diff options
Diffstat (limited to 'externals/g3dlite/stringutils.cpp')
| -rw-r--r-- | externals/g3dlite/stringutils.cpp | 275 |
1 files changed, 275 insertions, 0 deletions
diff --git a/externals/g3dlite/stringutils.cpp b/externals/g3dlite/stringutils.cpp new file mode 100644 index 00000000000..c3876ebb6a4 --- /dev/null +++ b/externals/g3dlite/stringutils.cpp @@ -0,0 +1,275 @@ +/** + @file stringutils.cpp + + @maintainer Morgan McGuire, http://graphics.cs.williams.edu + + @created 2000-09-09 + @edited 2008-01-10 +*/ + +#include "G3D/platform.h" +#include "G3D/stringutils.h" +#include "G3D/BinaryInput.h" +#include <algorithm> + +namespace G3D { + +#ifdef _MSC_VER + // disable: "C++ exception handler used" +# pragma warning (push) +# pragma warning (disable : 4530) +#endif +#ifdef G3D_WIN32 + const char* NEWLINE = "\r\n"; +#else + const char* NEWLINE = "\n"; + static bool iswspace(int ch) { return (ch==' ' || ch=='\t' || ch=='\n' || ch=='\r'); } +#endif + +void parseCommaSeparated(const std::string s, Array<std::string>& array, bool stripQuotes) { + array.fastClear(); + if (s == "") { + return; + } + + size_t begin = 0; + const char delimiter = ','; + const char quote = '\"'; + do { + size_t end = begin; + // Find the next comma, or the end of the string + bool inQuotes = false; + while ((end < s.length()) && (inQuotes || (s[end] != delimiter))) { + if (s[end] == quote) { + if ((end < s.length() - 2) && (s[end + 1] == quote) && (s[end + 2]) == quote) { + // Skip over the superquote + end += 2; + } + inQuotes = ! inQuotes; + } + ++end; + } + array.append(s.substr(begin, end - begin)); + begin = end + 1; + } while (begin < s.length()); + + if (stripQuotes) { + for (int i = 0; i < array.length(); ++i) { + std::string& t = array[i]; + int L = t.length(); + if ((L > 1) && (t[0] == quote) && (t[L - 1] == quote)) { + if ((L > 6) && (t[1] == quote) && (t[2] == quote) && (t[L - 3] == quote) && (t[L - 2] == quote)) { + // Triple-quote + t = t.substr(3, L - 6); + } else { + // Double-quote + t = t.substr(1, L - 2); + } + } + } + } +} + +bool beginsWith( + const std::string& test, + const std::string& pattern) { + + if (test.size() >= pattern.size()) { + for (int i = 0; i < (int)pattern.size(); ++i) { + if (pattern[i] != test[i]) { + return false; + } + } + return true; + } else { + return false; + } +} + + +bool endsWith( + const std::string& test, + const std::string& pattern) { + + if (test.size() >= pattern.size()) { + int te = test.size() - 1; + int pe = pattern.size() - 1; + for (int i = pattern.size() - 1; i >= 0; --i) { + if (pattern[pe - i] != test[te - i]) { + return false; + } + } + return true; + } else { + return false; + } +} + + +std::string wordWrap( + const std::string& input, + int numCols) { + + std::string output; + size_t c = 0; + int len; + + // Don't make lines less than this length + int minLength = numCols / 4; + size_t inLen = input.size(); + + bool first = true; + while (c < inLen) { + if (first) { + first = false; + } else { + output += NEWLINE; + } + + if ((int)inLen - (int)c - 1 < numCols) { + // The end + output += input.substr(c, inLen - c); + break; + } + + len = numCols; + + // Look at character c + numCols, see if it is a space. + while ((len > minLength) && + (input[c + len] != ' ')) { + len--; + } + + if (len == minLength) { + // Just crop + len = numCols; + + } + + output += input.substr(c, len); + c += len; + if (c < input.size()) { + // Collapse multiple spaces. + while ((input[c] == ' ') && (c < input.size())) { + c++; + } + } + } + + return output; +} + + +int stringCompare( + const std::string& s1, + const std::string& s2) { + + return stringPtrCompare(&s1, &s2); +} + + +int stringPtrCompare( + const std::string* s1, + const std::string* s2) { + + return s1->compare(*s2); +} + + +std::string toUpper(const std::string& x) { + std::string result = x; + std::transform(result.begin(), result.end(), result.begin(), toupper); + return result; +} + + +std::string toLower(const std::string& x) { + std::string result = x; + std::transform(result.begin(), result.end(), result.begin(), tolower); + return result; +} + + +Array<std::string> stringSplit( + const std::string& x, + char splitChar) { + + Array<std::string> out; + + // Pointers to the beginning and end of the substring + const char* start = x.c_str(); + const char* stop = start; + + while ((stop = strchr(start, splitChar))) { + out.append(std::string(start, stop - start)); + start = stop + 1; + } + + // Append the last one + out.append(std::string(start)); + + return out; +} + + +std::string stringJoin( + const Array<std::string>& a, + char joinChar) { + + std::string out; + + for (int i = 0; i < (int)a.size() - 1; ++i) { + out += a[i] + joinChar; + } + + if (a.size() > 0) { + return out + a.last(); + } else { + return out; + } +} + + +std::string stringJoin( + const Array<std::string>& a, + const std::string& joinStr) { + + std::string out; + + for (int i = 0; i < (int)a.size() - 1; ++i) { + out += a[i] + joinStr; + } + + if (a.size() > 0) { + return out + a.last(); + } else { + return out; + } +} + + +std::string trimWhitespace( + const std::string& s) { + + size_t left = 0; + + // Trim from left + while ((left < s.length()) && iswspace(s[left])) { + ++left; + } + + int right = s.length() - 1; + // Trim from right + while ((right > (int)left) && iswspace(s[right])) { + --right; + } + + return s.substr(left, right - left + 1); +} + +}; // namespace + +#undef NEWLINE +#ifdef _MSC_VER +# pragma warning (pop) +#endif |