CSC/ECE 517 Fall 2012/ch1 1w10 pk

1w10: Language extensions (not patterns or packages) for ORM.

There are many design patterns and software tools for referencing relational dbs from o-o languages. ActiveRecord, however, is a new approach, integrating support into the Rails framework itself. Do other languages have support that is as tightly integrated as ActiveRecord? Compare the ease of programming with language-level support to the ease of programming with external tools. Improve the existing work.

Section headings

Headings organize your writing into sections. The wiki software can automatically generate a table of contents from them. Start with 2 'equals' ("==") characters.

Subsection

Using more 'equals' characters creates a subsection.

A smaller subsection

Don't skip levels, like from two ("==") to four ("====") 'equals' characters.

A defined term

A semicolon at the

start of a line is a way of making a definition where the word being defined appears in bold. The definition itself follows the colon and is not rendered bold by default. It is not a heading and does not appear in the table of contents.

Lists

• Unordered lists are easy to do:
  • Start every line with a star.
    • More stars indicate a deeper level.

    Previous item continues.

  • A new line
• in a list

marks the end of the list.

• Of course you can start again.

1. Numbered lists are:
   1. Very organized
   2. Easy to follow

   Previous item continues

A new line marks the end of the list.

1. New numbering starts with 1.

Format

Text formatting

Description	What you type	What it looks like
Italics, bold, Template:Smallcaps.	To ''italicize text'', just put 2 apostrophes on each side. 3 apostrophes will '''bold the text''' 5 apostrophes for '''''bold italics''''' For text as {{Smallcaps|small caps}}, that uses a [[Help:Template|template]].	To italicize text, just put 2 apostrophes on each side. 3 apostrophes will bold the text 5 apostrophes for bold italics For text as Template:Smallcaps, that uses a template.
Small chunks of source code within a line of normal text. Code is displayed in a monospace font.	function <code>int m2()</code> is nice	function int m2() is nice
Syntax highlighting for source code. Computer code has colored text and more stringent formatting. For example, to define a function: int m2(), with highlights.	<syntaxhighlight lang="cpp"> #include <iostream> int m2 (int ax, char *p_ax) { std::cout <<"Hello World!"; return 0; }</syntaxhighlight>	#include <iostream> int m2 (int ax, char *p_ax) { std::cout <<"Hello World!"; return 0; }
Small text.	Use <small>small text</small> if needed. A span tag can set text font-size as being <span style="font-size:87%">87% of prior size</span>, to match an image caption.	Use small text if needed. A span tag can set text font-size as being 87% of prior size, to match an image caption.
Big text.	Better not use <big>big text</big>, unless <small> it's <big>within</big> small</small> text.	Better not use big text, unless it's within small text.
You can include a non-breaking space (sometimes called non-printing character) where you require two words to always appear together on the same line, such as Mr. Smith or 400 km/h, using &nbsp; in place of a regular space between the two "words" that need to behave as a single word (never be separated on different lines).	Mr.&nbsp;Smith or 400&nbsp;km/h.	Mr. Smith or 400 km/h.
Extra spacing within text can best be achieved using the pad template.	Mary {{pad|4em}} had a little lamb.	Mary       had a little lamb.
Typewriter font. (Also works beyond the end of a paragraph.)	<tt>arrow &rarr;</tt> <tt>''italics'', '''bold'''</tt> <tt><nowiki>[[link]] New paragraph </tt>started here.	arrow → italics, bold link New paragraph started here.

Link to another wiki article

• Internally, the first letter of the target page is automatically capitalized and spaces are represented as underscores (typing an underscore in the link has the same effect as typing a space, but is not recommended).
• Thus the link hereafter is to the Web address en.wikipedia.org/wiki/Public_transport, which is the Wikipedia article with the name "Public transport". See also Canonicalization.
• A red link is a page that doesn't exist yet; it can be created by clicking on the link.
• A link to its own page will appear only as bold text.

What you type	What it looks like
London has [[public transport]].	London has public transport.
Link to this own article: "[[Help:Wiki markup]]" will appear only as bold text.	Link to this own article: "Help:Wiki markup" will appear only as bold text.