suraj

===== Page 6 ===== Q1. Design a LEX Code to count the number of lines, space, tab-meta character, and rest of characters in each Input pattern. Solution: % { #include<stdio.h> int line = 0 , space = 0 , tab = 0 , meta = 0 , other = 0; % } %% "\n"    {line++;} " "    {space++;} "\t"    {tab++;} [\^\$\%\*\+\^\&\()\{}\}[]\v\"] {meta++;} .    {other++;} %% int main(){     yylex();     printf("Line:%d\n",line);     printf("Space:%d\n",space);     printf("Tab:%d\n",tab);     printf("Meta:%d\n",meta);     printf("Other:%d\n",other);     return 0; } int yywrap(){     return 1; } Output: int main(){     cout << "hello"; } Line:3 Space:3 Tab:1 Meta:7 Other:18 ===== Page 7 ===== Q2. Design a LEX Code to identify and print valid Identifier of C/C++ in given Input pattern. Solution: % {     #include<stdio.h> % } %% int|float|return|void|if|...