Commit | Line | Data |
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ec15bdbc LM |
1 | /* depend: */ |
2 | /* cflags: */ | |
f2927108 | 3 | /* linker: atoi.o debug.o fdprintf.o parser.o -lm */ |
ec15bdbc | 4 | |
01f02c41 LM |
5 | //#include <malloc.h> |
6 | #include <stddef.h> | |
ec15bdbc | 7 | #include <stdio.h> |
ec15bdbc LM |
8 | #include <unistd.h> |
9 | ||
01f02c41 | 10 | #include "atoi.h" |
bc97a989 | 11 | #include "debug.h" |
01f02c41 | 12 | #include "fdprintf.h" |
bc97a989 | 13 | #include "parser.h" |
01f02c41 | 14 | |
ec15bdbc LM |
15 | /* constants */ |
16 | ||
17 | //#define BUFFER_SIZE 4096 | |
18 | #define BUFFER_SIZE 256 | |
19 | ||
20 | /* macros */ | |
21 | ||
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)) | |
25 | ||
ec15bdbc LM |
26 | /* gobal variables */ |
27 | ||
28 | char *progname = NULL; | |
4ee92d9d | 29 | int precision = 6; |
ec15bdbc LM |
30 | |
31 | /* help function */ | |
32 | ||
01f02c41 | 33 | int usage (int ret) |
ec15bdbc | 34 | { |
01f02c41 LM |
35 | int fd = ret ? stdfderr : stdfdout; |
36 | fdprintf (fd, "usage: %s\n", progname); | |
37 | fdprintf (fd, " -h : help message\n"); | |
4ee92d9d | 38 | fdprintf (fd, " -p : precision (%d)\n", precision); |
01f02c41 | 39 | fdprintf (fd, " -v : verbose level (%d)\n", verbose); |
ec15bdbc | 40 | |
01f02c41 | 41 | return ret; |
ec15bdbc LM |
42 | } |
43 | ||
44 | /* main function */ | |
45 | ||
46 | int main (int argc, char *argv[]) | |
47 | { | |
48 | char buffer[BUFFER_SIZE + 1] = {0}; | |
49 | char *pt = buffer; | |
01f02c41 | 50 | int i = 0, j = 0, n; |
efdfb543 | 51 | int ret = 0; |
01f02c41 LM |
52 | |
53 | /* program name */ | |
ec15bdbc LM |
54 | |
55 | progname = argv[0]; | |
01f02c41 LM |
56 | while (progname[i] != '\0') { |
57 | if ((progname[i] == '/') || (progname[i] == '\\')) { | |
58 | progname += i + 1; | |
59 | i = 0; | |
60 | } else { | |
61 | i++; | |
62 | } | |
63 | } | |
64 | ||
65 | /* argument processing */ | |
ec15bdbc | 66 | |
01f02c41 LM |
67 | while (argc-- > 1) { |
68 | char *arg = *(++argv); | |
69 | if (arg[0] != '-') { | |
70 | PRINTERR ("%s: invalid option -- %s\n", progname, arg); | |
71 | return usage (1); | |
72 | } | |
73 | char c = arg[1]; | |
ec15bdbc | 74 | switch (c) { |
4ee92d9d LM |
75 | case 'p': |
76 | arg = (arg[2]) ? arg + 2 : (--argc > 0) ? *(++argv) : NULL; | |
77 | if (arg == NULL) { | |
78 | PRINTERR ("%s: missing precision\n", progname); | |
79 | return usage (1); | |
80 | } | |
81 | precision = atoi (arg); | |
82 | break; | |
ec15bdbc | 83 | case 'v': |
01f02c41 LM |
84 | arg = (arg[2]) ? arg + 2 : (--argc > 0) ? *(++argv) : NULL; |
85 | if (arg == NULL) { | |
86 | PRINTERR ("%s: missing verbose level\n", progname); | |
87 | return usage (1); | |
88 | } | |
89 | verbose = atoi (arg); | |
ec15bdbc LM |
90 | break; |
91 | case 'h': | |
ec15bdbc | 92 | default: |
01f02c41 | 93 | return usage (c != 'h'); |
ec15bdbc LM |
94 | } |
95 | } | |
4ee92d9d LM |
96 | |
97 | /* format */ | |
98 | char format[8] = "=> %.f\n"; | |
99 | format[4] = '0' + precision; | |
ec15bdbc LM |
100 | |
101 | /* read from input stream */ | |
01f02c41 LM |
102 | |
103 | while ((n = read (stdfdin, pt, BUFFER_SIZE - (pt - buffer))) != 0) { | |
49223129 | 104 | VERBOSE (INFO, PRINTOUT ("read %d bytes\n", n)); |
ec15bdbc | 105 | n += (pt - buffer); |
bc97a989 LM |
106 | if ((n == 2) && (buffer[0] == '.')) { |
107 | return 0; | |
108 | } | |
ec15bdbc LM |
109 | |
110 | /* look for end of line */ | |
111 | for (i = 0, j = 0; i < n; i++) { | |
112 | if (buffer[i] == '\n') { | |
113 | buffer[i] = 0; | |
49223129 | 114 | VERBOSE (INFO, PRINTOUT ("line(%d): %s\n", j, buffer + j)); |
031d7bba LM |
115 | element_t *element = parser (buffer + j, NULL, 0); |
116 | if (element == ERROR_OP) { | |
bc97a989 | 117 | VERBOSE (WARNING, PRINTOUT ("error while parsing: %s\n", buffer)); |
efdfb543 | 118 | ret = 1; |
031d7bba | 119 | } else { |
f2927108 | 120 | VERBOSE (INFO, print_element (element, 0)); |
4ee92d9d | 121 | PRINTOUT (format, evaluate_element (element, 0)); |
031d7bba | 122 | delelement (element); |
efdfb543 | 123 | ret = 0; |
bc97a989 | 124 | } |
01f02c41 | 125 | //fsync (stdfdout); |
ec15bdbc LM |
126 | j = i + 1; |
127 | } | |
128 | } | |
129 | ||
130 | /* keep remainding */ | |
131 | if (j < n) { | |
132 | for (i = 0; i < n - j; i++) { | |
133 | buffer[i] = buffer[i + j]; | |
134 | } | |
135 | pt = buffer + n - j; | |
136 | for (i = n - j; i < BUFFER_SIZE; i++) { | |
137 | buffer[i] = 0; | |
138 | } | |
139 | } | |
140 | } | |
141 | ||
efdfb543 | 142 | return ret; |
ec15bdbc LM |
143 | } |
144 | ||
145 | // test: calc.exe -h | |
146 | // test: calc.exe -h | awk '/usage:/ { rc=1 } END { exit (1-rc) }' | |
b449884c | 147 | // test: echo 1 | calc.exe -v3 | grep -q value |
ec15bdbc LM |
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) }' | |
8a33b741 LM |
150 | // test: calc.exe error 2>&1 | grep -q 'invalid option' |
151 | // test: calc.exe -p 2>&1 | grep -q 'missing precision' | |
152 | // test: calc.exe -v 2>&1 | grep -q 'missing verbose' | |
f2927108 LM |
153 | // test: echo "1 + 2" | calc.exe | grep -q '=> 3' |
154 | // test: echo "1 - 2" | calc.exe | grep -q '=> -1' | |
155 | // test: echo "2 * 3" | calc.exe | grep -q '=> 6' | |
156 | // test: echo "1 / 2" | calc.exe | grep -q '=> 5e-1' | |
c47a9298 LM |
157 | // test: echo "8 % 3" | calc.exe | grep -q '=> 2' |
158 | // test: echo "-9 % 3.1" | calc.exe | grep -q '=> -2.8' | |
f2927108 LM |
159 | // test: echo "2 ^ 3" | calc.exe | grep -q '=> 8' |
160 | // test: echo "1e-1 + 2.34e3" | calc.exe | grep -q '=> 2.3401' | |
161 | // test: echo "sqrt (2)" | calc.exe | grep -q '=> 1.414213' | |
162 | // test: echo "pow (2, 3)" | calc.exe | grep -q '=> 8' | |
163 | // test: echo "cos (2)" | calc.exe | grep -q '=> -4.161468e-1' | |
164 | // test: echo "sin (2)" | calc.exe | grep -q '=> 9.092974e-1' | |
165 | // test: echo "atan (2)" | calc.exe | grep -q '=> 1.107148' | |
166 | // test: echo "exp (2)" | calc.exe | grep -q '=> 7.389056' | |
167 | // test: echo "log (2)" | calc.exe | grep -q '=> 6.931471e-1' | |
168 | // test: echo "2 + 3 - 4" | calc.exe | grep -q '=> 1' | |
169 | // test: echo "1 + cos (2 - 3)" | calc.exe | grep -q '=> 1.54030' | |
170 | // test: echo "cos (1 / 2) * 3" | calc.exe | grep -q '=> 2.63274' | |
171 | // test: echo "1 + 4 * (2 - 3)" | calc.exe | grep -q '=> -3' | |
172 | // test: echo "(2 - 3) / 4" | calc.exe | grep -q '=> -2.5e-1' | |
173 | // test: echo "pow (8 - 3, 4 / 3)" | calc.exe | grep -q '=> 8.549879' | |
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" | calc.exe | grep -q '=> 1' | |
177 | // test: echo "-1+2" | calc.exe | grep -q '=> 1' | |
178 | // test: echo "1-2" | calc.exe | grep -q '=> -1' | |
179 | // test: echo "1 * 2 / 3 + 4" | calc.exe | grep -q '=> 4.666666' | |
180 | // test: echo "2 ^ 3 * 4 + 5" | calc.exe | grep -q '=> 3.7e1' | |
181 | // test: echo "2 + 3 * 4 ^ 5" | calc.exe | grep -q '=> 3.074e3' | |
182 | // test: echo "2 ^ 3 * 4 + cos(5/6)" | calc.exe | grep -q '=> 3.267241e1' | |
fd88e359 ML |
183 | // test: echo "95-6.3*15-1" | calc.exe | grep -q '=> -5e-1' |
184 | // test: echo "95 - 6.3 * 15 - 1" | calc.exe | grep -q '=> -5e-1' | |
b449884c | 185 | // test: echo "95-6.3+15" | calc.exe | grep -q '=> 1.037e2' |
3b4b0bbe | 186 | // test: echo "-cos (0) + 1" | calc.exe | grep -q '=> 0' |
89cf0955 LM |
187 | // test: echo "quit" | calc.exe | grep -q 'bye' |
188 | // test: echo "help" | calc.exe | grep -q 'miscellaneous' | |
031d7bba LM |
189 | // test: echo "1 + 2 *" | calc.exe | grep -q 'error' |
190 | // test: echo "* 1 - 2" | calc.exe | grep -q 'error' | |
191 | // test: echo "2 + * 3" | calc.exe | grep -q 'error' | |
192 | // test: echo "sqrt 2" | calc.exe | grep -q 'error' | |
193 | // test: echo "pow (2)" | calc.exe | grep -q 'error' | |
4ee92d9d | 194 | // test: echo "1.23456789" | calc.exe -p 3 | grep -q '1\.234' |
8a33b741 LM |
195 | // test: echo . | calc.exe |
196 | // test: echo -e '1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1\n1 + 1' | ./calc.exe | grep -q 6.4e1 | |
197 | // test: echo -e '-cos (1)\n1 + 1\n1 - 1\n1 * 1\n1 / 1\n3%2\n2^2\nsqrt (2)\ncos (0)\nsin (0)\natan (0)\nlog (1)\nexp (1)\nhelp\nquit' | calc.exe -v 3 | grep -q bye | |
198 | // test: echo -e '1 +\n1 -\n1 * 1\n1 /\n3%\n2^\nsqrt ()\ncos ()\nsin ()\natan ()\nlog ()\nexp ()\n1 + (' | calc.exe |grep -c error |xargs test 11 = | |
ec15bdbc LM |
199 | |
200 | /* vim: set ts=4 sw=4 et: */ |