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Code Issues Releases Wiki Activity

better error information from arb

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This commit is contained in:
Zeno Rogue 2020-04-16 20:59:34 +02:00
parent 75f2a84333
commit 45bffedfbb
2 changed files with 43 additions and 16 deletions
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40
arbitrile.cpp
View File

@ -78,7 +78,7 @@ void shape::build_from_angles_edges() {
bool correct_index(int index, int size) { return index >= 0 && index < size; }
template<class T> bool correct_index(int index, const T& v) { return correct_index(index, isize(v)); }
template<class T> void verify_index(int index, const T& v) { if(!correct_index(index, v)) throw hr_parse_exception("bad index"); }
template<class T> void verify_index(int index, const T& v, exp_parser& ep) { if(!correct_index(index, v)) throw hr_parse_exception("bad index: " + its(index) + " at " + ep.where()); }
string unnamed = "unnamed";
@ -102,7 +102,7 @@ EX void load(const string& fname) {
int ai;
if(ep.next() == ')') ai = isize(c.shapes)-1;
else ai = ep.iparse();
verify_index(ai, c.shapes);
verify_index(ai, c.shapes, ep);
c.shapes[ai].flags |= f;
ep.force_eat(")");
};
@ -171,7 +171,12 @@ EX void load(const string& fname) {
else if(ep.eat(")")) break;
else throw hr_parse_exception("expecting , or )");
}
cc.build_from_angles_edges();
try {
cc.build_from_angles_edges();
}
catch(hr_parse_exception& ex) {
throw hr_parse_exception(ex.s + ep.where());
}
cc.connections.resize(cc.size());
for(int i=0; i<isize(cc.connections); i++)
cc.connections[i] = make_tuple(cc.id, i, false);
@ -191,8 +196,15 @@ EX void load(const string& fname) {
else if(ep.eat(")")) break;
else throw hr_parse_exception("expecting , or )");
}
cc.build_from_angles_edges();
try {
cc.build_from_angles_edges();
}
catch(hr_parse_exception& ex) {
throw hr_parse_exception(ex.s + ep.where());
}
cc.connections.resize(cc.size());
for(int i=0; i<isize(cc.connections); i++)
cc.connections[i] = make_tuple(cc.id, i, false);
}
else if(ep.eat("conway(\"")) {
string s = "";
@ -201,7 +213,7 @@ EX void load(const string& fname) {
if(ep.eat("(")) m = 0;
else if(ep.eat("[")) m = 1;
else if(ep.eat("\"")) break;
else throw hr_parse_exception("cannot parse Conway notation");
else throw hr_parse_exception("cannot parse Conway notation, " + ep.where());
int ai = 0;
int as = ep.iparse();
@ -221,18 +233,18 @@ EX void load(const string& fname) {
ep.force_eat(")");
}
else if(ep.eat("c(")) {
int ai = ep.iparse(); verify_index(ai, c.shapes); ep.force_eat(",");
int as = ep.iparse(); verify_index(as, c.shapes[ai]); ep.force_eat(",");
int bi = ep.iparse(); verify_index(bi, c.shapes); ep.force_eat(",");
int bs = ep.iparse(); verify_index(bs, c.shapes[bi]); ep.force_eat(",");
int ai = ep.iparse(); verify_index(ai, c.shapes, ep); ep.force_eat(",");
int as = ep.iparse(); verify_index(as, c.shapes[ai], ep); ep.force_eat(",");
int bi = ep.iparse(); verify_index(bi, c.shapes, ep); ep.force_eat(",");
int bs = ep.iparse(); verify_index(bs, c.shapes[bi], ep); ep.force_eat(",");
int m = ep.iparse(); ep.force_eat(")");
c.shapes[ai].connections[as] = make_tuple(bi, bs, m);
c.shapes[bi].connections[bs] = make_tuple(ai, as, m);
}
else if(ep.eat("subline(")) {
int ai = ep.iparse(); verify_index(ai, c.shapes); ep.force_eat(",");
int as = ep.iparse(); verify_index(as, c.shapes[ai]); ep.force_eat(",");
int bs = ep.iparse(); verify_index(bs, c.shapes[ai]); ep.force_eat(")");
int ai = ep.iparse(); verify_index(ai, c.shapes, ep); ep.force_eat(",");
int as = ep.iparse(); verify_index(as, c.shapes[ai], ep); ep.force_eat(",");
int bs = ep.iparse(); verify_index(bs, c.shapes[ai], ep); ep.force_eat(")");
c.shapes[ai].sublines.emplace_back(as, bs);
}
else if(ep.eat("sublines(")) {
@ -252,7 +264,7 @@ EX void load(const string& fname) {
}
}
}
else throw hr_parse_exception("expecting command");
else throw hr_parse_exception("expecting command, " + ep.where());
}
}
@ -520,6 +532,8 @@ EX void choose() {
catch(hr_parse_exception& ex) {
println(hlog, "failed: ", ex.s);
set_geometry(gNormal);
start_game();
addMessage("failed: " + ex.s);
}
start_game();
return true;

19
util.cpp
View File

@ -134,7 +134,13 @@ struct hr_parse_exception : hr_exception {
struct exp_parser {
string s;
int at;
exp_parser() { at = 0; }
int line_number, last_line;
exp_parser() { at = 0; line_number = 1; last_line = 0; }
string where() {
if(s.find('\n')) return "(line " + its(line_number) + ", pos " + its(at-last_line) + ")";
else return "(pos " + its(at) + ")";
}
map<string, cld> extra_params;
@ -168,14 +174,21 @@ struct exp_parser {
void force_eat(const char *c) {
skip_white();
if(!eat(c)) throw hr_parse_exception("expected: " + string(c));
if(!eat(c)) throw hr_parse_exception("expected: " + string(c) + " at " + where());
}
};
#endif
void exp_parser::skip_white() {
while(next() == ' ' || next() == '\n' || next() == '\r' || next() == '\t') at++;
while(next() == ' ' || next() == '\n' || next() == '\r' || next() == '\t') {
if(next() == '\r') last_line++;
if(next() == '\n') {
println(hlog, "new line at ", at);
line_number++, last_line = at;
}
at++;
}
}
string exp_parser::next_token() {