lib/misc/strlist.cc
changeset 0 6f7a81934006
child 2 b3afb9f1e801
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     1 // Copyright (C) 1999,2000 Bruce Guenter <bruceg@em.ca>
       
     2 //
       
     3 // This program is free software; you can redistribute it and/or modify
       
     4 // it under the terms of the GNU General Public License as published by
       
     5 // the Free Software Foundation; either version 2 of the License, or
       
     6 // (at your option) any later version.
       
     7 //
       
     8 // This program is distributed in the hope that it will be useful,
       
     9 // but WITHOUT ANY WARRANTY; without even the implied warranty of
       
    10 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
       
    11 // GNU General Public License for more details.
       
    12 //
       
    13 // You should have received a copy of the GNU General Public License
       
    14 // along with this program; if not, write to the Free Software
       
    15 // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
       
    16 
       
    17 #include <config.h>
       
    18 #include "strlist.h"
       
    19 
       
    20 static const char* compare(const char* ptr, const char* end,
       
    21 			   const mystring& var, char suffix)
       
    22 {
       
    23   unsigned varlen = var.length();
       
    24   unsigned ptrlen = (unsigned)(end-ptr);
       
    25   if(ptrlen > varlen &&
       
    26      !memcmp(var.c_str(), ptr, varlen) &&
       
    27      (suffix && ptr[varlen] == suffix))
       
    28     return ptr + varlen + (suffix ? 1 : 0);
       
    29   return 0;
       
    30 }
       
    31 
       
    32 const char* strlist::find(const mystring& str, const mystring& var,
       
    33 			  char suffix)
       
    34 {
       
    35   const char* ptr = str.c_str();
       
    36   const char* end = ptr + str.length();
       
    37   const char* tmp;
       
    38   while(ptr < end) {
       
    39     if((tmp = compare(ptr, end, var, suffix)) != 0)
       
    40       return tmp;
       
    41     ptr += strlen(ptr) + 1;
       
    42   }
       
    43   return 0;
       
    44 }
       
    45 
       
    46 mystring strlist::find(const mystring& var, char suffix) const
       
    47 {
       
    48   return find(datastr, var, suffix);
       
    49 }
       
    50 
       
    51 void strlist::append(const mystring& str)
       
    52 {
       
    53   datastr = datastr + mystring::NUL + str;
       
    54 }