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gecko-dev/servo/components/selectors
History
Simon Sapin ab9afc9aeb servo: Merge #18171 - Use Parser::skip_whitespace in a few places to make Parser::try rewind less (from servo:skip_whitespace); r=emilio 
**Do not merge yet.** This pulls in unrelated cssparser changes which add a dependency to `dota`, and we’d like to resolve https://github.com/dtolnay/dtoa/pull/9 before landing dtoa in mozilla-central. Also, the dependency change may require manually revendoring in mozilla-central.

Gecko’s CSS parsing microbenchmarks before:

```
  43.437 ±  0.391 ms    Stylo.Servo_StyleSheet_FromUTF8Bytes_Bench
  29.244 ±  0.042 ms    Stylo.Gecko_nsCSSParser_ParseSheet_Bench
 281.884 ±  0.028 ms    Stylo.Servo_DeclarationBlock_SetPropertyById_Bench
 426.242 ±  0.008 ms    Stylo.Servo_DeclarationBlock_SetPropertyById_WithInitialSpace_Bench
```

After:

```
  29.779 ±  0.254 ms    Stylo.Servo_StyleSheet_FromUTF8Bytes_Bench
  28.841 ±  0.031 ms    Stylo.Gecko_nsCSSParser_ParseSheet_Bench
 296.240 ±  4.744 ms    Stylo.Servo_DeclarationBlock_SetPropertyById_Bench
 293.855 ±  4.304 ms    Stylo.Servo_DeclarationBlock_SetPropertyById_WithInitialSpace_Bench
```

Source-Repo: https://github.com/servo/servo
Source-Revision: 8812422bfa504633a7011b0b002e9a2682c7d045

--HG--
extra : subtree_source : https%3A//hg.mozilla.org/projects/converted-servo-linear
extra : subtree_revision : 04932cab7a8b02bce89111c0326689c84cf72d8c
2017-08-25 20:24:58 -05:00
..
attr.rs servo: Merge #18179 - Automatically verify that derive() lists are alphabetically ordered #… (from davidcl:master); r=jdm 2017-08-23 17:18:31 -05:00
bloom.rs servo: Merge #18017 - style: Move all origin-specific cascade data to PerOriginCascadeData (from heycam:split-cascade); r=emilio 2017-08-09 19:28:07 -05:00
build.rs servo: Merge #16915 - Shrink selectors::Component, implement attr selector (in)case-sensitivity (from servo:attr-selectors); r=nox,emilio 2017-05-18 18:45:20 -05:00
builder.rs servo: Merge #18179 - Automatically verify that derive() lists are alphabetically ordered #… (from davidcl:master); r=jdm 2017-08-23 17:18:31 -05:00
Cargo.toml servo: Merge #18171 - Use Parser::skip_whitespace in a few places to make Parser::try rewind less (from servo:skip_whitespace); r=emilio 2017-08-25 20:24:58 -05:00
context.rs servo: Merge #18179 - Automatically verify that derive() lists are alphabetically ordered #… (from davidcl:master); r=jdm 2017-08-23 17:18:31 -05:00
gecko_like_types.rs servo: Merge #18179 - Automatically verify that derive() lists are alphabetically ordered #… (from davidcl:master); r=jdm 2017-08-23 17:18:31 -05:00
lib.rs Backed out changeset a417b9d7712d for vendoring bustage. r=backout on a CLOSED TREE 2017-07-29 00:04:59 +02:00
matching.rs servo: Merge #18213 - Improve debug log related to selector matching (from aethanyc:improve-debug-log); r=emilio 2017-08-24 05:17:27 -05:00
parser.rs servo: Merge #18171 - Use Parser::skip_whitespace in a few places to make Parser::try rewind less (from servo:skip_whitespace); r=emilio 2017-08-25 20:24:58 -05:00
README.md
sink.rs servo: Merge #17439 - Match compound selectors left-to-right (second try) (from bholley:compound_left_to_right); r=SimonSapin 2017-06-21 09:28:43 -07:00
size_of_tests.rs servo: Merge #17687 - Support parsing ::-moz-tree-* pseudo-elements selector (from upsuper:tree-pseudo); r=heycam 2017-07-12 03:35:37 -07:00
tree.rs servo: Merge #18104 - style: Skip matching :nth-child if element is the root of anonymous subtree (from aethanyc:fix-nth-child-xbl-bug1382102); r=emilio 2017-08-16 01:47:46 -05:00
visitor.rs servo: Merge #18232 - Remove unused SelectorIter import (from ferjm:unused.selectoriter); r=emilio 2017-08-25 11:18:12 -05:00

README.md

rust-selectors

CSS Selectors library for Rust. Includes parsing and serilization of selectors, as well as matching against a generic tree of elements. Pseudo-elements and most pseudo-classes are generic as well.

Warning: breaking changes are made to this library fairly frequently (13 times in 2016, for example). However you can use this crate without updating it that often, old versions stay available on crates.io and Cargo will only automatically update to versions that are numbered as compatible.

To see how to use this library with your own tree representation, see Kuchiki’s src/select.rs. (Note however that Kuchiki is not always up to date with the latest rust-selectors version, so that code may need to be tweaked.) If you don’t already have a tree data structure, consider using Kuchiki itself.