X-Git-Url: https://pintos-os.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=src%2Foutput%2Fspv%2Fspv.c;fp=src%2Foutput%2Fspv%2Fspv.c;h=3f5a743c82bcb298d99e357d3a31eb7ccfc65176;hb=bcaaee5f0bd21f443c8dcb5f67114e63d43673af;hp=0000000000000000000000000000000000000000;hpb=1abd7f599dd0d773add0a98fa3b612bc15aaf422;p=pspp
diff --git a/src/output/spv/spv.c b/src/output/spv/spv.c
new file mode 100644
index 0000000000..3f5a743c82
--- /dev/null
+++ b/src/output/spv/spv.c
@@ -0,0 +1,1181 @@
+/* PSPP - a program for statistical analysis.
+ Copyright (C) 2017, 2018 Free Software Foundation, Inc.
+
+ This program is free software: you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation, either version 3 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see . */
+
+#include
+
+#include "output/spv/spv.h"
+
+#include
+#include
+#include
+#include
+#include
+#include
+
+#include "libpspp/assertion.h"
+#include "libpspp/cast.h"
+#include "libpspp/hash-functions.h"
+#include "libpspp/message.h"
+#include "libpspp/str.h"
+#include "libpspp/zip-reader.h"
+#include "output/page-setup-item.h"
+#include "output/pivot-table.h"
+#include "output/spv/detail-xml-parser.h"
+#include "output/spv/light-binary-parser.h"
+#include "output/spv/spv-css-parser.h"
+#include "output/spv/spv-legacy-data.h"
+#include "output/spv/spv-legacy-decoder.h"
+#include "output/spv/spv-light-decoder.h"
+#include "output/spv/structure-xml-parser.h"
+
+#include "gl/c-ctype.h"
+#include "gl/intprops.h"
+#include "gl/minmax.h"
+#include "gl/xalloc.h"
+#include "gl/xvasprintf.h"
+#include "gl/xsize.h"
+
+#include "gettext.h"
+#define _(msgid) gettext (msgid)
+#define N_(msgid) (msgid)
+
+struct spv_reader
+ {
+ struct string zip_errs;
+ struct zip_reader *zip;
+ struct spv_item *root;
+ struct page_setup *page_setup;
+ };
+
+const struct page_setup *
+spv_get_page_setup (const struct spv_reader *spv)
+{
+ return spv->page_setup;
+}
+
+const char *
+spv_item_type_to_string (enum spv_item_type type)
+{
+ switch (type)
+ {
+ case SPV_ITEM_HEADING: return "heading";
+ case SPV_ITEM_TEXT: return "text";
+ case SPV_ITEM_TABLE: return "table";
+ case SPV_ITEM_GRAPH: return "graph";
+ case SPV_ITEM_MODEL: return "model";
+ case SPV_ITEM_OBJECT: return "object";
+ default: return "**error**";
+ }
+}
+
+const char *
+spv_item_class_to_string (enum spv_item_class class)
+{
+ switch (class)
+ {
+#define SPV_CLASS(ENUM, NAME) case SPV_CLASS_##ENUM: return NAME;
+ SPV_CLASSES
+#undef SPV_CLASS
+ default: return NULL;
+ }
+}
+
+enum spv_item_class
+spv_item_class_from_string (const char *name)
+{
+#define SPV_CLASS(ENUM, NAME) \
+ if (!strcmp (name, NAME)) return SPV_CLASS_##ENUM;
+ SPV_CLASSES
+#undef SPV_CLASS
+
+ return SPV_N_CLASSES;
+}
+
+enum spv_item_type
+spv_item_get_type (const struct spv_item *item)
+{
+ return item->type;
+}
+
+enum spv_item_class
+spv_item_get_class (const struct spv_item *item)
+{
+ const char *label = spv_item_get_label (item);
+ if (!label)
+ label = "";
+
+ switch (item->type)
+ {
+ case SPV_ITEM_HEADING:
+ return SPV_CLASS_OUTLINEHEADERS;
+
+ case SPV_ITEM_TEXT:
+ return (!strcmp (label, "Title") ? SPV_CLASS_HEADINGS
+ : !strcmp (label, "Log") ? SPV_CLASS_LOGS
+ : !strcmp (label, "Page Title") ? SPV_CLASS_PAGETITLE
+ : SPV_CLASS_TEXTS);
+
+ case SPV_ITEM_TABLE:
+ return (!strcmp (label, "Warnings") ? SPV_CLASS_WARNINGS
+ : !strcmp (label, "Notes") ? SPV_CLASS_NOTES
+ : SPV_CLASS_TABLES);
+
+ case SPV_ITEM_GRAPH:
+ return SPV_CLASS_CHARTS;
+
+ case SPV_ITEM_MODEL:
+ return SPV_CLASS_MODELS;
+
+ case SPV_ITEM_OBJECT:
+ return SPV_CLASS_OTHER;
+
+ default:
+ return SPV_CLASS_UNKNOWN;
+ }
+}
+
+const char *
+spv_item_get_label (const struct spv_item *item)
+{
+ return item->label;
+}
+
+bool
+spv_item_is_heading (const struct spv_item *item)
+{
+ return item->type == SPV_ITEM_HEADING;
+}
+
+size_t
+spv_item_get_n_children (const struct spv_item *item)
+{
+ return item->n_children;
+}
+
+struct spv_item *
+spv_item_get_child (const struct spv_item *item, size_t idx)
+{
+ assert (idx < item->n_children);
+ return item->children[idx];
+}
+
+bool
+spv_item_is_table (const struct spv_item *item)
+{
+ return item->type == SPV_ITEM_TABLE;
+}
+
+bool
+spv_item_is_text (const struct spv_item *item)
+{
+ return item->type == SPV_ITEM_TEXT;
+}
+
+const struct pivot_value *
+spv_item_get_text (const struct spv_item *item)
+{
+ assert (spv_item_is_text (item));
+ return item->text;
+}
+
+struct spv_item *
+spv_item_next (const struct spv_item *item)
+{
+ if (item->n_children)
+ return item->children[0];
+
+ while (item->parent)
+ {
+ size_t idx = item->parent_idx + 1;
+ item = item->parent;
+ if (idx < item->n_children)
+ return item->children[idx];
+ }
+
+ return NULL;
+}
+
+const struct spv_item *
+spv_item_get_parent (const struct spv_item *item)
+{
+ return item->parent;
+}
+
+size_t
+spv_item_get_level (const struct spv_item *item)
+{
+ int level = 0;
+ for (; item->parent; item = item->parent)
+ level++;
+ return level;
+}
+
+const char *
+spv_item_get_command_id (const struct spv_item *item)
+{
+ return item->command_id;
+}
+
+const char *
+spv_item_get_subtype (const struct spv_item *item)
+{
+ return item->subtype;
+}
+
+bool
+spv_item_is_visible (const struct spv_item *item)
+{
+ return item->visible;
+}
+
+static void
+spv_item_destroy (struct spv_item *item)
+{
+ if (item)
+ {
+ free (item->structure_member);
+
+ free (item->label);
+ free (item->command_id);
+
+ for (size_t i = 0; i < item->n_children; i++)
+ spv_item_destroy (item->children[i]);
+ free (item->children);
+
+ pivot_table_unref (item->table);
+ spv_legacy_properties_destroy (item->legacy_properties);
+ free (item->bin_member);
+ free (item->xml_member);
+ free (item->subtype);
+
+ pivot_value_destroy (item->text);
+
+ free (item->object_type);
+ free (item->uri);
+
+ free (item);
+ }
+}
+
+static void
+spv_heading_add_child (struct spv_item *parent, struct spv_item *child)
+{
+ assert (parent->type == SPV_ITEM_HEADING);
+ assert (!child->parent);
+
+ child->parent = parent;
+ child->parent_idx = parent->n_children;
+
+ if (parent->n_children >= parent->allocated_children)
+ parent->children = x2nrealloc (parent->children,
+ &parent->allocated_children,
+ sizeof *parent->children);
+ parent->children[parent->n_children++] = child;
+}
+
+static xmlNode *
+find_xml_child_element (xmlNode *parent, const char *child_name)
+{
+ for (xmlNode *node = parent->children; node; node = node->next)
+ if (node->type == XML_ELEMENT_NODE
+ && node->name
+ && !strcmp (CHAR_CAST (char *, node->name), child_name))
+ return node;
+
+ return NULL;
+}
+
+static char *
+get_xml_attr (const xmlNode *node, const char *name)
+{
+ return CHAR_CAST (char *, xmlGetProp (node, CHAR_CAST (xmlChar *, name)));
+}
+
+static void
+put_xml_attr (const char *name, const char *value, struct string *dst)
+{
+ if (!value)
+ return;
+
+ ds_put_format (dst, " %s=\"", name);
+ for (const char *p = value; *p; p++)
+ {
+ switch (*p)
+ {
+ case '\n':
+ ds_put_cstr (dst, "
");
+ break;
+ case '&':
+ ds_put_cstr (dst, "&");
+ break;
+ case '<':
+ ds_put_cstr (dst, "<");
+ break;
+ case '>':
+ ds_put_cstr (dst, ">");
+ break;
+ case '"':
+ ds_put_cstr (dst, """);
+ break;
+ default:
+ ds_put_byte (dst, *p);
+ break;
+ }
+ }
+ ds_put_byte (dst, '"');
+}
+
+static void
+extract_html_text (const xmlNode *node, int base_font_size, struct string *s)
+{
+ if (node->type == XML_ELEMENT_NODE)
+ {
+ const char *name = CHAR_CAST (char *, node->name);
+ if (!strcmp (name, "br"))
+ ds_put_byte (s, '\n');
+ else if (strcmp (name, "style"))
+ {
+ const char *tag = NULL;
+ if (strchr ("biu", name[0]) && name[1] == '\0')
+ {
+ tag = name;
+ ds_put_format (s, "<%s>", tag);
+ }
+ else if (!strcmp (name, "font"))
+ {
+ tag = "span";
+ ds_put_format (s, "<%s", tag);
+
+ char *face = get_xml_attr (node, "face");
+ put_xml_attr ("face", face, s);
+ free (face);
+
+ char *color = get_xml_attr (node, "color");
+ if (color)
+ {
+ if (color[0] == '#')
+ put_xml_attr ("color", color, s);
+ else
+ {
+ uint8_t r, g, b;
+ if (sscanf (color, "rgb (%"SCNu8", %"SCNu8", %"SCNu8" )",
+ &r, &g, &b) == 3)
+ {
+ char color2[8];
+ snprintf (color2, sizeof color2,
+ "#%02"PRIx8"%02"PRIx8"%02"PRIx8,
+ r, g, b);
+ put_xml_attr ("color", color2, s);
+ }
+ }
+ }
+ free (color);
+
+ char *size_s = get_xml_attr (node, "size");
+ int html_size = size_s ? atoi (size_s) : 0;
+ free (size_s);
+ if (html_size >= 1 && html_size <= 7)
+ {
+ static const double scale[7] = {
+ .444, .556, .667, .778, 1.0, 1.33, 2.0
+ };
+ double size = base_font_size * scale[html_size - 1];
+
+ char size2[INT_BUFSIZE_BOUND (int)];
+ snprintf (size2, sizeof size2, "%.0f", size * 1024.);
+ put_xml_attr ("size", size2, s);
+ }
+
+ ds_put_cstr (s, ">");
+ }
+ for (const xmlNode *child = node->children; child;
+ child = child->next)
+ extract_html_text (child, base_font_size, s);
+ if (tag)
+ ds_put_format (s, "", tag);
+ }
+ }
+ else if (node->type == XML_TEXT_NODE)
+ {
+ /* U+00A0 NONBREAKING SPACE is really, really common in SPV text and it
+ makes it impossible to break syntax across lines. Translate it into a
+ regular space. (Note that U+00A0 is C2 A0 in UTF-8.)
+
+ Do the same for U+2007 FIGURE SPACE, which also crops out weirdly
+ sometimes. */
+ ds_extend (s, ds_length (s) + xmlStrlen (node->content));
+ for (const uint8_t *p = node->content; *p; )
+ {
+ int c;
+ if (p[0] == 0xc2 && p[1] == 0xa0)
+ {
+ c = ' ';
+ p += 2;
+ }
+ else if (p[0] == 0xe2 && p[1] == 0x80 && p[2] == 0x87)
+ {
+ c = ' ';
+ p += 3;
+ }
+ else
+ c = *p++;
+
+ if (c_isspace (c))
+ {
+ int last = ds_last (s);
+ if (last != EOF && !c_isspace (last))
+ ds_put_byte (s, c);
+ }
+ else if (c == '<')
+ ds_put_cstr (s, "<");
+ else if (c == '>')
+ ds_put_cstr (s, ">");
+ else if (c == '&')
+ ds_put_cstr (s, "&");
+ else
+ ds_put_byte (s, c);
+ }
+ }
+}
+
+static xmlDoc *
+parse_embedded_html (const xmlNode *node)
+{
+ /* Extract HTML from XML node. */
+ char *html_s = CHAR_CAST (char *, xmlNodeGetContent (node));
+ if (!html_s)
+ xalloc_die ();
+
+ xmlDoc *html_doc = htmlReadMemory (
+ html_s, strlen (html_s),
+ NULL, "UTF-8", (HTML_PARSE_RECOVER | HTML_PARSE_NOERROR
+ | HTML_PARSE_NOWARNING | HTML_PARSE_NOBLANKS
+ | HTML_PARSE_NONET));
+ free (html_s);
+
+ return html_doc;
+}
+
+/* Given NODE, which should contain HTML content, returns the text within that
+ content as an allocated string. The caller must eventually free the
+ returned string (with xmlFree()). */
+static char *
+decode_embedded_html (const xmlNode *node, struct font_style *font_style)
+{
+ struct string markup = DS_EMPTY_INITIALIZER;
+ *font_style = (struct font_style) FONT_STYLE_INITIALIZER;
+ font_style->size = 10;
+
+ xmlDoc *html_doc = parse_embedded_html (node);
+ if (html_doc)
+ {
+ xmlNode *root = xmlDocGetRootElement (html_doc);
+ xmlNode *head = root ? find_xml_child_element (root, "head") : NULL;
+ xmlNode *style = head ? find_xml_child_element (head, "style") : NULL;
+ if (style)
+ {
+ uint8_t *style_s = xmlNodeGetContent (style);
+ spv_parse_css_style (CHAR_CAST (char *, style_s), font_style);
+ xmlFree (style_s);
+ }
+
+ if (root)
+ extract_html_text (root, font_style->size, &markup);
+ xmlFreeDoc (html_doc);
+ }
+
+ font_style->markup = true;
+ return ds_steal_cstr (&markup);
+}
+
+static char *
+xstrdup_if_nonempty (const char *s)
+{
+ return s && s[0] ? xstrdup (s) : NULL;
+}
+
+static void
+decode_container_text (const struct spvsx_container_text *ct,
+ struct spv_item *item)
+{
+ item->type = SPV_ITEM_TEXT;
+ item->command_id = xstrdup_if_nonempty (ct->command_name);
+
+ item->text = xzalloc (sizeof *item->text);
+ item->text->type = PIVOT_VALUE_TEXT;
+ item->text->font_style = xmalloc (sizeof *item->text->font_style);
+ item->text->text.local = decode_embedded_html (ct->html->node_.raw,
+ item->text->font_style);
+}
+
+static void
+decode_page_p (const xmlNode *in, struct page_paragraph *out)
+{
+ char *style = get_xml_attr (in, "style");
+ out->halign = (style && strstr (style, "center") ? TABLE_HALIGN_CENTER
+ : style && strstr (style, "right") ? TABLE_HALIGN_RIGHT
+ : TABLE_HALIGN_LEFT);
+ free (style);
+
+ struct font_style font_style;
+ out->markup = decode_embedded_html (in, &font_style);
+ font_style_uninit (&font_style);
+}
+
+static void
+decode_page_paragraph (const struct spvsx_page_paragraph *page_paragraph,
+ struct page_heading *ph)
+{
+ memset (ph, 0, sizeof *ph);
+
+ const struct spvsx_page_paragraph_text *page_paragraph_text
+ = page_paragraph->page_paragraph_text;
+ if (!page_paragraph_text)
+ return;
+
+ xmlDoc *html_doc = parse_embedded_html (page_paragraph_text->node_.raw);
+ if (!html_doc)
+ return;
+
+ xmlNode *root = xmlDocGetRootElement (html_doc);
+ xmlNode *body = find_xml_child_element (root, "body");
+ if (body)
+ for (const xmlNode *node = body->children; node; node = node->next)
+ if (node->type == XML_ELEMENT_NODE
+ && !strcmp (CHAR_CAST (const char *, node->name), "p"))
+ {
+ ph->paragraphs = xrealloc (ph->paragraphs,
+ (ph->n + 1) * sizeof *ph->paragraphs);
+ decode_page_p (node, &ph->paragraphs[ph->n++]);
+ }
+ xmlFreeDoc (html_doc);
+}
+
+void
+spv_item_load (const struct spv_item *item)
+{
+ if (spv_item_is_table (item))
+ spv_item_get_table (item);
+}
+
+bool
+spv_item_is_light_table (const struct spv_item *item)
+{
+ return item->type == SPV_ITEM_TABLE && !item->xml_member;
+}
+
+char * WARN_UNUSED_RESULT
+spv_item_get_raw_light_table (const struct spv_item *item,
+ void **data, size_t *size)
+{
+ return zip_member_read_all (item->spv->zip, item->bin_member, data, size);
+}
+
+char * WARN_UNUSED_RESULT
+spv_item_get_light_table (const struct spv_item *item,
+ struct spvlb_table **tablep)
+{
+ *tablep = NULL;
+
+ if (!spv_item_is_light_table (item))
+ return xstrdup ("not a light binary table object");
+
+ void *data;
+ size_t size;
+ char *error = spv_item_get_raw_light_table (item, &data, &size);
+ if (error)
+ return error;
+
+ struct spvbin_input input;
+ spvbin_input_init (&input, data, size);
+
+#if 0
+ struct spvlb_header *header;
+ if (!spvlb_parse_header (&input, &header))
+ return xstrdup("bad header");
+ spvlb_print_header ("file", 0, header);
+
+ struct spvlb_titles *titles;
+ if (!spvlb_parse_titles (&input, &titles))
+ return xstrdup("bad titles");
+ spvlb_print_titles ("file", 0, titles);
+
+ struct spvlb_footnotes *footnotes;
+ if (!spvlb_parse_footnotes (&input, &footnotes))
+ return xstrdup("bad footnotes");
+ spvlb_print_footnotes ("file", 0, footnotes);
+
+ struct spvlb_areas *areas;
+ if (!spvlb_parse_areas (&input, &areas))
+ return xstrdup("bad areas");
+ spvlb_print_areas ("file", 0, areas);
+
+ struct spvlb_borders *borders;
+ if (!spvlb_parse_borders (&input, &borders))
+ return xstrdup("bad borders");
+ spvlb_print_borders ("file", 0, borders);
+
+ struct spvlb_print_settings *print_settings;
+ if (!spvlb_parse_print_settings (&input, &print_settings))
+ return xstrdup("bad print_settings");
+ spvlb_print_print_settings ("file", 0, print_settings);
+
+ struct spvlb_table_settings *table_settings;
+ if (!spvlb_parse_table_settings (&input, &table_settings))
+ return xstrdup("bad table_settings");
+ spvlb_print_table_settings ("file", 0, table_settings);
+
+ input.ofs = 0;
+#endif
+ struct spvlb_table *table;
+ error = (!spvlb_parse_table (&input, &table)
+ ? spvbin_input_to_error (&input, item->bin_member)
+ : input.ofs != input.size
+ ? xasprintf ("%s: expected end of file at offset %#zx",
+ item->bin_member, input.ofs)
+ : NULL);
+ free (data);
+ if (!error)
+ *tablep = table;
+ return error;
+}
+
+static char *
+pivot_table_open_light (struct spv_item *item)
+{
+ assert (spv_item_is_light_table (item));
+
+ struct spvlb_table *raw_table;
+ char *error = spv_item_get_light_table (item, &raw_table);
+ if (!error)
+ error = decode_spvlb_table (raw_table, &item->table);
+ spvlb_free_table (raw_table);
+
+ return error;
+}
+
+bool
+spv_item_is_legacy_table (const struct spv_item *item)
+{
+ return item->type == SPV_ITEM_TABLE && item->xml_member;
+}
+
+char * WARN_UNUSED_RESULT
+spv_item_get_raw_legacy_data (const struct spv_item *item,
+ void **data, size_t *size)
+{
+ if (!spv_item_is_legacy_table (item))
+ return xstrdup ("not a legacy table object");
+
+ return zip_member_read_all (item->spv->zip, item->bin_member, data, size);
+}
+
+char * WARN_UNUSED_RESULT
+spv_item_get_legacy_data (const struct spv_item *item, struct spv_data *data)
+{
+ void *raw;
+ size_t size;
+ char *error = spv_item_get_raw_legacy_data (item, &raw, &size);
+ if (!error)
+ {
+ error = spv_legacy_data_decode (raw, size, data);
+ free (raw);
+ }
+
+ return error;
+}
+
+static char * WARN_UNUSED_RESULT
+spv_read_xml_member (struct spv_reader *spv, const char *member_name,
+ bool keep_blanks, const char *root_element_name,
+ xmlDoc **docp)
+{
+ *docp = NULL;
+
+ struct zip_member *zm = zip_member_open (spv->zip, member_name);
+ if (!zm)
+ return ds_steal_cstr (&spv->zip_errs);
+
+ xmlParserCtxt *parser;
+ xmlKeepBlanksDefault (keep_blanks);
+ parser = xmlCreatePushParserCtxt(NULL, NULL, NULL, 0, NULL);
+ if (!parser)
+ {
+ zip_member_finish (zm);
+ return xasprintf (_("%s: Failed to create XML parser"), member_name);
+ }
+
+ int retval;
+ char buf[4096];
+ while ((retval = zip_member_read (zm, buf, sizeof buf)) > 0)
+ xmlParseChunk (parser, buf, retval, false);
+ xmlParseChunk (parser, NULL, 0, true);
+
+ xmlDoc *doc = parser->myDoc;
+ bool well_formed = parser->wellFormed;
+ xmlFreeParserCtxt (parser);
+
+ if (retval < 0)
+ {
+ char *error = ds_steal_cstr (&spv->zip_errs);
+ zip_member_finish (zm);
+ xmlFreeDoc (doc);
+ return error;
+ }
+ zip_member_finish (zm);
+
+ if (!well_formed)
+ {
+ xmlFreeDoc (doc);
+ return xasprintf(_("%s: document is not well-formed"), member_name);
+ }
+
+ const xmlNode *root_node = xmlDocGetRootElement (doc);
+ assert (root_node->type == XML_ELEMENT_NODE);
+ if (strcmp (CHAR_CAST (char *, root_node->name), root_element_name))
+ {
+ xmlFreeDoc (doc);
+ return xasprintf(_("%s: root node is \"%s\" but \"%s\" was expected"),
+ member_name,
+ CHAR_CAST (char *, root_node->name), root_element_name);
+ }
+
+ *docp = doc;
+ return NULL;
+}
+
+char * WARN_UNUSED_RESULT
+spv_item_get_legacy_table (const struct spv_item *item, xmlDoc **docp)
+{
+ assert (spv_item_is_legacy_table (item));
+
+ return spv_read_xml_member (item->spv, item->xml_member, false,
+ "visualization", docp);
+}
+
+char * WARN_UNUSED_RESULT
+spv_item_get_structure (const struct spv_item *item, struct _xmlDoc **docp)
+{
+ return spv_read_xml_member (item->spv, item->structure_member, false,
+ "heading", docp);
+}
+
+static char * WARN_UNUSED_RESULT
+pivot_table_open_legacy (struct spv_item *item)
+{
+ assert (spv_item_is_legacy_table (item));
+
+ struct spv_data data;
+ char *error = spv_item_get_legacy_data (item, &data);
+ if (error)
+ {
+ char *s = xasprintf ("%s: %s", item->bin_member, error);
+ free (error);
+ return s;
+ }
+
+ xmlDoc *doc;
+ error = spv_read_xml_member (item->spv, item->xml_member, false,
+ "visualization", &doc);
+ if (error)
+ {
+ spv_data_uninit (&data);
+ return error;
+ }
+
+ struct spvxml_context ctx = SPVXML_CONTEXT_INIT (ctx);
+ struct spvdx_visualization *v;
+ spvdx_parse_visualization (&ctx, xmlDocGetRootElement (doc), &v);
+ error = spvxml_context_finish (&ctx, &v->node_);
+
+ if (!error)
+ error = decode_spvdx_table (v, item->legacy_properties, &data,
+ &item->table);
+
+ if (error)
+ {
+ char *s = xasprintf ("%s: %s", item->xml_member, error);
+ free (error);
+ error = s;
+ }
+
+ spv_data_uninit (&data);
+ spvdx_free_visualization (v);
+ if (doc)
+ xmlFreeDoc (doc);
+
+ return error;
+}
+
+struct pivot_table *
+spv_item_get_table (const struct spv_item *item_)
+{
+ struct spv_item *item = CONST_CAST (struct spv_item *, item_);
+
+ assert (spv_item_is_table (item));
+ if (!item->table)
+ {
+ char *error = (item->xml_member
+ ? pivot_table_open_legacy (item)
+ : pivot_table_open_light (item));
+ if (error)
+ {
+ item->error = true;
+ msg (ME, "%s", error);
+ item->table = pivot_table_create_for_text (
+ pivot_value_new_text (N_("Error")),
+ pivot_value_new_user_text (error, -1));
+ free (error);
+ }
+ }
+
+ return item->table;
+}
+
+/* Constructs a new spv_item from XML and stores it in *ITEMP. Returns NULL if
+ successful, otherwise an error message for the caller to use and free (with
+ free()).
+
+ XML should be a 'heading' or 'container' element. */
+static char * WARN_UNUSED_RESULT
+spv_decode_container (const struct spvsx_container *c,
+ const char *structure_member,
+ struct spv_item *parent)
+{
+ struct spv_item *item = xzalloc (sizeof *item);
+ item->spv = parent->spv;
+ item->label = xstrdup (c->label->text);
+ item->visible = c->visibility == SPVSX_VISIBILITY_VISIBLE;
+ item->structure_member = xstrdup (structure_member);
+
+ assert (c->n_seq == 1);
+ struct spvxml_node *content = c->seq[0];
+ if (spvsx_is_container_text (content))
+ decode_container_text (spvsx_cast_container_text (content), item);
+ else if (spvsx_is_table (content))
+ {
+ item->type = SPV_ITEM_TABLE;
+
+ struct spvsx_table *table = spvsx_cast_table (content);
+ const struct spvsx_table_structure *ts = table->table_structure;
+ item->bin_member = xstrdup (ts->data_path->text);
+ item->command_id = xstrdup_if_nonempty (table->command_name);
+ if (ts->path)
+ {
+ item->xml_member = ts->path ? xstrdup (ts->path->text) : NULL;
+ char *error = decode_spvsx_legacy_properties (
+ table->table_properties, &item->legacy_properties);
+ if (error)
+ {
+ spv_item_destroy (item);
+ return error;
+ }
+ }
+ }
+ else if (spvsx_is_graph (content))
+ {
+ struct spvsx_graph *graph = spvsx_cast_graph (content);
+ item->type = SPV_ITEM_GRAPH;
+ item->command_id = xstrdup_if_nonempty (graph->command_name);
+ /* XXX */
+ }
+ else if (spvsx_is_model (content))
+ {
+ struct spvsx_model *model = spvsx_cast_model (content);
+ item->type = SPV_ITEM_MODEL;
+ item->command_id = xstrdup_if_nonempty (model->command_name);
+ /* XXX */
+ }
+ else if (spvsx_is_object (content))
+ {
+ struct spvsx_object *object = spvsx_cast_object (content);
+ item->type = SPV_ITEM_OBJECT;
+ item->object_type = xstrdup (object->type);
+ item->uri = xstrdup (object->uri);
+ }
+ else if (spvsx_is_image (content))
+ {
+ struct spvsx_image *image = spvsx_cast_image (content);
+ item->type = SPV_ITEM_OBJECT;
+ item->object_type = xstrdup ("image");
+ item->uri = xstrdup (image->data_path->text);
+ }
+ else
+ NOT_REACHED ();
+
+ spv_heading_add_child (parent, item);
+ return NULL;
+}
+
+static char * WARN_UNUSED_RESULT
+spv_decode_children (struct spv_reader *spv, const char *structure_member,
+ struct spvxml_node **seq, size_t n_seq,
+ struct spv_item *parent)
+{
+ for (size_t i = 0; i < n_seq; i++)
+ {
+ const struct spvxml_node *node = seq[i];
+
+ char *error;
+ if (spvsx_is_container (node))
+ {
+ const struct spvsx_container *container
+ = spvsx_cast_container (node);
+ error = spv_decode_container (container, structure_member, parent);
+ }
+ else if (spvsx_is_heading (node))
+ {
+ const struct spvsx_heading *subheading = spvsx_cast_heading (node);
+ struct spv_item *subitem = xzalloc (sizeof *subitem);
+ subitem->structure_member = xstrdup (structure_member);
+ subitem->spv = parent->spv;
+ subitem->type = SPV_ITEM_HEADING;
+ subitem->label = xstrdup (subheading->label->text);
+ if (subheading->command_name)
+ subitem->command_id = xstrdup (subheading->command_name);
+ subitem->visible = !subheading->heading_visibility_present;
+ spv_heading_add_child (parent, subitem);
+
+ error = spv_decode_children (spv, structure_member,
+ subheading->seq, subheading->n_seq,
+ subitem);
+ }
+ else
+ NOT_REACHED ();
+
+ if (error)
+ return error;
+ }
+
+ return NULL;
+}
+
+static struct page_setup *
+decode_page_setup (const struct spvsx_page_setup *in, const char *file_name)
+{
+ struct page_setup *out = xmalloc (sizeof *out);
+ *out = (struct page_setup) PAGE_SETUP_INITIALIZER;
+
+ out->initial_page_number = in->initial_page_number;
+
+ if (in->paper_width != DBL_MAX)
+ out->paper[TABLE_HORZ] = in->paper_width;
+ if (in->paper_height != DBL_MAX)
+ out->paper[TABLE_VERT] = in->paper_height;
+
+ if (in->margin_left != DBL_MAX)
+ out->margins[TABLE_HORZ][0] = in->margin_left;
+ if (in->margin_right != DBL_MAX)
+ out->margins[TABLE_HORZ][1] = in->margin_right;
+ if (in->margin_top != DBL_MAX)
+ out->margins[TABLE_VERT][0] = in->margin_top;
+ if (in->margin_bottom != DBL_MAX)
+ out->margins[TABLE_VERT][1] = in->margin_bottom;
+
+ if (in->space_after != DBL_MAX)
+ out->object_spacing = in->space_after;
+
+ if (in->chart_size)
+ out->chart_size = (in->chart_size == SPVSX_CHART_SIZE_FULL_HEIGHT
+ ? PAGE_CHART_FULL_HEIGHT
+ : in->chart_size == SPVSX_CHART_SIZE_HALF_HEIGHT
+ ? PAGE_CHART_HALF_HEIGHT
+ : in->chart_size == SPVSX_CHART_SIZE_QUARTER_HEIGHT
+ ? PAGE_CHART_QUARTER_HEIGHT
+ : PAGE_CHART_AS_IS);
+
+ decode_page_paragraph (in->page_header->page_paragraph, &out->headings[0]);
+ decode_page_paragraph (in->page_footer->page_paragraph, &out->headings[1]);
+
+ out->file_name = xstrdup (file_name);
+
+ return out;
+}
+
+static char * WARN_UNUSED_RESULT
+spv_heading_read (struct spv_reader *spv,
+ const char *file_name, const char *member_name)
+{
+ xmlDoc *doc;
+ char *error = spv_read_xml_member (spv, member_name, true, "heading", &doc);
+ if (error)
+ return error;
+
+ struct spvxml_context ctx = SPVXML_CONTEXT_INIT (ctx);
+ struct spvsx_root_heading *root;
+ spvsx_parse_root_heading (&ctx, xmlDocGetRootElement (doc), &root);
+ error = spvxml_context_finish (&ctx, &root->node_);
+
+ if (!error && root->page_setup)
+ spv->page_setup = decode_page_setup (root->page_setup, file_name);
+
+ for (size_t i = 0; !error && i < root->n_seq; i++)
+ error = spv_decode_children (spv, member_name, root->seq, root->n_seq,
+ spv->root);
+
+ if (error)
+ {
+ char *s = xasprintf ("%s: %s", member_name, error);
+ free (error);
+ error = s;
+ }
+
+ spvsx_free_root_heading (root);
+ xmlFreeDoc (doc);
+
+ return error;
+}
+
+struct spv_item *
+spv_get_root (const struct spv_reader *spv)
+{
+ return spv->root;
+}
+
+static int
+spv_detect__ (struct zip_reader *zip, char **errorp)
+{
+ *errorp = NULL;
+
+ const char *member = "META-INF/MANIFEST.MF";
+ if (!zip_reader_contains_member (zip, member))
+ return 0;
+
+ void *data;
+ size_t size;
+ *errorp = zip_member_read_all (zip, "META-INF/MANIFEST.MF",
+ &data, &size);
+ if (*errorp)
+ return -1;
+
+ const char *magic = "allowPivoting=true";
+ bool is_spv = size == strlen (magic) && !memcmp (magic, data, size);
+ free (data);
+
+ return is_spv;
+}
+
+/* Returns NULL if FILENAME is an SPV file, otherwise an error string that the
+ caller must eventually free(). */
+char * WARN_UNUSED_RESULT
+spv_detect (const char *filename)
+{
+ struct string zip_error;
+ struct zip_reader *zip = zip_reader_create (filename, &zip_error);
+ if (!zip)
+ return ds_steal_cstr (&zip_error);
+
+ char *error;
+ if (spv_detect__ (zip, &error) <= 0 && !error)
+ error = xasprintf("%s: not an SPV file", filename);
+ zip_reader_destroy (zip);
+ ds_destroy (&zip_error);
+ return error;
+}
+
+
+char * WARN_UNUSED_RESULT
+spv_open (const char *filename, struct spv_reader **spvp)
+{
+ *spvp = NULL;
+
+ struct spv_reader *spv = xzalloc (sizeof *spv);
+ ds_init_empty (&spv->zip_errs);
+ spv->zip = zip_reader_create (filename, &spv->zip_errs);
+ if (!spv->zip)
+ {
+ char *error = ds_steal_cstr (&spv->zip_errs);
+ spv_close (spv);
+ return error;
+ }
+
+ char *error;
+ int detect = spv_detect__ (spv->zip, &error);
+ if (detect <= 0)
+ {
+ spv_close (spv);
+ return error ? error : xasprintf("%s: not an SPV file", filename);
+ }
+
+ spv->root = xzalloc (sizeof *spv->root);
+ spv->root->spv = spv;
+ spv->root->type = SPV_ITEM_HEADING;
+ for (size_t i = 0; ; i++)
+ {
+ const char *member_name = zip_reader_get_member_name (spv->zip, i);
+ if (!member_name)
+ break;
+
+ struct substring member_name_ss = ss_cstr (member_name);
+ if (ss_starts_with (member_name_ss, ss_cstr ("outputViewer"))
+ && ss_ends_with (member_name_ss, ss_cstr (".xml")))
+ {
+ char *error = spv_heading_read (spv, filename, member_name);
+ if (error)
+ {
+ spv_close (spv);
+ return error;
+ }
+ }
+ }
+
+ *spvp = spv;
+ return NULL;
+}
+
+void
+spv_close (struct spv_reader *spv)
+{
+ if (spv)
+ {
+ ds_destroy (&spv->zip_errs);
+ zip_reader_destroy (spv->zip);
+ spv_item_destroy (spv->root);
+ page_setup_destroy (spv->page_setup);
+ free (spv);
+ }
+}
+
+struct fmt_spec
+spv_decode_fmt_spec (uint32_t u32)
+{
+ if (!u32
+ || (u32 == 0x10000 || u32 == 1 /* both used as string formats */))
+ return fmt_for_output (FMT_F, 40, 2);
+
+ uint8_t raw_type = u32 >> 16;
+ uint8_t w = u32 >> 8;
+ uint8_t d = u32;
+
+ msg_disable ();
+ struct fmt_spec spec = { .type = FMT_F, .w = w, .d = d };
+ bool ok = raw_type >= 40 || fmt_from_io (raw_type, &spec.type);
+ if (ok)
+ {
+ fmt_fix_output (&spec);
+ ok = fmt_check_width_compat (&spec, 0);
+ }
+ msg_enable ();
+
+ if (!ok)
+ {
+ fprintf (stderr, "bad format %#"PRIx32"\n", u32); /* XXX */
+ spec = fmt_for_output (FMT_F, 40, 2);
+ exit (1);
+ }
+
+ return spec;
+}