Right way to split an std string into a vector string

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Possible Duplicate    How to split a string        What is the right way to split a string into a vector of strings  Delimiter is space or comma

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vector lt string gt  split string str  string token       vector lt string gt result      while str size             int index   str find token           if index  string  npos               result push back str substr 0 index                str   str substr index token size                 if str size    0 result push back str            else              result push back str               str                           return result         split  1 2 3              1   2   3        split  1 2               1   2           split  1token2token3   token         1   2   3

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std  vector lt std  string gt  split std  string text  char delim        std  string line      std  vector lt std  string gt  vec      std  stringstream ss text       while std  getline ss  line  delim             vec push back line             return vec     split  quot String will be split quot        - gt    quot String quot    quot will quot    quot be quot    quot split quot   split  quot Hello  how are you  quot        - gt    quot Hello quot    quot how are you  quot   EDIT  Here s a thing I made  this can use multi-char delimiters  albeit I m not 100  sure if it always works  std  vector lt std  string gt  split std  string text  std  string delim        std  vector lt std  string gt  vec      size t pos   0  prevPos   0      while  1            pos   text find delim  prevPos           if  pos    std  string  npos                vec push back text substr prevPos                return vec                     vec push back text substr prevPos  pos - prevPos            prevPos   pos   delim length

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Tweaked version from Techie Delight    include  lt string gt   include  lt vector gt   std  vector lt std  string gt  split const std  string amp  str  char delim        std  vector lt std  string gt  strings      size t start      size t end   0      while   start   str find first not of delim  end      std  string  npos            end   str find delim  start           strings push back str substr start  end - start              return strings

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If the string has both spaces and commas you can use the string class function   found index   myString find first of delims str  begin index     in a loop  Checking for    npos and inserting into a vector  If you prefer old school you can also use C s  strtok      method

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For space separated strings  then you can do this  std  string s    quot What is the right way to split a string into a vector of strings quot   std  stringstream ss s   std  istream iterator lt std  string gt  begin ss   std  istream iterator lt std  string gt  end  std  vector lt std  string gt  vstrings begin  end   std  copy vstrings begin    vstrings end    std  ostream iterator lt std  string gt  std  cout   quot  n quot      Output  What is the right way to split a string into a vector of strings   string that have both comma and space struct tokens  std  ctype lt char gt         tokens    std  ctype lt char gt  get table             static std  ctype base  mask const  get table                 typedef std  ctype lt char gt  cctype          static const cctype  mask  const rc  cctype  classic table              static cctype  mask rc cctype  table size           std  memcpy rc  const rc  cctype  table size   sizeof cctype  mask              rc        std  ctype base  space           rc        std  ctype base  space           return  amp rc 0              std  string s    quot right way  wrong way  correct way quot   std  stringstream ss s   ss imbue std  locale std  locale    new tokens      std  istream iterator lt std  string gt  begin ss   std  istream iterator lt std  string gt  end  std  vector lt std  string gt  vstrings begin  end   std  copy vstrings begin    vstrings end    std  ostream iterator lt std  string gt  std  cout   quot  n quot      Output  right way wrong way correct way

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A convenient way would be boost s string algorithms library    include  lt boost algorithm string classification hpp gt     Include boost  for is any of  include  lt boost algorithm string split hpp gt     Include for boost  split         std  vector lt std  string gt  words  std  string s  boost  split words  s  boost  is any of        boost  token compress on

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I write this custom function this will help you  But make discussions about the Time complexity    std  vector lt std  string gt  words  std  string s  std  string separator         while s find separator     std  string  npos      separatorIndex   s find separator     vtags push back s substr 0  separatorIndex        words  s substr separatorIndex   1  s length        words push back s

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i made this custom function that will convert the line to vector    include  lt iostream gt   include  lt vector gt   include  lt ctime gt   include  lt string gt   using namespace std   int main         string line      getline cin  line       int len   line length        vector lt string gt  subArray       for  int j   0  k   0  j  lt  len  j              if  line j                        string ch   line substr k  j - k               k   j 1              subArray push back ch                     if  j    len - 1                string ch   line substr k  j - k 1               subArray push back ch                        return 0

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You can use getline with delimiter   string s  tmp   stringstream ss s   vector lt string gt  words   while getline ss  tmp             words push back tmp

[c++] Right way to split an std::string into a vector<string>

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