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c++: provide yy::parser::symbol_type::name

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* data/skeletons/c++.m4 (yy::parser::basic_symbol::name): New.
* data/skeletons/lalr1.cc (yy_print_): Use it.
* doc/bison.texi: Document.
* tests/c++.at: Check.
This commit is contained in:
Akim Demaille
2020-05-10 09:58:30 +02:00
parent 6bb37dbe27
commit bf98d94f4f
5 changed files with 38 additions and 3 deletions
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5
data/skeletons/lalr1.cc
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@@ -256,8 +256,7 @@ m4_define([b4_shared_declarations],
[verbose],
[[ /// The user-facing name of the symbol whose (internal) number is
/// YYSYMBOL. No bounds checking.
static std::string symbol_name (symbol_kind_type yysymbol);
]])[
static std::string symbol_name (symbol_kind_type yysymbol);]])[
]b4_token_constructor_define[
]b4_parse_error_bmatch([custom\|detailed\|verbose], [[
@@ -822,7 +821,7 @@ m4_if(b4_prefix, [yy], [],
{
symbol_kind_type yykind = yysym.kind ();
yyo << (yykind < YYNTOKENS ? "token" : "nterm")
<< ' ' << symbol_name (yykind) << " ("]b4_locations_if([
<< ' ' << yysym.name () << " ("]b4_locations_if([
<< yysym.location << ": "])[;
]b4_symbol_actions([printer])[
yyo << ')';