design and detailing of bow string girder bridge ....etc

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lex program to recognise and count number of identifiers in a given file ? ....etc

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ha hellpggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggg
....etc

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Algorithm:-

begin
if string=*000*
then
printf “Algorithm:-

string accepted”
else
printf “string rejected”
end

Program:-

LEX program to recognize a string with three consecutive 0’s

%%
*000* { printf(“string accepted”);}
* { printf(“string rejected”);}

%%

main()
{
yylex();
}\
int yywrap()
{
return 1;
}
....etc

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I need this program badly.This program is related with my class. So i need this quickly. This is related with compiler subjuct. ....etc

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Base64 uses a 65 character subset of US-ASCII, allowing 6 bits for each character so the character m with a Base64 value of 38, when represented in binary form, is 100110. When a text string, letâ„¢s say mne is encoded this is what happens : The text string is converted into its US-ASCII value. (In US-ASCII each character is assigned a value) ....etc

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Base64 uses a 65 character subset of US-ASCII, allowing 6 bits for each character so the character m with a Base64 value of 38, when represented in binary form, is 100110. When a text string, let's say mne is encoded this is what happens : The text string is converted into its US-ASCII value. (In US-ASCII each character is assigned a value)

Download Full Seminar Report
Downlaod

Mirror ....etc

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Objective
Program in “C/Lex” to check whether Identifier is valid or not
#include
#include
void main()
{
clrscr();
int i=0,j=0,flag=1;
char ch,ip;
while((ch=getchar())!='\n')
{
ip=ch;
i++;
}
ip='*';
if((ip>='a'&&ip<='z')||(ip>='A'&&ip<='Z'))
{
j++;
while(ip!='*')
{
if((ip>='a'&&ip<='z')||(ip>='A'&&ip<='Z')||(ip>='0'&&ip<='9')||ip=='_')
{
j++;
}
else
{
flag=0;
goto loop;
}
}
}
else
flag=0;
lo ....etc

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Objective
Program in “LEX” to count the verb in a given line of text.

%{
%}
%%
isI
areI
amI printf(%s is verb,yytext );
+ {printf(%s is not a verb,yytext);}
.I\n {ECHO;}
%%
main()
{
yylex();
}
....etc

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Prepared by:
Diwakar Pandey




Introduction


String Matching:
string matching is an algorithm that try to find a string of length m(called pattern)
from a string of length n (called text).
Text :- Text is an array T of length n.

Pattern:- Pattern is an array P of length m , where m≤n.

Finite alphabet :- It is a finite set of characters . The elements are taken from T and P.It is denoted by Σ.
Eg:- Σ = {0,1}
Σ = {a ....etc

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