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"
17 parse_box (Array<String> a)
21 b[X_AXIS][SMALLER] = a[i++].value_f ();
22 b[Y_AXIS][SMALLER] = a[i++].value_f ();
23 b[X_AXIS][BIGGER] = a[i++].value_f ();
24 b[Y_AXIS][BIGGER] = a[i++].value_f ();
29 strip_leading_white (String c)
34 c = c.cut_str (i, INT_MAX);
38 Adobe_font_char_metric
39 read_char_metric (String s)
41 Adobe_font_char_metric char_metric;
42 Array<String> a= String_convert::split_arr (s, ';');
43 for (int i=0; i < a.size (); i++)
45 String c = strip_leading_white (a[i]);
47 Array<String> b = String_convert::split_arr (c, ' ');
49 char_metric.C_ = b[1].value_i ();
51 char_metric.WX_ = b[1].value_f ();
53 char_metric.N_ = strip_leading_white (b[1]);
55 char_metric.B_ = parse_box (b.slice (1, b.size()));
61 Adobe_font_metric::read_char_metrics (Data_file &input)
63 while (!input.eof_b ())
65 input.gobble_leading_white ();
66 String s= input.get_line ();
67 if (s == "EndCharMetrics")
69 Adobe_font_char_metric afm_char =read_char_metric (s);
70 char_metrics_.push (afm_char);
71 int i = char_metrics_.size ()-1;
72 ascii_to_metric_idx_ [afm_char.C_] = i;
73 name_to_metric_dict_ [afm_char.N_] = i;
77 #define READSTRING(k) if (key == #k) { \
78 afm.k ## _ = input.get_line (); continue; }
79 #define READBOX(b) if (key == #b) { \
80 afm.b ## _ = read_box (input); continue; }
81 #define READREAL(r) if (key == #r) { \
82 afm.r ## _ = read_real (input); continue; }
85 read_real(Data_file &d)
87 String s = d.get_word ();
94 read_box ( Data_file &d)
97 b[X_AXIS][SMALLER] = read_real (d);
98 b[Y_AXIS][SMALLER] = read_real (d);
99 b[X_AXIS][BIGGER] = read_real (d);
100 b[Y_AXIS][BIGGER] = read_real (d);
105 read_afm_file (String fn)
107 Data_file input (fn);
109 assert (!input.eof_b ());
111 Adobe_font_metric afm;
113 for (int i=0; i < 256; i++)
115 afm.ascii_to_metric_idx_.push (-1);
118 while (!input.eof_b ())
120 input.gobble_leading_white ();
121 String w = input.get_word ();
122 if (w == "StartFontMetrics")
127 while (!input.eof_b ())
129 input.gobble_leading_white ();
130 String key = input.get_word ();
131 if (key == "Comment")
134 READSTRING(FontName);
135 READSTRING(FullName);
136 READSTRING(FamilyName);
140 READSTRING(EncodingScheme);
141 READREAL(ItalicAngle);
142 READREAL(UnderlineThickness);
143 READREAL(UnderlinePosition);
145 if (key == "StartCharMetrics")
148 afm.read_char_metrics (input);
150 if (key == "EndFontMetrics")