Question

我正在阅读文件并尝试按以下顺序修改它：

如果行为空trim()
如果行结束\剥离该char并添加下一行。
完整的行包含双引号，引号之间有空格，用~替换空格。例如："This is text within double quotes" 更改为："This~is~text~within~double~quotes"

此代码正在运行但有问题。当找到以\结尾的行和其他完成的行时，会出现问题。

for example: 
line 1 and \
line 2
line 3

所以没有

line 1 and line 2
line 3

我有这个：

line 1 and line 2     line 3

编码更新：

public List<String> OpenFile() throws IOException {
        try (BufferedReader br = new BufferedReader(new FileReader(path))) {
            String line;
            //StringBuilder concatenatedLine = new StringBuilder();
            List<String> formattedStrings = new ArrayList<>();
            //Pattern matcher = Pattern.compile("\"([^\"]+)\"");
        while ((line = br.readLine()) != null) {
            boolean addToPreviousLine;
            if (line.isEmpty()) {
                line.trim();

            }

            if (line.contains("\"")) {
                Matcher matcher = Pattern.compile("\"([^\"]+)\"").matcher(line);
                while (matcher.find()) {
                    String match = matcher.group();
                    line = line.replace(match, match.replaceAll("\\s+", "~"));
                }

            }

            if (line.endsWith("\\")) {
                addToPreviousLine = false;
                line = line.substring(0, line.length() - 1);
                formattedStrings.add(line);
            } else {
                addToPreviousLine = true;

            }

            if (addToPreviousLine) {
                int previousLineIndex = formattedStrings.size() - 1;
                if (previousLineIndex > -1) {
                    // Combine the previous line and current line
                    String previousLine = formattedStrings.remove(previousLineIndex);
                    line = previousLine + " " + line;
                    formattedStrings.add(line);
                }
            }
            testScan(formattedStrings);
            //concatenatedLine.setLength(0);
        }
        return formattedStrings;
    }

Answer 1

更新

我正在给你你需要的东西，而不是试图为你编写所有的代码。你只需要弄清楚这些片段的放置位置。

如果line为空trim（）

if (line.matches("\\s+")) {
    line = "";
    // I don't think you want to add an empty line to your return result.  If you do, just omit the continue;
    continue;
}

如果line中包含双引号和空格，请用〜替换空格。例如："This is text within double quotes"更改为："This~is~text~within~double~quotes"

Matcher matcher = Pattern.compile("\"([^\"]+)\"").matcher(line);
while (matcher.find()) {
    String match = matcher.group();
    line = line.replace(match, match.replaceAll("\\s+", "~"));
}

如果行以\结束，则删除该字符并添加下一行。您需要有标记来跟踪何时执行此操作。

if (line.endsWith("\\")) {
    addToPreviousLine = true;
    line = line.substring(0, line.length() - 1);
} else {
    addToPreviousLine = false;
}

现在，要将下一行添加到上一行，您需要类似的内容（找出放置此代码段的位置）：

if (addToPreviousLine) {
    int previousLineIndex = formattedStrings.size() - 1;
    if (previousLineIndex > -1) {
        // Combine the previous line and current line
        String previousLine = formattedStrings.remove(previousLineIndex);
        line = previousLine + " " + line;
    }
}

您仍然不需要StringBuffer或StringBuilder。只需修改当前行，然后将当前行添加到formattedStrings List。

Answer 2

我对正则表达式不太了解，所以这是一种编程方法：

    String string = "He said, \"Hello Mr Nice Guy\"";

    // split it along the quotes
    String splitString[] = string.split("\"");

    // loop through, each odd indexted item is inside quotations
    for(int i = 0; i < splitString.length; i++) {
        if(i % 2 > 0) {
            splitString[i] = splitString[i].replaceAll(" ", "~");
        }
    }

    String finalString = "";

    // re-build the string w/ quotes added back in
    for(int i = 0; i < splitString.length; i++) {
        if(i % 2 > 0) {
            finalString += "\"" + splitString[i] + "\"";
        } else {
            finalString += splitString[i];
        }
    }

    System.out.println(finalString);

输出：他说，＆＃34;你好〜先生〜尼斯〜盖伊＆＃34;

Answer 3

而不是

    $('.sticky').css('margin-top',$('.site-header').outerHeight()).scrollToFixed();

我会这样做

if (line.contains("\"")) {
                   StringBuffer sb = new StringBuffer();
                   Matcher matcher = Pattern.compile("\"([^\"]+)\"").matcher(line);
                   while (matcher.find()) {
                   matcher.appendReplacement(sb, matcher.group().replaceAll("\\s+", ""));
                }

如何将其添加到上面的内容中？

if (line.matches(("\"([^\"]+)\"")) {
               line=   line.replaceAll("\\s+", ""));
                }

Answer 4

第3步：

String text;
text = text.replaceAll("\\s", "~");

Answer 5

如果要用~ s的双引号替换空格，

if (line.contains("\"")) {
    String line = "\"This is a line with spaces\"";
    String result = "";
    Pattern p = Pattern.compile("\"([^\"]*)\"");
    Matcher m = p.matcher(line);
    while (m.find()) {
          result = m.group(1).replace(" ", "~");
    }
}

使用Java解析文件并替换双引号内的空格

5 个答案:

更新