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-rw-r--r--source/StringUtils.cpp155
1 files changed, 155 insertions, 0 deletions
diff --git a/source/StringUtils.cpp b/source/StringUtils.cpp
index cb91a4da7..d52b1323f 100644
--- a/source/StringUtils.cpp
+++ b/source/StringUtils.cpp
@@ -196,6 +196,23 @@ AString & StrToUpper(AString & s)
+AString & StrToLower(AString & s)
+{
+ AString::iterator i = s.begin();
+ AString::iterator end = s.end();
+
+ while (i != end)
+ {
+ *i = (char)tolower(*i);
+ ++i;
+ }
+ return s;
+}
+
+
+
+
+
int NoCaseCompare(const AString & s1, const AString & s2)
{
#ifdef _MSC_VER
@@ -658,3 +675,141 @@ AString StripColorCodes(const AString & a_Message)
+
+AString URLDecode(const AString & a_String)
+{
+ AString res;
+ size_t len = a_String.length();
+ res.reserve(len);
+ for (size_t i = 0; i < len; i++)
+ {
+ char ch = a_String[i];
+ if ((ch != '%') || (i > len - 3))
+ {
+ res.push_back(ch);
+ continue;
+ }
+ // Decode the hex value:
+ char hi = a_String[i + 1], lo = a_String[i + 2];
+ if ((hi >= '0') && (hi <= '9'))
+ {
+ hi = hi - '0';
+ }
+ else if ((hi >= 'a') && (hi <= 'f'))
+ {
+ hi = hi - 'a' + 10;
+ }
+ else if ((hi >= 'A') && (hi <= 'F'))
+ {
+ hi = hi - 'F' + 10;
+ }
+ else
+ {
+ res.push_back(ch);
+ continue;
+ }
+ if ((lo >= '0') && (lo <= '9'))
+ {
+ lo = lo - '0';
+ }
+ else if ((lo >= 'a') && (lo <= 'f'))
+ {
+ lo = lo - 'a' + 10;
+ }
+ else if ((lo >= 'A') && (lo <= 'F'))
+ {
+ lo = lo - 'A' + 10;
+ }
+ else
+ {
+ res.push_back(ch);
+ continue;
+ }
+ res.push_back((hi << 4) | lo);
+ i += 2;
+ } // for i - a_String[]
+ return res;
+}
+
+
+
+
+
+AString ReplaceAllCharOccurrences(const AString & a_String, char a_From, char a_To)
+{
+ AString res(a_String);
+ std::replace(res.begin(), res.end(), a_From, a_To);
+ return res;
+}
+
+
+
+
+
+/// Converts one Hex character in a Base64 encoding into the data value
+static inline int UnBase64(char c)
+{
+ if (c >='A' && c <= 'Z')
+ {
+ return c - 'A';
+ }
+ if (c >='a' && c <= 'z')
+ {
+ return c - 'a' + 26;
+ }
+ if (c >= '0' && c <= '9')
+ {
+ return c - '0' + 52;
+ }
+ if (c == '+')
+ {
+ return 62;
+ }
+ if (c == '/')
+ {
+ return 63;
+ }
+ if (c == '=')
+ {
+ return -1;
+ }
+ return -2;
+}
+
+
+
+
+
+AString Base64Decode(const AString & a_Base64String)
+{
+ AString res;
+ size_t i, len = a_Base64String.size();
+ int o, c;
+ res.resize((len * 4) / 3 + 5, 0); // Approximate the upper bound on the result length
+ for (o = 0, i = 0; i < len; i++)
+ {
+ c = UnBase64(a_Base64String[i]);
+ if (c >= 0)
+ {
+ switch (o & 7)
+ {
+ case 0: res[o >> 3] |= (c << 2); break;
+ case 6: res[o >> 3] |= (c >> 4); res[(o >> 3) + 1] |= (c << 4); break;
+ case 4: res[o >> 3] |= (c >> 2); res[(o >> 3) + 1] |= (c << 6); break;
+ case 2: res[o >> 3] |= c; break;
+ }
+ o += 6;
+ }
+ if (c == -1)
+ {
+ // Error while decoding, invalid input. Return as much as we've decoded:
+ res.resize(o >> 3);
+ return res;
+ }
+ }
+ res.resize(o >> 3);
+ return res;}
+
+
+
+