X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=flower%2Fstd-string.cc;h=92946a63f8aa950d3b2fa1f8f6239c1a72dbc380;hb=5cfe4870e6871699219fa7a27a27d852d47bc54f;hp=b78b0196616aa1adde6f46b9ab64df379b523ed5;hpb=87eedcd59f4082cb0841528ad5bc82cb1d1191e3;p=lilypond.git

diff --git a/flower/std-string.cc b/flower/std-string.cc
index b78b019661..92946a63f8 100644
--- a/flower/std-string.cc
+++ b/flower/std-string.cc
@@ -57,6 +57,12 @@ to_string (unsigned u)
   return String_convert::unsigned_string (u);
 }
 
+string
+to_string (I64 b, char const *format)
+{
+  return String_convert::i64_string (b, format);
+}
+
 string
 to_string (char const *format, ...)
 {
@@ -67,21 +73,24 @@ to_string (char const *format, ...)
   return str;
 }
 
+/*
+  TODO: this O(n^2) in #occurences of find, due to repeated copying.
+ */
 string &
-replace_all (string &str, string find, string replace)
+replace_all (string *str, string const &find, string const &replace)
 {
   ssize len = find.length ();
-  for (ssize i = str.find (find); i != NPOS; i = str.find (find, i + len))
-    str = str.replace (i, len, replace);
-  return str;
+  for (ssize i = str->find (find); i != NPOS; i = str->find (find, i + len))
+    *str = str->replace (i, len, replace);
+  return *str;
 }
 
 string &
-replace_all (string &str, char find, char replace)
+replace_all (string *str, char find, char replace)
 {
-  for (ssize i = str.find (find); i != NPOS; i = str.find (find, i + 1))
-    str[i] = replace;
-  return str;
+  for (ssize i = str->find (find); i != NPOS; i = str->find (find, i + 1))
+    (*str)[i] = replace;
+  return *str;
 }
 
 char *
@@ -113,8 +122,7 @@ string_split (string str, char c)
     {
       string s = str.substr (0, i);
       a.push_back (s);
-      while (str[++i] == c)
-	;
+      i ++;
       str = str.substr (i);
       i = str.find (c);
     }
@@ -122,3 +130,17 @@ string_split (string str, char c)
     a.push_back (str);
   return a;
 }
+
+string
+string_join (vector<string> const &strs, string infix)
+{
+  string result;
+  for (vsize i = 0; i < strs.size (); i ++)
+    {
+      if (i)
+	result += infix;
+      result += strs[i];
+    }
+
+  return result;
+}