+#include "stdio.h"
+#include "signal.h"
+#include "lrnref"
+
+char last[100];
+char logf[100];
+char subdir[100];
+extern char * ctime();
+
+copy(prompt, fin)
+FILE *fin;
+{
+ FILE *fout, *f;
+ char s[100], t[100], s1[100], *r, *tod;
+ char nm[30];
+ int *p, tv[2];
+ extern int intrpt(), *action();
+ extern char *wordb();
+ int nmatch = 0;
+
+ if (subdir[0]==0)
+ sprintf(subdir, "../../%s", sname);
+ for (;;) {
+ if (pgets(s, prompt, fin) == 0)
+ if (fin == stdin) {
+ /* fprintf(stderr, "Don't type control-D\n"); */
+ /* this didn't work out very well */
+ continue;
+ } else
+ break;
+ trim(s);
+ /* change the sequence %s to lesson directory */
+ /* if needed */
+ for (r = s; *r; r++)
+ if (*r == '%') {
+ sprintf(s1, s, subdir, subdir, subdir);
+ strcpy(s, s1);
+ break;
+ }
+ r = wordb(s, t);
+ p = action(t);
+ if (*p == ONCE) { /* some actions done only once per script */
+ if (wrong) { /* we are on 2nd time */
+ scopy(fin, NULL);
+ continue;
+ }
+ strcpy(s, r);
+ r = wordb(s, t);
+ p = action(t);
+ }
+ if (p == 0) {
+ if (comfile >= 0) {
+ write(comfile, s, strlen(s));
+ write(comfile, "\n", 1);
+ }
+ else {
+ signal(SIGINT, SIG_IGN);
+ status = mysys(s);
+ signal(SIGINT, intrpt);
+ }
+ if (incopy) {
+ fprintf(incopy, "%s\n", s);
+ strcpy(last, s);
+ }
+ continue;
+ }
+ switch (*p) {
+ case READY:
+ if (incopy && r) {
+ fprintf(incopy, "%s\n", r);
+ strcpy(last, r);
+ }
+ return;
+ case PRINT:
+ if (wrong)
+ scopy(fin, NULL); /* don't repeat message */
+ else if (r)
+ list(r);
+ else
+ scopy(fin, stdout);
+ break;
+ case NOP:
+ break;
+ case MATCH:
+ if (nmatch > 0) /* we have already passed */
+ scopy(fin, NULL);
+ else if ((status = strcmp(r, last)) == 0) { /* did we pass this time? */
+ nmatch++;
+ scopy(fin, stdout);
+ } else
+ scopy(fin, NULL);
+ break;
+ case BAD:
+ if (strcmp(r, last) == 0) {
+ scopy(fin, stdout);
+ } else
+ scopy(fin, NULL);
+ break;
+ case SUCCEED:
+ scopy(fin, (status == 0) ? stdout : NULL);
+ break;
+ case FAIL:
+ scopy(fin, (status != 0) ? stdout : NULL);
+ break;
+ case CREATE:
+ fout = fopen(r, "w");
+ scopy(fin, fout);
+ fclose(fout);
+ break;
+ case CMP:
+ status = cmp(r); /* contains two file names */
+ break;
+ case MV:
+ sprintf(nm, "%s/L%s.%s", subdir, todo, r);
+ fcopy(r, nm);
+ break;
+ case USER:
+ case NEXT:
+ more = 1;
+ return;
+ case COPYIN:
+ incopy = fopen(".copy", "w");
+ break;
+ case UNCOPIN:
+ fclose(incopy);
+ incopy = NULL;
+ break;
+ case COPYOUT:
+ maktee();
+ break;
+ case UNCOPOUT:
+ untee();
+ break;
+ case PIPE:
+ comfile = makpipe();
+ break;
+ case UNPIPE:
+ close(comfile);
+ wait(0);
+ comfile = -1;
+ break;
+ case YES:
+ case NO:
+ if (incopy) {
+ fprintf(incopy, "%s\n", s);
+ strcpy(last, s);
+ }
+ return;
+ case WHERE:
+ printf("You are in lesson %s\n", todo);
+ fflush(stdout);
+ break;
+ case BYE:
+ more=0;
+ return;
+ case CHDIR:
+ printf("cd not allowed\n");
+ fflush(stdout);
+ break;
+ case LEARN:
+ printf("You are already in learn.\n");
+ fflush(stdout);
+ break;
+ case LOG:
+ if (!logging)
+ break;
+ if (logf[0] == 0)
+ sprintf(logf, "%s/log/%s", direct, sname);
+ f = fopen( (r? r : logf), "a");
+ if (f == NULL)
+ break;
+ time(tv);
+ tod = ctime(tv);
+ tod[24] = 0;
+ fprintf(f, "%s L%-6s %s %2d %s\n", tod,
+ todo, status? "fail" : "pass", speed, pwline);
+ fclose(f);
+ break;
+ }
+ }
+ return;
+}
+
+pgets(s, prompt, f)
+FILE *f;
+{
+ if (prompt) {
+ if (comfile < 0)
+ printf("$ ");
+ fflush(stdout);
+ }
+ if (fgets(s, 100,f))
+ return(1);
+ else
+ return(0);
+}
+
+trim(s)
+char *s;
+{
+ while (*s)
+ s++;
+ if (*--s == '\n')
+ *s=0;
+}
+
+scopy(fi, fo) /* copy fi to fo until a line with # */
+FILE *fi, *fo;
+{
+ int c;
+
+ while ((c = getc(fi)) != '#' && c != EOF) {
+ do {
+ if (fo != NULL)
+ putc(c, fo);
+ if (c == '\n')
+ break;
+ } while ((c = getc(fi)) != EOF);
+ }
+ if (c == '#')
+ ungetc(c, fi);
+ fflush(fo);
+}
+
+cmp(r) /* compare two files for status */
+char *r;
+{
+ char *s;
+ FILE *f1, *f2;
+ int c1, c2, stat;
+
+ for (s = r; *s != ' ' && *s != '\0'; s++)
+ ;
+ *s++ = 0; /* r contains file 1 */
+ while (*s == ' ')
+ s++;
+ f1 = fopen(r, "r");
+ f2 = fopen(s, "r");
+ if (f1 == NULL || f2 == NULL)
+ return(1); /* failure */
+ stat = 0;
+ for (;;) {
+ c1 = getc(f1);
+ c2 = getc(f2);
+ if (c1 != c2) {
+ stat = 1;
+ break;
+ }
+ if (c1 == EOF || c2 == EOF)
+ break;
+ }
+ fclose(f1);
+ fclose(f2);
+ return(stat);
+}
+
+char *
+wordb(s, t) /* in s, t is prefix; return tail */
+char *s, *t;
+{
+ int c;
+
+ while (c = *s++) {
+ if (c == ' ' || c == '\t')
+ break;
+ *t++ = c;
+ }
+ *t = 0;
+ while (*s == ' ' || *s == '\t')
+ s++;
+ return(c ? s : NULL);
+}
projects / unix-history / commitdiff