diff options
Diffstat (limited to 'Build/source/libs/teckit/TECkit-2.5.1/SFconv/expat/xmlparse/hashtable.c')
-rw-r--r-- | Build/source/libs/teckit/TECkit-2.5.1/SFconv/expat/xmlparse/hashtable.c | 151 |
1 files changed, 151 insertions, 0 deletions
diff --git a/Build/source/libs/teckit/TECkit-2.5.1/SFconv/expat/xmlparse/hashtable.c b/Build/source/libs/teckit/TECkit-2.5.1/SFconv/expat/xmlparse/hashtable.c new file mode 100644 index 00000000000..780a0610414 --- /dev/null +++ b/Build/source/libs/teckit/TECkit-2.5.1/SFconv/expat/xmlparse/hashtable.c @@ -0,0 +1,151 @@ +/* +The contents of this file are subject to the Mozilla Public License +Version 1.1 (the "License"); you may not use this file except in +csompliance with the License. You may obtain a copy of the License at +http://www.mozilla.org/MPL/ + +Software distributed under the License is distributed on an "AS IS" +basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the +License for the specific language governing rights and limitations +under the License. + +The Original Code is expat. + +The Initial Developer of the Original Code is James Clark. +Portions created by James Clark are Copyright (C) 1998, 1999 +James Clark. All Rights Reserved. + +Contributor(s): + +Alternatively, the contents of this file may be used under the terms +of the GNU General Public License (the "GPL"), in which case the +provisions of the GPL are applicable instead of those above. If you +wish to allow use of your version of this file only under the terms of +the GPL and not to allow others to use your version of this file under +the MPL, indicate your decision by deleting the provisions above and +replace them with the notice and other provisions required by the +GPL. If you do not delete the provisions above, a recipient may use +your version of this file under either the MPL or the GPL. +*/ + +#include "xmldef.h" + +#ifdef XML_UNICODE_WCHAR_T +#ifndef XML_UNICODE +#define XML_UNICODE +#endif +#endif + +#include "hashtable.h" + +#define INIT_SIZE 64 + +static +int keyeq(KEY s1, KEY s2) +{ + for (; *s1 == *s2; s1++, s2++) + if (*s1 == 0) + return 1; + return 0; +} + +static +unsigned long hash(KEY s) +{ + unsigned long h = 0; + while (*s) + h = (h << 5) + h + (unsigned char)*s++; + return h; +} + +NAMED *lookup(HASH_TABLE *table, KEY name, size_t createSize) +{ + size_t i; + if (table->size == 0) { + if (!createSize) + return 0; + table->v = calloc(INIT_SIZE, sizeof(NAMED *)); + if (!table->v) + return 0; + table->size = INIT_SIZE; + table->usedLim = INIT_SIZE / 2; + i = hash(name) & (table->size - 1); + } + else { + unsigned long h = hash(name); + for (i = h & (table->size - 1); + table->v[i]; + i == 0 ? i = table->size - 1 : --i) { + if (keyeq(name, table->v[i]->name)) + return table->v[i]; + } + if (!createSize) + return 0; + if (table->used == table->usedLim) { + /* check for overflow */ + size_t newSize = table->size * 2; + NAMED **newV = calloc(newSize, sizeof(NAMED *)); + if (!newV) + return 0; + for (i = 0; i < table->size; i++) + if (table->v[i]) { + size_t j; + for (j = hash(table->v[i]->name) & (newSize - 1); + newV[j]; + j == 0 ? j = newSize - 1 : --j) + ; + newV[j] = table->v[i]; + } + free(table->v); + table->v = newV; + table->size = newSize; + table->usedLim = newSize/2; + for (i = h & (table->size - 1); + table->v[i]; + i == 0 ? i = table->size - 1 : --i) + ; + } + } + table->v[i] = calloc(1, createSize); + if (!table->v[i]) + return 0; + table->v[i]->name = name; + (table->used)++; + return table->v[i]; +} + +void hashTableDestroy(HASH_TABLE *table) +{ + size_t i; + for (i = 0; i < table->size; i++) { + NAMED *p = table->v[i]; + if (p) + free(p); + } + free(table->v); +} + +void hashTableInit(HASH_TABLE *p) +{ + p->size = 0; + p->usedLim = 0; + p->used = 0; + p->v = 0; +} + +void hashTableIterInit(HASH_TABLE_ITER *iter, const HASH_TABLE *table) +{ + iter->p = table->v; + iter->end = iter->p + table->size; +} + +NAMED *hashTableIterNext(HASH_TABLE_ITER *iter) +{ + while (iter->p != iter->end) { + NAMED *tem = *(iter->p)++; + if (tem) + return tem; + } + return 0; +} + |