Commit | Line | Data |
---|---|---|
ec15bdbc LM |
1 | /* depend: */ |
2 | /* cflags: */ | |
5898ff24 | 3 | /* linker: debug.o fdprintf.o parser.o -lm -lreadline */ |
ec15bdbc | 4 | |
680bf70a | 5 | #include <malloc.h> |
01f02c41 | 6 | #include <stddef.h> |
ec15bdbc | 7 | #include <stdio.h> |
5898ff24 LM |
8 | #include <unistd.h> |
9 | ||
10 | #include <readline/readline.h> | |
11 | #include <readline/history.h> | |
ec15bdbc | 12 | |
bc97a989 | 13 | #include "debug.h" |
01f02c41 | 14 | #include "fdprintf.h" |
bc97a989 | 15 | #include "parser.h" |
01f02c41 | 16 | |
ec15bdbc LM |
17 | /* constants */ |
18 | ||
5898ff24 LM |
19 | #define BUFFER_SIZE 4096 |
20 | ||
ec15bdbc LM |
21 | /* macros */ |
22 | ||
23 | #define CEIL(x, y) (((x) + (y) - 1) / (y)) | |
24 | #define MIN(x, y) (((x) < (y)) ? (x) : (y)) | |
25 | #define MAX(x, y) (((x) > (y)) ? (x) : (y)) | |
26 | ||
ec15bdbc LM |
27 | /* gobal variables */ |
28 | ||
29 | char *progname = NULL; | |
5898ff24 | 30 | int mode = 1; |
4ee92d9d | 31 | int precision = 6; |
ec15bdbc LM |
32 | |
33 | /* help function */ | |
34 | ||
01f02c41 | 35 | int usage (int ret) |
ec15bdbc | 36 | { |
01f02c41 LM |
37 | int fd = ret ? stdfderr : stdfdout; |
38 | fdprintf (fd, "usage: %s\n", progname); | |
39 | fdprintf (fd, " -h : help message\n"); | |
5898ff24 | 40 | fdprintf (fd, " -n : no readline mode (%s)\n", mode ? "yes" : "no"); |
4ee92d9d | 41 | fdprintf (fd, " -p : precision (%d)\n", precision); |
01f02c41 | 42 | fdprintf (fd, " -v : verbose level (%d)\n", verbose); |
ec15bdbc | 43 | |
01f02c41 | 44 | return ret; |
ec15bdbc LM |
45 | } |
46 | ||
47 | /* main function */ | |
48 | ||
680bf70a | 49 | int main (int argc, char *argv[]) |
ec15bdbc | 50 | { |
5898ff24 LM |
51 | char *buffer = NULL; |
52 | char buffer_static[BUFFER_SIZE + 1] = {0}; | |
53 | int i = 0, nb = 1; | |
efdfb543 | 54 | int ret = 0; |
01f02c41 LM |
55 | |
56 | /* program name */ | |
ec15bdbc LM |
57 | |
58 | progname = argv[0]; | |
01f02c41 LM |
59 | while (progname[i] != '\0') { |
60 | if ((progname[i] == '/') || (progname[i] == '\\')) { | |
61 | progname += i + 1; | |
62 | i = 0; | |
63 | } else { | |
64 | i++; | |
65 | } | |
66 | } | |
67 | ||
68 | /* argument processing */ | |
ec15bdbc | 69 | |
01f02c41 LM |
70 | while (argc-- > 1) { |
71 | char *arg = *(++argv); | |
72 | if (arg[0] != '-') { | |
73 | PRINTERR ("%s: invalid option -- %s\n", progname, arg); | |
74 | return usage (1); | |
75 | } | |
76 | char c = arg[1]; | |
ec15bdbc | 77 | switch (c) { |
5898ff24 LM |
78 | case 'n': |
79 | mode = 0; | |
80 | buffer = buffer_static; | |
81 | break; | |
4ee92d9d LM |
82 | case 'p': |
83 | arg = (arg[2]) ? arg + 2 : (--argc > 0) ? *(++argv) : NULL; | |
84 | if (arg == NULL) { | |
85 | PRINTERR ("%s: missing precision\n", progname); | |
86 | return usage (1); | |
87 | } | |
88 | precision = atoi (arg); | |
89 | break; | |
ec15bdbc | 90 | case 'v': |
01f02c41 LM |
91 | arg = (arg[2]) ? arg + 2 : (--argc > 0) ? *(++argv) : NULL; |
92 | if (arg == NULL) { | |
93 | PRINTERR ("%s: missing verbose level\n", progname); | |
94 | return usage (1); | |
95 | } | |
96 | verbose = atoi (arg); | |
ec15bdbc LM |
97 | break; |
98 | case 'h': | |
ec15bdbc | 99 | default: |
01f02c41 | 100 | return usage (c != 'h'); |
ec15bdbc LM |
101 | } |
102 | } | |
680bf70a | 103 | |
4ee92d9d LM |
104 | /* format */ |
105 | char format[8] = "=> %.f\n"; | |
106 | format[4] = '0' + precision; | |
ec15bdbc LM |
107 | |
108 | /* read from input stream */ | |
01f02c41 | 109 | |
5898ff24 LM |
110 | while (1) { |
111 | char *line[BUFFER_SIZE] = {0}; | |
680bf70a | 112 | |
5898ff24 LM |
113 | if (mode) { |
114 | if ((buffer = readline ("<= ")) == NULL) { | |
115 | break; | |
116 | } | |
ec15bdbc | 117 | |
5898ff24 LM |
118 | /* check empty line */ |
119 | if (strlen (buffer) == 0) { | |
120 | free (buffer); | |
121 | continue; | |
122 | } else if (strcmp (buffer, ".") == 0) { | |
123 | break; | |
124 | } | |
125 | line[0] = buffer; | |
126 | ||
127 | /* add line into history */ | |
128 | add_history (buffer); | |
129 | VERBOSE (INFO, PRINTOUT ("line (%d): '%s'\n", where_history (), buffer)); | |
130 | if (where_history () == 10) { | |
131 | HIST_ENTRY *last = remove_history (0); | |
132 | if (last) { | |
133 | free_history_entry (last); | |
134 | } | |
ec15bdbc | 135 | } |
5898ff24 LM |
136 | } else { |
137 | if (read (stdfdin, buffer, BUFFER_SIZE) == 0) { | |
138 | break; | |
139 | } | |
140 | nb = 0; | |
141 | char *pt = line[nb++] = buffer; | |
142 | while (*pt++ != '\0') { | |
143 | if (*pt == '\n') { | |
144 | *pt = '\0'; | |
145 | line[nb++] = ++pt; | |
146 | } | |
147 | } | |
148 | VERBOSE (INFO, PRINTOUT ("line: '%s'\n", buffer)); | |
ec15bdbc LM |
149 | } |
150 | ||
680bf70a | 151 | /* look for end of line */ |
5898ff24 LM |
152 | for (i = 0; (i < nb) && (ret != 1); i++) { |
153 | if (*line[i] == '\0') { | |
154 | continue; | |
155 | } | |
156 | element_t *element = parser (line[i], NULL, 0); | |
157 | if (element == ERROR_OP) { | |
158 | VERBOSE (WARNING, PRINTOUT ("error while parsing: %s\n", line[i])); | |
159 | ret = 1; | |
160 | } else { | |
161 | VERBOSE (INFO, print_element (element, 0)); | |
162 | PRINTOUT (format, evaluate_element (element, 0)); | |
163 | delelement (element); | |
164 | ret = 0; | |
165 | } | |
ec15bdbc | 166 | } |
680bf70a | 167 | |
5898ff24 LM |
168 | if (mode) { |
169 | free (buffer); | |
170 | } else { | |
171 | memset (buffer, 0, BUFFER_SIZE); | |
172 | } | |
ec15bdbc LM |
173 | } |
174 | ||
efdfb543 | 175 | return ret; |
ec15bdbc LM |
176 | } |
177 | ||
178 | // test: calc.exe -h | |
179 | // test: calc.exe -h | awk '/usage:/ { rc=1 } END { exit (1-rc) }' | |
b449884c | 180 | // test: echo 1 | calc.exe -v3 | grep -q value |
ec15bdbc LM |
181 | // test: calc.exe -_ 2> /dev/null | awk 'END { if (NR == 0) { exit(0) } else exit (1) }' |
182 | // test: calc.exe -_ 2>&1 | awk '/usage:/ { rc=1 } END { exit (1-rc) }' | |
8a33b741 LM |
183 | // test: calc.exe error 2>&1 | grep -q 'invalid option' |
184 | // test: calc.exe -p 2>&1 | grep -q 'missing precision' | |
185 | // test: calc.exe -v 2>&1 | grep -q 'missing verbose' | |
f2927108 LM |
186 | // test: echo "1 + 2" | calc.exe | grep -q '=> 3' |
187 | // test: echo "1 - 2" | calc.exe | grep -q '=> -1' | |
188 | // test: echo "2 * 3" | calc.exe | grep -q '=> 6' | |
189 | // test: echo "1 / 2" | calc.exe | grep -q '=> 5e-1' | |
c47a9298 LM |
190 | // test: echo "8 % 3" | calc.exe | grep -q '=> 2' |
191 | // test: echo "-9 % 3.1" | calc.exe | grep -q '=> -2.8' | |
f2927108 LM |
192 | // test: echo "2 ^ 3" | calc.exe | grep -q '=> 8' |
193 | // test: echo "1e-1 + 2.34e3" | calc.exe | grep -q '=> 2.3401' | |
194 | // test: echo "sqrt (2)" | calc.exe | grep -q '=> 1.414213' | |
195 | // test: echo "pow (2, 3)" | calc.exe | grep -q '=> 8' | |
196 | // test: echo "cos (2)" | calc.exe | grep -q '=> -4.161468e-1' | |
197 | // test: echo "sin (2)" | calc.exe | grep -q '=> 9.092974e-1' | |
198 | // test: echo "atan (2)" | calc.exe | grep -q '=> 1.107148' | |
199 | // test: echo "exp (2)" | calc.exe | grep -q '=> 7.389056' | |
200 | // test: echo "log (2)" | calc.exe | grep -q '=> 6.931471e-1' | |
201 | // test: echo "2 + 3 - 4" | calc.exe | grep -q '=> 1' | |
202 | // test: echo "1 + cos (2 - 3)" | calc.exe | grep -q '=> 1.54030' | |
203 | // test: echo "cos (1 / 2) * 3" | calc.exe | grep -q '=> 2.63274' | |
204 | // test: echo "1 + 4 * (2 - 3)" | calc.exe | grep -q '=> -3' | |
205 | // test: echo "(2 - 3) / 4" | calc.exe | grep -q '=> -2.5e-1' | |
206 | // test: echo "pow (8 - 3, 4 / 3)" | calc.exe | grep -q '=> 8.549879' | |
207 | // test: echo "1 + -2" | calc.exe | grep -q '=> -1' | |
208 | // test: echo "1 - +2" | calc.exe | grep -q '=> -1' | |
209 | // test: echo "-1 + +2" | calc.exe | grep -q '=> 1' | |
210 | // test: echo "-1+2" | calc.exe | grep -q '=> 1' | |
211 | // test: echo "1-2" | calc.exe | grep -q '=> -1' | |
212 | // test: echo "1 * 2 / 3 + 4" | calc.exe | grep -q '=> 4.666666' | |
213 | // test: echo "2 ^ 3 * 4 + 5" | calc.exe | grep -q '=> 3.7e1' | |
214 | // test: echo "2 + 3 * 4 ^ 5" | calc.exe | grep -q '=> 3.074e3' | |
215 | // test: echo "2 ^ 3 * 4 + cos(5/6)" | calc.exe | grep -q '=> 3.267241e1' | |
fd88e359 ML |
216 | // test: echo "95-6.3*15-1" | calc.exe | grep -q '=> -5e-1' |
217 | // test: echo "95 - 6.3 * 15 - 1" | calc.exe | grep -q '=> -5e-1' | |
b449884c | 218 | // test: echo "95-6.3+15" | calc.exe | grep -q '=> 1.037e2' |
3b4b0bbe | 219 | // test: echo "-cos (0) + 1" | calc.exe | grep -q '=> 0' |
89cf0955 LM |
220 | // test: echo "quit" | calc.exe | grep -q 'bye' |
221 | // test: echo "help" | calc.exe | grep -q 'miscellaneous' | |
031d7bba LM |
222 | // test: echo "1 + 2 *" | calc.exe | grep -q 'error' |
223 | // test: echo "* 1 - 2" | calc.exe | grep -q 'error' | |
224 | // test: echo "2 + * 3" | calc.exe | grep -q 'error' | |
225 | // test: echo "sqrt 2" | calc.exe | grep -q 'error' | |
226 | // test: echo "pow (2)" | calc.exe | grep -q 'error' | |
4ee92d9d | 227 | // test: echo "1.23456789" | calc.exe -p 3 | grep -q '1\.234' |
8a33b741 | 228 | // test: echo . | calc.exe |
5898ff24 LM |
229 | // 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 -n | grep -q 6.4e1 |
230 | // 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 -n | grep -q 2 | |
680bf70a | 231 | // 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 |
5898ff24 | 232 | // 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 2 |
8a33b741 LM |
233 | // 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 |
234 | // 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 |
235 | |
236 | /* vim: set ts=4 sw=4 et: */ |