示例＃1：

Question

我已经能够使用来自http://www.imagemagick.org的Imagemagick从文本文件中读取数据。

我得到了

0,0: (255,255,255,  0)  #FFFFFF00  srgba(255,255,255,0)
1,0: (255,255,255,  0)  #FFFFFF00  srgba(255,255,255,0)
2,0: (255,255,255,  0)  #FFFFFF00  srgba(255,255,255,0)


40,23: (162,167, 32, 24)  #A2A72018  srgba(162,167,32,0.0941176)
41,23: (255,255,255,  0)  #FFFFFF00  srgba(255,255,255,0)
42,23: (162,166, 48, 40)  #A2A63028  srgba(162,166,48,0.156863)
43,23: (162,166, 47, 40)  #A2A62F28  srgba(162,166,47,0.156863)

我对正则表达式不熟悉我将使用哪种表达方式得到开头的坐标和最后的rgba（）。

好吧，我有点想通了正则表达式这是它的一部分

/rgba\([0-9]{1,3},[0-9]{1,3},[0-9]{1,3},[0-9]\.[0-9]{1-9}/gi

但最后一部分与rgba（）的小数部分不匹配。

好吧我知道它已经有一段时间了，我不确定我是否应该开始一个新线程

但我已经想出如何删除以删除两个中间部分，所有括号和srgba，也是零alpha的行，但不知何故，它在文本文件中留下了一个空白区域。如果有任何改进可以让任何人看到。

$fh = fopen("pcmanD.txt", "r");
$fg = fopen("pcmanJ.txt", "wt");
$new_array = ""; $parts = "";
while (!feof($fh)) {
    $line = fgets($fh);
    $lines[] = $line;
    $newword = "";
    $match1 ="/:\s?\s?\(\s?\s?\d+,\s?\s?\d+,\s?\s?\d+,\s?\s?\d+\)\s?\s?#[a-zA-Z0-9]{6,8}\s?\s?srgba/";
    $match2 ="/^\s\s?/";
    $match3 = "/\s\(/";
    $match4 = "/\)/";
    $match5 = "/[0-9]{1,3},[0-9]{1,3},[0-9]{1,3},[0-9]{1,3},[0-9]{1,3},0[^\.]/";

    $parts1 = preg_replace($match1,"", $line );
    $parts2 = preg_replace($match2,"", $parts1 );
    $parts3 = preg_replace($match3,",", $parts2 );
    $parts4 = preg_replace($match4,"", $parts3 );
    $parts5 = preg_replace($match5,"",$parts4);


    echo "<pre>";
    print_r($parts5);
    echo "</pre>";

    fwrite($fg, $parts5);
} 

fclose($fg);
fclose($fh);

但是这个代码出现了新的问题，我得到浮点数的两倍或三倍比赛结束后。

$thisisit[] = "";
$thisisit2[] = "";
$countThis = 0;
$fh = fopen("sometext.txt", "r");
$new_array = ""; $parts = "";
while (!feof($fh)) {
    $line = fgets($fh);
    $line2 = $line;
    $newword = "";
    $match1 ="/^\s*?[\d]+,[\d]+/";
    $parts1 = preg_match($match1, $line, $regs);
    foreach($regs as $key => $lame) {
        $thisisit[] = $lame;
    }
    $match2 ="/(?:(\d{1,3},\d{1,3},))(\d{1,3},\d{1,3},\d{1,3},[01][\.]?[\d]*)/";
    $parts2 = preg_match($match2, $line2, $regs2);
    foreach($regs2 as $key2 => $lame2) {
        $thisisit2[] =$lame2;
    }
    $countLame = count($thisisit);
} 

echo "</script>";
$newCounter = 0;
for($i = 0; $i < (500); $i++) {
    echo  $thisisit[$i] . "<br />";
    echo $thisisit2[$newCounter] . "<br />" ;
    $newCounter = $newCounter +4;
}
fclose($fh);

这是我正在处理的文本文件中的一些文本

 42,23,162,166,48,0.156863
 43,23,162,166,47,0.156863
 44,23,167,170,67,0.219608
 45,23,162,166,47,0.156863
 46,23,167,170,67,0.219608
 47,23,162,166,37,0.117647
 48,23,162,167,32,0.0941176
                                      86,23,163,167,40,0.12549
 87,23,160,164,47,0.164706
 88,23,188,190,122,0.352941
 86,24,233,234,197,0.486275
 87,24,251,250,250,1
 88,24,251,250,250,1
 89,24,251,250,250,1

Answer 1

> '0,0: (255,255,255,  0)'.match(/^([^:]+) *: *\(([^)]+)\)/)
[ '0,0: (255,255,255,  0)',
  '0,0',
  '255,255,255,  0',
  index: 0,
  input: '0,0: (255,255,255,  0)' ]

Answer 2

/^(\d+,\d+):.*\(([^)]*)\)$/

这应该将坐标下拉到捕获组1中，并将RGBA值下拉到组2.但是，请注意，如果对您来说这对您使用字符串操作可能更有效。您可以在:上拆分字符串以获取坐标，然后在srgba(上拆分并删除颜色值的最后一个字符。

Answer 3

示例＃1：

如果您有多行$input

代码

$input = '
    0,0: (255,255,255,  0)  #FFFFFF00  srgba(255,255,255,0)
    43,23: (162,166, 47, 40)  #A2A62F28  srgba(162,166,47,0.156863)
';
preg_match_all('~^\s*(.+?):.+srgba\((.+?)\)\s*$~m', $input, $match);
print_r($match);

输出

Array
(
    [0] => Array
        (
            [0] => 0,0: (255,255,255,  0)  #FFFFFF00  srgba(255,255,255,0)
            [1] => 43,23: (162,166, 47, 40)  #A2A62F28  srgba(162,166,47,0.156863)
        )
    [1] => Array
        (
            [0] => 0,0
            [1] => 43,23
        )
    [2] => Array
        (
            [0] => 255,255,255,0
            [1] => 162,166,47,0.156863
        )
)

示例＃2：

如果您的单行$input具有更深的正则表达式：

代码

$input = '43,23: (162,166, 47, 40)  #A2A62F28  srgba(162,166,47,0.156863)';
preg_match('~^\s*(\d+),\s*(\d+):.+srgba\(\s*(\d+),\s*(\d+),\s*(\d+),\s*(.+?)\)\s*$~m', $input, $match);
print_r($match);

输出

Array
(
    [0] => 43,23: (162,166, 47, 40)  #A2A62F28  srgba(162,166,47,0.156863)
    [1] => 43
    [2] => 23
    [3] => 162
    [4] => 166
    [5] => 47
    [6] => 0.156863
)

解析包含图像数据的文本文件

3 个答案:

示例＃1：

代码

输出

示例＃2：

代码

输出