我的正则表达式不匹配，我不能确定为什么

问题描述：

1 N [51]Gone Girl [52]Fox $37,513,109 - 3,014 - $12,446 $37,513,109 $61 1 
2 N [53]Annabelle [54]WB (NL) $37,134,255 - 3,185 - $11,659 $37,134,255 $6.5 1 
3 1 [55]The Equalizer [56]Sony $18,750,375 -45.1% 3,236 - $5,794 $64,236,992 $55 2 
4 3 [57]The Boxtrolls [58]Focus $11,979,588 -30.7% 3,464 - $3,458 $32,093,796 $60 2 
5 2 [59]The Maze Runner [60]Fox $11,634,764 -33.3% 3,605 -33 $3,227 $73,556,159 $34 3 
6 N [61]Left Behind (2014) [62]Free $6,300,147 - 1,825 - $3,452 $6,300,147 $16 1 
7 4 [63]This is Where I Leave You [64]WB $4,009,345 -41.8% 2,735 -133 $1,466 $29,012,573 $19.8 3 
8 5 [65]Dolphin Tale 2 [66]WB $3,422,377 -28.5% 2,790 -586 $1,227 $37,866,130 $36 4

下面是我用的是韩元正则表达式似乎没有匹配。任何人都可以找出原因

if ($allData =~ /(\d+)\s+(\d+|[N])\s+(\[\d+\])(.+)\s+(\[\d+\])(.+)\s+(\$\.+)\s+(\-|\+\d+\.\d+%|\-\d+\.\d+%)\s+(\d+)\s+(\-\d+|\-|\+\d+)\s+(\$\.+)\s+(\$\.+)\s+(\.+)\s+(\d+)/g) 
{ 

$current[$i] = $1; 
$last[$i] = $2; 
$title[$i] = $4; 
$week[$i] = $7; 
$cume[$i] = $12; 

printf("%-4s%-4s%-35s%-10s%-10s", $current[$i], $last[$i], $title[$i], $week[$i], $cume[$i]); 

if ($last[$i] ne '-'){ 
    $gain = $last[$i] - $current[$i]; 
} 

if ($gain < $bigloss){ 
    $bigloss = $gain; 
    $losstitle = $title[$i]; 
} 

if ($gain > $biggain){ 
    $biggain = $gain; 
    $gaintitle = $title[$i]; 
} 

if ($last[$i] eq '-'){ 

    if ($current[$i] < $bigdebut){ 
     $bigdebut = $current[$i]; 
     $bigdebuttitle = $title[$i]; 
    } 

    if ($current[$i] > $weakdebut){ 
     $weakdebut = $current[$i]; 
     $weakdebuttitle = $title[$i]; 
    } 
} 
$i++; 
}

尝试使用可视化正则表达式工具，如http://regex101.com/ – tinkertime 2014-10-09 19:12:12

我没有看到perl的选项。 python/java中的正则表达式与perl处理相同吗？ – Neonjoe 2014-10-09 19:18:13

我只是将它设置在python上，并且能够逐个扫描每个捕获，直到我能够创建匹配。感谢您的网站，我知道这将非常方便。我的全局匹配字符前面有一些错位的转义字符，这使得它寻找字面字符。感谢一群 – Neonjoe 2014-10-09 19:26:51

答

可能是修复 -

# /(\d+)\s+(\d+|[N])\s+(\[\d+\])(.+?)\s+(\[\d+\])(.+?)\s+(\$.+?)\s+(\-|\+\d+\.\d+%|\-\d+\.\d+%)\s+([\d,]+)\s+(\-\d+|\-|\+\d+)\s+(\$.+?)\s+(\$.+?)\s+(.+?)\s+(\d+)/g 

(\d+)       # (1) 
\s+ 
(\d+ | [N])      # (2) 
\s+ 
(\[ \d+ \])      # (3) 
(.+?)       # (4) 
\s+ 
(\[ \d+ \])      # (5) 
(.+?)       # (6) 
\s+ 
(\$ .+?)       # (7) 
\s+ 
(         # (8 start) 
     \- 
    | \+ \d+ \. \d+ % 
    | \- \d+ \. \d+ % 
)         # (8 end) 
\s+ 
([\d,]+)       # (9) 
\s+ 
(\- \d+ | \- | \+ \d+)   # (10) 
\s+ 
(\$ .+?)       # (11) 
\s+ 
(\$ .+?)       # (12) 
\s+ 
(.+?)       # (13) 
\s+ 
(\d+)       # (14)

输出样本：

** Grp 0 - (pos 506 , len 98) 
7 4 [63]This is Where I Leave You [64]WB $4,009,345 -41.8% 2,735 -133 $1,466 $29,012,573 $19.8 3 
** Grp 1 - (pos 506 , len 1) 
7 
** Grp 2 - (pos 508 , len 1) 
4 
** Grp 3 - (pos 510 , len 4) 
[63] 
** Grp 4 - (pos 514 , len 25) 
This is Where I Leave You 
** Grp 5 - (pos 540 , len 4) 
[64] 
** Grp 6 - (pos 544 , len 2) 
WB 
** Grp 7 - (pos 547 , len 10) 
$4,009,345 
** Grp 8 - (pos 558 , len 6) 
-41.8% 
** Grp 9 - (pos 565 , len 5) 
2,735 
** Grp 10 - (pos 571 , len 4) 
-133 
** Grp 11 - (pos 578 , len 6) 
$1,466 
** Grp 12 - (pos 585 , len 11) 
$29,012,573 
** Grp 13 - (pos 597 , len 5) 
$19.8 
** Grp 14 - (pos 603 , len 1) 
3

这个正则表达式工作出色 – Neonjoe 2014-10-09 21:52:13

答

试试这个正则表达式：

\d\s[A-Z0-9]\s\[\d\d\][A-Z][a-z]+(\s\b\w+\b){0,}\s(\(\d+\)\s)?\[\d\d\][A-Z]+[a-z]*\s(\(\w+\)\s)?\$(\d{1,3},){2}\d{3}\s-\s?\d+[,.]\d+((%\s\d,\d{1,3}\s-\s?\$?\d{1,3}(,\d{1,3}\s)?)|\s-\s\$\d{1,3},\d{1,3}\s)\s?\$\d{1,3},\d{1,3}(,\d{1,3})*\s\$\d{1,3}(,\d{1,3})*(\.\d+)?(\s\$\d+(\.)?\d+)?\s\d

这里：http://regexr.com/39m54

我的正则表达式不匹配，我不能确定为什么

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