Doc-es: various updates.

[lilypond.git] / lily / pfb.cc

diff --git a/lily/pfb.cc b/lily/pfb.cc
index 54e72b1ab35df5c27c6eee14888599f7c0f7bf8a..101f4f0fc68a7c947470b226b0fcb903b6395046 100644 (file)
--- a/lily/pfb.cc
+++ b/lily/pfb.cc
@@ -1,7 +1,7 @@
 /*
   This file is part of LilyPond, the GNU music typesetter.
 
-  Copyright (C) 2004--2011 Han-Wen Nienhuys <hanwen@xs4all.nl>
+  Copyright (C) 2004--2015 Han-Wen Nienhuys <hanwen@xs4all.nl>
 
   LilyPond is free software: you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
@@ -20,8 +20,11 @@
 #include <cstdlib>
 #include <cstdio>
 #include <cstring>
+#include <iomanip>
+#include <sstream>
 using namespace std;
 
+#include "international.hh"
 #include "program-option.hh"
 #include "source-file.hh"
 #include "memory-stream.hh"
@@ -29,55 +32,61 @@ using namespace std;
 #include "main.hh"
 #include "warn.hh"
 
-char *
-pfb2pfa (Byte const *pfb, int length)
+vector<char>
+pfb2pfa (const vector<char> &pfb)
 {
-  char *out = (char *) malloc (sizeof (char));
-  int olen = 0;
+  vector<char> out;
 
-  Byte const *p = pfb;
-  while (p < pfb + length)
+  vector<char>::const_iterator p = pfb.begin ();
+  while (p < pfb.end ())
     {
-      if (*p++ != 128)
-        break;
+      if (static_cast<Byte>(*p++) != 128)
+        {
+          error (_ ("Segment header of the Type 1 (PFB) font is broken."));
+          break;
+        }
 
-      Byte type = *p++;
+      Byte type = static_cast<Byte>(*p++);
       if (type == 3)
         break;
 
-      unsigned seglen
-        = p[0] | (p[1] << 8)
-          | (p[2] << 16) | (p[3] << 24);
+      size_t seglen = static_cast<Byte>(*p++);
+      seglen |= (static_cast<Byte>(*p++) << 8);
+      seglen |= (static_cast<Byte>(*p++) << 16);
+      seglen |= (static_cast<Byte>(*p++) << 24);
+      if ((p + seglen) > pfb.end ())
+        {
+          error (_ ("Segment length of the Type 1 (PFB) font is too long."));
+          break;
+        }
 
-      p += 4;
       if (type == 1)
         {
-          out = (char *)realloc (out, olen + seglen + 1);
-          char *outp = out + olen;
-          memcpy (outp, p, seglen);
-          olen += seglen;
+          copy (p, p + seglen, back_inserter (out));
           p += seglen;
         }
       else if (type == 2)
         {
-          unsigned outlength = (seglen * 2) + (seglen / 32) + 2;
+          stringstream ss;
 
-          out = (char *)realloc (out, olen + outlength + 1);
+          ss << hex << setfill ('0');
 
-          char *outp = out + olen;
-          for (int i = seglen; i--;)
+          for (size_t i = seglen; i > 0; --i)
             {
-              sprintf (outp, "%02x", *p++);
-              outp += 2;
+              ss << setw (2) << static_cast<int>(static_cast<Byte>(*p++));
               if (! (i % 32))
-                *outp++ = '\n';
+                ss << '\n';
             }
 
-          olen = outp - out;
+          string str = ss.str ();
+          copy (str.begin (), str.end (), back_inserter (out));
+        }
+      else
+        {
+          error (_ ("Segment type of the Type 1 (PFB) font is unknown."));
+          break;
         }
     }
-  out[olen] = 0;
 
   return out;
 }
-