Simple string parsing with C++
- by Andreas Brinck
I've been using C++ for quite a long time now but nevertheless I tend to fall back on scanf when I have to parse simple text files. For example given a config like this (also assuming that the order of the fields could vary):
foo: [3 4 5]
baz: 3.0
I would write something like:
char line[SOME_SIZE];
while (fgets(line, SOME_SIZE, file)) {
int x, y, z;
if (3 == sscanf(line, "foo: [%d %d %d]", &x, &y, &z)) {
continue;
}
float w;
if (1 == sscanf(line, "baz: %f", &w)) {
continue;
}
}
What's the most concise way to achieve this in C++? Whenever I try I end up with a lot of scaffolding code.
