Improve error handling when parsing year directives

A literal Y directive or ‘year’ directive with an empty or invalid 
argument, e.g. ‘2o14’ (that is a small letter ‘oh’ instead of a zero)
would fail with the following rather unhelpful error message:
Error: bad lexical cast: source type value could not be interpreted as target
This commit is contained in:
Alexis Hildebrandt 2014-12-28 13:42:02 +01:00
parent e716980c7d
commit 0462c887ae

View file

@ -419,7 +419,9 @@ void instance_t::read_next_directive(bool& error_flag)
price_xact_directive(line);
break;
case 'Y': // set the current year
apply_year_directive(line + 1);
if (std::strlen(line+1) == 0)
throw_(parse_error, _f("Directive '%1%' requires an argument") % line[0]);
apply_year_directive(line+1);
break;
}
}
@ -863,14 +865,17 @@ void instance_t::apply_rate_directive(char * line)
void instance_t::apply_year_directive(char * line)
{
try {
unsigned short year(lexical_cast<unsigned short>(skip_ws(line)));
apply_stack.push_front(application_t("year", epoch));
DEBUG("times.epoch", "Setting current year to " << year);
// This must be set to the last day of the year, otherwise partial
// dates like "11/01" will refer to last year's november, not the
// current year.
unsigned short year(lexical_cast<unsigned short>(skip_ws(line)));
DEBUG("times.epoch", "Setting current year to " << year);
epoch = datetime_t(date_t(year, 12, 31));
} catch(bad_lexical_cast &) {
throw_(parse_error, _f("Argument '%1%' not a valid year") % skip_ws(line));
}
}
void instance_t::end_apply_directive(char * kind)