/* depend: */
/* cflags: */
-/* linker: atoi.o fdprintf.o */
+/* linker: atoi.o debug.o fdprintf.o parser.o */
//#include <malloc.h>
#include <stddef.h>
#include <unistd.h>
#include "atoi.h"
+#include "debug.h"
#include "fdprintf.h"
+#include "parser.h"
/* constants */
#define MIN(x, y) (((x) < (y)) ? (x) : (y))
#define MAX(x, y) (((x) > (y)) ? (x) : (y))
-/* verbose */
-
-#define ERROR 0
-#define WARNING 1
-#define INFO 2
-#define DEBUG 3
-
-#define VERBOSE(level, statement...) do { if (level <= verbose) { statement; } } while(0)
-
/* gobal variables */
char *progname = NULL;
-int verbose = 2;
/* help function */
char buffer[BUFFER_SIZE + 1] = {0};
char *pt = buffer;
int i = 0, j = 0, n;
+ int ret = 0;
/* program name */
/* read from input stream */
while ((n = read (stdfdin, pt, BUFFER_SIZE - (pt - buffer))) != 0) {
- VERBOSE (DEBUG, PRINTOUT ("read %d bytes\n", n));
+ VERBOSE (INFO, PRINTOUT ("read %d bytes\n", n));
n += (pt - buffer);
+ if ((n == 2) && (buffer[0] == '.')) {
+ return 0;
+ }
/* look for end of line */
for (i = 0, j = 0; i < n; i++) {
if (buffer[i] == '\n') {
buffer[i] = 0;
- VERBOSE (DEBUG, PRINTOUT ("line(%d): %s\n", j, buffer + j));
+ VERBOSE (INFO, PRINTOUT ("line(%d): %s\n", j, buffer + j));
+ element_t *element = parser (buffer, NULL);
+ if (element == (void *)(-1)) {
+ VERBOSE (WARNING, PRINTOUT ("error while parsing: %s\n", buffer));
+ ret = 1;
+ } else {
+ print_element (element, 0);
+ ret = 0;
+ }
//fsync (stdfdout);
- fflush (stdout);
j = i + 1;
}
}
}
}
- return 0;
+ return ret;
}
// test: calc.exe -h
// test: calc.exe -h | awk '/usage:/ { rc=1 } END { exit (1-rc) }'
// test: calc.exe -_ 2> /dev/null | awk 'END { if (NR == 0) { exit(0) } else exit (1) }'
// test: calc.exe -_ 2>&1 | awk '/usage:/ { rc=1 } END { exit (1-rc) }'
-// test: echo "foo\nbar\nfoobar" | calc.exe -v3
+// test: echo "1 + 2" | calc.exe
+// test: echo "1 - 2" | calc.exe
+// test: echo "1 * 2" | calc.exe
+// test: echo "1 / 2" | calc.exe
+// test: echo "2 ^ 3" | calc.exe
+// test: echo "1e-1 + 2.34e5" | calc.exe
+// test: echo "sqrt (2)" | calc.exe
+// test: echo "pow (2, 3)" | calc.exe
+// test: echo "cos (2)" | calc.exe
+// test: echo "sin (2)" | calc.exe
+// test: echo "atan (2)" | calc.exe
+// test: echo "exp (2)" | calc.exe
+// test: echo "log (2)" | calc.exe
+// test: echo "1 + 2 - 3" | calc.exe
+// test: echo "1 + cos (2 - 3)" | calc.exe
+// test: echo "1 + 4 * (2 - 3)" | calc.exe
+// test: echo "(2 - 3) / 4" | calc.exe
+// test: echo "pow (2 - 3, 8 / 3)" | calc.exe
+// test: echo "1 + -2" | calc.exe
+// test: echo "1 - +2" | calc.exe
+// test: echo "-1 + +2" | calc.exe
+// test: echo "-1 +2" | calc.exe
/* vim: set ts=4 sw=4 et: */