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This commit is contained in:
Niels Moseley
parent
9d9cc8a314
commit
1f7f54e68e
1 changed files with 78 additions and 78 deletions
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@ -87,12 +87,12 @@ int LibertyParser::lexer(std::string &str)
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{
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int c;
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// eat whitespace
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// eat whitespace
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do {
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c = f.get();
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} while (c == ' ' || c == '\t' || c == '\r');
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// search for identifiers, numbers, plus or minus.
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// search for identifiers, numbers, plus or minus.
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if (('a' <= c && c <= 'z') || ('A' <= c && c <= 'Z') || ('0' <= c && c <= '9') || c == '_' || c == '-' || c == '+' || c == '.') {
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str = c;
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while (1) {
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@ -114,8 +114,8 @@ int LibertyParser::lexer(std::string &str)
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}
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}
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// if it wasn't an identifer, number of array range,
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// maybe it's a string?
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// if it wasn't an identifer, number of array range,
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// maybe it's a string?
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if (c == '"') {
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str = "";
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while (1) {
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@ -130,7 +130,7 @@ int LibertyParser::lexer(std::string &str)
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return 'v';
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}
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// if it wasn't a string, perhaps it's a comment or a forward slash?
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// if it wasn't a string, perhaps it's a comment or a forward slash?
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if (c == '/') {
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c = f.get();
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if (c == '*') { // start of '/*' block comment
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@ -153,7 +153,7 @@ int LibertyParser::lexer(std::string &str)
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return '/'; // a single '/' charater.
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}
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// check for a backslash
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// check for a backslash
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if (c == '\\') {
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c = f.get();
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if (c == '\r')
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@ -164,14 +164,14 @@ int LibertyParser::lexer(std::string &str)
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return '\\';
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}
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// check for a new line
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// check for a new line
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if (c == '\n') {
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line++;
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return 'n';
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}
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// anything else, such as ';' will get passed
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// through as literal items.
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// anything else, such as ';' will get passed
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// through as literal items.
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// if (c >= 32 && c < 255)
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// fprintf(stderr, "LEX: char >>%c<<\n", c);
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@ -202,8 +202,8 @@ LibertyAst *LibertyParser::parse()
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{
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tok = lexer(str);
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// allow both ';' and new lines to
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// terminate a statement.
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// allow both ';' and new lines to
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// terminate a statement.
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if ((tok == ';') || (tok == 'n'))
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break;
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@ -220,11 +220,11 @@ LibertyAst *LibertyParser::parse()
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ast->value += str;
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tok = lexer(str);
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}
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// In a liberty file, all key : value pairs should end in ';'
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// However, there are some liberty files in the wild that
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// just have a newline. We'll be kind and accept a newline
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// instead of the ';' too..
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// In a liberty file, all key : value pairs should end in ';'
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// However, there are some liberty files in the wild that
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// just have a newline. We'll be kind and accept a newline
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// instead of the ';' too..
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if ((tok == ';') || (tok == 'n'))
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break;
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else
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@ -240,48 +240,48 @@ LibertyAst *LibertyParser::parse()
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continue;
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if (tok == ')')
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break;
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// FIXME: the AST needs to be extended to store
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// these vector ranges.
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if (tok == '[')
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{
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// parse vector range [A] or [A:B]
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std::string arg;
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tok = lexer(arg);
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if (tok != 'v')
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{
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// expected a vector array index
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error("Expected a number.");
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}
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else
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{
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// fixme: check for number A
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}
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tok = lexer(arg);
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// optionally check for : in case of [A:B]
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// if it isn't we just expect ']'
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// as we have [A]
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if (tok == ':')
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{
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tok = lexer(arg);
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if (tok != 'v')
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{
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// expected a vector array index
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error("Expected a number.");
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}
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else
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{
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// fixme: check for number B
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tok = lexer(arg);
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}
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}
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// expect a closing bracket of array range
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if (tok != ']')
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{
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error("Expected ']' on array range.");
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}
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continue;
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}
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// FIXME: the AST needs to be extended to store
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// these vector ranges.
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if (tok == '[')
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{
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// parse vector range [A] or [A:B]
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std::string arg;
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tok = lexer(arg);
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if (tok != 'v')
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{
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// expected a vector array index
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error("Expected a number.");
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}
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else
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{
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// fixme: check for number A
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}
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tok = lexer(arg);
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// optionally check for : in case of [A:B]
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// if it isn't we just expect ']'
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// as we have [A]
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if (tok == ':')
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{
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tok = lexer(arg);
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if (tok != 'v')
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{
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// expected a vector array index
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error("Expected a number.");
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}
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else
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{
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// fixme: check for number B
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tok = lexer(arg);
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}
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}
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// expect a closing bracket of array range
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if (tok != ']')
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{
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error("Expected ']' on array range.");
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}
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continue;
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}
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if (tok != 'v')
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error();
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ast->args.push_back(arg);
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@ -314,10 +314,10 @@ void LibertyParser::error()
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void LibertyParser::error(const std::string &str)
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{
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std::stringstream ss;
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ss << "Syntax error in liberty file on line " << line << ".\n";
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ss << " " << str << "\n";
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log_error("%s", ss.str().c_str());
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std::stringstream ss;
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ss << "Syntax error in liberty file on line " << line << ".\n";
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ss << " " << str << "\n";
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log_error("%s", ss.str().c_str());
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}
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#else
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@ -330,32 +330,32 @@ void LibertyParser::error()
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void LibertyParser::error(const std::string &str)
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{
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std::stringstream ss;
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ss << "Syntax error in liberty file on line " << line << ".\n";
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ss << " " << str << "\n";
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printf("%s", ss.str().c_str());
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exit(1);
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std::stringstream ss;
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ss << "Syntax error in liberty file on line " << line << ".\n";
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ss << " " << str << "\n";
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printf("%s", ss.str().c_str());
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exit(1);
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}
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/**** BEGIN: http://svn.clifford.at/tools/trunk/examples/check.h ****/
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#define CHECK_NV(result, check) \
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do { \
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auto _R = (result); \
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if (!(_R check)) { \
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fprintf(stderr, "Error from '%s' (%ld %s) in %s:%d.\n", \
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#result, (long int)_R, #check, __FILE__, __LINE__); \
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abort(); \
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} \
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auto _R = (result); \
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if (!(_R check)) { \
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fprintf(stderr, "Error from '%s' (%ld %s) in %s:%d.\n", \
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#result, (long int)_R, #check, __FILE__, __LINE__); \
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abort(); \
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} \
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} while(0)
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#define CHECK_COND(result) \
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do { \
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if (!(result)) { \
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fprintf(stderr, "Error from '%s' in %s:%d.\n", \
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#result, __FILE__, __LINE__); \
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abort(); \
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} \
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if (!(result)) { \
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fprintf(stderr, "Error from '%s' in %s:%d.\n", \
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#result, __FILE__, __LINE__); \
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abort(); \
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} \
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} while(0)
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/**** END: http://svn.clifford.at/tools/trunk/examples/check.h ****/
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