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Recursive programs entry

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Louis 2015-02-24 16:43:17 +01:00
parent b27ca47894
commit db400c28dc
1 changed files with 44 additions and 10 deletions
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54
src/parse.h
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@ -54,26 +54,60 @@ static bool _cut(const string& entry, vector<string>& entries)
entries.push_back(tmp);
tmp.clear();
}
if (i<(entry.size()-1) && entry.at(i+1)=='<')
if (entry.substr(i, 2) == "<<")
{
//get expression
int up = 1;
// found a program begin
i+=2;
tmp = "<<";
tmp="<< ";
// trim leading spaces
while (i<entry.size() && (entry.at(i)==' ' || entry.at(i)=='\t'))
i++;
//get the rest
i++;
while(i<entry.size())
{
tmp+=entry.at(i);
i++;
if (entry.substr(i, 2) == "<<")
{
up++;
i+=2;
tmp+=" << ";
// trim leading spaces
while (i<entry.size() && (entry.at(i)==' ' || entry.at(i)=='\t'))
i++;
}
else if (entry.substr(i, 2) == ">>")
{
up--;
i+=2;
tmp+=" >>";
// trim trailing spaces
while (i<entry.size() && (entry.at(i)==' ' || entry.at(i)=='\t'))
i++;
// found end
if (up == 0)
break;
}
else
{
tmp+=entry[i];
i++;
}
}
while((up--)>0)
{
tmp += " >>";
}
if (tmp.size()>0)
{
entries.push_back(tmp);
tmp.clear();
}
entries.push_back(tmp);
tmp.clear();
}
else
{
// reinject < which is not a program begin
// reinject '<'' which is not a prog begin
tmp = "<";
}
break;