+ try_fclose(file, w, f);
+ char * msg1 = "Trouble in ";
+ char * msg4 = "'.";
+ if (!access(p2, F_OK))
+ {
+ char * msg2 = " with unlink() on path '";
+ uint16_t size = strlen(msg1) + strlen(msg2) + strlen(msg4)
+ + strlen(f) + strlen(p2) + 1;
+ char msg[size];
+ sprintf(msg, "%s%s%s%s%s", msg1, f, msg2, p2, msg4);
+ exit_err(unlink(p2), w, msg);
+ }
+ char * msg2 = " with rename() from '";
+ char * msg3 = "' to '";
+ uint16_t size = strlen(msg1) + strlen(f) + strlen(msg2) + strlen(p1)
+ + strlen(msg3) + strlen(p2) + strlen(msg4) + 1;
+ char msg[size];
+ sprintf(msg, "%s%s%s%s%s%s%s", msg1, f, msg2, p1, msg3, p2, msg4);
+ exit_err(rename(p1, p2), w, msg);
+}
+
+
+
+extern uint16_t get_linemax(FILE * file, struct World * w, char * f)
+{
+ char * msg = trouble_msg(w, f, "textfile_sizes()");
+ uint16_t linemax;
+ exit_err(textfile_sizes(file, &linemax, NULL), w, msg);
+ free(msg);
+ return linemax;
+}
+
+
+
+extern uint8_t textfile_sizes(FILE * file, uint16_t * linemax_p,
+ uint16_t * n_lines_p)
+{
+ int c = 0;
+ uint16_t c_count = 0;
+ uint16_t n_lines = 0;
+ uint16_t linemax = 0;
+ while (1)
+ {
+ c = fgetc(file);
+ if (EOF == c)
+ {
+ break;
+ }
+ c_count++;
+ if ('\n' == c)
+ {
+ if (c_count > linemax)
+ {
+ linemax = c_count;
+ }
+ c_count = 0;
+ if (n_lines_p)
+ {
+ n_lines++;
+ }
+ }
+ }
+ if (0 == linemax && 0 < c_count) /* Handle files that consist of only one */
+ { /* line / lack newline chars. */
+ linemax = c_count;
+ }
+
+ if (-1 == fseek(file, 0, SEEK_SET))