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Write a lex program to identify negative fraction and function. %{ #include <stdio.h> %} %% -?[0-9]+\.[0-9]+ { printf("Negative Fraction: %s ", yytext); } [a-zA-Z_][a-zA-Z0-9_]*\([^\)]*\) { printf("Function: %s ", yytext); } [ \t ]+ { /* Ignore whitespace */ } . { printf("Unrecognized token: %s ", yytext); } %% int yywrap() { return 1; // Indicate end-of-input } int main() { printf("Enter your input: "); yylex(); // Start the lexer return 0; } code for Write a lex program to identify Pre-processor directive and delimiter. %{ #include <stdio.h> %} %% #(include|define|ifdef|ifndef|endif|else|elif|pragma|undef) { printf("Pre-Processor Directive: %s ", yytext); } [;(){}[\],.] { printf("Delimiter: %s ", yytext); } [ \t ]+ { /* Ignore whitespace */ } . { printf("Unrecognized token: %s ", yytext); } %% int yywrap() { return 1; // Indicate end-of-input } int main() { printf("Enter your input: "); yylex(); // Start the lexer return 0; }

code Here %{ #include <stdio.h> %} %% [0-9]+\.[0-9]+([eE][+-]?[0-9]+)? { printf("Floating-point or Scientific Notation: %s ", yytext); } [0-9]+[eE][+-]?[0-9]+ { printf("Scientific Notation: %s ", yytext); } [0-9]+ { printf("Integer: %s ", yytext); } [ \t ]+ { /* Ignore whitespace */ } . { printf("Unrecognized token: %s ", yytext); } %% int yywrap() { return 1; // Indicate end-of-input } int main() { printf("Enter your input: "); yylex(); // Start the lexer return 0; }

%{ #include <stdio.h> %} %% "+"|"-"|"*"|"/"|"="|"=="|"<"|">"|"<="|">="|"!=" { printf("Operator: %s ", yytext); } "//"[^ ]* { printf("Single-line Comment: %s ", yytext); } "/*"([^*]*|\*+[^*/])*"\*/" { printf("Multi-line Comment: %s ", yytext); } [ \t]+ { /* Ignore spaces and tabs */ } { printf("Newline detected "); } . { printf("Unrecognized token: %s ", yytext); } %% int yywrap() { return 1; // Indicate end-of-input } int main() { printf("Enter your input: "); yylex(); // Start the lexer return 0; }

%{ #include <stdio.h> #include <string.h> void check_keyword(const char *word); %} %% "if" { printf("Keyword: %s ", yytext); } "else" { printf("Keyword: %s ", yytext); } "while" { printf("Keyword: %s ", yytext); } "return" { printf("Keyword: %s ", yytext); } [a-zA-Z_][a-zA-Z0-9_]* { printf("Identifier: %s ", yytext); } [ \t ]+ { /* Ignore whitespace */ } . { printf("Unrecognized token: %s ", yytext); } %% int yywrap() { return 1; // Indicate end-of-input } int main() { printf("Enter your code snippet: "); yylex(); // Start the lexer return 0; }

Hello ওমা গেল

Wish you all the best buddy

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❤

nice \

thanks

Promo_SM 💦

nice

wish you all the bast

Good job 👏👍

Nice

Carry on bro