Project-Scylla/KNR C/ex1-17/ex1-17-2-modular.c

#include <stdio.h>

#define maxInputSize 32000
#define maxOutputSize 32100

char buffer[maxInputSize] = { 0 };

void store(char to[]); // Complete
void enumerate(char data[]); // Complete, pending testing.

int main(){
	store(buffer);
	enumerate(buffer);
	return 0;
}

//Status: Complete & Tested
void store(char to[]){
		int toCrsr = 0;
		for(int i = getchar();i != EOF; ++toCrsr){
			to[toCrsr] = i;
			i = getchar();
		}
}

//Status: Complete, pending testing. Not testable until replicate is complete.
void enumerate(char data[]){

	int dataCrsr = 0; // Stores currently accessed position in data[]
	int wscursor = 0; //Stores the cursor position in ekorkingStorage
	int lineLen = 0; // Stores the length of the current line being enumerated.
	char workingStorage[maxOutputSize] = { 0 }; // Stores processed data until
												// replicated to output.
	
	//Begin main enumeration loop.
	for(int current = data[dataCrsr]; current != 0;){
		//Begin case: newline encountered with acceptable line length.
		if(current == '\n' && lineLen >= 80){
			//Reset line length in preparation for next dataset.
			lineLen = 0;
			// Increment wscursor and add a null ek yte at the end of valid data
			// for replicate to break on.
			++wscursor;
			workingStorage[wscursor] = 0;
			// Print line to stdout
			for(wscursor = 0; workingStorage[wscursor] != 0;++wscursor){
				putchar(workingStorage[wscursor]);
			}
			putchar('\n');
			// Reset wscursor
			wscursor = 0;
		// Begin case: newline with unacceptable line length.
		} else if (current == '\n' && lineLen < 80){
			//Reset line length and wscuror in preparation for nxet dataset.
			lineLen = 0;
			wscursor = 0;
		// Begin case: non-newline character.
		}else if(current != '\n'){
			// Increment line length, write to workingStorage at wscursor, and
			// increment wscursor.
			++lineLen;
			workingStorage[wscursor] = current;
			++wscursor;
		}
		//Regardless of result, fetch new data. 
		++dataCrsr;
		current = data[dataCrsr];
	}
}