40 lines
1006 B
Plaintext
40 lines
1006 B
Plaintext
/*
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* Same as stringtok_h.txt, but doesn't (visiably) use C functions.
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*/
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#include <string>
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// The std:: prefix is not used here, for readability, and a line like
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// "using namespace std;" is dangerous to have in a header file.
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template <typename Container>
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void
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stringtok (Container &container, string const &in,
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const char * const delimiters = " \t\n")
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{
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const string::size_type len = in.length();
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string::size_type i = 0;
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while ( i < len )
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{
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// eat leading whitespace
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i = in.find_first_not_of (delimiters, i);
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if (i == string::npos)
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return; // nothing left but white space
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// find the end of the token
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string::size_type j = in.find_first_of (delimiters, i);
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// push token
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if (j == string::npos) {
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container.push_back (in.substr(i));
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return;
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} else
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container.push_back (in.substr(i, j-i));
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// set up for next loop
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i = j + 1;
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}
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}
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