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#include <QvInput.h>
#include <QvReadError.h>
#include <QvField.h>
#include <QvFieldData.h>
#include <QvUnknownNode.h>
#define OPEN_BRACE_CHAR '['
#define CLOSE_BRACE_CHAR ']'
#define VALUE_SEPARATOR_CHAR ','
struct QvFieldEntry {
QvName name;
long offset;
};
struct QvEnumEntry {
QvName typeName;
int num;
int arraySize;
int *vals;
QvName *names;
QvEnumEntry(const QvName &name);
~QvEnumEntry();
static int growSize;
};
int QvEnumEntry::growSize = 6;
QvEnumEntry::QvEnumEntry(const QvName &name)
{
typeName = name;
num = 0;
arraySize = growSize;
vals = new int[arraySize];
names = new QvName[arraySize];
}
QvEnumEntry::~QvEnumEntry()
{
delete [] vals;
delete [] names;
}
QvFieldData::~QvFieldData()
{
struct QvFieldEntry *tmpField;
struct QvEnumEntry *tmpEnum;
for (int i=0; i<fields.getLength(); i++) {
tmpField = (struct QvFieldEntry *)fields[i];
delete tmpField;
}
for (int j=0; j<enums.getLength(); j++) {
tmpEnum = (struct QvEnumEntry *)enums[j];
delete tmpEnum;
}
}
void
QvFieldData::addField(QvNode *defobj, const char *fieldName,
const QvField *field)
{
struct QvFieldEntry *newField = new struct QvFieldEntry;
newField->name = fieldName;
newField->offset = (const char *) field - (const char *) defobj;
fields.append((void *) newField);
}
const QvName &
QvFieldData::getFieldName(int index) const
{
return ((QvFieldEntry *) fields[index])->name;
}
QvField *
QvFieldData::getField(const QvNode *object, int index) const
{
return (QvField *) ((char *) object +
((QvFieldEntry *) fields[index])->offset);
}
#include <ctype.h>
static QvName
stripWhite(const char *name)
{
int firstchar = -1;
int lastchar = -1;
int lastwhite = -1;
int i =0;
for ( i=0; name[i]; i++) {
if (isspace(name[i]))
lastwhite = i;
else {
if (firstchar == -1) firstchar = i;
lastchar = i;
}
}
if (lastchar > lastwhite)
return QvName(&name[firstchar]);
char buf[500];
int b;
for (b=0, i=firstchar; i<=lastchar; i++, b++)
buf[b] = name[i];
buf[b] = 0;
return QvName(buf);
}
void
QvFieldData::addEnumValue(const char *typeNameArg,
const char *valNameArg, int val)
{
struct QvEnumEntry *e = NULL;
QvName typeName = stripWhite(typeNameArg);
QvName valName = stripWhite(valNameArg);
for (int i=0; i<enums.getLength(); i++) {
e = (struct QvEnumEntry *) enums[i];
if (e->typeName == typeName)
break;
else
e = NULL;
}
if (e == NULL) {
e = new QvEnumEntry(typeName);
enums.append((void*) e);
}
if (e->num == e->arraySize) {
e->arraySize += QvEnumEntry::growSize;
int *ovals = e->vals;
QvName *onames = e->names;
e->vals = new int[e->arraySize];
e->names = new QvName[e->arraySize];
for (int i=0; i<e->num; i++) {
e->vals[i] = ovals[i];
e->names[i] = onames[i];
}
delete [] ovals;
delete [] onames;
}
e->vals[e->num] = val;
e->names[e->num] = valName;
e->num++;
}
void
QvFieldData::getEnumData(const char *typeNameArg, int &num,
const int *&vals, const QvName *&names)
{
QvName typeName = stripWhite(typeNameArg);
for (int i=0; i<enums.getLength(); i++) {
struct QvEnumEntry *e = (struct QvEnumEntry *) enums[i];
if (e->typeName == typeName) {
num = e->num;
vals = e->vals;
names = e->names;
return;
}
}
num = 0;
vals = NULL;
names = NULL;
}
QvBool
QvFieldData::readFieldTypes(QvInput *in, QvNode *object)
{
QvBool gotChar;
QvName fieldType, fieldName;
char c;
if (! ((gotChar = in->read(c)) || c != OPEN_BRACE_CHAR))
return FALSE;
if (in->read(c) && c == CLOSE_BRACE_CHAR)
return TRUE;
in->putBack(c);
QvBool alreadyHasFields = (object->isBuiltIn || getNumFields() != 0);
while (TRUE) {
if (! in->read(fieldType, TRUE) || ! in->read(fieldName, TRUE))
return FALSE;
if (! alreadyHasFields) {
QvField *fld = QvField::createInstanceFromName(fieldType);
fld->setContainer(object);
addField(object, fieldName.getString(), fld);
}
if (! in->read(c))
return FALSE;
if (c == VALUE_SEPARATOR_CHAR) {
if (in->read(c)) {
if (c == CLOSE_BRACE_CHAR)
return TRUE;
else
in->putBack(c);
}
}
else if (c == CLOSE_BRACE_CHAR)
return TRUE;
else
return FALSE;
}
}
QvBool
QvFieldData::read(QvInput *in, QvNode *object,
QvBool errorOnUnknownField) const
{
QvName fieldName;
if (fields.getLength() == 0) return TRUE;
while (TRUE) {
if (! in->read(fieldName, TRUE) || ! fieldName)
return TRUE;
QvBool foundName;
if (! read(in, object, fieldName, foundName))
return FALSE;
if (!foundName) {
if (errorOnUnknownField) {
QvReadError::post(in, "Unknown field \"%s\"",
fieldName.getString());
return FALSE;
}
else {
in->putBack(fieldName.getString());
return TRUE;
}
}
}
}
QvBool
QvFieldData::read(QvInput *in, QvNode *object,
const QvName &fieldName, QvBool &foundName) const
{
int i = 0;
for ( i = 0; i < fields.getLength(); i++) {
QvName fni = getFieldName(i);
if (fieldName == fni) {
if (! getField(object, i)->read(in, fieldName))
return FALSE;
break;
}
}
if (i == fields.getLength())
foundName = FALSE;
else foundName = TRUE;
return TRUE;
}
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