usr.bin/sdiff/sdiff.c

70 static size_t file1ln, file2ln;	/* line number of file1 and file2 */
119 	"usage: sdiff [-abdilstW] [-I regexp] [-o outfile] [-w width] file1 file2\n",
121 	"-o OUTFILE, --output=OUTFILE: interactively merge file1 and file2 into outfile.",
126 	"\t-a, --text: treat file1 and file2 as text files.",
210 	FILE *diffpipe, *file1, *file2;
227 	 * file1, and file2 won't have arguments so doubling them will
338 	 * Create temporary files for diff and sdiff to share if file1
346 	/* file1 and file2 are the same, so copy to same temp file. */
350 	/* Copy file1 and file2 into separate temp files. */
358 	if ((file1 = fopen(filename1, "r")) == NULL)
362 	if (!istextfile(file1) || !istextfile(file2)) {
363 		ret = bindiff(file1, filename1, file2, filename2);
408 	while (parsecmd(diffpipe, file1, file2) != EOF)
420 		while ((s1 = xfgets(file1)))
424 			s1 = xfgets(file1);
431 	fclose(file1);
707  * Parse ed commands from diffpipe and print lines from file1 (lines
712 parsecmd(FILE *diffpipe, FILE *file1, FILE *file2)
732 		errx(2, "file1 start is %s: %s", errstr, line);
734 	/* A range is specified for file1. */
744 			errx(2, "file1 end is %s: %s", errstr, line);
746 			errx(2, "invalid line range in file1: %s", line);
785 			errx(2, "append cannot have a file1 range: %s",
788 			errx(2, "file1 line range too high: %s", line);
805 	 * Continue reading file1 and file2 until we reach line numbers
812 		if (!(s1 = xfgets(file1)))
813 			errx(2, "file1 shorter than expected");
838 		if (!(s = xfgets(file1)))
839 			errx(2, "file1 shorter than expected");
866 		printc(file1, file1end, file2, file2end);
870 		printd(file1, file1end);
1066 printc(FILE *file1, size_t file1end, FILE *file2, size_t file2end)
1080 		if (!(line1 = xfgets(file1)))
1081 			errx(2, "error reading file1 in delete in change");
1139 printd(FILE *file1, size_t file1end)
1145 		if (!(line1 = xfgets(file1)))
1146 			errx(2, "file1 ended early in delete");
1175 	    "usage: sdiff [-abdilstHW] [-I regexp] [-o outfile] [-w width] file1"