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Syntax Highlighting and Language Server for ArangoDB Query Language (AQL)

Provides syntax highlighting and language server features for AQL. This repository was originally inspired and bootstrapped from clintwood's arango-aql-query for Atom Editor and has also taken approaches and formatting from ronsoak's vsc_redshift_extension. ronsoak's article on building a syntax highlighter is also a pleasant read if you are interested in making one for your favorite language.

aql

The highlighter comes with syntax highlighting for template literals to support Foxx and arangojs.

inline-aql

Features

  • Syntax highlighting for AQL
  • Language server with autocompletion for AQL keywords and functions

Building and Running the Extension

To build and run the extension, follow these steps:

  1. Clone the repository:

    git clone https://github.com/monotykamary/vscode-aql.git
cd vscode-aql

  2. Install dependencies:

    npm install

  3. Compile the extension:

    npm run compile

  4. Open the project in Visual Studio Code:

    code .

  5. Press F5 to run the extension in a new Extension Development Host window.

Current Highlighting Support

Keyword highlighting has been taken from ArangoDB's frontend highlighter.

Function highlighting is taken from http://localhost:8529/_db/_system/_api/aql-builtin and is extracted in raw JSON and processed by name in the data folder.

Keywords

Patterns matched to keyword.control:

FOR, RETURN, FILTER, SEARCH, SORT, LIMIT, LET, COLLECT, ASC, DESC, IN, INTO, INSERT, UPDATE, REMOVE, REPLACE, UPSERT, OPTIONS, WITH, AND, OR, NOT, DISTINCT, GRAPH, SHORTEST_PATH, OUTBOUND, INBOUND, ANY, ALL, NONE, AGGREGATE, LIKE, K_SHORTEST_PATHS, PRUNE

Functions

Patterns matched to support.functions:

BM25, TFIDF, BOOST, MIN_MATCH, STARTS_WITH, EXISTS, TOKENS, FULLTEXT, WITHIN_RECTANGLE, WITHIN, NEAR, ASSERT, AVG, AVERAGE, INTERSECTION, POP, IS_DOCUMENT, UNION_DISTINCT, SLEEP, RANGE, DATE_SUBTRACT, PI, DEGREES, MERGE_RECURSIVE, DATE_QUARTER, ATAN2, ACOS, IS_LIST, LENGTH, FIRST_LIST, UNSHIFT, TRIM, EXP, LAST, ATTRIBUTES, PREGEL_RESULT, LOG10, POW, CURRENT_USER, PRODUCT, LOG2, RANDOM_TOKEN, RAND, IN_RANGE, ABS, GEO_AREA, LEVENSHTEIN_MATCH, OUTERSECTION, DATE_DAYS_IN_MONTH, LEVENSHTEIN_DISTANCE, SIN, EXP2, ENCODE_URI_COMPONENT, NGRAM_SIMILARITY, SUM, LOWER, MIN, COS, SUBSTRING, JACCARD, IS_OBJECT, STDDEV_SAMPLE, DATE_TRUNC, SORTED, ATAN, GEO_MULTIPOINT, REGEX_REPLACE, GEO_MULTIPOLYGON, ANALYZER, CONCAT, FIND_LAST, JSON_STRINGIFY, REGEX_TEST, PERCENTILE, NGRAM_POSITIONAL_SIMILARITY, MINUS, LEFT, VALUES, DATE_DAY, NOEVAL, MEDIAN, STDDEV_POPULATION, TO_STRING, IS_NUMBER, FNV64, RADIANS, LOG, MAX, IPV4_FROM_NUMBER, ROUND, RIGHT, UPPER, APPEND, FLATTEN, JSON_PARSE, TYPENAME, TO_HEX, DATE_ROUND, MD5, IS_IN_POLYGON, COLLECTION_COUNT, COUNT, TO_NUMBER, ASIN, TO_BASE64, DATE_ISOWEEK, TO_ARRAY, IS_IPV4, DATE_ISO8601, IS_BOOL, COUNT_UNIQUE, V8, CONTAINS, IS_DATESTRING, REGEX_MATCHES, SPLIT, APPLY, REGEX_SPLIT, UNION, DATE_MILLISECOND, NGRAM_MATCH, RTRIM, FIND_FIRST, LTRIM, CONCAT_SEPARATOR, GEO_CONTAINS, PASSTHRU, GEO_INTERSECTS, IS_SAME_COLLECTION, HASH, FLOOR, IS_KEY, SUBSTITUTE, IPV4_TO_NUMBER, SHA1, CHAR_LENGTH, PUSH, IS_NULL, CRC32, VARIANCE_SAMPLE, VARIANCE_POPULATION, DATE_NOW, VARIANCE, FAIL, COUNT_DISTINCT, UNIQUE, SORTED_UNIQUE, SLICE, REVERSE, SHA512, DATE_HOUR, FIRST, REMOVE_VALUE, NTH, POSITION, CONTAINS_ARRAY, SHIFT, PHRASE, SCHEMA_GET, STDDEV, REMOVE_NTH, REPLACE_NTH, INTERLEAVE, BOOSTSCORE, MERGE, CALL, DATE_MONTH, IS_STRING, DATE_DAYOFWEEK, HAS, KEYS, CURRENT_DATABASE, SQRT, DATE_DIFF, MATCHES, GEO_POINT, GEO_EQUALS, UNSET_RECURSIVE, REMOVE_VALUES, KEEP, TRANSLATE, ZIP, DISTANCE, GEO_POLYGON, GEO_LINESTRING, GEO_MULTILINESTRING, DATE_TIMESTAMP, DATE_YEAR, DATE_SECOND, TO_LIST, LIKE, DATE_DAYOFYEAR, DATE_LEAPYEAR, CEIL, DATE_FORMAT, DATE_ADD, DATE_COMPARE, UUID, NOT_NULL, FIRST_DOCUMENT, IS_ARRAY, PARSE_IDENTIFIER, GEO_DISTANCE, UNSET, DECODE_REV, DATE_MINUTE, COLLECTIONS, WARN, SCHEMA_VALIDATE, SOUNDEX, TAN, VERSION, TO_BOOL, NOOPT, DOCUMENT, CHECK_DOCUMENT

Comments

Pattern matched to comment.single:

Any line starting with a double forward-slash //

Pattern matched to comment.block:

Any block starting with a forward-slash and an asterisk /* ending with an asterisk and forward-slash */

Strings

Patterns matched to string.quoted:

Any string that is encapsulated by single ('), double ("), or template literal (`) quotes

Numbers

Pattern matched to constant.numeric:

Any decimal number

Constants

Pattern matched to constant.language:

Any boolean values (true, false) + null operator

Pattern matched to keyword.operator:

Any non-word comparison or arithmetic operator (except ternary) available at https://www.arangodb.com/docs/stable/aql/operators.html

Roadmap

Highlighting

  • Ternary Operator
  • Parenthesis, Array, and Object wrapping (with expressions)
  • Variables (from @, LET, and RETURN)

Language Features

  • Implement and integrate a language server for autocompletion
  • Implement error-checking
  • Implement jump-to-definitions
  • Add more advanced language server features

Contributing

Contributions are welcome! Please feel free to submit a Pull Request.