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hacked around the lack of a reasonable php getopt_long by writing a

new version in PHP. it seems to work, and is more flexible than the
getopt() found in PHP 5.3+.
tags/v0.99.beta17
Ben Wiley Sittler bsittler 16 years ago
parent
commit
32e5ad4d05
1 changed files with 211 additions and 39 deletions
  1. +211
    -39
      caca-php/examples/img2txt.php

+ 211
- 39
caca-php/examples/img2txt.php View File

@@ -19,6 +19,182 @@ if (php_sapi_name() != "cli") {
die("You have to run this program with php-cli!\n");
}

class MygetoptException extends Exception
{
}

$myoptind = 0;

function mygetopt($shortopts, $longopts)
{
global $argc, $argv, $myoptind;
if($myoptind < 0)
{
$myoptind = 0;
}
if(($myoptind + 1) >= $argc)
{
return NULL;
}
$myoptind ++;
$nextarg = $argv[$myoptind];
$ret = NULL;
if((substr($nextarg, 0, 1) != '-')
||
($nextarg == '-'))
{
$myoptind = $argc - 1;
}
else
{
$skipopt = $myoptind;
$skipopts = 1;
if($nextarg == '--')
{
$myoptind = $argc - 1;
}
else
{
$opt = NULL;
$arg = NULL;
foreach($longopts as $longopt)
{
$optional = false;
$hasarg = false;
if(($longopt != '::') && substr($longopt, -2) == '::')
{
$optional = true;
$hasarg = true;
$longopt = substr($longopt, 0, -2);
}
else if(($longopt != ':') && substr($longopt, -1) == ':')
{
$optional = false;
$hasarg = true;
$longopt = substr($longopt, 0, -1);
}
if($nextarg == ('--' . $longopt))
{
$opt = '--' . $longopt;
if($hasarg && ! $optional)
{
if(($myoptind + 1) < $argc)
{
$myoptind ++;
$skipopts ++;
$arg = $argv[$myoptind];
}
else
{
throw new MygetoptException("option \"$opt\" requires an argument");
}
}
break;
}
else if(substr($nextarg, 0, strlen('--' . $longopt . '='))
==
('--' . $longopt . '='))
{
$opt = '--' . $longopt;
$arg = substr($nextarg, strlen($opt . '='));
if(! $hasarg)
{
throw new MygetoptException("option \"$opt\" does not allow an argument");
}
break;
}
}
if($opt === NULL)
{
for($i = 0; $i < strlen($shortopts); $i ++)
{
$optional = false;
$hasarg = false;
$shortopt = substr($shortopts, $i, 1);
if(substr($shortopts, $i + 1, 2) == '::')
{
$optional = true;
$hasarg = true;
$i += 2;
}
else if(substr($shortopts, $i + 1, 1) == ':')
{
$hasarg = true;
}
if($nextarg
==
('-' . $shortopt))
{
$opt = '-' . $shortopt;
if($hasarg && ! $optional)
{
if(($myoptind + 1) < $argc)
{
$myoptind ++;
$skipopts ++;
$arg = $argv[$myoptind];
}
else
{
throw new MygetoptException("option \"$opt\" requires an argument");
}
}
break;
}
else if(substr($nextarg, 0, strlen('-' . $shortopt))
==
('-' . $shortopt))
{
$opt = '-' . $shortopt;
if($hasarg)
{
$arg = substr($nextarg, strlen($opt));
}
else
{
$argv[$myoptind] = '-' . substr($nextarg, strlen($opt));
$myoptind --;
$skipopts = 0;
}
}
}
}
if($opt === NULL)
{
if(substr($nextarg, 0, strlen('--')) == '--')
{
$longopt = substr($nextarg, strlen('--'));
if(strpos($longopt, '=') !== false)
{
$longopt = substr($longopt, 0, strpos($longopt, '='));
}
throw new MygetoptException("option \"--$longopt\" is not recognized");
}
$shortopt = substr($nextarg, strlen('-'), 1);
throw new MygetoptException("option \"-$shortopt\" is not recognized");
}
$ret = array($opt, $arg);
}
if ($skipopts > 0)
{
for($i = 0; $i < $argc; $i ++)
{
if(($i < $skipopt) || ($i >= ($skipopt + $skipopts)))
{
$new_argv[] = $argv[$i];
}
}
if($myoptind >= $skipopt)
{
$myoptind -= $skipopts;
}
$argv = $new_argv;
$argc = count($argv);
}
}
return $ret;
}

function usage($argc, $argv)
{
fprintf(STDERR, "Usage: %s [OPTIONS]... <IMAGE>\n", $argv[0]);
@@ -73,73 +249,63 @@ function main()
$dither = NULL;
$gamma = $brightness = $contrast = -1.0;

if($argc < 2)
{
fprintf(STDERR, "%s: wrong argument count\n", $argv[0]);
usage($argc, $argv);
return 1;
}

$long_options = array(
"width:" => 'W',
"height:" => 'H',
"font-width:" => 'x',
"font-height:" => 'y',
"format:" => 'f',
"dither:" => 'd',
"gamma:" => 'g',
"brightness:" => 'b',
"contrast:" => 'c',
"help" => 'h',
"version" => 'v'
"width:" => 'W',
"height:" => 'H',
"font-width:" => 'x',
"font-height:" => 'y',
"format:" => 'f',
"dither:" => 'd',
"gamma:" => 'g',
"brightness:" => 'b',
"contrast:" => 'c',
"help" => 'h',
"version" => 'v'
);
$options = getopt("W:H:f:d:g:b:c:hvx:y:", array_keys($long_options));
if (! $options)
{
/* PHP before 5.3 or so does not have long option support in
* most cases */
$options = getopt("W:H:f:d:g:b:c:hvx:y:");
}

foreach($options as $opt => $arg)
while($opt_and_arg = mygetopt("W:H:f:d:g:b:c:hvx:y:", array_keys($long_options)))
{
if (array_key_exists($opt + (isset($arg) ? ':' : ''), $long_options))
$opt = $opt_and_arg[0];
$arg = $opt_and_arg[1];
if((substr($opt, 0, 2) == '--')
&&
array_key_exists(substr($opt, strlen('--')) . (($arg !== NULL) ? ':' : ''), $long_options))
{
$opt = $long_options[$opt + (isset($arg) ? ':' : '')];
$opt = '-' . $long_options[substr($opt, strlen('--')) . (($arg !== NULL) ? ':' : '')];
}
switch($opt)
{
case 'W': /* --width */
case '-W': /* --width */
$cols = intval($arg);
break;
case 'H': /* --height */
case '-H': /* --height */
$lines = intval($arg);
break;
case 'x': /* --width */
case '-x': /* --width */
$font_width = intval($arg);
break;
case 'y': /* --height */
case '-y': /* --height */
$font_height = intval($arg);
break;
case 'f': /* --format */
case '-f': /* --format */
$format = $arg;
break;
case 'd': /* --dither */
case '-d': /* --dither */
$dither = $arg;
break;
case 'g': /* --gamma */
case '-g': /* --gamma */
$gamma = floatval($arg);
break;
case 'b': /* --brightness */
case '-b': /* --brightness */
$brightness = floatval($arg);
break;
case 'c': /* --contrast */
case '-c': /* --contrast */
$contrast = floatval($arg);
break;
case 'h': /* --help */
case '-h': /* --help */
usage($argc, $argv);
return 0;
case 'v': /* --version */
case '-v': /* --version */
version();
return 0;
default:
@@ -147,6 +313,12 @@ function main()
}
}

if($argc != 2)
{
fprintf(STDERR, "%s: wrong argument count\n", $argv[0]);
usage($argc, $argv);
return 1;
}

$cv = caca_create_canvas(0, 0);
if(!$cv)


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