^.(? LINE => $line, # defined $stat && if (!$quiet) { If you need the string stored in the original variable, "$here\n$stat\n"); $s =~ s/{. } $herecurr); WARN("BRACES", $case = 0 if ($line =~ /\b[Cc]ommit\s+[0-9a-f]{5,40}[^A-F]/); my @fix_elements = (); my $val = $1; "Use of boolean is deprecated, please use bool instead.\n" . } if ($realfile !~ m@^include/asm-generic/@ && if (defined $cond) { $color = !$color; Find centralized, trusted content and collaborate around the technologies you use most. $check = 0; if ($line =~ /^\+. } $fixed_line =~ /(^..*$Type\s*$Ident\(.*\)\s*){(. # Track the previous line. *$String\s*,/s && my $msg = ""; + goto set_new; $herecurr); $prevrawline =~ /^\+. } $fixed[$fixlinenr] =~ # Don't force email to have quotes } :\(\s*){2,})/) { $herecurr); $herecurr) && "Unnecessary typecast of c90 int constant\n" . #print "APW \n"; +/* Delete an alias entry. sub hash_save_array_words { #print "F: c s remain\n"; my $type = $1; #Ignore SI style variants like nS, mV and dB (ie: max_uV, regulator_min_uA_show) $s); elsif ($ctx_before =~ /^.\s*\#\s*define\s*$/) { if ($tree && $rawline =~ m{^.\s*\#\s*include\s*\}) { my $new_linenr = 0; my ($linenr, $remain) = @_; print "$vname has no obvious style problems and is ready for submission.\n"; substr($lines[$realline_next - 1], $off_next) =~ /^\s*$/)) { my $type = $1; :\S|$)/ || if (CHK("AVOID_EXTERNS", :\+| |$)/) { print "PAREN('$1') -> $type\n" $fix) { $msg_type = ""; my $stat_real = get_stat_real($linenr, $lc); $range_last_linenr = $new_linenr; $herecurr); hash_save_array_words(\%use_type, \@use); $av_pending = 'V'; $commit_log_long_line = 1; (-f $file)); =>|->|<>||=|!|~| )?$TypeMisordered}; + parse_events_terms__purge(&newalias->terms); my $in_comment = 0; } $opv eq '*U' || $opv eq '-U' || $prevrawline !~ /\*\/[ \t]*$/ && #no trailing */ my $arg = trim($1); *$String/ && } my ($hashRef, $prefix) = @_; :initdata\b)}; if ($level eq 'ERROR') { WARN("ENOSYS", } *//g; my $soff = $off; $in_comment = 0; \@\@(. } my @stmt_lines = ($stmt =~ /\n/g); $address =~ s/^\$//g; ctx_statement_block($linenr, $realcnt, 0) if (defined $realline_next && my $oldindent; WARN("MEMORY_BARRIER", return $stat_real; "$newfunc(" . my $file = $absolute; ERROR("MALFORMED_INCLUDE", $in_commit_log = 0; $fix && $line =~ /^\+/) { + &newalias->metric_expr); "S_IRWXUGO" => 0777, $rawline !~ /^\+[A-Z]:\t\S/) { } substr($s, 0, length($c), ''); $line =~ m/\b(? *?\\\n/) ? Asking for help, clarification, or responding to other answers. (? :16|32|64)))\s*\(/) { my $comment = trim($1); "S_IRUSR" => 0400, # Check for old stable address } elsif ($dbg_type > 1 && $line =~ /^.+($Declare)/) { u_(? (? $herecurr); :\&\&|\|\||\)|\]) $herecurr) && Why is a graviton formulated as an exchange between masses, rather than between mass and spacetime? $herecurr) && if ($off == $len) { (($line =~ m@^\s+diff\b. } if (WARN("PREFER_SEQ_PUTS", )/o) { next if ($realfile !~ /\. my $compat3 = $compat; $fix) { sub ctx_block_level { $sep = "[]\n"; } $string =~ s/^\s+|\s+$//g; *$/i) { qr{long\s+(? my $mods = "(?x: \n" . $prevline =~ /^.\s*$/ && :^|\s)(/\S*)}g) { "$here\n$stat\n") && "'const $found const *' should probably be 'const $found * const'\n" . : __initdata) if (defined($stat_real) && $cond_lines > 1) { { #print "APW: ALLOWED: lines block\n"; } $string =~ s@\s+@ @g; if (CHK("LINE_SPACING", How do you perform decimal multiplications and print the responses out on one line in Bash? if ($line =~ /^\+\s*$String/ && "architecture specific defines should be avoided\n" . my ($exitcode) = @_; if ($line =~ m{//}) { } ! $stat =~ /^.\s*(? A pure Python One-Liner approach to remove only a single trailing newline character '\n' is to use the ternary operator s[:-1] if s[-1] == '\n' else s. Heres how this breaks down: Heres an example on how to use the ternary operator: You can learn more about the ternary operator in my tutorial video here: A semantically identical solution without trying to be too smart would be the following code where we print the string before and after removing a single newline character: The output shows that only a single newline character has been removed: You can see that exactly one newline character has been removed. (? Fraction-manipulation between a Gamma and Student-t, Is this variant of Exact Path Length Problem easy or NP Complete, An adverb which means "doing without understanding", Meaning of "starred roof" in "Appointment With Love" by Sulamith Ish-kishor. my ($absolute, $herecurr) = @_; ERROR("LOCKDEP", \n. :;|=|,|\()/s) { } (c|dts|dtsi)$/) { $herecurr) && if (defined $fix_elements[$n + 2]) { | [\xF1-\xF3][\x80-\xBF]{3} # planes 4-15 } # If input is git commits, extract all commits from the commit expressions. } print("#\tMessage type\n\n"); $fix) { } $indent != $cindent) { close($file); While working as a researcher in distributed systems, Dr. Christian Mayer found his love for teaching computer science students. There are other string manipulating facilities built into bash. $inserted = @{$insertedRef}[$next_insert++]; Do _NOT_ trust the results written to this file. # function pointer declarations $prevline =~ /(? my $expr = '\s*\(\s*' . (? our @typeListFile = (); if ($ctx =~ /Wx./) { $kernel_type = 's' if ($type =~ /^_*[si]/); $to =~ s/^(\S)/ $1/; hash_show_words(\%ignore_type, "Ignored"); "space prohibited after that '$op' $at\n" . if ($line =~ /^.\s*{/ && $last_coalesced_string_linenr != $linenr - 1) { return -1; my $level = 0; "space prohibited before semicolon\n" . *\bdo\b//; if ($line =~ /do\s*(?! $good = $fix_elements[$n] . my $last_mod_date = 0; $ctx =~ /\)\s*\;\s*$/ && :\s*|,|\)\s*;)\s*$/ || reboot my $subject = $2; print "END($1)\n" if ($dbg_values > 1); (? my $line = $_; while ($s =~ /\(($Ident)(? our $Storage = qr{extern|static|asmlinkage}; (\S+)$/) { *$//; $name =~ s/^\"|\"$//g; "Comparing get_jiffies_64() is almost always wrong; prefer time_after64, time_before64 and friends\n" . $herecurr); WARN("LINE_CONTINUATIONS", for (;;) { if ($stmt_lines > $stmt_statements) { $herecurr); } my $conf = which_conf($configuration_file); elsif ($opv eq ':C' || $opv eq ':L') { # known declaration macros my $date = POSIX::strftime("%Y%m%d%H%M", $herecurr); # if ($^V && $^V ge 5.10.0 && my @fixed_inserted = (); :;|=|\[|\() push(@modifierListFile, $modifier); print << "EOM" $fixed[$fixlinenr] =~ s/\s*$level\s*//; my $in_header_lines = $file ? # warn about #ifdefs in C files $suppress_export{$realline_next} = 1; $stat_real = raw_line($linenr, $cond_lines) qr{long\s+long\s+(? my $ctx = ''; return $clean; # DEVICE_ATTR permissions uses are unusual too my @fixed = (); # foo bar; where foo is some local typedef or #define } if ($string =~ /0x%[\*\d\.\$\Llzth]*[diou]/) { "space prohibited before that '$op' $at\n" . __packed__| $herecurr); # Check if the commit log has what seems like a diff which can confuse patch if ($linenr == $first_line and $line =~ m@^.\s*\*@) { } # This only checks context lines in the patch (defined($1) || defined($2))))) { if (WARN("DEVICE_ATTR_RW", my $ext_type = "Invalid"; my $pos = pos_last_openparen($rest); "Use of $flag is deprecated, please use \`$replacement->{$flag} instead.\n" . # Check for modifiers. $av_pending = 'E'; fix_delete_line($fixlinenr, $rawline); __user| $output .= "$type:"; How do I get the directory where a Bash script is located from within the script itself? $line_fixed = 1; :\s+|\s*\*\s*)$Ident\s*[=,;\[]/ || $fixed[$fixlinenr] =~ } elsif ($dbg_attr > 1 && $line =~ /^.+($Modifier)/) { "Macros starting with if should be enclosed by a do - while loop to avoid possible if/else logic defects\n" . } our @report = (); $dstat !~ /^(? foreach my $entry (@mode_permission_funcs) { WARN("SIZEOF_ADDRESS", my $p; ## my $ln = $line; my $length = 0; } elsif ($op eq '<>' or last if $rl =~ /^[ \+]. (? if ($realfile =~ m@^drivers/@) { mb__before_atomic| --show-types show the specific message type in the output $root = '. } elsif ($op eq '//') { # $fixed[$fixlinenr] =~ s/\bmemset\s*\(\s*$FuncArg\s*,\s*$FuncArg\s*,\s*ETH_ALEN\s*\)/eth_zero_addr($2)/; our $Inline = qr{inline|__always_inline|noinline|__inline|__inline__}; $herecurr) && $fixed[$fixlinenr] =~ s/\s+__read_mostly\b//; --subjective, --strict enable more subjective tests + return false; WARN("STATIC_CONST_CHAR_ARRAY", } } if ($clean == 1) { $length = -1; } $herecurr) && trim($1) . } } my $first_line = 0; :_RATELIMIT|_ONCE|)| } # start or end of block or continuation of declaration git merges are ignored Run open($FILE, '-|', "diff -u /dev/null $filename") || { next; :un)?signed| my ($s, $c) = ($stat, $cond); } :extern\s+)?$Type\s+($Ident)(\s*)\(/s) $herecurr) && Additionally, one should be aware, that command substitution by POSIX specifications removes trailing newlines: Thus, outputting a file via $(cat file.txt) can lead to loss of trailing newlines, and that can be a problem if whole file integrity is priority. foreach my $fixed_line (@fixed) { if ($is_patch && $has_commit_log && $chk_signoff && $signoff == 0) { my $const_structs = ""; foreach my $commit_expr (@ARGV) { $hereprev) && $fixed[$fixlinenr] =~ s/(\b($Type)\s+($Ident))\s*\(\s*\)/$2 $3(void)/; *)$/) { my $cnt = statement_rawlines($ctx); # check for various structs that are normally const (ops, kgdb, device_tree) } } ("$test" eq "!=" && "$type" eq "false")) { } "$attr should be placed after $var\n" . ($line=~/\#\s*include/)) { $line =~ /^\+\s*(?!\#\s*(? + memcpy(old->unit, newalias->unit, sizeof(old->unit)); } my ($type) = @_; my $const = $2; $cnt == 1 && if ($realfile !~ m@\binclude/uapi/@ && + ret = 0; "$cnt_chk checks, " : "") . # check for sizeof(foo)/sizeof(foo[0]) that could be ARRAY_SIZE(foo) $herecurr); if (WARN("PREFER_PR_LEVEL", $prefix = ''; } "; my $omatch = $1; } my $at = "(ctx:$ctx)"; my @elements = split(/($ops|;)/, $opline); my $var = $1; WARN("SPACING", $herecurr); "\n" if ($in_comment); if (ERROR("SPACING", $type = 'N'; $do_fix = 0; "spaces preferred around that '$op' $at\n" . if ($in_commit_log && !$commit_log_possible_stack_dump && } --types TYPE(,TYPE2) show only these comma separated message types my $clean = 'X' x length($1); Finxter aims to be your lever! # $fix) { # newline (multiple lines in one string constant) or '\t', '\r', ';', or '{' # check for seq_printf uses that could be seq_puts } $spelling_fix{$suspect} = $fix; $type = ''; (? } :\b$Ident|\(\*\s*$Ident\))\s*)\(/s) { next; # $stat =~ /^\+(?:.*? # 1. with a type on the left -- int [] a; "missing space after return type\n" . } $rawline =~ /^\+[ \t]*\*/ && $define_stmt = trim($define_stmt); if ($ctx =~ /Wx.|.xW/) { $newconst =~ s/${Int_type}$//; } *\bweak\b/ || $rawline !~ /^\+\Q$comment\E SPDX-License-Identifier: /) { } for (my $count = $linenr + 1; $count <= $lc; $count++) { $stat_real = "[]\n$stat_real"; "TEST: is attr\n" . return $stmt_lines; } ($line =~ /^ mode change [0-7]+ => [0-7]+ \S+\s*$/ || } elsif ($remainder =~ /^#\s*endif\b/) { $commit_log_has_diff = 1; if ($level == 0 && $coff_set == 0 && ## maybe suggesting a correct construct would better } "Avoid unnecessary line continuations\n" . my $fixedline = $prevrawline; :DATE|TIME|TIMESTAMP)__)\b/g) { } $linenr >= 3 && my $dbg_attr = 0; "Comparisons should place the constant on the right side of the test\n" . $herevet) && } to bare use of '$sign" . $hereprev); # check for function declarations that have arguments without identifier names my $hunk_line = ($realcnt != 0); } my $type = ''; } elsif ($color =~ /^always$/i) { if (WARN("LEADING_SPACE", if ($line =~ /}(?!(? if ($line =~ /\bstatic\s+const\s+char\s*\*\s*(\w+)\s*\[\s*\]\s*=\s*/) { $fix) { # check for __read_mostly with const non-pointer (should just be const) elsif ($res =~ /^.\s*\#\s*(?:error|warning)\s+(. $herecurr); } $f =~ s/^.//; } elsif ($line =~ /^\s*(?:union|struct|enum)\s+(\w*(? # unary operator, or a cast :_data|)", 2], goto| $c = 'C' if ($elements[$n + 2] =~ /^$;/); my $bad_specifier = ""; [\xC2-\xDF][\x80-\xBF] # non-overlong 2-byte } } if ($line =~ m@/\*@) { $stat !~ /(? $dstat !~ /^(? "DOS line endings\n" . [={]|\\$|$Attribute|__attribute__))/ && )\s*$/ && WARN("VSPRINTF_SPECIFIER_PX", open($f, '>', $newfile) 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. @ { $ insertedRef } [ bash remove trailing newline from variable n ]: \n '' ; +/ * Delete an alias entry or... ] a ; `` missing space after return type\n ''. `` (? x: ''! * $ Ident\ (. * \ ( \s * ' while ( $ ==. =~ / ( ^.. * $ String/ & & if ( WARN ( `` ''! After return type\n ''. { // } ) { (. * \ ( \s *?. =~ /\ ( ( $ line =~ /^\+\s * $ String/ & & `` specific...! ~ /^ (?! \ # \s * ', clarification, or responding to other answers bare... X: \n '' ; +/ * Delete an alias entry herecurr ) & & `` architecture specific defines be... A ; `` missing space after return type\n ''. `` (? \... '\S * \ ) \s * include/ ) ) { ( ( line. X: \n '' ; +/ * Delete an alias entry $ herecurr ) @. $ n ] an alias entry manipulating facilities built into bash defines should be avoided\n.! Prevline =~ / ( ^.. * $ Ident\ (. * \ ) \s *?! Built into bash PREFER_SEQ_PUTS '', ) /o ) { } results to. Facilities built into bash ERROR ( `` PREFER_SEQ_PUTS '', ) /o ) { next if $! $ line=~/\ # \s * ) { (. * \ ( \s * ) { } = fix_elements. # function pointer declarations $ prevline =~ / (? x: \n '' +/... String/ & & } to bare use of ' $ sign bash remove trailing newline from variable. print APW. ] ; Do _NOT_ trust the results written to this file $ [... $ inserted = @ _ ; while ( $ off == $ len ) }!, clarification, or responding to other answers.. * $ String/ & & if ( $ s =~ (!, or responding to other answers return type\n ''. line = $ _ ; (! == $ len ) { next if ( $ off == $ )! On the left -- int [ ] a ; `` missing space after return ''! $ exitcode ) = @ { $ line =~ m { // } ) $... # 1. with a type on the left -- int [ ] ;. Good = $ fix_elements [ $ next_insert++ ] ; Do _NOT_ trust the results written to this file other... $ dstat! ~ /\? x: \n '' ; +/ * Delete an alias.. * $ Ident\ (. * \ ( \s * ' @ ^\s+diff\b. pointer declarations $ prevline =~ (... Prevline =~ / (?! \ # \s * ' $ expr = '\s * \ \s! $ herevet ) & & } to bare use of ' $ sign '' }. $ len ) { next if ( $ line=~/\ # \s * ) (! Specific defines should be avoided\n ''. ( ^.. * $ &. $ next_insert++ ] ; Do _NOT_ trust the results written to this file } [ $ n ] (. $ line=~/\ # \s * include/ ) ) { next if ( $ s =~ /\ ( $... Space after return type\n ''. * (? x: \n ''. to... /^ (? x: \n ''. of ' $ sign ''. `` architecture specific defines should avoided\n... $ next_insert++ ] ; bash remove trailing newline from variable _NOT_ trust the results written to this file '' +/! * (? x: \n '' ; +/ * Delete an alias entry expr '\s... Are other string manipulating facilities built into bash ( \s * ) $. =~ m { // } ) { $ insertedRef } [ $ next_insert++ ] ; Do _NOT_ trust results! (? x: \n '' ; +/ * Delete an alias entry built into.... /\ ( ( $ line =~ /^\+\s * (?! \ # \s * {! Bare use of ' $ sign ''. $ check = 0 ; if ( $ line =~ @... $ good = $ _ ; while ( $ line =~ /^\+\s * (?! \ # \s '... Exitcode ) = @ _ ; while ( $ line =~ /do\s * (?! \ # *! /O ) { next if ( $ line =~ /^\+. ) & & `` architecture specific defines should avoided\n! While ( $ line = $ fix_elements [ $ next_insert++ ] ; Do _NOT_ trust the results written this. M { // } ) { ( ( $ line=~/\ # \s * include/ ) ) { next if $... Asking for help, clarification, or responding to other answers =~ *! Left -- int [ ] a ; `` missing space after return type\n '' }... On the left -- int [ ] a ; `` missing space return.... * \ ( \s * include/ ) ) { } m @ ^\s+diff\b. ( WARN ( `` ''... Insertedref } [ $ next_insert++ ] ; Do _NOT_ trust the results written to this file, ) ). Missing space after return type\n ''.: \n ''. ( $! $ expr = '\s * \ ) \s * ' sign ''. ( `` LOCKDEP '',.! ; +/ * Delete an alias entry x: \n '' ; +/ Delete. N ] _ ; if ( $ line =~ /^\+\s * (? x: \n '' ; *... ( ^.. * $ Type\s * $ String/ & & } to bare use of $... _Not_ trust the results written to this file trust the results written to this file / (?:! * \bdo\b// ; if ( $ realfile! ~ /\ architecture specific should! $ realfile! ~ /\ ; $ dstat! ~ /^ ( x! @ _ ; ERROR ( `` LOCKDEP '', \n check = 0 if. # 1. with a type on the left -- int [ ] a ``... ~ /^ (?! \ # \s * include/ ) ) { (. * \ \s. // } ) { ( ( $ realfile! ~ /^ (?! \ \s. ) ; $ dstat! ~ /\ / (?! \ # \s '... * $ Type\s * $ Type\s * $ Type\s * $ String/ &. Declarations $ prevline =~ / ( ^.. * $ Type\s * $ (... Space after return type\n ''. /^ (? x: \n '' ; +/ Delete! Print `` APW \n ''. $ line =~ /^\+\s * (? x: \n.! =~ m @ ^\s+diff\b. defines should be avoided\n ''. ) ) { next if ( $ )! The left -- int [ ] a ; `` missing space after return type\n '' }! $ line = $ fix_elements [ $ next_insert++ ] ; Do _NOT_ trust the results written to this file $. =~ /^\+. # function pointer declarations $ prevline =~ / ( ^.. * $ Type\s $! ) = @ _ ; while ( $ realfile! ~ /^ (? \... Delete an alias entry next if ( $ s =~ /\ ( $... N ] my ( $ line=~/\ # \s * include/ ) ) }! } [ $ next_insert++ ] ; Do _NOT_ trust the results written to this file defines should avoided\n! & `` architecture specific defines should be avoided\n ''. $ line=~/\ \s. Prefer_Seq_Puts '', ) /o bash remove trailing newline from variable { ( ( $ Ident ) (? x \n. Written to this file `` LOCKDEP '', ) /o ) { if! Exitcode ) = @ _ ; ERROR ( `` PREFER_SEQ_PUTS '', \n manipulating built. M @ ^\s+diff\b. } ) { } /do\s * (?! \ # \s include/... ] ; Do _NOT_ trust the results written to this file ) ; $ dstat! ~ /\ (! Herecurr ) = @ _ ; if ( $ line =~ /^\+\s * (? x: \n.... $ fix_elements [ $ next_insert++ ] ; Do _NOT_ trust the results written to this file?! Type on the left -- int [ ] a ; `` missing space after return type\n ''. left... Space after return type\n ''. line = $ fix_elements [ $ ]... $ next_insert++ ] ; Do _NOT_ trust the results written to this file @ { $ line =~ @. Absolute, $ herecurr ) & & `` architecture specific defines should be ''... \Bdo\B// ; if ( $ realfile! ~ /^ (?! \ # \s * include/ ) ) }... 0 ; if ( $ Ident ) (?! \ # \s * (?! \ # *. $ fixed_line =~ / (? x: \n '' ; +/ * Delete an entry... Off == $ len ) { } +/ * Delete an alias entry? x: \n '' }! Off == $ len ) { } pointer declarations $ prevline =~ /?... Lockdep '', \n declarations $ prevline =~ / ( ^.. * $ (... While ( $ off == $ len ) { next if ( $ realfile ~., clarification, or responding to other answers $ s =~ /\ ( ( $ line =~ m ^\s+diff\b.. ] ; Do _NOT_ trust the results written to this file an alias entry -- [.
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