Phosphorus and Lime
A Developer's Broadsheet
This blog has been deprecated. Please visit my new blog at klenwell.com/press.
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Name: klenwell
Home: San Diego, California, United States
About Me: designer, programmer, wordsmith
Sunday, April 27, 2008
PHP str_to_word Challenge
This is the challenge I faced: tokenize a string into words. Easy enough you say, just use one of the many built-in PHP functions, like str_count_words(). But now, do it successfully with a string like this:
I think I've found the solution:
Result:
Of course, there are a few fringe cases it won't. And bear in mind that it's about 200x slower than str_count_words(). Fortunately, it's still fast enough for my purposes.
I 'said', "This is my test's string of over '8.8' words.About 16 to be ex-act!"
I think I've found the solution:
function str_to_words($str)
{
$re = '%[^A-Za-z0-9\-\'\.]+|([A-Za-z]+)\.([A-Za-z]+)%';
$CHR = str_split('abcdefghijklmnopqrstuvwxyz0123456789');
$W = preg_split($re, $str, -1, PREG_SPLIT_NO_EMPTY|PREG_SPLIT_DELIM_CAPTURE);
// make sure first and last characters are alphanumeric
// do we sacrifice ' in plural possessive (e.g. the girls' toys)? no
foreach ( $W as $w0 )
{
$w1 = ( !in_array(strtolower(substr($w0,0,1)),$CHR) ) ? substr($w0,1) : $w0;
$w1 = ( !in_array(strtolower(substr($w1,-1)),$CHR + array("'")) ) ? substr($w1,0,-1) : $w1;
$WORDS[] = $w1;
}
return $WORDS;
}
{
$re = '%[^A-Za-z0-9\-\'\.]+|([A-Za-z]+)\.([A-Za-z]+)%';
$CHR = str_split('abcdefghijklmnopqrstuvwxyz0123456789');
$W = preg_split($re, $str, -1, PREG_SPLIT_NO_EMPTY|PREG_SPLIT_DELIM_CAPTURE);
// make sure first and last characters are alphanumeric
// do we sacrifice ' in plural possessive (e.g. the girls' toys)? no
foreach ( $W as $w0 )
{
$w1 = ( !in_array(strtolower(substr($w0,0,1)),$CHR) ) ? substr($w0,1) : $w0;
$w1 = ( !in_array(strtolower(substr($w1,-1)),$CHR + array("'")) ) ? substr($w1,0,-1) : $w1;
$WORDS[] = $w1;
}
return $WORDS;
}
Result:
Array
(
[0] => I
[1] => said
[2] => This
[3] => is
[4] => my
[5] => test's
[6] => string
[7] => of
[8] => over
[9] => 8.8
[10] => words
[11] => About
[12] => 16
[13] => to
[14] => be
[15] => ex-act
)
(
[0] => I
[1] => said
[2] => This
[3] => is
[4] => my
[5] => test's
[6] => string
[7] => of
[8] => over
[9] => 8.8
[10] => words
[11] => About
[12] => 16
[13] => to
[14] => be
[15] => ex-act
)
Of course, there are a few fringe cases it won't. And bear in mind that it's about 200x slower than str_count_words(). Fortunately, it's still fast enough for my purposes.
Labels: php
Friday, April 25, 2008
Komodo Edit Macros
Well, as soon as I had settled upon gvim as my new editor de riguer, a friend at work pointed me to Komodo Edit. Now this is what I was looking for. What a weight off my mind.
Never been a big macro-head, but there's a couple things I wanted to do that you can't do through the preferences menu alone. So I figured out a couple tricks and wrote the following macros. (What is cool is that you can use either javascript or python for the macros. Sweet!)
add html comment
this will wrap any select text like so:
The same principle can be applied to many situations:
echo php inline
Add a key-binding through the properties menu and you're a rockstar.
Never been a big macro-head, but there's a couple things I wanted to do that you can't do through the preferences menu alone. So I figured out a couple tricks and wrote the following macros. (What is cool is that you can use either javascript or python for the macros. Sweet!)
add html comment
// comment_html: <!-- {|} -->
// author: klenwell@gmail.com
komodo.assertMacroVersion(2);
var addLeft = '<!-- ';
var addRight = ' -->';
var currentPos = komodo.editor.currentPos;
var selText = komodo.editor.selText;
var newText = addLeft + selText + addRight;
var selTextPos = currentPos - selText.length + newText.length;
var noSelTextPos = currentPos + newText.length - addRight.length;
var newPos = ( selText != '' ) ? selTextPos : noSelTextPos;
if (komodo.view.scintilla) { komodo.view.scintilla.focus(); }
//if (komodo.view) { komodo.view.setFocus() };
komodo.view.selection = newText;
komodo.editor.gotoPos(newPos);
komodo.view.selection = '';
// author: klenwell@gmail.com
komodo.assertMacroVersion(2);
var addLeft = '<!-- ';
var addRight = ' -->';
var currentPos = komodo.editor.currentPos;
var selText = komodo.editor.selText;
var newText = addLeft + selText + addRight;
var selTextPos = currentPos - selText.length + newText.length;
var noSelTextPos = currentPos + newText.length - addRight.length;
var newPos = ( selText != '' ) ? selTextPos : noSelTextPos;
if (komodo.view.scintilla) { komodo.view.scintilla.focus(); }
//if (komodo.view) { komodo.view.setFocus() };
komodo.view.selection = newText;
komodo.editor.gotoPos(newPos);
komodo.view.selection = '';
this will wrap any select text like so:
<!-- {select text} --> or add an empty wrapper with the cursor in the middle: <!-- | -->The same principle can be applied to many situations:
echo php inline
// echo_php_inline: <?php echo {|} ?>
// author: klenwell@gmail.com
komodo.assertMacroVersion(2);
var pcmd = 'echo'; // echo or print
var addLeft = '<?php '+pcmd+' ';
var addRight = '; ?>';
var currentPos = komodo.editor.currentPos;
var selText = komodo.editor.selText;
var newText = addLeft + selText + addRight;
var selTextPos = currentPos - selText.length + newText.length -3;
var noSelTextPos = currentPos + newText.length - addRight.length;
var newPos = ( selText != '' ) ? selTextPos : noSelTextPos;
if (komodo.view.scintilla) { komodo.view.scintilla.focus(); }
//if (komodo.view) { komodo.view.setFocus() };
komodo.view.selection = newText;
komodo.editor.gotoPos(newPos);
komodo.view.selection = '';
// author: klenwell@gmail.com
komodo.assertMacroVersion(2);
var pcmd = 'echo'; // echo or print
var addLeft = '<?php '+pcmd+' ';
var addRight = '; ?>';
var currentPos = komodo.editor.currentPos;
var selText = komodo.editor.selText;
var newText = addLeft + selText + addRight;
var selTextPos = currentPos - selText.length + newText.length -3;
var noSelTextPos = currentPos + newText.length - addRight.length;
var newPos = ( selText != '' ) ? selTextPos : noSelTextPos;
if (komodo.view.scintilla) { komodo.view.scintilla.focus(); }
//if (komodo.view) { komodo.view.setFocus() };
komodo.view.selection = newText;
komodo.editor.gotoPos(newPos);
komodo.view.selection = '';
Add a key-binding through the properties menu and you're a rockstar.
Monday, April 21, 2008
Cutting, Copying, and Pasting in Vim
Got a new laptop a couple weeks ago and finally jumped in the deep-end of the Linux pool. Probably the most painful part of the transition has been abandoning my reliable old html-kit editor and trying to find a new one. After a few dead-ends, I finally bit the bullet and committed to Vim (gVim to be exact). For the first few hours, I was ready to cry. But after doing some research on key-mappings, I'm starting to get the hang of it.
The biggest frustration was trying to break my Pavlovian conditioning to use Ctrl-X,-C,-V. Of course, once I figured out mapping, I could remap the keys. It is not recommended to remap Ctrl-C, so I compromised and use y like you're supposed to.
Here's the relevant portion of my .gvimrc file:
Still miss html-kit, but I'm adapting.
The biggest frustration was trying to break my Pavlovian conditioning to use Ctrl-X,-C,-V. Of course, once I figured out mapping, I could remap the keys. It is not recommended to remap Ctrl-C, so I compromised and use y like you're supposed to.
Here's the relevant portion of my .gvimrc file:
" --- KEY MAPPINGS --- "
" Visual Cut/Copy/Paste : http://www.vim.org/tips/tip.php?tip_id=866
" Cut -- using register '+' [Ctrl-o -> jump to last pos]
map "+d
vmap "+d
imap "+d
" Copy -- yank to register '+' [not needed for imode]
noremap y "+y
vnoremap y "+y
" Copy All
imap gggHG
vmap gggHGi
" Select Line
map 0v$
vmap 0v$
imap 0v$
" Paste
map "+gP
vmap "+gP
imap "+gP
" Visual Cut/Copy/Paste : http://www.vim.org/tips/tip.php?tip_id=866
" Cut -- using register '+' [Ctrl-o -> jump to last pos]
map
vmap
imap
" Copy -- yank to register '+' [not needed for imode]
noremap y "+y
vnoremap y "+y
" Copy All
imap
vmap
" Select Line
map
vmap
imap
" Paste
map
vmap
imap
Still miss html-kit, but I'm adapting.
Labels: vim
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