patch::: 1.5.11.jcn2

[lilypond.git] / lily / afm.cc

diff --git a/lily/afm.cc b/lily/afm.cc
index 1efee6721313570c77390e7045b436721d0fbbd1..f09d63bad58ce915cad52de595cfcbc345318fdd 100644 (file)
--- a/lily/afm.cc
+++ b/lily/afm.cc
@@ -3,7 +3,7 @@
   
   source file of the Flower Library
   
-  (c) 2000 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+  (c) 2000--2001 Han-Wen Nienhuys <hanwen@cs.uu.nl>
   
  */
 #include "afm.hh"
@@ -12,6 +12,7 @@
 
 Adobe_font_metric::Adobe_font_metric (AFM_Font_info * fi)
 {
+  checksum_ = 0;
   font_inf_ = fi;
 
   for (int i= 256; i--;)
@@ -21,18 +22,24 @@ Adobe_font_metric::Adobe_font_metric (AFM_Font_info * fi)
     {
       AFM_CharMetricInfo * c = fi->cmi + i;
 
-      ascii_to_metric_idx_[c->code] = i;
+      /*
+       Some TeX afm files contain code = -1. We don't know why, let's
+       ignore it.
+       
+       */
+      if (c->code >= 0)
+       ascii_to_metric_idx_[c->code] = i;
       name_to_metric_dict_[c->name] = i;
     }
 }
 
 
 SCM
-Adobe_font_metric::make_afm (AFM_Font_info *fi)
+Adobe_font_metric::make_afm (AFM_Font_info *fi, unsigned int checksum)
 {
   Adobe_font_metric * fm = new Adobe_font_metric (fi);
-
-  return fm->self_scm();    
+  fm->checksum_ = checksum;
+  return fm->self_scm ();    
 }
 
 
@@ -47,7 +54,7 @@ Adobe_font_metric::find_ascii_metric (int a , bool warn) const
          return font_inf_->cmi + code;
        }
     }
-  else if (warn )
+  else if (warn)
     {
       warning (_f ("can't find character number: %d", a));
     }
@@ -58,13 +65,13 @@ Adobe_font_metric::find_ascii_metric (int a , bool warn) const
 AFM_CharMetricInfo const *
 Adobe_font_metric::find_char_metric (String nm, bool warn) const
 {
-  map<String,int>::const_iterator ai = name_to_metric_dict_.find (nm);
+  std::map<String,int>::const_iterator ai = name_to_metric_dict_.find (nm);
   
   if (ai == name_to_metric_dict_.end ())
     {
       if (warn)
        {
-         warning (_f ("can't find character called: `%s'", nm.ch_C()));
+         warning (_f ("can't find character called: `%s'", nm.ch_C ()));
        }
       return 0;
     }
@@ -72,13 +79,18 @@ Adobe_font_metric::find_char_metric (String nm, bool warn) const
     return font_inf_->cmi + (*ai).second;
 }
 
+int
+Adobe_font_metric::count () const
+{
+  return ascii_to_metric_idx_.size ();
+}
 
 Box
 Adobe_font_metric::get_char (int code) const
 {
   AFM_CharMetricInfo const
     * c =  find_ascii_metric (code,false);
-  Box b (Interval (0,0),Interval(0,0));
+  Box b (Interval (0,0),Interval (0,0));
   if (c)
     b = afm_bbox_to_box (c->charBBox);                 
 
@@ -88,19 +100,33 @@ Adobe_font_metric::get_char (int code) const
 SCM
 read_afm_file (String nm)
 {
-  FILE *f = fopen (nm.ch_C() , "r");
+  FILE *f = fopen (nm.ch_C () , "r");
+  char s[2048];
+  char *check_key = "TfmCheckSum"; 
+  fgets (s, sizeof (s), f);
+
+  unsigned int cs = 0;  
+  if (strncmp (s, check_key, strlen (check_key)) == 0)
+    {
+      sscanf (s + strlen (check_key), "%ud", &cs);
+    }
+  else
+    {
+      rewind (f);
+    }
 
+    
   AFM_Font_info * fi;
   int ok = AFM_parseFile (f, &fi, ~1);
 
   if (ok)
     {
-      error (_("Error parsing AFM file"));
+      error (_f ("Error parsing AFM file: `%s'", nm.ch_C ()));
       exit (2);
     }
   fclose (f);
 
-  return Adobe_font_metric::make_afm (fi);
+  return Adobe_font_metric::make_afm (fi, cs);
 }
 
   
@@ -133,7 +159,7 @@ Adobe_font_metric::find_by_name (String s) const
       return m;
     }
   
-  SCM at =  (gh_list (ly_symbol2scm ("char"),
+  SCM at = (scm_listify (ly_symbol2scm ("char"),
                      gh_int2scm (cm->code),
                      SCM_UNDEFINED));