# Appendix

## Key Bindings

<table>
  <tr><th>Linux / Win32</th><th>Mac OSX</th><th>Command</th></tr>
  <tr><td colspan='3'><strong>File</strong></td></tr>
  <tr><td>Ctrl+N</td><td>Apple+N</td><td>New file</td></tr>
  <tr><td>Ctrl+O</td><td>Apple+O</td><td>Open file</td></tr>
  <tr><td>Alt+O</td><td>Ctrl+O</td><td>Open recent file</td></tr>
  <tr><td>None</td><td>None</td><td>Reload file</td></tr>
  <tr><td>Ctrl+S</td><td>Apple+S</td><td>Save file</td></tr>
  <tr><td>Ctrl+Shift+S</td><td>Apple+Shift+S</td><td>Save file as</td></tr>
  <tr><td>Ctrl+W</td><td>Apple+W</td><td>Close file</td></tr>
  <tr><td>Ctrl+Shift+W</td><td>Apple+Shift+W</td><td>Close all</td></tr>
  <tr><td>None</td><td>None</td><td>Load Session</td></tr>
  <tr><td>None</td><td>None</td><td>Save Session</td></tr>
  <tr><td>Alt+Q</td><td>Apple+Q</td><td>Quit textadept</td></tr>
  <tr><td colspan='3'><strong>Edit</strong></td></tr>
  <tr><td>Ctrl+Z</td><td>Apple+Z</td><td>Undo</td></tr>
  <tr><td>Ctrl+Y</td><td>Apple+Shift+Z</td><td>Redo</td></tr>
  <tr><td>Ctrl+X<br/>Shift+Del</td><td>Apple+X<br/>Shift+Del</td><td>Cut</td></tr>
  <tr><td>Ctrl+C<br/>Ctrl+Shift+Insert</td><td>Apple+C<br/>Ctrl+Shift+Insert</td><td>Copy</td></tr>
  <tr><td>Ctrl+V<br/>Shift+Insert</td><td>Apple+V<br/>Shift+Insert</td><td>Paste</td></tr>
  <tr><td>Ctrl+A</td><td>Apple+A</td><td>Select All</td></tr>
  <tr><td>Ctrl+E</td><td>Ctrl+M</td><td>Go to matching brace</td></tr>
  <tr><td>Ctrl+Shift+E</td><td>Apple+Shift+E</td><td>Select to matching brace</td></tr>
  <tr><td>Ctrl+Return</td><td>Escape</td><td>Autocomplete word in file</td></tr>
  <tr><td>Ctrl+I</td><td>Ctrl+Escape</td><td>Autocomplete symbol for supported languages</td></tr>
  <tr><td>Ctrl+H</td><td>Ctrl+H</td><td>Show symbol apidoc for supported languages</td></tr>
  <tr><td>Ctrl+Q</td><td>Ctrl+Q</td><td>Block comment/uncomment</td></tr>
  <tr><td>None</td><td>None</td><td>Delete word</td></tr>
  <tr><td>Ctrl+Shift+H</td><td>Ctrl+Apple+T</td><td>Highlight word occurances</td></tr>
  <tr><td>None</td><td>Ctrl+T</td><td>Transpose characters</td></tr>
  <tr><td>None</td><td>None</td><td>Convert indentation</td></tr>
  <tr><td>None</td><td>Ctrl+K</td><td>Cut to end of line</td></tr>
  <tr><td>None</td><td>Ctrl+Y</td><td>Paste text cut</td></tr>
  <tr><td>Alt+C, T</td><td>Ctrl+C, T</td><td>Enclose word or selection in XML tag</td></tr>
  <tr><td>Alt+C, Shift+T</td><td>Ctrl+C, Shift+T</td><td>Enclose word or selection in single XML tag</td></tr>
  <tr><td>Alt+C, "</td><td>Ctrl+C, "</td><td>Enclose word or selection in double quotes</td></tr>
  <tr><td>Alt+C, '</td><td>Ctrl+C, '</td><td>Enclose word or selection in single quotes</td></tr>
  <tr><td>Alt+C, (</td><td>Ctrl+C, (</td><td>Enclose word or selection in parenthesis</td></tr>
  <tr><td>Alt+C, [</td><td>Ctrl+C, [</td><td>Enclose word or selection in brackets</td></tr>
  <tr><td>Alt+C, {</td><td>Ctrl+C, {</td><td>Enclose word or selection in braces</td></tr>
  <tr><td>Alt+C, C, &lt;char&gt;</td><td>Ctrl+C, C, &lt;char&gt;</td><td>Enclose word or selection in character</td></tr>
  <tr><td>Alt+S, T</td><td>Ctrl+S, T</td><td>Select between XML tags</td></tr>
  <tr><td>Alt+S, "</td><td>Ctrl+S, "</td><td>Select between double quotes</td></tr>
  <tr><td>Alt+S, '</td><td>Ctrl+S, '</td><td>Select between single quotes</td></tr>
  <tr><td>Alt+S, (</td><td>Ctrl+S, (</td><td>Select between parenthesis</td></tr>
  <tr><td>Alt+S, [</td><td>Ctrl+S, [</td><td>Select between brackets</td></tr>
  <tr><td>Alt+S, {</td><td>Ctrl+S, {</td><td>Select between braces</td></tr>
  <tr><td>Alt+S, W</td><td>Ctrl+S, W</td><td>Select word</td></tr>
  <tr><td>Alt+S, L</td><td>Ctrl+S, L</td><td>Select line</td></tr>
  <tr><td>Alt+S, P</td><td>Ctrl+S, P</td><td>Select paragraph</td></tr>
  <tr><td>Alt+S, S</td><td>Ctrl+S, S</td><td>Select scope (style)</td></tr>
  <tr><td>Alt+S, G</td><td>Ctrl+S, G</td><td>Grow selection by a character on each end</td></tr>
  <tr><td>Alt+S, C, &lt;char&gt;</td><td>Ctrl+S, C, &lt;char&gt;</td><td>Select between characters</td></tr>
  <tr><td>Insert</td><td>Insert</td><td>Toggle overtype</td></tr>
  <tr><td>Ctrl+Alt+Shift+I</td><td>Ctrl+Apple+Shift+I</td><td>Show style</td></tr>
  <tr><td colspan='3'><strong>Search</strong></td></tr>
  <tr><td>Ctrl+F</td><td>Apple+F</td><td>Find</td></tr>
  <tr><td>F3</td><td>Apple+G</td><td>Find next</td></tr>
  <tr><td>None</td><td>Apple+Shift+G</td><td>Find prev</td></tr>
  <tr><td>None</td><td>Apple+R</td><td>Replace</td></tr>
  <tr><td>Ctrl+Shift+F</td><td>Apple+I</td><td>Find incremental</td></tr>
  <tr><td>None</td><td>Apple+Shift+F</td><td>Find in files</td></tr>
  <tr><td>None</td><td>Ctrl+Apple+G</td><td>Goto next file in list</td></tr>
  <tr><td>None</td><td>Ctrl+Apple+Shift+G</td><td>Goto prev file in list</td></tr>
  <tr><td>Ctrl+G</td><td>Ctrl+G</td><td>Goto line</td></tr>
  <tr><td colspan='3'><strong>Tools</strong></td></tr>
  <tr><td>F2</td><td>F2</td><td>Focus Lua command entry</td></tr>
  <tr><td>Ctrl+R</td><td>Ctrl+R</td><td>Run file</td></tr>
  <tr><td>Ctrl+Shift+R</td><td>Ctrl+Shift+R</td><td>Compile file</td></tr>
  <tr><td>Alt+R</td><td>Ctrl+Apple+R</td><td>Filter through shell command</td></tr>
  <tr><td>Tab</td><td>Tab</td><td>Expand snippet or next placeholder or indent text</td></tr>
  <tr><td>Alt+I</td><td>Ctrl+I</td><td>Select snippet to insert</td></tr>
  <tr><td>Shift+Tab</td><td>Shift+Tab</td><td>Previous snippet placeholder or dedent text</td></tr>
  <tr><td>Ctrl+Alt+I</td><td>Ctrl+Apple+I</td><td>Cancel current snippet</td></tr>
  <tr><td colspan='3'><strong>Buffers</strong></td></tr>
  <tr><td>Ctrl+B</td><td>Apple+B</td><td>Switch buffers</td></tr>
  <tr><td>Ctrl+Tab</td><td>Ctrl+Tab</td><td>Next buffer</td></tr>
  <tr><td>Ctrl+Shift+Tab</td><td>Ctrl+Shift+Tab</td><td>Prev buffer</td></tr>
  <tr><td>Ctrl+Shift+B, E</td><td>Apple+Shift+B, E</td><td>Toggle show end of line</td></tr>
  <tr><td>Ctrl+Shift+B, W</td><td>Apple+Shift+B, W</td><td>Toggle show whitespace</td></tr>
  <tr><td>Ctrl+Shift+B, I</td><td>Apple+Shift+B, I</td><td>Toggle show indentation guides</td></tr>
  <tr><td>Ctrl+Shift+B, Tab</td><td>Apple+Shift+B, Tab</td><td>Toggle use tabs or spaces</td></tr>
  <tr><td>Ctrl+Shift+B, Space</td><td>Apple+Shift+B, Space</td><td>Toggle show whitespace</td></tr>
  <tr><td>Ctrl+Shift+B, V</td><td>Apple+Shift+B, V</td><td>Toggle use virtual space</td></tr>
  <tr><td>Ctrl+L</td><td>Ctrl+L</td><td>Select lexer</td></tr>
  <tr><td>F5</td><td>F5</td><td>Refresh syntax highlighting</td></tr>
  <tr><td colspan='3'><strong>Split Views</strong></td></tr>
  <tr><td>Ctrl+Alt+V, N</td><td>Ctrl+V, N</td><td>Next view</td></tr>
  <tr><td>Ctrl+Alt+V, P</td><td>Ctrl+V, P</td><td>Prev view</td></tr>
  <tr><td>Ctrl+Alt+V, S</td><td>Ctrl+V, S</td><td>Split view horizontal</td></tr>
  <tr><td>Ctrl+Alt+V, Shift+S</td><td>Ctrl+V, Shift+S</td><td>Split view vertica</td></tr>
  <tr><td>Ctrl+Alt+V, W</td><td>Ctrl+V, W</td><td>Unsplit view</td></tr>
  <tr><td>Ctrl+Alt+V, Shift+W</td><td>Ctrl+V, Shift+W</td><td>Unsplit all views</td></tr>
  <tr><td>None</td><td>None</td><td>Grow split view</td></tr>
  <tr><td>None</td><td>None</td><td>Shrink split view</td></tr>
  <tr><td>Ctrl+Plus</td><td>Ctrl+Plus</td><td>Zoom in</td></tr>
  <tr><td>Ctrl+Minus</td><td>Ctrl+Minus</td><td>Zoom out</td></tr>
  <tr><td>Ctrl+0</td><td>Ctrl+0</td><td>Zoom normal</td></tr>
  <tr><td colspan='3'><strong>Movement</strong></td></tr>
  <tr><td>Right</td><td>Right<br/>Ctrl+F</td><td>Next character</td></tr>
  <tr><td>Shift+Right</td><td>Shift+Right<br/>Ctrl+Shift+F</td><td>Select next character</td></tr>
  <tr><td>Ctrl+Right</td><td>Ctrl+Right<br/>Ctrl+Apple+F</td><td>Next word</td></tr>
  <tr><td>Ctrl+Shift+Right</td><td>Ctrl+Shift+Right<br/>Ctrl+Apple+Shift+F</td><td>Select next word</td></tr>
  <tr><td>Alt+Shift+Right</td><td>Apple+Shift+Right</td><td>Rectangular select next character</td></tr>
  <tr><td>Left</td><td>Left<br/>Ctrl+B</td><td>Prev character</td></tr>
  <tr><td>Shift+Left</td><td>Shift+Left<br/>Ctrl+Shift+B</td><td>Select prev character</td></tr>
  <tr><td>Ctrl+Left</td><td>Ctrl+Left<br/>Ctrl+Apple+B</td><td>Prev word</td></tr>
  <tr><td>Ctrl+Shift+Left</td><td>Ctrl+Shift+Left<br/>Ctrl+Apple+Shift+B</td><td>Select prev word</td></tr>
  <tr><td>Alt+Shift+Left</td><td>Apple+Shift+Left</td><td>Rectangular select prev character</td></tr>
  <tr><td>Down</td><td>Down<br/>Ctrl+N</td><td>Next line</td></tr>
  <tr><td>Shift+Down</td><td>Shift+Down<br/>Ctrl+Shift+N</td><td>Select next line</td></tr>
  <tr><td>Ctrl+Down</td><td>Ctrl+Down</td><td>Scroll line down</td></tr>
  <tr><td>Ctrl+Shift+Down</td><td>Ctrl+Shift+Down</td><td>Rectangular select next line</td></tr>
  <tr><td>Up</td><td>Up<br/>Ctrl+P</td><td>Next character</td></tr>
  <tr><td>Shift+Up</td><td>Shift+Up<br/>Ctrl+Shift+P</td><td>Select prev line</td></tr>
  <tr><td>Ctrl+Up</td><td>Ctrl+Up</td><td>Scroll line up</td></tr>
  <tr><td>Ctrl+Shift+Up</td><td>Ctrl+Shift+Up</td><td>Rectangular select prev line</td></tr>
  <tr><td>Home</td><td>Home<br/>Ctrl+A</td><td>Goto beginning of line</td></tr>
  <tr><td>Shift+Home</td><td>Shift+Home<br/>Ctrl+Shift+A</td><td>Select to beginning of line</td></tr>
  <tr><td>Ctrl+Home</td><td>Ctrl+Home</td><td>Goto document start</td></tr>
  <tr><td>Ctrl+Shift+Home</td><td>Ctrl+Shift+Home</td><td>Select to file start</td></tr>
  <tr><td>Alt+Shift+Home</td><td>Apple+Shift+Home</td><td>Rectangular select to beginning of line</td></tr>
  <tr><td>End</td><td>End<br/>Ctrl+E</td><td>Goto end of line</td></tr>
  <tr><td>Shift+End</td><td>Shift+End<br/>Ctrl+Shift+E</td><td>Select to end of line</td></tr>
  <tr><td>Ctrl+End</td><td>Ctrl+End</td><td>Goto file end</td></tr>
  <tr><td>Ctrl+Shift+End</td><td>Ctrl+Shift+End</td><td>Select to file end</td></tr>
  <tr><td>Alt+Shift+End</td><td>Apple+Shift+End</td><td>Rectangular select to end of line</td></tr>
  <tr><td>Backspace<br/>Shift+Backspace</td><td>Backspace<br/>Shift+Backspace<br/>Ctrl+H</td><td>Delete previous character</td></tr>
  <tr><td>Ctrl+Backspace</td><td>Ctrl+Backspace<br/>Ctrl+Apple+H</td><td>Delete previous word</td></tr>
  <tr><td>Ctrl+Shift+Backspace</td><td>Ctrl+Shift+Backspace</td><td>Delete to beginning of line</td></tr>
  <tr><td>Del</td><td>Del<br/>Ctrl+D</td><td>Delete next character</td></tr>
  <tr><td>Ctrl+Del</td><td>Ctrl+Del<br/>Ctrl+Apple+D</td><td>Delete next word</td></tr>
  <tr><td>Ctrl+Shift+Del</td><td>Ctrl+Shift+Del</td><td>Delete to end of line</td></tr>
  <tr><td>Page Up</td><td>Page Up</td><td>Page up</td></tr>
  <tr><td>Shift+Page Up</td><td>Shift+Page Up</td><td>Select page up</td></tr>
  <tr><td>Alt+Shift+Page Up</td><td>Apple+Shift+Page Up</td><td>Rectangular select page up</td></tr>
  <tr><td>Page Down</td><td>Page Down</td><td>Page down</td></tr>
  <tr><td>Shift+Page Down</td><td>Shift+Page Down</td><td>Select page down</td></tr>
  <tr><td>Alt+Shift+Page Down</td><td>Apple+Shift+Page Down</td><td>Rectangular select page down</td></tr>
</table>

## Lua Patterns

The following is taken from the
[Lua 5.1 Reference Manual](http://www.lua.org/manual/5.1/manual.html#5.4.1).

_Character Class:_

A character class is used to represent a set of characters. The following
combinations are allowed in describing a character class:

* **_`x`_:** (where _x_ is not one of the magic characters `^$()%.[]*+-?`)
  represents the character _x_ itself.
* **`.`:** (a dot) represents all characters.
* **`%a`:** represents all letters.
* **`%c`:** represents all control characters.
* **`%d`:** represents all digits.
* **`%l`:** represents all lowercase letters.
* **`%p`:** represents all punctuation characters.
* **`%s`:** represents all space characters.
* **`%u`:** represents all uppercase letters.
* **`%w`:** represents all alphanumeric characters.
* **`%x`:** represents all hexadecimal digits.
* **`%z`:** represents the character with representation 0.
* **`%`_`x`_:** (where _x_ is any non-alphanumeric character) represents the
  character _x_. This is the standard way to escape the magic characters. Any
  punctuation character (even the non magic) can be preceded by a '`%`' when
  used to represent itself in a pattern.
* **`[set]`:** represents the class which is the union of all characters in set.
  A range of characters can be specified by separating the end characters of the
  range with a '`-`'. All classes `%`_x_ described above can also be used as
  components in set. All other characters in set represent themselves. For
  example, `[%w_]` (or `[_%w]`) represents all alphanumeric characters plus the
  underscore, `[0-7]` represents the octal digits, and `[0-7%l%-]` represents
  the octal digits plus the lowercase letters plus the '`-`' character.
  <br /><br />
  The interaction between ranges and classes is not defined. Therefore, patterns
  like `[%a-z]` or `[a-%%]` have no meaning.
* **`[^set]`:** represents the complement of _set_, where _set_ is interpreted
  as above.

For all classes represented by single letters (`%a`, `%c`, etc.), the
corresponding uppercase letter represents the complement of the class. For
instance, `%S` represents all non-space characters.

The definitions of letter, space, and other character groups depend on the
current locale. In particular, the class `[a-z]` may not be equivalent to `%l`.

_Pattern Item:_

A _pattern item_ can be

* a single character class, which matches any single character in the class;
* a single character class followed by '`*`', which matches 0 or more
  repetitions of characters in the class. These repetition items will always
  match the longest possible sequence;
* a single character class followed by '`+`', which matches 1 or more
  repetitions of characters in the class. These repetition items will always
  match the longest possible sequence;
* a single character class followed by '`-`', which also matches 0 or more
  repetitions of characters in the class. Unlike '`*`', these repetition items
  will always match the _shortest_ possible sequence;
* a single character class followed by '`?`', which matches 0 or 1 occurrence of
  a character in the class;
* `%n`, for _n_ between 1 and 9; such item matches a substring equal to the
  _n_-th captured string (see below);
* `%bxy`, where _x_ and _y_ are two distinct characters; such item matches
  strings that start with _x_, end with _y_, and where the _x_ and _y_ are
  balanced. This means that, if one reads the string from left to right,
  counting +_1_ for an _x_ and -_1_ for a _y_, the ending _y_ is the first _y_
  where the count reaches 0. For instance, the item `%b()` matches expressions
  with balanced parentheses.

_Pattern:_

A _pattern_ is a sequence of pattern items. A '`^`' at the beginning of a
pattern anchors the match at the beginning of the subject string. A '`$`' at the
end of a pattern anchors the match at the end of the subject string. At other
positions, '`^`' and '`$`' have no special meaning and represent themselves.

_Captures:_

A pattern can contain sub-patterns enclosed in parentheses; they describe
_captures_. When a match succeeds, the substrings of the subject string that
match captures are stored (_captured_) for future use. Captures are numbered
according to their left parentheses. For instance, in the pattern
`"(a*(.)%w(%s*))"`, the part of the string matching `"a*(.)%w(%s*)"` is stored
as the first capture (and therefore has number 1); the character matching "`.`"
is captured with number 2, and the part matching "`%s*`" has number 3.

As a special case, the empty capture `()` captures the current string position
(a number). For instance, if we apply the pattern `"()aa()"` on the string
`"flaaap"`, there will be two captures: 3 and 5.

A pattern cannot contain embedded zeros. Use `%z` instead.