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/* $Id$ */
#include <stdlib.h>
#include <string.h>
#include <assert.h>
#include "cmsys.h"
#define chartoupper(c) ((c >= 'a' && c <= 'z') ? c+'A'-'a' : c)
void
Vector_init(struct Vector *self, const int size)
{
assert(size != 0);
self->size = size;
self->length = 0;
self->capacity = 0;
self->base = NULL;
self->constant = false;
}
void
Vector_init_const(struct Vector *self, char * base, const int length, const int size)
{
assert(size != 0);
self->size = size;
self->length = length;
self->capacity = 0;
self->base = base;
self->constant = true;
}
void
Vector_delete(struct Vector *self)
{
self->length = 0;
self->capacity = 0;
if (self->base && !self->constant)
free(self->base);
self->base = NULL;
self->constant = false;
}
void
Vector_clear(struct Vector *self, const int size)
{
Vector_delete(self);
Vector_init(self, size);
}
int
Vector_length(const struct Vector *self)
{
return self->length;
}
void
Vector_resize(struct Vector *self, const int length)
{
int capacity = length * self->size;
assert(!self->constant);
#define MIN_CAPACITY 4096
if (capacity == 0) {
if (self->base)
free(self->base);
self->base = NULL;
self->capacity = 0;
} else {
int old_capacity = self->capacity;
assert(capacity > 0);
if (self->capacity == 0)
self->capacity = MIN_CAPACITY;
//if (self->capacity > capacity && self->capacity > MIN_CAPACITY)
// self->capacity /= 2;
while (self->capacity < capacity)
self->capacity *= 2;
if (old_capacity != self->capacity || self->base == NULL) {
char *tmp = (char *)realloc(self->base, self->capacity);
assert(tmp);
self->base = tmp;
}
}
}
void
Vector_add(struct Vector *self, const char *name)
{
assert(!self->constant);
Vector_resize(self, self->length+1);
strlcpy(self->base + self->size * self->length, name, self->size);
self->length++;
}
const char*
Vector_get(const struct Vector *self, const int idx)
{
assert(0 <= idx && idx < self->length);
return self->base + self->size * idx;
}
int
Vector_MaxLen(const struct Vector *list, const int offset, const int count)
{
int i, j;
int maxlen = 0;
for(i=offset, j=count; i<list->length && j > 0; i++, j--) {
int len = strlen(list->base + list->size * i);
if (len > maxlen)
maxlen = len;
}
assert(maxlen <= list->size);
return maxlen;
}
int
Vector_match(const struct Vector *src, struct Vector *dst, const int key, const int pos)
{
int uckey, lckey;
int i;
Vector_clear(dst, src->size);
uckey = chartoupper(key);
if (key >= 'A' && key <= 'Z')
lckey = key | 0x20;
else
lckey = key;
for (i=0; i<src->length; i++) {
int ch = src->base[src->size * i + pos];
if (ch == lckey || ch == uckey)
Vector_add(dst, src->base + src->size * i);
}
return dst->length;
}
void
Vector_sublist(const struct Vector *src, struct Vector *dst, const char *tag)
{
int i;
int len;
Vector_clear(dst, src->size);
len = strlen(tag);
for (i=0; i<src->length; i++)
if (len==0 || strncasecmp(src->base + src->size * i, tag, len)==0)
Vector_add(dst, src->base + src->size * i);
}
int
Vector_remove(struct Vector *self, const char *name)
{
int i;
assert(!self->constant);
for (i=0; i<self->length; i++)
if (strcasecmp(self->base + self->size * i, name) == 0) {
strlcpy(self->base + self->size * i,
self->base + self->size * (self->length-1), self->size);
self->length--;
Vector_resize(self, self->length);
return 1;
}
return 0;
}
int
Vector_search(const struct Vector *self, const char *name)
{
int i;
for (i=0; i<self->length; i++)
if (strcasecmp(self->base + self->size * i, name) == 0)
return i;
return -1;
}
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