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#include "document.h"
#include "symbol.h"
#include <string.h>
#include "internal.h"
/****************************************************************************
*
* DocField
*
****************************************************************************/
DocField *df_new(Symbol name)
{
DocField *df = ALLOC(DocField);
df->name = name;
df->size = 0;
df->capa = DF_INIT_CAPA;
df->data = ALLOC_N(char *, df->capa);
df->lengths = ALLOC_N(int, df->capa);
df->destroy_data = false;
df->boost = 1.0;
return df;
}
DocField *df_add_data_len(DocField *df, char *data, int len)
{
if (df->size >= df->capa) {
df->capa <<= 2;
REALLOC_N(df->data, char *, df->capa);
REALLOC_N(df->lengths, int, df->capa);
}
df->data[df->size] = data;
df->lengths[df->size] = len;
df->size++;
return df;
}
DocField *df_add_data(DocField *df, char *data)
{
return df_add_data_len(df, data, strlen(data));
}
void df_destroy(DocField *df)
{
if (df->destroy_data) {
int i;
for (i = 0; i < df->size; i++) {
free(df->data[i]);
}
}
free(df->data);
free(df->lengths);
free(df);
}
/*
* Format for one item is: name: "data"
* for more items : name: ["data", "data", "data"]
*/
char *df_to_s(DocField *df)
{
#define APPEND(dst, src) ((dst)[0] = (src)[0], 1)
#define APPEND2(dst, src) (APPEND(dst, src), APPEND(dst+1, src+1), 2)
int i, len = 0, namelen = sym_len(df->name);
char *str, *s;
for (i = 0; i < df->size; i++) {
len += df->lengths[i] + 4;
}
s = str = ALLOC_N(char, namelen + len + 5);
memcpy(s, df->name, namelen);
s += namelen;
s += APPEND2(s, ": ");
if (df->size > 1) {
s += APPEND(s, "[");
}
for (i = 0; i < df->size; i++) {
if (i != 0) {
s += APPEND2(s, ", ");
}
s += APPEND(s, "\"");
memcpy(s, df->data[i], df->lengths[i]);
s += df->lengths[i];
s += APPEND(s, "\"");
}
if (df->size > 1) {
s += APPEND(s, "]");
}
*s = 0;
return str;
}
/****************************************************************************
*
* Document
*
****************************************************************************/
Document *doc_new()
{
Document *doc = ALLOC(Document);
doc->field_dict = h_new_ptr((free_ft)&df_destroy);
doc->size = 0;
doc->capa = DOC_INIT_CAPA;
doc->fields = ALLOC_N(DocField *, doc->capa);
doc->boost = 1.0;
return doc;
}
DocField *doc_add_field(Document *doc, DocField *df)
{
if (!h_set_safe(doc->field_dict, df->name, df)) {
RAISE(EXCEPTION, "tried to add %s field which alread existed\n",
S(df->name));
}
if (doc->size >= doc->capa) {
doc->capa <<= 1;
REALLOC_N(doc->fields, DocField *, doc->capa);
}
doc->fields[doc->size] = df;
doc->size++;
return df;
}
DocField *doc_get_field(Document *doc, Symbol name)
{
return (DocField *)h_get(doc->field_dict, name);
}
char *doc_to_s(Document *doc)
{
int i;
int len = 0;
char **fields = ALLOC_N(char *, doc->size);
char *buf, *s;
for (i = 0; i < doc->size; i++) {
fields[i] = df_to_s(doc->fields[i]);
len += strlen(fields[i]) + 5;
}
s = buf = ALLOC_N(char, len + 12);
s += sprintf(buf, "Document [\n");
for (i = 0; i < doc->size; i++) {
s += sprintf(s, " =>%s\n", fields[i]);
free(fields[i]);
}
free(fields);
return buf;
}
void doc_destroy(Document *doc)
{
h_destroy(doc->field_dict);
free(doc->fields);
free(doc);
}
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