#include <ctype.h>
#include <errno.h>
+#include <libxml/parser.h>
+#include <libxml/tree.h>
#include <limits.h>
#include <stdlib.h>
#include <string.h>
+#include <time.h>
#include "data/file-handle-def.h"
#include "data/settings.h"
#include "libpspp/string-map.h"
#include "libpspp/string-set.h"
#include "libpspp/str.h"
+#include "output/group-item.h"
#include "output/message-item.h"
#include "output/output-item.h"
#include "output/text-item.h"
+#include "gl/error.h"
#include "gl/xalloc.h"
#include "gl/xmemdup0.h"
struct output_engine
{
struct llx_list drivers; /* Contains "struct output_driver"s. */
- struct string deferred_syntax; /* TEXT_ITEM_SYNTAX being accumulated. */
+ struct string deferred_text; /* Output text being accumulated. */
+ enum text_item_type deferred_type; /* Type of text being accumulated. */
+ char *command_name; /* Name of command being processed. */
+ char *title, *subtitle; /* Components of page title. */
+
+ /* Output grouping stack.
+
+ TEXT_ITEM_GROUP_OPEN pushes a group on the stack and
+ TEXT_ITEM_GROUP_CLOSE pops one off. */
+ char **groups; /* Command names of nested sections. */
+ size_t n_groups;
+ size_t allocated_groups;
+
+ struct string_map heading_vars;
};
static const struct output_driver_factory *factories[];
return &engine_stack[n_stack - 1];
}
+static void
+put_strftime (const char *key, const char *format,
+ const struct tm *tm, struct string_map *vars)
+{
+ if (!string_map_find (vars, key))
+ {
+ char value[128];
+ strftime (value, sizeof value, format, tm);
+ string_map_insert (vars, key, value);
+ }
+}
+
void
output_engine_push (void)
{
sizeof *engine_stack);
e = &engine_stack[n_stack++];
+ memset (e, 0, sizeof *e);
llx_init (&e->drivers);
- ds_init_empty (&e->deferred_syntax);
+ ds_init_empty (&e->deferred_text);
+
+ string_map_init (&e->heading_vars);
+
+ time_t t = time (NULL);
+ const struct tm *tm = localtime (&t);
+ put_strftime ("Date", "%x", tm, &e->heading_vars);
+ put_strftime ("Time", "%X", tm, &e->heading_vars);
}
void
struct output_driver *d = llx_pop_head (&e->drivers, &llx_malloc_mgr);
output_driver_destroy (d);
}
- ds_destroy (&e->deferred_syntax);
+ ds_destroy (&e->deferred_text);
+ free (e->command_name);
+ free (e->title);
+ free (e->subtitle);
+ for (size_t i = 0; i < e->n_groups; i++)
+ free (e->groups[i]);
+ free (e->groups);
+ string_map_destroy (&e->heading_vars);
}
void
}
static void
-flush_deferred_syntax (struct output_engine *e)
+flush_deferred_text (struct output_engine *e)
{
- if (!ds_is_empty (&e->deferred_syntax))
+ if (!ds_is_empty (&e->deferred_text))
{
- char *syntax = ds_steal_cstr (&e->deferred_syntax);
- output_submit__ (e, text_item_super (
- text_item_create_nocopy (TEXT_ITEM_SYNTAX, syntax)));
+ char *text = ds_steal_cstr (&e->deferred_text);
+ output_submit__ (e, text_item_super (text_item_create_nocopy (
+ e->deferred_type, text)));
}
}
static bool
-is_syntax_item (const struct output_item *item)
+defer_text (struct output_engine *e, struct output_item *item)
{
- return (is_text_item (item)
- && text_item_get_type (to_text_item (item)) == TEXT_ITEM_SYNTAX);
+ if (!is_text_item (item))
+ return false;
+
+ struct text_item *text_item = to_text_item (item);
+ if (text_item->markup) /* XXX */
+ return false;
+
+ enum text_item_type type = text_item_get_type (text_item);
+ if (type != TEXT_ITEM_SYNTAX && type != TEXT_ITEM_LOG)
+ return false;
+
+ if (!ds_is_empty (&e->deferred_text) && e->deferred_type != type)
+ flush_deferred_text (e);
+
+ e->deferred_type = type;
+
+ if (!ds_is_empty (&e->deferred_text))
+ ds_put_byte (&e->deferred_text, '\n');
+
+ const char *text = text_item_get_text (text_item);
+ ds_put_cstr (&e->deferred_text, text);
+ output_item_unref (item);
+
+ return true;
}
/* Submits ITEM to the configured output drivers, and transfers ownership to
if (item == NULL)
return;
- if (is_syntax_item (item))
+ if (defer_text (e, item))
+ return;
+ flush_deferred_text (e);
+
+ if (is_group_open_item (item))
{
- ds_put_cstr (&e->deferred_syntax, text_item_get_text (to_text_item (item)));
- output_item_unref (item);
- return;
+ const struct group_open_item *group_open_item
+ = to_group_open_item (item);
+ if (e->n_groups >= e->allocated_groups)
+ e->groups = x2nrealloc (e->groups, &e->allocated_groups,
+ sizeof *e->groups);
+ e->groups[e->n_groups] = (group_open_item->command_name
+ ? xstrdup (group_open_item->command_name)
+ : NULL);
+ e->n_groups++;
+ }
+ else if (is_group_close_item (item))
+ {
+ assert (e->n_groups > 0);
+
+ size_t idx = --e->n_groups;
+ free (e->groups[idx]);
+ if (idx >= 1 && idx <= 4)
+ {
+ char *key = xasprintf ("Head%zu", idx);
+ free (string_map_find_and_delete (&e->heading_vars, key));
+ free (key);
+ }
+ }
+ else if (is_text_item (item))
+ {
+ const struct text_item *text_item = to_text_item (item);
+ enum text_item_type type = text_item_get_type (text_item);
+ const char *text = text_item_get_text (text_item);
+ if (type == TEXT_ITEM_TITLE
+ && e->n_groups >= 1 && e->n_groups <= 4)
+ {
+ char *key = xasprintf ("Head%zu", e->n_groups);
+ string_map_replace (&e->heading_vars, key, text);
+ free (key);
+ }
+ else if (type == TEXT_ITEM_PAGE_TITLE)
+ string_map_replace (&e->heading_vars, "PageTitle", text);
}
- flush_deferred_syntax (e);
output_submit__ (e, item);
}
+const char *
+output_get_command_name (void)
+{
+ if (n_stack)
+ {
+ struct output_engine *e = engine_stack_top ();
+ for (size_t i = e->n_groups; i-- > 0; )
+ if (e->groups[i])
+ return e->groups[i];
+ }
+
+ return NULL;
+}
+
/* Flushes output to screen devices, so that the user can see
output that doesn't fill up an entire page. */
void
struct output_engine *e = engine_stack_top ();
struct llx *llx;
- flush_deferred_syntax (e);
+ flush_deferred_text (e);
for (llx = llx_head (&e->drivers); llx != llx_null (&e->drivers);
llx = llx_next (llx))
{
d->class->flush (d);
}
}
+
+static void
+output_set_title__ (struct output_engine *e, char **dst, const char *src)
+{
+ free (*dst);
+ *dst = src ? xstrdup (src) : NULL;
+
+ char *page_title
+ = (e->title && e->subtitle ? xasprintf ("%s\n%s", e->title, e->subtitle)
+ : e->title ? xstrdup (e->title)
+ : e->subtitle ? xstrdup (e->subtitle)
+ : xzalloc (1));
+ text_item_submit (text_item_create_nocopy (TEXT_ITEM_PAGE_TITLE,
+ page_title));
+}
+
+void
+output_set_title (const char *title)
+{
+ struct output_engine *e = engine_stack_top ();
+
+ output_set_title__ (e, &e->title, title);
+}
+
+void
+output_set_subtitle (const char *subtitle)
+{
+ struct output_engine *e = engine_stack_top ();
+
+ output_set_title__ (e, &e->subtitle, subtitle);
+}
+
+void
+output_set_filename (const char *filename)
+{
+ struct output_engine *e = engine_stack_top ();
+
+ string_map_replace (&e->heading_vars, "Filename", filename);
+}
+
+size_t
+output_get_group_level (void)
+{
+ struct output_engine *e = engine_stack_top ();
+
+ return e->n_groups;
+}
\f
void
output_driver_init (struct output_driver *driver,
return output_driver_get_engine (driver) != NULL;
}
\f
-/* Useful functions for output driver implementation. */
-
-void
-output_driver_track_current_command (const struct output_item *output_item,
- char **command_namep)
-{
- if (is_text_item (output_item))
- {
- const struct text_item *item = to_text_item (output_item);
- const char *text = text_item_get_text (item);
- enum text_item_type type = text_item_get_type (item);
-
- if (type == TEXT_ITEM_COMMAND_OPEN)
- {
- free (*command_namep);
- *command_namep = xstrdup (text);
- }
- else if (type == TEXT_ITEM_COMMAND_CLOSE)
- {
- free (*command_namep);
- *command_namep = NULL;
- }
- }
-}
-\f
extern const struct output_driver_factory txt_driver_factory;
extern const struct output_driver_factory list_driver_factory;
extern const struct output_driver_factory html_driver_factory;
extern const struct output_driver_factory csv_driver_factory;
-#ifdef ODF_WRITE_SUPPORT
extern const struct output_driver_factory odt_driver_factory;
-#endif
+extern const struct output_driver_factory spv_driver_factory;
#ifdef HAVE_CAIRO
extern const struct output_driver_factory pdf_driver_factory;
extern const struct output_driver_factory ps_driver_factory;
&list_driver_factory,
&html_driver_factory,
&csv_driver_factory,
-#ifdef ODF_WRITE_SUPPORT
&odt_driver_factory,
-#endif
+ &spv_driver_factory,
#ifdef HAVE_CAIRO
&pdf_driver_factory,
&ps_driver_factory,
return driver;
}
+
+void
+output_driver_parse_option (const char *option, struct string_map *options)
+{
+ const char *equals = strchr (option, '=');
+ if (equals == NULL)
+ {
+ error (0, 0, _("%s: output option missing `='"), option);
+ return;
+ }
+
+ char *key = xmemdup0 (option, equals - option);
+ if (string_map_contains (options, key))
+ {
+ error (0, 0, _("%s: output option specified more than once"), key);
+ free (key);
+ return;
+ }
+
+ char *value = xmemdup0 (equals + 1, strlen (equals + 1));
+ string_map_insert_nocopy (options, key, value);
+}
+\f
+/* Extracts the actual text content from the given Pango MARKUP and returns it
+ as as a malloc()'d string. */
+char *
+output_get_text_from_markup (const char *markup)
+{
+ xmlParserCtxt *parser = xmlCreatePushParserCtxt (NULL, NULL, NULL, 0, NULL);
+ if (!parser)
+ return xstrdup (markup);
+
+ xmlParseChunk (parser, "<xml>", strlen ("<xml>"), false);
+ xmlParseChunk (parser, markup, strlen (markup), false);
+ xmlParseChunk (parser, "</xml>", strlen ("</xml>"), true);
+
+ char *content
+ = (parser->wellFormed
+ ? CHAR_CAST (char *,
+ xmlNodeGetContent (xmlDocGetRootElement (parser->myDoc)))
+ : xstrdup (markup));
+ xmlFreeDoc (parser->myDoc);
+ xmlFreeParserCtxt (parser);
+
+ return content;
+}
+
+char *
+output_driver_substitute_heading_vars (const char *src, int page_number)
+{
+ struct output_engine *e = engine_stack_top ();
+ struct string dst = DS_EMPTY_INITIALIZER;
+ ds_extend (&dst, strlen (src));
+ for (const char *p = src; *p; )
+ {
+ if (!strncmp (p, "&[", 6))
+ {
+ if (page_number != INT_MIN)
+ {
+ const char *start = p + 6;
+ const char *end = strchr (start, ']');
+ if (end)
+ {
+ const char *value = string_map_find__ (&e->heading_vars,
+ start, end - start);
+ if (value)
+ ds_put_cstr (&dst, value);
+ else if (ss_equals (ss_buffer (start, end - start),
+ ss_cstr ("Page")))
+ ds_put_format (&dst, "%d", page_number);
+ p = end + 1;
+ continue;
+ }
+ }
+ ds_put_cstr (&dst, "&");
+ p += 5;
+ }
+ else
+ ds_put_byte (&dst, *p++);
+ }
+ return ds_steal_cstr (&dst);
+}
projects / pspp / blobdiff