C++ (Cpp) parse_Statement示例

示例#1

文件： pl0-ll-parser01.c 项目： simozono/2016-pl0dash

void parse_StatementList() {
  /* <StatementList> -> <Statement> <StatementList_dash> */
  printf("Enter StatementList\n");
  parse_Statement();
  parse_StatementList_dash();
  printf("Exit  StatementList\n");
}

示例#2

文件： pl0-ll-parser02.c 项目： ryo33/pl0dash

void parse_StatementList_dash() {
  printf("Enter StatementList_dash\n");
  if (nextToken == T_SEMIC) {
    nextToken = getToken();
    parse_Statement();
    parse_StatementList_dash();
  }
}

示例#3

文件： pl0-ll-parser01.c 项目： simozono/2016-pl0dash

void parse_Block() {
  /* <Block> -> <ConstDeclList> <VarDeclList> <FuncDeclList> <Statement> */
  printf("Enter Block\n");
  parse_ConstDeclList();
  parse_VarDeclList();
  parse_FuncDeclList();
  parse_Statement();
  printf("Exit  Block\n");
}

示例#4

文件： pl0-ll-parser01.c 项目： simozono/2016-pl0dash

void parse_StatementList_dash() {
  /* <StatementList_dash> -> T_SEMIC <Statement> <StatementList_dash> | ε */
  printf("Enter StatementList_dash\n");
  if (nextToken == T_SEMIC) {
    nextToken = getToken();
    parse_Statement();
    parse_StatementList_dash();
  }
  printf("Exit  StatementList_dash\n");
}

示例#5

文件： pl0-ll-parser02.c 项目： ryo33/pl0dash

void parse_Statement() {
  printf("Enter Statement\n");
  if (nextToken == T_ID) { /* 代入文 */
    nextToken = getToken();
    if (nextToken != T_COLEQ) pl0parse_error("not :=");
    nextToken = getToken();
    parse_Expression();
  } else if (nextToken == T_BEGIN) { /* begn ～ end */
    nextToken = getToken();
    parse_StatementList();
    if (nextToken != T_END) pl0parse_error("not end");
    nextToken = getToken();
  } else if (nextToken == T_IF) { /* if then */
    nextToken = getToken();
    parse_Condition();
    if (nextToken != T_THEN) pl0parse_error("not then");
    nextToken = getToken();
    parse_Statement();
  } else if (nextToken == T_WHILE)  { /* while do */
    nextToken = getToken();
    parse_Condition();
    if (nextToken != T_DO) pl0parse_error("not do");
    nextToken = getToken();
    parse_Statement();
  } else if (nextToken == T_RETURN) { /* return */
    nextToken = getToken();
    parse_Expression();
  } else if (nextToken == T_WRITE) { /* write */
    nextToken = getToken();
    parse_Expression();
  } else if (nextToken ==  T_WRITELN) { /* writeln */
    /* writeln の処理 */
    nextToken = getToken();
  } else {
  }
}

示例#6

文件： pl0-ll-parser01.c 项目： simozono/2016-pl0dash

void parse_Statement() {
  printf("Enter Statement\n");
  if (nextToken == T_ID) { /* 代入文 */
    nextToken = getToken();
    if (nextToken != T_COLEQ) pl0_error(yytext, line_no, ":=がない");
    nextToken = getToken();
    parse_Expression();
  } else if (nextToken == T_BEGIN) { /* begn ～ end */
    nextToken = getToken();
    parse_StatementList();
    if (nextToken != T_END) pl0_error(yytext, line_no, "endがない");
    nextToken = getToken();
  } else if (nextToken == T_IF) { /* if then */
    nextToken = getToken();
    parse_Condition();
    if (nextToken != T_THEN) pl0_error(yytext, line_no, "thenがない");
    nextToken = getToken();
    parse_Statement();
  } else if (nextToken == T_WHILE)  { /* while do */
    nextToken = getToken();
    parse_Condition();
    if (nextToken != T_DO) pl0_error(yytext, line_no, "doがない");
    nextToken = getToken();
    parse_Statement();
  } else if (nextToken == T_RETURN) { /* return */
    nextToken = getToken();
    parse_Expression();
  } else if (nextToken == T_WRITE) { /* write */
    nextToken = getToken();
    parse_Expression();
  } else if (nextToken ==  T_WRITELN) { /* writeln */
    /* writeln の処理 */
    nextToken = getToken();
  }
  printf("Exit  Statement\n");
}

示例#7

文件： pl0-ll-parser02.c 项目： ryo33/pl0dash

void parse_StatementList() {
  printf("Enter StatementList\n");
  parse_Statement();
  parse_StatementList_dash();
}

示例#8

文件： pl0-ll-parser02.c 项目： ryo33/pl0dash

void parse_Block() {
  printf("Enter Block\n");
  parse_Decl();
  parse_Statement();
}