Commit c628ce241a21c3444e296cf9e8c993e857f4d365
2015-10-06T17:35:08
Support for command substitution for the Bash language Command substitution is a very important part of the Bash language. Every non trivial script uses it in one way or another. This patch adds support for it.
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diff --git a/components/prism-bash.js b/components/prism-bash.js
index 3f1d1f0..648268b 100644
--- a/components/prism-bash.js
+++ b/components/prism-bash.js
@@ -19,6 +19,13 @@
punctuation: /\(\(?|\)\)?|,|;/
}
},
+ // Command Substitution
+ {
+ pattern: /\$\([^)]+\)|`[^`]+`/,
+ inside: {
+ variable: /^\$\(|^`|\)$|`$/
+ }
+ },
/\$(?:[a-z0-9_#\?\*!@]+|\{[^}]+\})/i
],
};
@@ -61,4 +68,11 @@
'operator': /&&?|\|\|?|==?|!=?|<<<?|>>|<=?|>=?|=~/,
'punctuation': /\$?\(\(?|\)\)?|\.\.|[{}[\];]/
};
+
+ var inside = insideString.variable[1].inside;
+ inside['function'] = Prism.languages.bash['function'];
+ inside.keyword = Prism.languages.bash.keyword;
+ inside.boolean = Prism.languages.bash.boolean;
+ inside.operator = Prism.languages.bash.operator;
+ inside.punctuation = Prism.languages.bash.punctuation;
})(Prism);
\ No newline at end of file
diff --git a/components/prism-bash.min.js b/components/prism-bash.min.js
index ffcd48c..d98420d 100644
--- a/components/prism-bash.min.js
+++ b/components/prism-bash.min.js
@@ -1 +1 @@
-!function(e){var t=/\$(?:[a-z0-9_#\?\-\*!@]+|\{[^}]+\})/i,o={variable:t};e.languages.bash={shebang:{pattern:/^#!\s*\/bin\/bash|^#!\s*\/bin\/sh/,alias:"important"},comment:{pattern:/(^|[^"{\\])#.*/,lookbehind:!0},string:[{pattern:/((?:^|[^<])<<\s*)(?:"|')?(\w+?)(?:"|')?\s*\r?\n(?:[\s\S])*?\r?\n\2/g,lookbehind:!0,inside:o},{pattern:/("|')(?:\\?[\s\S])*?\1/g,inside:o}],number:{pattern:/([^\w\.])-?(0x[\dA-Fa-f]+|\d*\.?\d+([Ee]-?\d+)?)\b/,lookbehind:!0},variable:t,"function":/\b(?:alias|apropos|apt-get|aptitude|aspell|awk|basename|bash|bc|bg|builtin|bzip2|cal|cat|cd|cfdisk|chgrp|chmod|chown|chroot|chkconfig|cksum|clear|cmp|comm|command|cp|cron|crontab|csplit|cut|date|dc|dd|ddrescue|df|diff|diff3|dig|dir|dircolors|dirname|dirs|dmesg|du|egrep|eject|enable|env|ethtool|eval|exec|expand|expect|export|expr|fdformat|fdisk|fg|fgrep|file|find|fmt|fold|format|free|fsck|ftp|fuser|gawk|getopts|git|grep|groupadd|groupdel|groupmod|groups|gzip|hash|head|help|hg|history|hostname|htop|iconv|id|ifconfig|ifdown|ifup|import|install|jobs|join|kill|killall|less|link|ln|locate|logname|logout|look|lpc|lpr|lprint|lprintd|lprintq|lprm|ls|lsof|make|man|mkdir|mkfifo|mkisofs|mknod|more|most|mount|mtools|mtr|mv|mmv|nano|netstat|nice|nl|nohup|notify-send|nslookup|open|op|passwd|paste|pathchk|ping|pkill|popd|pr|printcap|printenv|printf|ps|pushd|pv|pwd|quota|quotacheck|quotactl|ram|rar|rcp|read|readarray|readonly|reboot|rename|renice|remsync|rev|rm|rmdir|rsync|screen|scp|sdiff|sed|seq|service|sftp|shift|shopt|shutdown|sleep|slocate|sort|source|split|ssh|stat|strace|su|sudo|sum|suspend|sync|tail|tar|tee|test|time|timeout|times|touch|top|traceroute|trap|tr|tsort|tty|type|ulimit|umask|umount|unalias|uname|unexpand|uniq|units|unrar|unshar|uptime|useradd|userdel|usermod|users|uuencode|uudecode|v|vdir|vi|vmstat|wait|watch|wc|wget|whereis|which|who|whoami|write|xargs|xdg-open|yes|zip)\b/,keyword:/\b(let|if|then|else|elif|fi|for|break|continue|while|in|case|function|select|do|done|until|echo|exit|return|set|declare)\b/,"boolean":/\b(?:true|false)\b/,operator:/--?|\+\+?|!=?=?|<=?|>=?|==?=?|&&?|\|\|?|\?|\*|\/|~|\^|%/,punctuation:/[{}[\];(),.:]/}}(Prism);
\ No newline at end of file
+!function(e){var t={variable:[{pattern:/\$?\(\([\w\W]+?\)\)/,inside:{variable:[{pattern:/(^\$\(\([\w\W]+)\)\)/,lookbehind:!0},/^\$\(\(/],number:/\b-?(?:0x[\dA-Fa-f]+|\d*\.?\d+(?:[Ee]-?\d+)?)\b/,operator:/--?|-=|\+\+?|\+=|!=?|~|\*\*?|\*=|\/=?|%=?|<<=?|>>=?|<=?|>=?|==?|&&?|&=|\^=?|\|\|?|\|=|\?|:/,punctuation:/\(\(?|\)\)?|,|;/}},{pattern:/\$\([^)]+\)|`[^`]+`/,inside:{variable:/^\$\(|^`|\)$|`$/}},/\$(?:[a-z0-9_#\?\*!@]+|\{[^}]+\})/i]};e.languages.bash={shebang:{pattern:/^#!\s*\/bin\/bash|^#!\s*\/bin\/sh/,alias:"important"},comment:{pattern:/(^|[^"{\\])#.*/,lookbehind:!0},string:[{pattern:/((?:^|[^<])<<\s*)(?:"|')?(\w+?)(?:"|')?\s*\r?\n(?:[\s\S])*?\r?\n\2/g,lookbehind:!0,inside:t},{pattern:/("|')(?:\\?[\s\S])*?\1/g,inside:t}],variable:t.variable,"function":{pattern:/(^|\s|;|\||&)(?:alias|apropos|apt-get|aptitude|aspell|awk|basename|bash|bc|bg|builtin|bzip2|cal|cat|cd|cfdisk|chgrp|chmod|chown|chroot|chkconfig|cksum|clear|cmp|comm|command|cp|cron|crontab|csplit|cut|date|dc|dd|ddrescue|df|diff|diff3|dig|dir|dircolors|dirname|dirs|dmesg|du|egrep|eject|enable|env|ethtool|eval|exec|expand|expect|export|expr|fdformat|fdisk|fg|fgrep|file|find|fmt|fold|format|free|fsck|ftp|fuser|gawk|getopts|git|grep|groupadd|groupdel|groupmod|groups|gzip|hash|head|help|hg|history|hostname|htop|iconv|id|ifconfig|ifdown|ifup|import|install|jobs|join|kill|killall|less|link|ln|locate|logname|logout|look|lpc|lpr|lprint|lprintd|lprintq|lprm|ls|lsof|make|man|mkdir|mkfifo|mkisofs|mknod|more|most|mount|mtools|mtr|mv|mmv|nano|netstat|nice|nl|nohup|notify-send|nslookup|open|op|passwd|paste|pathchk|ping|pkill|popd|pr|printcap|printenv|printf|ps|pushd|pv|pwd|quota|quotacheck|quotactl|ram|rar|rcp|read|readarray|readonly|reboot|rename|renice|remsync|rev|rm|rmdir|rsync|screen|scp|sdiff|sed|seq|service|sftp|shift|shopt|shutdown|sleep|slocate|sort|source|split|ssh|stat|strace|su|sudo|sum|suspend|sync|tail|tar|tee|test|time|timeout|times|touch|top|traceroute|trap|tr|tsort|tty|type|ulimit|umask|umount|unalias|uname|unexpand|uniq|units|unrar|unshar|uptime|useradd|userdel|usermod|users|uuencode|uudecode|v|vdir|vi|vmstat|wait|watch|wc|wget|whereis|which|who|whoami|write|xargs|xdg-open|yes|zip)(?=$|\s|;|\||&)/,lookbehind:!0},keyword:{pattern:/(^|\s|;|\||&)(?:let|:|\.|if|then|else|elif|fi|for|break|continue|while|in|case|function|select|do|done|until|echo|exit|return|set|declare)(?=$|\s|;|\||&)/,lookbehind:!0},"boolean":{pattern:/(^|\s|;|\||&)(?:true|false)(?=$|\s|;|\||&)/,lookbehind:!0},operator:/&&?|\|\|?|==?|!=?|<<<?|>>|<=?|>=?|=~/,punctuation:/\$?\(\(?|\)\)?|\.\.|[{}[\];]/};var a=t.variable[1].inside;a["function"]=e.languages.bash["function"],a.keyword=e.languages.bash.keyword,a.boolean=e.languages.bash.boolean,a.operator=e.languages.bash.operator,a.punctuation=e.languages.bash.punctuation}(Prism);
\ No newline at end of file
diff --git a/tests/languages/bash/command_substitution_feature.test b/tests/languages/bash/command_substitution_feature.test
new file mode 100644
index 0000000..f849829
--- /dev/null
+++ b/tests/languages/bash/command_substitution_feature.test
@@ -0,0 +1,34 @@
+$(echo foo)
+`echo foo`
+"$(echo foo) bar"
+
+----------------------------------------------------
+
+[
+ ["variable", [
+ ["variable", "$("],
+ ["keyword", "echo"],
+ " foo",
+ ["variable", ")"]
+ ]],
+ ["variable", [
+ ["variable", "`"],
+ ["keyword", "echo"],
+ " foo",
+ ["variable", "`"]
+ ]],
+ ["string", [
+ "\"",
+ ["variable", [
+ ["variable", "$("],
+ ["keyword", "echo"],
+ " foo",
+ ["variable", ")"]
+ ]],
+ " bar\""
+ ]]
+]
+
+----------------------------------------------------
+
+Checks for command substitution.
\ No newline at end of file