Improve input parsing:
Add "-C <column>" and "-d <delims>" options to chop up input lines. Make '#' a comment character, rest of line is ignored. Submitted by: Dmitry Morozovsky <marck@rinet.ru>
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phk
parent
995c93345f
commit
40d4b9bdbe
@ -466,13 +466,14 @@ DumpPlot(void)
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static struct dataset *
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ReadSet(char *n)
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ReadSet(char *n, int column, char *delim)
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{
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FILE *f;
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char buf[BUFSIZ], *p;
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char buf[BUFSIZ], *p, *t;
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struct dataset *s;
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double d;
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int line;
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int i;
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if (n == NULL) {
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f = stdin;
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@ -490,15 +491,20 @@ ReadSet(char *n)
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line = 0;
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while (fgets(buf, sizeof buf, f) != NULL) {
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line++;
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p = strchr(buf, '#');
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if (p != NULL)
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*p = '\0';
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p = buf + strlen(buf) - 1;
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while (p >= buf && isspace(*p)) {
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*p = '\0';
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p--;
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i = strlen(buf);
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if (buf[i-1] == '\n')
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buf[i-1] = '\0';
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for (i = 1, t = strtok(buf, delim);
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t != NULL && *t != '#';
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i++, t = strtok(NULL, delim)) {
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if (i == column)
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break;
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}
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d = strtod(buf, &p);
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if (t == NULL || *t == '#')
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continue;
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d = strtod(t, &p);
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if (p != NULL && *p != '\0')
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err(2, "Invalid data on line %d in %s\n", line, n);
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if (*buf != '\0')
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@ -520,7 +526,7 @@ usage(char const *whine)
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fprintf(stderr, "%s\n", whine);
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fprintf(stderr,
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"Usage: ministat [ -c confidence ] [-ns] [-w width] [file [file ...]]\n");
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"Usage: ministat [-C column] [-c confidence] [-d delimiter(s)] [-ns] [-w width] [file [file ...]]\n");
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fprintf(stderr, "\tconfidence = {");
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for (i = 0; i < NCONF; i++) {
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fprintf(stderr, "%s%g%%",
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@ -528,6 +534,8 @@ usage(char const *whine)
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studentpct[i]);
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}
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fprintf(stderr, "}\n");
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fprintf(stderr, "\t-C : column number to extract (starts and defaults to 1)\n");
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fprintf(stderr, "\t-d : delimiter(s) string, default to \" \\t\"\n");
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fprintf(stderr, "\t-n : print summary statistics only, no graph/test\n");
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fprintf(stderr, "\t-s : print avg/median/stddev bars on separate lines\n");
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fprintf(stderr, "\t-w : width of graph/test output (default 74 or terminal width)\n");
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@ -540,8 +548,10 @@ main(int argc, char **argv)
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struct dataset *ds[7];
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int nds;
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double a;
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char *delim = " \t";
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char *p;
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int c, i, ci;
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int column = 1;
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int flag_s = 0;
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int flag_n = 0;
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int termwidth = 74;
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@ -557,8 +567,15 @@ main(int argc, char **argv)
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}
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ci = -1;
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while ((c = getopt(argc, argv, "c:snw:")) != -1)
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while ((c = getopt(argc, argv, "C:c:d:snw:")) != -1)
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switch (c) {
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case 'C':
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column = strtol(optarg, &p, 10);
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if (p != NULL && *p != '\0')
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usage("Invalid column number.");
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if (column <= 0)
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usage("Column number should be positive.");
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break;
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case 'c':
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a = strtod(optarg, &p);
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if (p != NULL && *p != '\0')
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@ -569,6 +586,11 @@ main(int argc, char **argv)
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if (ci == -1)
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usage("No support for confidence level");
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break;
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case 'd':
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if (*optarg == '\0')
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usage("Can't use empty delimiter string");
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delim = optarg;
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break;
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case 'n':
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flag_n = 1;
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break;
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@ -592,14 +614,14 @@ main(int argc, char **argv)
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argv += optind;
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if (argc == 0) {
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ds[0] = ReadSet("-");
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ds[0] = ReadSet("-", column, delim);
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nds = 1;
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} else {
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if (argc > (MAX_DS - 1))
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usage("Too many datasets.");
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nds = argc;
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for (i = 0; i < nds; i++)
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ds[i] = ReadSet(argv[i]);
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ds[i] = ReadSet(argv[i], column, delim);
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}
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for (i = 0; i < nds; i++)
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@ -466,13 +466,14 @@ DumpPlot(void)
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static struct dataset *
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ReadSet(char *n)
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ReadSet(char *n, int column, char *delim)
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{
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FILE *f;
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char buf[BUFSIZ], *p;
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char buf[BUFSIZ], *p, *t;
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struct dataset *s;
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double d;
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int line;
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int i;
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if (n == NULL) {
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f = stdin;
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@ -490,15 +491,20 @@ ReadSet(char *n)
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line = 0;
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while (fgets(buf, sizeof buf, f) != NULL) {
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line++;
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p = strchr(buf, '#');
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if (p != NULL)
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*p = '\0';
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p = buf + strlen(buf) - 1;
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while (p >= buf && isspace(*p)) {
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*p = '\0';
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p--;
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i = strlen(buf);
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if (buf[i-1] == '\n')
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buf[i-1] = '\0';
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for (i = 1, t = strtok(buf, delim);
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t != NULL && *t != '#';
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i++, t = strtok(NULL, delim)) {
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if (i == column)
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break;
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}
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d = strtod(buf, &p);
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if (t == NULL || *t == '#')
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continue;
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d = strtod(t, &p);
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if (p != NULL && *p != '\0')
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err(2, "Invalid data on line %d in %s\n", line, n);
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if (*buf != '\0')
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@ -520,7 +526,7 @@ usage(char const *whine)
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fprintf(stderr, "%s\n", whine);
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fprintf(stderr,
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"Usage: ministat [ -c confidence ] [-ns] [-w width] [file [file ...]]\n");
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"Usage: ministat [-C column] [-c confidence] [-d delimiter(s)] [-ns] [-w width] [file [file ...]]\n");
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fprintf(stderr, "\tconfidence = {");
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for (i = 0; i < NCONF; i++) {
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fprintf(stderr, "%s%g%%",
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@ -528,6 +534,8 @@ usage(char const *whine)
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studentpct[i]);
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}
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fprintf(stderr, "}\n");
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fprintf(stderr, "\t-C : column number to extract (starts and defaults to 1)\n");
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fprintf(stderr, "\t-d : delimiter(s) string, default to \" \\t\"\n");
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fprintf(stderr, "\t-n : print summary statistics only, no graph/test\n");
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fprintf(stderr, "\t-s : print avg/median/stddev bars on separate lines\n");
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fprintf(stderr, "\t-w : width of graph/test output (default 74 or terminal width)\n");
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@ -540,8 +548,10 @@ main(int argc, char **argv)
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struct dataset *ds[7];
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int nds;
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double a;
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char *delim = " \t";
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char *p;
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int c, i, ci;
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int column = 1;
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int flag_s = 0;
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int flag_n = 0;
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int termwidth = 74;
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@ -557,8 +567,15 @@ main(int argc, char **argv)
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}
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ci = -1;
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while ((c = getopt(argc, argv, "c:snw:")) != -1)
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while ((c = getopt(argc, argv, "C:c:d:snw:")) != -1)
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switch (c) {
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case 'C':
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column = strtol(optarg, &p, 10);
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if (p != NULL && *p != '\0')
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usage("Invalid column number.");
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if (column <= 0)
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usage("Column number should be positive.");
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break;
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case 'c':
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a = strtod(optarg, &p);
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if (p != NULL && *p != '\0')
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@ -569,6 +586,11 @@ main(int argc, char **argv)
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if (ci == -1)
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usage("No support for confidence level");
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break;
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case 'd':
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if (*optarg == '\0')
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usage("Can't use empty delimiter string");
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delim = optarg;
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break;
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case 'n':
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flag_n = 1;
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break;
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@ -592,14 +614,14 @@ main(int argc, char **argv)
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argv += optind;
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if (argc == 0) {
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ds[0] = ReadSet("-");
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ds[0] = ReadSet("-", column, delim);
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nds = 1;
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} else {
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if (argc > (MAX_DS - 1))
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usage("Too many datasets.");
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nds = argc;
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for (i = 0; i < nds; i++)
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ds[i] = ReadSet(argv[i]);
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ds[i] = ReadSet(argv[i], column, delim);
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}
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for (i = 0; i < nds; i++)
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