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c2english: minor clean-ups

This commit is contained in:
Pragmatic Software 2021-08-15 11:18:28 -07:00
parent 1b13123474
commit 8115169729
2 changed files with 247 additions and 263 deletions

View File

@ -64,78 +64,77 @@ undefinition:
'undef' identifier <skip: '[ \t]*'> "\n"
{
@macros = grep { $_ ne $item{identifier} } @macros;
$return = "\nAnnul the definition of $item{identifier}.\n";
"\nAnnul the definition of $item{identifier}.\n"
}
inclusion:
'include' '<' filename '>' <skip: '[ \t]*'> "\n"
{ $return = "\nInclude the header $item{filename}.\n"; }
{ "\nInclude the header $item{filename}.\n" }
| 'include' '"' filename '"' <skip: '[ \t]*'> "\n"
{ $return = "\nInclude the source file $item{filename}.\n"; }
{ "\nInclude the source file $item{filename}.\n" }
| 'include' token
{ $return = "\nImport code noted by the token $item{token}.\n"; }
{ "\nImport code noted by the token $item{token}.\n" }
filename:
/[_\.\-\w\/]+/
line:
'line' constant ('"' filename '"'
{ $return = "and filename $item{filename}"; }
{ "and filename $item{filename}" }
)(?) <skip: '[ \t]*'> "\n"
{ $return = "\nThis is line number $item{constant} " . join('', @{$item[-3]}) . ".\n"; }
{ "\nThis is line number $item{constant} " . join('', @{$item[-3]}) . ".\n" }
error:
'error' token_sequence(?) <skip: '[ \t]*'> "\n"
{ $return = "Stop compilation with error \"" . join('', @{$item{'token_sequence(?)'}}) . "\".\n"; }
{ "Stop compilation with error \"" . join('', @{$item{'token_sequence(?)'}}) . "\".\n" }
pragma:
'pragma' token_sequence(?) <skip: '[ \t]*'> "\n"
{
my $pragma = join('',@{$item{'token_sequence(?)'}});
if ($pragma) { $pragma = ' "$pragma"'; }
$return = "Process a compiler-dependent pragma$pragma.\n";
"Process a compiler-dependent pragma$pragma.\n"
}
preproc_conditional:
if_line[matchrule => $arg{matchrule}]
{ $rule_name = $arg{matchrule}; }
<matchrule: $rule_name>(s?)
{ $return = $item{if_line} . join('',@{$item[-1]}); }
{ $item{if_line} . join('',@{$item[-1]}) }
(elif_parts[matchrule => $rule_name])(?)
(else_parts[matchrule => $rule_name])(?)
{ $return .= join('',@{$item[-2]}) . join('',@{$item[-1]}); }
{ join('',@{$item[-2]}) . join('',@{$item[-1]}) }
'#' 'endif'
{ $return .= "End preprocessor conditional.\n"; }
{ "End preprocessor conditional.\n" }
if_line:
'ifdef' identifier <skip: '[ \t]*'> "\n"
{ $return .= "If the macro $item{identifier} is defined, then ^L"; }
{ "If the macro $item{identifier} is defined, then ^L" }
| 'ifndef' identifier <skip: '[ \t]*'> "\n"
{ $return .= "If the macro $item{identifier} is not defined, then ^L"; }
{ "If the macro $item{identifier} is not defined, then ^L" }
| 'if' constant_expression <skip: '[ \t]*'> "\n"
{ $return .= "If the preprocessor condition^L $item{constant_expression} is true, then ^L"; }
{ "If the preprocessor condition^L $item{constant_expression} is true, then ^L" }
elif_parts:
('#' 'elif' constant_expression
{ $return .= "Otherwise, if the preprocessor condition $item{constant_expression} is true, then ^L"; }
{ "Otherwise, if the preprocessor condition $item{constant_expression} is true, then ^L" }
(<matchrule: $rule_name> )[matchrule => $arg{matchrule}](s?)
{ $return .= join('',@{$item[-1]}); }
{ join('',@{$item[-1]}) }
)(s)
{ $return = join('', @{$item[-1]}); }
{ join('', @{$item[-1]}) }
else_parts:
'#' 'else'
{ $rule_name = $arg{matchrule}; }
(<matchrule: $rule_name>)[matchrule => $arg{matchrule}](s?)
{ $return = "Otherwise, ^L" . join('',@{$item[-1]}); }
{ "Otherwise, ^L" . join('',@{$item[-1]}) }
token_sequence:
token(s)
{ $return = join(' ', @{$item[1]}); }
{ join(' ', @{$item[1]}) }
token:
<skip: '[ \t]*'> /\S+/
{ $return = $item[-1]; }
external_declaration:
declaration[context => 'external declaration']
@ -262,7 +261,7 @@ statement_list:
if ($preproc) { $return = $preproc . $return; }
}
statement_list(?)
{ $return .= join('',@{$item{'statement_list(?)'}}); }
{ join('',@{$item{'statement_list(?)'}}) }
statement:
jump_statement
@ -367,13 +366,11 @@ selection_statement:
$return .= "^L$item{statement}";
}
('else' statement[context => "$arg{context}|else block"]
{ $return = "Otherwise, ^L$item{statement}"; }
{ "Otherwise, ^L$item{statement}" }
)(?)
{ $return .= join('',@{$item[-1]}); }
| 'switch' '(' expression[context => 'switch conditional'] ')' statement[context => "$arg{context}|switch"]
{
$return = "When given the expression ^L$item{expression}, ^L$item{statement}";
}
{ "When given the expression ^L$item{expression}, ^L$item{statement}" }
jump_statement:
'break' ';'
@ -388,7 +385,7 @@ jump_statement:
}
}
| 'continue' ';'
{ $return = "Return to the top of the current loop.\n"; }
{ "Return to the top of the current loop.\n" }
| 'return' <commit> expression[context => "$arg{context}|return expression"](?) ';'
{
my $expression = join('', @{$item{'expression(?)'}});
@ -425,9 +422,9 @@ expression_statement:
labeled_statement:
identifier ':' statement[context => 'label'] (';')(?)
{ $return = "Let there be a label $item{identifier}.\n$item{statement}"; }
{ "Let there be a label $item{identifier}.\n$item{statement}" }
| ('case' constant_expression
{ $return = $item{constant_expression}; }
{ $item{constant_expression} }
':')(s)
{
my @items = @{$item[1]};
@ -450,7 +447,7 @@ labeled_statement:
$return = "If it has the value $item[-2], ^L$statements$last";
}
| 'default' ':' statement
{ $return = "In the default case, ^L$item{statement}"; }
{ "In the default case, ^L$item{statement}" }
expression:
<leftop: assignment_expression ',' assignment_expression>
@ -507,118 +504,118 @@ conditional_expression:
conditional_ternary_expression:
'?' expression ':' conditional_expression
{ $return = [$item{expression}, $item{conditional_expression}]; }
{ [$item{expression}, $item{conditional_expression}] }
| {""}
assignment_operator:
'='
{
if ($arg{context} =~ /for init/) {
$return = ['assigning to^L', 'the value^L' ];
['assigning to^L', 'the value^L' ]
} elsif ($arg{context} =~ /statement$/) {
$return = ['Assign to^L', 'the value^L' ];
['Assign to^L', 'the value^L' ]
} else {
$return = 'which is assigned to be^L';
'which is assigned to be^L'
}
}
| '+='
{
if ($arg{context} =~ /for init/) {
$return = ['incrementing^L','by^L'];
['incrementing^L','by^L']
} elsif ($arg{context} =~ /statement$/) {
$return = ['Increment^L','by^L'];
['Increment^L','by^L']
} else {
$return = 'which is incremented by^L';
'which is incremented by^L'
}
}
| '-='
{
if ($arg{context} =~ /for init/) {
$return = ['decrementing^L' , 'by^L'];
['decrementing^L' , 'by^L']
} elsif ($arg{context} =~ /statement$/) {
$return = ['Decrement^L', 'by^L'];
['Decrement^L', 'by^L']
} else {
$return = 'which is decremented by^L';
'which is decremented by^L'
}
}
| '*='
{
if ($arg{context} =~ /for init/) {
$return = ['multiplying^L' , 'by^L'];
['multiplying^L' , 'by^L']
} elsif ($arg{context} =~ /statement$/) {
$return = ['Multiply^L' , 'by^L'];
['Multiply^L' , 'by^L']
} else {
$return = 'which is multiplied by^L';
'which is multiplied by^L'
}
}
| '/='
{
if ($arg{context} =~ /for init/) {
$return = ['dividing^L' , 'by^L' ];
['dividing^L' , 'by^L' ]
} elsif ($arg{context} =~ /statement$/) {
$return = ['Divide^L' , 'by^L' ];
['Divide^L' , 'by^L' ]
} else {
$return = 'which is divided by^L';
'which is divided by^L'
}
}
| '%='
{
if ($arg{context} =~ /for init/) {
$return = ['reducing^L', 'to modulo ^L'] ;
['reducing^L', 'to modulo ^L']
} elsif ($arg{context} =~ /statement$/) {
$return = ['Reduce^L', 'to modulo ^L'] ;
['Reduce^L', 'to modulo ^L']
} else {
$return = 'which is reduced to modulo^L';
'which is reduced to modulo^L'
}
}
| '<<='
{
if ($arg{context} =~ /for init/) {
$return = ['bit-shifting^L', 'left by^L'];
['bit-shifting^L', 'left by^L']
} elsif ($arg{context} =~ /statement$/) {
$return = ['Bit-shift^L', 'left by^L'];
['Bit-shift^L', 'left by^L']
} else {
$return = 'which is bit-shifted left by^L';
'which is bit-shifted left by^L'
}
}
| '>>='
{
if ($arg{context} =~ /for init/) {
$return = ['bit-shifting^L', 'right by^L'];
['bit-shifting^L', 'right by^L']
} elsif ($arg{context} =~ /statement$/) {
$return = ['Bit-shift^L', 'right by^L'];
['Bit-shift^L', 'right by^L']
} else {
$return = 'which is bit-shifted right by^L';
'which is bit-shifted right by^L'
}
}
| '&='
{
if ($arg{context} =~ /for init/) {
$return = ['bitwise-ANDing^L', 'by^L' ];
['bitwise-ANDing^L', 'by^L' ]
} elsif ($arg{context} =~ /statement$/) {
$return = ['Bitwise-AND^L', 'by^L' ];
['Bitwise-AND^L', 'by^L' ]
} else {
$return = 'which is bitwise-ANDed by^L';
'which is bitwise-ANDed by^L'
}
}
| '^='
{
if ($arg{context} =~ /for init/) {
$return = ['exclusive-ORing^L','by^L'];
['exclusive-ORing^L','by^L']
} elsif ($arg{context} =~ /statement$/) {
$return = ['Exclusive-OR^L','by^L'];
['Exclusive-OR^L','by^L']
} else {
$return = 'which is exclusive-ORed by^L';
'which is exclusive-ORed by^L'
}
}
| '|='
{
if ($arg{context} =~ /for init/) {
$return = ['bitwise-ORing^L', 'by^L'];
['bitwise-ORing^L', 'by^L']
} elsif ($arg{context} =~ /statement$/) {
$return = ['Bitwise-OR^L', 'by^L'];
['Bitwise-OR^L', 'by^L']
} else {
$return = 'which is bitwise-ORed by^L';
'which is bitwise-ORed by^L'
}
}
@ -645,58 +642,58 @@ logical_OR_AND_expression:
}
log_OR_AND_bit_or_and_eq:
'||' { $return = ' or ^L'; }
| '&&' { $return = ' and ^L'; }
| '|' { $return = ' bitwise-ORed by ^L'; }
| '&' { $return = ' bitwise-ANDed by ^L'; }
| '^' { $return = ' bitwise-XORed by ^L';}
| '==' { $return = ' is equal to ^L'; }
| '!=' { $return = ' is not equal to ^L'; }
'||' { ' or ^L' }
| '&&' { ' and ^L' }
| '|' { ' bitwise-ORed by ^L' }
| '&' { ' bitwise-ANDed by ^L' }
| '^' { ' bitwise-XORed by ^L'}
| '==' { ' is equal to ^L' }
| '!=' { ' is not equal to ^L' }
rel_mul_add_ex_op:
'+' { $return = ' plus ^L'; }
| '-' { $return = ' minus ^L'; }
| '*' { $return = ' times ^L'; }
| '/' { $return = ' divided by ^L'; }
| '%' { $return = ' modulo ^L'; }
| '<<' { $return = ' shifted left by ^L'; }
| '>>' { $return = ' shifted right by ^L'; }
| '>=' { $return = ' is greater than or equal to ^L'; }
| "<=" { $return = ' is less than or equal to ^L'; }
| '>' { $return = ' is greater than ^L'; }
| '<' { $return = ' is less than ^L'; }
'+' { ' plus ^L' }
| '-' { ' minus ^L' }
| '*' { ' times ^L' }
| '/' { ' divided by ^L' }
| '%' { ' modulo ^L' }
| '<<' { ' shifted left by ^L' }
| '>>' { ' shifted right by ^L' }
| '>=' { ' is greater than or equal to ^L' }
| "<=" { ' is less than or equal to ^L' }
| '>' { ' is greater than ^L' }
| '<' { ' is less than ^L' }
unary_operator:
'&' { $return = 'the address of ^L'; }
| '*' { $return = 'the dereference of ^L'; }
| '+' { $return = ''; }
| '-' ...identifier { $return = 'negative ^L'; }
| '-' { $return = 'minus ^L'; }
| '~' { $return = "the one's complement of ^L"; }
| '!' '!' { $return = 'the normalized boolean value of ^L'; }
'&' { 'the address of ^L' }
| '*' { 'the dereference of ^L' }
| '+' { '' }
| '-' ...identifier { 'negative ^L' }
| '-' { 'minus ^L' }
| '~' { "the one's complement of ^L" }
| '!' '!' { 'the normalized boolean value of ^L' }
| '!'
{
if ($arg{context} =~ /conditional/) {
$return = ['', ' is false'];
['', ' is false']
} else {
$return = 'the logical negation of ^L';
'the logical negation of ^L'
}
}
rel_add_mul_shift_expression:
cast_expression ...';'
{ $return = $item{cast_expression}; }
{ $item{cast_expression} }
| <leftop: cast_expression rel_mul_add_ex_op cast_expression>
{ $return = join('', @{$item[1]}); }
{ join('', @{$item[1]}) }
closure:
',' | ';' | ')'
cast_expression:
'(' type_name ')' cast_expression[context => 'recast']
{ $return = "$item{cast_expression} converted to $item{type_name}"; }
{ "$item{cast_expression} converted to $item{type_name}" }
| unary_expression
{ $return = $item{unary_expression}; }
{ $item{unary_expression} }
Static_assert:
'_Static_assert'
@ -706,12 +703,12 @@ static_assert_declaration:
Static_assert '(' constant_expression[context => 'static assert'] ',' string ')' ';'
{
my $expression = ::istrue $item{constant_expression};
$return = "Halt compilation and produce the diagnostic $item{string} unless $expression.\n";
"Halt compilation and produce the diagnostic $item{string} unless $expression.\n"
}
declaration_list:
preproc[context => 'statement'](?) declaration(s)
{ $return = join('', @{$item{'preproc(?)'}}) . join('', @{$item{'declaration(s)'}}); }
{ join('', @{$item{'preproc(?)'}}) . join('', @{$item{'declaration(s)'}}) }
declaration:
declaration_specifiers init_declarator_list(?) ';'
@ -904,9 +901,7 @@ init_declarator_list:
init_declarator:
declarator[context => "$arg{context}|init_declarator"]
{
$return = $item{declarator};
}
{ $return = $item{declarator} }
('=' initializer)(?)
{
my $init = join('',@{$item[-1]});
@ -918,7 +913,7 @@ init_declarator:
initializer:
designation initializer
{ $return = "$item[1] $item[2]"; }
{ "$item[1] $item[2]" }
| comment(?) assignment_expression[context => "$arg{context}|initializer expression"] comment(?)
{
$return = $item[2];
@ -932,15 +927,15 @@ initializer:
}
}
| '{' comment(?) initializer_list (',' )(?) '}'
{ $return = '{' . $item{'initializer_list'} . '}'; }
{ '{' . $item{'initializer_list'} . '}' }
initializer_list:
<leftop: initializer ',' initializer >
{ $return = join(', ', @{$item[1]}); }
{ join(', ', @{$item[1]}) }
designation:
designator_list '='
{ $return = $item{designator_list}; }
{ $item{designator_list} }
designator_list:
designator(s)
@ -977,11 +972,10 @@ designator:
$return = $expression;
}
| '.' identifier
{ $return = "the member $item{identifier}"; }
{ "the member $item{identifier}" }
unary_expression:
postfix_expression
{ $return = $item{postfix_expression}; }
| '++' unary_expression
{
if ($arg{context} =~ /for init/) {
@ -1047,11 +1041,9 @@ unary_expression:
}
}
| Alignof '(' type_name ')'
{ $return = "the alignment of the type $item{type_name}"; }
{ "the alignment of the type $item{type_name}" }
| 'offsetof' '(' type_name[context => 'offsetof'] ',' identifier ')'
{
$return = "the offset, in bytes, of member $item{identifier} from the beginning of $item{type_name}";
}
{ "the offset, in bytes, of member $item{identifier} from the beginning of $item{type_name}" }
Alignof:
'_Alignof'
@ -1311,7 +1303,7 @@ primary_expression:
generic_selection:
'_Generic' '(' assignment_expression ',' generic_assoc_list ')'
{ $return = "a generic-selection on $item{assignment_expression} yielding $item{generic_assoc_list}"; }
{ "a generic-selection on $item{assignment_expression} yielding $item{generic_assoc_list}" }
generic_assoc_list:
<leftop: generic_association ',' generic_association>
@ -1326,9 +1318,9 @@ generic_assoc_list:
generic_association:
type_name ':' assignment_expression
{ $return = "$item{assignment_expression} in the case that it has type $item{type_name}"; }
{ "$item{assignment_expression} in the case that it has type $item{type_name}" }
| 'default' ':' assignment_expression
{ $return = "$item{assignment_expression} in the default case"; }
{ "$item{assignment_expression} in the default case" }
Alignas:
'_Alignas'
@ -1336,13 +1328,11 @@ Alignas:
alignment_specifier:
Alignas '(' type_name ')'
{
$return = "with alignment of the type $item{type_name}";
}
{ "with alignment of the type $item{type_name}" }
| Alignas '(' constant_expression ')'
{
my $plural = $item{constant_expression} != 1 ? 's' : '';
$return = "with alignment of $item{constant_expression} byte$plural between objects";
"with alignment of $item{constant_expression} byte$plural between objects"
}
declarator:
@ -1358,14 +1348,14 @@ declarator:
| pointer direct_declarator(s)
{
push @{$item{'direct_declarator(s)'}}, $item{pointer};
$return = $item{'direct_declarator(s)'};
$item{'direct_declarator(s)'}
}
direct_declarator:
identifier ':' constant
{
my $bits = $item{constant} == 1 ? "$item{constant} bit" : "$item{constant} bits";
$return = [$item{identifier}, "bit-field of $bits"];
[$item{identifier}, "bit-field of $bits"]
}
| identifier[context => 'direct_declarator'] array_declarator(s?)
{
@ -1378,14 +1368,14 @@ direct_declarator:
| '(' declarator ')' array_declarator(s)
{
push @{$item{declarator}}, join(' ', @{$item{'array_declarator(s)'}});
$return = $item{declarator};
$item{declarator}
}
| '(' parameter_type_list ')'
{ $return = "function taking $item{parameter_type_list} and returning"; }
{ "function taking $item{parameter_type_list} and returning" }
| '(' declarator array_declarator(s) ')'
{ $return = $item{'declarator'} . join(' ', @{$item{'array_declarator(s)'}}) }
{ $item{'declarator'} . join(' ', @{$item{'array_declarator(s)'}}) }
| '(' declarator ')'
{ $return = $item{declarator}; }
{ $item{declarator} }
array_qualifiers:
type_qualifier_list array_qualifiers(?)
@ -1498,13 +1488,13 @@ parameter_list:
parameter_declaration:
declaration_specifiers declarator
{ $return = [$item{declaration_specifiers}, $item{declarator}]; }
{ [$item{declaration_specifiers}, $item{declarator}] }
| '...'
{ $return = "variadic arguments"; }
{ "variadic arguments" }
| declaration_specifiers abstract_declarator(?)
{ $return = [$item{declaration_specifiers}, $item{'abstract_declarator(?)'}]; }
{ [$item{declaration_specifiers}, $item{'abstract_declarator(?)'}] }
| ''
{ $return = "unspecified arguments"; }
{ "unspecified arguments" }
abstract_declarator:
pointer(?) direct_abstract_declarator(s)
@ -1517,11 +1507,11 @@ abstract_declarator:
direct_abstract_declarator:
'(' abstract_declarator ')'
{ $return = $item{abstract_declarator}; }
{ $item{abstract_declarator} }
| '[' ']'
{ $return = 'array of unspecified length of'; }
{ 'array of unspecified length of' }
| '[' '*' ']'
{ $return = 'array of variable length of unspecified size of'; }
{ 'array of variable length of unspecified size of' }
| '[' array_qualifiers(?) assignment_expression(?) ']'
{
my $size;
@ -1557,9 +1547,9 @@ direct_abstract_declarator:
| DAD '[' ']'
| DAD '[' array_qualifiers(?) assignment_expression(?) ']'
| '(' ')'
{ $return = 'function taking unspecified arguments and returning'; }
{ 'function taking unspecified arguments and returning' }
| '(' parameter_type_list ')'
{ $return = "function taking $item{parameter_type_list} and returning"; }
{ "function taking $item{parameter_type_list} and returning" }
| DAD '(' ')'
| DAD '(' parameter_type_list ')'
@ -1576,7 +1566,7 @@ identifier:
if (not grep { $_ eq $item{identifier_word} } @identifiers) {
push @identifiers, $item{identifier_word};
}
$return = $item{identifier_word};
$item{identifier_word}
}
pointer:
@ -1594,19 +1584,19 @@ pointer:
type_qualifier_list:
type_qualifier(s)
{ $return = join(' ', @{$item{'type_qualifier(s)'}}); }
{ join(' ', @{$item{'type_qualifier(s)'}}) }
function_specifier:
'inline'
| '_Noreturn'
| 'noreturn'
{ $return = '_Noreturn'; }
{ '_Noreturn' }
declaration_specifiers:
comment[context => 'declaration_specifiers'] declaration_specifiers(s)
{ $return = "$item{comment} " . join(' ', @{$item{'declaration_specifiers(s)'}}); }
{ "$item{comment} " . join(' ', @{$item{'declaration_specifiers(s)'}}) }
| type_specifier ...identifier
{ $return = $item{type_specifier}; }
{ $item{type_specifier} }
| storage_class_specifier declaration_specifiers(?)
{
my $decl_spec = join(' ', @{$item{'declaration_specifiers(?)'}});
@ -1652,40 +1642,40 @@ declaration_specifiers:
storage_class_specifier:
'auto'
{ $return = "with automatic storage-duration"; }
{ 'with automatic storage-duration' }
| 'extern'
{
if ($arg{context} eq 'function definition') {
$return = "with external linkage";
'with external linkage'
} else {
$return = "with external linkage, possibly defined elsewhere";
'with external linkage, possibly defined elsewhere'
}
}
| 'static'
{
if ($arg{context} eq 'function definition') {
$return = "with internal linkage";
'with internal linkage'
} elsif ($arg{context} eq 'function definition statement') {
$return = "with life-time duration";
'with life-time duration'
} else {
$return = "with internal linkage and life-time duration";
'with internal linkage and life-time duration'
}
}
| 'register'
{ $return = "with a suggestion to be as fast as possible"; }
{ 'with a suggestion to be as fast as possible' }
| 'typedef'
{ $return = 'type definition of'; }
{ 'type definition of' }
type_qualifier:
'const'
| 'volatile'
| 'restrict'
| '_Atomic'
{ $return = 'atomic'; }
{ 'atomic' }
atomic_type_specifier:
'_Atomic' '(' type_name ')'
{ $return = "atomic $item{type_name}"; }
{ "atomic $item{type_name}" }
type_specifier:
<skip:''> /\s*/
@ -1715,7 +1705,7 @@ type_specifier:
| <skip:'[\s]*'> atomic_type_specifier | typedef_name
| 'double' | 'float' | 'char' | 'short' | 'int' | 'long'
) .../\W/
{ $return = $item[3]; }
{ $item[3] }
typedef_name:
identifier
@ -1764,7 +1754,7 @@ struct_declaration_list:
struct_declaration:
comment(s?) declaration[context => 'struct member'] comment(s?)
{ $return = join('', @{$item[1]}) . $item{declaration} . join('', @{$item[-1]}); }
{ join('', @{$item[1]}) . $item{declaration} . join('', @{$item[-1]}) }
type_name:
specifier_qualifier_list abstract_declarator(?)
@ -1788,9 +1778,9 @@ specifier_qualifier_list:
struct_or_union:
comment(?) ('struct'
{ $return = 'a structure'; }
{ 'a structure' }
| 'union'
{ $return = 'an union'; }
{ 'a union' }
) comment(?)
{
shift @item;
@ -1823,7 +1813,7 @@ enum_specifier:
}
| 'enum' identifier
{ $return = "an enumeration of type $item{identifier}"; }
{ "an enumeration of type $item{identifier}" }
enumerator_list:
<leftop:enumerator ',' enumerator>
@ -1931,7 +1921,7 @@ constant:
identifier_word:
/[a-z_\$][a-z0-9_]*/i
{ $return = "`$item[-1]`"; }
{ "`$item[1]`" }
string:
(/(u8|u|U|L)?(?:\"(?:\\\"|(?!\").)*\")/)(s)

View File

@ -6,128 +6,122 @@
use strict;
use warnings;
use lib ".";
use lib '.';
use Parse::RecDescent;
use Getopt::Std;
use Data::Dumper;
our ($opt_T, $opt_t, $opt_o, $opt_P);
getopts('TPto:');
if ($opt_T ) {
$::RD_TRACE = 1;
} else {
undef $::RD_TRACE ;
}
$::RD_HINT = 1;
$Parse::RecDescent::skip = '\s*';
my $parser;
if($opt_P or !eval { require PCGrammar }) {
precompile_grammar();
require PCGrammar;
}
$parser = PCGrammar->new() or die "Bad grammar!\n";
if ($opt_o) {
open(OUTFILE, ">>$opt_o");
*STDOUT = *OUTFILE{IO};
}
my $text = "";
foreach my $arg (@ARGV) {
print STDERR "Opening file $arg\n";
open(CFILE, "$arg") or die "Could not open $arg.\n";
local $/;
$text = <CFILE>;
close(CFILE);
print STDERR "parsing...\n";
# for debugging...
if ($opt_t) {
$::RD_TRACE = 1;
} else {
undef $::RD_TRACE;
}
my $result = $parser->startrule(\$text) or die "Bad text!\n$text\n";
$text =~ s/^\s+//g;
$text =~ s/\s+$//g;
if(length $text) {
print "Bad parse at: $text";
} else {
my $output = join('', flatten($result));
# beautification
my @quotes;
$output =~ s/(?:\"((?:\\\"|(?!\").)*)\")/push @quotes, $1; '"' . ('-' x length $1) . '"'/ge;
$output =~ s/\ban un/a un/g;
$output =~ s/\ban UTF/a UTF/g;
$output =~ s/the value the expression/the value of the expression/g;
$output =~ s/the value the member/the value of the member/g;
$output =~ s/the value the/the/g;
$output =~ s/of evaluate/of/g;
$output =~ s/the evaluate the/the/g;
$output =~ s/by evaluate the/by the/g;
$output =~ s/the a /the /g;
$output =~ s/Then if it has the value/If it has the value/g;
$output =~ s/result of the expression a generic-selection/result of a generic-selection/g;
$output =~ s/the result of the expression (an?) (16-bit character|32-bit character|wide character|UTF-8) string/$1 $2 string/gi;
$output =~ s/the function a generic-selection/the function resulting from a generic-selection/g;
$output =~ s/\.\s+Then exit switch block/ and then exit switch block/g;
$output =~ s/,\././g;
$output =~ s/of unspecified length //g;
while($output =~ s/const const/const/g){};
foreach my $quote (@quotes) {
next unless $quote;
$output =~ s/"-+"/"$quote"/;
}
print $output;
}
}
sub precompile_grammar {
print STDERR "Precompiling grammar...\n";
open GRAMMAR, 'CGrammar.pm' or die "Could not open CGrammar.pm: $!";
local $/;
my $grammar = <GRAMMAR>;
close GRAMMAR;
Parse::RecDescent->Precompile($grammar, "PCGrammar") or die "Could not precompile: $!";
print STDERR "Precompiling grammar...\n";
open GRAMMAR, 'CGrammar.pm' or die "Could not open CGrammar.pm: $!";
local $/;
my $grammar = <GRAMMAR>;
close GRAMMAR;
Parse::RecDescent->Precompile($grammar, "PCGrammar") or die "Could not precompile: $!";
}
sub flatten { map { ref eq 'ARRAY' ? flatten(@$_) : $_ } @_ }
sub flatten {
map { ref eq 'ARRAY' ? flatten(@$_) : $_ } @_
}
sub isfalse {
return istrue($_[0], 'zero');
istrue($_[0], 'zero')
}
sub istrue {
my @parts = split /(?<!,) and /, $_[0];
my $truthy = defined $_[1] ? $_[1] : 'nonzero';
my ($result, $and) = ('', '');
foreach my $part (@parts) {
$result .= $and;
if($part !~ /(discard the result|result discarded|greater|less|equal|false$)/) {
$result .= "$part is $truthy";
} else {
$result .= $part;
my @parts = split /(?<!,) and /, $_[0];
my $truthy = defined $_[1] ? $_[1] : 'nonzero';
my ($result, $and) = ('', '');
foreach my $part (@parts) {
$result .= $and;
if($part !~ /(discard the result|result discarded|greater|less|equal|false$)/) {
$result .= "$part is $truthy";
} else {
$result .= $part;
}
$and = ' and ';
}
$and = ' and ';
}
$result =~ s/is $truthy and the result discarded/is evaluated and the result discarded/g;
$result =~ s/is ((?:(?!evaluated).)+) and the result discarded/is evaluated to be $1 and the result discarded/g;
return $result;
$result =~ s/is $truthy and the result discarded/is evaluated and the result discarded/g;
$result =~ s/is ((?:(?!evaluated).)+) and the result discarded/is evaluated to be $1 and the result discarded/g;
return $result;
}
sub main {
my ($opt_T, $opt_t, $opt_o, $opt_P);
getopts('TPto:');
if ($opt_T ) {
$::RD_TRACE = 1;
}
$::RD_HINT = 1;
$Parse::RecDescent::skip = '\s*';
my $parser;
if ($opt_P or !eval { require PCGrammar }) {
precompile_grammar();
require PCGrammar;
}
$parser = PCGrammar->new or die "Bad grammar!\n";
if ($opt_o) {
open(OUTFILE, ">>$opt_o");
*STDOUT = *OUTFILE{IO};
}
my $text;
foreach my $arg (@ARGV) {
print STDERR "Opening file $arg\n";
open(CFILE, "$arg") or die "Could not open $arg.\n";
local $/;
$text = <CFILE>;
close(CFILE);
print STDERR "parsing...\n";
my $result = $parser->startrule(\$text) or die "Bad text!\n$text\n";
$text =~ s/^\s+|\s+$//g;
if(length $text) {
print "Bad parse at: $text";
} else {
my $output = join('', flatten($result));
# beautification
my @quotes;
$output =~ s/(?:\"((?:\\\"|(?!\").)*)\")/push @quotes, $1; '"' . ('-' x length $1) . '"'/ge;
$output =~ s/\ban un/a un/g;
$output =~ s/\ban UTF/a UTF/g;
$output =~ s/the value the expression/the value of the expression/g;
$output =~ s/the value the member/the value of the member/g;
$output =~ s/the value the/the/g;
$output =~ s/of evaluate/of/g;
$output =~ s/the evaluate the/the/g;
$output =~ s/by evaluate the/by the/g;
$output =~ s/the a /the /g;
$output =~ s/Then if it has the value/If it has the value/g;
$output =~ s/result of the expression a generic-selection/result of a generic-selection/g;
$output =~ s/the result of the expression (an?) (16-bit character|32-bit character|wide character|UTF-8) string/$1 $2 string/gi;
$output =~ s/the function a generic-selection/the function resulting from a generic-selection/g;
$output =~ s/\.\s+Then exit switch block/ and then exit switch block/g;
$output =~ s/,\././g;
$output =~ s/of unspecified length //g;
while($output =~ s/const const/const/g){};
foreach my $quote (@quotes) {
next unless $quote;
$output =~ s/"-+"/"$quote"/;
}
print $output;
}
}
}
main;