1 /* PSPP - a program for statistical analysis.
2 Copyright (C) 2017, 2018 Free Software Foundation, Inc.
4 This program is free software: you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation, either version 3 of the License, or
7 (at your option) any later version.
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
14 You should have received a copy of the GNU General Public License
15 along with this program. If not, see <http://www.gnu.org/licenses/>. */
19 #include "output/spv/spv.h"
23 #include <libxml/HTMLparser.h>
24 #include <libxml/xmlreader.h>
28 #include "libpspp/assertion.h"
29 #include "libpspp/cast.h"
30 #include "libpspp/hash-functions.h"
31 #include "libpspp/message.h"
32 #include "libpspp/str.h"
33 #include "libpspp/zip-reader.h"
34 #include "output/page-setup-item.h"
35 #include "output/pivot-table.h"
36 #include "output/spv/detail-xml-parser.h"
37 #include "output/spv/light-binary-parser.h"
38 #include "output/spv/spv-css-parser.h"
39 #include "output/spv/spv-legacy-data.h"
40 #include "output/spv/spv-legacy-decoder.h"
41 #include "output/spv/spv-light-decoder.h"
42 #include "output/spv/spv-table-look.h"
43 #include "output/spv/structure-xml-parser.h"
45 #include "gl/c-ctype.h"
46 #include "gl/intprops.h"
47 #include "gl/minmax.h"
48 #include "gl/xalloc.h"
49 #include "gl/xvasprintf.h"
53 #define _(msgid) gettext (msgid)
54 #define N_(msgid) (msgid)
58 struct string zip_errs;
59 struct zip_reader *zip;
60 struct spv_item *root;
61 struct page_setup *page_setup;
64 const struct page_setup *
65 spv_get_page_setup (const struct spv_reader *spv)
67 return spv->page_setup;
71 spv_item_type_to_string (enum spv_item_type type)
75 case SPV_ITEM_HEADING: return "heading";
76 case SPV_ITEM_TEXT: return "text";
77 case SPV_ITEM_TABLE: return "table";
78 case SPV_ITEM_GRAPH: return "graph";
79 case SPV_ITEM_MODEL: return "model";
80 case SPV_ITEM_OBJECT: return "object";
81 default: return "**error**";
86 spv_item_class_to_string (enum spv_item_class class)
90 #define SPV_CLASS(ENUM, NAME) case SPV_CLASS_##ENUM: return NAME;
98 spv_item_class_from_string (const char *name)
100 #define SPV_CLASS(ENUM, NAME) \
101 if (!strcmp (name, NAME)) return SPV_CLASS_##ENUM;
105 return (enum spv_item_class) SPV_N_CLASSES;
109 spv_item_get_type (const struct spv_item *item)
115 spv_item_get_class (const struct spv_item *item)
117 const char *label = spv_item_get_label (item);
123 case SPV_ITEM_HEADING:
124 return SPV_CLASS_HEADINGS;
127 return (!strcmp (label, "Title") ? SPV_CLASS_OUTLINEHEADERS
128 : !strcmp (label, "Log") ? SPV_CLASS_LOGS
129 : !strcmp (label, "Page Title") ? SPV_CLASS_PAGETITLE
133 return (!strcmp (label, "Warnings") ? SPV_CLASS_WARNINGS
134 : !strcmp (label, "Notes") ? SPV_CLASS_NOTES
138 return SPV_CLASS_CHARTS;
141 return SPV_CLASS_MODELS;
143 case SPV_ITEM_OBJECT:
144 return SPV_CLASS_OTHER;
147 return SPV_CLASS_TREES;
150 return SPV_CLASS_UNKNOWN;
155 spv_item_get_label (const struct spv_item *item)
161 spv_item_is_heading (const struct spv_item *item)
163 return item->type == SPV_ITEM_HEADING;
167 spv_item_get_n_children (const struct spv_item *item)
169 return item->n_children;
173 spv_item_get_child (const struct spv_item *item, size_t idx)
175 assert (idx < item->n_children);
176 return item->children[idx];
180 spv_item_is_table (const struct spv_item *item)
182 return item->type == SPV_ITEM_TABLE;
186 spv_item_is_text (const struct spv_item *item)
188 return item->type == SPV_ITEM_TEXT;
191 const struct pivot_value *
192 spv_item_get_text (const struct spv_item *item)
194 assert (spv_item_is_text (item));
199 spv_item_next (const struct spv_item *item)
201 if (item->n_children)
202 return item->children[0];
206 size_t idx = item->parent_idx + 1;
208 if (idx < item->n_children)
209 return item->children[idx];
215 const struct spv_item *
216 spv_item_get_parent (const struct spv_item *item)
222 spv_item_get_level (const struct spv_item *item)
225 for (; item->parent; item = item->parent)
231 spv_item_get_command_id (const struct spv_item *item)
233 return item->command_id;
237 spv_item_get_subtype (const struct spv_item *item)
239 return item->subtype;
243 spv_item_is_visible (const struct spv_item *item)
245 return item->visible;
249 spv_item_destroy (struct spv_item *item)
253 free (item->structure_member);
256 free (item->command_id);
258 for (size_t i = 0; i < item->n_children; i++)
259 spv_item_destroy (item->children[i]);
260 free (item->children);
262 pivot_table_unref (item->table);
263 spv_table_look_destroy (item->table_look);
264 free (item->bin_member);
265 free (item->xml_member);
266 free (item->subtype);
268 pivot_value_destroy (item->text);
270 free (item->object_type);
278 spv_heading_add_child (struct spv_item *parent, struct spv_item *child)
280 assert (parent->type == SPV_ITEM_HEADING);
281 assert (!child->parent);
283 child->parent = parent;
284 child->parent_idx = parent->n_children;
286 if (parent->n_children >= parent->allocated_children)
287 parent->children = x2nrealloc (parent->children,
288 &parent->allocated_children,
289 sizeof *parent->children);
290 parent->children[parent->n_children++] = child;
294 find_xml_child_element (xmlNode *parent, const char *child_name)
296 for (xmlNode *node = parent->children; node; node = node->next)
297 if (node->type == XML_ELEMENT_NODE
299 && !strcmp (CHAR_CAST (char *, node->name), child_name))
306 get_xml_attr (const xmlNode *node, const char *name)
308 return CHAR_CAST (char *, xmlGetProp (node, CHAR_CAST (xmlChar *, name)));
312 put_xml_attr (const char *name, const char *value, struct string *dst)
317 ds_put_format (dst, " %s=\"", name);
318 for (const char *p = value; *p; p++)
323 ds_put_cstr (dst, " ");
326 ds_put_cstr (dst, "&");
329 ds_put_cstr (dst, "<");
332 ds_put_cstr (dst, ">");
335 ds_put_cstr (dst, """);
338 ds_put_byte (dst, *p);
342 ds_put_byte (dst, '"');
346 extract_html_text (const xmlNode *node, int base_font_size, struct string *s)
348 if (node->type == XML_ELEMENT_NODE)
350 const char *name = CHAR_CAST (char *, node->name);
351 if (!strcmp (name, "br"))
352 ds_put_byte (s, '\n');
353 else if (strcmp (name, "style"))
355 const char *tag = NULL;
356 if (strchr ("biu", name[0]) && name[1] == '\0')
359 ds_put_format (s, "<%s>", tag);
361 else if (!strcmp (name, "font"))
364 ds_put_format (s, "<%s", tag);
366 char *face = get_xml_attr (node, "face");
367 put_xml_attr ("face", face, s);
370 char *color = get_xml_attr (node, "color");
374 put_xml_attr ("color", color, s);
378 if (sscanf (color, "rgb (%"SCNu8", %"SCNu8", %"SCNu8")",
382 snprintf (color2, sizeof color2,
383 "#%02"PRIx8"%02"PRIx8"%02"PRIx8,
385 put_xml_attr ("color", color2, s);
391 char *size_s = get_xml_attr (node, "size");
392 int html_size = size_s ? atoi (size_s) : 0;
394 if (html_size >= 1 && html_size <= 7)
396 static const double scale[7] = {
397 .444, .556, .667, .778, 1.0, 1.33, 2.0
399 double size = base_font_size * scale[html_size - 1];
401 char size2[INT_BUFSIZE_BOUND (int)];
402 snprintf (size2, sizeof size2, "%.0f", size * 1024.);
403 put_xml_attr ("size", size2, s);
406 ds_put_cstr (s, ">");
408 for (const xmlNode *child = node->children; child;
410 extract_html_text (child, base_font_size, s);
412 ds_put_format (s, "</%s>", tag);
415 else if (node->type == XML_TEXT_NODE)
417 /* U+00A0 NONBREAKING SPACE is really, really common in SPV text and it
418 makes it impossible to break syntax across lines. Translate it into a
419 regular space. (Note that U+00A0 is C2 A0 in UTF-8.)
421 Do the same for U+2007 FIGURE SPACE, which also crops out weirdly
423 ds_extend (s, ds_length (s) + xmlStrlen (node->content));
424 for (const uint8_t *p = node->content; *p;)
427 if (p[0] == 0xc2 && p[1] == 0xa0)
432 else if (p[0] == 0xe2 && p[1] == 0x80 && p[2] == 0x87)
442 int last = ds_last (s);
443 if (last != EOF && !c_isspace (last))
447 ds_put_cstr (s, "<");
449 ds_put_cstr (s, ">");
451 ds_put_cstr (s, "&");
459 parse_embedded_html (const xmlNode *node)
461 /* Extract HTML from XML node. */
462 char *html_s = CHAR_CAST (char *, xmlNodeGetContent (node));
466 xmlDoc *html_doc = htmlReadMemory (
467 html_s, strlen (html_s),
468 NULL, "UTF-8", (HTML_PARSE_RECOVER | HTML_PARSE_NOERROR
469 | HTML_PARSE_NOWARNING | HTML_PARSE_NOBLANKS
470 | HTML_PARSE_NONET));
476 /* Given NODE, which should contain HTML content, returns the text within that
477 content as an allocated string. The caller must eventually free the
478 returned string (with xmlFree()). */
480 decode_embedded_html (const xmlNode *node, struct font_style *font_style)
482 struct string markup = DS_EMPTY_INITIALIZER;
483 *font_style = (struct font_style) FONT_STYLE_INITIALIZER;
484 font_style->size = 10;
486 xmlDoc *html_doc = parse_embedded_html (node);
489 xmlNode *root = xmlDocGetRootElement (html_doc);
490 xmlNode *head = root ? find_xml_child_element (root, "head") : NULL;
491 xmlNode *style = head ? find_xml_child_element (head, "style") : NULL;
494 uint8_t *style_s = xmlNodeGetContent (style);
495 spv_parse_css_style (CHAR_CAST (char *, style_s), font_style);
500 extract_html_text (root, font_style->size, &markup);
501 xmlFreeDoc (html_doc);
504 font_style->markup = true;
505 return ds_steal_cstr (&markup);
509 xstrdup_if_nonempty (const char *s)
511 return s && s[0] ? xstrdup (s) : NULL;
515 decode_container_text (const struct spvsx_container_text *ct,
516 struct spv_item *item)
518 item->type = SPV_ITEM_TEXT;
519 item->command_id = xstrdup_if_nonempty (ct->command_name);
521 item->text = xzalloc (sizeof *item->text);
522 item->text->type = PIVOT_VALUE_TEXT;
523 item->text->font_style = xmalloc (sizeof *item->text->font_style);
524 item->text->text.local = decode_embedded_html (ct->html->node_.raw,
525 item->text->font_style);
529 decode_page_p (const xmlNode *in, struct page_paragraph *out)
531 char *style = get_xml_attr (in, "style");
532 out->halign = (style && strstr (style, "center") ? TABLE_HALIGN_CENTER
533 : style && strstr (style, "right") ? TABLE_HALIGN_RIGHT
534 : TABLE_HALIGN_LEFT);
537 struct font_style font_style;
538 out->markup = decode_embedded_html (in, &font_style);
539 font_style_uninit (&font_style);
543 decode_page_paragraph (const struct spvsx_page_paragraph *page_paragraph,
544 struct page_heading *ph)
546 memset (ph, 0, sizeof *ph);
548 const struct spvsx_page_paragraph_text *page_paragraph_text
549 = page_paragraph->page_paragraph_text;
550 if (!page_paragraph_text)
553 xmlDoc *html_doc = parse_embedded_html (page_paragraph_text->node_.raw);
557 xmlNode *root = xmlDocGetRootElement (html_doc);
558 xmlNode *body = find_xml_child_element (root, "body");
560 for (const xmlNode *node = body->children; node; node = node->next)
561 if (node->type == XML_ELEMENT_NODE
562 && !strcmp (CHAR_CAST (const char *, node->name), "p"))
564 ph->paragraphs = xrealloc (ph->paragraphs,
565 (ph->n + 1) * sizeof *ph->paragraphs);
566 decode_page_p (node, &ph->paragraphs[ph->n++]);
568 xmlFreeDoc (html_doc);
572 spv_item_load (const struct spv_item *item)
574 if (spv_item_is_table (item))
575 spv_item_get_table (item);
579 spv_item_is_light_table (const struct spv_item *item)
581 return item->type == SPV_ITEM_TABLE && !item->xml_member;
584 char * WARN_UNUSED_RESULT
585 spv_item_get_raw_light_table (const struct spv_item *item,
586 void **data, size_t *size)
588 return zip_member_read_all (item->spv->zip, item->bin_member, data, size);
591 char * WARN_UNUSED_RESULT
592 spv_item_get_light_table (const struct spv_item *item,
593 struct spvlb_table **tablep)
597 if (!spv_item_is_light_table (item))
598 return xstrdup ("not a light binary table object");
602 char *error = spv_item_get_raw_light_table (item, &data, &size);
606 struct spvbin_input input;
607 spvbin_input_init (&input, data, size);
609 struct spvlb_table *table = NULL;
611 ? xasprintf ("light table member is empty")
612 : !spvlb_parse_table (&input, &table)
613 ? spvbin_input_to_error (&input, NULL)
614 : input.ofs != input.size
615 ? xasprintf ("expected end of file at offset %#zx", input.ofs)
619 struct string s = DS_EMPTY_INITIALIZER;
620 spv_item_format_path (item, &s);
621 ds_put_format (&s, " (%s): %s", item->bin_member, error);
624 error = ds_steal_cstr (&s);
633 pivot_table_open_light (struct spv_item *item)
635 assert (spv_item_is_light_table (item));
637 struct spvlb_table *raw_table;
638 char *error = spv_item_get_light_table (item, &raw_table);
640 error = decode_spvlb_table (raw_table, &item->table);
641 spvlb_free_table (raw_table);
647 spv_item_is_legacy_table (const struct spv_item *item)
649 return item->type == SPV_ITEM_TABLE && item->xml_member;
652 char * WARN_UNUSED_RESULT
653 spv_item_get_raw_legacy_data (const struct spv_item *item,
654 void **data, size_t *size)
656 if (!spv_item_is_legacy_table (item))
657 return xstrdup ("not a legacy table object");
659 return zip_member_read_all (item->spv->zip, item->bin_member, data, size);
662 char * WARN_UNUSED_RESULT
663 spv_item_get_legacy_data (const struct spv_item *item, struct spv_data *data)
667 char *error = spv_item_get_raw_legacy_data (item, &raw, &size);
670 error = spv_legacy_data_decode (raw, size, data);
677 static char * WARN_UNUSED_RESULT
678 spv_read_xml_member (struct spv_reader *spv, const char *member_name,
679 bool keep_blanks, const char *root_element_name,
684 struct zip_member *zm = zip_member_open (spv->zip, member_name);
686 return ds_steal_cstr (&spv->zip_errs);
688 xmlParserCtxt *parser;
689 xmlKeepBlanksDefault (keep_blanks);
690 parser = xmlCreatePushParserCtxt(NULL, NULL, NULL, 0, NULL);
693 zip_member_finish (zm);
694 return xasprintf (_("%s: Failed to create XML parser"), member_name);
699 while ((retval = zip_member_read (zm, buf, sizeof buf)) > 0)
700 xmlParseChunk (parser, buf, retval, false);
701 xmlParseChunk (parser, NULL, 0, true);
703 xmlDoc *doc = parser->myDoc;
704 bool well_formed = parser->wellFormed;
705 xmlFreeParserCtxt (parser);
709 char *error = ds_steal_cstr (&spv->zip_errs);
710 zip_member_finish (zm);
714 zip_member_finish (zm);
719 return xasprintf(_("%s: document is not well-formed"), member_name);
722 const xmlNode *root_node = xmlDocGetRootElement (doc);
723 assert (root_node->type == XML_ELEMENT_NODE);
724 if (strcmp (CHAR_CAST (char *, root_node->name), root_element_name))
727 return xasprintf(_("%s: root node is \"%s\" but \"%s\" was expected"),
729 CHAR_CAST (char *, root_node->name), root_element_name);
736 char * WARN_UNUSED_RESULT
737 spv_item_get_legacy_table (const struct spv_item *item, xmlDoc **docp)
739 assert (spv_item_is_legacy_table (item));
741 return spv_read_xml_member (item->spv, item->xml_member, false,
742 "visualization", docp);
745 char * WARN_UNUSED_RESULT
746 spv_item_get_structure (const struct spv_item *item, struct _xmlDoc **docp)
748 return spv_read_xml_member (item->spv, item->structure_member, false,
753 identify_item (const struct spv_item *item)
755 return (item->label ? item->label
756 : item->command_id ? item->command_id
757 : spv_item_type_to_string (item->type));
761 spv_item_format_path (const struct spv_item *item, struct string *s)
763 enum { MAX_STACK = 32 };
764 const struct spv_item *stack[MAX_STACK];
767 while (item != NULL && item->parent && n < MAX_STACK)
776 ds_put_byte (s, '/');
778 const char *name = identify_item (item);
779 ds_put_cstr (s, name);
785 for (size_t i = 0; i < item->parent->n_children; i++)
787 const struct spv_item *sibling = item->parent->children[i];
790 else if (!strcmp (name, identify_item (sibling)))
794 ds_put_format (s, "[%zu]", index);
799 static char * WARN_UNUSED_RESULT
800 pivot_table_open_legacy (struct spv_item *item)
802 assert (spv_item_is_legacy_table (item));
804 struct spv_data data;
805 char *error = spv_item_get_legacy_data (item, &data);
808 struct string s = DS_EMPTY_INITIALIZER;
809 spv_item_format_path (item, &s);
810 ds_put_format (&s, " (%s): %s", item->bin_member, error);
813 return ds_steal_cstr (&s);
817 error = spv_read_xml_member (item->spv, item->xml_member, false,
818 "visualization", &doc);
821 spv_data_uninit (&data);
825 struct spvxml_context ctx = SPVXML_CONTEXT_INIT (ctx);
826 struct spvdx_visualization *v;
827 spvdx_parse_visualization (&ctx, xmlDocGetRootElement (doc), &v);
828 error = spvxml_context_finish (&ctx, &v->node_);
831 error = decode_spvdx_table (v, item->subtype, item->table_look,
832 &data, &item->table);
836 struct string s = DS_EMPTY_INITIALIZER;
837 spv_item_format_path (item, &s);
838 ds_put_format (&s, " (%s): %s", item->xml_member, error);
841 error = ds_steal_cstr (&s);
844 spv_data_uninit (&data);
845 spvdx_free_visualization (v);
853 spv_item_get_table (const struct spv_item *item_)
855 struct spv_item *item = CONST_CAST (struct spv_item *, item_);
857 assert (spv_item_is_table (item));
860 char *error = (item->xml_member
861 ? pivot_table_open_legacy (item)
862 : pivot_table_open_light (item));
866 msg (ME, "%s", error);
867 item->table = pivot_table_create_for_text (
868 pivot_value_new_text (N_("Error")),
869 pivot_value_new_user_text (error, -1));
877 /* Constructs a new spv_item from XML and stores it in *ITEMP. Returns NULL if
878 successful, otherwise an error message for the caller to use and free (with
881 XML should be a 'heading' or 'container' element. */
882 static char * WARN_UNUSED_RESULT
883 spv_decode_container (const struct spvsx_container *c,
884 const char *structure_member,
885 struct spv_item *parent)
887 struct spv_item *item = xzalloc (sizeof *item);
888 item->spv = parent->spv;
889 item->label = xstrdup (c->label->text);
890 item->visible = c->visibility == SPVSX_VISIBILITY_VISIBLE;
891 item->structure_member = xstrdup (structure_member);
893 assert (c->n_seq == 1);
894 struct spvxml_node *content = c->seq[0];
895 if (spvsx_is_container_text (content))
896 decode_container_text (spvsx_cast_container_text (content), item);
897 else if (spvsx_is_table (content))
899 item->type = SPV_ITEM_TABLE;
901 struct spvsx_table *table = spvsx_cast_table (content);
902 const struct spvsx_table_structure *ts = table->table_structure;
903 item->bin_member = xstrdup (ts->data_path->text);
904 item->command_id = xstrdup_if_nonempty (table->command_name);
905 item->subtype = xstrdup_if_nonempty (table->sub_type);
908 item->xml_member = ts->path ? xstrdup (ts->path->text) : NULL;
909 char *error = (table->table_properties
910 ? spv_table_look_decode (table->table_properties,
912 : xstrdup ("Legacy table lacks tableProperties"));
915 spv_item_destroy (item);
920 else if (spvsx_is_graph (content))
922 struct spvsx_graph *graph = spvsx_cast_graph (content);
923 item->type = SPV_ITEM_GRAPH;
924 item->command_id = xstrdup_if_nonempty (graph->command_name);
927 else if (spvsx_is_model (content))
929 struct spvsx_model *model = spvsx_cast_model (content);
930 item->type = SPV_ITEM_MODEL;
931 item->command_id = xstrdup_if_nonempty (model->command_name);
934 else if (spvsx_is_object (content))
936 struct spvsx_object *object = spvsx_cast_object (content);
937 item->type = SPV_ITEM_OBJECT;
938 item->object_type = xstrdup (object->type);
939 item->uri = xstrdup (object->uri);
941 else if (spvsx_is_image (content))
943 struct spvsx_image *image = spvsx_cast_image (content);
944 item->type = SPV_ITEM_OBJECT;
945 item->object_type = xstrdup ("image");
946 item->uri = xstrdup (image->data_path->text);
948 else if (spvsx_is_tree (content))
950 struct spvsx_tree *tree = spvsx_cast_tree (content);
951 item->type = SPV_ITEM_TREE;
952 item->object_type = xstrdup ("tree");
953 item->uri = xstrdup (tree->data_path->text);
958 spv_heading_add_child (parent, item);
962 static char * WARN_UNUSED_RESULT
963 spv_decode_children (struct spv_reader *spv, const char *structure_member,
964 struct spvxml_node **seq, size_t n_seq,
965 struct spv_item *parent)
967 for (size_t i = 0; i < n_seq; i++)
969 const struct spvxml_node *node = seq[i];
972 if (spvsx_is_container (node))
974 const struct spvsx_container *container
975 = spvsx_cast_container (node);
976 error = spv_decode_container (container, structure_member, parent);
978 else if (spvsx_is_heading (node))
980 const struct spvsx_heading *subheading = spvsx_cast_heading (node);
981 struct spv_item *subitem = xzalloc (sizeof *subitem);
982 subitem->structure_member = xstrdup (structure_member);
983 subitem->spv = parent->spv;
984 subitem->type = SPV_ITEM_HEADING;
985 subitem->label = xstrdup (subheading->label->text);
986 if (subheading->command_name)
987 subitem->command_id = xstrdup (subheading->command_name);
988 subitem->visible = !subheading->heading_visibility_present;
989 spv_heading_add_child (parent, subitem);
991 error = spv_decode_children (spv, structure_member,
992 subheading->seq, subheading->n_seq,
1005 static struct page_setup *
1006 decode_page_setup (const struct spvsx_page_setup *in, const char *file_name)
1008 struct page_setup *out = xmalloc (sizeof *out);
1009 *out = (struct page_setup) PAGE_SETUP_INITIALIZER;
1011 out->initial_page_number = in->initial_page_number;
1013 if (in->paper_width != DBL_MAX)
1014 out->paper[TABLE_HORZ] = in->paper_width;
1015 if (in->paper_height != DBL_MAX)
1016 out->paper[TABLE_VERT] = in->paper_height;
1018 if (in->margin_left != DBL_MAX)
1019 out->margins[TABLE_HORZ][0] = in->margin_left;
1020 if (in->margin_right != DBL_MAX)
1021 out->margins[TABLE_HORZ][1] = in->margin_right;
1022 if (in->margin_top != DBL_MAX)
1023 out->margins[TABLE_VERT][0] = in->margin_top;
1024 if (in->margin_bottom != DBL_MAX)
1025 out->margins[TABLE_VERT][1] = in->margin_bottom;
1027 if (in->space_after != DBL_MAX)
1028 out->object_spacing = in->space_after;
1031 out->chart_size = (in->chart_size == SPVSX_CHART_SIZE_FULL_HEIGHT
1032 ? PAGE_CHART_FULL_HEIGHT
1033 : in->chart_size == SPVSX_CHART_SIZE_HALF_HEIGHT
1034 ? PAGE_CHART_HALF_HEIGHT
1035 : in->chart_size == SPVSX_CHART_SIZE_QUARTER_HEIGHT
1036 ? PAGE_CHART_QUARTER_HEIGHT
1037 : PAGE_CHART_AS_IS);
1039 decode_page_paragraph (in->page_header->page_paragraph, &out->headings[0]);
1040 decode_page_paragraph (in->page_footer->page_paragraph, &out->headings[1]);
1042 out->file_name = xstrdup (file_name);
1047 static char * WARN_UNUSED_RESULT
1048 spv_heading_read (struct spv_reader *spv,
1049 const char *file_name, const char *member_name)
1052 char *error = spv_read_xml_member (spv, member_name, true, "heading", &doc);
1056 struct spvxml_context ctx = SPVXML_CONTEXT_INIT (ctx);
1057 struct spvsx_root_heading *root;
1058 spvsx_parse_root_heading (&ctx, xmlDocGetRootElement (doc), &root);
1059 error = spvxml_context_finish (&ctx, &root->node_);
1061 if (!error && root->page_setup)
1062 spv->page_setup = decode_page_setup (root->page_setup, file_name);
1064 for (size_t i = 0; !error && i < root->n_seq; i++)
1065 error = spv_decode_children (spv, member_name, root->seq, root->n_seq,
1070 char *s = xasprintf ("%s: %s", member_name, error);
1075 spvsx_free_root_heading (root);
1082 spv_get_root (const struct spv_reader *spv)
1088 spv_detect__ (struct zip_reader *zip, char **errorp)
1092 const char *member = "META-INF/MANIFEST.MF";
1093 if (!zip_reader_contains_member (zip, member))
1098 *errorp = zip_member_read_all (zip, "META-INF/MANIFEST.MF",
1103 const char *magic = "allowPivoting=true";
1104 bool is_spv = size == strlen (magic) && !memcmp (magic, data, size);
1110 /* Returns NULL if FILENAME is an SPV file, otherwise an error string that the
1111 caller must eventually free(). */
1112 char * WARN_UNUSED_RESULT
1113 spv_detect (const char *filename)
1115 struct string zip_error;
1116 struct zip_reader *zip = zip_reader_create (filename, &zip_error);
1118 return ds_steal_cstr (&zip_error);
1121 if (spv_detect__ (zip, &error) <= 0 && !error)
1122 error = xasprintf("%s: not an SPV file", filename);
1123 zip_reader_destroy (zip);
1124 ds_destroy (&zip_error);
1128 char * WARN_UNUSED_RESULT
1129 spv_open (const char *filename, struct spv_reader **spvp)
1133 struct spv_reader *spv = xzalloc (sizeof *spv);
1134 ds_init_empty (&spv->zip_errs);
1135 spv->zip = zip_reader_create (filename, &spv->zip_errs);
1138 char *error = ds_steal_cstr (&spv->zip_errs);
1144 int detect = spv_detect__ (spv->zip, &error);
1148 return error ? error : xasprintf("%s: not an SPV file", filename);
1151 spv->root = xzalloc (sizeof *spv->root);
1152 spv->root->spv = spv;
1153 spv->root->type = SPV_ITEM_HEADING;
1154 for (size_t i = 0; ; i++)
1156 const char *member_name = zip_reader_get_member_name (spv->zip, i);
1160 struct substring member_name_ss = ss_cstr (member_name);
1161 if (ss_starts_with (member_name_ss, ss_cstr ("outputViewer"))
1162 && ss_ends_with (member_name_ss, ss_cstr (".xml")))
1164 char *error = spv_heading_read (spv, filename, member_name);
1178 spv_close (struct spv_reader *spv)
1182 ds_destroy (&spv->zip_errs);
1183 zip_reader_destroy (spv->zip);
1184 spv_item_destroy (spv->root);
1185 page_setup_destroy (spv->page_setup);
1191 spv_item_set_table_look (struct spv_item *item,
1192 const struct spv_table_look *look)
1194 /* If this is a table, install the table look in it.
1196 (We can't just set item->table_look because light tables ignore it and
1197 legacy tables sometimes override it.) */
1198 if (spv_item_is_table (item))
1199 spv_table_look_install (look, spv_item_get_table (item));
1201 for (size_t i = 0; i < item->n_children; i++)
1202 spv_item_set_table_look (item->children[i], look);
1205 char * WARN_UNUSED_RESULT
1206 spv_decode_fmt_spec (uint32_t u32, struct fmt_spec *out)
1209 || (u32 == 0x10000 || u32 == 1 /* both used as string formats */))
1211 *out = fmt_for_output (FMT_F, 40, 2);
1215 uint8_t raw_type = u32 >> 16;
1216 uint8_t w = u32 >> 8;
1220 *out = (struct fmt_spec) { .type = FMT_F, .w = w, .d = d };
1221 bool ok = raw_type >= 40 || fmt_from_io (raw_type, &out->type);
1224 fmt_fix_output (out);
1225 ok = fmt_check_width_compat (out, 0);
1231 *out = fmt_for_output (FMT_F, 40, 2);
1232 return xasprintf ("bad format %#"PRIx32, u32);