int ejsXMLToString(Ejs *ejs, MprBuf *buf, EjsXML *node, int indentLevel) { EjsXML *xml, *child, *attribute, *elt; int sawElements, next; if (node->obj.var.visited) { return 0; } node->obj.var.visited = 1; if (node->kind == EJS_XML_LIST) { for (next = 0; (elt = mprGetNextItem(node->elements, &next)) != 0; ) { ejsXMLToString(ejs, buf, elt, indentLevel); } return 0; } mprAssert(ejsIsXML(node)); xml = (EjsXML*) node; switch (xml->kind) { case EJS_XML_ELEMENT: /* * XML object is complex (has elements) so return full XML content. */ if (indentLevel > 0) { mprPutCharToBuf(buf, '\n'); } indent(buf, indentLevel); mprPutFmtToBuf(buf, "<%s", xml->qname.name); if (xml->attributes) { for (next = 0; (attribute = mprGetNextItem(xml->attributes, &next)) != 0; ) { mprPutFmtToBuf(buf, " %s=\"%s\"", attribute->qname.name, attribute->value); } } sawElements = 0; if (xml->elements) { mprPutStringToBuf(buf, ">"); for (next = 0; (child = mprGetNextItem(xml->elements, &next)) != 0; ) { if (child->kind != EJS_XML_TEXT) { sawElements++; } /* Recurse */ if (ejsXMLToString(ejs, buf, child, indentLevel < 0 ? -1 : indentLevel + 1) < 0) { return -1; } } if (sawElements && indentLevel >= 0) { mprPutCharToBuf(buf, '\n'); indent(buf, indentLevel); } mprPutFmtToBuf(buf, "</%s>", xml->qname.name); } else { /* Solo */ mprPutStringToBuf(buf, "/>"); } break; case EJS_XML_COMMENT: mprPutCharToBuf(buf, '\n'); indent(buf, indentLevel); mprPutFmtToBuf(buf, "<!--%s -->", xml->value); break; case EJS_XML_ATTRIBUTE: /* * Only here when converting solo attributes to a string */ mprPutStringToBuf(buf, xml->value); break; case EJS_XML_TEXT: mprPutStringToBuf(buf, xml->value); break; } node->obj.var.visited = 0; return 0; }
/* Set a property attribute by name. */ static int setXmlPropertyAttributeByName(Ejs *ejs, EjsXML *xml, EjsName qname, EjsObj *value) { EjsXML *elt, *attribute, *xvalue, *lastElt; EjsString *sv; EjsName qn; wchar *str; int index, last, next; /* Attribute. If the value is an XML list, convert to a space separated string */ xvalue = (EjsXML*) value; if (ejsIsXML(ejs, xvalue) && xvalue->kind == EJS_XML_LIST) { str = 0; for (next = 0; (elt = mprGetNextItem(xvalue->elements, &next)) != 0; ) { sv = (EjsString*) ejsCast(ejs, (EjsObj*) elt, String); str = mrejoin(str, NULL, " ", sv->value, NULL); } value = (EjsObj*) ejsCreateString(ejs, str, -1); } else { value = ejsCast(ejs, value, String); } assert(ejsIs(ejs, value, String)); /* Find the first attribute that matches. Delete all other attributes of the same name. */ index = 0; if (xml->attributes) { lastElt = 0; for (last = -1, index = -1; (elt = mprGetPrevItem(xml->attributes, &index)) != 0; ) { assert(qname.name->value[0] == '@'); if (wcmp(elt->qname.name->value, &qname.name->value[1]) == 0) { if (last >= 0) { mprRemoveItemAtPos(xml->attributes, last); } last = index; lastElt = elt; } } if (lastElt) { /* Found a match. So replace its value */ lastElt->value = (EjsString*) value; return last; } else { index = mprGetListLength(xml->attributes); } } // TODO - namespace work to do here /* Not found. Create a new attribute node */ assert(ejsIs(ejs, value, String)); qn.space = NULL; qn.name = ejsSubstring(ejs, qname.name, 1, -1); attribute = ejsCreateXML(ejs, EJS_XML_ATTRIBUTE, qn, xml, (EjsString*) value); if (xml->attributes == 0) { xml->attributes = mprCreateList(-1, 0); } mprSetItem(xml->attributes, index, attribute); return index; }
/* Set a property by name There are 7 kinds of qname's: prop, @att, [prop], *, @*, .name, .@name */ static int setXmlPropertyByName(Ejs *ejs, EjsXML *xml, EjsName qname, EjsObj *value) { EjsXML *elt, *xvalue, *rp, *lastElt; EjsObj *originalValue; int index, last; last = 0; lastElt = 0; if (isdigit((uchar) qname.name->value[0]) && allDigitsForXml(qname.name)) { ejsThrowTypeError(ejs, "Integer indicies for set are not allowed"); return EJS_ERR; } if (xml->kind != EJS_XML_ELEMENT) { // TODO spec requires this -- but why? -- surely throw? return 0; } /* Massage the value type. */ originalValue = value; xvalue = (EjsXML*) value; if (ejsIsXML(ejs, xvalue)) { if (xvalue->kind == EJS_XML_LIST) { value = cloneXml(ejs, xvalue, 1); } else if (xvalue->kind == EJS_XML_TEXT || xvalue->kind == EJS_XML_ATTRIBUTE) { value = ejsCast(ejs, originalValue, String); } else { value = cloneXml(ejs, xvalue, 1); } } else { value = ejsCast(ejs, value, String); } if (qname.name->value[0] == '@') { return setXmlPropertyAttributeByName(ejs, xml, qname, value); } /* Delete redundant elements by the same name. */ if (xml->elements) { for (last = -1, index = -1; (elt = mprGetPrevItem(xml->elements, &index)) != 0; ) { if (qname.name->value[0] == '*' || (elt->kind == EJS_XML_ELEMENT && elt->qname.name == qname.name)) { /* Must remove all redundant elements of the same name except the first one */ if (last >= 0) { rp = mprGetItem(xml->elements, last); rp->parent = 0; mprRemoveItemAtPos(xml->elements, last); } last = index; lastElt = elt; } } } if (xml->elements == 0) { // TODO - need routine to do this centrally so we can control the default number of elements in the list? xml->elements = mprCreateList(-1, 0); } elt = lastElt; index = last; if (qname.name->value[0] == '*') { /* Special case when called from XMLList to update the value of an element */ xml = createValueNode(ejs, xml, value); } else if (elt == 0) { /* Not found. New node required. */ elt = ejsCreateXML(ejs, EJS_XML_ELEMENT, qname, xml, NULL); if (elt == 0) { return 0; } index = mprGetListLength(xml->elements); xml = ejsAppendToXML(ejs, xml, createValueNode(ejs, elt, value)); } else { /* Update existing element. */ xml = ejsSetXMLElement(ejs, xml, index, createValueNode(ejs, elt, value)); } if (xml == 0) { return EJS_ERR; } return index; }
static EjsXML *createElement(Ejs *ejs, EjsXML *list, EjsXML *targetObject, EjsName qname, EjsObj *value) { EjsXML *elt, *last, *attList; int index; int j; if (targetObject && ejsIsXML(ejs, targetObject) && targetObject->kind == EJS_XML_LIST) { /* If the target is a list it must have 1 element. So switch to it. TODO - could we get resolve to do this? */ if (mprGetListLength(targetObject->elements) != 1) { /* Spec says so - TODO why no error? */ return 0; } targetObject = mprGetFirstItem(targetObject->elements); } /* Return if the target object is not an XML element */ if (!ejsIsXML(ejs, targetObject) || targetObject->kind != EJS_XML_ELEMENT) { /* Spec says so - TODO why no error? */ return 0; } elt = ejsCreateXML(ejs, EJS_XML_ELEMENT, list->targetProperty, targetObject, NULL); if (list->targetProperty.name && list->targetProperty.name->value[0] == '@') { elt->kind = EJS_XML_ATTRIBUTE; attList = ejsGetPropertyByName(ejs, (EjsObj*) targetObject, list->targetProperty); if (attList && mprGetListLength(attList->elements) > 0) { /* Spec says so. But this surely means you can't update an attribute? */ return 0; } } else if (list->targetProperty.name == NULL || qname.name->value[0] == '*') { elt->kind = EJS_XML_TEXT; elt->qname.name = 0; } index = mprGetListLength(list->elements); if (elt->kind != EJS_XML_ATTRIBUTE) { if (targetObject) { if (index > 0) { /* Find the place of the last list item in the resolved target object. */ last = mprGetItem(list->elements, index - 1); j = mprLookupItem(targetObject->elements, last); } else { j = -1; } if (j < 0) { j = mprGetListLength(targetObject->elements) - 1; } // TODO - really need to wrap this ejsInsertXML(EjsXML *xml, int index, EjsXML *node) if (targetObject->elements == 0) { targetObject->elements = mprCreateList(-1, 0); } /* Insert into the target object */ mprInsertItemAtPos(targetObject->elements, j + 1, elt); } if (ejsIsXML(ejs, value)) { if (((EjsXML*) value)->kind == EJS_XML_LIST) { elt->qname = ((EjsXML*) value)->targetProperty; } else { elt->qname = ((EjsXML*) value)->qname; } } /* Insert into the XML list */ mprSetItem(list->elements, index, elt); } return (EjsXML*) mprGetItem(list->elements, index); }