Tag, ...: move to libtag.a

1 files changed, 0 insertions, 509 deletions

diff --git a/src/Tag.cxx b/src/Tag.cxx
deleted file mode 100644
index c960da537..000000000
--- a/src/Tag.cxx
+++ /dev/null
@@ -1,509 +0,0 @@
-/*
- * Copyright (C) 2003-2013 The Music Player Daemon Project
- * http://www.musicpd.org
- *
- * 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.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
- */
-
-#include "config.h"
-#include "Tag.hxx"
-#include "TagInternal.hxx"
-#include "TagPool.hxx"
-#include "ConfigGlobal.hxx"
-#include "ConfigOption.hxx"
-#include "Song.hxx"
-#include "system/FatalError.hxx"
-
-#include <glib.h>
-#include <assert.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-
-/**
- * Maximum number of items managed in the bulk list; if it is
- * exceeded, we switch back to "normal" reallocation.
- */
-#define BULK_MAX 64
-
-static struct {
-#ifndef NDEBUG
-	bool busy;
-#endif
-	TagItem *items[BULK_MAX];
-} bulk;
-
-bool ignore_tag_items[TAG_NUM_OF_ITEM_TYPES];
-
-enum tag_type
-tag_name_parse(const char *name)
-{
-	assert(name != nullptr);
-
-	for (unsigned i = 0; i < TAG_NUM_OF_ITEM_TYPES; ++i) {
-		assert(tag_item_names[i] != nullptr);
-
-		if (strcmp(name, tag_item_names[i]) == 0)
-			return (enum tag_type)i;
-	}
-
-	return TAG_NUM_OF_ITEM_TYPES;
-}
-
-enum tag_type
-tag_name_parse_i(const char *name)
-{
-	assert(name != nullptr);
-
-	for (unsigned i = 0; i < TAG_NUM_OF_ITEM_TYPES; ++i) {
-		assert(tag_item_names[i] != nullptr);
-
-		if (g_ascii_strcasecmp(name, tag_item_names[i]) == 0)
-			return (enum tag_type)i;
-	}
-
-	return TAG_NUM_OF_ITEM_TYPES;
-}
-
-static size_t
-items_size(const Tag &tag)
-{
-	return tag.num_items * sizeof(TagItem *);
-}
-
-void tag_lib_init(void)
-{
-	const char *value;
-	int quit = 0;
-	char *temp;
-	char *s;
-	char *c;
-	enum tag_type type;
-
-	/* parse the "metadata_to_use" config parameter below */
-
-	/* ignore comments by default */
-	ignore_tag_items[TAG_COMMENT] = true;
-
-	value = config_get_string(CONF_METADATA_TO_USE, nullptr);
-	if (value == nullptr)
-		return;
-
-	memset(ignore_tag_items, true, TAG_NUM_OF_ITEM_TYPES);
-
-	if (0 == g_ascii_strcasecmp(value, "none"))
-		return;
-
-	temp = c = s = g_strdup(value);
-	while (!quit) {
-		if (*s == ',' || *s == '\0') {
-			if (*s == '\0')
-				quit = 1;
-			*s = '\0';
-
-			c = g_strstrip(c);
-			if (*c == 0)
-				continue;
-
-			type = tag_name_parse_i(c);
-			if (type == TAG_NUM_OF_ITEM_TYPES)
-				FormatFatalError("error parsing metadata item \"%s\"",
-						 c);
-
-			ignore_tag_items[type] = false;
-
-			s++;
-			c = s;
-		}
-		s++;
-	}
-
-	g_free(temp);
-}
-
-void
-Tag::Clear()
-{
-	time = -1;
-	has_playlist = false;
-
-	tag_pool_lock.lock();
-	for (unsigned i = 0; i < num_items; ++i)
-		tag_pool_put_item(items[i]);
-	tag_pool_lock.unlock();
-
-	if (items == bulk.items) {
-#ifndef NDEBUG
-		assert(bulk.busy);
-		bulk.busy = false;
-#endif
-	} else
-		g_free(items);
-
-	items = nullptr;
-	num_items = 0;
-}
-
-void
-Tag::DeleteItem(unsigned idx)
-{
-	assert(idx < num_items);
-	--num_items;
-
-	tag_pool_lock.lock();
-	tag_pool_put_item(items[idx]);
-	tag_pool_lock.unlock();
-
-	if (num_items - idx > 0) {
-		memmove(items + idx, items + idx + 1,
-			(num_items - idx) * sizeof(items[0]));
-	}
-
-	if (num_items > 0) {
-		items = (TagItem **)
-			g_realloc(items, items_size(*this));
-	} else {
-		g_free(items);
-		items = nullptr;
-	}
-}
-
-void
-Tag::ClearItemsByType(tag_type type)
-{
-	for (unsigned i = 0; i < num_items; i++) {
-		if (items[i]->type == type) {
-			DeleteItem(i);
-			/* decrement since when just deleted this node */
-			i--;
-		}
-	}
-}
-
-Tag::~Tag()
-{
-	tag_pool_lock.lock();
-	for (int i = num_items; --i >= 0; )
-		tag_pool_put_item(items[i]);
-	tag_pool_lock.unlock();
-
-	if (items == bulk.items) {
-#ifndef NDEBUG
-		assert(bulk.busy);
-		bulk.busy = false;
-#endif
-	} else
-		g_free(items);
-}
-
-Tag::Tag(const Tag &other)
-	:time(other.time), has_playlist(other.has_playlist),
-	 items(nullptr),
-	 num_items(other.num_items)
-{
-	if (num_items > 0) {
-		items = (TagItem **)g_malloc(items_size(other));
-
-		tag_pool_lock.lock();
-		for (unsigned i = 0; i < num_items; i++)
-			items[i] = tag_pool_dup_item(other.items[i]);
-		tag_pool_lock.unlock();
-	}
-}
-
-Tag *
-Tag::Merge(const Tag &base, const Tag &add)
-{
-	unsigned n;
-
-	/* allocate new tag object */
-
-	Tag *ret = new Tag();
-	ret->time = add.time > 0 ? add.time : base.time;
-	ret->num_items = base.num_items + add.num_items;
-	ret->items = ret->num_items > 0
-		? (TagItem **)g_malloc(items_size(*ret))
-		: nullptr;
-
-	tag_pool_lock.lock();
-
-	/* copy all items from "add" */
-
-	for (unsigned i = 0; i < add.num_items; ++i)
-		ret->items[i] = tag_pool_dup_item(add.items[i]);
-
-	n = add.num_items;
-
-	/* copy additional items from "base" */
-
-	for (unsigned i = 0; i < base.num_items; ++i)
-		if (!add.HasType(base.items[i]->type))
-			ret->items[n++] = tag_pool_dup_item(base.items[i]);
-
-	tag_pool_lock.unlock();
-
-	assert(n <= ret->num_items);
-
-	if (n < ret->num_items) {
-		/* some tags were not copied - shrink ret->items */
-		assert(n > 0);
-
-		ret->num_items = n;
-		ret->items = (TagItem **)
-			g_realloc(ret->items, items_size(*ret));
-	}
-
-	return ret;
-}
-
-Tag *
-Tag::MergeReplace(Tag *base, Tag *add)
-{
-	if (add == nullptr)
-		return base;
-
-	if (base == nullptr)
-		return add;
-
-	Tag *tag = Merge(*base, *add);
-	delete base;
-	delete add;
-
-	return tag;
-}
-
-const char *
-Tag::GetValue(tag_type type) const
-{
-	assert(type < TAG_NUM_OF_ITEM_TYPES);
-
-	for (unsigned i = 0; i < num_items; i++)
-		if (items[i]->type == type)
-			return items[i]->value;
-
-	return nullptr;
-}
-
-bool
-Tag::HasType(tag_type type) const
-{
-	return GetValue(type) != nullptr;
-}
-
-bool
-Tag::Equals(const Tag &other) const
-{
-	if (time != other.time)
-		return false;
-
-	if (num_items != other.num_items)
-		return false;
-
-	for (unsigned i = 0; i < num_items; i++) {
-		if (items[i]->type != other.items[i]->type)
-			return false;
-		if (strcmp(items[i]->value, other.items[i]->value)) {
-			return false;
-		}
-	}
-
-	return true;
-}
-
-/**
- * Replace invalid sequences with the question mark.
- */
-static char *
-patch_utf8(const char *src, size_t length, const gchar *end)
-{
-	/* duplicate the string, and replace invalid bytes in that
-	   buffer */
-	char *dest = g_strdup(src);
-
-	do {
-		dest[end - src] = '?';
-	} while (!g_utf8_validate(end + 1, (src + length) - (end + 1), &end));
-
-	return dest;
-}
-
-static char *
-fix_utf8(const char *str, size_t length)
-{
-	const gchar *end;
-	char *temp;
-	gsize written;
-
-	assert(str != nullptr);
-
-	/* check if the string is already valid UTF-8 */
-	if (g_utf8_validate(str, length, &end))
-		return nullptr;
-
-	/* no, it's not - try to import it from ISO-Latin-1 */
-	temp = g_convert(str, length, "utf-8", "iso-8859-1",
-			 nullptr, &written, nullptr);
-	if (temp != nullptr)
-		/* success! */
-		return temp;
-
-	/* no, still broken - there's no medication, just patch
-	   invalid sequences */
-	return patch_utf8(str, length, end);
-}
-
-void
-Tag::BeginAdd()
-{
-	assert(!bulk.busy);
-	assert(items == nullptr);
-	assert(num_items == 0);
-
-#ifndef NDEBUG
-	bulk.busy = true;
-#endif
-	items = bulk.items;
-}
-
-void
-Tag::EndAdd()
-{
-	if (items == bulk.items) {
-		assert(num_items <= BULK_MAX);
-
-		if (num_items > 0) {
-			/* copy the tag items from the bulk list over
-			   to a new list (which fits exactly) */
-			items = (TagItem **)
-				g_malloc(items_size(*this));
-			memcpy(items, bulk.items, items_size(*this));
-		} else
-			items = nullptr;
-	}
-
-#ifndef NDEBUG
-	bulk.busy = false;
-#endif
-}
-
-static bool
-char_is_non_printable(unsigned char ch)
-{
-	return ch < 0x20;
-}
-
-static const char *
-find_non_printable(const char *p, size_t length)
-{
-	for (size_t i = 0; i < length; ++i)
-		if (char_is_non_printable(p[i]))
-			return p + i;
-
-	return nullptr;
-}
-
-/**
- * Clears all non-printable characters, convert them to space.
- * Returns nullptr if nothing needs to be cleared.
- */
-static char *
-clear_non_printable(const char *p, size_t length)
-{
-	const char *first = find_non_printable(p, length);
-	char *dest;
-
-	if (first == nullptr)
-		return nullptr;
-
-	dest = g_strndup(p, length);
-
-	for (size_t i = first - p; i < length; ++i)
-		if (char_is_non_printable(dest[i]))
-			dest[i] = ' ';
-
-	return dest;
-}
-
-static char *
-fix_tag_value(const char *p, size_t length)
-{
-	char *utf8, *cleared;
-
-	utf8 = fix_utf8(p, length);
-	if (utf8 != nullptr) {
-		p = utf8;
-		length = strlen(p);
-	}
-
-	cleared = clear_non_printable(p, length);
-	if (cleared == nullptr)
-		cleared = utf8;
-	else
-		g_free(utf8);
-
-	return cleared;
-}
-
-void
-Tag::AddItemInternal(tag_type type, const char *value, size_t len)
-{
-	unsigned int i = num_items;
-	char *p;
-
-	p = fix_tag_value(value, len);
-	if (p != nullptr) {
-		value = p;
-		len = strlen(value);
-	}
-
-	num_items++;
-
-	if (items != bulk.items)
-		/* bulk mode disabled */
-		items = (TagItem **)
-			g_realloc(items, items_size(*this));
-	else if (num_items >= BULK_MAX) {
-		/* bulk list already full - switch back to non-bulk */
-		assert(bulk.busy);
-
-		items = (TagItem **)g_malloc(items_size(*this));
-		memcpy(items, bulk.items,
-		       items_size(*this) - sizeof(TagItem *));
-	}
-
-	tag_pool_lock.lock();
-	items[i] = tag_pool_get_item(type, value, len);
-	tag_pool_lock.unlock();
-
-	g_free(p);
-}
-
-void
-Tag::AddItem(tag_type type, const char *value, size_t len)
-{
-	if (ignore_tag_items[type])
-		return;
-
-	if (value == nullptr || len == 0)
-		return;
-
-	AddItemInternal(type, value, len);
-}
-
-void
-Tag::AddItem(tag_type type, const char *value)
-{
-	AddItem(type, value, strlen(value));
-}