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#include "format.h"
#include "error.h"
namespace ledger {
std::string truncated(const std::string& str, unsigned int width)
{
char buf[256];
std::memset(buf, '\0', 255);
assert(width < 256);
std::strncpy(buf, str.c_str(), str.length());
if (buf[width])
std::strcpy(&buf[width - 2], "..");
return buf;
}
std::string maximal_account_name(const item_t * item,
const item_t * parent)
{
std::string name = item->account->name;
for (const item_t * i = item->parent;
i && i->account && i != parent;
i = i->parent)
name = i->account->name + ":" + name;
return name;
}
node_t * format_t::value_expr = NULL;
node_t * format_t::total_expr = NULL;
element_t * format_t::parse_elements(const std::string& fmt)
{
element_t * result = NULL;
element_t * current = NULL;
std::string str;
for (const char * p = fmt.c_str(); *p; p++) {
if (*p == '%') {
if (! result) {
current = result = new element_t;
} else {
current->next = new element_t;
current = current->next;
}
if (! str.empty()) {
current->type = element_t::STRING;
current->chars = str;
str = "";
current->next = new element_t;
current = current->next;
}
++p;
if (*p == '-') {
current->align_left = true;
++p;
}
std::string num;
while (*p && std::isdigit(*p))
num += *p++;
if (! num.empty())
current->min_width = std::atol(num.c_str());
if (*p == '.') {
++p;
num = "";
while (*p && std::isdigit(*p))
num += *p++;
if (! num.empty()) {
current->max_width = std::atol(num.c_str());
if (current->min_width == 0)
current->min_width = current->max_width;
}
}
switch (*p) {
case '%':
current->type = element_t::STRING;
current->chars = "%";
break;
case '(':
++p;
num = "";
while (*p && *p != ')')
num += *p++;
if (*p != ')')
throw format_error("Missing ')'");
current->type = element_t::VALUE_EXPR;
current->val_expr = parse_expr(num);
break;
case '[':
++p;
num = "";
while (*p && *p != ']')
num += *p++;
if (*p != ']')
throw format_error("Missing ']'");
current->type = element_t::DATE_STRING;
current->chars = num;
break;
case 'd':
current->type = element_t::DATE_STRING;
current->chars = "%Y/%m/%d";
break;
case 'p': current->type = element_t::PAYEE; break;
case 'n': current->type = element_t::ACCOUNT_NAME; break;
case 'N': current->type = element_t::ACCOUNT_FULLNAME; break;
case 't': current->type = element_t::VALUE; break;
case 'T': current->type = element_t::TOTAL; break;
case '_': current->type = element_t::SPACER; break;
}
} else {
str += *p;
}
}
if (! str.empty()) {
if (! result) {
current = result = new element_t;
} else {
current->next = new element_t;
current = current->next;
}
current->type = element_t::STRING;
current->chars = str;
}
return result;
}
void format_t::format_elements(std::ostream& out, const item_t * item,
const item_t * displayed_parent) const
{
std::string result;
for (const element_t * elem = elements;
elem;
elem = elem->next) {
if (elem->align_left)
out << std::left;
else
out << std::right;
if (elem->min_width > 0)
out.width(elem->min_width);
switch (elem->type) {
case element_t::STRING:
out << elem->chars;;
break;
case element_t::VALUE_EXPR: {
balance_t value = elem->val_expr->compute(item);
value.write(out, elem->min_width,
elem->max_width > 0 ? elem->max_width : elem->min_width);
break;
}
case element_t::DATE_STRING:
if (item->date != -1) {
char buf[256];
std::strftime(buf, 255, elem->chars.c_str(), std::gmtime(&item->date));
out << (elem->max_width == 0 ? buf : truncated(buf, elem->max_width));
} else {
out << " ";
}
break;
case element_t::PAYEE:
out << (elem->max_width == 0 ?
item->payee : truncated(item->payee, elem->max_width));
break;
case element_t::ACCOUNT_NAME:
if (item->account) {
std::string name = maximal_account_name(item, displayed_parent);
out << (elem->max_width == 0 ? name : truncated(name, elem->max_width));
} else {
out << " ";
}
break;
case element_t::ACCOUNT_FULLNAME:
if (item->account)
out << (elem->max_width == 0 ?
item->account->fullname() :
truncated(item->account->fullname(), elem->max_width));
else
out << " ";
break;
case element_t::VALUE: {
balance_t value = compute_value(item);
value.write(out, elem->min_width,
elem->max_width > 0 ? elem->max_width : elem->min_width);
break;
}
case element_t::TOTAL: {
balance_t value = compute_total(item);
value.write(out, elem->min_width,
elem->max_width > 0 ? elem->max_width : elem->min_width);
break;
}
case element_t::SPACER: {
int depth = 0;
for (const item_t * i = item; i->parent; i = i->parent)
depth++;
for (const item_t * i = item->parent;
i && i->account && i != displayed_parent;
i = i->parent)
depth--;
while (--depth >= 0) {
if (elem->min_width > 0 || elem->max_width > 0)
out.width(elem->min_width > elem->max_width ?
elem->min_width : elem->max_width);
out << " ";
}
break;
}
default:
assert(0);
break;
}
}
}
} // namespace ledger
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