bool TetGenInterface::readElementsFromStream(std::ifstream &ins)
{
std::string line;
getline (ins, line);
size_t pos_beg (line.find_first_not_of(" "));
size_t n_tets, n_nodes_per_tet;
bool region_attributes;
bool not_read_header (true);
while (!ins.fail() && not_read_header)
{
line = line.substr(pos_beg);
if (line.compare(0,1,"#") == 0)
{
// this line is a comment - skip
getline (ins, line);
pos_beg = line.find_first_not_of(" ");
}
else
// read header line
not_read_header = !parseElementsFileHeader(line,
n_tets,
n_nodes_per_tet,
region_attributes);
}
if (not_read_header)
return false;
if (!parseElements(ins, n_tets, n_nodes_per_tet, region_attributes))
return false;
return true;
}
Instruction::Instruction(string pos1, string pos2, string pos3, string pos4, string pos5)
{
empty = pos1.empty();//if first string is empty, they all are
if (!isEmpty())
{
parseElements(pos1, pos2, pos3, pos4, pos5);
}
}
void Instruction::parseLine(string line, bool hasAddress)
{
const int NUM_ELEMENTS = 6;
string elements[NUM_ELEMENTS]; // each important element of a line
char linechars[512]; // maybe find a new way to work in a line size
strcpy_s(linechars, line.c_str());
int wordstart = 0;
int currentword = 0;
bool nextIsIndex = false; // to differentiate the index in the line
bool nextIsParam2 = false;
bool parsingWord = true; // to keep track if we are parsing through multiple spaces
if (linechars[0] == ' ' || linechars[0] == ';') // special case when line starts with space/comment
{
parsingWord = false;
}
// remove comments and seperate words
int numchars = line.length();
for (int i = 0; i < numchars; i++)
{
// found a comment
if (linechars[i] == ';')
{
break;
}
// found a delimeter
if (linechars[i] == ' ' || linechars[i] == ',' || linechars[i] == '[' || linechars[i] == ']' || linechars[i] == '\t')
{
if (parsingWord)
{
elements[currentword] = line.substr(wordstart, (i)-wordstart);
if (nextIsIndex)
{
elements[currentword] = "[" + elements[currentword];// append a [ to signify an index
nextIsIndex = false;
}
else if (nextIsParam2)
{
elements[currentword] = "," + elements[currentword];// append a , to signify a second parameter
nextIsParam2 = false;
}
parsingWord = false;
++currentword;
if (currentword > NUM_ELEMENTS - 1)
{
break;
}
}
if (linechars[i] == '[')
{
nextIsIndex = true;
}
else if (linechars[i] == ',')
{
nextIsParam2 = true;
}
}
else // found a character
{
line[i] = toupper(line[i]);//convert thi char in the command to uppercase
if (!parsingWord)
{
parsingWord = true;
wordstart = i;
}
}
}
// catches last word of a line
if (parsingWord)
{
elements[currentword] = line.substr(wordstart, (numchars)-wordstart);
if (nextIsIndex)
{
elements[currentword] = "[" + elements[currentword];// append a [ to signify an index
}
else if (nextIsParam2)
{
elements[currentword] = "," + elements[currentword];// append a , to signify a second parameter
}
}
if (elements[0] == "")
{
empty = true;
}
else if (hasAddress)
{
loc = strToInt(elements[0]);
parseElements(elements[1], elements[2], elements[3], elements[4], elements[5]);
}
else
{
parseElements(elements[0], elements[1], elements[2], elements[3], elements[4]);
}
}
Map* parseDoc(char* filename){
xmlDocPtr doc;
xmlNodePtr root_element;
doc = xmlParseFile(filename);
if (doc == NULL) {
fprintf(stderr, "Failed to parse %s\n", filename);
return NULL;
}
root_element = xmlDocGetRootElement(doc);
if (root_element == NULL){
fprintf(stderr, "empty document\n");
xmlFreeDoc(doc);
return NULL;
}
Map* map = malloc(sizeof(Map));
map = parseElements(doc, root_element);
xmlFreeDoc(doc);
return map;
}