static enum ParserResult parsePipeline(struct Parser* parser,
struct Pipeline* pipeline) {
pipeline->commands = NULL;
pipeline->numCommands = 0;
pipeline->bang = false;
enum ParserResult result;
struct Token* token = getToken(parser);
if (!token) return PARSER_SYNTAX;
while (token->type == TOKEN && strcmp(token->text, "!") == 0) {
pipeline->bang = !pipeline->bang;
parser->offset++;
token = getToken(parser);
if (!token) return PARSER_SYNTAX;
}
while (true) {
struct SimpleCommand command;
result = parseSimpleCommand(parser, &command);
if (result != PARSER_MATCH) goto fail;
if (!addToArray((void**) &pipeline->commands, &pipeline->numCommands,
&command, sizeof(command))) {
result = PARSER_ERROR;
goto fail;
}
token = getToken(parser);
if (!token) return PARSER_MATCH;
if (token->type != OPERATOR || strcmp(token->text, "|") != 0) {
return PARSER_MATCH;
}
parser->offset++;
token = getToken(parser);
if (!token) {
result = PARSER_SYNTAX;
goto fail;
}
while (token->type == OPERATOR && strcmp(token->text, "\n") == 0) {
parser->offset++;
token = getToken(parser);
if (!token) {
result = PARSER_NEWLINE;
goto fail;
}
}
}
return PARSER_MATCH;
fail:
freePipeline(pipeline);
return result;
}
bool AbstractParser::parseUserCommands(const QString &input)
{
if (tryParseGenericDoorCommand(input))
return false;
if (input.startsWith(prefixChar)) {
auto view = StringView{input}.trim();
if (view.isEmpty() || view.takeFirstLetter() != prefixChar)
sendToUser("Internal error. Sorry.\r\n");
else
parseSpecialCommand(view);
sendPromptToUser();
return false;
}
return parseSimpleCommand(input);
}
