Lex is a computer program that generates lexical analyzers and was written by Mike Lesk and Eric Schmidt. Lex reads an input stream specifying the lexical analyzer and outputs source code implementing the lexer in the C programming language.
Let’s the how to count the number of lines, spaces and tabs using Lex.
Input: Geeks for Geeks gfg gfg Output: No. of lines=2 No. of spaces=3 No. of tabs=1 No. of other characters=19 Input: Hello How are you? Output: No. of lines=2 No. of spaces=4 No. of tabs=1 No. of other characters=15
Below is the implementation:
- Lex program to take input from file and remove multiple spaces, lines and tabs
- Lex Program to print the total characters, white spaces, tabs in the given input file
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- LEX program to count the number of vowels and consonants in a given string
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- Lex program to count the frequency of the given word in a file
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