Examples with Pattern org.rstudio.core.client.regex.Pattern used on opensource projects

Example 16 with Pattern

use of org.rstudio.core.client.regex.Pattern in project rstudio by rstudio.

the class AceEditorBackgroundLinkHighlighter method onWebLinkHighlight.

private void onWebLinkHighlight(AceEditor editor, String line, int row) {
    // use a regex that captures all non-space characters within
    // a web link, and then fix up the captured link by removing
    // trailing punctuation, etc. as required
    Pattern reWebLink = createWebLinkPattern();
    for (Match match = reWebLink.match(line, 0); match != null; match = match.nextMatch()) {
        // compute start, end index for discovered URL
        int startIdx = match.getIndex();
        int endIdx = match.getIndex() + match.getValue().length();
        // ensure that the discovered url is not within a string
        Token token = editor_.getTokenAt(Position.create(row, startIdx));
        if (token.hasType("string"))
            continue;
        String url = match.getValue();
        // trim off enclosing brackets
        if (!url.matches(reWebLink())) {
            startIdx++;
            endIdx--;
            url = url.substring(1, url.length() - 1);
        }
        // trim off trailing punctuation (characters unlikely
        // to be found at the end of a url)
        String trimmed = url.replaceAll("[,.?!@#$%^&*;:-]+$", "");
        endIdx -= (url.length() - trimmed.length());
        url = trimmed;
        // perform highlighting
        highlight(editor, row, startIdx, endIdx);
    }
}

Example 17 with Pattern

use of org.rstudio.core.client.regex.Pattern in project rstudio by rstudio.

the class AceEditorBackgroundLinkHighlighter method onTestthatErrorHighlight.

private void onTestthatErrorHighlight(AceEditor editor, String line, int row) {
    Pattern reTestthatError = Pattern.create("\\(@[^#]+#\\d+\\)");
    for (Match match = reTestthatError.match(line, 0); match != null; match = match.nextMatch()) {
        int startIdx = match.getIndex() + 1;
        int endIdx = match.getIndex() + match.getValue().length() - 1;
        highlight(editor, row, startIdx, endIdx);
    }
}

Example 18 with Pattern

use of org.rstudio.core.client.regex.Pattern in project rstudio by rstudio.

the class AceEditorBackgroundLinkHighlighter method onMarkdownLinkHighlight.

private void onMarkdownLinkHighlight(AceEditor editor, String line, int row) {
    Pattern reMarkdownLink = Pattern.create("(\\[[^\\]]+\\])(\\([^\\)]+\\))");
    for (Match match = reMarkdownLink.match(line, 0); match != null; match = match.nextMatch()) {
        int startIdx = match.getIndex() + match.getGroup(1).length() + 1;
        int endIdx = match.getIndex() + match.getValue().length() - 1;
        highlight(editor, row, startIdx, endIdx);
    }
}

Example 19 with Pattern

use of org.rstudio.core.client.regex.Pattern in project rstudio by rstudio.

the class CppCompletionUtils method getCompletionPosition.

public static CompletionPosition getCompletionPosition(DocDisplay docDisplay, boolean explicit, boolean alwaysComplete, int autoChars) {
    // get the current line of code
    String line = docDisplay.getCurrentLine();
    // is this an '#include' line?
    Pattern reInclude = Pattern.create("^\\s*#+\\s*include", "");
    boolean isInclude = reInclude.test(line);
    // get the cursor position
    Position position = docDisplay.getCursorPosition();
    // if so then bail
    if ((position.getColumn() < line.length()) && CppCompletionUtils.isCppIdentifierChar(line.charAt(position.getColumn()))) {
        return null;
    }
    // determine the column right before this one
    int inputCol = position.getColumn() - 1;
    // walk backwards across C++ identifer symbols 
    int col = inputCol;
    if (isInclude) {
        while (col >= 0 && !StringUtil.isOneOf(line.charAt(col), '/', '<', '"')) {
            col--;
        }
    } else {
        while ((col >= 0) && CppCompletionUtils.isCppIdentifierChar(line.charAt(col))) {
            col--;
        }
    }
    // record source position
    Position startPos = Position.create(position.getRow(), col + 1);
    // check for a completion triggering sequence
    char ch = line.charAt(col);
    char prefixCh = line.charAt(col - 1);
    // member
    if (ch == '.' || (prefixCh == '-' && ch == '>')) {
        return new CompletionPosition(startPos, // no user text (get all completions)
        "", CompletionPosition.Scope.Member);
    } else // scope
    if (prefixCh == ':' && ch == ':') {
        return new CompletionPosition(startPos, // no user text (get all completions)
        "", CompletionPosition.Scope.Namespace);
    } else // directory
    if (isInclude && ch == '/') {
        return new CompletionPosition(startPos, // no user test (get all completions)
        "", CompletionPosition.Scope.File);
    } else // minimum character threshold
    if (// either always completing or explicit
    (alwaysComplete || explicit) && // meets the character threshold
    ((inputCol - col) >= (explicit ? 1 : autoChars)) && // not a quote character
    (isInclude || ch != '"')) {
        // calculate user text (up to two characters of additional
        // server side filter)
        String userText = line.substring(col + 1, Math.min(col + 3, position.getColumn()));
        CompletionPosition.Scope scope = isInclude ? CompletionPosition.Scope.File : CompletionPosition.Scope.Global;
        return new CompletionPosition(startPos, userText, scope);
    } else {
        return null;
    }
}

Example 20 with Pattern

use of org.rstudio.core.client.regex.Pattern in project rstudio by rstudio.

the class TextEditingTargetCompilePdfHelper method getRnwOptionsStart.

@Override
public int getRnwOptionsStart(String line, int cursorPos) {
    Pattern pattern = docDisplay_.getFileType().getRnwStartPatternBegin();
    if (pattern == null)
        return -1;
    String linePart = line.substring(0, cursorPos);
    Match match = pattern.match(linePart, 0);
    if (match == null)
        return -1;
    // See if the cursor is already past the end of the chunk header,
    // for example <<foo>>=[CURSOR].
    Pattern patternEnd = docDisplay_.getFileType().getRnwStartPatternEnd();
    if (patternEnd != null && patternEnd.match(linePart, 0) != null)
        return -1;
    return match.getValue().length();
}