Fix c_unescape

[libs/core.git] / source / utils.cpp

diff --git a/source/utils.cpp b/source/utils.cpp
index 0318e994e22a6f66eea7a2f03e53660435445b37..2232527dbdbab79696a3f6011935a690f3201bae 100644 (file)
--- a/source/utils.cpp
+++ b/source/utils.cpp
@@ -162,7 +162,7 @@ string c_unescape(const std::string &str)
        string result;
        for(string::const_iterator i=str.begin(); i!=str.end(); ++i)
        {
-               if(numeric_type==1)
+               if(numeric_type==16)
                {
                        unsigned digit=0;
                        if(*i>='0' && *i<='9')
@@ -182,7 +182,7 @@ string c_unescape(const std::string &str)
                                numeric_type=0;
                        }
                }
-               else if(numeric_type==2)
+               else if(numeric_type==8)
                {
                        unsigned digit=0;
                        if(*i>='0' && *i<='7')
@@ -190,12 +190,9 @@ string c_unescape(const std::string &str)
                        else
                                throw InvalidParameterValue("Invalid octal digit");
 
-                       if(numeric_pos==0 && digit>3)
-                               throw InvalidParameterValue("Octal escape sequence must start with [0-3]");
-
                        numeric_value=(numeric_value<<3 | digit);
                        ++numeric_pos;
-                       if(numeric_pos==2)
+                       if(numeric_pos==3)
                        {
                                result+=numeric_value;
                                numeric_type=0;
@@ -203,12 +200,18 @@ string c_unescape(const std::string &str)
                }
                else if(escape)
                {
-                       if(*i=='x' || (*i>='0' && *i<='7'))
+                       if(*i=='x')
                        {
-                               numeric_type=(*i=='x' ? 1 : 2);
+                               numeric_type=16;
                                numeric_pos=0;
                                numeric_value=0;
                        }
+                       else if(*i>='0' && *i<='3')
+                       {
+                               numeric_type=8;
+                               numeric_pos=1;
+                               numeric_value=*i-'0';
+                       }
                        else if(*i=='n')
                                result+='\n';
                        else if(*i=='t')