- Inheritance
- < Object
Synopsis
This code converts input_string, which is in the format described in markup/simple_markup.rb, to HTML. The conversion takes place in the convert method, so you can use the same SimpleMarkup object to convert multiple input strings.
require 'rdoc/markup/simple_markup' require 'rdoc/markup/simple_markup/to_html' p = SM::SimpleMarkup.new h = SM::ToHtml.new puts p.convert(input_string, h)
You can extend the SimpleMarkup parser to recognise new markup sequences, and to add special processing for text that matches a regular epxression. Here we make WikiWords significant to the parser, and also make the sequences {word} and <no>text…</no> signify strike-through text. When then subclass the HTML output class to deal with these:
require 'rdoc/markup/simple_markup' require 'rdoc/markup/simple_markup/to_html' class WikiHtml < SM::ToHtml def handle_special_WIKIWORD(special) "<font color=red>" + special.text + "</font>" end end p = SM::SimpleMarkup.new p.add_word_pair("{", "}", :STRIKE) p.add_html("no", :STRIKE) p.add_special(/\b([A-Z][a-z]+[A-Z]\w+)/, :WIKIWORD) h = WikiHtml.new h.add_tag(:STRIKE, "<strike>", "</strike>") puts "<body>" + p.convert(ARGF.read, h) + "</body>"
Output Formatters
missing
Constants
Name | Description | |
---|---|---|
LABEL_LIST_RE | = /^( ( \[.*?\] (?# labeled ) |\S.*:: (?# note ) )(?:\s+|$) )/x | |
SIMPLE_LIST_RE | = /^( ( \* (?# bullet) |- (?# bullet) |\d+\. (?# numbered ) |[A-Za-z]\. (?# alphabetically numbered ) ) \s+ )\S/x |
List entries look like:
* text 1. text [label] text label:: text Flag it as a list entry, and work out the indent for subsequent lines |
SPACE | = ?\s |
Methods
Class
Visibility | Signature |
---|---|
public | new () |
Instance
Visibility | Signature |
---|---|
public | add_html (tag, name) |
public | add_special (pattern, name) |
public | add_word_pair (start, stop, name) |
public | content () |
public | convert (str, op) |
public | get_line_types () |
Class Method Detail
new()
take a block of text and use various heuristics to determine it‘s structure (paragraphs, lists, and so on). Invoke an event handler as we identify significant chunks.
Instance Method Detail
add_html(tag, name)
Add to the sequences recognized as general markup
add_special(pattern, name)
Add to other inline sequences. For example, we could add WikiWords using something like:
parser.add_special(/\b([A-Z][a-z]+[A-Z]\w+)/, :WIKIWORD)
Each wiki word will be presented to the output formatter via the accept_special method
add_word_pair(start, stop, name)
Add to the sequences used to add formatting to an individual word (such as bold). Matching entries will generate attibutes that the output formatters can recognize by their name
content()
for debugging, we allow access to our line contents as text
convert(str, op)
We take a string, split it into lines, work out the type of each line, and from there deduce groups of lines (for example all lines in a paragraph). We then invoke the output formatter using a Visitor to display the result
get_line_types()
for debugging, return the list of line types