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Merge pull request #480 from Fatsie/liberty_value_expression 

Value of properties can be expression.
This commit is contained in:
Clifford Wolf 2018-01-04 13:30:00 +01:00 committed by GitHub
parent 2d140a44eb 92eb841f0a
commit fefb652d56
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GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 22 additions and 2 deletions
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20
passes/techmap/libparse.cc
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@ -100,9 +100,16 @@ int LibertyParser::lexer(std::string &str)
break;
}
f.unget();
if (str == "+" || str == "-") {
/* Single operator is not an identifier */
// fprintf(stderr, "LEX: char >>%s<<\n", str.c_str());
return str[0];
}
else {
// fprintf(stderr, "LEX: identifier >>%s<<\n", str.c_str());
return 'v';
}
}
if (c == '"') {
str = "";
@ -191,6 +198,19 @@ LibertyAst *LibertyParser::parse()
tok = lexer(ast->value);
if (tok != 'v')
error();
tok = lexer(str);
while (tok == '+' || tok == '-' || tok == '*' || tok == '/') {
ast->value += tok;
tok = lexer(str);
if (tok != 'v')
error();
ast->value += str;
tok = lexer(str);
}
if (tok == ';')
break;
else
error();
continue;
}