+++ /dev/null
-package YAML::Loader;
-
-use YAML::Mo;
-extends 'YAML::Loader::Base';
-
-use YAML::Loader::Base;
-use YAML::Types;
-
-# Context constants
-use constant LEAF => 1;
-use constant COLLECTION => 2;
-use constant VALUE => "\x07YAML\x07VALUE\x07";
-use constant COMMENT => "\x07YAML\x07COMMENT\x07";
-
-# Common YAML character sets
-my $ESCAPE_CHAR = '[\\x00-\\x08\\x0b-\\x0d\\x0e-\\x1f]';
-my $FOLD_CHAR = '>';
-my $LIT_CHAR = '|';
-my $LIT_CHAR_RX = "\\$LIT_CHAR";
-
-sub load {
- my $self = shift;
- $self->stream($_[0] || '');
- return $self->_parse();
-}
-
-# Top level function for parsing. Parse each document in order and
-# handle processing for YAML headers.
-sub _parse {
- my $self = shift;
- my (%directives, $preface);
- $self->{stream} =~ s|\015\012|\012|g;
- $self->{stream} =~ s|\015|\012|g;
- $self->line(0);
- $self->die('YAML_PARSE_ERR_BAD_CHARS')
- if $self->stream =~ /$ESCAPE_CHAR/;
-# $self->die('YAML_PARSE_ERR_NO_FINAL_NEWLINE')
- $self->{stream} .= "\n"
- if length($self->stream) and
- $self->{stream} !~ s/(.)\n\Z/$1/s;
- $self->lines([split /\x0a/, $self->stream, -1]);
- $self->line(1);
- # Throw away any comments or blanks before the header (or start of
- # content for headerless streams)
- $self->_parse_throwaway_comments();
- $self->document(0);
- $self->documents([]);
- # Add an "assumed" header if there is no header and the stream is
- # not empty (after initial throwaways).
- if (not $self->eos) {
- if ($self->lines->[0] !~ /^---(\s|$)/) {
- unshift @{$self->lines}, '---';
- $self->{line}--;
- }
- }
-
- # Main Loop. Parse out all the top level nodes and return them.
- while (not $self->eos) {
- $self->anchor2node({});
- $self->{document}++;
- $self->done(0);
- $self->level(0);
- $self->offset->[0] = -1;
-
- if ($self->lines->[0] =~ /^---\s*(.*)$/) {
- my @words = split /\s+/, $1;
- %directives = ();
- while (@words && $words[0] =~ /^#(\w+):(\S.*)$/) {
- my ($key, $value) = ($1, $2);
- shift(@words);
- if (defined $directives{$key}) {
- $self->warn('YAML_PARSE_WARN_MULTIPLE_DIRECTIVES',
- $key, $self->document);
- next;
- }
- $directives{$key} = $value;
- }
- $self->preface(join ' ', @words);
- }
- else {
- $self->die('YAML_PARSE_ERR_NO_SEPARATOR');
- }
-
- if (not $self->done) {
- $self->_parse_next_line(COLLECTION);
- }
- if ($self->done) {
- $self->{indent} = -1;
- $self->content('');
- }
-
- $directives{YAML} ||= '1.0';
- $directives{TAB} ||= 'NONE';
- ($self->{major_version}, $self->{minor_version}) =
- split /\./, $directives{YAML}, 2;
- $self->die('YAML_PARSE_ERR_BAD_MAJOR_VERSION', $directives{YAML})
- if $self->major_version ne '1';
- $self->warn('YAML_PARSE_WARN_BAD_MINOR_VERSION', $directives{YAML})
- if $self->minor_version ne '0';
- $self->die('Unrecognized TAB policy')
- unless $directives{TAB} =~ /^(NONE|\d+)(:HARD)?$/;
-
- push @{$self->documents}, $self->_parse_node();
- }
- return wantarray ? @{$self->documents} : $self->documents->[-1];
-}
-
-# This function is the dispatcher for parsing each node. Every node
-# recurses back through here. (Inlines are an exception as they have
-# their own sub-parser.)
-sub _parse_node {
- my $self = shift;
- my $preface = $self->preface;
- $self->preface('');
- my ($node, $type, $indicator, $escape, $chomp) = ('') x 5;
- my ($anchor, $alias, $explicit, $implicit, $class) = ('') x 5;
- ($anchor, $alias, $explicit, $implicit, $preface) =
- $self->_parse_qualifiers($preface);
- if ($anchor) {
- $self->anchor2node->{$anchor} = CORE::bless [], 'YAML-anchor2node';
- }
- $self->inline('');
- while (length $preface) {
- my $line = $self->line - 1;
- if ($preface =~ s/^($FOLD_CHAR|$LIT_CHAR_RX)(-|\+)?\d*\s*//) {
- $indicator = $1;
- $chomp = $2 if defined($2);
- }
- else {
- $self->die('YAML_PARSE_ERR_TEXT_AFTER_INDICATOR') if $indicator;
- $self->inline($preface);
- $preface = '';
- }
- }
- if ($alias) {
- $self->die('YAML_PARSE_ERR_NO_ANCHOR', $alias)
- unless defined $self->anchor2node->{$alias};
- if (ref($self->anchor2node->{$alias}) ne 'YAML-anchor2node') {
- $node = $self->anchor2node->{$alias};
- }
- else {
- $node = do {my $sv = "*$alias"};
- push @{$self->anchor2node->{$alias}}, [\$node, $self->line];
- }
- }
- elsif (length $self->inline) {
- $node = $self->_parse_inline(1, $implicit, $explicit);
- if (length $self->inline) {
- $self->die('YAML_PARSE_ERR_SINGLE_LINE');
- }
- }
- elsif ($indicator eq $LIT_CHAR) {
- $self->{level}++;
- $node = $self->_parse_block($chomp);
- $node = $self->_parse_implicit($node) if $implicit;
- $self->{level}--;
- }
- elsif ($indicator eq $FOLD_CHAR) {
- $self->{level}++;
- $node = $self->_parse_unfold($chomp);
- $node = $self->_parse_implicit($node) if $implicit;
- $self->{level}--;
- }
- else {
- $self->{level}++;
- $self->offset->[$self->level] ||= 0;
- if ($self->indent == $self->offset->[$self->level]) {
- if ($self->content =~ /^-( |$)/) {
- $node = $self->_parse_seq($anchor);
- }
- elsif ($self->content =~ /(^\?|\:( |$))/) {
- $node = $self->_parse_mapping($anchor);
- }
- elsif ($preface =~ /^\s*$/) {
- $node = $self->_parse_implicit('');
- }
- else {
- $self->die('YAML_PARSE_ERR_BAD_NODE');
- }
- }
- else {
- $node = undef;
- }
- $self->{level}--;
- }
- $#{$self->offset} = $self->level;
-
- if ($explicit) {
- if ($class) {
- if (not ref $node) {
- my $copy = $node;
- undef $node;
- $node = \$copy;
- }
- CORE::bless $node, $class;
- }
- else {
- $node = $self->_parse_explicit($node, $explicit);
- }
- }
- if ($anchor) {
- if (ref($self->anchor2node->{$anchor}) eq 'YAML-anchor2node') {
- # XXX Can't remember what this code actually does
- for my $ref (@{$self->anchor2node->{$anchor}}) {
- ${$ref->[0]} = $node;
- $self->warn('YAML_LOAD_WARN_UNRESOLVED_ALIAS',
- $anchor, $ref->[1]);
- }
- }
- $self->anchor2node->{$anchor} = $node;
- }
- return $node;
-}
-
-# Preprocess the qualifiers that may be attached to any node.
-sub _parse_qualifiers {
- my $self = shift;
- my ($preface) = @_;
- my ($anchor, $alias, $explicit, $implicit, $token) = ('') x 5;
- $self->inline('');
- while ($preface =~ /^[&*!]/) {
- my $line = $self->line - 1;
- if ($preface =~ s/^\!(\S+)\s*//) {
- $self->die('YAML_PARSE_ERR_MANY_EXPLICIT') if $explicit;
- $explicit = $1;
- }
- elsif ($preface =~ s/^\!\s*//) {
- $self->die('YAML_PARSE_ERR_MANY_IMPLICIT') if $implicit;
- $implicit = 1;
- }
- elsif ($preface =~ s/^\&([^ ,:]+)\s*//) {
- $token = $1;
- $self->die('YAML_PARSE_ERR_BAD_ANCHOR')
- unless $token =~ /^[a-zA-Z0-9]+$/;
- $self->die('YAML_PARSE_ERR_MANY_ANCHOR') if $anchor;
- $self->die('YAML_PARSE_ERR_ANCHOR_ALIAS') if $alias;
- $anchor = $token;
- }
- elsif ($preface =~ s/^\*([^ ,:]+)\s*//) {
- $token = $1;
- $self->die('YAML_PARSE_ERR_BAD_ALIAS')
- unless $token =~ /^[a-zA-Z0-9]+$/;
- $self->die('YAML_PARSE_ERR_MANY_ALIAS') if $alias;
- $self->die('YAML_PARSE_ERR_ANCHOR_ALIAS') if $anchor;
- $alias = $token;
- }
- }
- return ($anchor, $alias, $explicit, $implicit, $preface);
-}
-
-# Morph a node to it's explicit type
-sub _parse_explicit {
- my $self = shift;
- my ($node, $explicit) = @_;
- my ($type, $class);
- if ($explicit =~ /^\!?perl\/(hash|array|ref|scalar)(?:\:(\w(\w|\:\:)*)?)?$/) {
- ($type, $class) = (($1 || ''), ($2 || ''));
-
- # FIXME # die unless uc($type) eq ref($node) ?
-
- if ( $type eq "ref" ) {
- $self->die('YAML_LOAD_ERR_NO_DEFAULT_VALUE', 'XXX', $explicit)
- unless exists $node->{VALUE()} and scalar(keys %$node) == 1;
-
- my $value = $node->{VALUE()};
- $node = \$value;
- }
-
- if ( $type eq "scalar" and length($class) and !ref($node) ) {
- my $value = $node;
- $node = \$value;
- }
-
- if ( length($class) ) {
- CORE::bless($node, $class);
- }
-
- return $node;
- }
- if ($explicit =~ m{^!?perl/(glob|regexp|code)(?:\:(\w(\w|\:\:)*)?)?$}) {
- ($type, $class) = (($1 || ''), ($2 || ''));
- my $type_class = "YAML::Type::$type";
- no strict 'refs';
- if ($type_class->can('yaml_load')) {
- return $type_class->yaml_load($node, $class, $self);
- }
- else {
- $self->die('YAML_LOAD_ERR_NO_CONVERT', 'XXX', $explicit);
- }
- }
- # This !perl/@Foo and !perl/$Foo are deprecated but still parsed
- elsif ($YAML::TagClass->{$explicit} ||
- $explicit =~ m{^perl/(\@|\$)?([a-zA-Z](\w|::)+)$}
- ) {
- $class = $YAML::TagClass->{$explicit} || $2;
- if ($class->can('yaml_load')) {
- require YAML::Node;
- return $class->yaml_load(YAML::Node->new($node, $explicit));
- }
- else {
- if (ref $node) {
- return CORE::bless $node, $class;
- }
- else {
- return CORE::bless \$node, $class;
- }
- }
- }
- elsif (ref $node) {
- require YAML::Node;
- return YAML::Node->new($node, $explicit);
- }
- else {
- # XXX This is likely wrong. Failing test:
- # --- !unknown 'scalar value'
- return $node;
- }
-}
-
-# Parse a YAML mapping into a Perl hash
-sub _parse_mapping {
- my $self = shift;
- my ($anchor) = @_;
- my $mapping = {};
- $self->anchor2node->{$anchor} = $mapping;
- my $key;
- while (not $self->done and $self->indent == $self->offset->[$self->level]) {
- # If structured key:
- if ($self->{content} =~ s/^\?\s*//) {
- $self->preface($self->content);
- $self->_parse_next_line(COLLECTION);
- $key = $self->_parse_node();
- $key = "$key";
- }
- # If "default" key (equals sign)
- elsif ($self->{content} =~ s/^\=\s*//) {
- $key = VALUE;
- }
- # If "comment" key (slash slash)
- elsif ($self->{content} =~ s/^\=\s*//) {
- $key = COMMENT;
- }
- # Regular scalar key:
- else {
- $self->inline($self->content);
- $key = $self->_parse_inline();
- $key = "$key";
- $self->content($self->inline);
- $self->inline('');
- }
-
- unless ($self->{content} =~ s/^:\s*//) {
- $self->die('YAML_LOAD_ERR_BAD_MAP_ELEMENT');
- }
- $self->preface($self->content);
- my $line = $self->line;
- $self->_parse_next_line(COLLECTION);
- my $value = $self->_parse_node();
- if (exists $mapping->{$key}) {
- $self->warn('YAML_LOAD_WARN_DUPLICATE_KEY');
- }
- else {
- $mapping->{$key} = $value;
- }
- }
- return $mapping;
-}
-
-# Parse a YAML sequence into a Perl array
-sub _parse_seq {
- my $self = shift;
- my ($anchor) = @_;
- my $seq = [];
- $self->anchor2node->{$anchor} = $seq;
- while (not $self->done and $self->indent == $self->offset->[$self->level]) {
- if ($self->content =~ /^-(?: (.*))?$/) {
- $self->preface(defined($1) ? $1 : '');
- }
- else {
- $self->die('YAML_LOAD_ERR_BAD_SEQ_ELEMENT');
- }
- if ($self->preface =~ /^(\s*)(\w.*\:(?: |$).*)$/) {
- $self->indent($self->offset->[$self->level] + 2 + length($1));
- $self->content($2);
- $self->level($self->level + 1);
- $self->offset->[$self->level] = $self->indent;
- $self->preface('');
- push @$seq, $self->_parse_mapping('');
- $self->{level}--;
- $#{$self->offset} = $self->level;
- }
- else {
- $self->_parse_next_line(COLLECTION);
- push @$seq, $self->_parse_node();
- }
- }
- return $seq;
-}
-
-# Parse an inline value. Since YAML supports inline collections, this is
-# the top level of a sub parsing.
-sub _parse_inline {
- my $self = shift;
- my ($top, $top_implicit, $top_explicit) = (@_, '', '', '');
- $self->{inline} =~ s/^\s*(.*)\s*$/$1/; # OUCH - mugwump
- my ($node, $anchor, $alias, $explicit, $implicit) = ('') x 5;
- ($anchor, $alias, $explicit, $implicit, $self->{inline}) =
- $self->_parse_qualifiers($self->inline);
- if ($anchor) {
- $self->anchor2node->{$anchor} = CORE::bless [], 'YAML-anchor2node';
- }
- $implicit ||= $top_implicit;
- $explicit ||= $top_explicit;
- ($top_implicit, $top_explicit) = ('', '');
- if ($alias) {
- $self->die('YAML_PARSE_ERR_NO_ANCHOR', $alias)
- unless defined $self->anchor2node->{$alias};
- if (ref($self->anchor2node->{$alias}) ne 'YAML-anchor2node') {
- $node = $self->anchor2node->{$alias};
- }
- else {
- $node = do {my $sv = "*$alias"};
- push @{$self->anchor2node->{$alias}}, [\$node, $self->line];
- }
- }
- elsif ($self->inline =~ /^\{/) {
- $node = $self->_parse_inline_mapping($anchor);
- }
- elsif ($self->inline =~ /^\[/) {
- $node = $self->_parse_inline_seq($anchor);
- }
- elsif ($self->inline =~ /^"/) {
- $node = $self->_parse_inline_double_quoted();
- $node = $self->_unescape($node);
- $node = $self->_parse_implicit($node) if $implicit;
- }
- elsif ($self->inline =~ /^'/) {
- $node = $self->_parse_inline_single_quoted();
- $node = $self->_parse_implicit($node) if $implicit;
- }
- else {
- if ($top) {
- $node = $self->inline;
- $self->inline('');
- }
- else {
- $node = $self->_parse_inline_simple();
- }
- $node = $self->_parse_implicit($node) unless $explicit;
- }
- if ($explicit) {
- $node = $self->_parse_explicit($node, $explicit);
- }
- if ($anchor) {
- if (ref($self->anchor2node->{$anchor}) eq 'YAML-anchor2node') {
- for my $ref (@{$self->anchor2node->{$anchor}}) {
- ${$ref->[0]} = $node;
- $self->warn('YAML_LOAD_WARN_UNRESOLVED_ALIAS',
- $anchor, $ref->[1]);
- }
- }
- $self->anchor2node->{$anchor} = $node;
- }
- return $node;
-}
-
-# Parse the inline YAML mapping into a Perl hash
-sub _parse_inline_mapping {
- my $self = shift;
- my ($anchor) = @_;
- my $node = {};
- $self->anchor2node->{$anchor} = $node;
-
- $self->die('YAML_PARSE_ERR_INLINE_MAP')
- unless $self->{inline} =~ s/^\{\s*//;
- while (not $self->{inline} =~ s/^\s*\}//) {
- my $key = $self->_parse_inline();
- $self->die('YAML_PARSE_ERR_INLINE_MAP')
- unless $self->{inline} =~ s/^\: \s*//;
- my $value = $self->_parse_inline();
- if (exists $node->{$key}) {
- $self->warn('YAML_LOAD_WARN_DUPLICATE_KEY');
- }
- else {
- $node->{$key} = $value;
- }
- next if $self->inline =~ /^\s*\}/;
- $self->die('YAML_PARSE_ERR_INLINE_MAP')
- unless $self->{inline} =~ s/^\,\s*//;
- }
- return $node;
-}
-
-# Parse the inline YAML sequence into a Perl array
-sub _parse_inline_seq {
- my $self = shift;
- my ($anchor) = @_;
- my $node = [];
- $self->anchor2node->{$anchor} = $node;
-
- $self->die('YAML_PARSE_ERR_INLINE_SEQUENCE')
- unless $self->{inline} =~ s/^\[\s*//;
- while (not $self->{inline} =~ s/^\s*\]//) {
- my $value = $self->_parse_inline();
- push @$node, $value;
- next if $self->inline =~ /^\s*\]/;
- $self->die('YAML_PARSE_ERR_INLINE_SEQUENCE')
- unless $self->{inline} =~ s/^\,\s*//;
- }
- return $node;
-}
-
-# Parse the inline double quoted string.
-sub _parse_inline_double_quoted {
- my $self = shift;
- my $node;
- # https://rt.cpan.org/Public/Bug/Display.html?id=90593
- if ($self->inline =~ /^"((?:(?:\\"|[^"]){0,32766}){0,32766})"\s*(.*)$/) {
- $node = $1;
- $self->inline($2);
- $node =~ s/\\"/"/g;
- }
- else {
- $self->die('YAML_PARSE_ERR_BAD_DOUBLE');
- }
- return $node;
-}
-
-
-# Parse the inline single quoted string.
-sub _parse_inline_single_quoted {
- my $self = shift;
- my $node;
- if ($self->inline =~ /^'((?:(?:''|[^']){0,32766}){0,32766})'\s*(.*)$/) {
- $node = $1;
- $self->inline($2);
- $node =~ s/''/'/g;
- }
- else {
- $self->die('YAML_PARSE_ERR_BAD_SINGLE');
- }
- return $node;
-}
-
-# Parse the inline unquoted string and do implicit typing.
-sub _parse_inline_simple {
- my $self = shift;
- my $value;
- if ($self->inline =~ /^(|[^!@#%^&*].*?)(?=[\[\]\{\},]|, |: |- |:\s*$|$)/) {
- $value = $1;
- substr($self->{inline}, 0, length($1)) = '';
- }
- else {
- $self->die('YAML_PARSE_ERR_BAD_INLINE_IMPLICIT', $value);
- }
- return $value;
-}
-
-sub _parse_implicit {
- my $self = shift;
- my ($value) = @_;
- $value =~ s/\s*$//;
- return $value if $value eq '';
- return undef if $value =~ /^~$/;
- return $value
- unless $value =~ /^[\@\`]/ or
- $value =~ /^[\-\?]\s/;
- $self->die('YAML_PARSE_ERR_BAD_IMPLICIT', $value);
-}
-
-# Unfold a YAML multiline scalar into a single string.
-sub _parse_unfold {
- my $self = shift;
- my ($chomp) = @_;
- my $node = '';
- my $space = 0;
- while (not $self->done and $self->indent == $self->offset->[$self->level]) {
- $node .= $self->content. "\n";
- $self->_parse_next_line(LEAF);
- }
- $node =~ s/^(\S.*)\n(?=\S)/$1 /gm;
- $node =~ s/^(\S.*)\n(\n+\S)/$1$2/gm;
- $node =~ s/\n*\Z// unless $chomp eq '+';
- $node .= "\n" unless $chomp;
- return $node;
-}
-
-# Parse a YAML block style scalar. This is like a Perl here-document.
-sub _parse_block {
- my $self = shift;
- my ($chomp) = @_;
- my $node = '';
- while (not $self->done and $self->indent == $self->offset->[$self->level]) {
- $node .= $self->content . "\n";
- $self->_parse_next_line(LEAF);
- }
- return $node if '+' eq $chomp;
- $node =~ s/\n*\Z/\n/;
- $node =~ s/\n\Z// if $chomp eq '-';
- return $node;
-}
-
-# Handle Perl style '#' comments. Comments must be at the same indentation
-# level as the collection line following them.
-sub _parse_throwaway_comments {
- my $self = shift;
- while (@{$self->lines} and
- $self->lines->[0] =~ m{^\s*(\#|$)}
- ) {
- shift @{$self->lines};
- $self->{line}++;
- }
- $self->eos($self->{done} = not @{$self->lines});
-}
-
-# This is the routine that controls what line is being parsed. It gets called
-# once for each line in the YAML stream.
-#
-# This routine must:
-# 1) Skip past the current line
-# 2) Determine the indentation offset for a new level
-# 3) Find the next _content_ line
-# A) Skip over any throwaways (Comments/blanks)
-# B) Set $self->indent, $self->content, $self->line
-# 4) Expand tabs appropriately
-sub _parse_next_line {
- my $self = shift;
- my ($type) = @_;
- my $level = $self->level;
- my $offset = $self->offset->[$level];
- $self->die('YAML_EMIT_ERR_BAD_LEVEL') unless defined $offset;
- shift @{$self->lines};
- $self->eos($self->{done} = not @{$self->lines});
- return if $self->eos;
- $self->{line}++;
-
- # Determine the offset for a new leaf node
- if ($self->preface =~
- qr/(?:^|\s)(?:$FOLD_CHAR|$LIT_CHAR_RX)(?:-|\+)?(\d*)\s*$/
- ) {
- $self->die('YAML_PARSE_ERR_ZERO_INDENT')
- if length($1) and $1 == 0;
- $type = LEAF;
- if (length($1)) {
- $self->offset->[$level + 1] = $offset + $1;
- }
- else {
- # First get rid of any comments.
- while (@{$self->lines} && ($self->lines->[0] =~ /^\s*#/)) {
- $self->lines->[0] =~ /^( *)/;
- last unless length($1) <= $offset;
- shift @{$self->lines};
- $self->{line}++;
- }
- $self->eos($self->{done} = not @{$self->lines});
- return if $self->eos;
- if ($self->lines->[0] =~ /^( *)\S/ and length($1) > $offset) {
- $self->offset->[$level+1] = length($1);
- }
- else {
- $self->offset->[$level+1] = $offset + 1;
- }
- }
- $offset = $self->offset->[++$level];
- }
- # Determine the offset for a new collection level
- elsif ($type == COLLECTION and
- $self->preface =~ /^(\s*(\!\S*|\&\S+))*\s*$/) {
- $self->_parse_throwaway_comments();
- if ($self->eos) {
- $self->offset->[$level+1] = $offset + 1;
- return;
- }
- else {
- $self->lines->[0] =~ /^( *)\S/ or
- $self->die('YAML_PARSE_ERR_NONSPACE_INDENTATION');
- if (length($1) > $offset) {
- $self->offset->[$level+1] = length($1);
- }
- else {
- $self->offset->[$level+1] = $offset + 1;
- }
- }
- $offset = $self->offset->[++$level];
- }
-
- if ($type == LEAF) {
- while (@{$self->lines} and
- $self->lines->[0] =~ m{^( *)(\#)} and
- length($1) < $offset
- ) {
- shift @{$self->lines};
- $self->{line}++;
- }
- $self->eos($self->{done} = not @{$self->lines});
- }
- else {
- $self->_parse_throwaway_comments();
- }
- return if $self->eos;
-
- if ($self->lines->[0] =~ /^---(\s|$)/) {
- $self->done(1);
- return;
- }
- if ($type == LEAF and
- $self->lines->[0] =~ /^ {$offset}(.*)$/
- ) {
- $self->indent($offset);
- $self->content($1);
- }
- elsif ($self->lines->[0] =~ /^\s*$/) {
- $self->indent($offset);
- $self->content('');
- }
- else {
- $self->lines->[0] =~ /^( *)(\S.*)$/;
- while ($self->offset->[$level] > length($1)) {
- $level--;
- }
- $self->die('YAML_PARSE_ERR_INCONSISTENT_INDENTATION')
- if $self->offset->[$level] != length($1);
- $self->indent(length($1));
- $self->content($2);
- }
- $self->die('YAML_PARSE_ERR_INDENTATION')
- if $self->indent - $offset > 1;
-}
-
-#==============================================================================
-# Utility subroutines.
-#==============================================================================
-
-# Printable characters for escapes
-my %unescapes = (
- 0 => "\x00",
- a => "\x07",
- t => "\x09",
- n => "\x0a",
- 'v' => "\x0b", # Potential v-string error on 5.6.2 if not quoted
- f => "\x0c",
- r => "\x0d",
- e => "\x1b",
- '\\' => '\\',
- );
-
-# Transform all the backslash style escape characters to their literal meaning
-sub _unescape {
- my $self = shift;
- my ($node) = @_;
- $node =~ s/\\([never\\fart0]|x([0-9a-fA-F]{2}))/
- (length($1)>1)?pack("H2",$2):$unescapes{$1}/gex;
- return $node;
-}
-
-1;
projects / kivitendo-erp.git / blobdiff