[692] | 1 | #include <vrmllib/file.h>
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| 2 |
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| 3 | #include <stdexcept>
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| 4 | #include <stack>
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| 5 | #include <algorithm>
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| 6 |
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| 7 | #include <vrmllib/nodes.h>
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| 8 | #include "commentstream.h"
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| 9 |
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| 10 | namespace vrmllib {
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| 11 | namespace {
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| 12 |
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| 13 | void set_parent(std::vector<node *> &c, grouping_node *p)
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| 14 | {
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| 15 | for (std::vector<node *>::iterator i=c.begin(); i!=c.end(); ++i) {
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| 16 | if (!*i)
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| 17 | continue;
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| 18 | (*i)->parent = p;
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| 19 | if (grouping_node *n = dynamic_cast<grouping_node *>(*i))
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| 20 | set_parent(n->children, n);
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| 21 | }
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| 22 | }
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| 23 |
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| 24 | } // anonymous namespace
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| 25 |
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| 26 | file::file(std::istream &sarg)
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| 27 | {
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| 28 | utillib::commentstream s(sarg, '#', '\n');
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| 29 | std::ios::iostate exceptions = sarg.exceptions();
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| 30 | sarg.exceptions(std::ios::goodbit);
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| 31 |
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| 32 | try {
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| 33 | for (;;) {
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| 34 | char t;
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| 35 | s >> t;
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| 36 | if (s)
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| 37 | s.putback(t);
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| 38 | else if (s.eof())
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| 39 | break;
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| 40 | else
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| 41 | throw std::runtime_error(
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| 42 | "parse error: unexpected end of file");
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| 43 |
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| 44 | s.exceptions(std::ios::badbit
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| 45 | | std::ios::failbit
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| 46 | | std::ios::eofbit);
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| 47 |
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| 48 | std::string word;
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| 49 | s >> word;
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| 50 |
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| 51 | if (word == "ROUTE") {
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| 52 | s >> word;
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| 53 | s >> word; // TO
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| 54 | s >> word;
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| 55 | } else {
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| 56 | node *n = node::parse_node_xdef(s, *this, word);
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| 57 | if (n)
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| 58 | roots.push_back(n);
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| 59 | }
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| 60 |
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| 61 | s.exceptions(std::ios::goodbit);
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| 62 | }
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| 63 |
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| 64 | } catch (std::ios::failure &e) {
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| 65 | sarg.exceptions(exceptions);
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| 66 | throw std::runtime_error(std::string("parse error: stream failure: ") + e.what());
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| 67 | } catch (...) {
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| 68 | sarg.exceptions(exceptions);
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| 69 | throw;
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| 70 | }
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| 71 | sarg.exceptions(exceptions);
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| 72 |
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| 73 | set_parent(roots, 0);
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| 74 | }
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| 75 |
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| 76 | namespace {
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| 77 | inline void delnode(node *n) { delete n; }
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| 78 | }
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| 79 |
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| 80 | file::~file()
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| 81 | {
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| 82 | std::for_each(nodes.begin(), nodes.end(), delnode);
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| 83 | }
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| 84 |
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| 85 | } // namespace vrmllib
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