3 /* linker: atoi.o debug.o fdprintf.o parser.o -lm */
17 //#define BUFFER_SIZE 4096
18 #define BUFFER_SIZE 256
22 #define CEIL(x, y) (((x) + (y) - 1) / (y))
23 #define MIN(x, y) (((x) < (y)) ? (x) : (y))
24 #define MAX(x, y) (((x) > (y)) ? (x) : (y))
28 char *progname
= NULL
;
35 int fd
= ret
? stdfderr
: stdfdout
;
36 fdprintf (fd
, "usage: %s\n", progname
);
37 fdprintf (fd
, " -h : help message\n");
38 fdprintf (fd
, " -p : precision (%d)\n", precision
);
39 fdprintf (fd
, " -v : verbose level (%d)\n", verbose
);
46 int main (int argc
, char *argv
[])
48 char buffer
[BUFFER_SIZE
+ 1] = {0};
56 while (progname
[i
] != '\0') {
57 if ((progname
[i
] == '/') || (progname
[i
] == '\\')) {
65 /* argument processing */
68 char *arg
= *(++argv
);
70 PRINTERR ("%s: invalid option -- %s\n", progname
, arg
);
76 arg
= (arg
[2]) ? arg
+ 2 : (--argc
> 0) ? *(++argv
) : NULL
;
78 PRINTERR ("%s: missing precision\n", progname
);
81 precision
= atoi (arg
);
84 arg
= (arg
[2]) ? arg
+ 2 : (--argc
> 0) ? *(++argv
) : NULL
;
86 PRINTERR ("%s: missing verbose level\n", progname
);
93 return usage (c
!= 'h');
98 char format
[8] = "=> %.f\n";
99 format
[4] = '0' + precision
;
101 /* read from input stream */
103 while ((n
= read (stdfdin
, pt
, BUFFER_SIZE
- (pt
- buffer
))) != 0) {
104 VERBOSE (INFO
, PRINTOUT ("read %d bytes\n", n
));
106 if ((n
== 2) && (buffer
[0] == '.')) {
110 /* look for end of line */
111 for (i
= 0, j
= 0; i
< n
; i
++) {
112 if (buffer
[i
] == '\n') {
114 VERBOSE (INFO
, PRINTOUT ("line(%d): %s\n", j
, buffer
+ j
));
115 element_t
*element
= parser (buffer
+ j
, NULL
, 0);
116 if (element
== ERROR_OP
) {
117 VERBOSE (WARNING
, PRINTOUT ("error while parsing: %s\n", buffer
));
120 VERBOSE (INFO
, print_element (element
, 0));
121 PRINTOUT (format
, evaluate_element (element
, 0));
122 delelement (element
);
130 /* keep remainding */
132 for (i
= 0; i
< n
- j
; i
++) {
133 buffer
[i
] = buffer
[i
+ j
];
136 for (i
= n
- j
; i
< BUFFER_SIZE
; i
++) {
146 // test: calc.exe -h | awk '/usage:/ { rc=1 } END { exit (1-rc) }'
147 // test: echo 1 | calc.exe -v3 | grep -q value
148 // test: calc.exe -_ 2> /dev/null | awk 'END { if (NR == 0) { exit(0) } else exit (1) }'
149 // test: calc.exe -_ 2>&1 | awk '/usage:/ { rc=1 } END { exit (1-rc) }'
150 // test: echo "1 + 2" | calc.exe | grep -q '=> 3'
151 // test: echo "1 - 2" | calc.exe | grep -q '=> -1'
152 // test: echo "2 * 3" | calc.exe | grep -q '=> 6'
153 // test: echo "1 / 2" | calc.exe | grep -q '=> 5e-1'
154 // test: echo "8 % 3" | calc.exe | grep -q '=> 2'
155 // test: echo "-9 % 3.1" | calc.exe | grep -q '=> -2.8'
156 // test: echo "2 ^ 3" | calc.exe | grep -q '=> 8'
157 // test: echo "1e-1 + 2.34e3" | calc.exe | grep -q '=> 2.3401'
158 // test: echo "sqrt (2)" | calc.exe | grep -q '=> 1.414213'
159 // test: echo "pow (2, 3)" | calc.exe | grep -q '=> 8'
160 // test: echo "cos (2)" | calc.exe | grep -q '=> -4.161468e-1'
161 // test: echo "sin (2)" | calc.exe | grep -q '=> 9.092974e-1'
162 // test: echo "atan (2)" | calc.exe | grep -q '=> 1.107148'
163 // test: echo "exp (2)" | calc.exe | grep -q '=> 7.389056'
164 // test: echo "log (2)" | calc.exe | grep -q '=> 6.931471e-1'
165 // test: echo "2 + 3 - 4" | calc.exe | grep -q '=> 1'
166 // test: echo "1 + cos (2 - 3)" | calc.exe | grep -q '=> 1.54030'
167 // test: echo "cos (1 / 2) * 3" | calc.exe | grep -q '=> 2.63274'
168 // test: echo "1 + 4 * (2 - 3)" | calc.exe | grep -q '=> -3'
169 // test: echo "(2 - 3) / 4" | calc.exe | grep -q '=> -2.5e-1'
170 // test: echo "pow (8 - 3, 4 / 3)" | calc.exe | grep -q '=> 8.549879'
171 // test: echo "1 + -2" | calc.exe | grep -q '=> -1'
172 // test: echo "1 - +2" | calc.exe | grep -q '=> -1'
173 // test: echo "-1 + +2" | calc.exe | grep -q '=> 1'
174 // test: echo "-1+2" | calc.exe | grep -q '=> 1'
175 // test: echo "1-2" | calc.exe | grep -q '=> -1'
176 // test: echo "1 * 2 / 3 + 4" | calc.exe | grep -q '=> 4.666666'
177 // test: echo "2 ^ 3 * 4 + 5" | calc.exe | grep -q '=> 3.7e1'
178 // test: echo "2 + 3 * 4 ^ 5" | calc.exe | grep -q '=> 3.074e3'
179 // test: echo "2 ^ 3 * 4 + cos(5/6)" | calc.exe | grep -q '=> 3.267241e1'
180 // test: echo "95-6.3*15-1" | calc.exe | grep -q '=> -5e-1'
181 // test: echo "95 - 6.3 * 15 - 1" | calc.exe | grep -q '=> -5e-1'
182 // test: echo "95-6.3+15" | calc.exe | grep -q '=> 1.037e2'
183 // test: echo "-cos (0) + 1" | calc.exe | grep -q '=> 0'
184 // test: echo "quit" | calc.exe | grep -q 'bye'
185 // test: echo "help" | calc.exe | grep -q 'miscellaneous'
186 // test: echo "1 + 2 *" | calc.exe | grep -q 'error'
187 // test: echo "* 1 - 2" | calc.exe | grep -q 'error'
188 // test: echo "2 + * 3" | calc.exe | grep -q 'error'
189 // test: echo "sqrt 2" | calc.exe | grep -q 'error'
190 // test: echo "pow (2)" | calc.exe | grep -q 'error'
191 // test: echo "1.23456789" | calc.exe -p 3 | grep -q '1\.234'
193 /* vim: set ts=4 sw=4 et: */