removed '--remove-unused-glyph'

ChangeLog

@@ -7,8 +7,9 @@ Developing v0.9
 * New options:
  --embed
  --embed-***
-* Deprecated options:
+* Deprecated/Removed options:
  --single-html
+ --remove-unused-glyph
 
 v0.8
 2013.05.05

pdf2htmlEX.1.in

@@ -158,12 +158,6 @@ Specify the suffix of fonts extracted from the PDF file.
 .B --decompose-ligature <0|1> (Default: 0)
 Decompose ligatures. For example 'fi' -> 'f''i'.
 
-.TP
-.B --remove-unused-glyph <0|1> (Default: 0)
-If set to 1, remove unused glyphs in embedded fonts in order to reduce the file size.
-
-Currently this option is experimental, turning it on may cause segmentation fault or debris-like fonts.
-
 .TP
 .B --auto-hint <0|1> (Default: 0)
 If set to 1, hints will be generated for the fonts using fontforge. 

src/HTMLRenderer/font.cc

@@ -470,7 +470,7 @@ void HTMLRenderer::embed_font(const string & filepath, GfxFont * font, FontInfo
             }
         }
 
-        ffw_set_widths(width_list, max_key + 1, param.stretch_narrow_glyph, param.squeeze_wide_glyph, param.remove_unused_glyph);
+        ffw_set_widths(width_list, max_key + 1, param.stretch_narrow_glyph, param.squeeze_wide_glyph);
         
         ffw_reencode_raw(cur_mapping, max_key + 1, 1);
 

src/Param.h

@@ -44,7 +44,6 @@ struct Param
     int embed_external_font;
     std::string font_suffix;
     int decompose_ligature;
-    int remove_unused_glyph;
     int auto_hint;
     std::string external_hint_tool;
     int stretch_narrow_glyph;

src/pdf2htmlEX.cc

@@ -42,6 +42,12 @@ void deprecated_single_html(const char * dummy = nullptr)
     exit(EXIT_FAILURE);
 }
 
+void removed_remove_unsed_glyph(const char * dummy = nullptr)
+{
+    cerr << "--remove-unsed-glyph is removed. Use a PDF optimization tool instead." << endl;
+    exit(EXIT_FAILURE);
+}
+
 void show_usage_and_exit(const char * dummy = nullptr)
 {
     cerr << "Usage: pdf2htmlEX [options] <input.pdf> [<output.html>]" << endl;
@@ -121,7 +127,6 @@ void parse_options (int argc, char **argv)
         .add("embed-external-font", &param.embed_external_font, 1, "embed local match for external fonts")
         .add("font-suffix", &param.font_suffix, ".ttf", "suffix for embedded font files (.ttf,.otf,.woff,.svg)")
         .add("decompose-ligature", &param.decompose_ligature, 0, "decompose ligatures, such as \uFB01 -> fi")
-        .add("remove-unused-glyph", &param.remove_unused_glyph, 0, "remove unused glyphs in embedded fonts")
         .add("auto-hint", &param.auto_hint, 0, "use fontforge autohint on fonts without hints")
         .add("external-hint-tool", &param.external_hint_tool, "", "external tool for hinting fonts (overrides --auto-hint)")
         .add("stretch-narrow-glyph", &param.stretch_narrow_glyph, 0, "stretch narrow glyphs instead of padding them")
@@ -154,6 +159,7 @@ void parse_options (int argc, char **argv)
 
         // deprecated
         .add("single-html", "", &deprecated_single_html)
+        .add("remove-unused-glyph", "", &removed_remove_unsed_glyph)
         
         .add("", &param.input_filename, "", "")
         .add("", &param.output_filename, "", "")

src/util/ffw.c

@@ -353,11 +353,9 @@ void ffw_metric(double * ascent, double * descent)
 
 /*
  * TODO:bitmap, reference have not been considered in this function
- * TODO:remove_unused may not be suitable to be done here
  */
 void ffw_set_widths(int * width_list, int mapping_len, 
-        int stretch_narrow, int squeeze_wide,
+        int stretch_narrow, int squeeze_wide)
-        int remove_unused)
 {
     SplineFont * sf = cur_fv->sf;
 
@@ -368,19 +366,16 @@ void ffw_set_widths(int * width_list, int mapping_len,
         printf("TODO: width vs bitmap\n");
     }
 
-    memset(cur_fv->selected, 0, cur_fv->map->enccount);
-
     EncMap * map = cur_fv->map;
     int i;
     int imax = min(mapping_len, map->enccount);
     for(i = 0; i < imax; ++i)
     {
         /*
-         * Do mess with it if the glyphs is not used.
+         * Don't mess with it if the glyphs is not used.
          */
         if(width_list[i] == -1) 
         {
-            cur_fv->selected[i] = 1;
             continue;
         }
 
@@ -405,12 +400,6 @@ void ffw_set_widths(int * width_list, int mapping_len,
 
         SCSynchronizeWidth(sc, width_list[i], sc->width, cur_fv);
     }
-
-    for(; i < map->enccount; ++i)
-        cur_fv->selected[i] = 1;
-
-    if(remove_unused)
-        FVDetachAndRemoveGlyphs(cur_fv);
 }
 
 void ffw_auto_hint(void)

src/util/ffw.h

@@ -50,8 +50,7 @@ int ffw_get_em_size(void);
 void ffw_metric(double * ascent, double * descent);
 
 void ffw_set_widths(int * width_list, int mapping_len, 
-        int stretch_narrow, int squeeze_wide, 
+        int stretch_narrow, int squeeze_wide);
-        int remove_unused);
 
 ////////////////////////
 // others