| 87 |
{ |
{ |
| 88 |
struct parser_result *res; |
struct parser_result *res; |
| 89 |
struct parser_res *entry; |
struct parser_res *entry; |
| 90 |
char ch, *cp, *t, *buf, *buf_base; |
const struct parser_keywords *kwp; |
| 91 |
|
char ch, *cp, *t, *tp, *buf, *buf_base; |
| 92 |
size_t len, n; |
size_t len, n; |
| 93 |
struct stat sb; |
struct stat sb; |
| 94 |
|
char *entry_multi; |
| 95 |
|
unsigned entry_iter; |
| 96 |
|
|
| 97 |
res = xmalloc(sizeof (struct parser_result)); |
res = xmalloc(sizeof (struct parser_result)); |
| 98 |
CIRCLEQ_INIT(res); |
CIRCLEQ_INIT(res); |
| 122 |
loop_getline: |
loop_getline: |
| 123 |
/* get a line and add it to line buffer */ |
/* get a line and add it to line buffer */ |
| 124 |
if (*buf == '\0') |
if (*buf == '\0') |
| 125 |
goto eof; |
goto loop_eof; |
| 126 |
if (*buf == '\n') { |
if (*buf == '\n') { |
| 127 |
++buf; |
++buf; |
| 128 |
goto loop_getline; |
goto loop_getline; |
| 137 |
errx(1, "syntax error: expected lead line," |
errx(1, "syntax error: expected lead line," |
| 138 |
" got trail line!"); |
" got trail line!"); |
| 139 |
t = ++buf; |
t = ++buf; |
| 140 |
loop_storeline: |
goto loop_storeline; |
|
while (*t != '\n') |
|
|
++t; |
|
|
t = str_nsave(buf, t - buf + /* NL */ 1); |
|
|
goto loop_addline; |
|
| 141 |
} |
} |
| 142 |
if (cp != NULL) |
if (cp != NULL) |
| 143 |
goto process_line; |
goto process_line; |
| 144 |
if ((*buf >= 'A' && *buf <= 'Z') || |
if ((*buf >= 'A' && *buf <= 'Z') || |
| 145 |
(*buf >= 'a' && *buf <= 'z') || *buf == '_') { |
(*buf >= 'a' && *buf <= 'z') || *buf == '_') |
| 146 |
t = buf; |
t = buf; |
| 147 |
goto loop_storeline; |
else |
| 148 |
} |
errx(1, "syntax error: line must begin with" |
| 149 |
errx(1, "syntax error: line must begin with letter or underscore!"); |
" a letter or underscore!"); |
| 150 |
|
loop_storeline: |
| 151 |
|
while (*t != '\n') |
| 152 |
|
++t; |
| 153 |
|
t = str_nsave(buf, t - buf + /* NL */ 1); |
| 154 |
loop_addline: |
loop_addline: |
| 155 |
|
if (cp != NULL) { |
| 156 |
|
if (*(tp = cp + strlen(cp) - 2) == '\\') |
| 157 |
|
*tp = '\0'; |
| 158 |
|
} |
| 159 |
|
tp = str_add(cp, t); |
| 160 |
|
if (cp != NULL) |
| 161 |
|
free(cp); |
| 162 |
|
free(t); |
| 163 |
|
cp = tp; |
| 164 |
|
goto loop_getline; |
| 165 |
|
process_line: |
| 166 |
|
/* cp points to <line>[<nl><line>…][\]<nl> */ |
| 167 |
|
/* buf points to first byte of next line */ |
| 168 |
|
if (*(tp = cp + strlen(cp) - 2) == '\\') |
| 169 |
|
errx(1, "syntax error: expected trail line," |
| 170 |
|
" got lead line!"); |
| 171 |
|
process_lastline: |
| 172 |
|
/* cut off final newline */ |
| 173 |
|
*++tp = '\0'; |
| 174 |
|
|
| 175 |
|
/* parse the meat out of there */ |
| 176 |
|
if ((tp = strchr(cp, '\t')) == NULL) |
| 177 |
|
errx(1, "syntax error: expected keyword +" |
| 178 |
|
" tab + value!"); |
| 179 |
|
*tp++ = '\0'; |
| 180 |
|
/* cp points to keyword, tp points to value */ |
| 181 |
|
entry_multi = NULL; |
| 182 |
|
entry_iter = 0; |
| 183 |
|
for (kwp = kws; kwp->kwprefix != NULL; ++kwp) { |
| 184 |
|
char *np; |
| 185 |
|
|
| 186 |
|
/* exact match? */ |
| 187 |
|
if (!strcasecmp(cp, kwp->kwprefix)) |
| 188 |
|
/* yepp */ break; |
| 189 |
|
/* prefix match allowed? */ |
| 190 |
|
if (kwp->kwtype == KWT_NORMAL) |
| 191 |
|
/* nope */ continue; |
| 192 |
|
/* prefix match? */ |
| 193 |
|
if (strncasecmp(cp, kwp->kwprefix, n = strlen(kwp->kwprefix))) |
| 194 |
|
/* nope */ continue; |
| 195 |
|
if (cp[n] != '_') |
| 196 |
|
/* same */ continue; |
| 197 |
|
/* okay, we got a prefix match, get args */ |
| 198 |
|
np = cp + n + 1; |
| 199 |
|
if (kwp->kwtype == KWT_ITERATED || |
| 200 |
|
kwp->kwtype == KWT_MULTITER) { |
| 201 |
|
char *zp = np; |
| 202 |
|
|
| 203 |
|
if (zp[0] == '0' && (zp[1] == 'x' || zp[1] == 'X')) |
| 204 |
|
zp += 2; |
| 205 |
|
while (*zp >= '0' && *zp <= '9') |
| 206 |
|
++zp; |
| 207 |
|
if (zp == np) |
| 208 |
|
errx(1, "syntax error: iterator expected"); |
| 209 |
|
if (*zp != kwp->kwtype == KWT_ITERATED ? '\0' : '_') |
| 210 |
|
errx(1, "syntax error: %s expected," |
| 211 |
|
" got 0x%02X", kwp->kwtype == KWT_ITERATED ? |
| 212 |
|
"tab" : "underscore", *zp); |
| 213 |
|
*zp++ = '\0'; |
| 214 |
|
entry_iter = (unsigned)strtoul(np, NULL, 0); |
| 215 |
|
np = zp; |
| 216 |
|
} |
| 217 |
|
if (kwp->kwtype == KWT_MULTI || |
| 218 |
|
kwp->kwtype == KWT_MULTITER) |
| 219 |
|
entry_multi = str_save(np); |
| 220 |
|
/* values filled out */ |
| 221 |
|
break; |
| 222 |
|
} |
| 223 |
|
if (kwp->kwprefix == NULL) |
| 224 |
|
errx(1, "unknown keyword '%s'", cp); |
| 225 |
|
entry = xmalloc(sizeof (struct parser_res)); |
| 226 |
|
bzero(entry, sizeof (struct parser_res)); |
| 227 |
|
entry->keyword = kwp->kwnum; |
| 228 |
|
entry->kw_multi = entry_multi; |
| 229 |
|
entry->kw_iter = entry_iter; |
| 230 |
|
entry->value = str_save(tp); |
| 231 |
|
CIRCLEQ_INSERT_TAIL(res, entry, e); |
| 232 |
|
free(cp); |
| 233 |
|
goto loop_newline; |
| 234 |
|
loop_eof: |
| 235 |
|
if (cp != NULL) { |
| 236 |
|
if (*(tp = cp + strlen(cp) - 2) == '\\') |
| 237 |
|
errx(1, "syntax error: expected trail line," |
| 238 |
|
" read end of file!"); |
| 239 |
|
goto process_lastline; |
| 240 |
|
} |
| 241 |
|
free(buf_base); |
| 242 |
|
return (res); |
| 243 |
|
} |
| 244 |
|
|
| 245 |
|
const struct parser_keywords * |
| 246 |
|
parser_getkwbynum(parser_kwords num, const struct parser_keywords *kws) |
| 247 |
|
{ |
| 248 |
|
const struct parser_keywords *kwp; |
| 249 |
|
|
| 250 |
|
for (kwp = kws; kwp->kwprefix != NULL; ++kwp) |
| 251 |
|
if (kwp->kwnum == num) |
| 252 |
|
break; |
| 253 |
|
|
| 254 |
|
return (kwp->kwprefix == NULL ? NULL : kwp); |
| 255 |
|
} |
| 256 |
|
|
| 257 |
|
void |
| 258 |
|
nfo_parser_dump(struct parser_res *entry, const struct parser_keywords *kws) |
| 259 |
|
{ |
| 260 |
|
const struct parser_keywords *kwp; |
| 261 |
|
|
| 262 |
|
printf("keyword %s (type %s)", |
| 263 |
|
(kwp = parser_getkwbynum(entry->keyword, kws)) == NULL ? |
| 264 |
|
"<unknown>" : kwp->kwprefix, |
| 265 |
|
kwp == NULL ? "invalid" : |
| 266 |
|
kwp->kwtype == KWT_NORMAL ? "normal" : |
| 267 |
|
kwp->kwtype == KWT_MULTI ? "multi" : |
| 268 |
|
kwp->kwtype == KWT_ITERATED ? "iterated" : |
| 269 |
|
kwp->kwtype == KWT_MULTITER ? "multiter" : "unknown"); |
| 270 |
|
if (kwp) { |
| 271 |
|
if (kwp->kwtype == KWT_ITERATED || |
| 272 |
|
kwp->kwtype == KWT_MULTITER) |
| 273 |
|
printf(", iterator %u", entry->kw_iter); |
| 274 |
|
if (kwp->kwtype == KWT_MULTI || |
| 275 |
|
kwp->kwtype == KWT_MULTITER) |
| 276 |
|
printf(", multival '%s'", entry->kw_multi); |
| 277 |
|
} |
| 278 |
|
putchar('\n'); |
| 279 |
|
} |