正则表达式:从字符串中分离nn:nn

时间:2018-02-03 11:50:35

标签: php regex

我已经在这里工作了几个小时,这里的解决方案都没有真正帮助我。我有一个格式为" NN的文本文件:NN字符串在这里"。实际文件如下。我需要正则表达章节:诗歌来自实际的弦乐诗。如您所见,并非所有内容都由换行符分隔。我最接近的是(\d{1,2}:\d{1,2})[^\d]*,但它只是真正区分NN:NN。

如何完成字符串的分离?

1:1 The book of the generation of Jesus Christ, the son of David, the son of Abraham.

1:2 Abraham begat Isaac; and Isaac begat Jacob; and Jacob begat Judas and his brethren; 1:3 And Judas begat Phares and Zara of Thamar; and Phares begat Esrom; and Esrom begat Aram; 1:4 And Aram begat Aminadab; and Aminadab begat Naasson; and Naasson begat Salmon; 1:5 And Salmon begat Booz of Rachab; and Booz begat Obed of Ruth; and Obed begat Jesse; 1:6 And Jesse begat David the king; and David the king begat Solomon of her that had been the wife of Urias; 1:7 And Solomon begat Roboam; and Roboam begat Abia; and Abia begat Asa; 1:8 And Asa begat Josaphat; and Josaphat begat Joram; and Joram begat Ozias; 1:9 And Ozias begat Joatham; and Joatham begat Achaz; and Achaz begat Ezekias; 1:10 And Ezekias begat Manasses; and Manasses begat Amon; and Amon begat Josias; 1:11
And Josias begat Jechonias and his brethren, about the time they were carried away to Babylon: 1:12 And after they were brought to Babylon, Jechonias begat Salathiel; and Salathiel begat Zorobabel; 1:13 And Zorobabel begat Abiud; and Abiud begat Eliakim; and Eliakim begat Azor; 1:14 And Azor begat Sadoc; and Sadoc begat Achim; and Achim begat Eliud; 1:15 And Eliud begat Eleazar; and Eleazar begat Matthan; and Matthan begat Jacob; 1:16 And Jacob begat Joseph the husband of Mary, of whom was born Jesus, who is called Christ.

1:17 So all the generations from Abraham to David are fourteen generations; and from David until the carrying away into Babylon are fourteen generations; and from the carrying away into Babylon unto Christ are fourteen generations.

1:18 Now the birth of Jesus Christ was on this wise: When as his mother Mary was espoused to Joseph, before they came together, she was found with child of the Holy Ghost.

4 个答案:

答案 0 :(得分:1)

你很亲密。以下应该有效:

preg_match_all("/(\d{1,2}:\d{1,2})([^\d]*)/", $str, $output_array);

print_r(array_combine($output_array[1], $output_array[2]));

http://sandbox.onlinephpfunctions.com/code/e5522443d16558890431519ec6dd03a308ca1e32

答案 1 :(得分:1)

正则表达式(\d+:\d+)\R?\s*(.+?(?=\s*\d+:\d+|$))

<强>详情:

  • dp(2)匹配一个数字(等于\d
  • [0-9]匹配任何Unicode换行序列
  • \R匹配任何空格字符
  • \s匹配任何字符(行终止符除外)
  • .+?断言位于字符串末尾的位置
  • $匹配0到1次
  • ?
  • |匹配一次且无限次
  • +零和无限次之间的匹配

PHP代码

*

<强>输出

$text = "1:1 The book of the generation of Jesus Christ, the son of David, the son of Abraham............";

preg_match_all("/(\d+:\d+)\R?\s*(.+?(?=\s*\d+:\d+|$))/m", $text, $matches);
print_r(array_combine($matches[1], $matches[2]));

答案 2 :(得分:0)

这不仅速度相当快,还会修剪文本值中的所有前导/尾随空格。 *您的所有文字行都以:;.结尾。我正在利用这一事实来提高模式效率。

如果在您的真实项目中,某些句子包含换行符(您的示例没有),则在第二个模式分隔符之后添加s,以使.匹配换行符。

~(\d{1,2}:\d{1,2})\s+(.*?[:;.](?=\s*(?:\d{1,2}:\d{1,2})|$))~ 2193steps

Pattern Demo

代码:(Demo

$text="1:1 The book of the generation of Jesus Christ, the son of David, the son of Abraham.

1:2 Abraham begat Isaac; and Isaac begat Jacob; and Jacob begat Judas and his brethren; 1:3 And Judas begat Phares and Zara of Thamar; and Phares begat Esrom; and Esrom begat Aram; 1:4 And Aram begat Aminadab; and Aminadab begat Naasson; and Naasson begat Salmon; 1:5 And Salmon begat Booz of Rachab; and Booz begat Obed of Ruth; and Obed begat Jesse; 1:6 And Jesse begat David the king; and David the king begat Solomon of her that had been the wife of Urias; 1:7 And Solomon begat Roboam; and Roboam begat Abia; and Abia begat Asa; 1:8 And Asa begat Josaphat; and Josaphat begat Joram; and Joram begat Ozias; 1:9 And Ozias begat Joatham; and Joatham begat Achaz; and Achaz begat Ezekias; 1:10 And Ezekias begat Manasses; and Manasses begat Amon; and Amon begat Josias; 1:11
And Josias begat Jechonias and his brethren, about the time they were carried away to Babylon: 1:12 And after they were brought to Babylon, Jechonias begat Salathiel; and Salathiel begat Zorobabel; 1:13 And Zorobabel begat Abiud; and Abiud begat Eliakim; and Eliakim begat Azor; 1:14 And Azor begat Sadoc; and Sadoc begat Achim; and Achim begat Eliud; 1:15 And Eliud begat Eleazar; and Eleazar begat Matthan; and Matthan begat Jacob; 1:16 And Jacob begat Joseph the husband of Mary, of whom was born Jesus, who is called Christ.

1:17 So all the generations from Abraham to David are fourteen generations; and from David until the carrying away into Babylon are fourteen generations; and from the carrying away into Babylon unto Christ are fourteen generations.

1:18 Now the birth of Jesus Christ was on this wise: When as his mother Mary was espoused to Joseph, before they came together, she was found with child of the Holy Ghost.";

$pattern='/(\d{1,2}:\d{1,2})\s+(.*?[:;.](?=\s*(?:\d{1,2}:\d{1,2})|$))/';
var_export(preg_match_all($pattern,$text,$out)?array_combine($out[1],$out[2]):[]);

输出:

array (
  '1:1' => 'The book of the generation of Jesus Christ, the son of David, the son of Abraham.',
  '1:2' => 'Abraham begat Isaac; and Isaac begat Jacob; and Jacob begat Judas and his brethren;',
  '1:3' => 'And Judas begat Phares and Zara of Thamar; and Phares begat Esrom; and Esrom begat Aram;',
  '1:4' => 'And Aram begat Aminadab; and Aminadab begat Naasson; and Naasson begat Salmon;',
  '1:5' => 'And Salmon begat Booz of Rachab; and Booz begat Obed of Ruth; and Obed begat Jesse;',
  '1:6' => 'And Jesse begat David the king; and David the king begat Solomon of her that had been the wife of Urias;',
  '1:7' => 'And Solomon begat Roboam; and Roboam begat Abia; and Abia begat Asa;',
  '1:8' => 'And Asa begat Josaphat; and Josaphat begat Joram; and Joram begat Ozias;',
  '1:9' => 'And Ozias begat Joatham; and Joatham begat Achaz; and Achaz begat Ezekias;',
  '1:10' => 'And Ezekias begat Manasses; and Manasses begat Amon; and Amon begat Josias;',
  '1:11' => 'And Josias begat Jechonias and his brethren, about the time they were carried away to Babylon:',
  '1:12' => 'And after they were brought to Babylon, Jechonias begat Salathiel; and Salathiel begat Zorobabel;',
  '1:13' => 'And Zorobabel begat Abiud; and Abiud begat Eliakim; and Eliakim begat Azor;',
  '1:14' => 'And Azor begat Sadoc; and Sadoc begat Achim; and Achim begat Eliud;',
  '1:15' => 'And Eliud begat Eleazar; and Eleazar begat Matthan; and Matthan begat Jacob;',
  '1:16' => 'And Jacob begat Joseph the husband of Mary, of whom was born Jesus, who is called Christ.',
  '1:17' => 'So all the generations from Abraham to David are fourteen generations; and from David until the carrying away into Babylon are fourteen generations; and from the carrying away into Babylon unto Christ are fourteen generations.',
  '1:18' => 'Now the birth of Jesus Christ was on this wise: When as his mother Mary was espoused to Joseph, before they came together, she was found with child of the Holy Ghost.',
)

说明:

~                        #Pattern delimiter
(\d{1,2}:\d{1,2})        #Capture nn:nn as Group1
\s+                      #Match one or more whitespaces (including newlines)
(                        #Start Capture Group2
  .*?                    #Lazily match zero or more non-newline characters
  [:;.]                  #Match a colon, semi-colon, or dot
  (?=                    #Start "lookahead" (aka: match but don't consume)
    \s*                  #Match zero or more whitespace characters
    (?:\d{1,2}:\d{1,2})  #Match nn:nn
    |                    #Or
    $                    #Match the end of the entire string
  )                      #End "lookahead"
)                        #End Capture Group2
~                        #Pattern delimiter

答案 3 :(得分:-1)

Regex Lookbehind将使您的工作更轻松

/(?:\d+:\d+).*?(?=(?:\d+:\d+)|$)/s

请参阅https://regex101.com/r/5UDJOz/1