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-rw-r--r--mail/e-searching-tokenizer.c1037
1 files changed, 0 insertions, 1037 deletions
diff --git a/mail/e-searching-tokenizer.c b/mail/e-searching-tokenizer.c
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index 602dd3858d..0000000000
--- a/mail/e-searching-tokenizer.c
+++ /dev/null
@@ -1,1037 +0,0 @@
-/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
-
-/*
- * e-searching-tokenizer.c
- *
- * Copyright (C) 2001 Ximian, Inc.
- *
- * Developed by Jon Trowbridge <trow@ximian.com>
- */
-
-/*
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of version 2 of the GNU General Public
- * License as published by the Free Software Foundation.
- *
- * 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, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
- * USA.
- */
-
-#include <config.h>
-#include <string.h>
-#include <ctype.h>
-#include <gal/unicode/gunicode.h>
-#include "e-searching-tokenizer.h"
-
-enum {
- EST_MATCH_SIGNAL,
- EST_LAST_SIGNAL
-};
-guint e_searching_tokenizer_signals[EST_LAST_SIGNAL] = { 0 };
-
-#define START_MAGIC "<\n>S<\n>"
-#define END_MAGIC "<\n>E<\n>"
-
-static void e_searching_tokenizer_begin (HTMLTokenizer *, gchar *);
-static void e_searching_tokenizer_end (HTMLTokenizer *);
-static gchar *e_searching_tokenizer_peek_token (HTMLTokenizer *);
-static gchar *e_searching_tokenizer_next_token (HTMLTokenizer *);
-static gboolean e_searching_tokenizer_has_more (HTMLTokenizer *);
-
-static HTMLTokenizer *e_searching_tokenizer_clone (HTMLTokenizer *);
-
-static const gchar *ignored_tags[] = { "b", "i", NULL };
-static const gchar *space_tags[] = { "br", NULL };
-
-GtkObjectClass *parent_class = NULL;
-
-/** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** **/
-
-typedef enum {
- MATCH_FAILED = 0,
- MATCH_COMPLETE,
- MATCH_START,
- MATCH_CONTINUES,
- MATCH_END
-} MatchInfo;
-
-typedef struct _SearchInfo SearchInfo;
-struct _SearchInfo {
- gchar *search;
- gchar *current;
-
- gboolean case_sensitive;
- gboolean allow_space_tags_to_match_whitespace;
-
- gint match_size_incr;
- gchar *match_color;
- gboolean match_bold;
-};
-
-typedef struct _SharedState SharedState;
-struct _SharedState {
- gint refs;
- gchar *str_primary;
- gchar *str_secondary;
- gboolean case_sensitive_primary;
- gboolean case_sensitive_secondary;
-};
-
-struct _ESearchingTokenizerPrivate {
- gint match_count;
- SearchInfo *search;
- GList *pending;
- GList *trash;
- SharedState *shared;
-};
-
-/** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** **/
-
-static SharedState *
-shared_state_new (void)
-{
- SharedState *shared = g_new0 (SharedState, 1);
- shared->refs = 1;
- return shared;
-}
-
-static void
-shared_state_ref (SharedState *shared)
-{
- g_return_if_fail (shared != NULL);
- g_return_if_fail (shared->refs > 0);
- ++shared->refs;
-}
-
-static void
-shared_state_unref (SharedState *shared)
-{
- if (shared) {
- g_return_if_fail (shared->refs > 0);
- --shared->refs;
- if (shared->refs == 0) {
- g_free (shared->str_primary);
- g_free (shared->str_secondary);
- g_free (shared);
- }
- }
-}
-
-/** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** **/
-
-static SearchInfo *
-search_info_new (void)
-{
- SearchInfo *si;
-
- si = g_new0 (SearchInfo, 1);
- si->case_sensitive = FALSE;
-
- si->match_size_incr = 1;
- si->match_color = g_strdup ("red");
- si->match_bold = FALSE;
-
- si->allow_space_tags_to_match_whitespace = TRUE;
-
- return si;
-}
-
-static void
-search_info_free (SearchInfo *si)
-{
- if (si) {
- g_free (si->search);
- g_free (si->match_color);
- g_free (si);
- }
-}
-
-static SearchInfo *
-search_info_clone (SearchInfo *si)
-{
- SearchInfo *new_si = NULL;
-
- if (si) {
- new_si = search_info_new ();
- new_si->search = g_strdup (si->search);
- new_si->case_sensitive = si->case_sensitive;
- }
-
- return new_si;
-}
-
-static void
-search_info_set_string (SearchInfo *si, const gchar *str)
-{
- g_return_if_fail (si);
- g_return_if_fail (str);
-
- g_free (si->search);
- si->search = g_strdup (str);
- si->current = NULL;
-}
-
-static void
-search_info_set_case_sensitivity (SearchInfo *si, gboolean flag)
-{
- g_return_if_fail (si);
-
- si->case_sensitive = flag;
-}
-
-#if 0
-static void
-search_info_set_match_size_increase (SearchInfo *si, gint incr)
-{
- g_return_if_fail (si);
- g_return_if_fail (incr >= 0);
-
- si->match_size_incr = incr;
-}
-#endif
-
-static void
-search_info_set_match_color (SearchInfo *si, const gchar *color)
-{
- g_return_if_fail (si);
-
- g_free (si->match_color);
- si->match_color = g_strdup (color);
-}
-
-static void
-search_info_set_match_bold (SearchInfo *si, gboolean flag)
-{
- g_return_if_fail (si);
-
- si->match_bold = flag;
-}
-
-static void
-search_info_reset (SearchInfo *si)
-{
- if (si == NULL)
- return;
- si->current = NULL;
-}
-
-/* ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** */
-
-static const gchar *
-find_whole (SearchInfo *si, const gchar *haystack, const gchar *needle)
-{
- const gchar *h, *n;
-
- g_return_val_if_fail (si, NULL);
- g_return_val_if_fail (haystack && needle, NULL);
- g_return_val_if_fail (g_utf8_validate (haystack, -1, NULL), NULL);
- g_return_val_if_fail (g_utf8_validate (needle, -1, NULL), NULL);
-
- while (*haystack) {
- h = haystack;
- n = needle;
- while (*h && *n) {
- gunichar c1 = g_utf8_get_char (h);
- gunichar c2 = g_utf8_get_char (n);
-
- if (!si->case_sensitive) {
- c1 = g_unichar_tolower (c1);
- c2 = g_unichar_tolower (c2);
- }
-
- if (c1 != c2)
- break;
-
- h = g_utf8_next_char (h);
- n = g_utf8_next_char (n);
- }
- if (*n == '\0')
- return haystack;
- if (*h == '\0')
- return NULL;
- haystack = g_utf8_next_char (haystack);
- }
-
- return NULL;
-}
-
-/* This is a really stupid implementation of this function. */
-static const gchar *
-find_head (SearchInfo *si, const gchar *haystack, const gchar *needle)
-{
- const gchar *h, *n;
-
- g_return_val_if_fail (si, NULL);
- g_return_val_if_fail (haystack && needle, NULL);
- g_return_val_if_fail (g_utf8_validate (haystack, -1, NULL), NULL);
- g_return_val_if_fail (g_utf8_validate (needle, -1, NULL), NULL);
-
- while (*haystack) {
- h = haystack;
- n = needle;
- while (*h && *n) {
- gunichar c1 = g_utf8_get_char (h);
- gunichar c2 = g_utf8_get_char (n);
-
- if (!si->case_sensitive) {
- c1 = g_unichar_tolower (c1);
- c2 = g_unichar_tolower (c2);
- }
-
- if (c1 != c2)
- break;
-
- h = g_utf8_next_char (h);
- n = g_utf8_next_char (n);
- }
- if (*h == '\0')
- return haystack;
- haystack = g_utf8_next_char (haystack);
- }
-
- return NULL;
-}
-
-static const gchar *
-find_partial (SearchInfo *si, const gchar *haystack, const gchar *needle)
-{
- g_return_val_if_fail (si, NULL);
- g_return_val_if_fail (haystack && needle, NULL);
- g_return_val_if_fail (g_utf8_validate (haystack, -1, NULL), NULL);
- g_return_val_if_fail (g_utf8_validate (needle, -1, NULL), NULL);
-
- while (*needle) {
- gunichar c1 = g_utf8_get_char (haystack);
- gunichar c2 = g_utf8_get_char (needle);
-
- if (!si->case_sensitive) {
- c1 = g_unichar_tolower (c1);
- c2 = g_unichar_tolower (c2);
- }
-
- if (c1 != c2)
- return NULL;
-
- needle = g_utf8_next_char (needle);
- haystack = g_utf8_next_char (haystack);
- }
- return haystack;
-}
-
-static gboolean
-tag_match (const gchar *token, const gchar *tag)
-{
- token += 2; /* Skip past TAG_ESCAPE and < */
- if (*token == '/')
- ++token;
- while (*token && *tag) {
- gunichar c1 = g_unichar_tolower (g_utf8_get_char (token));
- gunichar c2 = g_unichar_tolower (g_utf8_get_char (tag));
- if (c1 != c2)
- return FALSE;
- token = g_utf8_next_char (token);
- tag = g_utf8_next_char (tag);
- }
- return (*tag == '\0' && *token == '>');
-}
-
-static MatchInfo
-search_info_compare (SearchInfo *si, const gchar *token, gint *start_pos, gint *end_pos)
-{
- gboolean token_is_tag;
- const gchar *s;
- gint i;
-
- g_return_val_if_fail (si != NULL, MATCH_FAILED);
- g_return_val_if_fail (token != NULL, MATCH_FAILED);
- g_return_val_if_fail (start_pos != NULL, MATCH_FAILED);
- g_return_val_if_fail (end_pos != NULL, MATCH_FAILED);
-
- token_is_tag = (*token == TAG_ESCAPE);
-
- /* Try to start a new match. */
- if (si->current == NULL) {
-
- /* A match can never start on a token. */
- if (token_is_tag)
- return MATCH_FAILED;
-
- /* Check to see if the search string is entirely embedded within the token. */
- s = find_whole (si, token, si->search);
- if (s) {
- const gchar *pos = s;
- i = g_utf8_strlen (si->search, -1);
- while (i > 0) {
- pos = g_utf8_next_char (pos);
- --i;
- }
- *start_pos = s - token;
- *end_pos = pos - token;
-
- return MATCH_COMPLETE;
- }
-
- /* Check to see if the beginning of the search string lies in this token. */
- s = find_head (si, token, si->search);
- if (s) {
- *start_pos = s - token;
- si->current = si->search;
- while (*s) {
- s = g_utf8_next_char (s);
- si->current = g_utf8_next_char (si->current);
- }
-
- return MATCH_START;
- }
-
- return MATCH_FAILED;
- }
-
- /* Try to continue a previously-started match. */
-
- /* Deal with tags that we encounter mid-match. */
- if (token_is_tag) {
-
- /* "Ignored tags" will never mess up a match. */
- for (i=0; ignored_tags[i]; ++i) {
- if (tag_match (token, ignored_tags[i]))
- return MATCH_CONTINUES;
- }
-
- /* "Space tags" only match whitespace in our ongoing match. */
- if (si->allow_space_tags_to_match_whitespace
- && g_unichar_isspace (g_utf8_get_char (si->current))) {
- for (i=0; space_tags[i]; ++i) {
- if (tag_match (token, space_tags[i])) {
- si->current = g_utf8_next_char (si->current);
- return MATCH_CONTINUES;
- }
- }
- }
-
- /* All other tags derail our match. */
- return MATCH_FAILED;
- }
-
- s = find_partial (si, token, si->current);
- if (s) {
- if (start_pos)
- *start_pos = 0;
- if (end_pos)
- *end_pos = s - token;
- return MATCH_END;
- }
-
- s = find_partial (si, si->current, token);
- if (s) {
- si->current = (gchar *) s;
- return MATCH_CONTINUES;
- }
-
- return MATCH_FAILED;
-}
-
-/** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** **/
-
-static void
-e_searching_tokenizer_cleanup (ESearchingTokenizer *st)
-{
- g_return_if_fail (st && E_IS_SEARCHING_TOKENIZER (st));
-
- if (st->priv->trash) {
- g_list_foreach (st->priv->trash, (GFunc) g_free, NULL);
- g_list_free (st->priv->trash);
- st->priv->trash = NULL;
- }
-
- if (st->priv->pending) {
- g_list_foreach (st->priv->pending, (GFunc) g_free, NULL);
- g_list_free (st->priv->pending);
- st->priv->pending = NULL;
- }
-}
-
-static void
-e_searching_tokenizer_destroy (GtkObject *obj)
-{
- ESearchingTokenizer *st = E_SEARCHING_TOKENIZER (obj);
-
- e_searching_tokenizer_cleanup (st);
-
- search_info_free (st->priv->search);
- shared_state_unref (st->priv->shared);
-
- g_free (st->priv);
- st->priv = NULL;
-
- if (parent_class->destroy)
- parent_class->destroy (obj);
-}
-
-static void
-e_searching_tokenizer_class_init (ESearchingTokenizerClass *klass)
-{
- GtkObjectClass *obj_class = (GtkObjectClass *) klass;
- HTMLTokenizerClass *tok_class = HTML_TOKENIZER_CLASS (klass);
-
- e_searching_tokenizer_signals[EST_MATCH_SIGNAL] =
- gtk_signal_new ("match",
- GTK_RUN_LAST,
- obj_class->type,
- GTK_SIGNAL_OFFSET (ESearchingTokenizerClass, match),
- gtk_marshal_NONE__NONE,
- GTK_TYPE_NONE,
- 0);
- gtk_object_class_add_signals (obj_class, e_searching_tokenizer_signals, EST_LAST_SIGNAL);
-
- obj_class->destroy = e_searching_tokenizer_destroy;
-
- tok_class->begin = e_searching_tokenizer_begin;
- tok_class->end = e_searching_tokenizer_end;
-
- tok_class->peek_token = e_searching_tokenizer_peek_token;
- tok_class->next_token = e_searching_tokenizer_next_token;
- tok_class->has_more = e_searching_tokenizer_has_more;
- tok_class->clone = e_searching_tokenizer_clone;
-
- parent_class = gtk_type_class (HTML_TYPE_TOKENIZER);
-}
-
-static void
-e_searching_tokenizer_init (ESearchingTokenizer *st)
-{
- st->priv = g_new0 (struct _ESearchingTokenizerPrivate, 1);
- st->priv->shared = shared_state_new ();
-}
-
-GtkType
-e_searching_tokenizer_get_type (void)
-{
- static GtkType e_searching_tokenizer_type = 0;
- if (! e_searching_tokenizer_type) {
- static GtkTypeInfo e_searching_tokenizer_info = {
- "ESearchingTokenizer",
- sizeof (ESearchingTokenizer),
- sizeof (ESearchingTokenizerClass),
- (GtkClassInitFunc) e_searching_tokenizer_class_init,
- (GtkObjectInitFunc) e_searching_tokenizer_init,
- NULL, NULL,
- (GtkClassInitFunc) NULL
- };
- e_searching_tokenizer_type = gtk_type_unique (HTML_TYPE_TOKENIZER,
- &e_searching_tokenizer_info);
- }
- return e_searching_tokenizer_type;
-}
-
-HTMLTokenizer *
-e_searching_tokenizer_new (void)
-{
- return (HTMLTokenizer *) gtk_type_new (E_TYPE_SEARCHING_TOKENIZER);
-}
-
-/** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** **/
-
-static GList *
-g_list_remove_head (GList *x)
-{
- GList *repl = NULL;
- if (x) {
- repl = g_list_remove_link (x, x);
- g_list_free_1 (x);
- }
- return repl;
-}
-
-/* I can't believe that there isn't a better way to do this. */
-static GList *
-g_list_insert_before (GList *list, GList *llink, gpointer data)
-{
- gint pos = g_list_position (list, llink);
- return g_list_insert (list, data, pos);
-}
-
-static gchar *
-pop_pending (ESearchingTokenizer *st)
-{
- gchar *token = NULL;
- if (st->priv->pending) {
- token = (gchar *) st->priv->pending->data;
- st->priv->trash = g_list_prepend (st->priv->trash, token);
- st->priv->pending = g_list_remove_head (st->priv->pending);
- }
- return token;
-}
-
-static inline void
-add_pending (ESearchingTokenizer *st, gchar *tok)
-{
- st->priv->pending = g_list_append (st->priv->pending, tok);
-}
-
-static void
-add_pending_match_begin (ESearchingTokenizer *st, SearchInfo *si)
-{
- gchar *size_str = NULL;
- gchar *color_str= NULL;
-
- if (si->match_size_incr > 0)
- size_str = g_strdup_printf (" size=+%d", si->match_size_incr);
- if (si->match_color)
- color_str = g_strdup_printf (" color=%s", si->match_color);
-
- if (size_str || color_str)
- add_pending (st, g_strdup_printf ("%c<font%s%s>",
- TAG_ESCAPE,
- size_str ? size_str : "",
- color_str ? color_str : ""));
-
- g_free (size_str);
- g_free (color_str);
-
- if (si->match_bold)
- add_pending (st, g_strdup_printf ("%c<b>", TAG_ESCAPE));
-}
-
-static void
-add_pending_match_end (ESearchingTokenizer *st, SearchInfo *si)
-{
- if (si->match_bold)
- add_pending (st, g_strdup_printf ("%c</b>", TAG_ESCAPE));
-
- if (si->match_size_incr > 0 || si->match_color)
- add_pending (st, g_strdup_printf ("%c</font>", TAG_ESCAPE));
-}
-
-static void
-add_to_trash (ESearchingTokenizer *st, gchar *txt)
-{
- st->priv->trash = g_list_prepend (st->priv->trash, txt);
-}
-
-static gchar *
-get_next_token (ESearchingTokenizer *st)
-{
- HTMLTokenizer *ht = HTML_TOKENIZER (st);
- HTMLTokenizerClass *klass = HTML_TOKENIZER_CLASS (parent_class);
-
- return klass->has_more (ht) ? klass->next_token (ht) : NULL;
-}
-
-/*
- * Move the matched part of the queue into pending, replacing the start and end placeholders by
- * the appropriate tokens.
- */
-static GList *
-queue_matched (ESearchingTokenizer *st, SearchInfo *si, GList *q)
-{
- GList *qh = q;
- gboolean post_start = FALSE;
-
- while (q != NULL) {
- GList *q_next = g_list_next (q);
- if (!strcmp ((gchar *) q->data, START_MAGIC)) {
- add_pending_match_begin (st, si);
- post_start = TRUE;
- } else if (!strcmp ((gchar *) q->data, END_MAGIC)) {
- add_pending_match_end (st, si);
- q_next = NULL;
- } else {
- gboolean is_tag = *((gchar *)q->data) == TAG_ESCAPE;
- if (is_tag && post_start)
- add_pending_match_end (st, si);
- add_pending (st, g_strdup ((gchar *) q->data));
- if (is_tag && post_start)
- add_pending_match_begin (st, si);
- }
- qh = g_list_remove_link (qh, q);
- g_list_free_1 (q);
- q = q_next;
- }
-
- return qh;
-}
-
-/*
- * Strip the start and end placeholders out of the queue.
- */
-static GList *
-queue_match_failed (ESearchingTokenizer *st, GList *q)
-{
- GList *qh = q;
-
- /* If we do find the START_MAGIC token in the queue, we want
- to drop everything up to and including the token immediately
- following START_MAGIC. */
- while (q != NULL && strcmp ((gchar *) q->data, START_MAGIC))
- q = g_list_next (q);
- if (q) {
- q = g_list_next (q);
- /* If there is no token following START_MAGIC, something is
- very wrong. */
- if (q == NULL) {
- g_assert_not_reached ();
- }
- }
-
- /* Otherwise we just want to just drop the the first token. */
- if (q == NULL)
- q = qh;
-
- /* Now move everything up to and including q to pending. */
- while (qh && qh != q) {
- if (strcmp ((gchar *) qh->data, START_MAGIC))
- add_pending (st, g_strdup (qh->data));
- qh = g_list_remove_head (qh);
- }
- if (qh == q) {
- if (strcmp ((gchar *) qh->data, START_MAGIC))
- add_pending (st, g_strdup (qh->data));
- qh = g_list_remove_head (qh);
- }
-
- return qh;
-}
-
-static void
-matched (ESearchingTokenizer *st)
-{
- ++st->priv->match_count;
- gtk_signal_emit (GTK_OBJECT (st), e_searching_tokenizer_signals[EST_MATCH_SIGNAL]);
-}
-
-static void
-get_pending_tokens (ESearchingTokenizer *st)
-{
- GList *queue = NULL;
- gchar *token = NULL;
- MatchInfo result;
- gint start_pos, end_pos;
- GList *start_after = NULL;
-
- /* Get an initial token into the queue. */
- token = get_next_token (st);
- if (token) {
- queue = g_list_append (queue, token);
- }
-
- while (queue) {
- GList *q;
- gboolean finished = FALSE;
- search_info_reset (st->priv->search);
-
- if (start_after) {
- q = g_list_next (start_after);
- start_after = NULL;
- } else {
- q = queue;
- }
-
- while (q) {
- GList *q_next = g_list_next (q);
- token = (gchar *) q->data;
-
- result = search_info_compare (st->priv->search, token, &start_pos, &end_pos);
-
- switch (result) {
-
- case MATCH_FAILED:
-
- queue = queue_match_failed (st, queue);
-
- finished = TRUE;
- break;
-
- case MATCH_COMPLETE:
-
- if (start_pos != 0)
- add_pending (st, g_strndup (token, start_pos));
- add_pending_match_begin (st, st->priv->search);
- add_pending (st, g_strndup (token+start_pos, end_pos-start_pos));
- add_pending_match_end (st, st->priv->search);
- if (*(token+end_pos)) {
- queue->data = g_strdup (token+end_pos);
- add_to_trash (st, (gchar *) queue->data);
- } else {
- queue = g_list_remove_head (queue);
- }
-
- matched (st);
-
- finished = TRUE;
- break;
-
- case MATCH_START: {
-
- gchar *s1 = g_strndup (token, start_pos);
- gchar *s2 = g_strdup (START_MAGIC);
- gchar *s3 = g_strdup (token+start_pos);
-
- queue = g_list_insert_before (queue, q, s1);
- queue = g_list_insert_before (queue, q, s2);
- queue = g_list_insert_before (queue, q, s3);
-
- add_to_trash (st, s1);
- add_to_trash (st, s2);
- add_to_trash (st, s3);
-
- queue = g_list_remove_link (queue, q);
-
- finished = FALSE;
- break;
- }
-
- case MATCH_CONTINUES:
- /* Do nothing... */
- finished = FALSE;
- break;
-
- case MATCH_END: {
- gchar *s1 = g_strndup (token, end_pos);
- gchar *s2 = g_strdup (END_MAGIC);
- gchar *s3 = g_strdup (token+end_pos);
-
- queue = g_list_insert_before (queue, q, s1);
- queue = g_list_insert_before (queue, q, s2);
- queue = g_list_insert_before (queue, q, s3);
-
- add_to_trash (st, s1);
- add_to_trash (st, s2);
- add_to_trash (st, s3);
-
- queue = g_list_remove_link (queue, q);
- queue = queue_matched (st, st->priv->search, queue);
-
- matched (st);
-
- finished = TRUE;
- break;
- }
-
- default:
- g_assert_not_reached ();
- }
-
- /* If we reach the end of the queue but we aren't finished, try to pull in another
- token and stick it onto the end. */
- if (q_next == NULL && !finished) {
- gchar *next_token = get_next_token (st);
- if (next_token) {
- queue = g_list_append (queue, next_token);
- q_next = g_list_last (queue);
- }
- }
- q = finished ? NULL : q_next;
-
- } /* while (q) */
-
- if (!finished && queue) { /* ...we add the token at the head of the queue to pending and try again. */
- add_pending (st, g_strdup ((gchar *) queue->data));
- queue = g_list_remove_head (queue);
- }
-
- } /* while (queue) */
-}
-
-/** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** **/
-
-static void
-e_searching_tokenizer_begin (HTMLTokenizer *t, gchar *content_type)
-{
- ESearchingTokenizer *st = E_SEARCHING_TOKENIZER (t);
- SearchInfo *si;
-
- /* Reset our search */
- search_info_free (st->priv->search);
- st->priv->search = NULL;
-
- if (st->priv->shared && (st->priv->shared->str_primary || st->priv->shared->str_secondary)) {
- st->priv->search = search_info_new ();
- }
- si = st->priv->search;
-
- if (st->priv->shared && si) {
- if (st->priv->shared->str_primary) {
-
- search_info_set_string (si, st->priv->shared->str_primary);
- search_info_set_case_sensitivity (si, st->priv->shared->case_sensitive_primary);
-
- search_info_set_match_color (si, "red");
- search_info_set_match_bold (si, TRUE);
-
- } else if (st->priv->shared->str_secondary) {
-
- search_info_set_string (si, st->priv->shared->str_secondary);
- search_info_set_case_sensitivity (si, st->priv->shared->case_sensitive_secondary);
-
- search_info_set_match_color (si, "purple");
- search_info_set_match_bold (si, TRUE);
- }
-
- } else {
-
- search_info_free (st->priv->search);
- st->priv->search = NULL;
-
- }
-
- e_searching_tokenizer_cleanup (st);
- search_info_reset (st->priv->search);
-
- st->priv->match_count = 0;
-
- HTML_TOKENIZER_CLASS (parent_class)->begin (t, content_type);
-}
-
-static void
-e_searching_tokenizer_end (HTMLTokenizer *t)
-{
- ESearchingTokenizer *st = E_SEARCHING_TOKENIZER (t);
- e_searching_tokenizer_cleanup (st);
-
- HTML_TOKENIZER_CLASS (parent_class)->end (t);
-}
-
-static gchar *
-e_searching_tokenizer_peek_token (HTMLTokenizer *tok)
-{
- ESearchingTokenizer *st = E_SEARCHING_TOKENIZER (tok);
-
- /* If no search is active, just use the default method. */
- if (st->priv->search == NULL)
- return HTML_TOKENIZER_CLASS (parent_class)->peek_token (tok);
-
- if (st->priv->pending == NULL)
- get_pending_tokens (st);
- return st->priv->pending ? (gchar *) st->priv->pending->data : NULL;
-}
-
-static gchar *
-e_searching_tokenizer_next_token (HTMLTokenizer *tok)
-{
- ESearchingTokenizer *st = E_SEARCHING_TOKENIZER (tok);
-
- /* If no search is active, just use the default method. */
- if (st->priv->search == NULL)
- return HTML_TOKENIZER_CLASS (parent_class)->next_token (tok);
-
- if (st->priv->pending == NULL)
- get_pending_tokens (st);
- return pop_pending (st);
-}
-
-static gboolean
-e_searching_tokenizer_has_more (HTMLTokenizer *tok)
-{
- ESearchingTokenizer *st = E_SEARCHING_TOKENIZER (tok);
-
- /* If no search is active, pending will always be NULL and thus
- we'll always fall back to using the default method. */
-
- return st->priv->pending || HTML_TOKENIZER_CLASS (parent_class)->has_more (tok);
-}
-
-static HTMLTokenizer *
-e_searching_tokenizer_clone (HTMLTokenizer *tok)
-{
- ESearchingTokenizer *orig_st = E_SEARCHING_TOKENIZER (tok);
- ESearchingTokenizer *new_st = E_SEARCHING_TOKENIZER (e_searching_tokenizer_new ());
-
- if (new_st->priv->search) {
- search_info_free (new_st->priv->search);
- }
-
- new_st->priv->search = search_info_clone (orig_st->priv->search);
-
- shared_state_ref (orig_st->priv->shared);
- shared_state_unref (new_st->priv->shared);
- new_st->priv->shared = orig_st->priv->shared;
-
- gtk_signal_connect_object (GTK_OBJECT (new_st),
- "match",
- GTK_SIGNAL_FUNC (matched),
- GTK_OBJECT (orig_st));
-
- return HTML_TOKENIZER (new_st);
-}
-/* ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** */
-
-static gboolean
-only_whitespace (const gchar *p)
-{
- gunichar c;
- g_return_val_if_fail (p, FALSE);
-
- while (*p && g_unichar_validate (c = g_utf8_get_char (p))) {
- if (!g_unichar_isspace (c))
- return FALSE;
- p = g_utf8_next_char (p);
- }
- return TRUE;
-}
-
-void
-e_searching_tokenizer_set_primary_search_string (ESearchingTokenizer *st, const gchar *search_str)
-{
- g_return_if_fail (st && E_IS_SEARCHING_TOKENIZER (st));
-
- g_free (st->priv->shared->str_primary);
- st->priv->shared->str_primary = NULL;
-
- if (search_str != NULL
- && g_utf8_validate (search_str, -1, NULL)
- && !only_whitespace (search_str)) {
-
- st->priv->shared->str_primary = g_strdup (search_str);
- }
-}
-
-void
-e_searching_tokenizer_set_primary_case_sensitivity (ESearchingTokenizer *st, gboolean is_case_sensitive)
-{
- g_return_if_fail (st && E_IS_SEARCHING_TOKENIZER (st));
-
- st->priv->shared->case_sensitive_primary = is_case_sensitive;
-}
-
-void
-e_searching_tokenizer_set_secondary_search_string (ESearchingTokenizer *st, const gchar *search_str)
-{
- g_return_if_fail (st && E_IS_SEARCHING_TOKENIZER (st));
-
- g_free (st->priv->shared->str_secondary);
- st->priv->shared->str_secondary = NULL;
-
- if (search_str != NULL
- && g_utf8_validate (search_str, -1, NULL)
- && !only_whitespace (search_str)) {
-
- st->priv->shared->str_secondary = g_strdup (search_str);
- }
-}
-
-void
-e_searching_tokenizer_set_secondary_case_sensitivity (ESearchingTokenizer *st, gboolean is_case_sensitive)
-{
- g_return_if_fail (st && E_IS_SEARCHING_TOKENIZER (st));
-
- st->priv->shared->case_sensitive_secondary = is_case_sensitive;
-}
-
-gint
-e_searching_tokenizer_match_count (ESearchingTokenizer *st)
-{
- g_return_val_if_fail (st && E_IS_SEARCHING_TOKENIZER (st), -1);
-
- return st->priv->match_count;
-}
-
-
-