2 afm-reader.cc -- implement Adobe_font_metric_file
4 source file of the GNU LilyPond music typesetter
6 (c) 1998 Han-Wen Nienhuys <hanwen@cs.uu.nl>
10 #include "direction.hh"
12 #include "data-file.hh"
13 #include "string-convert.hh"
18 parse_box (Array<String> a)
22 b[X_AXIS][SMALLER] = a[i++].value_f ();
23 b[Y_AXIS][SMALLER] = a[i++].value_f ();
24 b[X_AXIS][BIGGER] = a[i++].value_f ();
25 b[Y_AXIS][BIGGER] = a[i++].value_f ();
30 strip_leading_white (String c)
35 c = c.cut_str (i, INT_MAX);
39 Adobe_font_char_metric
40 read_char_metric (String s, int size)
42 Adobe_font_char_metric char_metric;
43 char_metric.size_ = size;
44 Array<String> a= String_convert::split_arr (s, ';');
45 for (int i=0; i < a.size (); i++)
47 String c = strip_leading_white (a[i]);
49 Array<String> b = String_convert::split_arr (c, ' ');
51 char_metric.C_ = b[1].value_i ();
52 else if (b[0] == "WX")
53 char_metric.WX_ = b[1].value_f ();
55 char_metric.N_ = strip_leading_white (b[1]);
57 char_metric.B_ = parse_box (b.slice (1, b.size()));
63 Adobe_font_metric::read_char_metrics (Data_file &input, int size)
65 while (!input.eof_b ())
67 input.gobble_leading_white ();
68 String s= input.get_line ();
69 if (s == "EndCharMetrics")
71 Adobe_font_char_metric afm_char =read_char_metric (s, size);
72 char_metrics_.push (afm_char);
73 int i = char_metrics_.size ()-1;
74 ascii_to_metric_idx_ [afm_char.C_] = i;
75 name_to_metric_dict_ [afm_char.N_] = i;
79 #define READSTRING(k) if (key == #k) { \
80 afm.k ## _ = input.get_line (); continue; }
81 #define READBOX(b) if (key == #b) { \
82 afm.b ## _ = read_box (input); continue; }
83 #define READREAL(r) if (key == #r) { \
84 afm.r ## _ = read_real (input); continue; }
87 read_real(Data_file &d)
89 String s = d.get_word ();
96 read_box ( Data_file &d)
99 b[X_AXIS][SMALLER] = read_real (d);
100 b[Y_AXIS][SMALLER] = read_real (d);
101 b[X_AXIS][BIGGER] = read_real (d);
102 b[Y_AXIS][BIGGER] = read_real (d);
107 read_afm_file (String fn)
109 Data_file input (fn);
111 assert (!input.eof_b ());
113 int i = fn.index_i(".afm");
114 for (; i>0 && isdigit(fn[--i]); )
116 int font_size = String_convert::dec2_i(fn.cut_str(i+1,INT_MAX));
118 Adobe_font_metric afm;
120 for (i=0; i < 256; i++)
122 afm.ascii_to_metric_idx_.push (-1);
125 while (!input.eof_b ())
127 input.gobble_leading_white ();
128 String w = input.get_word ();
129 if (w == "StartFontMetrics")
134 while (!input.eof_b ())
136 input.gobble_leading_white ();
137 String key = input.get_word ();
138 if (key == "Comment")
141 READSTRING(FontName);
142 READSTRING(FullName);
143 READSTRING(FamilyName);
147 READSTRING(EncodingScheme);
148 READREAL(ItalicAngle);
149 READREAL(UnderlineThickness);
150 READREAL(UnderlinePosition);
152 if (key == "StartCharMetrics")
155 afm.read_char_metrics (input, font_size);
157 if (key == "EndFontMetrics")