250 lines
10 KiB
JavaScript
250 lines
10 KiB
JavaScript
import { parser } from '@lezer/xml';
|
|
import { LRLanguage, indentNodeProp, foldNodeProp, bracketMatchingHandle, LanguageSupport, syntaxTree } from '@codemirror/language';
|
|
|
|
function tagName(doc, tag) {
|
|
let name = tag && tag.getChild("TagName");
|
|
return name ? doc.sliceString(name.from, name.to) : "";
|
|
}
|
|
function elementName(doc, tree) {
|
|
let tag = tree && tree.firstChild;
|
|
return !tag || tag.name != "OpenTag" ? "" : tagName(doc, tag);
|
|
}
|
|
function attrName(doc, tag, pos) {
|
|
let attr = tag && tag.getChildren("Attribute").find(a => a.from <= pos && a.to >= pos);
|
|
let name = attr && attr.getChild("AttributeName");
|
|
return name ? doc.sliceString(name.from, name.to) : "";
|
|
}
|
|
function findParentElement(tree) {
|
|
for (let cur = tree && tree.parent; cur; cur = cur.parent)
|
|
if (cur.name == "Element")
|
|
return cur;
|
|
return null;
|
|
}
|
|
function findLocation(state, pos) {
|
|
var _a;
|
|
let at = syntaxTree(state).resolveInner(pos, -1), inTag = null;
|
|
for (let cur = at; !inTag && cur.parent; cur = cur.parent)
|
|
if (cur.name == "OpenTag" || cur.name == "CloseTag" || cur.name == "SelfClosingTag" || cur.name == "MismatchedCloseTag")
|
|
inTag = cur;
|
|
if (inTag && (inTag.to > pos || inTag.lastChild.type.isError)) {
|
|
let elt = inTag.parent;
|
|
if (at.name == "TagName")
|
|
return inTag.name == "CloseTag" || inTag.name == "MismatchedCloseTag"
|
|
? { type: "closeTag", from: at.from, context: elt }
|
|
: { type: "openTag", from: at.from, context: findParentElement(elt) };
|
|
if (at.name == "AttributeName")
|
|
return { type: "attrName", from: at.from, context: inTag };
|
|
if (at.name == "AttributeValue")
|
|
return { type: "attrValue", from: at.from, context: inTag };
|
|
let before = at == inTag || at.name == "Attribute" ? at.childBefore(pos) : at;
|
|
if ((before === null || before === void 0 ? void 0 : before.name) == "StartTag")
|
|
return { type: "openTag", from: pos, context: findParentElement(elt) };
|
|
if ((before === null || before === void 0 ? void 0 : before.name) == "StartCloseTag" && before.to <= pos)
|
|
return { type: "closeTag", from: pos, context: elt };
|
|
if ((before === null || before === void 0 ? void 0 : before.name) == "Is")
|
|
return { type: "attrValue", from: pos, context: inTag };
|
|
if (before)
|
|
return { type: "attrName", from: pos, context: inTag };
|
|
return null;
|
|
}
|
|
else if (at.name == "StartCloseTag") {
|
|
return { type: "closeTag", from: pos, context: at.parent };
|
|
}
|
|
while (at.parent && at.to == pos && !((_a = at.lastChild) === null || _a === void 0 ? void 0 : _a.type.isError))
|
|
at = at.parent;
|
|
if (at.name == "Element" || at.name == "Text" || at.name == "Document")
|
|
return { type: "tag", from: pos, context: at.name == "Element" ? at : findParentElement(at) };
|
|
return null;
|
|
}
|
|
class Element {
|
|
constructor(spec, attrs, attrValues) {
|
|
this.attrs = attrs;
|
|
this.attrValues = attrValues;
|
|
this.children = [];
|
|
this.name = spec.name;
|
|
this.completion = Object.assign(Object.assign({ type: "type" }, spec.completion || {}), { label: this.name });
|
|
this.openCompletion = Object.assign(Object.assign({}, this.completion), { label: "<" + this.name });
|
|
this.closeCompletion = Object.assign(Object.assign({}, this.completion), { label: "</" + this.name + ">", boost: 2 });
|
|
this.closeNameCompletion = Object.assign(Object.assign({}, this.completion), { label: this.name + ">" });
|
|
this.text = spec.textContent ? spec.textContent.map(s => ({ label: s, type: "text" })) : [];
|
|
}
|
|
}
|
|
const Identifier = /^[:\-\.\w\u00b7-\uffff]*$/;
|
|
function attrCompletion(spec) {
|
|
return Object.assign(Object.assign({ type: "property" }, spec.completion || {}), { label: spec.name });
|
|
}
|
|
function valueCompletion(spec) {
|
|
return typeof spec == "string" ? { label: `"${spec}"`, type: "constant" }
|
|
: /^"/.test(spec.label) ? spec
|
|
: Object.assign(Object.assign({}, spec), { label: `"${spec.label}"` });
|
|
}
|
|
/**
|
|
Create a completion source for the given schema.
|
|
*/
|
|
function completeFromSchema(eltSpecs, attrSpecs) {
|
|
let allAttrs = [], globalAttrs = [];
|
|
let attrValues = Object.create(null);
|
|
for (let s of attrSpecs) {
|
|
let completion = attrCompletion(s);
|
|
allAttrs.push(completion);
|
|
if (s.global)
|
|
globalAttrs.push(completion);
|
|
if (s.values)
|
|
attrValues[s.name] = s.values.map(valueCompletion);
|
|
}
|
|
let allElements = [], topElements = [];
|
|
let byName = Object.create(null);
|
|
for (let s of eltSpecs) {
|
|
let attrs = globalAttrs, attrVals = attrValues;
|
|
if (s.attributes)
|
|
attrs = attrs.concat(s.attributes.map(s => {
|
|
if (typeof s == "string")
|
|
return allAttrs.find(a => a.label == s) || { label: s, type: "property" };
|
|
if (s.values) {
|
|
if (attrVals == attrValues)
|
|
attrVals = Object.create(attrVals);
|
|
attrVals[s.name] = s.values.map(valueCompletion);
|
|
}
|
|
return attrCompletion(s);
|
|
}));
|
|
let elt = new Element(s, attrs, attrVals);
|
|
byName[elt.name] = elt;
|
|
allElements.push(elt);
|
|
if (s.top)
|
|
topElements.push(elt);
|
|
}
|
|
if (!topElements.length)
|
|
topElements = allElements;
|
|
for (let i = 0; i < allElements.length; i++) {
|
|
let s = eltSpecs[i], elt = allElements[i];
|
|
if (s.children) {
|
|
for (let ch of s.children)
|
|
if (byName[ch])
|
|
elt.children.push(byName[ch]);
|
|
}
|
|
else {
|
|
elt.children = allElements;
|
|
}
|
|
}
|
|
return cx => {
|
|
var _a;
|
|
let { doc } = cx.state, loc = findLocation(cx.state, cx.pos);
|
|
if (!loc || (loc.type == "tag" && !cx.explicit))
|
|
return null;
|
|
let { type, from, context } = loc;
|
|
if (type == "openTag") {
|
|
let children = topElements;
|
|
let parentName = elementName(doc, context);
|
|
if (parentName) {
|
|
let parent = byName[parentName];
|
|
children = (parent === null || parent === void 0 ? void 0 : parent.children) || allElements;
|
|
}
|
|
return {
|
|
from,
|
|
options: children.map(ch => ch.completion),
|
|
validFor: Identifier
|
|
};
|
|
}
|
|
else if (type == "closeTag") {
|
|
let parentName = elementName(doc, context);
|
|
return parentName ? {
|
|
from,
|
|
to: cx.pos + (doc.sliceString(cx.pos, cx.pos + 1) == ">" ? 1 : 0),
|
|
options: [((_a = byName[parentName]) === null || _a === void 0 ? void 0 : _a.closeNameCompletion) || { label: parentName + ">", type: "type" }],
|
|
validFor: Identifier
|
|
} : null;
|
|
}
|
|
else if (type == "attrName") {
|
|
let parent = byName[tagName(doc, context)];
|
|
return {
|
|
from,
|
|
options: (parent === null || parent === void 0 ? void 0 : parent.attrs) || globalAttrs,
|
|
validFor: Identifier
|
|
};
|
|
}
|
|
else if (type == "attrValue") {
|
|
let attr = attrName(doc, context, from);
|
|
if (!attr)
|
|
return null;
|
|
let parent = byName[tagName(doc, context)];
|
|
let values = ((parent === null || parent === void 0 ? void 0 : parent.attrValues) || attrValues)[attr];
|
|
if (!values || !values.length)
|
|
return null;
|
|
return {
|
|
from,
|
|
to: cx.pos + (doc.sliceString(cx.pos, cx.pos + 1) == '"' ? 1 : 0),
|
|
options: values,
|
|
validFor: /^"[^"]*"?$/
|
|
};
|
|
}
|
|
else if (type == "tag") {
|
|
let parentName = elementName(doc, context), parent = byName[parentName];
|
|
let closing = [], last = context && context.lastChild;
|
|
if (parentName && (!last || last.name != "CloseTag" || tagName(doc, last) != parentName))
|
|
closing.push(parent ? parent.closeCompletion : { label: "</" + parentName + ">", type: "type", boost: 2 });
|
|
let options = closing.concat(((parent === null || parent === void 0 ? void 0 : parent.children) || (context ? allElements : topElements)).map(e => e.openCompletion));
|
|
if (context && (parent === null || parent === void 0 ? void 0 : parent.text.length)) {
|
|
let openTag = context.firstChild;
|
|
if (openTag.to > cx.pos - 20 && !/\S/.test(cx.state.sliceDoc(openTag.to, cx.pos)))
|
|
options = options.concat(parent.text);
|
|
}
|
|
return {
|
|
from,
|
|
options,
|
|
validFor: /^<\/?[:\-\.\w\u00b7-\uffff]*$/
|
|
};
|
|
}
|
|
else {
|
|
return null;
|
|
}
|
|
};
|
|
}
|
|
|
|
/**
|
|
A language provider based on the [Lezer XML
|
|
parser](https://github.com/lezer-parser/xml), extended with
|
|
highlighting and indentation information.
|
|
*/
|
|
const xmlLanguage = /*@__PURE__*/LRLanguage.define({
|
|
name: "xml",
|
|
parser: /*@__PURE__*/parser.configure({
|
|
props: [
|
|
/*@__PURE__*/indentNodeProp.add({
|
|
Element(context) {
|
|
let closed = /^\s*<\//.test(context.textAfter);
|
|
return context.lineIndent(context.node.from) + (closed ? 0 : context.unit);
|
|
},
|
|
"OpenTag CloseTag SelfClosingTag"(context) {
|
|
return context.column(context.node.from) + context.unit;
|
|
}
|
|
}),
|
|
/*@__PURE__*/foldNodeProp.add({
|
|
Element(subtree) {
|
|
let first = subtree.firstChild, last = subtree.lastChild;
|
|
if (!first || first.name != "OpenTag")
|
|
return null;
|
|
return { from: first.to, to: last.name == "CloseTag" ? last.from : subtree.to };
|
|
}
|
|
}),
|
|
/*@__PURE__*/bracketMatchingHandle.add({
|
|
"OpenTag CloseTag": node => node.getChild("TagName")
|
|
})
|
|
]
|
|
}),
|
|
languageData: {
|
|
commentTokens: { block: { open: "<!--", close: "-->" } },
|
|
indentOnInput: /^\s*<\/$/
|
|
}
|
|
});
|
|
/**
|
|
XML language support. Includes schema-based autocompletion when
|
|
configured.
|
|
*/
|
|
function xml(conf = {}) {
|
|
return new LanguageSupport(xmlLanguage, xmlLanguage.data.of({
|
|
autocomplete: completeFromSchema(conf.elements || [], conf.attributes || [])
|
|
}));
|
|
}
|
|
|
|
export { completeFromSchema, xml, xmlLanguage };
|