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Field.c
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Field.c
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#include <string.h>
#include "Field.h"
static void Field_Init(Field*);
Field *new_Field(char * tag, int is_control_field) {
Field *This = malloc(sizeof(Field));
//Field This;
This->tag = tag;
This->pos1 = ' ';
This->pos2 = ' ';
This->is_control_field = is_control_field;
This->subfields = NULL;
This->nxt = NULL;
Field_Init(This);
return This;
}
static void Field_Init(Field *This) {
This->add_indicators = Field_add_indicators;
This->add_subfield = Field_add_subfield;
This->as_text = Field_as_text;
}
void Field_add_indicators(Field *This, char indicators1, char indicators2) {
This->pos1 = indicators1;
This->pos2 = indicators2;
}
void Field_add_subfield(Field *This, char subtag, char value[]) {
Subfield* newSubfield = malloc(sizeof(Subfield));
newSubfield->subtag = subtag;
newSubfield->value = value;
newSubfield->nxt = NULL;
if ( This->subfields == NULL ) {
This->subfields = newSubfield;
} else {
Subfield *tmp = This->subfields;
while ( tmp->nxt != NULL ) {
tmp = tmp->nxt;
}
tmp->nxt = newSubfield;
}
}
void Field_as_text(Field *This) {
if ( This->subfields == NULL ) {
printf("Empty field\n");
} else {
printf("%s %c%c _", This->tag, This->pos1, This->pos2);
Subfield *tmp = This->subfields;
if ( This->is_control_field ) {
printf("%s\n", tmp->value);
} else {
printf("%c%s\n", tmp->subtag, tmp->value);
while ( tmp->nxt != NULL ) {
tmp = tmp->nxt;
printf(" _%c%s\n", tmp->subtag, tmp->value);
}
}
}
}
int Field_is_controlfield(char * tagno) {
char * bytag = "001";
if ( strcmp(tagno, bytag)==0 ) {
return 1;
} else {
return 0;
}
}