flower/std-string.cc

   1 /*
   2   std-string.cc -- implement external interface for Std_String
   3
   4   source file of the GNU LilyPond music typesetter
   5
   6   (c) 2006--2009  Jan Nieuwenhuizen <janneke@gnu.org>
   7 */
   8
   9 #include "std-string.hh"
  10 #include "string-convert.hh"
  11
  12 string
  13 to_string (string s)
  14 {
  15   return s;
  16 }
  17
  18 string
  19 to_string (char c, int n)
  20 {
  21   return string (max (n, 0), c);
  22 }
  23
  24 string
  25 to_string (double f, char const *format)
  26 {
  27   return String_convert::double_string (f, format);
  28 }
  29
  30 string
  31 to_string (int i, char const *format)
  32 {
  33   return String_convert::int_string (i, format);
  34 }
  35
  36 string
  37 to_string (bool b)
  38 {
  39   return String_convert::bool_string (b);
  40 }
  41
  42 string
  43 to_string (long b)
  44 {
  45   return String_convert::long_string (b);
  46 }
  47
  48 string
  49 to_string (long unsigned b)
  50 {
  51   return String_convert::unsigned_string (b);
  52 }
  53
  54 string
  55 to_string (unsigned u)
  56 {
  57   return String_convert::unsigned_string (u);
  58 }
  59
  60 string
  61 to_string (I64 b, char const *format)
  62 {
  63   return String_convert::i64_string (b, format);
  64 }
  65
  66 string
  67 to_string (char const *format, ...)
  68 {
  69   va_list args;
  70   va_start (args, format);
  71   string str = String_convert::vform_string (format, args);
  72   va_end (args);
  73   return str;
  74 }
  75
  76 /*
  77   TODO: this O(n^2) in #occurences of find, due to repeated copying.
  78  */
  79 string &
  80 replace_all (string *str, string const &find, string const &replace)
  81 {
  82   ssize len = find.length ();
  83   ssize replen = replace.length ();
  84   for (ssize i = str->find (find); i != NPOS; i = str->find (find, i + replen))
  85     *str = str->replace (i, len, replace);
  86   return *str;
  87 }
  88
  89 string &
  90 replace_all (string *str, char find, char replace)
  91 {
  92   for (ssize i = str->find (find); i != NPOS; i = str->find (find, i + 1))
  93     (*str)[i] = replace;
  94   return *str;
  95 }
  96
  97 char *
  98 string_copy (string s)
  99 {
 100   ssize len = s.length ();
 101   char *dest = new char[len + 1];
 102   copy (s.begin (), s.end (), dest);
 103   dest[len] = 0;
 104
 105   return dest;
 106 }
 107
 108 int
 109 string_compare (string const &a, string const &b)
 110 {
 111   return a.compare (b);
 112 }
 113
 114 #include "std-vector.hh"
 115
 116 vector<string>
 117 string_split (string str, char c)
 118 {
 119   ssize i = str.find (c);
 120
 121   vector<string> a;
 122   while (i != NPOS)
 123     {
 124       string s = str.substr (0, i);
 125       a.push_back (s);
 126       i ++;
 127       str = str.substr (i);
 128       i = str.find (c);
 129     }
 130   if (str.length ())
 131     a.push_back (str);
 132   return a;
 133 }
 134
 135 string
 136 string_join (vector<string> const &strs, string infix)
 137 {
 138   string result;
 139   for (vsize i = 0; i < strs.size (); i ++)
 140     {
 141       if (i)
 142         result += infix;
 143       result += strs[i];
 144     }
 145
 146   return result;
 147 }