正则表达式不'；在Javascript中无法正常工作？
关于在象棋pgn字符串中的“comments”周围插入括号，我得到了极好的帮助，完成了一个分别匹配移动列表和注释的正则表达式 以下是当前的正则表达式：正则表达式不'；在Javascript中无法正常工作？,javascript,php,regex,Javascript,Php,Regex,关于在象棋pgn字符串中的“comments”周围插入括号，我得到了极好的帮助，完成了一个分别匹配移动列表和注释的正则表达式 以下是当前的正则表达式： ((?:\s?[\(\)]?\s?[\(\)]?\s?[0-9]{1,3}\.{1,3}\s[NBRQK]?[a-h1-8]?x?[a-hO][1-8-][O-]{0,3}[!?+#=]{0,2}[NBRQ]?[!?+#]{0,2}(?:\s[NBRQK]?[a-h1-8]?x?[a-hO][1-8-][O-]{0,3}[!?+#=]{0,2}[
((?:\s?[\(\)]?\s?[\(\)]?\s?[0-9]{1,3}\.{1,3}\s[NBRQK]?[a-h1-8]?x?[a-hO][1-8-][O-]{0,3}[!?+#=]{0,2}[NBRQ]?[!?+#]{0,2}(?:\s[NBRQK]?[a-h1-8]?x?[a-hO][1-8-][O-]{0,3}[!?+#=]{0,2}[NBRQ]?[!?+#]{0,2})?\s?[()]?\s?[()]?\s?)+)|((?:(?!\s?[\(\)]?\s?[\(\)]?\s?[0-9]{1,3}\.{1,3}\s[NBRQK]?[a-h1-8]?x?[a-hO][1-8-][O-]{0,3}[!?+#=]{0,2}[NBRQ]?[!?+#]{0,2}).)+)
CleanPgnTextwhilefunction CleanPgnText(pgn) {
var pgnTextEdited = '';
var str;
var pgnInputTextArea = document.getElementById("pgnTextArea");
var pgnOutputArea = document.getElementById("pgnOutputText");
str = pgnInputTextArea.value;
str = str.replace(/\[/g,"("); //sometimes he uses [ incorrectly for variations
str = str.replace(/\]/g,")");
str = str.replace(/[\n¬]*/g,""); // remove newlines and that weird character that MS Word sticks in
str = str.replace(/\s{2,}/g," "); // turn more than one space into one space
while ( str =~ /((?:\s?[\(\)]?\s?[\(\)]?\s?[0-9]{1,3}\.{1,3}\s[NBRQK]?[a-h1-8]?x?[a-hO][1-8-][O-]{0,3}[!?+#=]{0,2}[NBRQ]?[!?+#]{0,2}(?:\s[NBRQK]?[a-h1-8]?x?[a-hO][1-8-][O-]{0,3}[!?+#=]{0,2}[NBRQ]?[!?+#]{0,2})?\s?[()]?\s?[()]?\s?)+)|((?:(?!\s?[\(\)]?\s?[\(\)]?\s?[0-9]{1,3}\.{1,3}\s[NBRQK]?[a-h1-8]?x?[a-hO][1-8-][O-]{0,3}[!?+#=]{0,2}[NBRQ]?[!?+#]{0,2})[^\)\(])+)|((?:\)\s\())/g ) {
if ($1.length > 0) { //
pgnTextEdited += $1;
}
else if ($2.length > 0) {
pgnTextEdited += '{' + $2 + '}';
}
else if ($3.length > 0) {
pgnTextEdited += $3;
}
}
pgnOutputArea.innerHTML = pgnTextEdited;
}
while=~while ( str =~
=~=~if ($1.length > 0)
（如果regex101链接对您不起作用，您可以从原始线程中获取一个示例pgn进行测试）。我更正了您的javascript代码，并获得以下内容：
=~nullmatchmatch[2]我在看你的新正则表达式，它不太正确。尽管它看起来与@wumpz的JS代码一起工作，
你不能只在评论部分排除父母的意见，因为你是
仅匹配字符串文字
）（这可能会将parenths排除在匹配之外，因为它不会成为新闻字符串的一部分
这是构造的。不太可能，因为移动与父项匹配 要解决这个问题，只需从注释中排除'（`），然后首先匹配它（组1）。
此外，我还留下了一些关于新正则表达式所做更改的注释。
试试看。我认为@wumpz值得称赞
# /(\)\s*\()|((?:\s?[()]?\s?[()]?\s?[0-9]{1,3}\.{1,3}\s[NBRQK]?[a-h1-8]?x?[a-hO][1-8-][O-]{0,3}[!?+#=]{0,2}[NBRQ]?[!?+#]{0,2}(?:\s[NBRQK]?[a-h1-8]?x?[a-hO][1-8-][O-]{0,3}[!?+#=]{0,2}[NBRQ]?[!?+#]{0,2})?\s?[()]?\s?[()]?\s?)+)|((?:(?!\s?[()]?\s?[()]?\s?[0-9]{1,3}\.{1,3}\s[NBRQK]?[a-h1-8]?x?[a-hO][1-8-])(?!\)\s*\()[\S\s])+)/
( \) \s* \( ) # (1), 'Special Comment' configuration (must match first)
| # OR,
( # (2 start), 'Moves' configuration
(?:
\s?
[()]? \s? [()]?
\s?
[0-9]{1,3} \.{1,3}
\s
[NBRQK]? [a-h1-8]? x? [a-hO] [1-8-] [O-]{0,3} [!?+#=]{0,2} [NBRQ]?
[!?+#]{0,2}
(?:
\s
[NBRQK]? [a-h1-8]? x? [a-hO] [1-8-] [O-]{0,3} [!?+#=]{0,2} [NBRQ]? [!?+#]{0,2}
)?
\s?
[()]? \s? [()]?
\s?
)+
) # (2 end)
| # OR,
( # (3 start), 'Normal Comment' configuration
(?:
(?! # Not the 'Moves configuration'
\s?
[()]? \s? [()]?
\s?
[0-9]{1,3} \.{1,3}
\s
[NBRQK]? [a-h1-8]? x? [a-hO] [1-8-]
# ----
# Next line is not needed
# because all its items are
# optional
# ----
### [O-]{0,3} [!?+#=]{0,2} [NBRQ]? [!?+#]{0,2} <- not needed
)
### [^)(] <- replaced by '[\S\s]' below
# ----
# The above line is replaced by any char.
# because it excludes all ()'s and is not appropriate
(?! \) \s* \( ) # Also, Not the 'Sspecial comment' configuration
[\S\s] # Consume any char
)+
) # (3 end)
function CleanPgnText(pgn) {
var pgnTextEdited = '';
var str;
var pgnOutputArea = document.getElementById("pgnOutputText");
str = pgn;
str = str.replace(/\[/g, "("); //sometimes he uses [ incorrectly for variations
str = str.replace(/\]/g, ")");
str = str.replace(/[\n¬]*/g, ""); // remove newlines and that weird character that MS Word sticks in
str = str.replace(/\s{2,}/g, " "); // turn more than one space into one space
//Start regexp processing
var pattern = /(\)\s*\()|((?:\s?[()]?\s?[()]?\s?[0-9]{1,3}\.{1,3}\s[NBRQK]?[a-h1-8]?x?[a-hO][1-8-][O-]{0,3}[!?+#=]{0,2}[NBRQ]?[!?+#]{0,2}(?:\s[NBRQK]?[a-h1-8]?x?[a-hO][1-8-][O-]{0,3}[!?+#=]{0,2}[NBRQ]?[!?+#]{0,2})?\s?[()]?\s?[()]?\s?)+)|((?:(?!\s?[()]?\s?[()]?\s?[0-9]{1,3}\.{1,3}\s[NBRQK]?[a-h1-8]?x?[a-hO][1-8-])(?!\)\s*\()[\S\s])+)/g;
while ((match = pattern.exec(str)) != null) {
if (match[1] != null) { // Special Comment configuration, don't add '{}'
pgnTextEdited += match[1];
} else if (match[2] != null) { // Moves configuration
pgnTextEdited += match[2];
} else if (match[3] != null) { // Normal Comment configuration, add '{}'
pgnTextEdited += '{' + match[3] + '}';
}
}
//end regexp processing
pgnOutputArea.innerHTML = pgnTextEdited;
}