Commit graph

20 commits

Author SHA1 Message Date
Max Brunsfeld
d9b8bae629 rust: Include pattern indices when iterating query captures 2019-09-18 14:22:55 -07:00
Max Brunsfeld
186b08381c Terminate failed query matches before descending whenever possible
When iterating over captures, this prevents reasonable queries from 
forcing the tree cursor to buffer matches unnecessarily.
2019-09-18 11:37:49 -07:00
Max Brunsfeld
374a7ac81e Ensure that duplicate captures are ordered by pattern index 2019-09-17 16:27:16 -07:00
Max Brunsfeld
82955759c0 Add an API for getting a pattern's start offset in the source code 2019-09-17 16:19:58 -07:00
Max Brunsfeld
2d1ca8bc9f Fix match return order fom ts_query_cursor_next_match 2019-09-17 14:52:27 -07:00
Max Brunsfeld
7793bf2a5a Clean up query code 2019-09-16 11:33:22 -07:00
Max Brunsfeld
d4d554b2ae Add wasm bindings for predicates 2019-09-16 10:25:44 -07:00
Max Brunsfeld
096126d039 Allow predicates in queries, to match on nodes' text 2019-09-15 22:06:51 -07:00
Max Brunsfeld
86205b9e6d Fix infinite loop on unterminated string in query 2019-09-13 15:19:21 -07:00
Max Brunsfeld
a1fec71b19 Tweak QueryCursor to allow iterating either matches or captures
For syntax highlighting, we want to iterate over all of the captures in 
order, and don't care about grouping the captures by pattern.
2019-09-13 15:19:04 -07:00
Max Brunsfeld
49ce2fddb9 Add wasm binding for running tree queries in a limited range 2019-09-12 12:14:04 -07:00
Max Brunsfeld
67dcbc3e73 Detect error when a prefix of a valid node name is used in a query 2019-09-11 21:23:46 -07:00
Max Brunsfeld
c71de5bd81 Tweak query interface
* Rename TSQueryContext -> TSQueryCursor
* Remove the permanent association between the cursor and its query. The 
cursor can now be used again for a different query.
2019-09-11 17:33:48 -07:00
Max Brunsfeld
c8c75782e3 Allow tree queries to execute within a limited range 2019-09-11 16:49:29 -07:00
Max Brunsfeld
beb5eec7d9 Fix handling of single-node patterns in tree queries 2019-09-11 15:22:32 -07:00
Max Brunsfeld
d674bc139a Fix more bugs in binary search used in tree queries
This binary search implementation differs from Rust's
`slice::binary_search_by` method in how they deal with ties.

In Rust's implementation:

> If there are multiple matches, then any one of the matches
> could be returned.

This implementation needs to return the index of the *first* match.
2019-09-11 14:45:14 -07:00
Max Brunsfeld
33f89522f6 Allow lisp-style comments in tree queries 2019-09-11 12:16:05 -07:00
Max Brunsfeld
4fa0b02d67 Fix management of capture lists in query execution 2019-09-11 12:06:38 -07:00
Max Brunsfeld
60467ae701 Fix bugs in binary search used in tree queries 2019-09-10 22:30:27 -07:00
Max Brunsfeld
fe7c74e7aa Start work on an API for querying trees 2019-09-10 20:53:57 -07:00