You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
103 lines
1.6 KiB
103 lines
1.6 KiB
/*
|
|
Language: Prolog
|
|
Description: Prolog is a general purpose logic programming language associated with artificial intelligence and computational linguistics.
|
|
Author: Raivo Laanemets <raivo@infdot.com>
|
|
Website: https://en.wikipedia.org/wiki/Prolog
|
|
*/
|
|
|
|
function prolog(hljs) {
|
|
const ATOM = {
|
|
|
|
begin: /[a-z][A-Za-z0-9_]*/,
|
|
relevance: 0
|
|
};
|
|
|
|
const VAR = {
|
|
|
|
className: 'symbol',
|
|
variants: [
|
|
{
|
|
begin: /[A-Z][a-zA-Z0-9_]*/
|
|
},
|
|
{
|
|
begin: /_[A-Za-z0-9_]*/
|
|
}
|
|
],
|
|
relevance: 0
|
|
};
|
|
|
|
const PARENTED = {
|
|
|
|
begin: /\(/,
|
|
end: /\)/,
|
|
relevance: 0
|
|
};
|
|
|
|
const LIST = {
|
|
|
|
begin: /\[/,
|
|
end: /\]/
|
|
};
|
|
|
|
const LINE_COMMENT = {
|
|
|
|
className: 'comment',
|
|
begin: /%/,
|
|
end: /$/,
|
|
contains: [ hljs.PHRASAL_WORDS_MODE ]
|
|
};
|
|
|
|
const BACKTICK_STRING = {
|
|
|
|
className: 'string',
|
|
begin: /`/,
|
|
end: /`/,
|
|
contains: [ hljs.BACKSLASH_ESCAPE ]
|
|
};
|
|
|
|
const CHAR_CODE = {
|
|
className: 'string', // 0'a etc.
|
|
begin: /0'(\\'|.)/
|
|
};
|
|
|
|
const SPACE_CODE = {
|
|
className: 'string',
|
|
begin: /0'\\s/ // 0'\s
|
|
};
|
|
|
|
const PRED_OP = { // relevance booster
|
|
begin: /:-/
|
|
};
|
|
|
|
const inner = [
|
|
|
|
ATOM,
|
|
VAR,
|
|
PARENTED,
|
|
PRED_OP,
|
|
LIST,
|
|
LINE_COMMENT,
|
|
hljs.C_BLOCK_COMMENT_MODE,
|
|
hljs.QUOTE_STRING_MODE,
|
|
hljs.APOS_STRING_MODE,
|
|
BACKTICK_STRING,
|
|
CHAR_CODE,
|
|
SPACE_CODE,
|
|
hljs.C_NUMBER_MODE
|
|
];
|
|
|
|
PARENTED.contains = inner;
|
|
LIST.contains = inner;
|
|
|
|
return {
|
|
name: 'Prolog',
|
|
contains: inner.concat([
|
|
{ // relevance booster
|
|
begin: /\.$/
|
|
}
|
|
])
|
|
};
|
|
}
|
|
|
|
module.exports = prolog;
|