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Changes for bison < 3.6

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Includes fix for double quoted tokens in syntax errors.
This commit is contained in:
Krystine Sherwin 2025-06-25 10:15:51 +12:00
parent fd463f9597
commit 675a5744fa
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3 changed files with 11 additions and 4 deletions
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2
frontends/verilog/verilog_lexer.h
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@ -25,7 +25,7 @@ namespace VERILOG_FRONTEND {
// get rid of override virtual function warning
using FlexLexer::yylex;
parser::symbol_type terminate() {
return parser::make_FRONTEND_VERILOG_YYEOF(out_loc);
return parser::symbol_type(0, std::move(out_loc));
}
private:
std::shared_ptr<std::string> current_filename;

2
frontends/verilog/verilog_lexer.l
View file

@ -149,7 +149,7 @@ parser::symbol_type char_tok(char c, parser::location_type loc) {
case 'p': return parser::make_TOK_p(loc);
case 'x': return parser::make_TOK_x(loc);
case 'z': return parser::make_TOK_z(loc);
case 0: return parser::make_FRONTEND_VERILOG_YYEOF(loc);
case 0: return parser::symbol_type(0, std::move(loc));
default:
return parser::make_ch_t(c, loc);
}

11
frontends/verilog/verilog_parser.y
View file

@ -428,7 +428,14 @@
void frontend_verilog_yy::parser::error(const frontend_verilog_yy::parser::location_type& loc, const std::string& msg)
{
err_at_loc(loc, "%s", msg.c_str());
std::string new_msg(msg);
size_t pos = new_msg.find("\"'");
if (pos != std::string::npos)
new_msg.replace(pos, 2, "'");
pos = new_msg.find("'\"");
if (pos != std::string::npos)
new_msg.replace(pos, 2, "'");
err_at_loc(loc, "%s", new_msg.c_str());
}
// end unqual
}
@ -589,7 +596,7 @@
%precedence OP_CAST
%precedence UNARY_OPS
%define parse.error detailed
%define parse.error verbose
%define parse.lac full
%precedence FAKE_THEN