Need help printing the identifier lexeme and the integer lexeme. Im trying to print whatver is found is the file with the token like in the picture with other tokens. Can you help me figure out how to print whatever is found that causes the IDENT and INT tokens? The image contains a sequence of programming-related keywords and symbols arranged in a structured format resembling pseudocode or a lexical analysis output. Below is the transcription of the content:```read KEY_READIDENTwhile KEY_WHILEIDENT<= LEQUAL_OPINT_LITdo KEY_DO{ LEFT_CBRACEwrite KEY_WRITEIDENTIDENT== ASSIGN_OPIDENT+ ADD_OPINT_LIT} RIGHT_CBRACE```### Explanation:- **Keywords**: `KEY_READ`, `KEY_WHILE`, `KEY_DO`, `KEY_WRITE`, represent commands or actions in the pseudocode.- **Identifiers**: `IDENT` placeholders likely represent variable names or other identifiers.- **Operators**: - `<= LEQUAL_OP` refers to less than or equal to. - `== ASSIGN_OP` is shown where a value is assigned or checked for equality. - `+ ADD_OP` represents addition.- **Braces**: `{ LEFT_CBRACE` and `} RIGHT_CBRACE` indicate the start and end of a block of code.- **Literal**: `INT_LIT` stands for an integer literal.The code seems to be a simple loop structure in pseudocode, symbolizing reading, writing, comparing, and performing arithmetic operations within a control structure.

Algorithm:Read tokens from an input file.For each token:a. Check if it's an identifier (IDENT) by…

Answered: Need help printing the identifier…

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Need help printing the identifier lexeme and the integer lexeme. Im trying to print whatver is found is the file with the token like in the picture with other tokens. Can you help me figure out how to print whatever is found that causes the IDENT and INT tokens?

The image contains a sequence of programming-related keywords and symbols arranged in a structured format resembling pseudocode or a lexical analysis output. Below is the transcription of the content:

```
read KEY_READ
IDENT
while KEY_WHILE
IDENT
<= LEQUAL_OP
INT_LIT
do KEY_DO
{ LEFT_CBRACE
write KEY_WRITE
IDENT
IDENT
== ASSIGN_OP
IDENT
+ ADD_OP
INT_LIT
} RIGHT_CBRACE
```

### Explanation:
- **Keywords**: `KEY_READ`, `KEY_WHILE`, `KEY_DO`, `KEY_WRITE`, represent commands or actions in the pseudocode.
- **Identifiers**: `IDENT` placeholders likely represent variable names or other identifiers.
- **Operators**:
- `<= LEQUAL_OP` refers to less than or equal to.
- `== ASSIGN_OP` is shown where a value is assigned or checked for equality.
- `+ ADD_OP` represents addition.
- **Braces**: `{ LEFT_CBRACE` and `} RIGHT_CBRACE` indicate the start and end of a block of code.
- **Literal**: `INT_LIT` stands for an integer literal.

The code seems to be a simple loop structure in pseudocode, symbolizing reading, writing, comparing, and performing arithmetic operations within a control structure.

Expert Solution

Step 1: Algorithm of the program:

Algorithm:

Read tokens from an input file.
For each token:
a. Check if it's an identifier (IDENT) by testing if it contains only alphabetic characters.
b. If it's an identifier, classify it as "IDENT."
c. Check if it's an integer (INT) by attempting to convert it to an integer.
d. If it's an integer, classify it as "INT."
e. Print the type and lexeme of the token.

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