support.cxx
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- /* ====================================================================
- * The Vovida Software License, Version 1.0
- *
- * Copyright (c) 2000 Vovida Networks, Inc. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * 2. 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.
- *
- * 3. The names "VOCAL", "Vovida Open Communication Application Library",
- * and "Vovida Open Communication Application Library (VOCAL)" must
- * not be used to endorse or promote products derived from this
- * software without prior written permission. For written
- * permission, please contact vocal@vovida.org.
- *
- * 4. Products derived from this software may not be called "VOCAL", nor
- * may "VOCAL" appear in their name, without prior written
- * permission of Vovida Networks, Inc.
- *
- * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESSED OR IMPLIED
- * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
- * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, TITLE AND
- * NON-INFRINGEMENT ARE DISCLAIMED. IN NO EVENT SHALL VOVIDA
- * NETWORKS, INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT DAMAGES
- * IN EXCESS OF $1,000, NOR FOR ANY INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
- * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
- * USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
- * DAMAGE.
- *
- * ====================================================================
- *
- * This software consists of voluntary contributions made by Vovida
- * Networks, Inc. and many individuals on behalf of Vovida Networks,
- * Inc. For more information on Vovida Networks, Inc., please see
- * <http://www.vovida.org/>.
- *
- */
- static const char* const support_cxx_Version =
- "$Id: support.cxx,v 1.43 2001/06/27 01:43:45 bko Exp $";
- #include "support.hxx"
- #ifdef __FreeBSD__
- #include <sys/types.h>
- #endif
- #ifndef WIN32
- #include <regex.h>
- #else
- #include "StdAfx.h"
- #define __STDC__ 1
- extern "C" {
- #include <regex.h>
- }
- #include <iostream>
- #endif
- #include "debug.h"
- #include <set>
- #include "cpLog.h"
- /**********************************************************************
-
- Support functions for the MGCP library.
-
- **********************************************************************/
- bool isIn(char ch, const string& charlist)
- {
- string::size_type pos = charlist.find_first_of(ch);
- if (pos != string::npos)
- {
- return true;
- }
- else
- {
- return false;
- }
- }
- substring
- paren_match(const string& inputText)
- {
- // create a substring from inputText and call it
- substring subInputText(&inputText, 0, inputText.length());
- return paren_match(subInputText);
- }
- substring
- paren_match(const substring& inputText)
- {
- string::size_type position = 0, firstParenLocation = string::npos;
- bool foundFirstParen = false;
- int parenCount = 0;
- while (
- position < inputText.length()
- && !(foundFirstParen && (parenCount == 0))
- )
- {
- // scan for the first paren
- char currentChar = const_cast < substring& > (inputText)[position];
- if (currentChar == '(')
- {
- if (!foundFirstParen)
- {
- foundFirstParen = true;
- firstParenLocation = position;
- }
- parenCount++;
- }
- else if (currentChar == ')')
- {
- if (foundFirstParen)
- {
- parenCount--;
- }
- }
- position++;
- }
- if (foundFirstParen && (parenCount == 0))
- {
- // in this case, create a substring based on this one
- ODEBUG(DEBUG_LOWLEVEL, 2, cout << ":" << inputText.str().substr(firstParenLocation + 1, (position - firstParenLocation - 2)) << ":n"; );
- substring retVal(inputText, firstParenLocation + 1, position - firstParenLocation - 2);
- return retVal;
- }
- else
- {
- // in this case, it is an error
- cerr << "could not match the string" << endl;
- if (firstParenLocation != string::npos)
- {
- substring errVal(inputText, firstParenLocation, inputText.length() - firstParenLocation);
- cerr << "string: " << errVal << endl;
- }
- return substring();
- }
- return substring();
- }
- string
- str_paren_match(const string& inputText)
- {
- // create a substring from inputText and call it
- substring subInputText(&inputText, 0, inputText.length());
- string matched = (paren_match(subInputText)).str();
- return( matched );
- }
- sub_split_t
- sub_split_paren_match(const string& inputText, const string& characters)
- {
- string::size_type position = 0, oldPosition = 0;
- sub_split_t splitted;
- unsigned int length = inputText.length();
- while (position < length)
- {
- // the code must loop through the entire text to make sure it
- // matches parentheses
- int parenCount = 0;
- while ((position < length)
- && !(isIn(inputText[position], characters) && (parenCount == 0))
- )
- {
- char currentChar = inputText[position];
- if (currentChar == '(')
- {
- parenCount++;
- }
- if (currentChar == ')')
- {
- parenCount--;
- }
- position++;
- }
- if (position == string::npos)
- position = inputText.length();
- if (parenCount != 0)
- {
- // we reached the end without balanced parentheses -- mark as an
- // error and continue
- cerr << "this is an error" << endl;
- }
- ODEBUG(DEBUG_LOWLEVEL, 2, cout << inputText.substr(oldPosition, (position - oldPosition)); );
- ODEBUG(DEBUG_LOWLEVEL, 2, cout << ":n"; );
- (splitted).push_back(
- substring(
- &inputText, oldPosition, (position - oldPosition))
- );
- oldPosition = inputText.find_first_not_of(characters, position);
- if (oldPosition == string::npos)
- oldPosition = inputText.length();
- position = oldPosition;
- }
- ODEBUG(DEBUG_LOWLEVEL, 2, cout << "number of lines: " << splitted.size() << endl; );
- return splitted;
- }
- split_t
- split_paren_match(const string& inputText, const string& characters)
- {
- string::size_type position = 0, oldPosition = 0;
- split_t splitted;
- unsigned int length = inputText.length();
- while (position < length)
- {
- // the code must loop through the entire text to make sure it
- // matches parentheses
- int parenCount = 0;
- while ((position < length)
- && !(isIn(inputText[position], characters) && (parenCount == 0))
- )
- {
- char currentChar = inputText[position];
- if (currentChar == '(')
- {
- parenCount++;
- }
- if (currentChar == ')')
- {
- parenCount--;
- }
- position++;
- }
- if (position == string::npos)
- position = inputText.length();
- if (parenCount != 0)
- {
- // we reached the end without balanced parentheses -- mark as an
- // error and continue
- cerr << "this is an error" << endl;
- }
- ODEBUG(DEBUG_LOWLEVEL, 2, cout << inputText.substr(oldPosition, (position - oldPosition)); );
- ODEBUG(DEBUG_LOWLEVEL, 2, cout << ":n"; );
-
- if((position != oldPosition) && (oldPosition < position))
- {
- (splitted).push_back(
- inputText.substr( oldPosition, (position - oldPosition)));
- }
- oldPosition = inputText.find_first_not_of(characters, position);
- if (oldPosition == string::npos)
- oldPosition = inputText.length();
- position = oldPosition;
- }
- ODEBUG(DEBUG_LOWLEVEL, 2, cout << "number of lines: " << splitted.size() << endl; );
- return splitted;
- }
- sub_split_t sub_split(const string& inputText, const string& characters)
- {
- string::size_type position = 0, oldPosition = 0;
- sub_split_t splitted;
- unsigned int length = inputText.length();
- while (position < length)
- {
- position = inputText.find_first_of(characters, oldPosition);
- // advance forward and eat all characters of type characters
- if (position == string::npos)
- position = inputText.length();
- ODEBUG(DEBUG_LOWLEVEL, 2, cout << inputText.substr(oldPosition, (position - oldPosition)); );
- ODEBUG(DEBUG_LOWLEVEL, 2, cout << ":n"; );
- (splitted).push_back(
- substring(
- &inputText, oldPosition, (position - oldPosition))
- );
- oldPosition = inputText.find_first_not_of(characters, position);
- if (oldPosition == string::npos)
- oldPosition = inputText.length();
- position = oldPosition;
- }
- ODEBUG(DEBUG_LOWLEVEL, 2, cout << "number of lines: " << splitted.size() << endl; );
- return splitted;
- }
- split_t split(const string& inputText, const string& characters)
- {
- // this is the original split definition, which I think may be inefficient
- // I will instead try a more efficient way of doing things.
- string::size_type position = 0, oldPosition = 0;
- split_t splitted;
- unsigned int length = inputText.length();
- while (position < length)
- {
- position = inputText.find_first_of(characters, oldPosition);
- if (position == string::npos)
- position = inputText.length();
- ODEBUG(DEBUG_LOWLEVEL, 2, cout << inputText.substr(oldPosition, (position - oldPosition)); );
- ODEBUG(DEBUG_LOWLEVEL, 2, cout << ":n"; );
- if((position != oldPosition) && (oldPosition < position))
- {
- (splitted).push_back(
- inputText.substr(oldPosition, (position - oldPosition)));
- }
- oldPosition = position + 1;
- }
- return splitted;
- }
- vector < string > new_split(const string& inputText, const string& characters)
- {
- vector < string > splitted;
- #if 0
- // this is the original split definition, which I think may be inefficient
- // I will instead try a more efficient way of doing things.
- string::size_type position = 0, oldPosition = 0;
- vector < string > splitted;
- unsigned int length = inputText.length();
- while (position < length)
- {
- position = inputText.find_first_of(characters, oldPosition);
- if (position == string::npos)
- position = inputText.length();
- ODEBUG(DEBUG_LOWLEVEL, 2, cout << inputText.substr(oldPosition, (position - oldPosition)); );
- ODEBUG(DEBUG_LOWLEVEL, 2, cout << ":n"; );
- (splitted).push_back(
- inputText.substr(oldPosition, (position - oldPosition)));
- oldPosition = position + 1;
- }
- return splitted;
- // this is the new way
- // build a set
- set < char > charSet;
- string::size_type charPos = 0;
- string::size_type charLen = characters.length();
- while (charPos < charLen)
- {
- charSet.insert(characters[charPos]);
- charPos++;
- }
- string::size_type position = 0;
- string::size_type length = inputText.length();
- vector < string > splitted;
- bool inDividingChar = true;
- while (position < length)
- {
- if (!inDividingChar)
- {
- if (charSet.find(inputText[position]) != charSet.end())
- {
- inDividingChar = true;
- }
- }
- if (charSet.find(inputText[position]) == charSet.end())
- {
- if (inDividingChar)
- {
- splitted.push_back(string("", 20));
- }
- inDividingChar = false;
- splitted.back() += inputText[position];
- }
- position++;
- }
- return splitted;
- #endif
- return splitted;
- }
- void chop(string* input)
- {
- string::iterator p = input->end();
- if (p != input->begin())
- --p;
- input->erase(p);
- }
- void chomp(string* input)
- {
- size_t i;
- i = input->length() - 1;
- if (i >= 0)
- {
- if ( ((*input)[i] == 'n' ) ||
- ((*input)[i] == 'r'))
- {
- input->erase(i, 1);
- }
- }
- }
- string str2lower(string str)
- {
- unsigned int i = 0;
- unsigned int size = str.size();
- while (i < size)
- {
- str[i] = tolower(str[i]);
- i++;
- }
- return str;
- }
- string c2lower_s(const char* cstr)
- {
- string str;
- // unsigned int i = 0;
- while (cstr && *cstr)
- {
- str += tolower(*cstr);
- cstr++;
- }
- return str;
- }
- int matchString(string a, string regex)
- {
- regex_t re;
- int status;
- if ((status = regcomp( &re, regex.c_str(), REG_EXTENDED)) != 0)
- return (status);
- status = regexec( &re, a.c_str(), 0, NULL, 0);
- regfree(&re);
- return (status);
- }
- bool stringToInt ( const string& s, int *num)
- {
- /// skipping spaces in the front
- // string::size_type position = 0;
- // position = s.find_first_not_of(string(" "), 0);
- int position = 0;
- for (int i = 0, j = s.length(); i < j; i++)
- {
- if (s[i] != ' ')
- {
- position = i;
- break;
- }
- }
- /// convert the string to integer
- char ch;
- int value = 0;
- #ifndef WIN32
- for (int i = position, j = s.length(); i < j; i++)
- {
- ch = s[i];
- #else
- for (int iIndex = position, jIndex= s.length(); iIndex < jIndex; iIndex++)
- {
- ch = s[iIndex];
- #endif
- if ( (ch >= '0') && (ch <= '9') )
- value = atoi(&ch) + value * 10;
- else if ( ch == ' ' )
- break; /// a whole number is read
- else
- return (false); /// illegal char, not a digit or space
- }
- *num = value;
- return (true);
- }
- bool getRange( const string& s, int* start, int* end, bool* isRange)
- {
- /// initialize all possible returns
- *start = 0;
- *end = 0;
- *isRange = false;
- /// split the range into two integers, assuming the numbers
- /// are separeted by '-'.
- // deque<string> test_1_vector;
- //sub_split_t test_1_vector;
- split_t test_1_vector;
- // string myStr(s.str());
- //test_1_vector = sub_split(myStr, "-");
- test_1_vector = split( s, "-");
- /// read in the first integer if any
- if (test_1_vector.size() >= 1 )
- {
- if (!stringToInt( test_1_vector[0], start)) // if (true), a valid integer is read into start variable
- return (false); // first number is not a valid integer
- }
- else
- return (false); // no data in the input string at all
- /// read in the second integer if any
- if (test_1_vector.size() >= 2 )
- {
- if (stringToInt( test_1_vector[1], end)) // if (true), a valid second integer is read into end variable
- {
- if (*start <= *end )
- *isRange = true; // got a valid range
- else
- return (false); // range is not valid, larger number went first
- }
- else
- return (false); // second number after '-' is not valid, ignore the range
- }
- return (true); // success in getting one or two valid integers from string
- }
- //
- Data convertToHex(const unsigned char* src, int len)
- {
- Data data;
- unsigned char temp;
- //convert to hex.
- int i;
- //int j = 0;
- for (i = 0; i < len; i++)
- {
- temp = src[i];
- int hi = (temp & 0xf0) / 16;
- int low = (temp & 0xf);
- char buf[4];
- buf[0] = ' ';
- sprintf(buf, "%x%x", hi, low);
- data += buf;
- }
- #if 0 //Change to 1 if needed for debugging
- cpLog(LOG_DEBUG, "convertToHex, value is: %s", data.getData());
- #endif
- return data;
- }
- int convertToUnsigned(const Data& data, unsigned char* dest)
- {
- int len = data.length();
- memcpy(dest, data.getData(), len);
- dest[len] = ' ';
- //convert and return the length of dest.
- cpLog(LOG_DEBUG, "orig value string: %s", data.getData());
- cpLog(LOG_DEBUG, "orig value hex: %s", convertToHex(dest, len).getData());
- cpLog(LOG_DEBUG, "convertToUnsigned, length is %d, value is : %s", len, dest);
- return len;
- }