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Commit | Line | Data |
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d1b2a10e | 1 | %{ |
2 | #include <stdio.h> | |
3 | char *str_concat(), *ds(), *quote(), *malloc(), *realloc(); | |
4 | char *current_token = (char *)NULL; | |
5 | extern char *table_name; | |
6 | %} | |
7 | %union { | |
8 | char *dynstr; | |
9 | } | |
10 | ||
11 | %token ERROR_TABLE ERROR_CODE_ENTRY END | |
12 | %token <dynstr> STRING QUOTED_STRING | |
13 | %type <dynstr> ec_name description table_id | |
14 | %{ | |
15 | %} | |
16 | %start error_table | |
17 | %% | |
18 | ||
19 | error_table : ERROR_TABLE table_id error_codes END | |
20 | { table_name = ds($2); | |
21 | current_token = table_name; | |
22 | put_ecs(); } | |
23 | ; | |
24 | ||
25 | table_id : STRING | |
26 | { current_token = $1; | |
27 | set_table_num($1); | |
28 | $$ = $1; } | |
29 | ; | |
30 | ||
31 | error_codes : error_codes ec_entry | |
32 | | ec_entry | |
33 | ; | |
34 | ||
35 | ec_entry : ERROR_CODE_ENTRY ec_name ',' description | |
36 | { add_ec($2, $4); | |
37 | free($2); | |
38 | free($4); } | |
39 | | ERROR_CODE_ENTRY ec_name '=' STRING ',' description | |
40 | { add_ec_val($2, $4, $6); | |
41 | free($2); | |
42 | free($4); | |
43 | free($6); | |
44 | } | |
45 | ; | |
46 | ||
47 | ec_name : STRING | |
48 | { $$ = ds($1); | |
49 | current_token = $$; } | |
50 | ; | |
51 | ||
52 | description : QUOTED_STRING | |
53 | { $$ = ds($1); | |
54 | current_token = $$; } | |
55 | ; | |
56 | ||
57 | %% | |
58 | /* | |
59 | * | |
60 | * Copyright 1986, 1987 by the MIT Student Information Processing Board | |
61 | * | |
62 | * For copyright info, see mit-sipb-copyright.h. | |
63 | */ | |
64 | ||
65 | #include <string.h> | |
66 | #include <assert.h> | |
67 | #include <ctype.h> | |
68 | #include <sys/types.h> | |
69 | #include <sys/time.h> | |
70 | #include "internal.h" | |
71 | #include "error_table.h" | |
72 | #include "mit-sipb-copyright.h" | |
73 | ||
74 | #ifndef lint | |
75 | static char const rcsid_error_table_y[] = | |
76 | "$Header$"; | |
77 | #endif | |
78 | ||
79 | char *malloc(), *realloc(); | |
80 | extern FILE *hfile, *cfile; | |
81 | ||
82 | static long gensym_n = 0; | |
83 | char * | |
84 | gensym(x) | |
85 | char const *x; | |
86 | { | |
87 | char *symbol; | |
88 | if (!gensym_n) { | |
89 | struct timeval tv; | |
90 | struct timezone tzp; | |
91 | gettimeofday(&tv, &tzp); | |
92 | gensym_n = (tv.tv_sec%10000)*100 + tv.tv_usec/10000; | |
93 | } | |
94 | symbol = malloc(32 * sizeof(char)); | |
95 | gensym_n++; | |
96 | sprintf(symbol, "et%ld", gensym_n); | |
97 | return(symbol); | |
98 | } | |
99 | ||
100 | char * | |
101 | ds(string) | |
102 | char const *string; | |
103 | { | |
104 | char *rv; | |
105 | rv = malloc(strlen(string)+1); | |
106 | strcpy(rv, string); | |
107 | return(rv); | |
108 | } | |
109 | ||
110 | char * | |
111 | quote(string) | |
112 | char const *string; | |
113 | { | |
114 | char *rv; | |
115 | rv = malloc(strlen(string)+3); | |
116 | strcpy(rv, "\""); | |
117 | strcat(rv, string); | |
118 | strcat(rv, "\""); | |
119 | return(rv); | |
120 | } | |
121 | ||
122 | long table_number; | |
123 | int current = 0; | |
124 | char **error_codes = (char **)NULL; | |
125 | ||
126 | add_ec(name, description) | |
127 | char const *name, *description; | |
128 | { | |
129 | fprintf(cfile, "\t\"%s\",\n", description); | |
130 | if (error_codes == (char **)NULL) { | |
131 | error_codes = (char **)malloc(sizeof(char *)); | |
132 | *error_codes = (char *)NULL; | |
133 | } | |
134 | error_codes = (char **)realloc((char *)error_codes, | |
135 | (current + 2)*sizeof(char *)); | |
136 | error_codes[current++] = ds(name); | |
137 | error_codes[current] = (char *)NULL; | |
138 | } | |
139 | ||
140 | add_ec_val(name, val, description) | |
141 | char const *name, *val, *description; | |
142 | { | |
143 | const int ncurrent = atoi(val); | |
144 | if (ncurrent < current) { | |
145 | printf("Error code %s (%d) out of order", name, | |
146 | current); | |
147 | return; | |
148 | } | |
149 | ||
150 | while (ncurrent > current) | |
151 | fputs("\t(char *)NULL,\n", cfile), current++; | |
152 | ||
153 | fprintf(cfile, "\t\"%s\",\n", description); | |
154 | if (error_codes == (char **)NULL) { | |
155 | error_codes = (char **)malloc(sizeof(char *)); | |
156 | *error_codes = (char *)NULL; | |
157 | } | |
158 | error_codes = (char **)realloc((char *)error_codes, | |
159 | (current + 2)*sizeof(char *)); | |
160 | error_codes[current++] = ds(name); | |
161 | error_codes[current] = (char *)NULL; | |
162 | } | |
163 | ||
164 | put_ecs() | |
165 | { | |
166 | int i; | |
167 | for (i = 0; i < current; i++) { | |
168 | if (error_codes[i] != (char *)NULL) | |
169 | fprintf(hfile, "#define %-40s (%ldL)\n", | |
170 | error_codes[i], table_number + i); | |
171 | } | |
172 | } | |
173 | ||
174 | /* | |
175 | * char_to_num -- maps letters and numbers into a small numbering space | |
176 | * uppercase -> 1-26 | |
177 | * lowercase -> 27-52 | |
178 | * digits -> 53-62 | |
179 | * underscore-> 63 | |
180 | */ | |
181 | ||
182 | static const char char_set[] = | |
183 | "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789_"; | |
184 | ||
185 | int char_to_num(c) | |
186 | char c; | |
187 | { | |
188 | const char *where; | |
189 | int diff; | |
190 | ||
191 | where = strchr (char_set, c); | |
192 | if (where) { | |
193 | diff = where - char_set + 1; | |
194 | assert (diff < (1 << ERRCODE_RANGE)); | |
195 | return diff; | |
196 | } | |
197 | else if (isprint (c)) | |
198 | fprintf (stderr, | |
199 | "Illegal character `%c' in error table name\n", | |
200 | c); | |
201 | else | |
202 | fprintf (stderr, | |
203 | "Illegal character %03o in error table name\n", | |
204 | c); | |
205 | exit (1); | |
206 | } | |
207 | ||
208 | set_table_num(string) | |
209 | char *string; | |
210 | { | |
211 | if (char_to_num (string[0]) > char_to_num ('z')) { | |
212 | fprintf (stderr, "%s%s%s%s", | |
213 | "First character of error table name must be ", | |
214 | "a letter; name ``", | |
215 | string, "'' rejected\n"); | |
216 | exit (1); | |
217 | } | |
218 | if (strlen(string) > 4) { | |
219 | fprintf(stderr, "Table name %s too long, truncated ", | |
220 | string); | |
221 | string[4] = '\0'; | |
222 | fprintf(stderr, "to %s\n", string); | |
223 | } | |
224 | while (*string != '\0') { | |
225 | table_number = (table_number << BITS_PER_CHAR) | |
226 | + char_to_num(*string); | |
227 | string++; | |
228 | } | |
229 | table_number = table_number << ERRCODE_RANGE; | |
230 | } | |
231 | ||
232 | #include "et_lex.lex.c" |