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Get ranges for children.

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This commit is contained in:
Rob Rix 2015-10-23 21:05:20 -04:00
parent b3dfee8fc0
commit b7ac783e19
1 changed files with 19 additions and 9 deletions
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28
prototype/UI/index.html
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@ -86,11 +86,19 @@
/// Term -> String -> DOM
function termToDOM(term, source) {
return rangeAndSyntaxToDOM(term.range, term.unwrap, source, function(term) { return termToDOM(term, source); });
return rangeAndSyntaxToDOM(term.range, term.unwrap, source, function(term) { return term.range; }, function(term) { return termToDOM(term, source); });
}
/// Range -> Syntax a -> String, (a -> DOM) -> DOM
function rangeAndSyntaxToDOM(range, syntax, source, recur) {
/// Diff -> String -> String -> DOM
function diffToDOM(diff, which, source) {
return rangeAndSyntaxToDOM(diff.roll.extract[which], diff.roll.unwrap, source, function(diff) {
if (diff.pure != null) { return diff.pure["data-range"]; }
if (diff.roll != null) { return diff.roll.extract[which]; }
}, function(diff) { return diffToDOM(diff, which, source); })
}
/// Range -> Syntax a -> String -> (a -> Range) -> (a -> DOM) -> DOM
function rangeAndSyntaxToDOM(range, syntax, source, getRange, recur) {
recur = recur || function (term) { return rangeAndSyntaxToDOM(term.range, term.unwrap, source); }
var element;
if (syntax.leaf != null) {
@ -101,9 +109,10 @@
var previous = range[0];
for (i in syntax.indexed) {
var child = syntax.indexed[i];
element.appendChild(document.createTextNode(source.substr(previous, child.range[0] - previous)));
var childRange = getRange(child);
element.appendChild(document.createTextNode(source.substr(previous, childRange[0] - previous)));
element.appendChild(wrap("li", recur(child)));
previous = child.range[0] + child.range[1];
previous = childRange[0] + childRange[1];
}
element.appendChild(document.createTextNode(source.substr(previous, range[0] + range[1] - previous)));
} else if (syntax.keyed != null) {
@ -113,9 +122,9 @@
values.push([ k, syntax.keyed.values[k] ]);
}
values.sort(function(a, b) {
if (a[1].range[0] < b[1].range[0]) {
if (getRange(a[1])[0] < getRange(b[1])[0]) {
return -1;
} else if (a[1].range[0] > b[1].range[0]) {
} else if (getRange(a[1])[0] > getRange(b[1])[0]) {
return 1;
}
return 0;
@ -126,10 +135,11 @@
var pair = values[i];
var key = pair[0];
var child = pair[1];
element.appendChild(document.createTextNode(source.substr(previous, child.range[0] - previous)));
var childRange = getRange(child);
element.appendChild(document.createTextNode(source.substr(previous, childRange[0] - previous)));
element.appendChild(wrap("dt", document.createTextNode(key)));
element.appendChild(wrap("dd", recur(child)));
previous = child.range[0] + child.range[1];
previous = childRange[0] + childRange[1];
}
element.appendChild(document.createTextNode(source.substr(previous, range[0] + range[1] - previous)));
}