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package TemplateInputReader;
# ************************************************************
# Description : Reads the template input and stores the values
# Author : Chad Elliott
# Create Date : 5/16/2002
# $Id: TemplateInputReader.pm 2035 2011-10-06 15:05:21Z johnnyw $
# ************************************************************
# ************************************************************
# Pragmas
# ************************************************************
use strict;
use Parser;
use vars qw(@ISA);
@ISA = qw(Parser);
# ************************************************************
# Data Section
# ************************************************************
my $mpt = 'mpt';
# ************************************************************
# Subroutine Section
# ************************************************************
sub new {
my($class, $inc) = @_;
my $self = Parser::new($class, $inc);
## Set up the internal data members
$self->{'values'} = {};
$self->{'cindex'} = 0;
$self->{'current'} = [ $self->{'values'} ];
$self->{'realnames'} = {};
return $self;
}
sub parse_line {
my($self, $ih, $line) = @_;
my $status = 1;
my $errorString;
my $current = $self->{'current'};
if ($line eq '') {
}
elsif ($line =~ /^([-\w\s\(\)\.]+)\s*{$/) {
## Entering a new scope, we need to save the real name so that it can
## be accessed at a later time.
my $rname = $1;
$rname =~ s/\s+$//;
my $name = lc($rname);
$self->{'realnames'}->{$name} = $rname;
## Scopes are reentrant, so we only create a new map when we haven't
## got one.
if (!defined $$current[$self->{'cindex'}]->{$name}) {
$$current[$self->{'cindex'}]->{$name} = {};
}
## Keep track of the current scope
push(@$current, $$current[$self->{'cindex'}]->{$name});
$self->{'cindex'}++;
}
elsif ($line =~ /^}$/) {
## Maintain the scope and make sure there aren't any unmatched
## braces.
if ($self->{'cindex'} > 0) {
pop(@$current);
$self->{'cindex'}--;
}
else {
$status = 0;
$errorString = 'Unmatched curly brace';
}
}
elsif ($line =~ /^(\w+)\s*(\+=|=)\s*(.*)?/) {
## Save the name, operation type and value.
my $name = lc($1);
my $op = $2;
my $value = $3;
## Turn the value into an array
if (defined $value) {
$value = $self->create_array($value);
}
else {
$value = [];
}
## Store the value
if ($op eq '+=' && defined $$current[$self->{'cindex'}]->{$name}) {
push(@{$$current[$self->{'cindex'}]->{$name}}, @$value);
}
else {
$$current[$self->{'cindex'}]->{$name} = $value;
}
}
elsif ($line =~ /^conditional_include\s+"([\w\s\-\+\/\\\.]+)"$/) {
## Search for the include template file. If it does not exist, we
## don't complain. It's likely that these sort of files won't exist.
my $file = $self->search_include_path("$1.$mpt");
if (defined $file) {
## Process the file making sure to restore the line number seting
## when we get done.
my $ol = $self->get_line_number();
($status, $errorString) = $self->read_file($file);
$self->set_line_number($ol);
}
}
else {
$status = 0;
$errorString = "Unrecognized line: $line";
}
return $status, $errorString;
}
sub get_value {
## All template names are case-insensitive.
my($self, $tag) = @_;
return $self->{'values'}->{lc($tag)};
}
sub get_realname {
## Sometimes, we need to get back to the name retaining the case so we
## access the hash map containing them.
my($self, $tag) = @_;
return $self->{'realnames'}->{lc($tag)};
}
1;
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