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-rw-r--r--contrib/epee/src/parserse_base_utils.cpp282
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diff --git a/contrib/epee/src/parserse_base_utils.cpp b/contrib/epee/src/parserse_base_utils.cpp
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+// Copyright (c) 2006-2013, Andrey N. Sabelnikov, www.sabelnikov.net
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are met:
+// * Redistributions of source code must retain the above 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 materials provided with the distribution.
+// * Neither the name of the Andrey N. Sabelnikov nor the
+// names of its contributors may be used to endorse or promote products
+// derived from this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+// WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+// DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER BE LIABLE FOR ANY
+// DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+// (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+// LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+// ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+//
+
+#include "storages/parserse_base_utils.h"
+
+#include "misc_log_ex.h"
+#include <boost/utility/string_ref.hpp>
+#include <algorithm>
+
+#undef MONERO_DEFAULT_LOG_CATEGORY
+#define MONERO_DEFAULT_LOG_CATEGORY "serialization"
+
+namespace epee
+{
+namespace misc_utils
+{
+ namespace parse
+ {
+ std::string transform_to_escape_sequence(const std::string& src)
+ {
+ static const char escaped[] = "\b\f\n\r\t\v\"\\/";
+ std::string::const_iterator it = std::find_first_of(src.begin(), src.end(), escaped, escaped + sizeof(escaped));
+ if (it == src.end())
+ return src;
+
+ std::string res;
+ res.reserve(2 * src.size());
+ res.assign(src.begin(), it);
+ for(; it!=src.end(); ++it)
+ {
+ switch(*it)
+ {
+ case '\b': //Backspace (ascii code 08)
+ res+="\\b"; break;
+ case '\f': //Form feed (ascii code 0C)
+ res+="\\f"; break;
+ case '\n': //New line
+ res+="\\n"; break;
+ case '\r': //Carriage return
+ res+="\\r"; break;
+ case '\t': //Tab
+ res+="\\t"; break;
+ case '\v': //Vertical tab
+ res+="\\v"; break;
+ //case '\'': //Apostrophe or single quote
+ // res+="\\'"; break;
+ case '"': //Double quote
+ res+="\\\""; break;
+ case '\\': //Backslash caracter
+ res+="\\\\"; break;
+ case '/': //Backslash caracter
+ res+="\\/"; break;
+ default:
+ res.push_back(*it);
+ }
+ }
+ return res;
+ }
+ /*
+
+ \b Backspace (ascii code 08)
+ \f Form feed (ascii code 0C)
+ \n New line
+ \r Carriage return
+ \t Tab
+ \v Vertical tab
+ \' Apostrophe or single quote
+ \" Double quote
+ \\ Backslash character
+
+ */
+ void match_string2(std::string::const_iterator& star_end_string, std::string::const_iterator buf_end, std::string& val)
+ {
+ bool escape_mode = false;
+ std::string::const_iterator it = star_end_string;
+ ++it;
+ std::string::const_iterator fi = it;
+ while (fi != buf_end && ((lut[(uint8_t)*fi] & 32)) == 0)
+ ++fi;
+ val.assign(it, fi);
+ it = fi;
+ for(;it != buf_end;it++)
+ {
+ if(escape_mode/*prev_ch == '\\'*/)
+ {
+ switch(*it)
+ {
+ case 'b': //Backspace (ascii code 08)
+ val.push_back(0x08);break;
+ case 'f': //Form feed (ascii code 0C)
+ val.push_back(0x0C);break;
+ case 'n': //New line
+ val.push_back('\n');break;
+ case 'r': //Carriage return
+ val.push_back('\r');break;
+ case 't': //Tab
+ val.push_back('\t');break;
+ case 'v': //Vertical tab
+ val.push_back('\v');break;
+ case '\'': //Apostrophe or single quote
+ val.push_back('\'');break;
+ case '"': //Double quote
+ val.push_back('"');break;
+ case '\\': //Backslash character
+ val.push_back('\\');break;
+ case '/': //Slash character
+ val.push_back('/');break;
+ case 'u': //Unicode code point
+ if (buf_end - it < 4)
+ {
+ ASSERT_MES_AND_THROW("Invalid Unicode escape sequence");
+ }
+ else
+ {
+ uint32_t dst = 0;
+ for (int i = 0; i < 4; ++i)
+ {
+ const unsigned char tmp = isx[(unsigned char)*++it];
+ CHECK_AND_ASSERT_THROW_MES(tmp != 0xff, "Bad Unicode encoding");
+ dst = dst << 4 | tmp;
+ }
+ // encode as UTF-8
+ if (dst <= 0x7f)
+ {
+ val.push_back(dst);
+ }
+ else if (dst <= 0x7ff)
+ {
+ val.push_back(0xc0 | (dst >> 6));
+ val.push_back(0x80 | (dst & 0x3f));
+ }
+ else if (dst <= 0xffff)
+ {
+ val.push_back(0xe0 | (dst >> 12));
+ val.push_back(0x80 | ((dst >> 6) & 0x3f));
+ val.push_back(0x80 | (dst & 0x3f));
+ }
+ else
+ {
+ ASSERT_MES_AND_THROW("Unicode code point is out or range");
+ }
+ }
+ break;
+ default:
+ val.push_back(*it);
+ LOG_PRINT_L0("Unknown escape sequence :\"\\" << *it << "\"");
+ }
+ escape_mode = false;
+ }else if(*it == '"')
+ {
+ star_end_string = it;
+ return;
+ }else if(*it == '\\')
+ {
+ escape_mode = true;
+ }
+ else
+ {
+ val.push_back(*it);
+ }
+ }
+ ASSERT_MES_AND_THROW("Failed to match string in json entry: " << std::string(star_end_string, buf_end));
+ }
+ void match_number2(std::string::const_iterator& star_end_string, std::string::const_iterator buf_end, boost::string_ref& val, bool& is_float_val, bool& is_signed_val)
+ {
+ val.clear();
+ uint8_t float_flag = 0;
+ is_signed_val = false;
+ size_t chars = 0;
+ std::string::const_iterator it = star_end_string;
+ if (it != buf_end && *it == '-')
+ {
+ is_signed_val = true;
+ ++chars;
+ ++it;
+ }
+ for(;it != buf_end;it++)
+ {
+ const uint8_t flags = lut[(uint8_t)*it];
+ if (flags & 16)
+ {
+ float_flag |= flags;
+ ++chars;
+ }
+ else
+ {
+ val = boost::string_ref(&*star_end_string, chars);
+ if(val.size())
+ {
+ star_end_string = --it;
+ is_float_val = !!(float_flag & 2);
+ return;
+ }
+ else
+ ASSERT_MES_AND_THROW("wrong number in json entry: " << std::string(star_end_string, buf_end));
+ }
+ }
+ ASSERT_MES_AND_THROW("wrong number in json entry: " << std::string(star_end_string, buf_end));
+ }
+ void match_word2(std::string::const_iterator& star_end_string, std::string::const_iterator buf_end, boost::string_ref& val)
+ {
+ val.clear();
+
+ for(std::string::const_iterator it = star_end_string;it != buf_end;it++)
+ {
+ if (!(lut[(uint8_t)*it] & 4))
+ {
+ val = boost::string_ref(&*star_end_string, std::distance(star_end_string, it));
+ if(val.size())
+ {
+ star_end_string = --it;
+ return;
+ }else
+ ASSERT_MES_AND_THROW("failed to match word number in json entry: " << std::string(star_end_string, buf_end));
+ }
+ }
+ ASSERT_MES_AND_THROW("failed to match word number in json entry: " << std::string(star_end_string, buf_end));
+ }
+ bool match_word_with_extrasymb(std::string::const_iterator& star_end_string, std::string::const_iterator buf_end, std::string& val)
+ {
+ val.clear();
+
+ for(std::string::const_iterator it = star_end_string;it != buf_end;it++)
+ {
+ if(!isalnum(*it) && *it != '-' && *it != '_')
+ {
+ val.assign(star_end_string, it);
+ if(val.size())
+ {
+ star_end_string = --it;
+ return true;
+ }else
+ return false;
+ }
+ }
+ return false;
+ }
+ bool match_word_til_equal_mark(std::string::const_iterator& star_end_string, std::string::const_iterator buf_end, std::string::const_iterator& word_end)
+ {
+ word_end = star_end_string;
+
+ for(std::string::const_iterator it = star_end_string;it != buf_end;it++)
+ {
+ if(isspace(*it))
+ {
+
+ continue;
+ }else if( *it == '=' )
+ {
+ star_end_string = it;
+ word_end = it;
+ return true;
+ }
+ }
+ return false;
+ }
+ }
+}
+}
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-18 17:57:58 +0000