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-rw-r--r--src/traversal/transform.cc357
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diff --git a/src/traversal/transform.cc b/src/traversal/transform.cc
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-/*
- * Copyright (c) 2003-2007, John Wiegley. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are
- * met:
- *
- * - Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * - Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * - Neither the name of New Artisans LLC nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#include "transform.h"
-
-namespace ledger {
-
-#if 0
-void populate_account(account_t& acct, xml::document_t& document)
-{
- if (! acct.parent)
- return;
-
- account_repitem_t * acct_item;
- if (acct.data == NULL) {
- acct.data = acct_item =
- static_cast<account_repitem_t *>(repitem_t::wrap(&acct));
- if (acct.parent) {
- if (acct.parent->data == NULL)
- populate_account(*acct.parent, acct_item);
- else
- static_cast<account_repitem_t *>(acct.parent->data)->
- add_child(acct_item);
- }
- } else {
- acct_item = static_cast<account_repitem_t *>(acct.data);
- }
-
- if (item->kind == repitem_t::ACCOUNT)
- acct_item->add_child(item);
- else
- acct_item->add_content(item);
-}
-
-class populate_accounts : public repitem_t::select_callback_t {
- virtual void operator()(xml::document_t& document) {
- if (item->kind == repitem_t::TRANSACTION) {
- item->extract();
- populate_account(*static_cast<xact_repitem_t *>(item)->account(), item);
- }
- }
-};
-
-class clear_account_data : public repitem_t::select_callback_t {
- virtual void operator()(xml::document_t& document) {
- if (item->kind == repitem_t::ACCOUNT)
- static_cast<account_repitem_t *>(item)->account->data = NULL;
- }
-};
-
-void accounts_transform::execute(xml::document_t& document)
-{
- populate_accounts cb1;
- items->select_all(cb1);
-
- for (repitem_t * j = items->children; j; j = j->next) {
- assert(j->kind == repitem_t::JOURNAL);
-
- j->clear();
-
- for (accounts_map::iterator i = j->journal->master->accounts.begin();
- i != j->journal->master->accounts.end();
- i++) {
- assert((*i).second->data);
- j->add_child(static_cast<account_repitem_t *>((*i).second->data));
- (*i).second->data = NULL;
- }
- }
-
- clear_account_data cb2;
- items->select_all(cb2);
-}
-
-void compact_transform::execute(xml::document_t& document)
-{
- for (repitem_t * i = items; i; i = i->next) {
- if (i->kind == repitem_t::ACCOUNT) {
- while (! i->contents &&
- i->children && ! i->children->next) {
- account_repitem_t * p = static_cast<account_repitem_t *>(i);
- i = p->children;
- p->children = NULL;
- p->last_child = NULL;
-
- i->set_parent(p->parent);
- p->set_parent(NULL);
- i->prev = p->prev;
- if (p->prev)
- p->prev->next = i;
- p->prev = NULL;
- i->next = p->next;
- if (p->next)
- p->next->prev = i;
- p->next = NULL;
-
- if (i->parent->children == p)
- i->parent->children = i;
- if (i->parent->last_child == p)
- i->parent->last_child = i;
-
- account_repitem_t * acct = static_cast<account_repitem_t *>(i);
- acct->parents_elided = p->parents_elided + 1;
-
- checked_delete(p);
- }
- }
-
- if (i->children)
- execute(i->children);
- }
-}
-
-void clean_transform::execute(xml::document_t& document)
-{
- repitem_t * i = items;
- while (i) {
- if (i->kind == repitem_t::ACCOUNT) {
- value_t temp;
- i->add_total(temp);
- if (! temp) {
- repitem_t * next = i->next;
- checked_delete(i);
- i = next;
- continue;
- }
- }
-#if 0
- else if (i->kind == repitem_t::ENTRY && ! i->contents) {
- assert(! i->children);
- repitem_t * next = i->next;
- checked_delete(i);
- i = next;
- continue;
- }
-#endif
-
- if (i->children)
- execute(i->children);
-
- i = i->next;
- }
-}
-
-void entries_transform::execute(xml::document_t& document)
-{
-}
-
-void optimize_transform::execute(xml::document_t& document)
-{
- for (repitem_t * i = items; i; i = i->next) {
- if (i->kind == repitem_t::ENTRY) {
- if (i->contents &&
- i->contents->next &&
- ! i->contents->next->next) { // exactly two transactions
- xact_repitem_t * first =
- static_cast<xact_repitem_t *>(i->contents);
- xact_repitem_t * second =
- static_cast<xact_repitem_t *>(i->contents->next);
- if (first->xact->amount == - second->xact->amount)
- ;
- }
- }
-
- if (i->children)
- execute(i->children);
- }
-}
-
-void split_transform::execute(xml::document_t& document)
-{
- for (repitem_t * i = items; i; i = i->next) {
- if (i->contents && i->contents->next) {
- repitem_t * j;
-
- switch (i->kind) {
- case repitem_t::TRANSACTION:
- assert(false);
- j = new xact_repitem_t(static_cast<xact_repitem_t *>(i)->xact);
- break;
- case repitem_t::ENTRY:
- j = new entry_repitem_t(static_cast<entry_repitem_t *>(i)->entry);
- break;
- case repitem_t::ACCOUNT:
- j = new account_repitem_t(static_cast<account_repitem_t *>(i)->account);
- break;
- default:
- j = new repitem_t(i->kind);
- break;
- }
-
- j->set_parent(i->parent);
- j->prev = i;
- j->next = i->next;
- i->next = j;
-
- j->contents = i->contents->next;
- j->contents->prev = NULL;
- j->contents->set_parent(j);
- i->contents->next = NULL;
-
- j->last_content = i->last_content;
- if (j->contents == i->last_content)
- i->last_content = i->contents;
- }
-
- if (i->children)
- execute(i->children);
- }
-}
-
-void merge_transform::execute(xml::document_t& document)
-{
- for (repitem_t * i = items; i; i = i->next) {
- if (i->next) {
- assert(i->kind == i->next->kind);
- bool merge = false;
- switch (i->kind) {
- case repitem_t::TRANSACTION:
- assert(false);
- break;
- case repitem_t::ENTRY:
- if (static_cast<entry_repitem_t *>(i)->entry ==
- static_cast<entry_repitem_t *>(i->next)->entry)
- merge = true;
- break;
- case repitem_t::ACCOUNT:
-#if 0
- if (static_cast<account_repitem_t *>(i)->account ==
- static_cast<account_repitem_t *>(i->next)->account)
- merge = true;
-#endif
- break;
- default:
- break;
- }
-
- if (merge) {
- repitem_t * j = i->next;
-
- i->next = i->next->next;
- if (i->next)
- i->next->prev = i;
-
- for (repitem_t * k = j->contents; k; k = k->next)
- k->set_parent(i);
-
- i->last_content->next = j->contents;
- i->last_content = j->last_content;
-
- j->contents = NULL;
- assert(! j->children);
- checked_delete(j);
- }
- }
-
- if (i->children)
- execute(i->children);
- }
-}
-
-namespace {
-#define REPITEM_FLAGGED 0x1
-
- class mark_selected : public repitem_t::select_callback_t {
- virtual void operator()(xml::document_t& document) {
- item->flags |= REPITEM_FLAGGED;
- }
- };
-
- class mark_selected_and_ancestors : public repitem_t::select_callback_t {
- virtual void operator()(xml::document_t& document) {
- while (item->parent) {
- item->flags |= REPITEM_FLAGGED;
- item = item->parent;
- }
- }
- };
-
- class delete_unmarked : public repitem_t::select_callback_t {
- virtual void operator()(xml::document_t& document) {
- if (item->parent && ! (item->flags & REPITEM_FLAGGED))
- checked_delete(item);
- }
- };
-
- class delete_marked : public repitem_t::select_callback_t {
- virtual void operator()(xml::document_t& document) {
- if (item->flags & REPITEM_FLAGGED)
- checked_delete(item);
- }
- };
-
- class clear_flags : public repitem_t::select_callback_t {
- virtual void operator()(xml::document_t& document) {
- item->flags = 0;
- }
- };
-}
-
-void select_transform::execute(xml::document_t& document)
-{
- if (! path) {
- items->clear();
- return;
- }
- mark_selected_and_ancestors cb1;
- items->select(path, cb1);
-
- delete_unmarked cb2;
- items->select_all(cb2);
- clear_flags cb3;
- items->select_all(cb3);
-}
-
-void remove_transform::execute(xml::document_t& document)
-{
- if (! path)
- return;
- mark_selected cb1;
- items->select(path, cb1);
-
- delete_marked cb2;
- items->select_all(cb2);
- clear_flags cb3;
- items->select_all(cb3);
-}
-#endif
-
-} // namespace ledger
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