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Author SHA1 Message Date
Andreas Buhr
c54307b95c update CI from macos-13 to macos-15 
MacOS 13 is retired in github actions, see
https://github.com/actions/runner-images/issues/13046
 2025-12-11 19:32:36 -06:00
Andreas Buhr
5b3f122aa7 use fold expressions in or_parser and seq_parser 2025-12-05 23:48:02 -06:00
Andreas Buhr
6db68bc7f7 add test for constexpr switch_parser 
The test led to the following error before:
github_issues.cpp(522): error C3615: constexpr function
'boost::parser::switch_' cannot result in a constant expression
 2025-11-25 12:02:18 -06:00
Andreas Buhr
00fe33d2f3 add "constexpr" to switch_parser constructor 
so switch(predicate)(valA, parserA)(valB, parserB)
can result in a constexpr object.
 2025-11-25 12:02:18 -06:00
Andreas Buhr
bb183cf5ee Improve error visualization. 
If the parsed string contains tab characters on the failing line,
the underlining in the error message pointed to the wrong position.

This patch adds as many tab characters to the underlining as
there are in the parsed line. So the underlining points to the
correct position.
 2025-11-23 12:14:55 -06:00
Zach Laine
885595f7bd Parse the attribute of quoted_string into a temporary, and assign at the end, 
if successful.  This makes the code well-formed when the attribute type is an
optional.

Addresses PR #290.
 2025-11-15 16:39:34 -06:00
Zach Laine
6826f957a1 Add missing 'else' between two if constexpr cases. 2025-11-15 15:57:05 -06:00
Zach Laine
647cec6683 Address similar concern to the one about closures with move-only callables, 
but this time for adaptors.
boost-1.90.0 boost-1.90.0.beta1 		2025-10-31 17:30:34 -05:00
Zach Laine
c2ddd6e116 Fix ill-formedness when using range_adaptor_closure with GCC14. 2025-10-31 17:22:36 -05:00
Andreas Buhr
f7246de9db Do not call skip parser if we are already in failed state in seq_parser 2025-10-31 15:41:26 -05:00
Andreas Buhr
703a8afafe Fix error in drone CI 
error: call to implicitly-deleted copy constructor of [snip]
constexpr closure(F f) : f_(f) {}
 2025-10-31 15:39:46 -05:00
Zach Laine
0eacce6080 Add special-casing of nope attributes in seq_parser, so that seq_parser does 
not assign over valid values in a sequence's attribute after successfully
parsing a subsquent nope-attributes parser.

Test cases by Andreas Buhr.

Fixes #279
Fixes #285
 2025-10-31 15:36:22 -05:00
Zach Laine
5e61ba4e9e Fix C++17 builds. 2025-10-31 14:25:38 -05:00
Zach Laine
dc6144eeb4 Correct tuple/struct confusion in the logic of the if constexpr chain in 
perm_parser.

Test case by Andreas Buhr.

Fixes #268.
 2025-10-31 12:37:40 -05:00
Zach Laine
d873d7ea80 Provide failover empty symbol table tries for use inside of skippers, since 
nothing prevents using a symbol_parser in a skipper, and the previous commit
introduced nullptr skipper data tables in some cases.

Related to #245
 2025-10-13 18:43:08 -05:00
Zach Laine
1f5303c756 When creating the context object in detail::skip(), don't create empty structs 
for symbol table tries, since they are never used.

Fixes #245
 2025-10-13 18:19:04 -05:00
Zach Laine
41e891dc95 In opt_parser, don't forget to clear the attribute if the subparser fails. 
Fixes #279
 2025-10-13 17:46:27 -05:00
Zach Laine
159472ac6e Change moves to forwards where appropriate. 
Addresses the same issues as PR #276.
 2025-10-12 21:45:46 -05:00
Andreas Buhr
bfa3e33372 Reduce compilation time by using SkipParser when determining attribute type. 
When using a large parser, the whole tree of parsers in instantiated with the
skip (whitespace) parser used. Then, it was instantiated again without a skip
parser, just to determine the attribute type.
This patch changes the code so the attribute type is determined *with* the
skip parser. That way, the number of template instantiations
required are halved for some use cases.

With gcc 14.2, the instantiations without the skip parser even ended up in the
binary. In that case, this patch reduces binary size.
This is most likely a compiler bug, as the usage is in decltype().
 2025-10-12 21:31:32 -05:00
Andreas Buhr
8d7a64f7fe Performance improvement: Do not copy use_parser into lambda 2025-10-12 21:16:48 -05:00
Andreas Buhr
8c23054e07 Fix bug that ASCII code for z/Z was noch included in case_fold fast-path 2025-10-12 21:15:37 -05:00
Andreas Buhr
11a5d9a872 Add fast-path for lower case ASCII letters in case_fold 
This improved the speed of my parser by approximately 20%
 2025-10-12 21:15:37 -05:00
Andreas Buhr
d241bd7853 Make "transform" constexpr 2025-10-12 21:15:14 -05:00
Zach Laine
086241cbd9 Correct a munged bit of doc text. 2025-10-12 21:04:26 -05:00
ivanpanch
e3a3cc8bf2 Update rationale.qbk 2025-10-12 21:00:47 -05:00
ivanpanch
f789199743 Update parser_reference.xml 2025-10-12 21:00:47 -05:00
ivanpanch
f20c4cfb02 Update parser.hpp 2025-10-12 21:00:47 -05:00
ivanpanch
fcbc53ddce Update parser.hpp 2025-10-12 21:00:47 -05:00
ivanpanch
fed0a883ad Update error_handling_fwd.hpp 2025-10-12 21:00:47 -05:00
ivanpanch
bfc61fa963 Update config.hpp 2025-10-12 21:00:47 -05:00
ivanpanch
68c306bf66 Update json.cpp 2025-10-12 21:00:47 -05:00
ivanpanch
d5d080b9f2 Update tutorial.qbk 2025-10-12 21:00:47 -05:00
ivanpanch
03341ba32d Update tutorial.qbk 2025-10-12 21:00:47 -05:00
ivanpanch
7e69b27d7c Update tutorial.qbk 2025-10-12 21:00:47 -05:00
ivanpanch
17d76bc158 Update tutorial.qbk 2025-10-12 21:00:47 -05:00
ivanpanch
050b9ba800 Update tutorial.qbk 2025-10-12 21:00:47 -05:00
ivanpanch
125f12407b Update tables.qbk 2025-10-12 21:00:47 -05:00
Andreas Buhr
e4ba7c7a17 Remove g++9 github CI configuration 
Because it runs on ubuntu 20.04 and github does
not offer these runners anymore.
 2025-10-12 20:59:26 -05:00
Zach Laine
9a138a20f6 Correct the claim in the docs that if_(c)[p] has attribute type 
optional<ATTR(p)>; it actually has attribute type ATTR(p).

Fixes #278.
 2025-10-12 20:40:55 -05:00
Zach Laine
c32d594d64 Eliminate double-instantiation of context templates (due to on a difference 
between a nope and nope const GlobalState template arg) by using nope const by
default.

Fixes #250.
 2025-10-12 20:00:05 -05:00
Zach Laine
c674e94c3d Don't reuse the attribute-generating path in rule_parser's out-param overload 
of call.  Doing so was wiping out previous partial results, in cases like foo
>> bar, where foo produces a T, and bar is a rule that produces vector<T>.

Fixes #248.
boost-1.89.0 		2025-07-27 17:50:38 -05:00
Zach Laine
84ee288b02 Attempt to fix odd error in happy path of code submitted with issue 223. 2025-07-26 21:13:33 -05:00
Zach Laine
39faa9ddbe Pass the sentinel type as a template parameter to the iterator template in 
project_view, as a workaround to the presence/absence of a disambiguating
template keyword in iterator's implementation.  Neither adding it nor temoving
it works for all builds.  Also, re-enable the C++17 MSVC 2022 Github build.

Fixes #252.
 2025-07-26 21:12:37 -05:00
Zach Laine
b2927abc6c Disable C++17 on MSVC 2022 in Github CI. 2025-07-26 20:17:56 -05:00
Zach Laine
5d6d2f7b84 Add missing special case for parsing a sequence of optional<T>s, writing the 
results into a sequence container of Ts.

Fixes #223.
 2025-07-26 20:15:15 -05:00
Zach Laine
fd6c56df1b Publicize project_view::{interator,sentinel} in attempt to fix VS 2022 build. 2025-07-13 15:56:35 -05:00
Zach Laine
af41e6a7c2 Add missing template keyword disambiguator in attempt to fix VS 2022 build. 2025-07-13 15:34:21 -05:00
Zach Laine
0b93a586f1 Use an R-string instead of using so many backslashes in the quoted string 
examples.

Fixes #239.
 2025-07-12 16:08:53 -05:00
Zach Laine
ed9a06123b Comment out unused dont_assign param in second overload defined by 
BOOST_PARSER_DEFINE_IMPL.

Fixes #237.
 2025-07-12 15:15:52 -05:00
Zach Laine
8ff46f394a Spelling corrections in tutorial. 
Fixes #238.
 2025-07-12 15:13:20 -05:00