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// CodeMirror, copyright (c) by Marijn Haverbeke and others
(function(mod) {
if (typeof exports == "object" && typeof module == "object") // CommonJS
else if (typeof define == "function" && define.amd) // AMD
define(["../../lib/codemirror"], mod);
else // Plain browser env
mod(CodeMirror);
})(function(CodeMirror) {
"use strict";
var listRE = /^(\s*)(>[> ]*|[*+-] \[[x ]\]\s|[*+-]\s|(\d+)([.)]))(\s*)/,
emptyListRE = /^(\s*)(>[> ]*|[*+-] \[[x ]\]|[*+-]|(\d+)[.)])(\s*)$/,
unorderedListRE = /[*+-]\s/;
CodeMirror.commands.newlineAndIndentContinueMarkdownList = function(cm) {
if (cm.getOption("disableInput")) return CodeMirror.Pass;
var ranges = cm.listSelections(), replacements = [];
for (var i = 0; i < ranges.length; i++) {
var pos = ranges[i].head;
// If we're not in Markdown mode, fall back to normal newlineAndIndent
var eolState = cm.getStateAfter(pos.line);
var inner = CodeMirror.innerMode(cm.getMode(), eolState);
if (inner.mode.name !== "markdown") {
cm.execCommand("newlineAndIndent");
return;
} else {
eolState = inner.state;
}
var inList = eolState.list !== false;
var inQuote = eolState.quote !== 0;
var line = cm.getLine(pos.line), match = listRE.exec(line);
var cursorBeforeBullet = /^\s*$/.test(line.slice(0, pos.ch));
if (!ranges[i].empty() || (!inList && !inQuote) || !match || cursorBeforeBullet) {
cm.execCommand("newlineAndIndent");
return;
}
if (emptyListRE.test(line)) {
if (!/>\s*$/.test(line)) cm.replaceRange("", {
line: pos.line, ch: 0
}, {
line: pos.line, ch: pos.ch + 1
});
replacements[i] = "\n";
} else {
var indent = match[1], after = match[5];
var numbered = !(unorderedListRE.test(match[2]) || match[2].indexOf(">") >= 0);
var bullet = numbered ? (parseInt(match[3], 10) + 1) + match[4] : match[2].replace("x", " ");
replacements[i] = "\n" + indent + bullet + after;
if (numbered) incrementRemainingMarkdownListNumbers(cm, pos);
}
}
cm.replaceSelections(replacements);
};
// Auto-updating Markdown list numbers when a new item is added to the
// middle of a list
function incrementRemainingMarkdownListNumbers(cm, pos) {
var startLine = pos.line, lookAhead = 0, skipCount = 0;
var startItem = listRE.exec(cm.getLine(startLine)), startIndent = startItem[1];
do {
lookAhead += 1;
var nextLineNumber = startLine + lookAhead;
var nextLine = cm.getLine(nextLineNumber), nextItem = listRE.exec(nextLine);
if (nextItem) {
var nextIndent = nextItem[1];
var newNumber = (parseInt(startItem[3], 10) + lookAhead - skipCount);
var nextNumber = (parseInt(nextItem[3], 10)), itemNumber = nextNumber;
if (startIndent === nextIndent && !isNaN(nextNumber)) {
if (newNumber === nextNumber) itemNumber = nextNumber + 1;
if (newNumber > nextNumber) itemNumber = newNumber + 1;
cm.replaceRange(
nextLine.replace(listRE, nextIndent + itemNumber + nextItem[4] + nextItem[5]),
{
line: nextLineNumber, ch: 0
}, {
line: nextLineNumber, ch: nextLine.length
});
} else {
if (startIndent.length > nextIndent.length) return;
// This doesn't run if the next line immediatley indents, as it is
// not clear of the users intention (new indented item or same level)
if ((startIndent.length < nextIndent.length) && (lookAhead === 1)) return;
skipCount += 1;
}
}
} while (nextItem);
}
});