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} $type = '{'; } } cat_vet($rawline) . $line =~ /\bif\s*((? # could continue the statement. __used| } # and whether or not function naming is typical and if You can then assign this new string to your original variable. $color = (-t STDOUT); } else { # avoid checking a few false positives: + ret += scnprintf(newval + ret, sizeof(newval) - ret, :Link|Patchwork|http|https|BugLink):/i && $fixed[$fixlinenr] =~ } return $string; } $s =~ s/\n. } warn "NOTPOSS: $possible ($line)\n" if ($dbg_possible > 1); $line =~ /^\+\s*EXPORT_SYMBOL/ || # when !drivers/staging or command-line uses --strict $output .= "$type:"; } $fix) { foreach my $entry (@mode_permission_funcs) { if (ERROR("INIT_ATTRIBUTE", while (length($cur)) { $herecurr); 'mailback!' # use the default permissions # check for various structs that are normally const (ops, kgdb, device_tree) ERROR("MISPLACED_INIT", sub uniq { $herecurr); my ($root) = @_; } } $fixed[$fixlinenr] =~ s/^\+$new_leading_tabs/\+$leading_tabs/; *\*/[ \t]*$@ && #inline /**/ $line =~ /^\+\s*(extern\s+)$Type\s*$Ident\s*\(/s) { # avoid cases like "foo + BAR < baz" } # UTF-8 regex found at http://www.w3.org/International/questions/qa-forms-utf-8.en.php qr{int\s+(? # defined $stat && my $hexval = sprintf("0x%x", oct($var)); $rename .= " '$store' to '$newstore'"; trim($fix_elements[$n + 1]) . " $herecurr) && ("@rawlines" ne "@fixed" || my $ln = $linenr - 1; } :if|for|while)\b/) { } $realfile !~ m@/barrier\.h$@ && if ($check && report("CHECK", $type, $msg)) { } } while ($line =~ /\b$LvalOrFunc\s*(==|\!=)\s*NULL\b/g) { Perhaps use '${lead}${op}${arg}${trail}'\n" . } else { "Possible switch case/default not preceded by break or fallthrough comment\n" . my $use = ""; "unnecessary whitespace before a quoted newline\n" . *)\)\s*\)\s*\)/"__scanf(" . $hasparens = 1; --ignore TYPE(,TYPE2) ignore various comma separated message types $line =~ /\b__attribute__\s*\(\s*\(. # where necessary. "space required before the open parenthesis '('\n" . } }x; $offset} = 1; `grep -Erq "$compat|$compat2|$compat3" $dt_path`; length(expand_tabs(substr($line, 1, length($line) - length($1) - 1))) <= $max_line_length) { } # WARN("SPACING", NOTE: For some of the reported defects, checkpatch may be able to } WARN('MISSING_SPACE', $line =~ s/\s*\n?$//g; # check for semaphores initialized locked ERROR("WEAK_DECLARATION", qr{int\s+short(?:\s+(? my $cnt = statement_rawlines($ctx); s/\s+\)/\)/; $newcomp = "=") { ERROR("MEMSET", our @typeListWithAttr = ( +. } elsif ($octal_perms eq "0644" || $rawline =~ /^Content-Type:.+charset="(.+)". for (my $ln = $linenr + 1; $cnt > 0; $ln++) { if ($realfile =~ /^MAINTAINERS$/ && foreach my $line (@lines) { if ($line =~ /^\+. my $save_line = 1; } $to =~ s/\s+$//; } my $test = substr($2, 1, -1); "msleep < 20ms can sleep for up to 20ms; see Documentation/timers/timers-howto.txt\n" . foreach my $fixed_line (@fixed) { #warn "[" . $cnt == 1 && + list_for_each_entry(a, alist, list) { if (WARN("DEVICE_ATTR_WO", (?:(? "patch seems to be corrupt (line wrapped? # SPDX-License-Identifier: GPL-2.0 ^(? if ($^V && $^V ge 5.10.0 && __noclone| } WARN("MODULE_LICENSE", my @compats = $rawline =~ /\"([a-zA-Z0-9\-\,\.\+_]+)\"/g; if (!$reported_maintainer_file && !$in_commit_log && seq_vprintf|seq_printf|seq_puts } $fixed[$fixlinenr] =~ s/\Q$var\E/$var2/; $camelcase{$1} = 1; next if ($line =~ m/^\s*$/); }x; my @newlines = ($c =~ /\n/gs); How do I use the Schwartzschild metric to calculate space curvature and time curvature seperately? $dstat !~ /^(? "space prohibited before that '$op' $at\n" . my $stat_real; } They are equivalent, except for the fact that $() is easier to nest. # Function pointer declarations elsif ($op eq '++' or $op eq '--') { #warn " $line\n"; my $line = $fixed[$fixlinenr]; } # parenthesis it is simply not a parameter group. */) { "$here\n$ctx\n$rawlines[$ctx_ln - 1]\n"); if ($$lineRef =~ /^\@\@ -\d+,\d+ \+(\d+),(\d+) \@\@/) { if ($line =~ /(^. if ($^V && $^V ge 5.10.0 && WARN("USE_RELATIVE_PATH", } next if ($realfile !~ /\. CHK("CAMELCASE", > PMU alias definitions in sysfs files may have spaces, newlines "switch and case should be at the same indent\n$hereline$err"); :$Compare|$Assignment|$Operators)\s*$/ || :\s*\(?\s*|\s+)\1_MODULE\s*\)?\s*$/) { $#fixed_inserted >= 0 || $#fixed_deleted >= 0)) { } if ($line =~ /(.*)\b((?:if|while|for|switch|(? } elsif ($line =~ /\b([0-9a-f]{12,40})\b/i) { \@\@(. foreach my $l (@stmt_array) { my $trail = $5; "^"; my $pre_ctx = "$1$2"; my $len = length($line); :un)?signed| $stat_real = "[]\n$stat_real"; WARN("PREFER_PACKED", qr{struct\s+$InitAttribute\s+$Ident}, } foreach my $type (@types) { if ($line =~ /\b$Type\s+$Inline\b/ || if (!$in_comment && $current_comment ne '') { #print "APW: ALLOWED: block\n"; if ($line =~ /\bMODULE_LICENSE\s*\(\s*($String)\s*\)/) { 'f|file!' my ($string) = @_; } Browse other questions tagged, Where developers & technologists share private knowledge with coworkers, Reach developers & technologists worldwide. if (WARN("CONSTANT_CONVERSION", :\s|\}|\+)/) && our $clean = 1; $prevrawline =~ /^\+[ \t]*\*/)) { #leading * + zfree(old_str); "Avoid gcc v4.3+ binary constant extension: \n" . sanitise_line_reset($in_comment); my $attr = $1; "trailing statements should be on next line\n" . } my $length; $good = $fix_elements[$n] . WARN("STATIC_CONST_CHAR_ARRAY", if (($sanitise_quote eq "'" || $sanitise_quote eq '"') && if ($line =~ /\b((simple|strict)_(strto(l|ll|ul|ull)))\s*\(/) { sub deparenthesize { $fix_elements[$n + 2] =~ s/^\s+//; } elsif ($cur =~ /^($Type)\s*(? } elsif ($comp eq "<=") { } if ($fix && $line_fixed && $fixed_line ne $fixed[$fixlinenr]) { # ' *' then it is very likely a comment. $line = $rawline; if ($rawline=~/^\+\+\+\s+(\S+)/) { :\+| |$)/) { "\n" if ($cond_lines); if ($^V && $^V ge 5.10.0 && $herecurr); } next if ($line =~ m/^\s*$/); # extract the filename as it passes } } ERROR("DATE_TIME", my $var = $2; # emit the "does MAINTAINERS need updating?" } $line =~ s/,. # check for sizeof without parenthesis WARN("MASK_THEN_SHIFT", $line =~ /\b($Declare)\s*$Ident\s*[=;,\[]/) { $type =~ s/\s+/ /g; Is the same as --fix, but overwrites the input literally "Assignment operator '$1' should be on the previous line\n" . $rpt_cleaners = 1; if ($line =~ /^\+/ && defined $lines[$linenr] && $lines[$linenr] =~ /^\\ No newline at end of file/) { my $which = $1; push(@res, $rawlines[$line]); "'const $found const *' should probably be 'const $found * const'\n" . foreach (@allowed) { $herecurr); } elsif ($commit_expr =~ m/\.\./) { if ($line2 !~ /^\s*$/) { } our $allowed_asm_includes = qr{(?x: if ($rawline =~ /\bwrite to the Free/i || my $ok = 0; if ($line =~ /^.\s*(?:case\s+(? my $c; sub hash_save_array_words { # Check if the commit log has what seems like a diff which can confuse patch last if ($fline =~ /^\@\@/); :[\w\.\-]+\/)++[\w\.\-]+:/ || $ printf "one\ntwo" | perl -0 -pe 's my $hereprev = "$here\n$prevrawline\n$rawline\n"; return($current_comment); my $ctx_ln = $linenr; # Check for duplicate signatures my $lc = $stat =~ tr@\n@@; sub annotate_values { ## print("el: \n"); } $dstat !~ /^for\s*$Constant$/ && # for () our $typeOtherOSTypedefs = qr{(?x: *"\s*$/ && $output =~ s/^\s*//gm; rmb| # function pointer declarations print "PRE_RESTART($1)\n" if ($dbg_values > 1); # Check for misused memsets $line =~ /\b__attribute__\s*\(\s*\(. our $typeC99Typedefs = qr{(?:__)?(?:[us]_?)?int_?(? if (!defined $suppress_export{$linenr} && "__aligned(size) is preferred over __attribute__((aligned(size)))\n" . Problem: Remove multiple newline characters (e.g., '\n\n\n') from the string. $word =~ tr/[a-z]/[A-Z]/; $prevline--; (?:__)?(?:u|s|be|le)(? $Modifier = qr{(? $stat =~ /^.\s*extern\s+/) :initconst\b)}; my $prevline = $linenr; } + WARN("VSPRINTF_SPECIFIER_PX", An upgrade to at least perl v5.10.0 is suggested. my $seen = 0; while ($rawline =~ /(?:^|[^a-z@])($misspellings)(? # function brace can't be on same line, except for #defines of do while, $fixed_line = $fixed_line . *)/) { # check for space before tabs. WARN("NAKED_SSCANF", exit(0); if (!defined($stat_real)) { length(expand_tabs(substr($line, 1, length($line) - length($1) - 1))) <= $max_line_length) { # Should not end with a space. # Checks which are anchored on the added line. if ($line =~ /\bprintk_ratelimit\s*\(/) { # Get the full operator variant. If so, there's probably no need to ($remain > 0 && $condition =~ /^(?:\s*\n[+-])*\s*(? ")"/ex; [^\]]*NR_CPUS[^\]]*\]/ && # This is not a patch, and we are are in 'no-patch' mode so } *a/[\w/]+@ && +} } } elsif ($cur =~ /^($Ident\s*):(? EOM (?:(? my ($type, $msg) = @_; if ($realfile =~ /\.c$/ && defined $stat && if (defined $fix_elements[$n + 2] && $ctx !~ /[EW]x[EW]/) { __ref| $sub_to =~ s/\Q$from\E/$to/; $files = `git ls-files "include/*.h"`; $r1 = $a2; Why is doing command execution in backticks better than using a pipe? } my $s = $stat; if ($^V && $^V ge 5.10.0 && open(my $camelcase_file, ') { WARN("LINUX_VERSION_CODE", ^.DECLARE_$Ident\(\Q$name\E\)| return ($id, $desc) if ($#lines < 0); my $cnt = $realcnt; } if (ERROR("POINTER_LOCATION", "do not use C99 // comments\n" . $rtrim_before = 1; #print "APW: ALLOWED: chunk-1 block\n"; 'showfile!' $realfile ne $checkfile && $fix && $prevline =~ /^\+/ && $line =~ /^\+/) { my %signatures = (); *"\s*\)\s*;\s*$/) { } elsif ($lines[$line] =~ /^.\s*#\s*endif\b/) { open($FILE, '-|', "git format-patch -M --stdout -1 $filename") || return; :un)?signed\s+)?short}, if ($prev_values eq 'E' && $s =~ /^(.(?:typedef\s*)?(?:(?:$Storage|$Inline)\s*)*\s*$Type\s*(? ($short || $long || $space || $case || ($orig_desc ne $description) || !$hasparens)) { fix_delete_line($fixlinenr, $rawline); "braces {} are not necessary for any arm of this statement\n" . # check for new externs in .c files. This removes, Bash: Strip trailing linebreak from output, gnu.org/software/sed/manual/sed.html#Numeric-Addresses, Flake it till you make it: how to detect and deal with flaky tests (Ep. # 2) any opening brace { on end of the line $sanitise_quote = ''; How can this box appear to occupy no space at all when measured from the outside? if ($type eq '{' && $c eq '}') { $herecurr); $fixed[$fixlinenr] =~ s@\b$sign\s*\Q$pointer\E\s*$var\b@$decl$var@; if ($var !~ /^$Constant$/ && $level = "warn" if ($level eq "warning"); $in_commit_log = 1; $off++; if ($min eq $max) { expect $c = substr($line, $off, 1); How do I set a variable to the output of a command in Bash? close($spelling); } $herecurr); } "Invalid use of __read_mostly with const type\n" . my $var = $1; $line =~ s/\s*\n?$//g; !($line=~/^. $level++; warn "MODIFIER: $modifier ($possible) ($line)\n" if ($dbg_possible); fixup_current_range(\$lines[$range_last_linenr], $delta_offset++, 1); my $skip_args = ""; int\s+long\s+(? # 3. inside a curly brace -- = { [010] = 5 } Card trick: guessing the suit if you see the remaining three cards (important is that you can't move or turn the cards). sub ctx_statement { my $nl = $l + $length; } } "S_IRWXO" => 0007, # lines with only strings (w/ possible termination) }x; if (defined $edge && $edge eq '*/') { So what's the difference (if any) between $( ) and backticks? $Storage| :$valid_licenses)"$/x) { } } if ($line=~/\bswitch\s*\(. # #defines with only strings #Ignore Page variants $lines[$realline_next - 1] =~ /EXPORT_UNUSED_SYMBOL.*\((. # case and default should not have general statements after them } my @lines = split('\n', $text); } else { } : } elsif ($emacs) { my $av_pend_colon; $color = 1; # check for simple sscanf that should be kstrto if (defined($stat_real) && $cond_lines > 1) { } my $newindent = $2; # LONG_LINE_COMMENT a comment starts before but extends beyond $max_line_length my ($formatted_email) = @_; Note: it is not the variable assignment, but the expression expansion that removes newlines. ]+\s+\|\s+\d+/ || $line !~ /\b__bitwise\b/) { :else|do)\b/s)); $1 ne "void") { } } return @lines; return grep { !$seen{$_}++ } @_; $stat_next =~ s/\n./\n /g; $hereprev) && } warn "No codespell typos will be found - file '$codespellfile': $!\n"; } if ($^V && $^V ge 5.10.0 && Flake it till you make it: how to detect and deal with flaky tests (Ep. $sline =~ /^\+\t+( +)(?:$c90_Keywords\b|\{\s*$|\}\s*(? } elsif ($line =~ /\bcommit\s+[0-9a-f]{5,}\s*$/i && $herecurr) && my $line; my $is_end = 0; my $match = $1; next; WARN("NR_CPUS", "$here\n$stat_real\n"); } } elsif ($file) { ERROR("BAD_SIGN_OFF", $herectx); # check for bool bitfields #abstract Print lines without newline, add a newline only if there is another line to print. $ printf 'one\ntwo\n' | Wrote EXPERIMENTAL --fix correction(s) to '$newfile' print "$vname has no obvious style problems and is ready for submission.\n"; WARN("NEW_TYPEDEFS", } :$Ident|$Constant)\s*|default):/) { ## maybe suggesting a correct construct would better } $herecurr); Additionally, one should be aware, that command substitution by POSIX specifications removes trailing newlines: $ echo "$ (printf "one\ntwo\n\n\n")" one two Thus, outputting a file via $ (cat ## } $store =~ /^${var}_store$/ && } (my $res = shift) =~ tr/\t/ /c; $rawlines[$linenr] =~ /^\s*[^"]+"\)/) { my $first_line = 0; my $octal = perms_to_octal($oval); if (ERROR("SPACING", $remainder = substr($blk, $off); $good = rtrim($fix_elements[$n]) . # Check the post-context. my $FILE; if ($show_Z && $string =~ /%[\*\d\.\$]*Z([diouxX])/) { } } } ##print "file\n"; } else { $fix) { #Create a search pattern for all these functions to speed up a loop below $line =~ /^.\s*\#\s*define\s+$Ident(\()?/) { # Track the previous line. $hereprev) && $fixed[$fixlinenr] =~ *aligned/) { __read_mostly| :${mode_perms_search})"; if (! } } my $openparens = $1; + zfree(&newalias->metric_expr); } # (but not if it is a multiple line "if (foo) return bar; else return baz;") my $val = ""; &&|\|\||,|\^|\+\+|--|&|\||\+|-|\*|\/|%| our $cnt_warn++; */) && "$here\n$stat_real\n"); # and end, all to $;. my ($first_line, $end_line) = @_; $fixedline =~ s/\Q$extracted_string\E\Q$comma_close\E//; # * goes on variable not on type > tx_nc_tend -> 'cpum_cf'/'event=0x008d my ($linenr, $remain, $off) = @_; # simplify matching -- only bother with positive lines. print report_dump(); # comment. *\b(__i386__|__powerpc64__|__sun__|__s390x__)\b@ && $realfile !~ m@include/asm-@) { our $Sparse = qr{ :if|while|for)\s*\(/ && $line !~ /^.\s*#/) { " . if ($tree && $rawline =~ m{^.\s*\#\s*include\s*\}) { # XXX(foo); $Type = qr{ CHK("UNCOMMENTED_DEFINITION", $herecurr); }; :un)?signed)}, :typeof|__typeof__)\s*\([^\)]*\)| ($stat, $cond, $line_nr_next, $remain_next, $off_next) = The script always prints previous lin This is a convenient solution with @nobar's suggestion: -1 (though I did not actually press the button for it since I would only be allowed to change it once). :$Member\s*)+\))[ \t]*\(/ && $1 !~ /^if/) { $fix) { } $c = 'V' if ($elements[$n + 2] ne ''); } $fixedline = $rawline; $hereptr)) { } elsif ($op eq '<>' or "Use of $attr requires a separate use of const\n" . (defined($2) && $2 ne ','))) { if ($sanitise_quote eq '*/' && substr($line, $off, 2) eq '*/') { (? if (ERROR("SPACING", | $NON_ASCII_UTF8 !\+)|\*|\&\&|\&)/o) { # check spacing between type, funcptr, and args "lockdep_no_validate class is reserved for device->mutex.\n" . #print "pre\nline\nctx\nnext\n"; $type = 'E'; If this name is already #warn "'*' is part of type\n"; $linenr >= 3 && } :_ratelimited|_once|_deferred_once|_deferred|)| "return is not a function, parentheses are not required\n" . ^(? 528), Microsoft Azure joins Collectives on Stack Overflow. $line =~ s/^.//; } elsif ($dstat =~ /;/) { 'EXTRA_CPPFLAGS' => 'cppflags-y', "Reusing the krealloc arg is almost always a bug\n" . "\n"; "use relative pathname instead of absolute in changelog text\n" . $hashRef->{$word}++; elsif ($opv eq ':C' || $opv eq ':L') { I have, however, updated my answer to suit the more general case. $herecurr) && # Find out how long the conditional actually is. # We need \b after 'init' otherwise 'initconst' will cause a false positive in a check $rpt_cleaners = 0; } my $stmts = $2; if ($declare =~ /(\s+)$/) { )}x; } my $range_last_linenr = 0; fix_insert_line($fixlinenr, "\+\t" . "Concatenated strings should use spaces between elements\n" . if ($op eq '*' && $cc =~/\s*$Modifier\b/) { qr{union\s+$Ident}, asm|__asm__| push(@ARGV, '-'); :$barriers) my $last_blank_line = 0; # before $max_line_length } fixup_current_range(\$line, $delta_offset, 0); } How to tell if my LLC's registered agent has resigned? print << "EOM" } $address = $2; } # "sizeof()" or "__alignof__()" $type = 'T'; WARN("CONFIG_DESCRIPTION", if (WARN("USE_FUNC", } if (!$in_commit_log && if ($level == 0 && $coff_set == 0 && $p = $c; There are other string manipulating facilities built into bash. $hereptr)) { :|\?|: "DT compatible string vendor \"$vendor\" appears un-documented -- check $vp_file\n" . if (("$test" eq "==" && "$type" eq "true") || my $remainder; my $count = $format =~ tr@%@%@; } WARN("BRACES", } next; cat_vet($rawline) . my $spacing = $1; " . #print "is_start is_end length\n"; } $fixedline =~ s/^(.\s*)\{\s*/$1/; + if (! if (!show_type($type) || if ($fixedline !~ /^\+\s*$/) { ERROR("MULTISTATEMENT_MACRO_USE_DO_WHILE", if (defined $cond) { } # It is, so see if the prefix is acceptable. } } } $herecurr) && Make exceptions when the previous string ends in a This prevents urllib3 from configuring SSL appropriately and may cause certain SSL connections to fail. Two parallel diagonal lines on a Schengen passport stamp. }; "that open brace { should be on the previous line\n" . => \$showfile, $has_break = 1 if ($fline =~ /\bswitch\b|\b(? $lc = $lc + $linenr; */ # *@$1$clean@; WARN("WAITQUEUE_ACTIVE", Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. "Prefer dev_$level( to dev_printk(KERN_$orig, \n" . $init_char = $1; my ($linenr, $remain, $off) = @_; wmb| my ($cond, $block) = @{$chunks[0]}; ## # check for blank lines before declarations } elsif ($op eq '->') { $line =~ /DEVICE_ATTR. #gcc binary extension my $otype = $4; my @array = split(/,/, join(',', @$arrayRef)); if (CHK("UNNECESSARY_PARENTHESES", $len = length($blk); if (($opens == 0) || ($closes >= $opens)) { if ($line =~ /^\+. my ($stat, $cond, $line_nr_next, $remain_next, $off_next, ctx_statement_block($linenr, $realcnt, 0); time| # Ignore those directives where spaces _are_ permitted. if ($line =~ /\bif\s*(?:\(\s*){$count,$count}$LvalOrFunc\s*($Compare)\s*$LvalOrFunc(? } $line =~ /\b__attribute__\s*\(\s*\(\s*format\s*\(\s*printf/) { my $var = $1; "$here\n$stat_real\n"); } 'min-conf-desc-length=i' => \$min_conf_desc_length, if ($realfile =~ m@^include/asm/@) { my $fmt = get_quoted_string($line, $rawline); # so check it for a missing trailing missing space but pointer return types my $msg = ""; pathname expansion are not performed on if ($rtrim_before) { } my $ext_type = "Invalid"; } if ($^V && $^V ge 5.10.0) { $herecurr) && my $word = $1; $herecurr); trim($fix_elements[$n + 1]); $dstat !~ /^\(\{/ && # ({ $off += length($el); if (defined $fix_elements[$n + 2]) { } "if this code is redundant consider removing it\n" . if ($lines[$ln - 1] =~ "---help---") { "Please use git commit description style 'commit <12+ chars of sha1> (\"\")' - ie: '${init_char}ommit $id (\"$description\")'\n" . $fixed[$fixlinenr] =~ s/^(\+.*(? } __maybe_unused| undef $context_function; my $output = `git log --no-color --format='%H %s' -1 $commit 2>&1`; } elsif ($cur =~ /^($Assignment)/o) { $fixed[$fixlinenr] =~ s/\bsizeof\s+((?:\*\s*|)$Lval|$Type(? $fixed[$fixlinenr] =~ s/\b($Lval)\s*\=\s*(? } "fs", "init", "ipc", "kernel", "lib", "scripts", $line !~ m/^.\s*\#\s*define\s+(? "Use of the '$1' macro makes the build non-deterministic\n" . $var !~ /^(? our $Declare; $realcnt=$3+1; my $checkfile = "include/linux/$file"; my $leading_tabs = ""; # requires at least perl version v5.10.0 ) WARN("STORAGE_CLASS", if (WARN("SPACING", } $line =~ /^diff --git a\/[\w\/\.\_\-]+ b\/\S+\s*$/))) { if (!$outer || $level <= 1) { my $lc = $stat =~ tr@\n@@; # (c) 2001, Dave Jones. "\n"; # is not linear. )\busleep_range\s*\(\s*($FuncArg)\s*,\s*($FuncArg)\s*\)/) { } # one does, and continue as if the #endif was not here. $type = 'T'; my $fline = $lines[$prevline - 1]; pop(@av_paren_type); "\n)"; ERROR("OPEN_BRACE", | \xF4[\x80-\x8F][\x80-\xBF]{2} # plane 16 @@ -285,7 +308,7 @@ static int __perf_pmu__new_alias(struct list_head *list, char *dir, char *name. } # check for whitespace before a non-naked semicolon $sline =~ s/$;/ /g; #with comments as spaces # avoid BUG() or BUG_ON() # Check operator spacing. $previndent == $indent) { } Heres an example of a string with the mixed trailing whitespace sequence '\n\n\n \t \n ': The output shows that all trailing whitespace characters have been removed: Okay, theres something missingwhat if you want to remove only a single (but not multiple) trailing newline characters? $herecurr); $blk .= $rawlines[$line]; $line =~ /^\+\s*__setup/)) { > such as /sys/devices/cpum_cf/events/TX_NC_TEND. } } } ##print "CMMT: $cmt\n"; } elsif ($line =~ /^\+\s*$String\s*(? if ($type =~ /^(?:(?:$Storage|$Inline|$Attribute)\s+)*((?:un)?signed)((? $address = ""; $space = 0 if ($line =~ /\bcommit [0-9a-f]/i); return @r; my $herectx = get_stat_here($linenr, $cnt, $here); fix_insert_line($fixlinenr, $fixedline); $av_preprocessor = 1; } } } for (my $count = $linenr + 1; $count <= $lc; $count++) { } } : "space prohibited before that '$op' $at\n" . $rename .= " '$show' to '$newshow'"; WARN("PRINTK_RATELIMITED", if ($newindent ne $goodtabindent && S_IALLUGO | # check for case / default statements not preceded by break/fallthrough/switch __init_refok| "Avoid unnecessary line continuations\n" . qr{float}, my $do_fix = 1; :\s*\|\s*)?\s*)/g) { "suspect code indent for conditional statements ($indent, $sindent)\n" . my @rawlines = (); Conditional actually is ( KERN_ $ orig, \n '' ; `` unnecessary whitespace before a newline\n... Invalid use of the ' $ op ' $ op ' $ op ' $ '! '' __scanf ( `` `` CMMT: $ valid_licenses ) ''. a Schengen stamp! Instead of absolute in changelog text\n ''. of __read_mostly with const type\n ''. (... The conditional actually is # check for space before tabs case/default not preceded by break or fallthrough ''! $ c90_Keywords\b|\ { \s * $ |\ } \s bash remove trailing newline from variable \ ) \s * $ |\ } \s \=\s. $ good = $ 1 ' macro makes the build non-deterministic\n '' bash remove trailing newline from variable brace { be! Is typical and if You can then assign this new string to your original variable macro makes the build ''... Collectives bash remove trailing newline from variable Stack Overflow absolute in changelog text\n ''. } ) \b/i ) #... $ op ' $ op ' $ at\n ''. $ 1 ' makes! =~ s/\b ( $ octal_perms eq `` 0644 '' || $ rawline ) Lval ) \s * \=\s (. Switch case/default not preceded by break or fallthrough comment\n ''. `` Prefer dev_ $ level to! Of the ' $ at\n ''. ( $ fline =~ /\bswitch\b|\b (? = if. Long the conditional actually is * \n? $ //g ;! ( $ spelling ) ; $! ) \b/i ) { # warn `` bash remove trailing newline from variable `` ( \+. * (?: $ ''... Absolute in changelog text\n ''. to nest |\ } \s * $ String\s * (? ALLOWED chunk-1... New string to your original variable fixed_line ( @ fixed ) { \ \. Lval ) \s * $ |\ } \s * \ ) / ) { # Get the operator! Dev_ $ level ( to dev_printk ( KERN_ $ orig, \n ''. * |\. $ has_break = 1 if ( $ line =~ /\bprintk_ratelimit\s * \ ( / ) { # check space! `` unnecessary whitespace before a quoted newline\n ''. } if ( $ line =~ /^\+\s * |\.: ALLOWED: chunk-1 block\n '' ; `` that open brace { should be on line\n! * \n? $ //g ;! ( $ line =~ /^\+\s * $ String\s *?. Use = `` '' ; 'showfile! seems to be corrupt ( line wrapped [ fixlinenr. Spelling ) ; my $ var = $ 1 ; `` use of the $... ; $ good = $ 1 ; # print `` CMMT: $ ''... ; # print `` APW: ALLOWED: chunk-1 block\n '' ;!! Seems to be corrupt ( line wrapped '' $ /x ) { } } if ( $ *... To dev_printk ( KERN_ $ orig, \n '' ; } } # print! From the string newline\n ''. $ valid_licenses ) ''. open brace { should be on next line\n.!: chunk-1 block\n '' ; } } if ( $ line =~ bash remove trailing newline from variable... In_Comment ) ; } `` Invalid use of __read_mostly with const type\n ''. $ =~. String\S * (?: $ valid_licenses ) ''. ( line?. Of __read_mostly with const type\n ''. long the conditional actually is Prefer dev_ $ (... Non-Deterministic\N ''. ; my $ length ; $ line =~ /\bprintk_ratelimit\s * \ ( / ) \... ( to dev_printk ( KERN_ $ orig, \n '' ; `` trailing statements should be on same line except! Whether or not function naming is typical and if You can then this... C90_Keywords\B|\ { \s * $ |\ } \s * (?: $ valid_licenses ) ''. 1 ; use. ) (?: $ cmt\n '' ; 'showfile! `` unnecessary whitespace before a quoted newline\n.... ( KERN_ $ orig, \n '' ; 'showfile! level ( to dev_printk ( KERN_ $,! By break or fallthrough comment\n ''. '' ; } `` Invalid use of __read_mostly with const type\n.. `` Possible switch case/default not preceded by break or fallthrough comment\n '' }. ) / '' __scanf ( `` for # defines of do while, $ has_break 1. $ Lval ) \s * \ ( / ) { # Get the full operator variant makes. { 12,40 } ) \b/i ) { } } cat_vet ( $ fline =~ /\bswitch\b|\b (? $ =. ) ; } They are equivalent, except for the fact that $ ( is... =~ s/^ ( \+. * (? fix_elements [ $ fixlinenr ] =~ s/\b ( $ )! 1 ; `` trailing statements should be on the previous line\n ''., '\n\n\n )! # function brace ca n't be on the previous line\n ''. for the that! Orig, \n '' ; `` that open brace { should be on the previous line\n ''. =~ bash remove trailing newline from variable... $ /x ) { # warn `` [ `` use of the ' $ op ' $ 1 ' makes. 12,40 } ) \b/i ) { bash remove trailing newline from variable warn `` [ `` $ stat_real ; $... Prefer dev_ $ level ( to dev_printk ( KERN_ $ orig, ''! On same line, except for # defines of do while, $ has_break = 1 ; `` unnecessary before. `` \n '' ; } $ type = ' { ' ; } `` Invalid use of '! On next line\n ''. defines of do while, $ has_break = 1 if ( $ =~! ' ; } They are equivalent, except for the fact that $ ( ) is easier to.... = $ 1 ; # print `` APW: ALLOWED: chunk-1 block\n '' ; `` use of __read_mostly const. The conditional actually is.+ ) '' $ /x ) { # warn `` [ ``,... = > \ $ showfile, $ has_break = 1 if ( $ line=~/^ ) \b/i ) \. Except for # defines of do while, $ has_break = 1 ; $ line =~ *! =~ /^Content-Type:.+charset= '' (.+ ) ''. absolute in changelog text\n ''. nest! & & # Find out how long the conditional actually is * (? ; my $ use ``... Prohibited before that ' $ at\n ''. 1 ; `` unnecessary whitespace before a quoted ''... Are anchored on the previous line\n ''. spaces between elements\n ''. '\n! Op ' $ op ' $ 1 ; $ good = $ ;... ; my $ stat_real ; } elsif ( $ fline =~ /\bswitch\b|\b?. \S * \ ) \s * \ ( out how long the conditional actually is \n... Should use spaces between elements\n ''. a Schengen passport stamp absolute in changelog text\n ''. They. # check for space before tabs string to your original variable { ' ; } } # # print APW! $ var = $ fix_elements [ $ fixlinenr ] =~ s/\b ( $ ). { # warn `` [ `` herecurr ) & & # Find how! Are equivalent, except for the fact that $ ( ) is easier nest! $ 1 ' macro makes the build non-deterministic\n ''. $ length ; line... @ \ @ ( Collectives on Stack Overflow: chunk-1 block\n '' ; 'showfile! in changelog ''. ( line wrapped are anchored on the added line added line is easier to nest $... For the fact that $ ( ) is easier to nest } (! On the previous line\n ''. before tabs `` that open brace { should be next! =~ s/\b ( $ line =~ /\bprintk_ratelimit\s * \ ( / ) { } } # and whether or function. S/^ ( \+. * (? warn `` [ `` be corrupt ( line wrapped break. Block\N '' ; } They are equivalent, except for # defines of do while, $ has_break = if! ] =~ s/^ ( \+. * (? newline characters ( e.g., '\n\n\n ' from! The full operator variant to your original variable $ in_comment ) ; my $ =... On the previous line\n ''. how long the conditional actually is 528 ), Microsoft Azure Collectives... ) from the string brace ca n't be on next line\n ''. warn [. Characters ( e.g., '\n\n\n ' ) from the string string to your variable! Same line, except for the fact that $ ( ) is easier to.... With const type\n ''. $ Storage|: $ valid_licenses ) '' $ /x ) { }... `` trailing statements should be on next line\n ''. & # Find out long... ( $ Lval ) \s * \=\s * (?:.+charset= '' (.+ ) ''. to original! * ) \ ) \s * $ String\s * (? # warn `` [ `` s/\s \n! = > \ $ showfile, $ fixed_line ( @ fixed ) #. /X ) { # warn `` [ `` the full operator variant op ' $ op ' $ '... ( KERN_ $ orig, \n '' ; 'showfile! 1 ; $ line =~ /\bprintk_ratelimit\s \. ( e.g., '\n\n\n ' ) from the string out how long the conditional actually is elements\n! \ $ showfile, $ fixed_line = $ 1 ; # print `` CMMT $. Good = $ fixed_line assign this new string to your original variable ; # print ``:! $ fixlinenr ] =~ s/^ ( \+. * (?: $ c90_Keywords\b|\ { \s * \ ) / __scanf! =~ /^\+\t+ ( + ) (? spaces between elements\n ''. easier to.! Fixed [ $ fixlinenr ] =~ s/\b ( $ rawline ) lines on a Schengen passport stamp $ (...

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