$cond_lines++; if ($stat =~ /$test/) { $rawlines[$linenr] =~ /^\s*\("([^"]+)"\)/) { my $herectx = $here . $herecurr)) || } else { $line =~ /^.\s*(DEFINE_MUTEX)\s*\(/) { $prevline =~ /^\+\s+$declaration_macros/) && $level = "warn" if ($level eq "warning"); } if (ERROR("CODE_INDENT", :un)?signed| my $ln = $linenr; $herecurr) && ")"/ex; (?:__)?(?:u|s|be|le)(? } +} for (my $count = $linenr; $count <= $lc; $count++) { :$Modifier\s+|const\s+)* :$typeTypedefs\b)| while ($s =~ /\n\s+\\\n/) { Normally written like this: loosing the trailing slash, written like this: Meinen Namen, meine E-Mail-Adresse und meine Website in diesem Browser, fr die nchste Kommentierung, speichern. if (!$in_comment && $current_comment ne '') { $herecurr) && } else { $sline =~ /^\+\t+( +)(?:$c90_Keywords\b|\{\s*$|\}\s*(? $define_stmt = $l; $sanitise_quote = $c; push(@av_paren_type, $type); You can join his free email academy here. $sline =~ /^\+\s+(? our $Int = qr{[0-9]+$Int_type? } $curr_values = $prev_values . return if ($camelcase_seeded); } } $herecurr); my $do_fix = 1; $s =~ s/^\s*{//; my $context = $4; my $tested = quotemeta($1); } $checklicenseline = 2; my $found_file = 0; $rawline =~ m@^\+[ \t]*.+\*\/[ \t]*$@) { #non blank */ [A-Z_]*ATTR/ || + my $good = $fix_elements[$n] . return $stmt_statements; atomic_t :un)?signed\s+)?long\s+long\s+int}, The Python Ternary Operator And a Surprising One-Liner Hack, 56 Python One-Liners to Impress Your Friends, Finxter Feedback from ~1000 Python Developers, I Use These Free Open-Source Tools to Make Professional Tutorial Videos in 2023, How I Made a Language Translator using Python. if (WARN("SPACING", build_types(); WARN("MODULE_LICENSE", "braces {} are not necessary for single statement blocks\n" . $allowed = 1; if (defined $fix_elements[$n + 2] && $ctx !~ /[EW]x[EW]/) { $herecurr); defined $stat && Tested-by:| # Bail if there is no further context. "Avoid using bool as bitfield. die "$P: $root: --root does not point at a valid tree\n"; $is_end = $lines[$ln - 1] =~ /^\+/; @@ -303,6 +303,9 @@ static int perf_pmu__new_alias(struct list_head *list, char *dir, char *name, FI, + /* Remove trailing newline from sysfs file */ } elsif ($ctx =~ /^.\s*\#\s*elif\s*$/) { if ($line =~ /\bconst\b/ && $line =~ /($InitAttributeData)/) { my $email = $4; + } our $Storage = qr{extern|static|asmlinkage}; } else { my ($linenr, $remain) = @_; ($previndent, $stashindent) = ($stashindent, $indent); } removeTrailNewline () { [ [ $ (tail -c 1 "$1") ]] || truncate -s-1 "$1"; } That is a fast solution as it needs to read only one character from the file and then remove it directly ( truncate) without # This actually removes all trailing newline characters: If you want to remove all trailing whitespaces, use the str.rstrip() method without an argument like so: Lets have a look at the alternatives in more detail next! $sline =~ /^\+\s+$Ident(? # warn if is #included and is available and includes # no C99 // comments my $octal = perms_to_octal($oval); if (defined $realline_next && # check for missing blank lines after struct/union declarations How do you perform decimal multiplications and print the responses out on one line in Bash? } :\.|->))\s*$/; my @setup_docs = (); my $init_char = "c"; our $cnt_warn = 0; if ($#chunks > 0 && $level == 0) { } !($line=~/^. __ref| :0xff|255)$/i) { open($FILE, ') { "Invalid use of __read_mostly with const type\n" . # "sizeof()" or "__alignof__()" last; sub line_stats { :^|\s)(/\S*)}g) { sub seed_camelcase_includes { if ($dbg_attr) { $to =~ s/\s+$//; $fix) { EOM $setup_docs = 1; my $space_after = 0; :break\s*;[\s$;]*$|exit\s*\(\b|return\b|goto\b|continue\b)/); This should be quite quick: Also, for completeness, you can quickly check where your newline (or other special) characters are in your file using cat and the 'show-all' flag -A. if (defined $edge && $edge eq '*/') { our $Type; } :\s+$Modifier|\s+const)* sub hash_show_words { if ($mailback && ($clean == 1 || !$is_patch)) { my $fixlinenr = -1; } } elsif ($cur =~ /^($Ident\s*):(? # single-statement macros do not need to be enclosed in do while (0) loop, if ($1 =~ m@Documentation/admin-guide/kernel-parameters.rst$@) { } if ($seen) { if ($check && report("CHECK", $type, $msg)) { *\\$/ && # preprocessor ##print "CLO\n"; $cnt-- if ($lines[$ln - 1] !~ /^-/); :,|;|\)))\S)/} $1/; ")"/ex; "README", "Documentation", "arch", "include", "drivers", ## "declaring multiple variables together should be avoided\n" . # uncoalesced string fragments # A Fixes: or Link: line sub ctx_block_outer { $git_range = "-$2 $1"; # check for declarations of signed or unsigned without int + struct list_head *alist) my @include_files = (); my $attr = $1; if ($c eq "\t") { next if (!defined($1) || !defined($2)); if ($do_fix) { LINENR => $linenr, if ($ctx =~ /Wx./) { my $orig_desc = "commit description"; )/g) { $herecurr); } $show_L = 0; } WARN("BLOCK_COMMENT_STYLE", } } } elsif ($formatted_email =~ /(\S+\@\S+)(. # so check it for a missing trailing missing space but pointer return types } elsif ($cur =~ /^(sizeof)\s*(\()?/o) { --list-types list the possible message types "\n" . : __initdata) $herecurr) && "do not use in_atomic in drivers\n" . } } s/^(\+. $fix_elements[$n + 2] =~ s/^\s+//; WARN("UNNECESSARY_CASTS", $herecurr) && my ($linenr, $cnt, $here) = @_; $rawline !~ m@^\+.*/\*. $herecurr) && } elsif ($s =~ /^.\s*else\b/s) { $1 !~ /^_*volatile_*$/) { } } else { $sanitise_quote = ''; my $lead = $fixed[$fixlinenr] =~ + return; my $camelcase_file_seeded = 0; $stmt =~ s/(^|\n)./$1/g; # check for spinlock_t definitions without a comment. WARN("INCLUDE_LINUX", if ($in_commit_log && $non_utf8_charset && $realfile =~ /^$/ && The xargs command reads data from the standard input such as keyboard, delimited by blanks (which can be protected with double print $f $fixed_line . $herecurr); $output .= GREEN; #!/usr/bin/env perl @KeithThompson yes, command substitution removes all trailing newlines from the output. $fix) { ## } # Function pointer declarations } elsif ($dbg_attr > 1 && $line =~ /^.+($Modifier)/) { $herecurr); ##print "SKIP CNT\n"; $seen++ if ($block =~ /^\s*{/); our $cnt_chk++; $type =~ /(\d+)/; } next if (defined($line) && $line =~ /^-/); if ($linenr > $suppress_statement && 'f|file!' } ($line =~ /EXPORT_SYMBOL.*\((. my @fix_elements = (); return $clean; if ($line =~ /\bprintk\s*\(\s*(? $fix) { ERROR("TRAILING_STATEMENTS", my $suffix = ""; return ($res, $var); :goto|return)\b/) { elsif ($opv eq ':C' || $opv eq ':L') { "Use of boolean is deprecated, please use bool instead.\n" . if (defined $signatures{$sig_nospace}) { Acked-by:| # check for comparisons against true and false @@ -241,9 +241,11 @@ static int __perf_pmu__new_alias(struct list_head *list, char *dir, char *name. my $has_break = 0; "long udelay - prefer mdelay; see arch/arm/include/asm/delay.h\n" . # Pull out the value of this operator. if ($line =~ /^.\s*(struct\s+mutex|spinlock_t)\s+\S+;/ || } else { }x; $newstore = "${var}_store" if ($store ne "NULL" && $store ne "${var}_store"); $lines[$linenr - 3] =~ /^[ +]/ && $line =~ /^\s*$/) { )}; $1; $herecurr); $suppress_statement = $line_nr_next; } else { ($where != 0 || $prefix !~ /^.\s+$/) && my $stashline=""; my $ctx_cnt = $realcnt - $#ctx - 1; $herectx); #print "==>$rawline\n"; #warn "CONDITION\n"; my $max = $7; while (1) { } # make sense. # function pointer declarations $rpt_cleaners = 1; volatile|__volatile__| $is_end = 1; return ($id, $desc); } elsif (substr($line, $pos, 1) eq '(') { sub ctx_block_get { Asking for help, clarification, or responding to other answers. } $word =~ s/^\s*//g; } wmb| } the results. # check for pointless casting of kmalloc return push(@fixed_deleted, $deleted); my ($linenr, $remain, $off) = @_; "\n"; my $tabs = length($1) + 1; if ($cur =~ /^(\s+)/o) { substr($block, 0, length($cond), ''); Use str.rstrip() to remove a trailing newline. # other possible extensions of declaration lines CHK("INVALID_UTF8", } elsif ($cur =~ /^(\#\s*(? # Check signature styles } $fix) { if (length($c) && $s !~ /^\s*{?\s*\\*\s*$/ && } "/Documentation/devicetree/bindings/"; $c = substr($blk, $off, 1); $check = $check_orig; $herecurr); *old_str) $hereprev); $herecurr) && ERROR("SWITCH_CASE_INDENT_LEVEL", if ($showfile) { *)$/; my $function_name = $1; +} # check for $InitAttributeData (ie: __initdata) with const $hereptr)) { $line++; } " . my $opens = $line =~ tr/\(/\(/; } elsif (index($string, '(') == -1) { our $clean = 0; }; if ($#ARGV < 0) { "do not initialise statics to $1\n" . # See if any suffix of this path is a path within the tree. $herevet) && # unary operator, or a cast ## "No blank lines before declarations\n" . :[\w\.\-]+\/)++[\w\.\-]+:/ || To remove multiple trailing newlines, pipe through: There is also direct support for white space removal in Bash variable substitution: If you want to print output of anything in Bash without end of line, you echo it with the -n switch. if ($bad_specifier =~ /p[Ff]/) { '(*' . if|endif|menu|endmenu|source)\b/x) { 'values', 'possible', 'type', and 'attr' (default "\n"; } elsif ($cur =~ /^($Modifier)\s*/) { } + "%s=%s", term->config, term->val.str); $oldindent = expand_tabs($1); if ($arg_pos > 1) { # "\n" if ($cond_lines); } # use of NR_CPUS is usually wrong my $linenr=0; my $rawline = $rawlines[$linenr - 1]; our $Octal = qr{0[0-7]+$Int_type? } # Catch a comment on the end of the line itself. } my $file = "$1.h"; ^.DECLARE_$Ident\(\Q$name\E\)| } } return @r; $fix) { our $logFunctions = qr{(?x: # check for %L { $herecurr); WARN("MINMAX", "ENOSYS means 'invalid syscall nr' and nothing else\n" . $current_comment .= $line . $hereprev) && defined($stat) && defined($cond) && my $FILE; ERROR("TEST_NOT_ATTR", if ($line =~ /\bmsleep\s*\((\d+)\);/) { } if ($comp eq ""; if ($path =~ m{//}) { print "total: $cnt_error errors, $cnt_warn warnings, " . if (($opens == 0) || ($closes >= $opens)) { our $TypeMisordered; if ($line =~ /(\b$Type\s+$Ident)\s*\(\s*\)/) { # start or end of block or continuation of declaration # All the others need spaces both sides. #abstract Print lines without newline, add a newline only if there is another line to print. $ printf 'one\ntwo\n' | $c = 'W' if ($elements[$n + 2] =~ /^\s/); my $sign_off = $2; $fixed_line =~ s/^\+//; print << "EOM" percentage="60%" number=$ {percentage%\%} This statement removes the shortest matching substring (in this case an escaped %) from the end of the variable. *\bpacked\b/) { __force| $herecurr) && if ($in_commit_log && $line =~ /^\s*change-id:/i) { ## print "1: from to ident\n"; my ($first_line, $end_line) = @_; )\bmemcmp\s*\(\s*$FuncArg\s*,\s*$FuncArg\s*\,\s*ETH_ALEN\s*\)/) { if ($s !~ /^\s*(?:\sif|(? "$here\n$stat\n"); *)\)\s*\)\s*\)/"__scanf(" . :DEVICE_|)ATTR_2", 2], if ($frag !~ /(? } $prefix = ''; : !\+)|\*|\&\&|\&)/o) { + perf_pmu_assign_str(old->name, "value", &old->str, &newalias->str); ["SENSOR_TEMPLATE(? $good .= " "; } elsif ($cast =~ /\blong\b/) { # 1. with a type on the left -- int [] a; $line = expand_tabs($line); our $typeTypedefs = qr{(?x: "\n"; # open braces for enum, union and struct go on the same line. 'patch!' # simplify matching -- only bother with positive lines. if ($ms_size =~ /^(0x|)0$/i) { $a = 'W' if ($elements[$n] =~ /\s$/); "quoted string split across lines\n" . } $herecurr . $type = 'c'; [ [ $ $NonptrTypeMisordered = qr{ :$Ident|-?$Constant)$/ && # for () bar() if ($line =~ m@\b(sizeof\s*\(\s*\Q$array\E\s*\)\s*/\s*sizeof\s*\(\s*\Q$array\E\s*\[\s*0\s*\]\s*\))@) { } } # unnecessary space "type (*funcptr) (args)" sub ltrim { "DEVICE_ATTR unusual permissions '$perms' used\n" . 'mailback!' my $opv = $op . } } elsif ($possible =~ /\s/) { } # defined $stat && } possible($1, "C:" . print "ASSIGN($1)\n" if ($dbg_values > 1); :${Misordered}\b) :mem|cpu|dev|net_|)}; (-e ".git")); :\+|-| |\\ No newline|$)}) { $herecurr); sub expand_tabs { my $goodspaceindent = $oldindent . " defined $stat && join("|\n ", @typeListMisordered) . $fixed[$fixlinenr] =~ $tmp_stmt =~ s/\#+\s*$arg\b//g; $type = 'N'; } elsif ($color =~ /^never$/i) { if ($realfile =~ /^MAINTAINERS$/ && WARN($msg_type, # structure definitions like "(struct foo) { 0 };" } if (statement_block_size($block) > 1) { WARN("MSLEEP", $av_pending = '_'; ERROR("OPEN_BRACE", --max-line-length=n set the maximum line length, if exceeded, warn WARN("READ_BARRIER_DEPENDS", if (defined($stat_real) && $cond_lines > 1) { #print "linenr \n"; substr($var, length($res), 1, $variant); qr{(?:(? __weak if ($type eq '{' && $c eq '}') { sub perms_to_octal { ____cacheline_aligned| $av_pending = 'N'; #print "cond block allowed\n"; $off++; our $Attribute = qr{ }; :$Lval|$Constant)$/ && # 10 // foo() // !foo // ~foo // -foo // foo->bar // foo.bar->baz if ($line =~ /\b__FUNCTION__\b/) { If correctable single-line errors exist, create \s*0[xX][0-9]+\s* if ($prevline =~ /\bif\s*\(\s*($Lval)\s*\)/) { # print "$herecurr"; $herecurr); my $value = $1; $fix) { } $line =~ /\bsscanf\b/) { $fix) { (If It Is At All Possible). } (($check)? } # Checks which are anchored on the added line. if (!top_of_kernel_tree($root)) { __read_mostly| while (defined($deleted) && ${$deleted}{'LINENR'} == $old_linenr) { ## while ($ln =~ s/\([^\(\)]*\)//g) { my $newindent = $1; + zfree(&newalias->name); } $fix) { if (WARN("BAD_SIGN_OFF", } $var !~ /^(? my $is_start = 0; $suppress_statement = 0; $line =~ /\b$Inline\s+$Storage\b/) { Is it feasible to travel to Stuttgart via Zurich? { "Comparing get_jiffies_64() is almost always wrong; prefer time_after64, time_before64 and friends\n" . $delta_offset = 0; } else { => \$list_types, } } } "void function return statements are not generally useful\n" . (? 528), Microsoft Azure joins Collectives on Stack Overflow. } elsif ($line =~ /^\+\+\+\s+(\S+)/) { } if (!defined($stat_real)) { } else { push(@av_paren_type, $type); if (CHK("AVOID_EXTERNS", $newfile .= ".EXPERIMENTAL-checkpatch-fixes" if (!$fix_inplace); $typeKernelTypedefs\b if (defined $2 && $type eq 'C' || $type eq 'T') { if ($linecount > 3) { $herectx); sub trim { WARN("HOTPLUG_SECTION", fix_delete_line($fixlinenr, $rawline); + * Rebuild string to make alias->str member comparable. annotate_values($opline . # check for unnecessary blank lines around braces print "$linenr > $curr_vars\n"; *@@; $type = $1; } elsif ($res =~ /^.\s*\#\s*(?:error|warning)\s+(. *"; foreach my $file (@include_files) { How do I iterate over a range of numbers defined by variables in Bash? :}[ \t]*)?else(? if ($realfile !~ m@scripts/@ && } $fixed[$fixlinenr] =~ "$herectx"); $herecurr); my $asm_volatile = qr{\b(__asm__|asm)\s+(__volatile__|volatile)\b}; "Unnecessary typecast of c90 int constant\n" . sub tabify { <<=|>>=|<=|>=|==|!=| $fixlinenr++; } push(@modifierListFile, $modifier); __maybe_unused| How do I set a variable to the output of a command in Bash? $line =~ /\b(? --ignore-perl-version override checking of perl version. if (defined $2) { $level--; print "$vname has no obvious style problems and is ready for submission.\n"; So instead of messing around with that let us just make sure it does not have one. print " $word"; #warn "CSB: blk off len\n"; my $new_linenr = 0; "please write a paragraph that describes the config symbol fully\n" . expect if ($realfile !~ m@\binclude/uapi/@ && } for my $arg (split(/\s*,\s*/, $ctx)) { "Consecutive strings are generally better as a single string\n" . my $comma_close = ""; (? if ($line =~ /^\+. To remove all trailing whitespaces, not only newline characters '\n', you can use the str.rstrip() method without any argument. if (defined $stat && $has_break = 1 if ($fline =~ /\bswitch\b|\b(? if (ERROR("SPACING", our $InitAttributeConst = qr{$InitAttributePrefix(? WARN("BAD_SIGN_OFF", if ($msg_type ne "" && (? last if $rl =~ /^[ \+]. :Clear|Set|TestClear|TestSet|)Page[A-Z]/ && $line =~ s/\s*\n?$//g; "use relative pathname instead of absolute in changelog text\n" . } store_mb| sub get_stat_real { } } our $mode_perms_search = ""; "$herectx"); } $fix) { $fix) { > newlines, etc and rebuild string to make alias->str member my ($res, $coded); if (WARN("PREFER_IS_ENABLED", :$underscore_smp_barriers)\s*\(/) { } } elsif ($cur =~ /^($Type)\s*(? } elsif ($realfile !~ m@^kernel/@) { } + * platforms have terms specified as if ($line =~ /\bin_atomic\s*\(/) { } two done # not starting a section or a macro "\" extended line if ($line =~ /^\+.*\bstatic\s. my ($linenr, $line) = @_; my $count = 0; $sub_to =~ s/\Q$from\E/$to/; LINE => $line, $previndent == $indent) { # } my $sline = $line; #copy of $line if (! $fix && my $line = $rawlines[$linenr - 1]; @rawlines = (); $herecurr); ctx_statement_block($linenr, $realcnt, 0); WARN("VSPRINTF_POINTER_EXTENSION", } return ctx_block_get($linenr, $remain, 0, '(', ')', $off); Fraction-manipulation between a Gamma and Student-t, Is this variant of Exact Path Length Problem easy or NP Complete, An adverb which means "doing without understanding", Meaning of "starred roof" in "Appointment With Love" by Sulamith Ish-kishor. "\n"); if ($realfile =~ m@^drivers/@) { if ($#ARGV > 0 && $quiet == 0) { if (CHK("PREFER_KERNEL_TYPES", "$herectx"); ]+\s+\|\s+\d+/ || $msg_type = ""; my $has_commit_log = 0; #Encountered lines before patch *//; } "Prefer kstrto to single variable sscanf\n" . :\+|Subject:)/i)) { if ($check) { $herecurr); $output = (split('\n', $output))[0] . if ($line =~ /\bjiffies\s*$Compare|$Compare\s*jiffies\b/) { qr{long\s+(? push(@lines, $line); $name = $1; Making statements based on opinion; back them up with references or personal experience. 'emacs!' ); $sline =~ /^\+\s+$Declare\s*\(\s*\*\s*$Ident\s*\)\s*[=,;:\[\(]/ || } + ret += scnprintf(newval + ret, sizeof(newval) - ret, } "Missing a blank line after declarations\n" .
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