Understand Grammar of C

Understand Grammar of C

As human need a language to communicate with another human. Same in computer Science there is a language that helps to communication between human and computer. Here we are using C Language from many present language of Computer. 

C language and English Language are not different, that means if you want learn English then you should learn first the alphabet or characters used in English, then integrate these alphabets to make form, which in turn are integrated to make sentences and these sentences make paragraphs. Learning C is similar and easy like English.

Therefore we should learn grammar of C instead of straight away learning how to write programs which are following here?

Steps in learning English Language:

ALPHABETS > WORDS > SENTENCES > PARAGRAPH

Steps in Learning C Language

ALPHABETS, DIGITS AND SPECIAL SYMBOLS >CONSTANT ,VARIABLE,KEYWORD > INSTRUCTION > PROGRAM

Character Set of C Programming

Here, character means any digit, alphabet and special symbol that used to make necessary segments of program. Following table are given which express the valid alphabet, digit and special Symbols that allowed by C.

Alphabets	A,B …………………..Y,Z A,b,……………….….y,z
Digit	0,1,2,3,4,5,6,7,8,9
Special Symbols	~ ‘ ! @ # % ^ & * ( ) _ - + = \ | { } [ ] : ;  “  ‘  < >  ,  .  ?  /

Figure1

C’s Character what make

When we combine properly to alphabet, numbers and special symbols then it form constants, variable and keywords. The way alphabets form words in English. Now you think what are constants, variables and keyword?

In passage of text, individual words and punctuation mark are called tokens, similarly in c program the smallest individual units are called C tokens. There are 6 types of token are present in C which are following.