diff options
Diffstat (limited to 'mail/e-searching-tokenizer.c')
| -rw-r--r-- | mail/e-searching-tokenizer.c | 986 |
1 files changed, 0 insertions, 986 deletions
diff --git a/mail/e-searching-tokenizer.c b/mail/e-searching-tokenizer.c deleted file mode 100644 index 47266fc836..0000000000 --- a/mail/e-searching-tokenizer.c +++ /dev/null @@ -1,986 +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 the GNU General Public License as - * published by the Free Software Foundation; either version 2 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, 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; -}; - -struct _ESearchingTokenizerPrivate { - gint match_count; - SearchInfo *search; - GList *pending; - GList *trash; - - gchar *str_primary; - gchar *str_secondary; - gboolean case_sensitive_primary; - gboolean case_sensitive_secondary; -}; - -/** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** **/ - -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; -} - -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; -} - -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) { - *start_pos = s - token; - *end_pos = *start_pos + g_utf8_strlen (si->search, -1); - - 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); - - g_free (st->priv->str_primary); - g_free (st->priv->str_secondary); - - 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); -} - -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; - - if (st->priv->search == NULL && (st->priv->str_primary || st->priv->str_secondary)) { - st->priv->search = search_info_new (); - } - si = st->priv->search; - - - if (st->priv->str_primary) { - - search_info_set_string (si, st->priv->str_primary); - search_info_set_case_sensitivity (si, st->priv->case_sensitive_primary); - - search_info_set_match_color (si, "red"); - search_info_set_match_size_increase (si, 1); - search_info_set_match_bold (si, TRUE); - - } else if (st->priv->str_secondary) { - - search_info_set_string (si, st->priv->str_secondary); - search_info_set_case_sensitivity (si, st->priv->case_sensitive_secondary); - - search_info_set_match_color (si, "purple"); - search_info_set_match_size_increase (si, 1); - 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) -{ - e_searching_tokenizer_cleanup (E_SEARCHING_TOKENIZER (t)); - - 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); - - 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->str_primary); - st->priv->str_primary = NULL; - - if (search_str != NULL - && g_utf8_validate (search_str, -1, NULL) - && !only_whitespace (search_str)) { - - st->priv->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->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->str_secondary); - st->priv->str_secondary = NULL; - - if (search_str != NULL - && g_utf8_validate (search_str, -1, NULL) - && !only_whitespace (search_str)) { - - st->priv->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->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; -} - - - |