write_record.c

/************************************************************************************************
 * Filename: Write_Record.c
 * Author  : Peter van der Woude
 * Program : CatView
 * Purpose : Prints a given szRecord (assumes is a szRecord i.e lightcyan on blue)
 * NOTE: This function supersedes the 'professionally written' function write_string()
 * which has a bug that prevents correct printing of Records over 256 characters in length.
 * bug: beginning at letter 256, function begins printing at original position - over original text.
 *************************************************************************************************/

#include "catview.h"
#include "tyac.h"
#include <conio.h>  /* for colours */
#include <string.h> /* for strlen() */

void Write_Record(char *szRecord, int nRow) {
	int nCol = 0;
	int nLetterNum;
	int nRecordLength = strlen(szRecord);
	/* set maximum to 400 letters (5 lines) - any more would suggest a non-catalogue file */
	/* and is therefore the maximum length for any szRecord in CatView */
	nRecordLength = (nRecordLength <= MAX_REC_LENGTH) ? nRecordLength : MAX_REC_LENGTH;

	for (nLetterNum = 0; nLetterNum < nRecordLength; nLetterNum++) {
		switch (*(szRecord + nLetterNum)) {
		case '\n':
			nRow++;
			nCol = 0;
			break;

		case '\t':
			nCol += 4;
			break;

		default: /* just print the character. */
			if (nCol >= 80) {
				nCol = 0;
				nRow++;
			}
			cursor(nRow, nCol);
			write_char(*(szRecord + nLetterNum), LIGHTCYAN, BLUE);
			nCol++;
		}
	}
}