Question

我需要找到希腊字符并替换相应的值及其替换的计数数字：（我需要从100多个替换字符中获取该字符）

这是我的编码：

use strict;
use warnings;

my @grkChars = qw(alpha beta gamma); 
my $eachGrk = join "|", @grkChars;  #Greek Characters

my $str = 'Trp $\mathbf{R}^a$ locates \alpha \beta distantly $\mathrm{R}^a$ from $\mathit{R}^a$ cys25 in both \gamma and cathepsin K, with \alpha high and moderate $\mathbb{R}^1H$ strengths, respectively. The protein $\mathds{R}^a$ modification $\mathds{R}^1H$ largely \beta affects the binding sites and stability \gamma of the \gamma peptides, and the effects depend on \alpha the elemental compositions of the peptides';

my $count = $str=~s{\\($eachGrk)}{\\\{$1\}}g && print "Content: $&\n";

print "Total Count: $count\n";

我的输出：

Content: \alpha
Total Count: 1

预期输出为：

\alpha changed to \{alpha} and count 3
\beta changed to \{{beta}} and count 2
\gamma changed to \[gamma] and count 3

您能不能请有人对此提出建议。预先感谢。

Answer 1

尽管您可以执行类似创建 executable 替换操作的操作，该替换操作会增加哈希字段而不是全局$count变量。最好保持简单。如果要单独计算单词，则需要单独替换单词。不用创建复合正则表达式模式，而只需遍历单词数组

use strict;
use warnings;

my @grkChars = qw/ alpha beta gamma /;

my $str = 'Trp $\mathbf{R}^a$ locates \alpha \beta distantly $\mathrm{R}^a$ from $\mathit{R}^a$ cys25 in both \gamma and cathepsin K, with \alpha high and moderate $\mathbb{R}^1H$ strengths, respectively. The protein $\mathds{R}^a$ modification $\mathds{R}^1H$ largely \beta affects the binding sites and stability \gamma of the \gamma peptides, and the effects depend on \alpha the elemental compositions of the peptides';

my $total = 0;

for my $grk ( @grkChars ) {

    next unless my $count = $str =~ s{\\($grk)}{\\\{$1\}}g;

    printf "\\%s changed to \\{%s} and count %d\n", $1, $1, $count;
    $total += $count;
}

print "Total Count: $total\n";

如何推送1）查找内容，2）替换内容和3）计数

1 个答案: