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ledger/src/textual.cc

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/*
* Copyright (c) 2003-2009, 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.
*/
#if defined(__GNUG__) && __GNUG__ < 3
#define _XOPEN_SOURCE
#endif
#include "textual.h"
#if defined(TIMELOG_SUPPORT)
#include "timelog.h"
#endif
#include "expr.h"
#include "parser.h"
#include "session.h"
#include "option.h"
#include "acconf.h"
namespace ledger {
namespace {
class ptristream : public std::istream
{
class ptrinbuf : public std::streambuf
{
protected:
char * ptr;
std::size_t len;
public:
ptrinbuf(char * _ptr, std::size_t _len) : ptr(_ptr), len(_len) {
setg(ptr, // beginning of putback area
ptr, // read position
ptr+len); // end position
}
protected:
virtual int_type underflow() {
// is read position before end of buffer?
if (gptr() < egptr())
return traits_type::to_int_type(*gptr());
else
return EOF;
}
virtual pos_type seekoff(off_type off, ios_base::seekdir way,
ios_base::openmode mode =
ios_base::in | ios_base::out)
{
switch (way) {
case std::ios::cur:
setg(ptr, gptr()+off, ptr+len);
break;
case std::ios::beg:
setg(ptr, ptr+off, ptr+len);
break;
case std::ios::end:
setg(ptr, egptr()+off, ptr+len);
break;
default:
assert(false);
break;
}
return pos_type(gptr() - ptr);
}
};
protected:
ptrinbuf buf;
public:
ptristream(char * ptr, std::size_t len)
: std::istream(0), buf(ptr, len) {
rdbuf(&buf);
}
};
}
#if defined(TEST_FOR_PARSER)
bool textual_parser_t::test(std::istream& in) const
{
char buf[12];
char * p;
in.read(buf, 11);
if (utf8::is_bom(buf))
p = &buf[3];
else
p = buf;
if (std::strncmp(p, "<?xml", 5) == 0)
throw_(parse_error,
"Ledger file contains XML data, but format was not recognized");
in.clear();
in.seekg(0, std::ios::beg);
assert(in.good());
return true;
}
#endif // TEST_FOR_PARSER
std::size_t textual_parser_t::parse(std::istream& in,
session_t& session,
journal_t& journal,
account_t * master,
const path * original_file)
{
TRACE_START(parsing_total, 1, "Total time spent parsing text:");
std::list<account_t *> account_stack;
#if defined(TIMELOG_SUPPORT)
time_log_t timelog(journal);
#endif
instance_t parsing_instance(account_stack,
#if defined(TIMELOG_SUPPORT)
timelog,
#endif
in, session, journal, master,
original_file);
parsing_instance.parse();
TRACE_STOP(parsing_total, 1);
TRACE_FINISH(instance_parse, 1); // report per-instance timers
if (parsing_instance.errors > 0)
throw static_cast<int>(parsing_instance.errors);
return parsing_instance.count;
}
namespace {
#if defined(STORE_XACT_EXPRS)
optional<expr_t>
#else
void
#endif
parse_amount_expr(std::istream& in,
amount_t& amount,
xact_t * xact,
uint_least8_t flags = 0)
{
expr_t expr(in, flags | static_cast<uint_least8_t>(expr_t::PARSE_PARTIAL));
DEBUG("textual.parse", "Parsed an amount expression");
#if defined(DEBUG_ENABLED)
DEBUG_IF("textual.parse") {
if (_debug_stream) {
ledger::dump_value_expr(*_debug_stream, expr);
*_debug_stream << std::endl;
}
}
#endif
if (expr) {
value_t result(expr.calc(*xact));
if (! result.is_amount())
throw_(parse_error, "Transactions may only specify simple amounts");
amount = result.as_amount();
DEBUG("textual.parse", "The transaction amount is " << amount);
#if defined(STORE_XACT_EXPRS)
return expr;
#endif
}
#if defined(STORE_XACT_EXPRS)
return none;
#endif
}
}
textual_parser_t::instance_t::instance_t
(std::list<account_t *>& _account_stack,
#if defined(TIMELOG_SUPPORT)
time_log_t& _timelog,
#endif
std::istream& _in,
session_t& _session,
journal_t& _journal,
account_t * _master,
const path * _original_file,
instance_t * _parent)
: account_stack(_account_stack),
#if defined(TIMELOG_SUPPORT)
timelog(_timelog),
#endif
parent(_parent), in(_in), session(_session),
journal(_journal), master(_master),
original_file(_original_file)
{
TRACE_CTOR(textual_parser_t::instance_t, "...");
if (! master)
master = journal.master;
account_stack.push_front(master);
pathname = journal.sources.back();
}
textual_parser_t::instance_t::~instance_t()
{
TRACE_DTOR(textual_parser_t::instance_t);
account_stack.pop_front();
if (auto_entry_finalizer.get())
journal.remove_entry_finalizer(auto_entry_finalizer.get());
}
void textual_parser_t::instance_t::parse()
{
INFO("Parsing file '" << pathname.string() << "'");
TRACE_START(instance_parse, 1,
"Done parsing file '" << pathname.string() << "'");
if (! in.good() || in.eof())
return;
linenum = 0;
errors = 0;
count = 0;
curr_pos = in.tellg();
while (in.good() && ! in.eof()) {
try {
read_next_directive();
}
catch (const std::exception& err) {
string current_context = error_context();
if (parent) {
std::list<instance_t *> instances;
for (instance_t * instance = parent;
instance;
instance = instance->parent)
instances.push_front(instance);
foreach (instance_t * instance, instances)
add_error_context("In file included from "
<< file_context(instance->pathname,
instance->linenum));
}
add_error_context("While parsing file "
<< file_context(pathname, linenum));
string context = error_context();
if (! context.empty())
std::cerr << context << std::endl;
if (! current_context.empty())
std::cerr << current_context << std::endl;
std::cerr << "Error: " << err.what() << std::endl;
errors++;
}
}
TRACE_STOP(instance_parse, 1);
}
std::streamsize textual_parser_t::instance_t::read_line(char *& line)
{
assert(in.good());
assert(! in.eof()); // no one should call us in that case
line_beg_pos = curr_pos;
in.getline(linebuf, MAX_LINE);
std::streamsize len = in.gcount();
if (len > 0) {
if (linenum == 0 && utf8::is_bom(linebuf))
line = &linebuf[3];
else
line = linebuf;
if (line[len - 1] == '\r') // strip Windows CRLF down to LF
line[--len] = '\0';
linenum++;
curr_pos = line_beg_pos;
curr_pos += len;
return len - 1; // LF is being silently dropped
}
return 0;
}
void textual_parser_t::instance_t::read_next_directive()
{
char * line;
std::streamsize len = read_line(line);
if (len == 0 || line == NULL)
return;
switch (line[0]) {
case '\0':
assert(false); // shouldn't ever reach here
break;
case ' ':
case '\t': {
char * p = skip_ws(line);
if (*p)
throw parse_error("Line begins with whitespace");
break;
}
case '#': // comment line
case ';': // comment line
break;
case '-': // option setting
option_directive(line);
break;
case '0':
case '1':
case '2':
case '3':
case '4':
case '5':
case '6':
case '7':
case '8':
case '9':
entry_directive(line, len);
break;
case '=': // automated entry
automated_entry_directive(line);
break;
case '~': // period entry
period_entry_directive(line);
break;
#if defined(TIMELOG_SUPPORT)
case 'i':
clock_in_directive(line, false);
break;
case 'I':
clock_in_directive(line, true);
break;
case 'o':
clock_out_directive(line, false);
break;
case 'O':
clock_out_directive(line, true);
break;
case 'h':
case 'b':
break;
#endif // TIMELOG_SUPPORT
case 'A': // a default account for unbalanced xacts
default_account_directive(line);
break;
case 'C': // a set of conversions
price_conversion_directive(line);
break;
case 'D': // a default commodity for "entry"
default_commodity_directive(line);
break;
case 'N': // don't download prices
nomarket_directive(line);
break;
case 'P': // a pricing entry
price_entry_directive(line);
break;
case 'Y': // set the current year
year_directive(line);
break;
case '@':
case '!':
line++;
// fall through...
default: // some other directive
general_directive(line);
break;
}
}
#if defined(TIMELOG_SUPPORT)
void textual_parser_t::instance_t::clock_in_directive(char * line,
bool capitalized)
{
string date(line, 2, 19);
char * p = skip_ws(line + 22);
char * n = next_element(p, true);
timelog.clock_in(parse_datetime(date),
account_stack.front()->find_account(p), n ? n : "");
}
void textual_parser_t::instance_t::clock_out_directive(char * line,
bool capitalized)
{
string date(line, 2, 19);
char * p = skip_ws(line + 22);
char * n = next_element(p, true);
timelog.clock_out(parse_datetime(date),
p ? account_stack.front()->find_account(p) : NULL, n);
count++;
}
#endif // TIMELOG_SUPPORT
void textual_parser_t::instance_t::default_commodity_directive(char * line)
{
amount_t amt(skip_ws(line + 1));
assert(amt.valid());
amount_t::current_pool->default_commodity = &amt.commodity();
}
void textual_parser_t::instance_t::default_account_directive(char * line)
{
journal.basket = account_stack.front()->find_account(skip_ws(line + 1));
}
void textual_parser_t::instance_t::price_conversion_directive(char * line)
{
if (char * p = std::strchr(line + 1, '=')) {
*p++ = '\0';
#if 0
// jww (2008-04-22): NYI!
parse_conversion(line + 1, p);
#endif
}
}
namespace {
void parse_symbol(char *& p, string& symbol)
{
if (*p == '"') {
char * q = std::strchr(p + 1, '"');
if (! q)
throw parse_error("Quoted commodity symbol lacks closing quote");
symbol = string(p + 1, 0, q - p - 1);
p = q + 2;
} else {
char * q = next_element(p);
symbol = p;
if (q)
p = q;
else
p += symbol.length();
}
if (symbol.empty())
throw parse_error("Failed to parse commodity");
}
}
void textual_parser_t::instance_t::price_entry_directive(char * line)
{
char * date_field_ptr = skip_ws(line + 1);
char * time_field_ptr = next_element(date_field_ptr);
if (! time_field_ptr) return;
string date_field = date_field_ptr;
char * symbol_and_price;
datetime_t datetime;
if (std::isdigit(time_field_ptr[0])) {
symbol_and_price = next_element(time_field_ptr);
if (! symbol_and_price) return;
datetime = parse_datetime(date_field + " " + time_field_ptr);
} else {
symbol_and_price = time_field_ptr;
datetime = parse_datetime(date_field);
}
string symbol;
parse_symbol(symbol_and_price, symbol);
amount_t price(symbol_and_price);
assert(price.valid());
if (commodity_t * commodity =
amount_t::current_pool->find_or_create(symbol))
commodity->add_price(datetime, price);
}
void textual_parser_t::instance_t::nomarket_directive(char * line)
{
char * p = skip_ws(line + 1);
string symbol;
parse_symbol(p, symbol);
if (commodity_t * commodity =
amount_t::current_pool->find_or_create(symbol))
commodity->add_flags(COMMODITY_NOMARKET);
}
void textual_parser_t::instance_t::year_directive(char * line)
{
current_year = std::atoi(skip_ws(line + 1));
}
void textual_parser_t::instance_t::option_directive(char * line)
{
char * p = next_element(line);
if (! p) {
p = std::strchr(line, '=');
if (p)
*p++ = '\0';
}
process_option(line + 2, session, p, line);
}
void textual_parser_t::instance_t::automated_entry_directive(char * line)
{
if (! auto_entry_finalizer.get()) {
auto_entry_finalizer.reset(new auto_entry_finalizer_t(&journal));
journal.add_entry_finalizer(auto_entry_finalizer.get());
}
istream_pos_type pos = curr_pos;
std::size_t lnum = linenum;
std::auto_ptr<auto_entry_t> ae(new auto_entry_t(skip_ws(line + 1)));
if (parse_xacts(account_stack.front(), *ae.get(), "automated")) {
journal.auto_entries.push_back(ae.get());
ae->pathname = pathname;
ae->beg_pos = pos;
ae->beg_line = lnum;
ae->end_pos = curr_pos;
ae->end_line = linenum;
ae.release();
}
}
void textual_parser_t::instance_t::period_entry_directive(char * line)
{
std::auto_ptr<period_entry_t> pe(new period_entry_t(skip_ws(line + 1)));
if (! pe->period)
throw_(parse_error, "Parsing time period '" << line << "'");
istream_pos_type pos = curr_pos;
std::size_t lnum = linenum;
if (parse_xacts(account_stack.front(), *pe.get(), "period")) {
if (pe->finalize()) {
extend_entry_base(&journal, *pe.get(), true);
journal.period_entries.push_back(pe.get());
pe->pathname = pathname;
pe->beg_pos = pos;
pe->beg_line = lnum;
pe->end_pos = curr_pos;
pe->end_line = linenum;
pe.release();
} else {
throw parse_error("Period entry failed to balance");
}
}
}
void textual_parser_t::instance_t::entry_directive(char * line, std::streamsize len)
{
TRACE_START(entries, 1, "Time spent handling entries:");
if (entry_t * entry = parse_entry(line, len, account_stack.front())) {
std::auto_ptr<entry_t> manager(entry);
if (journal.add_entry(entry)) {
manager.release(); // it's owned by the journal now
count++;
}
// It's perfectly valid for the journal to reject the entry, which it will
// do if the entry has no substantive effect (for example, a checking
// entry, all of whose transactions have null amounts).
} else {
throw parse_error("Failed to parse entry");
}
TRACE_STOP(entries, 1);
}
void textual_parser_t::instance_t::include_directive(char * line)
{
path filename(next_element(line));
#if 0
if (filename[0] != '/' && filename[0] != '\\' && filename[0] != '~') {
string::size_type pos = pathname.prev.rfind('/');
if (pos == string::npos)
pos = pathname.prev.rfind('\\');
if (pos != string::npos)
filename = string(pathname.prev, 0, pos + 1) + filename;
}
#endif
filename = resolve_path(filename);
DEBUG("textual.include", "Line " << linenum << ": " <<
"Including path '" << filename << "'");
ifstream stream(filename);
instance_t instance(account_stack,
#if defined(TIMELOG_SUPPORT)
timelog,
#endif
stream, session, journal, master,
&filename, this);
instance.parse();
errors += instance.errors;
count += instance.count;
}
void textual_parser_t::instance_t::account_directive(char * line)
{
if (account_t * acct =
account_stack.front()->find_account(next_element(line)))
account_stack.push_front(acct);
else
assert(! "Failed to create account");
}
void textual_parser_t::instance_t::end_directive(char * line)
{
account_stack.pop_front();
}
void textual_parser_t::instance_t::alias_directive(char * line)
{
char * b = skip_ws(line + 1);
if (char * e = std::strchr(b, '=')) {
char * z = e - 1;
while (std::isspace(*z))
*z-- = '\0';
*e++ = '\0';
e = skip_ws(e);
// Once we have an alias name (b) and the target account
// name (e), add a reference to the account in the
// `account_aliases' map, which is used by the xact
// parser to resolve alias references.
account_t * acct = account_stack.front()->find_account(e);
std::pair<accounts_map::iterator, bool> result
= account_aliases.insert(accounts_map::value_type(b, acct));
assert(result.second);
}
}
void textual_parser_t::instance_t::define_directive(char * line)
{
expr_t def(skip_ws(line + 1));
def.compile(session); // causes definitions to be established
}
void textual_parser_t::instance_t::general_directive(char * line)
{
char * p = next_element(line);
string word(line + 1);
switch (*p) {
case 'a':
if (std::strcmp(p, "account") == 0) {
account_directive(line);
return;
}
else if (std::strcmp(p, "alias") == 0) {
alias_directive(line);
return;
}
break;
case 'd':
if (std::strcmp(p, "def") == 0) {
define_directive(line);
return;
}
break;
case 'e':
if (std::strcmp(p, "end") == 0) {
end_directive(line);
return;
}
break;
case 'i':
if (std::strcmp(p, "include") == 0) {
include_directive(line);
return;
}
break;
}
static const std::size_t textdir_len = std::strlen("ledger_textdir_");
scoped_array<char> directive(new char[std::strlen(p) + textdir_len + 1]);
std::strcpy(directive.get(), "ledger_textdir_");
std::strcpy(directive.get() + textdir_len, p);
if (expr_t::ptr_op_t op = lookup(directive.get())) {
call_scope_t args(*this);
args.push_back(string_value(p));
op->as_function()(args);
}
}
xact_t * textual_parser_t::instance_t::parse_xact(char * line,
std::streamsize len,
account_t * account,
entry_t * entry)
{
TRACE_START(xact_details, 1, "Time spent parsing transactions:");
std::auto_ptr<xact_t> xact(new xact_t);
xact->entry = entry; // this could be NULL
xact->pathname = pathname;
xact->beg_pos = line_beg_pos;
xact->beg_line = linenum;
static char buf[MAX_LINE + 1];
std::strcpy(buf, line);
std::size_t beg = 0;
try {
// Parse the state flag
assert(line);
assert(*line);
char * p = skip_ws(line);
switch (*p) {
case '*':
xact->set_state(item_t::CLEARED);
p = skip_ws(p + 1);
DEBUG("textual.parse", "line " << linenum << ": "
<< "Parsed the CLEARED flag");
break;
case '!':
xact->set_state(item_t::PENDING);
p = skip_ws(p + 1);
DEBUG("textual.parse", "line " << linenum << ": "
<< "Parsed the PENDING flag");
break;
}
if (entry &&
((entry->_state == item_t::CLEARED && xact->state() != item_t::CLEARED) ||
(entry->_state == item_t::PENDING && xact->state() == item_t::UNCLEARED)))
xact->set_state(entry->_state);
// Parse the account name
if (! *p)
throw parse_error("Transaction has no account");
char * next = next_element(p, true);
char * e = p + std::strlen(p);
if ((*p == '[' && *(e - 1) == ']') || (*p == '(' && *(e - 1) == ')')) {
xact->add_flags(XACT_VIRTUAL);
DEBUG("textual.parse", "line " << linenum << ": "
<< "Parsed a virtual account name");
if (*p == '[') {
xact->add_flags(XACT_MUST_BALANCE);
DEBUG("textual.parse", "line " << linenum << ": "
<< "Transaction must balance");
}
p++; e--;
}
string name(p, e - p);
DEBUG("textual.parse", "line " << linenum << ": "
<< "Parsed account name " << name);
if (account_aliases.size() > 0) {
accounts_map::const_iterator i = account_aliases.find(name);
if (i != account_aliases.end())
xact->account = (*i).second;
}
if (! xact->account)
xact->account = account->find_account(name);
// Parse the optional amount
bool saw_amount = false;
if (next && *next && (*next != ';' && *next != '=')) {
saw_amount = true;
beg = next - line;
ptristream stream(next, len - beg);
if (*next != '(') // indicates a value expression
xact->amount.parse(stream, amount_t::PARSE_NO_REDUCE);
else
parse_amount_expr(stream, xact->amount, xact.get(),
static_cast<uint_least8_t>(expr_t::PARSE_NO_REDUCE) |
static_cast<uint_least8_t>(expr_t::PARSE_NO_ASSIGN));
if (! xact->amount.is_null())
xact->amount.reduce();
DEBUG("textual.parse", "line " << linenum << ": "
<< "xact amount = " << xact->amount);
if (stream.eof()) {
next = NULL;
} else {
next = skip_ws(next + stream.tellg());
// Parse the optional cost (@ PER-UNIT-COST, @@ TOTAL-COST)
if (*next == '@') {
DEBUG("textual.parse", "line " << linenum << ": "
<< "Found a price indicator");
bool per_unit = true;
if (*++next == '@') {
per_unit = false;
DEBUG("textual.parse", "line " << linenum << ": "
<< "And it's for a total price");
}
beg = ++next - line;
p = skip_ws(next);
if (*p) {
xact->cost = amount_t();
beg = p - line;
ptristream cstream(p, len - beg);
if (*p != '(') // indicates a value expression
xact->cost->parse(cstream, amount_t::PARSE_NO_MIGRATE);
else
parse_amount_expr(cstream, *xact->cost, xact.get(),
static_cast<uint_least8_t>(expr_t::PARSE_NO_MIGRATE) |
static_cast<uint_least8_t>(expr_t::PARSE_NO_ASSIGN));
if (xact->cost->sign() < 0)
throw parse_error("A transaction's cost may not be negative");
amount_t per_unit_cost(*xact->cost);
if (per_unit)
*xact->cost *= xact->amount;
else
per_unit_cost /= xact->amount;
commodity_t::exchange(xact->amount.commodity(),
per_unit_cost, datetime_t(*xact->date()));
DEBUG("textual.parse", "line " << linenum << ": "
<< "Total cost is " << *xact->cost);
DEBUG("textual.parse", "line " << linenum << ": "
<< "Per-unit cost is " << per_unit_cost);
DEBUG("textual.parse", "line " << linenum << ": "
<< "Annotated amount is " << xact->amount);
if (cstream.eof())
next = NULL;
else
next = skip_ws(p + cstream.tellg());
} else {
throw parse_error("Expected a cost amount");
}
}
}
}
// Parse the optional balance assignment
if (entry && next && *next == '=') {
DEBUG("textual.parse", "line " << linenum << ": "
<< "Found a balance assignment indicator");
beg = ++next - line;
p = skip_ws(next);
if (*p) {
xact->assigned_amount = amount_t();
beg = p - line;
ptristream stream(p, len - beg);
if (*p != '(') // indicates a value expression
xact->assigned_amount->parse(stream, amount_t::PARSE_NO_MIGRATE);
else
parse_amount_expr(stream, *xact->assigned_amount, xact.get(),
static_cast<uint_least8_t>(expr_t::PARSE_NO_MIGRATE));
if (xact->assigned_amount->is_null())
throw parse_error("An assigned balance must evaluate to a constant value");
DEBUG("textual.parse", "line " << linenum << ": "
<< "XACT assign: parsed amt = " << *xact->assigned_amount);
account_t::xdata_t& xdata(xact->account->xdata());
amount_t& amt(*xact->assigned_amount);
DEBUG("xact.assign", "line " << linenum << ": "
"account balance = " << xdata.value.strip_annotations());
DEBUG("xact.assign", "line " << linenum << ": "
"xact amount = " << amt.strip_annotations());
amount_t diff;
switch (xdata.value.type()) {
case value_t::AMOUNT:
diff = amt - xdata.value.as_amount();
break;
case value_t::BALANCE:
if (optional<amount_t> comm_bal =
xdata.value.as_balance().commodity_amount(amt.commodity()))
diff = amt - *comm_bal;
else
diff = amt;
break;
case value_t::BALANCE_PAIR:
if (optional<amount_t> comm_bal =
xdata.value.as_balance_pair().commodity_amount(amt.commodity()))
diff = amt - *comm_bal;
else
diff = amt;
break;
default:
diff = amt;
break;
}
DEBUG("xact.assign", "line " << linenum << ": "
<< "diff = " << diff.strip_annotations());
DEBUG("textual.parse", "line " << linenum << ": "
<< "XACT assign: diff = " << diff.strip_annotations());
if (! diff.is_zero()) {
if (! xact->amount.is_null()) {
diff -= xact->amount;
if (! diff.is_zero()) {
xact_t * temp = new xact_t(xact->account, diff,
ITEM_GENERATED | XACT_CALCULATED);
entry->add_xact(temp);
DEBUG("textual.parse", "line " << linenum << ": "
<< "Created balancing transaction");
}
} else {
xact->amount = diff;
DEBUG("textual.parse", "line " << linenum << ": "
<< "Overwrite null transaction");
}
}
if (stream.eof())
next = NULL;
else
next = skip_ws(p + stream.tellg());
} else {
throw parse_error("Expected an assigned balance amount");
}
}
// Parse the optional note
if (next && *next == ';') {
xact->append_note(++next);
next = line + len;
DEBUG("textual.parse", "line " << linenum << ": "
<< "Parsed a transaction note");
}
// There should be nothing more to read
if (next && *next)
throw_(parse_error, "Unexpected char '" << *next
<< "' (Note: inline math requires parentheses)");
xact->end_pos = curr_pos;
xact->end_line = linenum;
TRACE_STOP(xact_details, 1);
return xact.release();
}
catch (const std::exception& err) {
add_error_context("While parsing transaction:");
add_error_context(line_context(buf, beg, len));
throw;
}
}
bool textual_parser_t::instance_t::parse_xacts(account_t * account,
entry_base_t& entry,
const string& kind)
{
TRACE_START(entry_xacts, 1, "Time spent parsing transactions:");
bool added = false;
while (peek_whitespace_line()) {
char * line;
std::streamsize len = read_line(line);
assert(len > 0);
if (xact_t * xact = parse_xact(line, len, account, NULL)) {
entry.add_xact(xact);
added = true;
}
}
TRACE_STOP(entry_xacts, 1);
return added;
}
entry_t * textual_parser_t::instance_t::parse_entry(char * line,
std::streamsize len,
account_t * account)
{
TRACE_START(entry_text, 1, "Time spent parsing entry text:");
std::auto_ptr<entry_t> curr(new entry_t);
curr->pathname = pathname;
curr->beg_pos = line_beg_pos;
curr->beg_line = linenum;
// Parse the date
char * next = next_element(line);
if (char * p = std::strchr(line, '=')) {
*p++ = '\0';
curr->_date_eff = parse_date(p);
}
curr->_date = parse_date(line);
// Parse the optional cleared flag: *
item_t::state_t state = item_t::UNCLEARED;
if (next) {
switch (*next) {
case '*':
state = item_t::CLEARED;
next = skip_ws(++next);
break;
case '!':
state = item_t::PENDING;
next = skip_ws(++next);
break;
}
}
// Parse the optional code: (TEXT)
if (next && *next == '(') {
if (char * p = std::strchr(next++, ')')) {
*p++ = '\0';
curr->code = next;
next = skip_ws(p);
}
}
// Parse the description text
if (next && *next) {
curr->payee = next;
next = next_element(next, true);
} else {
curr->payee = "<Unspecified payee>";
}
// Parse the entry note
if (next && *next == ';')
curr->append_note(next);
TRACE_STOP(entry_text, 1);
// Parse all of the xacts associated with this entry
TRACE_START(entry_details, 1, "Time spent parsing entry details:");
xact_t * last_xact = NULL;
while (peek_whitespace_line()) {
len = read_line(line);
char * p = skip_ws(line);
if (! *p)
throw parse_error("Line contains only whitespace");
if (*p == ';') {
item_t * item;
if (last_xact)
item = last_xact;
else
item = curr.get();
// This is a trailing note, and possibly a metadata info tag
item->append_note(p + 1);
item->end_pos = curr_pos;
item->end_line++;
}
else if (xact_t * xact = parse_xact(p, len - (p - line), account,
curr.get())) {
curr->add_xact(xact);
last_xact = xact;
}
}
curr->end_pos = curr_pos;
curr->end_line = linenum;
TRACE_STOP(entry_details, 1);
return curr.release();
}
expr_t::ptr_op_t textual_parser_t::instance_t::lookup(const string& name)
{
return session.lookup(name);
}
} // namespace ledger
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