
  			{
  				pattern: /((?:^|[^<])<<-?\s*)(["'])(\w+)\2\s[\s\S]*?(?:\r?\n|\r)\3/,
  				lookbehind: true,
  				greedy: true,
  				inside: {
  					'bash': commandAfterHeredoc
  				}
  			},
  			// “Normal” string
  			{
  				// https://www.gnu.org/software/bash/manual/html_node/Double-Quotes.html
  				pattern: /(^|[^\\](?:\\\\)*)"(?:\\[\s\S]|\$\([^)]+\)|\$(?!\()|`[^`]+`|[^"\\`$])*"/,
  				lookbehind: true,
  				greedy: true,
  				inside: insideString
  			},
  			{
  				// https://www.gnu.org/software/bash/manual/html_node/Single-Quotes.html
  				pattern: /(^|[^$\\])'[^']*'/,
  				lookbehind: true,
  				greedy: true
  			},
  			{
  				// https://www.gnu.org/software/bash/manual/html_node/ANSI_002dC-Quoting.html
  				pattern: /\$'(?:[^'\\]|\\[\s\S])*'/,
  				greedy: true,
  				inside: {
  					'entity': insideString.entity
  				}
  			}
  		],
  		'environment': {
  			pattern: RegExp('\\$?' + envVars),
  			alias: 'constant'
  		},
  		'variable': insideString.variable,
  		'function': {
  			pattern: /(^|[\s;|&]|[<>]\()(?:add|apropos|apt|apt-cache|apt-get|aptitude|aspell|automysqlbackup|awk|basename|bash|bc|bconsole|bg|bzip2|cal|cargo|cat|cfdisk|chgrp|chkconfig|chmod|chown|chroot|cksum|clear|cmp|column|comm|composer|cp|cron|crontab|csplit|curl|cut|date|dc|dd|ddrescue|debootstrap|df|diff|diff3|dig|dir|dircolors|dirname|dirs|dmesg|docker|docker-compose|du|egrep|eject|env|ethtool|expand|expect|expr|fdformat|fdisk|fg|fgrep|file|find|fmt|fold|format|free|fsck|ftp|fuser|gawk|git|gparted|grep|groupadd|groupdel|groupmod|groups|grub-mkconfig|gzip|halt|head|hg|history|host|hostname|htop|iconv|id|ifconfig|ifdown|ifup|import|install|ip|java|jobs|join|kill|killall|less|link|ln|locate|logname|logrotate|look|lpc|lpr|lprint|lprintd|lprintq|lprm|ls|lsof|lynx|make|man|mc|mdadm|mkconfig|mkdir|mke2fs|mkfifo|mkfs|mkisofs|mknod|mkswap|mmv|more|most|mount|mtools|mtr|mutt|mv|nano|nc|netstat|nice|nl|node|nohup|notify-send|npm|nslookup|op|open|parted|passwd|paste|pathchk|ping|pkill|pnpm|podman|podman-compose|popd|pr|printcap|printenv|ps|pushd|pv|quota|quotacheck|quotactl|ram|rar|rcp|reboot|remsync|rename|renice|rev|rm|rmdir|rpm|rsync|scp|screen|sdiff|sed|sendmail|seq|service|sftp|sh|shellcheck|shuf|shutdown|sleep|slocate|sort|split|ssh|stat|strace|su|sudo|sum|suspend|swapon|sync|sysctl|tac|tail|tar|tee|time|timeout|top|touch|tr|traceroute|tsort|tty|umount|uname|unexpand|uniq|units|unrar|unshar|unzip|update-grub|uptime|useradd|userdel|usermod|users|uudecode|uuencode|v|vcpkg|vdir|vi|vim|virsh|vmstat|wait|watch|wc|wget|whereis|which|who|whoami|write|xargs|xdg-open|yarn|yes|zenity|zip|zsh|zypper)(?=$|[)\s;|&])/,
  			lookbehind: true
  		},
  		'keyword': {
  			pattern: /(^|[\s;|&]|[<>]\()(?:case|do|done|elif|else|esac|fi|for|function|if|in|select|then|until|while)(?=$|[)\s;|&])/,
  			lookbehind: true
  		},
  		// https://www.gnu.org/software/bash/manual/html_node/Shell-Builtin-Commands.html
  		'builtin': {
  			pattern: /(^|[\s;|&]|[<>]\()(?:\.|:|alias|bind|break|builtin|caller|cd|command|continue|declare|echo|enable|eval|exec|exit|export|getopts|hash|help|let|local|logout|mapfile|printf|pwd|read|readarray|readonly|return|set|shift|shopt|source|test|times|trap|type|typeset|ulimit|umask|unalias|unset)(?=$|[)\s;|&])/,
  			lookbehind: true,
  			// Alias added to make those easier to distinguish from strings.
  			alias: 'class-name'
  		},
  		'boolean': {
  			pattern: /(^|[\s;|&]|[<>]\()(?:false|true)(?=$|[)\s;|&])/,
  			lookbehind: true
  		},
  		'file-descriptor': {
  			pattern: /\B&\d\b/,
  			alias: 'important'
  		},
  		'operator': {
  			// Lots of redirections here, but not just that.
  			pattern: /\d?<>|>\||\+=|=[=~]?|!=?|<<[<-]?|[&\d]?>>|\d[<>]&?|[<>][&=]?|&[>&]?|\|[&|]?/,
  			inside: {
  				'file-descriptor': {
  					pattern: /^\d/,
  					alias: 'important'
  				}
  			}
  		},
  		'punctuation': /\$?\(\(?|\)\)?|\.\.|[{}[\];\\]/,
  		'number': {
  			pattern: /(^|\s)(?:[1-9]\d*|0)(?:[.,]\d+)?\b/,
  			lookbehind: true
  		}
  	};
  
  	commandAfterHeredoc.inside = Prism.languages.bash;
  
  	/* Patterns in command substitution. */
  	var toBeCopied = [
  		'comment',
  		'function-name',
  		'for-or-select',
  		'assign-left',
  		'parameter',
  		'string',
  		'environment',
  		'function',
  		'keyword',
  		'builtin',
  		'boolean',
  		'file-descriptor',
  		'operator',
  		'punctuation',
  		'number'
  	];
  	var inside = insideString.variable[1].inside;
  	for (var i = 0; i < toBeCopied.length; i++) {
  		inside[toBeCopied[i]] = Prism.languages.bash[toBeCopied[i]];
  	}
  
  	Prism.languages.sh = Prism.languages.bash;
  	Prism.languages.shell = Prism.languages.bash;
  }(Prism));
  

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