62 lines
1.7 KiB
Text
62 lines
1.7 KiB
Text
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/**
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* PANDA 3D SOFTWARE
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* Copyright (c) Carnegie Mellon University. All rights reserved.
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*
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* All use of this software is subject to the terms of the revised BSD
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* license. You should have received a copy of this license along
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* with this source code in a file named "LICENSE."
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*
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* @file indent.I
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* @author drose
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* @date 1999-02-15
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*/
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/**
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* Writes a list of things to the indicated output stream, with a space
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* separating each item. One or more lines will be written, and the lines
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* will automatically be broken such that no line exceeds max_col columns if
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* possible.
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*/
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template<class InputIterator>
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void
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write_long_list(std::ostream &out, int indent_level,
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InputIterator first, InputIterator last,
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std::string first_prefix, std::string later_prefix,
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int max_col) {
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if (later_prefix.empty()) {
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later_prefix = first_prefix;
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}
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if (first != last) {
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// We have to use an intermediate strstream object so we can count the
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// number of characters the item will have when it is output.
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std::ostringstream item;
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item << *first;
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std::string str = item.str();
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indent(out, indent_level) << first_prefix << str;
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int col = indent_level + (int)(first_prefix.length() + str.length());
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++first;
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while (first != last) {
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std::ostringstream item;
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item << *first;
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std::string str = item.str();
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col += 1 + str.length();
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if (col > max_col) {
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out << "\n";
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indent(out, indent_level) << later_prefix << str;
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col = indent_level + (int)(later_prefix.length() + str.length());
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} else {
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out << " " << str;
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}
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++first;
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}
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out << "\n";
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}
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}
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