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-rw-r--r--source/StringUtils.cpp70
-rw-r--r--source/StringUtils.h6
2 files changed, 76 insertions, 0 deletions
diff --git a/source/StringUtils.cpp b/source/StringUtils.cpp
index cb91a4da7..d53d25866 100644
--- a/source/StringUtils.cpp
+++ b/source/StringUtils.cpp
@@ -658,3 +658,73 @@ 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;
+}
+
+
+
+
diff --git a/source/StringUtils.h b/source/StringUtils.h
index 211799e91..929e6fd5b 100644
--- a/source/StringUtils.h
+++ b/source/StringUtils.h
@@ -72,6 +72,12 @@ extern AString EscapeString(const AString & a_Message); // tolua_export
/// Removes all control codes used by MC for colors and styles
extern AString StripColorCodes(const AString & a_Message); // tolua_export
+/// URL-Decodes the given string, replacing all "%HH" into the correct characters. Invalid % sequences are left intact
+extern AString URLDecode(const AString & a_String); // Cannot export to Lua automatically - would generated an extra return value
+
+/// Replaces all occurrences of char a_From inside a_String with char a_To.
+extern AString ReplaceAllCharOccurrences(const AString & a_String, char a_From, char a_To); // Needn't export to Lua, since Lua doesn't have chars anyway
+
// If you have any other string helper functions, declare them here