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CGrammar: Improve translation of comma operator; remove redundant $arg{context}s

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Pragmatic Software 2014-06-26 07:35:11 +00:00
parent 682e6d2af3
commit 26e8f1552c
2 changed files with 28 additions and 20 deletions
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4
PBot/VERSION.pm
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@ -13,8 +13,8 @@ use warnings;
# These are set automatically by the build/commit script
use constant {
BUILD_NAME => "PBot",
BUILD_REVISION => 679,
BUILD_DATE => "2014-06-25",
BUILD_REVISION => 680,
BUILD_DATE => "2014-06-26",
};
1;

42
modules/c2english/CGrammar.pm
View File

@ -282,7 +282,7 @@ for_expression:
expression[context => 'for conditional']
for_increment:
expression[context => 'statement']
expression[context => 'for increment statement']
selection_statement:
'if' <commit> '(' expression[context => 'if conditional'] ')' statement[context => 'if statement']
@ -361,14 +361,20 @@ labeled_statement:
{ $return = "In the default case, ^L$item{statement}"; }
expression:
<leftop: assignment_expression[context => $arg{context}] ',' assignment_expression[context => $arg{context}]>
<leftop: assignment_expression ',' assignment_expression>
{
$return = join(" and then discard the result and evaluate ^L",@{$item[-1]});
if($arg{context} eq 'for increment statement') {
$return = join(', then ', @{$item[-1]});
} else {
my $that = $arg{context} =~ /conditional/ ? ' that' : '';
$return .= "Evaluate$that " if @{$item[-1]} > 1;
$return .= join(" and then discard the result and then evaluate$that ^L", @{$item[-1]});
}
}
assignment_expression:
unary_expression[context => 'assignment expression']
assignment_operator[context => $arg{context}]
assignment_operator
assignment_expression[context => 'assignment expression']
{
my $assignment_expression = $item{assignment_expression};
@ -382,10 +388,10 @@ assignment_expression:
$return = "$item{unary_expression} $assignment_operator $assignment_expression";
}
}
| conditional_expression[context => $arg{context}]
| conditional_expression
conditional_expression:
logical_OR_AND_expression[context => $arg{context}] conditional_ternary_expression
logical_OR_AND_expression conditional_ternary_expression
{
if($item{conditional_ternary_expression}) {
my $op1 = $item{conditional_ternary_expression}->[0];
@ -519,7 +525,7 @@ constant_expression:
logical_OR_AND_expression:
<leftop:
rel_add_mul_shift_expression[context => $arg{context}]
rel_add_mul_shift_expression
log_OR_AND_bit_or_and_eq
rel_add_mul_shift_expression[context => 'logical_OR_AND_expression']>
{
@ -578,7 +584,7 @@ closure:
cast_expression:
'(' type_name ')' cast_expression[context => 'recast']
{ $return = "$item{cast_expression} type-casted as $item{type_name}"; }
| unary_expression[context => $arg{context}]
| unary_expression
{ $return = $item{unary_expression}; }
declaration_list:
@ -792,7 +798,7 @@ initializer:
}
}
| '{' comment(?) initializer_list (',' )(?) '}'
{ $return = 'the set ' . $item{'initializer_list'}; }
{ $return = 'the set { ' . $item{'initializer_list'} . ' }'; }
initializer_list:
<leftop: initializer ',' initializer >
@ -810,7 +816,7 @@ initializer_list:
}
unary_expression:
postfix_expression[context => $arg{context}]
postfix_expression
{ $return = $item{postfix_expression}; }
| '++' unary_expression
{
@ -828,7 +834,7 @@ unary_expression:
$return = "pre-decremented $item{unary_expression}";
}
}
| unary_operator cast_expression[context => $arg{context}]
| unary_operator cast_expression
{
if(ref $item{unary_operator} eq 'ARRAY') {
$return = $item{unary_operator}->[0] . $item{cast_expression} . $item{unary_operator}->[1];
@ -959,7 +965,7 @@ postfix_productions:
{
my $increment = join('',@{$item[-1]});
if ($increment) {
if($arg{context} eq 'struct access') {
if($arg{context} eq 'struct access' or $arg{context} eq 'for increment statement') {
$return = ['increment', 'by one'];
} else {
$return = "post-incremented $arg{primary_expression}";
@ -970,7 +976,7 @@ postfix_productions:
{
my $increment = join('',@{$item[-1]});
if ($increment) {
if($arg{context} eq 'struct access') {
if($arg{context} eq 'struct access' or $arg{context} eq 'for increment statement') {
$return = ['decrement', 'by one'];
} else {
$return = "post-decremented $arg{primary_expression}";
@ -986,11 +992,13 @@ postfix_productions:
| {""}
postfix_expression:
primary_expression[context => $arg{context}] postfix_productions[primary_expression => $item[1], context => $arg{context}]
primary_expression postfix_productions[primary_expression => $item[1], context => $arg{context}]
{
my $postfix_productions = $item{'postfix_productions'};
if(length $postfix_productions) {
if(ref $postfix_productions eq 'ARRAY') {
$return = "$postfix_productions->[0] $item{primary_expression} $postfix_productions->[1]";
} elsif(length $postfix_productions) {
$return = $postfix_productions;
} elsif(length $item{primary_expression}) {
$return = $item{primary_expression};
@ -1043,10 +1051,10 @@ primary_expression:
if($arg{context} eq 'statement') {
$return = "Evaluate the expression ";
} else {
$return = "The expression ";
$return = "The result of the expression ";
}
$return .= '(' x $repeats;
$return .= $expression;
$return .= "^L$expression";
}
| constant
| string