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Add a method to print location.

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This commit is contained in:
Danila Fedorin 2020-09-09 14:41:16 -07:00
parent d5536467f6
commit 2fa2be4b9e
1 changed files with 13 additions and 0 deletions
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13
code/compiler/13/parse_driver.hpp
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@ -59,6 +59,19 @@ struct parse_driver {
if(line > line_offsets.size()) return read_file.size();
return get_index(line+1, 1);
}
void print_highlighted_location(std::ostream& stream, const yy::location& loc) {
size_t print_start = get_index(loc.begin.line, 1);
size_t highlight_start = get_index(loc.begin.line, loc.begin.column);
size_t highlight_end = get_index(loc.end.line, loc.end.column);
size_t print_end = get_line_end(loc.end.line);
const char* content = read_file.c_str();
stream.write(content + print_start, highlight_start - print_start);
stream << "\033[4;31m";
stream.write(content + highlight_start, highlight_end - highlight_start);
stream << "\033[0m";
stream.write(content + highlight_end, print_end - highlight_end);
}
};
#define YY_DECL yy::parser::symbol_type yylex(yyscan_t yyscanner, parse_driver& drv)