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Author SHA1 Message Date
Volker Mische
daaad78583 Allow match definition if no custom tokens are defined 
`extern` is not only used for custom lexers/tokens, but also to define
custom types for `Error` and `Location`. It should be possible to
have custom error types while having `match` dedefinitions as issue #261
shows.

Fixes #261.
 2018-01-24 05:18:21 -05:00
Niko Matsakis
226cb536c8
Merge pull request #279 from vmx/issue-278 
Return grammar errors first
 2018-01-24 04:41:24 -05:00
Niko Matsakis
88b4e65c22
Merge pull request #281 from gwenn/category 
Specify `parsing` category in Cargo.toml
 2018-01-24 04:19:32 -05:00
Niko Matsakis
c3f810704d
Merge pull request #286 from nikomatsakis/issue-240 
Rework error recovery mechanism
 2018-01-24 04:18:36 -05:00
Niko Matsakis
2e0d114793 add new style error recovery function and adjust tests 
Also, add some detailed tests covering all the cases for error spans.
 2018-01-23 13:14:50 -05:00
Niko Matsakis
1d36900d66 remove LALR annotation, not crucial 2018-01-23 12:49:26 -05:00
Niko Matsakis
dae7c1db35 make last_location into an &mut so we can thread it around 2018-01-23 12:49:26 -05:00
Niko Matsakis
004187aa86 make next_token and token_to_integer more hygienic 2018-01-23 12:49:26 -05:00
Niko Matsakis
3f4ed1e1af add a test for EOF loop 2018-01-23 12:49:26 -05:00
Niko Matsakis
b62a3fc095 make a test demonstrating the lock-in phenomena 2018-01-23 12:49:26 -05:00
Niko Matsakis
3eeb66c93d make unrecognized_token_error more hygienic 2018-01-23 12:49:26 -05:00
Niko Matsakis
a40cd3d0ff rework error recovery to drop tokens and handle EOF more gracefully 2018-01-23 12:49:26 -05:00
Niko Matsakis
94fa24c4a6 add more useful info when DEBUG_PRINT is enabled 2018-01-23 12:49:26 -05:00
Niko Matsakis
3d49e9cffd use lane-table even on LR(0) grammars 
This is needed to avoid infinite loops in error recovery.
 2018-01-23 12:49:26 -05:00
Markus Westerlind
08728df48a Add a test case for issue #240 2018-01-23 12:49:26 -05:00
gwenn
92c3400010 Specify parsing category in Cargo.toml 
https://crates.io/categories/parsing
> Crates to help create parsers of binary and text formats.
 2017-11-26 18:17:32 +01:00
Volker Mische
f309406335 Return grammar errors first 
If some production in the grammar returns an error, give it priority
over built-in errors.

Fixes #278.
 2017-11-23 00:43:31 +01:00
Niko Matsakis
01ccd43789 Merge pull request #254 from joerivanruth/transform-parse-error 
Make ParseError Displayable
 2017-10-15 05:47:15 -04:00
Niko Matsakis
0645c0aada Merge pull request #268 from notriddle/patch-1 
Fix the "no-brackets" example code
 2017-10-15 05:42:36 -04:00
Joeri van Ruth
5c7f81b821 Move internal token to __intern_token. 
Re-export it at the toplevel because client visible types
use it.
 2017-10-05 16:54:45 +02:00
Joeri van Ruth
9d38aa4722 Use a Display'able token type in the internal tokenizer 2017-10-05 16:54:45 +02:00
Joeri van Ruth
517acc3543 Suppress some warnings 2017-10-05 16:54:45 +02:00
Joeri van Ruth
d4669c1226 Change one more () into &'static str 2017-10-05 16:54:45 +02:00
Joeri van Ruth
f71329d454 Make default user error &'static str instead of () 
Because () doesn't implement fmt::Display, which is inconvenient.
 2017-10-05 16:54:45 +02:00
Joeri van Ruth
e51a157122 Also rename map_err to map_error and map_loc to map_location 2017-10-05 16:54:45 +02:00
Joeri van Ruth
564cc5c066 Fix minor nits 
- rename `map_tok` to `map_token`

- Add backticks about unrecognized token
 2017-10-05 16:54:45 +02:00
Joeri van Ruth
27b4b05720 Modify comment 
To trigger Travis rebuild.
 2017-10-05 16:54:45 +02:00
Joeri van Ruth
65d26ae20f Replace expect_err with unwrap_err 
to make it work on older Rust versions.
 2017-10-05 16:54:45 +02:00
Joeri van Ruth
7bdb7126b0 Add utility methods to ParseError 
Add three methods .map_loc(), .map_tok() and .map_err()
that transform the locations, tokens and user error values
inside the ParseError.
 2017-10-05 16:54:45 +02:00
Michael Howell
424e22c5fb Fix the "no-commas" example code 
It translated `<e:T?>` into `e?`, when it should've been `T?`.

`<e:T?>` is a nonterminal bound to the name, `T?` is a nonterminal bound to no name, and `e?` is meaningless.
 2017-10-01 21:25:10 -07:00
Niko Matsakis
08bb4c98b9 Merge pull request #263 from fitzgen/support-associated-types 
Allow actions to return a grammar's type parameter's associated type
 2017-09-21 09:25:36 -04:00
Nick Fitzgerald
b3d667e679 Allow actions to return a grammar's type parameter's associated type 
Supporting this requires determining which `where` clauses apply to the used
type parameters for the nonterminal and symbol types, so that we can bound the
type parameters in such a way that we get access to their associated types.
 2017-09-18 10:15:28 -07:00
Niko Matsakis
ff250d40a0 Merge pull request #264 from fitzgen/where-clauses 
Create an explicit structure for `where` clauses
 2017-09-18 05:01:34 -04:00
Nick Fitzgerald
1cb7716c3b Create an explicit structure for where clauses 
This commit parses a grammar's `where` clauses into a structure that allows us
to see what type parameters are being bound and in what ways.
 2017-09-12 14:25:13 -07:00
Niko Matsakis
4176ff6313 Merge pull request #259 from nikomatsakis/issue-249 
avoid out-of-bounds error in error classification
 2017-08-30 06:25:24 -04:00
Niko Matsakis
7acc771eee avoid out-of-bounds error in error classification 
We still don't get optimal results here, but that's
a separate issue.

Fixes #249.
 2017-08-30 06:04:19 -04:00
Niko Matsakis
1026ef82cd Merge pull request #258 from nikomatsakis/issue-253 
error out with extra tokens, even in parse table mode
 2017-08-30 05:34:20 -04:00
Niko Matsakis
9b7bf48fd8 in lane table mode, run algorithm even with just one reduce 
Otherwise, we get errors in the existing error recovery tests.

cc #240 -- possible fix
 2017-08-29 05:49:53 -04:00
Niko Matsakis
920ee76fec even in parse table, error out if we hit EOF early 2017-08-29 05:46:22 -04:00
Niko Matsakis
f7d274a76a Merge pull request #251 from nick70/master 
Add missing back-tick in tutorial.
 2017-08-29 04:32:50 -04:00
Nicholas Farshidmehr
59d152fa59 Add missing back-tick in tutorial. 2017-08-01 15:54:26 -04:00
Niko Matsakis
9a343f7a04 Merge pull request #245 from mchesser/master 
Embed LALRPOP version in generated files, and check it on rebuild
 2017-07-17 05:27:11 -04:00
Niko Matsakis
690db010be Merge pull request #246 from fitzgen/unrecognized-token-with-expected 
Ignore the possible expected token when we find an unrecognized token
 2017-07-11 13:37:01 -04:00
Nick Fitzgerald
b50124ea54 Ignore the possible expected token when we find an unrecognized token 
This will at least print an error message with the location, rather than
panicking, which is a lot more user-friendly :)
 2017-07-02 09:55:04 -07:00
Michael Chesser
f0a88a823e Embed LARPOP version in generated files, and check it when rebuilding files. 2017-07-01 14:51:40 +09:30
Niko Matsakis
92055a1e2c gah fix regex version 2017-06-16 17:52:36 -04:00
Niko Matsakis
09d333ba11 Merge pull request #239 from nikomatsakis/release-0.13.1 
Release 0.13.1
v0.13.1 v0.14.0 		2017-06-16 15:56:22 -04:00
Niko Matsakis
735eb8779f update README and tutorial 2017-06-16 15:54:50 -04:00
Niko Matsakis
dcce320a88 bump version number to 0.13.1 2017-06-16 15:49:05 -04:00
Niko Matsakis
390125ea11 update RELEASES.md 2017-06-16 15:47:18 -04:00