/[public]/psiconv/trunk/lib/psiconv/generate_common.c
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Contents of /psiconv/trunk/lib/psiconv/generate_common.c

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Revision 79 - (show annotations)
Mon Dec 25 22:25:33 2000 UTC (18 years, 11 months ago) by frodo
File MIME type: text/plain
File size: 11897 byte(s)
(Frodo) Added a complete buffer abstraction

1 /*
2 generate_common.c - Part of psiconv, a PSION 5 file formats converter
3 Copyright (c) 2000 Frodo Looijaard <frodol@dds.nl>
4
5 This program is free software; you can redistribute it and/or modify
6 it under the terms of the GNU General Public License as published by
7 the Free Software Foundation; either version 2 of the License, or
8 (at your option) any later version.
9
10 This program is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 GNU General Public License for more details.
14
15 You should have received a copy of the GNU General Public License
16 along with this program; if not, write to the Free Software
17 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
18 */
19
20 #include "config.h"
21 #include "compat.h"
22 #include <stdlib.h>
23 #include <string.h>
24
25 #include "generate_routines.h"
26 #include "error.h"
27
28 static int psiconv_write_layout_section(psiconv_buffer buf,
29 const psiconv_text_and_layout value,
30 const psiconv_word_styles_section styles,
31 int with_styles);
32
33 /* Maybe use a psiconv_header_section variable instead? */
34 int psiconv_write_header_section(psiconv_buffer buf,psiconv_u32 uid1,
35 psiconv_u32 uid2, psiconv_u32 uid3)
36 {
37 int res;
38 if ((res = psiconv_write_u32(buf,uid1)))
39 return res;
40 if ((res = psiconv_write_u32(buf,uid2)))
41 return res;
42 if ((res = psiconv_write_u32(buf,uid3)))
43 return res;
44 return psiconv_write_u32(buf,psiconv_checkuid(uid1,uid2,uid3));
45 }
46
47 int psiconv_write_section_table_section(psiconv_buffer buf,
48 const psiconv_section_table_section value)
49 {
50 int res,i;
51 psiconv_section_table_entry entry;
52
53 if (!value) {
54 psiconv_warn(0,psiconv_buffer_length(buf),"Null section table section");
55 return -PSICONV_E_GENERATE;
56 }
57
58 if ((res = psiconv_write_u8(buf,2 * psiconv_list_length(value))))
59 return res;
60 for (i = 0; i < psiconv_list_length(value); i++) {
61 if (!(entry = psiconv_list_get(value,i))) {
62 psiconv_warn(0,psiconv_buffer_length(buf),"Massive memory corruption");
63 return -PSICONV_E_NOMEM;
64 }
65 if ((res = psiconv_write_u32(buf,entry->id)))
66 return res;
67 if ((res = psiconv_write_u32(buf,entry->offset)))
68 return res;
69 }
70 return -PSICONV_E_OK;
71 }
72
73 int psiconv_write_application_id_section(psiconv_buffer buf,psiconv_u32 id,
74 const psiconv_string_t text)
75 {
76 int res;
77 if ((res = psiconv_write_u32(buf,id)))
78 return res;
79 return psiconv_write_string(buf,text);
80 }
81
82 int psiconv_write_text_section(psiconv_buffer buf,
83 const psiconv_text_and_layout value)
84 {
85 int res;
86 psiconv_buffer extra_buf;
87 int i,j;
88 psiconv_paragraph paragraph;
89
90 if (!value) {
91 psiconv_warn(0,psiconv_buffer_length(buf),"Null text section");
92 return -PSICONV_E_GENERATE;
93 }
94
95 if (!(extra_buf = psiconv_buffer_new(0)))
96 return -PSICONV_E_NOMEM;
97 for (i = 0; i < psiconv_list_length(value); i++) {
98 if (!(paragraph = psiconv_list_get(value,i))) {
99 psiconv_warn(0,psiconv_buffer_length(buf),"Massive memory corruption");
100 res = -PSICONV_E_OTHER;
101 goto ERROR;
102 }
103 for (j = 0; j < strlen(paragraph->text); j++)
104 if ((res = psiconv_write_u8(extra_buf,paragraph->text[j])))
105 goto ERROR;
106 psiconv_write_u8(extra_buf,0x06);
107 }
108 if ((res = psiconv_write_X(buf,psiconv_buffer_length(extra_buf))))
109 goto ERROR;
110 res = psiconv_buffer_concat(buf,extra_buf);
111
112 ERROR:
113 psiconv_buffer_free(extra_buf);
114 return res;
115 }
116
117 int psiconv_write_layout_section(psiconv_buffer buf,
118 const psiconv_text_and_layout value,
119 const psiconv_word_styles_section styles,
120 int with_styles)
121 {
122 typedef struct psiconv_paragraph_type_list_s
123 {
124 psiconv_character_layout character;
125 psiconv_paragraph_layout paragraph;
126 psiconv_u8 style;
127 psiconv_u8 nr;
128 } *psiconv_paragraph_type_list;
129 psiconv_list paragraph_type_list; /* Of psiconv_paragraph_type_list_s */
130 psiconv_paragraph_type_list paragraph_type;
131 struct psiconv_paragraph_type_list_s new_type;
132 psiconv_buffer buf_types,buf_elements,buf_inlines;
133 psiconv_paragraph paragraph;
134 psiconv_in_line_layout in_line;
135 psiconv_word_style style;
136 int i,j,para_type,nr_of_inlines=0,res;
137
138 if (!value) {
139 psiconv_warn(0,psiconv_buffer_length(buf),"Null text section");
140 return -PSICONV_E_GENERATE;
141 }
142
143 if (!(paragraph_type_list = psiconv_list_new(sizeof(new_type)))) {
144 res = -PSICONV_E_NOMEM;
145 goto ERROR1;
146 }
147
148 if (!(buf_types = psiconv_buffer_new(0))) {
149 res = -PSICONV_E_NOMEM;
150 goto ERROR2;
151 }
152
153 if (!(buf_elements = psiconv_buffer_new(0))) {
154 res = -PSICONV_E_NOMEM;
155 goto ERROR3;
156 }
157
158 if (!(buf_inlines = psiconv_buffer_new(0))) {
159 res = -PSICONV_E_NOMEM;
160 goto ERROR4;
161 }
162
163 for (i = 0; i < psiconv_list_length(value); i++) {
164 if (!(paragraph = psiconv_list_get(value,i))) {
165 psiconv_warn(0,psiconv_buffer_length(buf),"Massive memory corruption");
166 res = -PSICONV_E_OTHER;
167 goto ERROR5;
168 }
169 if ((res = psiconv_write_u32(buf_elements,strlen(paragraph->text)+1)))
170 goto ERROR5;
171
172 if (psiconv_list_length(paragraph->in_lines)) {
173 /* Inline layouts, so we generate a paragraph element and inline
174 elements */
175 if ((res = psiconv_write_u32(buf_elements,0x00)))
176 goto ERROR5;
177 if (!(style = psiconv_get_style(styles,paragraph->base_style))) {
178 psiconv_warn(0,psiconv_buffer_length(buf),"Unknown style");
179 res = -PSICONV_E_GENERATE;
180 goto ERROR5;
181 }
182 if ((res = psiconv_write_paragraph_layout_list(buf_elements,
183 paragraph->base_paragraph,
184 style->paragraph)))
185 goto ERROR5;
186 if (with_styles)
187 if ((res = psiconv_write_u8(buf_elements,paragraph->base_style)))
188 goto ERROR5;
189 if ((res = psiconv_write_u32(buf_elements,
190 psiconv_list_length(paragraph->in_lines))))
191 goto ERROR5;
192
193 /* Generate the inlines. NB: Against what are all settings relative?!? */
194 for (j = 0; j < psiconv_list_length(paragraph->in_lines); j++) {
195 nr_of_inlines ++;
196 if (!(in_line = psiconv_list_get(paragraph->in_lines,j))) {
197 psiconv_warn(0,psiconv_buffer_length(buf),"Massive memory corruption");
198 res = -PSICONV_E_OTHER;
199 goto ERROR5;
200 }
201 if ((res = psiconv_write_u8(buf_inlines,0x00)))
202 goto ERROR5;
203 if ((res = psiconv_write_u32(buf_inlines,in_line->length)))
204 goto ERROR5;
205 if ((res = psiconv_write_character_layout_list(buf_elements,
206 in_line->layout,
207 style->character)))
208 goto ERROR5;
209 }
210 } else {
211 /* No inline layouts, so we generate a paragraph type list */
212 para_type = 0;
213 for (j = 0; j < psiconv_list_length(paragraph_type_list); j++) {
214 if (!(paragraph_type = psiconv_list_get(paragraph_type_list,j))) {
215 psiconv_warn(0,psiconv_buffer_length(buf),"Massive memory corruption");
216 res = -PSICONV_E_OTHER;
217 goto ERROR5;
218 }
219 if ((paragraph->base_style == paragraph_type->style) &&
220 !psiconv_compare_character_layout(paragraph->base_character,
221 paragraph_type->character) &&
222 !psiconv_compare_paragraph_layout(paragraph->base_paragraph,
223 paragraph_type->paragraph)) {
224 para_type = paragraph_type->nr;
225 break;
226 }
227 }
228 if (!para_type) {
229 /* We need to add a new entry */
230 para_type = new_type.nr = j+1;
231 /* No need to copy them, we won't change them anyway */
232 new_type.paragraph = paragraph->base_paragraph;
233 new_type.character = paragraph->base_character;
234 new_type.style = paragraph->base_style;
235 paragraph_type = &new_type;
236 if ((res = psiconv_list_add(paragraph_type_list,paragraph_type)))
237 goto ERROR5;
238 if ((res = psiconv_write_u32(buf_types,paragraph_type->nr)))
239 goto ERROR5;
240 if (!(style = psiconv_get_style(styles,paragraph_type->style))) {
241 psiconv_warn(0,psiconv_buffer_length(buf),"Unknown style");
242 res = -PSICONV_E_GENERATE;
243 goto ERROR5;
244 }
245 if ((res = psiconv_write_paragraph_layout_list(buf_types,
246 paragraph_type->paragraph,style->paragraph)))
247 goto ERROR5;
248 if (with_styles)
249 if ((res = psiconv_write_u8(buf_types,paragraph_type->style)))
250 goto ERROR5;
251 if ((res = psiconv_write_character_layout_list(buf_types,
252 paragraph_type->character,style->character)))
253 goto ERROR5;
254 }
255 if ((res = psiconv_write_u8(buf_elements,para_type)))
256 goto ERROR5;
257 }
258 }
259
260 /* Now append everything */
261 if ((res = psiconv_write_u8(buf,with_styles?0x00:0x01)))
262 goto ERROR5;
263 if ((res = psiconv_write_u8(buf,0x00)))
264 goto ERROR5;
265 if ((res = psiconv_write_u8(buf,psiconv_list_length(paragraph_type_list))))
266 goto ERROR5;
267 if ((res = psiconv_buffer_concat(buf,buf_types)))
268 goto ERROR5;
269 if ((res = psiconv_write_u32(buf,psiconv_list_length(value))))
270 goto ERROR5;
271 if ((res = psiconv_buffer_concat(buf,buf_elements)))
272 goto ERROR5;
273 if ((res = psiconv_write_u32(buf,nr_of_inlines)))
274 goto ERROR5;
275 res = psiconv_buffer_concat(buf,buf_inlines);
276
277 ERROR5:
278 psiconv_buffer_free(buf_inlines);
279 ERROR4:
280 psiconv_buffer_free(buf_elements);
281 ERROR3:
282 psiconv_buffer_free(buf_types);
283 ERROR2:
284 psiconv_list_free(paragraph_type_list);
285 ERROR1:
286 return res;
287 }
288
289 int psiconv_write_styled_layout_section(psiconv_buffer buf,
290 psiconv_text_and_layout result,
291 psiconv_word_styles_section styles)
292 {
293 return psiconv_write_layout_section(buf,result,styles,1);
294 }
295
296 int psiconv_write_styleless_layout_section(psiconv_buffer buf,
297 const psiconv_text_and_layout value,
298 const psiconv_character_layout base_char,
299 const psiconv_paragraph_layout base_para)
300 {
301 int res = 0;
302 psiconv_word_styles_section styles_section;
303
304 if (!(styles_section = malloc(sizeof(*styles_section))))
305 goto ERROR1;
306 if (!(styles_section->normal = malloc(sizeof(*styles_section->normal))))
307 goto ERROR2;
308 if (!(styles_section->normal->character =
309 psiconv_clone_character_layout(base_char)))
310 goto ERROR3;
311 if (!(styles_section->normal->paragraph =
312 psiconv_clone_paragraph_layout(base_para)))
313 goto ERROR4;
314 styles_section->normal->hotkey = 0;
315 if (!(styles_section->normal->name = strdup("")))
316 goto ERROR5;
317 if (!(styles_section->styles = psiconv_list_new(sizeof(
318 struct psiconv_word_style_s))))
319 goto ERROR6;
320
321 res = psiconv_write_layout_section(buf,value,styles_section,0);
322 psiconv_free_word_styles_section(styles_section);
323 return res;
324
325 ERROR6:
326 free(styles_section->normal->name);
327 ERROR5:
328 psiconv_free_paragraph_layout(styles_section->normal->paragraph);
329 ERROR4:
330 psiconv_free_character_layout(styles_section->normal->character);
331 ERROR3:
332 free(styles_section->normal);
333 ERROR2:
334 free(styles_section);
335 ERROR1:
336 if (!res)
337 return -PSICONV_E_NOMEM;
338 else
339 return res;
340 }

frodo@frodo.looijaard.name
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