diff options
Diffstat (limited to 'ruby_1_8_6/lib/rdoc/ri/ri_formatter.rb')
| -rw-r--r-- | ruby_1_8_6/lib/rdoc/ri/ri_formatter.rb | 672 |
1 files changed, 0 insertions, 672 deletions
diff --git a/ruby_1_8_6/lib/rdoc/ri/ri_formatter.rb b/ruby_1_8_6/lib/rdoc/ri/ri_formatter.rb deleted file mode 100644 index 34eb561ca3..0000000000 --- a/ruby_1_8_6/lib/rdoc/ri/ri_formatter.rb +++ /dev/null @@ -1,672 +0,0 @@ -module RI - class TextFormatter - - attr_reader :indent - - def initialize(options, indent) - @options = options - @width = options.width - @indent = indent - end - - - ###################################################################### - - def draw_line(label=nil) - len = @width - len -= (label.size+1) if label - print "-"*len - if label - print(" ") - bold_print(label) - end - puts - end - - ###################################################################### - - def wrap(txt, prefix=@indent, linelen=@width) - return unless txt && !txt.empty? - work = conv_markup(txt) - textLen = linelen - prefix.length - patt = Regexp.new("^(.{0,#{textLen}})[ \n]") - next_prefix = prefix.tr("^ ", " ") - - res = [] - - while work.length > textLen - if work =~ patt - res << $1 - work.slice!(0, $&.length) - else - res << work.slice!(0, textLen) - end - end - res << work if work.length.nonzero? - puts(prefix + res.join("\n" + next_prefix)) - end - - ###################################################################### - - def blankline - puts - end - - ###################################################################### - - # called when we want to ensure a nbew 'wrap' starts on a newline - # Only needed for HtmlFormatter, because the rest do their - # own line breaking - - def break_to_newline - end - - ###################################################################### - - def bold_print(txt) - print txt - end - - ###################################################################### - - def raw_print_line(txt) - puts txt - end - - ###################################################################### - - # convert HTML entities back to ASCII - def conv_html(txt) - txt. - gsub(/>/, '>'). - gsub(/</, '<'). - gsub(/"/, '"'). - gsub(/&/, '&') - - end - - # convert markup into display form - def conv_markup(txt) - txt. - gsub(%r{<tt>(.*?)</tt>}) { "+#$1+" } . - gsub(%r{<code>(.*?)</code>}) { "+#$1+" } . - gsub(%r{<b>(.*?)</b>}) { "*#$1*" } . - gsub(%r{<em>(.*?)</em>}) { "_#$1_" } - end - - ###################################################################### - - def display_list(list) - case list.type - - when SM::ListBase::BULLET - prefixer = proc { |ignored| @indent + "* " } - - when SM::ListBase::NUMBER, - SM::ListBase::UPPERALPHA, - SM::ListBase::LOWERALPHA - - start = case list.type - when SM::ListBase::NUMBER then 1 - when SM::ListBase::UPPERALPHA then 'A' - when SM::ListBase::LOWERALPHA then 'a' - end - prefixer = proc do |ignored| - res = @indent + "#{start}.".ljust(4) - start = start.succ - res - end - - when SM::ListBase::LABELED - prefixer = proc do |li| - li.label - end - - when SM::ListBase::NOTE - longest = 0 - list.contents.each do |item| - if item.kind_of?(SM::Flow::LI) && item.label.length > longest - longest = item.label.length - end - end - - prefixer = proc do |li| - @indent + li.label.ljust(longest+1) - end - - else - fail "unknown list type" - - end - - list.contents.each do |item| - if item.kind_of? SM::Flow::LI - prefix = prefixer.call(item) - display_flow_item(item, prefix) - else - display_flow_item(item) - end - end - end - - ###################################################################### - - def display_flow_item(item, prefix=@indent) - case item - when SM::Flow::P, SM::Flow::LI - wrap(conv_html(item.body), prefix) - blankline - - when SM::Flow::LIST - display_list(item) - - when SM::Flow::VERB - display_verbatim_flow_item(item, @indent) - - when SM::Flow::H - display_heading(conv_html(item.text), item.level, @indent) - - when SM::Flow::RULE - draw_line - - else - fail "Unknown flow element: #{item.class}" - end - end - - ###################################################################### - - def display_verbatim_flow_item(item, prefix=@indent) - item.body.split(/\n/).each do |line| - print @indent, conv_html(line), "\n" - end - blankline - end - - ###################################################################### - - def display_heading(text, level, indent) - text = strip_attributes(text) - case level - when 1 - ul = "=" * text.length - puts - puts text.upcase - puts ul -# puts - - when 2 - ul = "-" * text.length - puts - puts text - puts ul -# puts - else - print indent, text, "\n" - end - end - - - def display_flow(flow) - flow.each do |f| - display_flow_item(f) - end - end - - def strip_attributes(txt) - tokens = txt.split(%r{(</?(?:b|code|em|i|tt)>)}) - text = [] - attributes = 0 - tokens.each do |tok| - case tok - when %r{^</(\w+)>$}, %r{^<(\w+)>$} - ; - else - text << tok - end - end - text.join - end - - - end - - - ###################################################################### - # Handle text with attributes. We're a base class: there are - # different presentation classes (one, for example, uses overstrikes - # to handle bold and underlining, while another using ANSI escape - # sequences - - class AttributeFormatter < TextFormatter - - BOLD = 1 - ITALIC = 2 - CODE = 4 - - ATTR_MAP = { - "b" => BOLD, - "code" => CODE, - "em" => ITALIC, - "i" => ITALIC, - "tt" => CODE - } - - # TODO: struct? - class AttrChar - attr_reader :char - attr_reader :attr - - def initialize(char, attr) - @char = char - @attr = attr - end - end - - - class AttributeString - attr_reader :txt - - def initialize - @txt = [] - @optr = 0 - end - - def <<(char) - @txt << char - end - - def empty? - @optr >= @txt.length - end - - # accept non space, then all following spaces - def next_word - start = @optr - len = @txt.length - - while @optr < len && @txt[@optr].char != " " - @optr += 1 - end - - while @optr < len && @txt[@optr].char == " " - @optr += 1 - end - - @txt[start...@optr] - end - end - - ###################################################################### - # overrides base class. Looks for <tt>...</tt> etc sequences - # and generates an array of AttrChars. This array is then used - # as the basis for the split - - def wrap(txt, prefix=@indent, linelen=@width) - return unless txt && !txt.empty? - - txt = add_attributes_to(txt) - next_prefix = prefix.tr("^ ", " ") - linelen -= prefix.size - - line = [] - - until txt.empty? - word = txt.next_word - if word.size + line.size > linelen - write_attribute_text(prefix, line) - prefix = next_prefix - line = [] - end - line.concat(word) - end - - write_attribute_text(prefix, line) if line.length > 0 - end - - protected - - # overridden in specific formatters - - def write_attribute_text(prefix, line) - print prefix - line.each do |achar| - print achar.char - end - puts - end - - # again, overridden - - def bold_print(txt) - print txt - end - - private - - def add_attributes_to(txt) - tokens = txt.split(%r{(</?(?:b|code|em|i|tt)>)}) - text = AttributeString.new - attributes = 0 - tokens.each do |tok| - case tok - when %r{^</(\w+)>$} then attributes &= ~(ATTR_MAP[$1]||0) - when %r{^<(\w+)>$} then attributes |= (ATTR_MAP[$1]||0) - else - tok.split(//).each {|ch| text << AttrChar.new(ch, attributes)} - end - end - text - end - - end - - - ################################################## - - # This formatter generates overstrike-style formatting, which - # works with pagers such as man and less. - - class OverstrikeFormatter < AttributeFormatter - - BS = "\C-h" - - def write_attribute_text(prefix, line) - print prefix - line.each do |achar| - attr = achar.attr - if (attr & (ITALIC+CODE)) != 0 - print "_", BS - end - if (attr & BOLD) != 0 - print achar.char, BS - end - print achar.char - end - puts - end - - # draw a string in bold - def bold_print(text) - text.split(//).each do |ch| - print ch, BS, ch - end - end - end - - ################################################## - - # This formatter uses ANSI escape sequences - # to colorize stuff - # works with pages such as man and less. - - class AnsiFormatter < AttributeFormatter - - def initialize(*args) - print "\033[0m" - super - end - - def write_attribute_text(prefix, line) - print prefix - curr_attr = 0 - line.each do |achar| - attr = achar.attr - if achar.attr != curr_attr - update_attributes(achar.attr) - curr_attr = achar.attr - end - print achar.char - end - update_attributes(0) unless curr_attr.zero? - puts - end - - - def bold_print(txt) - print "\033[1m#{txt}\033[m" - end - - HEADINGS = { - 1 => [ "\033[1;32m", "\033[m" ] , - 2 => ["\033[4;32m", "\033[m" ], - 3 => ["\033[32m", "\033[m" ] - } - - def display_heading(text, level, indent) - level = 3 if level > 3 - heading = HEADINGS[level] - print indent - print heading[0] - print strip_attributes(text) - puts heading[1] - end - - private - - ATTR_MAP = { - BOLD => "1", - ITALIC => "33", - CODE => "36" - } - - def update_attributes(attr) - str = "\033[" - for quality in [ BOLD, ITALIC, CODE] - unless (attr & quality).zero? - str << ATTR_MAP[quality] - end - end - print str, "m" - end - end - - ################################################## - - # This formatter uses HTML. - - class HtmlFormatter < AttributeFormatter - - def initialize(*args) - super - end - - def write_attribute_text(prefix, line) - curr_attr = 0 - line.each do |achar| - attr = achar.attr - if achar.attr != curr_attr - update_attributes(curr_attr, achar.attr) - curr_attr = achar.attr - end - print(escape(achar.char)) - end - update_attributes(curr_attr, 0) unless curr_attr.zero? - end - - def draw_line(label=nil) - if label != nil - bold_print(label) - end - puts("<hr>") - end - - def bold_print(txt) - tag("b") { txt } - end - - def blankline() - puts("<p>") - end - - def break_to_newline - puts("<br>") - end - - def display_heading(text, level, indent) - level = 4 if level > 4 - tag("h#{level}") { text } - puts - end - - ###################################################################### - - def display_list(list) - - case list.type - when SM::ListBase::BULLET - list_type = "ul" - prefixer = proc { |ignored| "<li>" } - - when SM::ListBase::NUMBER, - SM::ListBase::UPPERALPHA, - SM::ListBase::LOWERALPHA - list_type = "ol" - prefixer = proc { |ignored| "<li>" } - - when SM::ListBase::LABELED - list_type = "dl" - prefixer = proc do |li| - "<dt><b>" + escape(li.label) + "</b><dd>" - end - - when SM::ListBase::NOTE - list_type = "table" - prefixer = proc do |li| - %{<tr valign="top"><td>#{li.label.gsub(/ /, ' ')}</td><td>} - end - else - fail "unknown list type" - end - - print "<#{list_type}>" - list.contents.each do |item| - if item.kind_of? SM::Flow::LI - prefix = prefixer.call(item) - print prefix - display_flow_item(item, prefix) - else - display_flow_item(item) - end - end - print "</#{list_type}>" - end - - def display_verbatim_flow_item(item, prefix=@indent) - print("<pre>") - puts item.body - puts("</pre>") - end - - private - - ATTR_MAP = { - BOLD => "b>", - ITALIC => "i>", - CODE => "tt>" - } - - def update_attributes(current, wanted) - str = "" - # first turn off unwanted ones - off = current & ~wanted - for quality in [ BOLD, ITALIC, CODE] - if (off & quality) > 0 - str << "</" + ATTR_MAP[quality] - end - end - - # now turn on wanted - for quality in [ BOLD, ITALIC, CODE] - unless (wanted & quality).zero? - str << "<" << ATTR_MAP[quality] - end - end - print str - end - - def tag(code) - print("<#{code}>") - print(yield) - print("</#{code}>") - end - - def escape(str) - str. - gsub(/&/n, '&'). - gsub(/\"/n, '"'). - gsub(/>/n, '>'). - gsub(/</n, '<') - end - - end - - ################################################## - - # This formatter reduces extra lines for a simpler output. - # It improves way output looks for tools like IRC bots. - - class SimpleFormatter < TextFormatter - - ###################################################################### - - # No extra blank lines - - def blankline - end - - ###################################################################### - - # Display labels only, no lines - - def draw_line(label=nil) - unless label.nil? then - bold_print(label) - puts - end - end - - ###################################################################### - - # Place heading level indicators inline with heading. - - def display_heading(text, level, indent) - text = strip_attributes(text) - case level - when 1 - puts "= " + text.upcase - when 2 - puts "-- " + text - else - print indent, text, "\n" - end - end - - end - - - # Finally, fill in the list of known formatters - - class TextFormatter - - FORMATTERS = { - "ansi" => AnsiFormatter, - "bs" => OverstrikeFormatter, - "html" => HtmlFormatter, - "plain" => TextFormatter, - "simple" => SimpleFormatter, - } - - def TextFormatter.list - FORMATTERS.keys.sort.join(", ") - end - - def TextFormatter.for(name) - FORMATTERS[name.downcase] - end - - end - -end - - |