assimp/code/Ogre/OgreParsingUtils.h

/*
Open Asset Import Library (assimp)
----------------------------------------------------------------------

Copyright (c) 2006-2020, assimp team


All rights reserved.

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  copyright notice, this list of conditions and the
  following disclaimer.

* Redistributions in binary form must reproduce the above
  copyright notice, this list of conditions and the
  following disclaimer in the documentation and/or other
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* Neither the name of the assimp team, nor the names of its
  contributors may be used to endorse or promote products
  derived from this software without specific prior
  written permission of the assimp team.

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"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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*/

#ifndef AI_OGREPARSINGUTILS_H_INC
#define AI_OGREPARSINGUTILS_H_INC

#ifndef ASSIMP_BUILD_NO_OGRE_IMPORTER

#include <assimp/ParsingUtils.h>
#include <functional>
#include <algorithm>
#include <stdint.h>
#include <sstream>
#include <cctype>

namespace Assimp {
namespace Ogre {

/// Returns a lower cased copy of @s.
static AI_FORCE_INLINE
std::string ToLower(std::string s)
{
    std::transform(s.begin(), s.end(), s.begin(), ::tolower);
    return s;
}

/// Returns if @c s ends with @c suffix. If @c caseSensitive is false, both strings will be lower cased before matching.
static AI_FORCE_INLINE
bool EndsWith(const std::string &s, const std::string &suffix, bool caseSensitive = true) {
    if (s.empty() || suffix.empty()) {
        return false;
    } else if (s.length() < suffix.length()) {
        return false;
    }

    if (!caseSensitive) {
        return EndsWith(ToLower(s), ToLower(suffix), true);
    }

    size_t len = suffix.length();
    std::string sSuffix = s.substr(s.length()-len, len);

    return (ASSIMP_stricmp(sSuffix, suffix) == 0);
}

// Below trim functions adapted from http://stackoverflow.com/questions/216823/whats-the-best-way-to-trim-stdstring

/// Trim from start
static AI_FORCE_INLINE
std::string &TrimLeft(std::string &s, bool newlines = true) {
    if (!newlines) {
        s.erase(s.begin(), std::find_if(s.begin(), s.end(), [](char c) { return !Assimp::IsSpace<char>(c); }));
    } else {
        s.erase(s.begin(), std::find_if(s.begin(), s.end(), [](char c) { return !Assimp::IsSpaceOrNewLine<char>(c); }));
    }
    return s;
}

/// Trim from end
static AI_FORCE_INLINE
std::string &TrimRight(std::string &s, bool newlines = true) {
    if (!newlines) {
        s.erase(std::find_if(s.rbegin(), s.rend(), [](char c) { return !Assimp::IsSpace<char>(c); }).base(),s.end());
    } else {
        s.erase(s.begin(), std::find_if(s.begin(), s.end(), [](char c) { return !Assimp::IsSpaceOrNewLine<char>(c); }));
    }
    return s;
}

/// Trim from both ends
static AI_FORCE_INLINE
std::string &Trim(std::string &s, bool newlines = true) {
    return TrimLeft(TrimRight(s, newlines), newlines);
}

/// Skips a line from current @ss position until a newline. Returns the skipped part.
static AI_FORCE_INLINE
std::string SkipLine(std::stringstream &ss) {
    std::string skipped;
    getline(ss, skipped);
    return skipped;
}

/// Skips a line and reads next element from @c ss to @c nextElement.
/** @return Skipped line content until newline. */
static AI_FORCE_INLINE
std::string NextAfterNewLine(std::stringstream &ss, std::string &nextElement) {
    std::string skipped = SkipLine(ss);
    ss >> nextElement;
    return skipped;
}

} // Ogre
} // Assimp

#endif // ASSIMP_BUILD_NO_OGRE_IMPORTER
#endif // AI_OGREPARSINGUTILS_H_INC