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By Viksto
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2. Lex program that detects statement type i.e. Simple or Compound

By Viksto
Lex program that detects statement type i.e. Simple or Compound Note: Only AND | OR | BUT conjunctions are supported. Program: % option noyywrap %{ char test = 's' ; %} %% ( "" [ aA ][ nN ][ dD ] "" )|( "" [ oO ][ rR ] "" )|( "" [ bB ][ uU ][ tT ] "" ) { test = 'c' ;} . {;} \ n return 0 ; %% main () { yylex (); if ( test == 's' ) printf ( "\n Its a simple sentence" ); else if ( test == 'c' ) printf ( "\n This is compound sentence" ); }
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Selenium + Python + UnexpectedAlertPresentException: Dealing with annoying alerts

By Viksto
Handling  UnexpectedAlertPresentException   Alerts who hates them? I Do!  Who doesn't hate an annoying alert causing your tests / scraping job to fail? I must say they are pretty much on point on the Unexpected part!  Fortunately, there are easy ways to mitigate the issue. 1. Disable alerts completely: driver . execute_script( 'window.alert = function(){};' ); execute this script just before where you anticipate the alert and you're golden. 2. You want to see the alert text but not disturb the execution flow. driver . execute_script( 'window.alert = console.info;' ); Now the alerts have been redirected to the console and you don't have to worry about them. (Unless you have to - then you'd have to monitor the console) 3. You know exactly when it comes and want to accept the alert and move on. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 from selenium import webdriver from selenium.webdriver.s...
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4. Lex and Yacc Program to detect errors in a 'C' Language Program

By Viksto
Lex and Yacc Program to detect errors in a 'C' Language Program   Lex Code : %{ #include"y.tab.h" #include<stdio.h> int LineNo = 1 ; %} identifier [ a - zA - Z ][ _a - zA - Z0 - 9 ]* number [ 0 - 9 ]+|([ 0 - 9 ]*\.[ 0 - 9 ]+) %% main \(\) return MAIN ; if return IF ; else return ELSE ; while return WHILE ; int | char | flaot return TYPE ; { identifier } return VAR ; { number } return NUM ; \> | \< | \<= | \>= | == return RELOP ; [\ t ] ; [\ n ] LineNo ++; . return yytext [ 0 ]; %% Yacc Code : %{ #include<string.h> #include<stdio.h> extern int LineNo ; int errno = 0 ; %} % token NUM VAR RELOP % token MAIN IF ELSE WHILE TYPE % left '-' '+' % left '*' '/' %% PROGRAM : MAIN BLOCK ; BLOCK : '{' CODE '}' ; CODE : BLOCK | STATEMENT CODE | STATEMENT ; STATEMENT : DECST ';' | DECST { printf ( "\nLine number %d...
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