您是否知道一个简单的脚本来计算NLOC（netto代码行）。脚本应该计算C代码行。它不应该只用括号计算空行或行。但它也不需要过于精确。
答案 0 :(得分：7)
我会使用 awk ＆amp; cpp （预处理器）＆amp; wc 。 awk删除所有大括号和空格，预处理器删除所有注释，wc计算行：
find . -name \*.cpp -o -name \*.h | xargs -n1 cpp -fpreprocessed -P |
awk '!/^[{[:space:]}]*$/' | wc -l
如果您想包含评论：
find . -name \*.cpp -o -name \*.h | xargs awk '!/^[{[:space:]}]*$/' | wc -l
答案 1 :(得分：2)
在网上看NLOC，我发现主要是“未注释的代码行”
您没有指定是否必须跳过评论...
因此，如果我坚持您当前的消息，Perl中的以下单行应该可以完成这项任务：
perl -pe "s/^\s*[{}]?\s*\n//" Dialog.java | wc -l
我可以扩展它以处理行注释：
perl -pe "s#^\s*[{}]?\s*\n|^\s*//.*\n##" Dialog.java | wc -l
或者
perl -pe "s#^\s*(?:[{}]?\s*|//.*)\n##" Dialog.java | wc -l
处理块注释稍微有些棘手（我不是Perl专家！）。
[编辑]得到它......第一部分可能会改进（更短）。试验很有趣。
perl -e "$x = join('', <>); $x =~ s#/\*.*?\*/##gs; print $x" Dialog.java | perl -pe "s#^\s*(?:[{}]?\s*|//.*)\n##" | wc -l
PS：我使用双引号，因为我在Windows上测试过......
答案 2 :(得分：1)
查看Visual Studio的DPack插件。它有任何解决方案/项目的统计报告。
答案 3 :(得分：1)
不是脚本，但您可以尝试使用此命令行开源工具：NLOC
答案 4 :(得分：1)
Source monitor是免费软件源分析软件。它是Windows应用程序，但也可以使用命令行中的参数运行。
它可以分析C ++，C，C＃，VB.NET，Java，Delphi，Visual Basic（VB6）或HTML。
答案 5 :(得分：1)
答案 6 :(得分：1)
如果评论仍然存在，标准的unix工具就足够了：
grep -x -v "[[:space:]}{]*" files.c | wc
答案 7 :(得分：1)
SLOCCOunt不是一个简单的脚本，并且比您需要的更多。但是，它是已经提到的Ohcount和NLOC的强大替代品。 ：）
答案 8 :(得分：1)
我通常只是这样做：
grep -vc '^$' (my files)
仅当空行真的为空（无空格）时才有效。对我来说足够了。
答案 9 :(得分：1)
Locmetrics效果很好。
答案 10 :(得分：1)
这是一个简单的Perl脚本eLOC.pl：
#!/usr/bin/perl -w
# eLOC - Effective Lines of Code Counter
# JFS (2005)
#
# $ perl eLOC.pl --help
#
use strict;
use warnings;
use sigtrap;
use diagnostics;
use warnings::register;
no warnings __PACKAGE__;
sub DEBUG { 0 }
use English qw( -no_match_vars ) ; # Avoids regex performance penalty
use Getopt::Long qw(:config gnu_getopt);
use File::DosGlob 'glob';
use Pod::Usage;
our $VERSION = '0.01';
# globals
use constant NOTFILENAME => undef;
my %counter = (
'PHYS' => 0,
'ELOC' => 0,
'PURE_COMMENT' => 0,
'BLANK' => 0,
'LLOC' => 0,
'INLINE_COMMENT'=> 0,
'LOC' => 0,
);
my %header = (
"eloc" => "eloc",
"lloc" => "lloc",
"loc" => "loc",
"comment" => "comment",
"blank" => "blank",
"newline" => "newline",
"logicline" => "lgcline",
);
my %total = %counter; # copy
my $c = \%counter; # see format below
my $h = \%header; # see top format below
my $inside_multiline_comment = 0;
my $filename = NOTFILENAME;
my $filecount = 0;
my $filename_header = "file name";
# process input args
my $version = '';
my $help = '';
my $man = '';
my $is_deterministic = '';
my $has_header = '';
print STDERR "Input args:'" if DEBUG;
print STDERR (join("|",@ARGV),"'\n") if DEBUG;
my %option = ('version' => \$version,
'help' => \$help,
'man' => \$man,
'deterministic' => \$is_deterministic,
'header' => \$has_header
);
GetOptions( \%option, 'version', 'help', 'man',
'eloc|e', # print the eLOC counts
'lloc|s', # print the lLOC counts (code statements)
'loc|l' , # print the LOC counts (eLOC + lines of a single brace or parenthesis)
'comment|c' , # print the comments counts (count lines which contains a comment)
'blank|b' , # print the blank counts
'newline|n' , # print the newline count
'logicline|g' , # print the logical line count (= LOC + Comment Lines + Blank Lines)
'deterministic', # print the LOC determination for every line in the source file
'header', # print header line
) or invalid_options("$0: invalid options\nTry `$0 --help' for more information.");
version() if $version;
pod2usage(-exitstatus => 0, -verbose => 1) if $help ;
pod2usage(-exitstatus => 0, -verbose => 2) if $man;
#
$has_header = 1 if $is_deterministic && $has_header eq '';
#format for print_loc_metric()
my ($format, $format_top) = make_format();
print STDERR "format:\n" if DEBUG > 10;
print STDERR $format if DEBUG > 10;
eval $format;
die $@ if $@; # $EVAL_ERROR
if(DEBUG>10) {
print STDERR ("format_top:\n", $format_top);
}
if( $has_header) {
eval $format_top;
die $@ if $@; # $EVAL_ERROR
}
# process files
print STDERR ("Input args after Getopts():\n",
join("|",@ARGV),"\n") if DEBUG > 10;
expand_wildcards();
@ARGV = '-' unless @ARGV;
foreach my $fn (@ARGV) {
$filename = $fn;
unless (open(IN, "<$filename")) {
warn "$0: Unable to read from '$filename': $!\n";
next;
}
print STDERR "Scanning $filename...\n" if DEBUG;
clear_counters();
generate_loc_metric();
$filecount++;
print_loc_metric();
close(IN)
or warn "$0: Could not close $filename: $!\n";
}
# print total
if($filecount > 1) {
$filename = "total";
$c = \%total;
print_loc_metric();
}
exit 0;
#-------------------------------------------------
sub wsglob {
my @list = glob;
@list ? @list : @_; #HACK: defence from emtpy list from glob()
}
sub expand_wildcards {
print STDERR ("Input args before expand_wildcards():\n",
join("|",@ARGV),"\n") if DEBUG;
{
@ARGV = map( /['*?']/o ? wsglob($_) : $_ , @ARGV);
}
print STDERR ("Input args after expand_wildcards():\n",
join("|",@ARGV),"\n") if DEBUG;
}
sub clear_counters {
for my $name ( keys %counter) {
$counter{$name} = 0;
}
}
sub make_format {
my $f = 'format STDOUT =' . "\n";
$f .= '# LOC, eLOC, lLOC, comment, blank, newline, logicline and filename' . "\n";
my $f_top = 'format STDOUT_TOP =' . "\n";
my $console_screen_width = (get_terminal_size())[0];
print STDERR '$console_screen_width=' . $console_screen_width ."\n" if DEBUG>10;
$console_screen_width = 100 if $console_screen_width < 0;
my $is_print_specifiers_set =
($option{"eloc"} or
$option{"lloc"} or
$option{"loc"} or
$option{"comment"} or
$option{"blank"} or
$option{"newline"} or
$option{"logicline"});
my %o = %option;
my $fc = 0;
if( $is_print_specifiers_set ) {
$fc++ if $o{"eloc"};
$fc++ if $o{"lloc"};
$fc++ if $o{"loc"};
$fc++ if $o{"comment"};
$fc++ if $o{"blank"};
$fc++ if $o{"newline"};
$fc++ if $o{"logicline"};
if( $fc == 0 ) { die "$0: assertion failed: field count is zero" }
}
else {
# default
$fc = 7;
$o{"loc"} = 1;
$o{"eloc"} = 1;
$o{"lloc"} = 1;
$o{"comment"} = 1;
$o{"blank"} = 1;
$o{"newline"} = 1;
$o{"logicline"} = 1;
}
if (DEBUG > 10) {
while( (my ($name, $value) = each %{o}) ) {
print STDERR "name=$name, value=$value\n";
}
}
# picture line
my $field_format = '@>>>>>> ';
my $field_width = length $field_format;
my $picture_line = $field_format x $fc;
# place for filename
$picture_line .= '^';
$picture_line .= '<' x ($console_screen_width - $field_width * $fc - 2);
$picture_line .= "\n";
$f .= $picture_line;
$f_top .= $picture_line;
# argument line
$f .= '$$c{"LOC"}, ' ,$f_top .= '$$h{"loc"}, ' if $o{"loc"};
$f .= '$$c{"ELOC"}, ' ,$f_top .= '$$h{"eloc"}, ' if $o{"eloc"};
$f .= '$$c{"LLOC"}, ' ,$f_top .= '$$h{"lloc"}, ' if $o{"lloc"};
$f .= '$$c{"comment"}, ' ,$f_top .= '$$h{"comment"}, ' if $o{"comment"};
$f .= '$$c{"BLANK"}, ' ,$f_top .= '$$h{"blank"}, ' if $o{"blank"};
$f .= '$$c{"PHYS"}, ' ,$f_top .= '$$h{"newline"}, ' if $o{"newline"};
$f .= '$$c{"logicline"}, ',$f_top .= '$$h{"logicline"}, ' if $o{"logicline"};
$f .= '$filename' . "\n";
$f_top .= '$filename_header' . "\n";
# 2nd argument line for long file names
$f .= '^';
$f .= '<' x ($console_screen_width-2);
$f .= '~~' . "\n"
.' $filename' . "\n";
$f .='.' . "\n";
$f_top .='.' . "\n";
return ($f, $f_top);
}
sub generate_loc_metric {
my $is_concatinated = 0;
LINE: while(<IN>)
{
chomp;
print if $is_deterministic && !$is_concatinated;
# handle multiline code statements
if ($is_concatinated = s/\\$//) {
warnings::warnif("$0: '\\'-ending line concantinated");
increment('PHYS');
print "\n" if $is_deterministic;
my $line = <IN>;
$_ .= $line;
chomp($line);
print $line if $is_deterministic;
redo unless eof(IN);
}
# blank lines, including inside comments, don't move to next line here
increment('BLANK') if( /^\s*$/ );
# check whether multiline comments finished
if( $inside_multiline_comment && m~\*/\s*(\S*)\s*$~ ) {
$inside_multiline_comment = 0;
# check the rest of the line if it contains non-whitespace characters
#debug $_ = $REDO_LINE . $1, redo LINE if($1);
warnings::warnif("$0: expression '$1' after '*/' discarded") if($1);
# else mark as pure comment
increment('PURE_COMMENT');
next LINE;
}
# inside multiline comments
increment('PURE_COMMENT'), next LINE if( $inside_multiline_comment );
# C++ style comment at the begining of line (except whitespaces)
increment('PURE_COMMENT'), next LINE if( m~^\s*//~ );
# C style comment at the begining of line (except whitespaces)
if ( m~^\s*/\*~ ) {
$inside_multiline_comment = 1 unless( m~\*/~ );
increment('PURE_COMMENT'), next LINE;
}
# inline comment, don't move to next line here
increment('INLINE_COMMENT') if ( is_inline_comment($_) );
# lLOC implicitly incremented inside is_inline_comment($)
#
increment('LOC') unless( /^\s*$/ );
# standalone braces or parenthesis
next LINE if( /^\s*(?:\{|\}|\(|\))+\s*$/ );
# eLOC is not comments, blanks or standalone braces or parenthesis
# therefore just increment eLOC counter here
increment('ELOC'), next LINE unless( /^\s*$/ );
}
continue {
increment('PHYS');
print " [$.]\n" if $is_deterministic; # $INPUT_LINE_NUMBER
}
}
sub print_loc_metric {
$$c{'comment'} = $$c{'PURE_COMMENT'} + $$c{'INLINE_COMMENT'};
# LOC + Comment Lines + Blank Lines
$$c{'logicline'} = $$c{'LOC'} + $$c{'comment'} + $$c{'BLANK'};
unless (defined $filename) {
die "print_loc_metric(): filename is not defined";
}
my $fn = $filename;
$filename = "", $filename_header = ""
unless($#ARGV);
print STDERR ("ARGV in print_loc_metric:" , join('|',@ARGV), "\n")
if DEBUG;
write STDOUT; # replace with printf
$filename = $fn;
}
sub increment {
my $loc_type = shift;
defined $loc_type
or die 'increment(\$): input argument is undefined';
$counter{$loc_type}++;
$total{$loc_type}++;
print "\t#". $loc_type ."#" if $is_deterministic;
}
sub is_inline_comment {
my $line = shift;
defined $line
or die 'is_inline_comment($): $line is not defined';
print "\n$line" if DEBUG > 10;
# here: line is not empty, not begining both C and C++ comments signs,
# not standalone '{}()', not inside multiline comment,
# ending '\' removed (joined line created if needed)
# Possible cases:
# - no C\C++ comment signs => is_inline_comment = 0
# - C++ comment (no C comment sign)
# * no quote characters => is_inline_comment = 1
# * at least one comment sign is not quoted => is_inline_comment = 1
# * all comment signs are quoted => is_inline_comment = 0
# - C comment (no C++ comment sign)
# * no quote characters => is_inline_comment = 1,
# ~ odd number of '/*' and '*/' => $inside_multiple_comment = 1
# ~ even number => $inside_multiple_comment = 0
# * etc...
# - ...
# algorithm: move along the line from left to right
# rule: quoted comments are not counted
# rule: quoted by distinct style quotes are not counted
# rule: commented quotes are not counted
# rule: commented distinct style comments are not counted
# rule: increment('LLOC') if not-quoted, not-commented
# semi-colon presents in the line except that two
# semi-colon in for() counted as one.
#
$_ = $line; #hack: $_ = $line inside sub
# state
my %s = (
'c' => 0, # c slash star - inside c style comments
'cpp' => 0, # c++ slash slash - inside C++ style comment
'qm' => 0, # quoted mark - inside quoted string
'qqm' => 0, # double quoted - inside double quoted string
);
my $has_comment = 0;
# find state
LOOP:
{
/\G\"/gc && do { # match double quote
unless( $s{'qm'} || $s{'c'} || $s{'cpp'} ) {
# toggle
$s{'qqm'} = $s{'qqm'} ? 0 : 1;
}
redo LOOP;
};
/\G\'/gc && do { # match single quote
unless( $s{'qqm'} || $s{'c'} || $s{'cpp'} ) {
# toggle
$s{'qm'} = $s{'qm'} ? 0 : 1;
}
redo LOOP;
};
m~\G//~gc && do { # match C++ comment sign
unless( $s{'qm'} || $s{'qqm'} || $s{'c'} ) {
# on
$has_comment = 1;
$s{'cpp'} = 1;
}
redo LOOP;
};
m~\G/\*~gc && do { # match begining C comment sign
unless( $s{'qm'} || $s{'qqm'} || $s{'cpp'} ) {
# on
$has_comment = 1;
$s{'c'} = $s{'c'} ? 1 : 1;
}
redo LOOP;
};
m~\G\*/~gc && do { # match ending C comment sign
unless( $s{'qm'} || $s{'qqm'} || $s{'cpp'} ) {
# off
if( $s{'c'} ) {
$s{'c'} = 0;
}
else {
die 'is_inline_comment($): unexpected c style ending comment sign'.
"\n'$line'";
}
}
redo LOOP;
};
/\Gfor\s*\(.*\;.*\;.*\)/gc && do { # match for loop
unless( $s{'qm'} || $s{'qqm'} || $s{'cpp'} || $s{'c'} ) {
# not-commented, not-quoted semi-colon
increment('LLOC');
}
redo LOOP;
};
/\G\;/gc && do { # match semi-colon
unless( $s{'qm'} || $s{'qqm'} || $s{'cpp'} || $s{'c'} ) {
# not-commented, not-quoted semi-colon
# not inside for() loop
increment('LLOC');
}
redo LOOP;
};
/\G./gc && do { # match any other character
# skip 1 character
redo LOOP;
};
/\G$/gc && do { # match end of the line
last LOOP;
};
#default
die 'is_inline_comment($): unexpected character in the line:' .
"\n'$line'";
}
# apply state
$inside_multiline_comment = $s{'c'};
return $has_comment;
}
sub version {
# TODO: version implementation
print <<"VERSION";
NAME v$VERSION
Written by AUTHOR
COPYRIGHT AND LICENSE
VERSION
exit 0;
}
sub invalid_options {
print STDERR (@_ ,"\n");
exit 2;
}
sub get_terminal_size {
my ($wchar, $hchar) = ( -1, -1);
my $win32console = <<'WIN32_CONSOLE';
use Win32::Console;
my $CONSOLE = new Win32::Console();
($wchar, $hchar) = $CONSOLE->MaxWindow();
WIN32_CONSOLE
eval($win32console);
return ($wchar, $hchar) unless( $@ );
warnings::warnif($@); # $EVAL_ERROR
my $term_readkey = <<'TERM_READKEY';
use Term::ReadKey;
($wchar,$hchar, $wpixels, $hpixels) = GetTerminalSize();
TERM_READKEY
eval($term_readkey);
return ($wchar, $hchar) unless( $@ );
warnings::warnif($@); # $EVAL_ERROR
my $ioctl = <<'IOCTL';
require 'sys/ioctl.ph';
die "no TIOCGWINSZ " unless defined &TIOCGWINSZ;
open(TTY, "+</dev/tty")
or die "No tty: $!";
unless (ioctl(TTY, &TIOCGWINSZ, $winsize='')) {
die sprintf "$0: ioctl TIOCGWINSZ (%08x: $!)\n",
&TIOCGWINSZ;
}
($hchar, $wchar, $xpixel, $ypixel) =
unpack('S4', $winsize); # probably $hchar & $wchar should be swapped here
IOCTL
eval($ioctl);
warnings::warnif($@) if $@ ; # $EVAL_ERROR
return ($wchar, $hchar);
}
1;
__END__
=head1 NAME
eLOC - Effective Lines of Code Counter
=head1 SYNOPSIS
B<eloc> B<[>OPTIONB<]...> B<[>FILEB<]...>
Print LOC, eLOC, lLOC, comment, blank, newline and logicline counts
for each FILE, and a total line if more than one FILE is specified.
See L</"LOC Specification"> for more info, use `eloc --man'.
-e, --eloc print the {E}LOC counts
-s, --lloc print the lLOC counts (code {S}tatements)
-l, --loc print the {L}OC counts (eLOC + lines of a single brace or parenthesis)
-c, --comment print the {C}omments counts (count lines which contains a comment)
-b, --blank print the {B}lank counts
-n, --newline print the {N}ewline count
-g, --logicline print the lo{G}ical line count (= LOC + Comment Lines + Blank Lines)
--deterministic print the LOC determination for every line in the source file
--header print header line
--help display this help and exit
--man display full help and exit
--version output version information and exit
With no FILE, or when FILE is -, read standard input.
Metrics counted by the program are based on narration from
http://msquaredtechnologies.com/m2rsm/docs/rsm_metrics_narration.htm
=for TODO: Comment Percent = Comment Line Count / Logical Line Count ) x 100
=for TODO: White Space Percentage = (Number of spaces / Number of spaces and characters) * 100
=head1 DESCRIPTION
eLOC is a simple LOC counter. See L</"LOC Specification">.
=head2 LOC Specification
=over 1
=item LOC
Lines Of Code = eLOC + lines of a single brace or parenthesis
=item eLOC
An effective line of code or eLOC is the measurement of all lines that are
not comments, blanks or standalone braces or parenthesis.
This metric more closely represents the quantity of work performed.
RSM introduces eLOC as a metrics standard.
See http://msquaredtechnologies.com/m2rsm/docs/rsm_metrics_narration.htm
=item lLOC
Logical lines of code represent a metrics for those line of code which form
code statements. These statements are terminated with a semi-colon.
The control line for the "for" loop contain two semi-colons but accounts
for only one semi colon.
See http://msquaredtechnologies.com/m2rsm/docs/rsm_metrics_narration.htm
=item comment
comment = pure comment + inline comment
=over
=item pure comment
Comment lines represent a metrics for pure comment line without any code in it.
See L</"inline comment">.
=item inline comment
Inline comment line is a line which contains both LOC line and pure comment.
Inline comment line and pure comment line (see L</"pure comment">)
are mutually exclusive, that is a given physical line cannot be an inline comment
line and a pure comment line simultaneously.
=over
=item Example:
static const int defaultWidth = 400; // value provided in declaration
=back
=back
=item blank
Blank line is a line which contains at most whitespaces.
Blank lines are counted inside comments too.
=item logicline
The logical line count = LOC + Comment Lines + Blank Lines
=back
=head1 KNOWN BUGS AND LIMITATIONS
=over
=item
It supports only C/C++ source files.
=item
Comments inside for(;;) statements are not counted
=over
=item Example:
for(int i = 0; i < N /*comment*/; i++ ); #LLOC# #LLOC# #LOC# #ELOC# #PHYS# [1]
=back
=item
'\'-ending lines are concatinated ( though newline count is valid)
=item
Input from stdin is not supported in the case
the script is envoked solely by name without explicit perl executable.
=item
Wildcards in path with spaces are not supported (like GNU utilities).
=back
=over
=begin fixed
=item Limitation: single source file
Only one source file at time supported
=item Limitation: LLOC is unsupported
The logical lines of code metric is unsupported.
=item missed inline comment for C style comment
#include <math.h> /* comment */ #ELOC# #PHYS# [2]
But must be
#include <math.h> /* comment */ #INLINE_COMMENT# #ELOC# #PHYS# [2]
=item wrong LOC type for the code after '*/'
/* another #PURE_COMMENT# #PHYS# [36]
trick #PURE_COMMENT# #PHYS# [37]
*/ i++; #PURE_COMMENT# #PHYS# [38]
In the last line must be
#INLINE_COMMENT# #PHYS# [38]
=end fixed
=back
=head1 SEE ALSO
Metrics counted by the program are based on narration from L<http://msquaredtechnologies.com/m2rsm/docs/rsm_metrics_narration.htm>
=cut
答案 11 :(得分：0)
我有一个名为scc的程序，它删除了C语句（和C ++注释，但C99却是相同的）。应用它加上一个过滤器来删除空行，如果需要，还可以包含仅包含开括号和闭括号的行，以生成行数。我已经在内部项目中使用了它 - 不需要打开/关闭大括号。这些脚本比较复杂，比较了ClearCase中存储的两个不同版本的实际项目的源代码。他们还对添加和删除的文件以及在常用文件中添加和删除的行等进行了统计。
不计算括号会产生很大的不同：
Black JL: co -q -p scc.c | scc | sed '/^[ ]*$/d' | wc -l
208
Black JL: co -q -p scc.c | scc | sed '/^[ {}]*$/d' | wc -l
144
Black JL: co -p -q scc.c | wc -l
271
Black JL:
所以，你的规则下有144行; 208计算开闭线; 271计算一切。
Lemme知道您是否需要scc的代码（在gmail dot com上发送电子邮件到第一个点）。这是13 KB的gzipped tar文件，包括手册页，酷刑测试和一些库文件。
@litb评论说'cpp -fpreprocessed -P file'处理剥离问题
评论。它主要是。但是，当我在压力测试中运行它时
对于SCC，它抱怨（在我看来）它不应该：
SCC has been trained to handle 'q' single quotes in most of
the aberrant forms that can be used. '\0', '\', '\'', '\\
n' (a valid variant on '\n'), because the backslash followed
by newline is elided by the token scanning code in CPP before
any other processing occurs.
当GCC 4.3.2的CPP处理此事时，它抱怨（警告）：
SCC has been trained to handle 'q' single quotes in most of
<stdin>:2:56: warning: missing terminating ' character
the aberrant forms that can be used. '\0', '\', '\'', '\\
<stdin>:3:27: warning: missing terminating ' character
n' (a valid variant on '\n'), because the backslash followed
by newline is elided by the token scanning code in CPP before
any other processing occurs.
第5.1.1.2节C99标准的翻译阶段说：
翻译语法规则的优先级由以下阶段指定。（脚注5 ）
物理源文件多字节字符在实现定义中映射 方式，源字符集（引入换行符） 如有必要，可以使用终端指标。 Trigraph序列被替换为 相应的单字符内部表示。
反斜杠字符（）的每个实例后面紧跟一个换行符 删除字符，拼接物理源行以形成逻辑源行。 只有任何物理源代码行的最后反斜杠才有资格成为其中一部分 这种拼接。非空的源文件应以换行符结尾， 在任何此类之前不得立即使用反斜杠字符 拼接发生。
脚注5是：
（5）实现应该表现得就像这些单独的阶段一样 虽然许多人通常在实践中折叠在一起。
因此，在我看来，CPP错误处理了示例文本中的第二阶段。或者，至少，警告不是我想要的 - 构造是有效的C，并且保证警告是不合理的。
当然，这是一个边缘案例，允许额外的警告。但这会让我的生活日光黯然失色。如果我没有自己的，可能更好的工具，那么使用“cpp -fpreprocessed -P”就可以了 - 这是一个我抱怨的极端边缘情况（而且，认为这可能是合理的更有可能是存在问题而不是 - 虽然更好的启发式会观察到线被拼接而且结果是合法的单个字符常量，因此应该抑制投诉;如果结果不是合法的单个字符不断，然后投诉应该产生。（在我的测试案例中 - 无可否认是一次酷刑测试 - CPP产生了13个问题，主要与我抱怨的问题有关，SCC正确地产生了2个。）
（我发现'-P'设法在省略选项时出现的输出中禁止'#line'指令。）
答案 12 :(得分：0)
以下脚本将获取与给定目录中的模式匹配的所有文件的计数。
#START OF SCRIPT
var str文件
var str dir
set $ files =“* .cpp”＃＆lt; =====================在此处设置文件名模式。
set $ dir =“C：/ myproject”＃＆lt; =====================在这里设置你的项目目录。
＃获取变量fileList中的文件列表
var str fileList
find -rn files（$ files）dir（$ dir）＆gt; $的fileList
＃声明我们将保存单个文件计数的变量
var int c＃all lines
var int nb＃non-blank lines
＃声明变量，我们将保存所有文件的总计数
var int totalc＃sum-total of all lines
var int totalnb＃sum-total of all non-blank lines
＃声明我们将存储文件数的变量。
var int fileCount
＃我们将存储当前正在处理的文件的名称，如下所示 var str file
＃逐个通过$ fileList文件
while（$ fileList＆lt;＆gt;“”）
做
＃解压缩下一个文件
lex“1”$ fileList＆gt; $ file
＃检查这是否是一个平面文件。我们对目录不感兴趣
af $ file＆gt; null＃我们不希望看到输出
＃我们只想设置$ ftype变量
if（$ ftype ==“f”）
做
＃是的，这是一个平面文件。
# Increment file count.<br>
set $fileCount = $fileCount+1<br>
# Collect the content of $file in $content<br>
var str content # Content of one file at a time<br>
repro $file >$content<br>
# Get count and non-blank count.<br>
set $c={len -e $content}<br>
set $nb={len $content}<br>
echo -e "File: " $file ", Total Count: " $c ", Non-blank Count: " $nb<br>
# Update total counts.<br>
set $totalc = $totalc + $c<br>
set $totalnb = $totalnb + $nb<br>
完成
ENDIF
#END OF SCRIPT
如果您想要仅在2008年修改的文件中的行数，请添加（$ fmtime＆gt; =“2008”）等。
如果您没有biterscripting，请从.com。
获取答案 13 :(得分：0)
不是一个简单的脚本，但是CCCC（C和C ++代码计数器）已经存在了一段时间，它对我很有用。