conventional-commits-parser/dist/utils.js

Parse raw conventional commits.

const SCISSOR = '------------------------ >8 ------------------------';
/**
 * Remove leading and trailing newlines.
 * @param input
 * @returns String without leading and trailing newlines.
 */
export function trimNewLines(input) {
    // To escape ReDos we should escape String#replace with regex.
    const matches = input.match(/[^\r\n]/);
    if (typeof matches?.index !== 'number') {
        return '';
    }
    const firstIndex = matches.index;
    let lastIndex = input.length - 1;
    while (input[lastIndex] === '\r' || input[lastIndex] === '\n') {
        lastIndex--;
    }
    return input.substring(firstIndex, lastIndex + 1);
}
/**
 * Append a newline to a string.
 * @param src
 * @param line
 * @returns String with appended newline.
 */
export function appendLine(src, line) {
    return src ? `${src}\n${line || ''}` : line || '';
}
/**
 * Creates a function that filters out comments lines.
 * @param char
 * @returns Comment filter function.
 */
export function getCommentFilter(char) {
    return char
        ? (line) => !line.startsWith(char)
        : () => true;
}
/**
 * Select lines before the scissor.
 * @param lines
 * @param commentChar
 * @returns Lines before the scissor.
 */
export function truncateToScissor(lines, commentChar) {
    const scissorIndex = lines.indexOf(`${commentChar} ${SCISSOR}`);
    if (scissorIndex === -1) {
        return lines;
    }
    return lines.slice(0, scissorIndex);
}
/**
 * Filter out GPG sign lines.
 * @param line
 * @returns True if the line is not a GPG sign line.
 */
export function gpgFilter(line) {
    return !line.match(/^\s*gpg:/);
}
/**
 * Assign matched correspondence to the target object.
 * @param target - The target object to assign values to.
 * @param matches - The RegExp match array containing the matched groups.
 * @param correspondence - An array of keys that correspond to the matched groups.
 * @returns The target object with assigned values.
 */
export function assignMatchedCorrespondence(target, matches, correspondence) {
    const { groups } = matches;
    for (let i = 0, len = correspondence.length, key; i < len; i++) {
        key = correspondence[i];
        target[key] = (groups ? groups[key] : matches[i + 1]) || null;
    }
    return target;
}
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