#!/usr/bin/env perl
+# SPDX-License-Identifier: GPL-2.0
use warnings;
use strict;
use constant {
STATE_NORMAL => 0, # normal code
STATE_NAME => 1, # looking for function name
- STATE_FIELD => 2, # scanning field start
- STATE_PROTO => 3, # scanning prototype
- STATE_DOCBLOCK => 4, # documentation block
- STATE_INLINE => 5, # gathering documentation outside main block
+ STATE_BODY_MAYBE => 2, # body - or maybe more description
+ STATE_BODY => 3, # the body of the comment
+ STATE_PROTO => 4, # scanning prototype
+ STATE_DOCBLOCK => 5, # documentation block
+ STATE_INLINE => 6, # gathering documentation outside main block
};
my $state;
my $in_doc_sect;
+my $leading_space;
# Inline documentation state
use constant {
my $doc_content = $doc_com_body . '(.*)';
my $doc_block = $doc_com . 'DOC:\s*(.*)?';
my $doc_inline_start = '^\s*/\*\*\s*$';
-my $doc_inline_sect = '\s*\*\s*(@[\w\s]+):(.*)';
+my $doc_inline_sect = '\s*\*\s*(@\s*[\w][\w\.]*\s*):(.*)';
my $doc_inline_end = '^\s*\*/\s*$';
my $doc_inline_oneline = '^\s*/\*\*\s*(@[\w\s]+):\s*(.*)\s*\*/\s*$';
my $export_symbol = '^\s*EXPORT_SYMBOL(_GPL)?\s*\(\s*(\w+)\s*\)\s*;';
}
if ($line eq ""){
if (! $output_preformatted) {
- print $lineprefix, local_unescape($blankline);
+ print $lineprefix, $blankline;
}
} else {
- $line =~ s/\\\\\\/\&/g;
if ($output_mode eq "man" && substr($line, 0, 1) eq ".") {
print "\\&$line";
} else {
}
}
-sub output_highlight_rst {
- my $contents = join "\n",@_;
- my $line;
-
- # undo the evil effects of xml_escape() earlier
- $contents = xml_unescape($contents);
-
+#
+# Apply the RST highlights to a sub-block of text.
+#
+sub highlight_block($) {
+ # The dohighlight kludge requires the text be called $contents
+ my $contents = shift;
eval $dohighlight;
die $@ if $@;
+ return $contents;
+}
- foreach $line (split "\n", $contents) {
+#
+# Regexes used only here.
+#
+my $sphinx_literal = '^[^.].*::$';
+my $sphinx_cblock = '^\.\.\ +code-block::';
+
+sub output_highlight_rst {
+ my $input = join "\n",@_;
+ my $output = "";
+ my $line;
+ my $in_literal = 0;
+ my $litprefix;
+ my $block = "";
+
+ foreach $line (split "\n",$input) {
+ #
+ # If we're in a literal block, see if we should drop out
+ # of it. Otherwise pass the line straight through unmunged.
+ #
+ if ($in_literal) {
+ if (! ($line =~ /^\s*$/)) {
+ #
+ # If this is the first non-blank line in a literal
+ # block we need to figure out what the proper indent is.
+ #
+ if ($litprefix eq "") {
+ $line =~ /^(\s*)/;
+ $litprefix = '^' . $1;
+ $output .= $line . "\n";
+ } elsif (! ($line =~ /$litprefix/)) {
+ $in_literal = 0;
+ } else {
+ $output .= $line . "\n";
+ }
+ } else {
+ $output .= $line . "\n";
+ }
+ }
+ #
+ # Not in a literal block (or just dropped out)
+ #
+ if (! $in_literal) {
+ $block .= $line . "\n";
+ if (($line =~ /$sphinx_literal/) || ($line =~ /$sphinx_cblock/)) {
+ $in_literal = 1;
+ $litprefix = "";
+ $output .= highlight_block($block);
+ $block = ""
+ }
+ }
+ }
+
+ if ($block) {
+ $output .= highlight_block($block);
+ }
+ foreach $line (split "\n", $output) {
print $lineprefix . $line . "\n";
}
}
# Handle bitmaps
$arg =~ s/:\s*\d+\s*//g;
# Handle arrays
- $arg =~ s/\[\S+\]//g;
+ $arg =~ s/\[.*\]//g;
# The type may have multiple words,
# and multiple IDs can be defined, like:
# const struct foo, *bar, foobar
}
}
- $param = xml_escape($param);
-
# strip spaces from $param so that it is one continuous string
# on @parameterlist;
# this fixes a problem where check_sections() cannot find
$prototype =~ s/__meminit +//;
$prototype =~ s/__must_check +//;
$prototype =~ s/__weak +//;
+ $prototype =~ s/__sched +//;
my $define = $prototype =~ s/^#\s*define\s+//; #ak added
$prototype =~ s/__attribute__\s*\(\(
(?:
}
}
-# xml_escape: replace <, >, and & in the text stream;
-#
-# however, formatting controls that are generated internally/locally in the
-# kernel-doc script are not escaped here; instead, they begin life like
-# $blankline_html (4 of '\' followed by a mnemonic + ':'), then these strings
-# are converted to their mnemonic-expected output, without the 4 * '\' & ':',
-# just before actual output; (this is done by local_unescape())
-sub xml_escape($) {
- my $text = shift;
- if ($output_mode eq "man") {
- return $text;
- }
- $text =~ s/\&/\\\\\\amp;/g;
- $text =~ s/\</\\\\\\lt;/g;
- $text =~ s/\>/\\\\\\gt;/g;
- return $text;
-}
-
-# xml_unescape: reverse the effects of xml_escape
-sub xml_unescape($) {
- my $text = shift;
- if ($output_mode eq "man") {
- return $text;
- }
- $text =~ s/\\\\\\amp;/\&/g;
- $text =~ s/\\\\\\lt;/</g;
- $text =~ s/\\\\\\gt;/>/g;
- return $text;
-}
-
-# convert local escape strings to html
-# local escape strings look like: '\\\\menmonic:' (that's 4 backslashes)
-sub local_unescape($) {
- my $text = shift;
- if ($output_mode eq "man") {
- return $text;
- }
- $text =~ s/\\\\\\\\lt:/</g;
- $text =~ s/\\\\\\\\gt:/>/g;
- return $text;
-}
sub map_filename($) {
my $file;
close(IN);
}
-sub process_file($) {
- my $file;
+#
+# Parsers for the various processing states.
+#
+# STATE_NORMAL: looking for the /** to begin everything.
+#
+sub process_normal() {
+ if (/$doc_start/o) {
+ $state = STATE_NAME; # next line is always the function name
+ $in_doc_sect = 0;
+ $declaration_start_line = $. + 1;
+ }
+}
+
+#
+# STATE_NAME: Looking for the "name - description" line
+#
+sub process_name($$) {
+ my $file = shift;
my $identifier;
- my $func;
my $descr;
- my $in_purpose = 0;
+
+ if (/$doc_block/o) {
+ $state = STATE_DOCBLOCK;
+ $contents = "";
+ $new_start_line = $. + 1;
+
+ if ( $1 eq "" ) {
+ $section = $section_intro;
+ } else {
+ $section = $1;
+ }
+ }
+ elsif (/$doc_decl/o) {
+ $identifier = $1;
+ if (/\s*([\w\s]+?)(\(\))?\s*-/) {
+ $identifier = $1;
+ }
+
+ $state = STATE_BODY;
+ # if there's no @param blocks need to set up default section
+ # here
+ $contents = "";
+ $section = $section_default;
+ $new_start_line = $. + 1;
+ if (/-(.*)/) {
+ # strip leading/trailing/multiple spaces
+ $descr= $1;
+ $descr =~ s/^\s*//;
+ $descr =~ s/\s*$//;
+ $descr =~ s/\s+/ /g;
+ $declaration_purpose = $descr;
+ $state = STATE_BODY_MAYBE;
+ } else {
+ $declaration_purpose = "";
+ }
+
+ if (($declaration_purpose eq "") && $verbose) {
+ print STDERR "${file}:$.: warning: missing initial short description on line:\n";
+ print STDERR $_;
+ ++$warnings;
+ }
+
+ if ($identifier =~ m/^struct/) {
+ $decl_type = 'struct';
+ } elsif ($identifier =~ m/^union/) {
+ $decl_type = 'union';
+ } elsif ($identifier =~ m/^enum/) {
+ $decl_type = 'enum';
+ } elsif ($identifier =~ m/^typedef/) {
+ $decl_type = 'typedef';
+ } else {
+ $decl_type = 'function';
+ }
+
+ if ($verbose) {
+ print STDERR "${file}:$.: info: Scanning doc for $identifier\n";
+ }
+ } else {
+ print STDERR "${file}:$.: warning: Cannot understand $_ on line $.",
+ " - I thought it was a doc line\n";
+ ++$warnings;
+ $state = STATE_NORMAL;
+ }
+}
+
+
+#
+# STATE_BODY and STATE_BODY_MAYBE: the bulk of a kerneldoc comment.
+#
+sub process_body($$) {
+ my $file = shift;
+
+ if (/$doc_sect/i) { # case insensitive for supported section names
+ $newsection = $1;
+ $newcontents = $2;
+
+ # map the supported section names to the canonical names
+ if ($newsection =~ m/^description$/i) {
+ $newsection = $section_default;
+ } elsif ($newsection =~ m/^context$/i) {
+ $newsection = $section_context;
+ } elsif ($newsection =~ m/^returns?$/i) {
+ $newsection = $section_return;
+ } elsif ($newsection =~ m/^\@return$/) {
+ # special: @return is a section, not a param description
+ $newsection = $section_return;
+ }
+
+ if (($contents ne "") && ($contents ne "\n")) {
+ if (!$in_doc_sect && $verbose) {
+ print STDERR "${file}:$.: warning: contents before sections\n";
+ ++$warnings;
+ }
+ dump_section($file, $section, $contents);
+ $section = $section_default;
+ }
+
+ $in_doc_sect = 1;
+ $state = STATE_BODY;
+ $contents = $newcontents;
+ $new_start_line = $.;
+ while (substr($contents, 0, 1) eq " ") {
+ $contents = substr($contents, 1);
+ }
+ if ($contents ne "") {
+ $contents .= "\n";
+ }
+ $section = $newsection;
+ $leading_space = undef;
+ } elsif (/$doc_end/) {
+ if (($contents ne "") && ($contents ne "\n")) {
+ dump_section($file, $section, $contents);
+ $section = $section_default;
+ $contents = "";
+ }
+ # look for doc_com + <text> + doc_end:
+ if ($_ =~ m'\s*\*\s*[a-zA-Z_0-9:\.]+\*/') {
+ print STDERR "${file}:$.: warning: suspicious ending line: $_";
+ ++$warnings;
+ }
+
+ $prototype = "";
+ $state = STATE_PROTO;
+ $brcount = 0;
+ } elsif (/$doc_content/) {
+ # miguel-style comment kludge, look for blank lines after
+ # @parameter line to signify start of description
+ if ($1 eq "") {
+ if ($section =~ m/^@/ || $section eq $section_context) {
+ dump_section($file, $section, $contents);
+ $section = $section_default;
+ $contents = "";
+ $new_start_line = $.;
+ } else {
+ $contents .= "\n";
+ }
+ $state = STATE_BODY;
+ } elsif ($state == STATE_BODY_MAYBE) {
+ # Continued declaration purpose
+ chomp($declaration_purpose);
+ $declaration_purpose .= " " . $1;
+ $declaration_purpose =~ s/\s+/ /g;
+ } else {
+ my $cont = $1;
+ if ($section =~ m/^@/ || $section eq $section_context) {
+ if (!defined $leading_space) {
+ if ($cont =~ m/^(\s+)/) {
+ $leading_space = $1;
+ } else {
+ $leading_space = "";
+ }
+ }
+ $cont =~ s/^$leading_space//;
+ }
+ $contents .= $cont . "\n";
+ }
+ } else {
+ # i dont know - bad line? ignore.
+ print STDERR "${file}:$.: warning: bad line: $_";
+ ++$warnings;
+ }
+}
+
+
+#
+# STATE_PROTO: reading a function/whatever prototype.
+#
+sub process_proto($$) {
+ my $file = shift;
+
+ if (/$doc_inline_oneline/) {
+ $section = $1;
+ $contents = $2;
+ if ($contents ne "") {
+ $contents .= "\n";
+ dump_section($file, $section, $contents);
+ $section = $section_default;
+ $contents = "";
+ }
+ } elsif (/$doc_inline_start/) {
+ $state = STATE_INLINE;
+ $inline_doc_state = STATE_INLINE_NAME;
+ } elsif ($decl_type eq 'function') {
+ process_proto_function($_, $file);
+ } else {
+ process_proto_type($_, $file);
+ }
+}
+
+#
+# STATE_DOCBLOCK: within a DOC: block.
+#
+sub process_docblock($$) {
+ my $file = shift;
+
+ if (/$doc_end/) {
+ dump_doc_section($file, $section, $contents);
+ $section = $section_default;
+ $contents = "";
+ $function = "";
+ %parameterdescs = ();
+ %parametertypes = ();
+ @parameterlist = ();
+ %sections = ();
+ @sectionlist = ();
+ $prototype = "";
+ $state = STATE_NORMAL;
+ } elsif (/$doc_content/) {
+ if ( $1 eq "" ) {
+ $contents .= $blankline;
+ } else {
+ $contents .= $1 . "\n";
+ }
+ }
+}
+
+#
+# STATE_INLINE: docbook comments within a prototype.
+#
+sub process_inline($$) {
+ my $file = shift;
+
+ # First line (state 1) needs to be a @parameter
+ if ($inline_doc_state == STATE_INLINE_NAME && /$doc_inline_sect/o) {
+ $section = $1;
+ $contents = $2;
+ $new_start_line = $.;
+ if ($contents ne "") {
+ while (substr($contents, 0, 1) eq " ") {
+ $contents = substr($contents, 1);
+ }
+ $contents .= "\n";
+ }
+ $inline_doc_state = STATE_INLINE_TEXT;
+ # Documentation block end */
+ } elsif (/$doc_inline_end/) {
+ if (($contents ne "") && ($contents ne "\n")) {
+ dump_section($file, $section, $contents);
+ $section = $section_default;
+ $contents = "";
+ }
+ $state = STATE_PROTO;
+ $inline_doc_state = STATE_INLINE_NA;
+ # Regular text
+ } elsif (/$doc_content/) {
+ if ($inline_doc_state == STATE_INLINE_TEXT) {
+ $contents .= $1 . "\n";
+ # nuke leading blank lines
+ if ($contents =~ /^\s*$/) {
+ $contents = "";
+ }
+ } elsif ($inline_doc_state == STATE_INLINE_NAME) {
+ $inline_doc_state = STATE_INLINE_ERROR;
+ print STDERR "${file}:$.: warning: ";
+ print STDERR "Incorrect use of kernel-doc format: $_";
+ ++$warnings;
+ }
+ }
+}
+
+
+sub process_file($) {
+ my $file;
my $initial_section_counter = $section_counter;
my ($orig_file) = @_;
- my $leading_space;
$file = map_filename($orig_file);
}
# Replace tabs by spaces
while ($_ =~ s/\t+/' ' x (length($&) * 8 - length($`) % 8)/e) {};
+ # Hand this line to the appropriate state handler
if ($state == STATE_NORMAL) {
- if (/$doc_start/o) {
- $state = STATE_NAME; # next line is always the function name
- $in_doc_sect = 0;
- $declaration_start_line = $. + 1;
- }
- } elsif ($state == STATE_NAME) {# this line is the function name (always)
- if (/$doc_block/o) {
- $state = STATE_DOCBLOCK;
- $contents = "";
- $new_start_line = $. + 1;
-
- if ( $1 eq "" ) {
- $section = $section_intro;
- } else {
- $section = $1;
- }
- }
- elsif (/$doc_decl/o) {
- $identifier = $1;
- if (/\s*([\w\s]+?)\s*-/) {
- $identifier = $1;
- }
-
- $state = STATE_FIELD;
- # if there's no @param blocks need to set up default section
- # here
- $contents = "";
- $section = $section_default;
- $new_start_line = $. + 1;
- if (/-(.*)/) {
- # strip leading/trailing/multiple spaces
- $descr= $1;
- $descr =~ s/^\s*//;
- $descr =~ s/\s*$//;
- $descr =~ s/\s+/ /g;
- $declaration_purpose = xml_escape($descr);
- $in_purpose = 1;
- } else {
- $declaration_purpose = "";
- }
-
- if (($declaration_purpose eq "") && $verbose) {
- print STDERR "${file}:$.: warning: missing initial short description on line:\n";
- print STDERR $_;
- ++$warnings;
- }
-
- if ($identifier =~ m/^struct/) {
- $decl_type = 'struct';
- } elsif ($identifier =~ m/^union/) {
- $decl_type = 'union';
- } elsif ($identifier =~ m/^enum/) {
- $decl_type = 'enum';
- } elsif ($identifier =~ m/^typedef/) {
- $decl_type = 'typedef';
- } else {
- $decl_type = 'function';
- }
-
- if ($verbose) {
- print STDERR "${file}:$.: info: Scanning doc for $identifier\n";
- }
- } else {
- print STDERR "${file}:$.: warning: Cannot understand $_ on line $.",
- " - I thought it was a doc line\n";
- ++$warnings;
- $state = STATE_NORMAL;
- }
- } elsif ($state == STATE_FIELD) { # look for head: lines, and include content
- if (/$doc_sect/i) { # case insensitive for supported section names
- $newsection = $1;
- $newcontents = $2;
-
- # map the supported section names to the canonical names
- if ($newsection =~ m/^description$/i) {
- $newsection = $section_default;
- } elsif ($newsection =~ m/^context$/i) {
- $newsection = $section_context;
- } elsif ($newsection =~ m/^returns?$/i) {
- $newsection = $section_return;
- } elsif ($newsection =~ m/^\@return$/) {
- # special: @return is a section, not a param description
- $newsection = $section_return;
- }
-
- if (($contents ne "") && ($contents ne "\n")) {
- if (!$in_doc_sect && $verbose) {
- print STDERR "${file}:$.: warning: contents before sections\n";
- ++$warnings;
- }
- dump_section($file, $section, xml_escape($contents));
- $section = $section_default;
- }
-
- $in_doc_sect = 1;
- $in_purpose = 0;
- $contents = $newcontents;
- $new_start_line = $.;
- while (substr($contents, 0, 1) eq " ") {
- $contents = substr($contents, 1);
- }
- if ($contents ne "") {
- $contents .= "\n";
- }
- $section = $newsection;
- $leading_space = undef;
- } elsif (/$doc_end/) {
- if (($contents ne "") && ($contents ne "\n")) {
- dump_section($file, $section, xml_escape($contents));
- $section = $section_default;
- $contents = "";
- }
- # look for doc_com + <text> + doc_end:
- if ($_ =~ m'\s*\*\s*[a-zA-Z_0-9:\.]+\*/') {
- print STDERR "${file}:$.: warning: suspicious ending line: $_";
- ++$warnings;
- }
-
- $prototype = "";
- $state = STATE_PROTO;
- $brcount = 0;
-# print STDERR "end of doc comment, looking for prototype\n";
- } elsif (/$doc_content/) {
- # miguel-style comment kludge, look for blank lines after
- # @parameter line to signify start of description
- if ($1 eq "") {
- if ($section =~ m/^@/ || $section eq $section_context) {
- dump_section($file, $section, xml_escape($contents));
- $section = $section_default;
- $contents = "";
- $new_start_line = $.;
- } else {
- $contents .= "\n";
- }
- $in_purpose = 0;
- } elsif ($in_purpose == 1) {
- # Continued declaration purpose
- chomp($declaration_purpose);
- $declaration_purpose .= " " . xml_escape($1);
- $declaration_purpose =~ s/\s+/ /g;
- } else {
- my $cont = $1;
- if ($section =~ m/^@/ || $section eq $section_context) {
- if (!defined $leading_space) {
- if ($cont =~ m/^(\s+)/) {
- $leading_space = $1;
- } else {
- $leading_space = "";
- }
- }
-
- $cont =~ s/^$leading_space//;
- }
- $contents .= $cont . "\n";
- }
- } else {
- # i dont know - bad line? ignore.
- print STDERR "${file}:$.: warning: bad line: $_";
- ++$warnings;
- }
+ process_normal();
+ } elsif ($state == STATE_NAME) {
+ process_name($file, $_);
+ } elsif ($state == STATE_BODY || $state == STATE_BODY_MAYBE) {
+ process_body($file, $_);
} elsif ($state == STATE_INLINE) { # scanning for inline parameters
- # First line (state 1) needs to be a @parameter
- if ($inline_doc_state == STATE_INLINE_NAME && /$doc_inline_sect/o) {
- $section = $1;
- $contents = $2;
- $new_start_line = $.;
- if ($contents ne "") {
- while (substr($contents, 0, 1) eq " ") {
- $contents = substr($contents, 1);
- }
- $contents .= "\n";
- }
- $inline_doc_state = STATE_INLINE_TEXT;
- # Documentation block end */
- } elsif (/$doc_inline_end/) {
- if (($contents ne "") && ($contents ne "\n")) {
- dump_section($file, $section, xml_escape($contents));
- $section = $section_default;
- $contents = "";
- }
- $state = STATE_PROTO;
- $inline_doc_state = STATE_INLINE_NA;
- # Regular text
- } elsif (/$doc_content/) {
- if ($inline_doc_state == STATE_INLINE_TEXT) {
- $contents .= $1 . "\n";
- # nuke leading blank lines
- if ($contents =~ /^\s*$/) {
- $contents = "";
- }
- } elsif ($inline_doc_state == STATE_INLINE_NAME) {
- $inline_doc_state = STATE_INLINE_ERROR;
- print STDERR "${file}:$.: warning: ";
- print STDERR "Incorrect use of kernel-doc format: $_";
- ++$warnings;
- }
- }
- } elsif ($state == STATE_PROTO) { # scanning for function '{' (end of prototype)
- if (/$doc_inline_oneline/) {
- $section = $1;
- $contents = $2;
- if ($contents ne "") {
- $contents .= "\n";
- dump_section($file, $section, xml_escape($contents));
- $section = $section_default;
- $contents = "";
- }
- } elsif (/$doc_inline_start/) {
- $state = STATE_INLINE;
- $inline_doc_state = STATE_INLINE_NAME;
- } elsif ($decl_type eq 'function') {
- process_proto_function($_, $file);
- } else {
- process_proto_type($_, $file);
- }
+ process_inline($file, $_);
+ } elsif ($state == STATE_PROTO) {
+ process_proto($file, $_);
} elsif ($state == STATE_DOCBLOCK) {
- if (/$doc_end/)
- {
- dump_doc_section($file, $section, xml_escape($contents));
- $section = $section_default;
- $contents = "";
- $function = "";
- %parameterdescs = ();
- %parametertypes = ();
- @parameterlist = ();
- %sections = ();
- @sectionlist = ();
- $prototype = "";
- $state = STATE_NORMAL;
- }
- elsif (/$doc_content/)
- {
- if ( $1 eq "" )
- {
- $contents .= $blankline;
- }
- else
- {
- $contents .= $1 . "\n";
- }
- }
+ process_docblock($file, $_);
}
}
+
+ # Make sure we got something interesting.
if ($initial_section_counter == $section_counter) {
if ($output_mode ne "none") {
print STDERR "${file}:1: warning: no structured comments found\n";
git.samba.org / sfrench / cifs-2.6.git / blobdiff