Prism.languages.bison = Prism.languages.extend('c', {});
Prism.languages.insertBefore('bison', 'comment', {
bison: {
// This should match all the beginning of the file
// including the prologue(s), the bison declarations and
// the grammar rules.
pattern: /^(?:[^%]|%(?!%))*%%[\s\S]*?%%/,
inside: {
c: {
// Allow for one level of nested braces
pattern: /%\{[\s\S]*?%\}|\{(?:\{[^}]*\}|[^{}])*\}/,
inside: {
delimiter: {
pattern: /^%?\{|%?\}$/,
alias: 'punctuation',
},
'bison-variable': {
pattern: /[$@](?:<[^\s>]+>)?[\w$]+/,
alias: 'variable',
inside: {
punctuation: /<|>/,
},
},
rest: Prism.languages.c,
},
},
comment: Prism.languages.c.comment,
string: Prism.languages.c.string,
property: /\S+(?=:)/,
keyword: /%\w+/,
number: {
pattern: /(^|[^@])\b(?:0x[\da-f]+|\d+)/i,
lookbehind: true,
},
punctuation: /%[%?]|[|:;\[\]<>]/,
},
},
});
