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1 /*

2 * Internal header for the AFM library.

4 *

5 * Author: Markku Rossi <mtr@iki.fi>

6 */

8 /*

9 * This program is free software; you can redistribute it and/or modify

10 * it under the terms of the GNU General Public License as published by

11 * the Free Software Foundation; either version 2, or (at your option)

12 * any later version.

13 *

14 * This program is distributed in the hope that it will be useful,

15 * but WITHOUT ANY WARRANTY; without even the implied warranty of

16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the

17 * GNU General Public License for more details.

18 *

19 * You should have received a copy of the GNU General Public License

20 * along with this program; see the file COPYING. If not, write to

21 * the Free Software Foundation, 59 Temple Place - Suite 330,

22 * Boston, MA 02111-1307, USA.

23 */

25 #ifndef AFMINT_H

26 #define AFMINT_H

28 /*

29 * Config stuffs.

30 */

32 #ifdef HAVE_CONFIG_H

33 #include <config.h>

34 #endif

36 #include <stdio.h>

38 #ifndef ___P

39 #if PROTOTYPES

40 #define ___P(protos) protos

41 #else /* no PROTOTYPES */

42 #define ___P(protos) ()

43 #endif /* no PROTOTYPES */

44 #endif

46 #if STDC_HEADERS

48 #include <stdlib.h>

49 #include <string.h>

51 #else /* no STDC_HEADERS */

53 #if HAVE_STDLIB_H

54 #include <stdlib.h>

55 #endif

57 #if HAVE_STRING_H

58 #include <string.h>

59 #endif

61 #ifndef HAVE_STRCHR

62 #define strchr index

63 #define strrchr rindex

64 #endif

65 char *strchr ();

66 char *strrchr ();

68 #ifndef HAVE_MEMCPY

69 #define memcpy(d, s, n) bcopy((s), (d), (n))

70 #endif

72 #ifndef HAVE_STRERROR

73 extern char *strerror ___P ((int));

74 #endif

76 #endif /* no STDC_HEADERS */

78 #if HAVE_UNISTD_H

79 #include <unistd.h>

80 #endif

82 #include <setjmp.h>

83 #include <assert.h>

84 #include <errno.h>

86 #include <sys/types.h>

87 #include <sys/stat.h>

89 #include "afm.h"

90 #include "strhash.h"

93 /*

94 * Types and definitions.

95 */

97 /* Error codes. */

98 #define AFM_ERROR 1

99 #define AFM_ERROR_MEMORY 2

100 #define AFM_ERROR_ARGUMENT 3

101 #define AFM_ERROR_UNKNOWN_FONT 4

102 #define AFM_ERROR_SYNTAX 5

103 #define AFM_ERROR_UNSUPPORTED_FORMAT 6

104 #define AFM_ERROR_FILE_IO 7

105 #define AFM_ERROR_NOT_AFM_FILE 8

106 #define NUM_ERRORS 9

107

108 /* Pack error and global errno. */

109 #define SYSERROR(code) (errno << 16 | (code))

110

111

112 /* Keys. */

113

114 typedef enum

115 {

116 kComment,

117

118 /* File structure. */

119 kStartFontMetrics,

120 kEndFontMetrics,

121 kStartCompFontMetrics,

122 kEndCompFontMetrics,

123 kStartDescendent,

124 kEndDescendent,

125 kStartMasterFontMetrics,

126 kEndMasterFontMetrics,

127

128 /* Control information. */

129 kMetricsSets,

130 kDescendents,

131 kMasters,

132 kAxes,

133

134 /* Global font information. */

135 kFontName,

136 kFullName,

137 kFamilyName,

138 kWeight,

139 kFontBBox,

140 kVersion,

141 kNotice,

142 kEncodingScheme,

143 kMappingScheme,

144 kEscChar,

145 kCharacterSet,

146 kCharacters,

147 kIsBaseFont,

148 kVVector,

149 kIsFixedV,

150 kCapHeight,

151 kXHeight,

152 kAscender,

153 kDescender,

154 kWeightVector,

155 kBlendDesignPositions,

156 kBlendDesignMap,

157 kBlendAxisTypes,

158

159 /* Writing direction information. */

160 kStartDirection,

161 kEndDirection,

162 kUnderlinePosition,

163 kUnderlineThickness,

164 kItalicAngle,

165 kCharWidth,

166 kIsFixedPitch,

167

168 /* Individual character metrics. */

169 kStartCharMetrics,

170 kEndCharMetrics,

171 kC,

172 kCH,

173 kWX,

174 kW0X,

175 kW1X,

176 kWY,

177 kW0Y,

178 kW1Y,

179 kW,

180 kW0,

181 kW1,

182 kVV,

183 kN,

184 kB,

185 kL,

186

187 /* Kerning data. */

188 kStartKernData,

189 kEndKernData,

190 kStartTrackKern,

191 kEndTrackKern,

192 kTrackKern,

193 kStartKernPairs,

194 kEndKernPairs,

195 kKP,

196 kKPH,

197 kKPX,

198 kKPY,

199

200 /* Composite character data. */

201 kStartComposites,

202 kEndComposites,

203 kCC,

204 kPCC,

205

206 /* Axis information. */

207 kStartAxis,

208 kEndAxis,

209 kAxisType,

210 kAxisLabel,

211

212 /* Master Design Information */

213 kStartMaster,

214 kEndMaster

215

216 } AFMKey;

217

218

219 struct afm_handle_st

220 {

221 unsigned int verbose; /* verbose level */

222 StringHashPtr font_map; /* fontname -> AFM filename mapping */

223

224 /* Parse support. */

225 jmp_buf jmpbuf;

226 AFMError parse_error; /* Error that caused longjmp(). */

227 };

228

229

230 /* Store library's private font data to this structure. */

231 struct afm_font_private_data_st

232 {

233 /* Character that is used for undefined codes (' '). */

234 AFMIndividualCharacterMetrics *undef;

235

236 StringHashPtr fontnames; /* fontname -> character info mapping */

237 StringHashPtr compositenames; /* composite -> AFMComposite mapping */

238 };

239

240

241 /*

242 * Encoding tables.

243 */

244

245 struct encoding_table_st

246 {

247 int code;

248 char *character;

249 };

250

251 typedef struct encoding_table_st AFMEncodingTable;

252

253 extern AFMEncodingTable afm_88591_encoding[];

254 extern AFMEncodingTable afm_88592_encoding[];

255 extern AFMEncodingTable afm_88593_encoding[];

256 extern AFMEncodingTable afm_88594_encoding[];

257 extern AFMEncodingTable afm_88595_encoding[];

258 extern AFMEncodingTable afm_88597_encoding[];

259 extern AFMEncodingTable afm_88599_encoding[];

260 extern AFMEncodingTable afm_885910_encoding[];

261 extern AFMEncodingTable afm_ibmpc_encoding[];

262 extern AFMEncodingTable afm_mac_encoding[];

263 extern AFMEncodingTable afm_vms_encoding[];

264 extern AFMEncodingTable afm_hp8_encoding[];

265 extern AFMEncodingTable afm_koi8_encoding[];

266

267

268 /*

269 * Global help functions.

270 */

271

272 /* Print message if <level> is larger than library's verbose level. */

273 void afm_message ___P ((AFMHandle handle, unsigned int level, char *message));

274

275 /* Print error message to stderr. */

276 void afm_error ___P ((AFMHandle handle, char *message));

277

278 \f

279 /*

280 * AFM file parsing

281 */

282

283 /* Parse AFM file <filename> and fill up font <font>. */

284 void afm_parse_file ___P ((AFMHandle handle, const char *filename,

285 AFMFont font));

286

287 #endif /* not AFMINT_H */