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Add config and tokenizer for query language Cypher #3102

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merged 1 commit into from Jul 21, 2022
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Add config and tokenizer for query language Cypher #3102

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24 changes: 24 additions & 0 deletions src/basic-languages/cypher/cypher.contribution.ts
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/*---------------------------------------------------------------------------------------------
* Copyright (c) Microsoft Corporation. All rights reserved.
* Licensed under the MIT License. See License.txt in the project root for license information.
*--------------------------------------------------------------------------------------------*/

import { registerLanguage } from '../_.contribution';

declare var AMD: any;
declare var require: any;

registerLanguage({
id: 'cypher',
extensions: ['.cypher', '.cyp'],
aliases: ['Cypher', 'OpenCypher'],
loader: () => {
if (AMD) {
return new Promise((resolve, reject) => {
require(['vs/basic-languages/cypher/cypher'], resolve, reject);
});
} else {
return import('./cypher');
}
}
});
327 changes: 327 additions & 0 deletions src/basic-languages/cypher/cypher.test.ts
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@@ -0,0 +1,327 @@
/*---------------------------------------------------------------------------------------------
* Copyright (c) Microsoft Corporation. All rights reserved.
* Licensed under the MIT License. See License.txt in the project root for license information.
*--------------------------------------------------------------------------------------------*/

import { testTokenization } from '../test/testRunner';

testTokenization('cypher', [
// Comments
[
{
line: '// Single line comment',
tokens: [{ startIndex: 0, type: 'comment.cypher' }]
}
],
[
{
line: 'MATCH /* comment part */ xyz',
tokens: [
{ startIndex: 0, type: 'keyword.cypher' },
{ startIndex: 5, type: 'white.cypher' },
{ startIndex: 6, type: 'comment.cypher' },
{ startIndex: 24, type: 'white.cypher' },
{ startIndex: 25, type: 'identifier.cypher' }
]
}
],
[
{
line: '/* multi line comment',
tokens: [{ startIndex: 0, type: 'comment.cypher' }]
},
{
line: 'comment continues MATCH // not done yet',
tokens: [{ startIndex: 0, type: 'comment.cypher' }]
},
{
line: 'comment ends */ MATCH',
tokens: [
{ startIndex: 0, type: 'comment.cypher' },
{ startIndex: 15, type: 'white.cypher' },
{ startIndex: 16, type: 'keyword.cypher' }
]
}
],

// Numbers: A decimal (integer or float) literal:
[
{
line: '13',
tokens: [{ startIndex: 0, type: 'number.cypher' }]
}
],
[
{
line: '-40000',
tokens: [{ startIndex: 0, type: 'number.cypher' }]
}
],
[
{
line: '3.14',
tokens: [{ startIndex: 0, type: 'number.float.cypher' }]
}
],
[
{
line: '.314',
tokens: [{ startIndex: 0, type: 'number.float.cypher' }]
}
],
[
{
line: '-.314',
tokens: [{ startIndex: 0, type: 'number.float.cypher' }]
}
],
[
{
line: '6.022E23',
tokens: [{ startIndex: 0, type: 'number.float.cypher' }]
}
],
[
{
line: '-6.022e23',
tokens: [{ startIndex: 0, type: 'number.float.cypher' }]
}
],
[
{
line: '12E10',
tokens: [{ startIndex: 0, type: 'number.float.cypher' }]
}
],
[
{
line: '12e10',
tokens: [{ startIndex: 0, type: 'number.float.cypher' }]
}
],
[
{
line: '12e-10',
tokens: [{ startIndex: 0, type: 'number.float.cypher' }]
}
],
[
{
line: '12E-10',
tokens: [{ startIndex: 0, type: 'number.float.cypher' }]
}
],

// Numbers: A hexadecimal integer literal (starting with 0x)
[
{
line: '0x13af',
tokens: [{ startIndex: 0, type: 'number.hex.cypher' }]
}
],
[
{
line: '0xFC3A9',
tokens: [{ startIndex: 0, type: 'number.hex.cypher' }]
}
],
[
{
line: '-0x66eff',
tokens: [{ startIndex: 0, type: 'number.hex.cypher' }]
}
],

// Numbers: An octal integer literal (starting with 0)
[
{
line: '01372',
tokens: [{ startIndex: 0, type: 'number.octal.cypher' }]
}
],
[
{
line: '02127',
tokens: [{ startIndex: 0, type: 'number.octal.cypher' }]
}
],
[
{
line: '-05671',
tokens: [{ startIndex: 0, type: 'number.octal.cypher' }]
}
],

// Strings: A String literal ('', ""), escaped and non-escaped
[
{
line: '"two \'words\'"',
tokens: [{ startIndex: 0, type: 'string.cypher' }]
}
],
[
{
line: '"two \\"words\\""',
tokens: [{ startIndex: 0, type: 'string.cypher' }]
}
],
[
{
line: '\'two "words"\'',
tokens: [{ startIndex: 0, type: 'string.cypher' }]
}
],
[
{
line: "'two \\'words\\''",
tokens: [{ startIndex: 0, type: 'string.cypher' }]
}
],

// Identifiers wrapped with backtick (``)
[
{
line: '`variable`',
tokens: [{ startIndex: 0, type: 'identifier.escape.cypher' }]
}
],
[
{
line: '`A variable with weird stuff in it[]!`',
tokens: [{ startIndex: 0, type: 'identifier.escape.cypher' }]
}
],
[
{
line: '`Escaped \\`variable\\``',
tokens: [{ startIndex: 0, type: 'identifier.escape.cypher' }]
}
],

// Operators
[
{
line: '1+2',
tokens: [
{ startIndex: 0, type: 'number.cypher' },
{ startIndex: 1, type: 'delimiter.cypher' },
{ startIndex: 2, type: 'number.cypher' }
]
}
],
[
{
line: '1++2',
tokens: [
{ startIndex: 0, type: 'number.cypher' },
{ startIndex: 1, type: '' },
{ startIndex: 3, type: 'number.cypher' }
]
}
],

// Builtin literals: A boolean literal (true | false)
[
{
line: 'true',
tokens: [{ startIndex: 0, type: 'predefined.literal.cypher' }]
}
],
[
{
line: 'false',
tokens: [{ startIndex: 0, type: 'predefined.literal.cypher' }]
}
],
[
{
line: 'TRUE',
tokens: [{ startIndex: 0, type: 'predefined.literal.cypher' }]
}
],
[
{
line: 'FALSE',
tokens: [{ startIndex: 0, type: 'predefined.literal.cypher' }]
}
],

// Builtin literals: A null literal
[
{
line: 'null',
tokens: [{ startIndex: 0, type: 'predefined.literal.cypher' }]
}
],
[
{
line: 'NULL',
tokens: [{ startIndex: 0, type: 'predefined.literal.cypher' }]
}
],

// Builtin functions
[
{
line: 'properties(node)',
tokens: [
{ startIndex: 0, type: 'predefined.function.cypher' },
{ startIndex: 10, type: 'delimiter.parenthesis.cypher' },
{ startIndex: 11, type: 'identifier.cypher' },
{ startIndex: 15, type: 'delimiter.parenthesis.cypher' }
]
}
],
[
{
line: 'left(right("Hello Cypher"))',
tokens: [
{ startIndex: 0, type: 'predefined.function.cypher' },
{ startIndex: 4, type: 'delimiter.parenthesis.cypher' },
{ startIndex: 5, type: 'predefined.function.cypher' },
{ startIndex: 10, type: 'delimiter.parenthesis.cypher' },
{ startIndex: 11, type: 'string.cypher' },
{ startIndex: 25, type: 'delimiter.parenthesis.cypher' }
]
}
],

// Keywords
[
{
line: 'MATCH (n) RETURN n',
tokens: [
{ startIndex: 0, type: 'keyword.cypher' },
{ startIndex: 5, type: 'white.cypher' },
{ startIndex: 6, type: 'delimiter.parenthesis.cypher' },
{ startIndex: 7, type: 'identifier.cypher' },
{ startIndex: 8, type: 'delimiter.parenthesis.cypher' },
{ startIndex: 9, type: 'white.cypher' },
{ startIndex: 10, type: 'keyword.cypher' },
{ startIndex: 16, type: 'white.cypher' },
{ startIndex: 17, type: 'identifier.cypher' }
]
}
],

// Labels on nodes and relationships
[
{
line: '(n:NodeLabel1)-[:RelationshipType]->(:NodeLabel2:NodeLabel3)',
tokens: [
{ startIndex: 0, type: 'delimiter.parenthesis.cypher' },
{ startIndex: 1, type: 'identifier.cypher' },
{ startIndex: 2, type: 'type.identifier.cypher' },
{ startIndex: 13, type: 'delimiter.parenthesis.cypher' },
{ startIndex: 14, type: 'delimiter.cypher' },
{ startIndex: 15, type: 'delimiter.bracket.cypher' },
{ startIndex: 16, type: 'type.identifier.cypher' },
{ startIndex: 33, type: 'delimiter.bracket.cypher' },
{ startIndex: 34, type: 'delimiter.cypher' },
{ startIndex: 36, type: 'delimiter.parenthesis.cypher' },
{ startIndex: 37, type: 'type.identifier.cypher' },
{ startIndex: 59, type: 'delimiter.parenthesis.cypher' }
]
}
]
]);