deadcxap/liberama
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Доделки

Browse Source
This commit is contained in:
Book Pauk
2019-01-27 04:45:07 +07:00
parent d24397c239
commit e0d0c6e46c
1 changed files with 152 additions and 31 deletions
Download Patch File Download Diff File Expand all files Collapse all files

183
server/core/BookConverter/sax.js
View File

@@ -1,21 +1,12 @@
function parseSync(xstr, options) {
let {onStartNode, onEndNode, onTextNode, onCdata, onComment, onProgress, innerCut} = options;
if (!onStartNode)
onStartNode = () => {};
if (!onEndNode)
onEndNode = () => {};
if (!onTextNode)
onTextNode = () => {};
if (!onCdata)
onCdata = () => {};
if (!onComment)
onComment = () => {};
if (!onProgress)
onProgress = () => {};
if (!innerCut)
innerCut = new Set();
let {onStartNode: _onStartNode = () => {},
onEndNode: _onEndNode = () => {},
onTextNode: _onTextNode = () => {},
onCdata: _onCdata = () => {},
onComment: _onComment = () => {},
onProgress: _onProgress = () => {},
innerCut = new Set()
} = options;
let i = 0;
const len = xstr.length;
@@ -80,9 +71,9 @@ function parseSync(xstr, options) {
let tagData = xstr.substr(leftData + 1, rightData - leftData - 1);
if (inCdata) {
onCdata(tagData, cutCounter, cutTag);
_onCdata(tagData, cutCounter, cutTag);
} else if (inComment) {
onComment(tagData, cutCounter, cutTag);
_onComment(tagData, cutCounter, cutTag);
} else {
let tag = '';
let tail = '';
@@ -97,17 +88,17 @@ function parseSync(xstr, options) {
const text = xstr.substr(i, left - i);
onTextNode(text, cutCounter, cutTag);
_onTextNode(text, cutCounter, cutTag);
let endTag = (singleTag ? tag : '');
if (tag === '' || tag[0] !== '/') {
onStartNode(tag, tail, singleTag, cutCounter, cutTag);
_onStartNode(tag, tail, singleTag, cutCounter, cutTag);
} else {
endTag = tag.substr(1);
}
if (endTag)
onEndNode(endTag, tail, singleTag, cutCounter, cutTag);
_onEndNode(endTag, tail, singleTag, cutCounter, cutTag);
if (innerCut.has(tag) && (!cutCounter || cutTag === tag)) {
if (!cutCounter)
@@ -123,7 +114,7 @@ function parseSync(xstr, options) {
}
if (right >= nextProg) {
onProgress(Math.round(right/(len + 1)*100));
_onProgress(Math.round(right/(len + 1)*100));
nextProg += progStep;
}
i = right + 1;
@@ -131,22 +122,152 @@ function parseSync(xstr, options) {
if (i < len) {
if (inCdata) {
onCdata(xstr.substr(i, len - i), cutCounter, cutTag);
_onCdata(xstr.substr(i, len - i), cutCounter, cutTag);
} else if (inComment) {
onComment(xstr.substr(i, len - i), cutCounter, cutTag);
_onComment(xstr.substr(i, len - i), cutCounter, cutTag);
} else {
onTextNode(xstr.substr(i, len - i), cutCounter, cutTag);
_onTextNode(xstr.substr(i, len - i), cutCounter, cutTag);
}
}
onProgress(100);
_onProgress(100);
}
//асинхронная копия parseSync
//делается заменой "_on" => "await _on" после while
async function parse(xstr, options) {
return new Promise((resolve) => {
parseSync(xstr, options);
resolve();
});
let {onStartNode: _onStartNode = () => {},
onEndNode: _onEndNode = () => {},
onTextNode: _onTextNode = () => {},
onCdata: _onCdata = () => {},
onComment: _onComment = () => {},
onProgress: _onProgress = () => {},
innerCut = new Set()
} = options;
let i = 0;
const len = xstr.length;
const progStep = len/10;
let nextProg = 0;
let cutCounter = 0;
let cutTag = '';
let inCdata;
let inComment;
while (i < len) {
inCdata = false;
inComment = false;
let singleTag = false;
let left = xstr.indexOf('<', i);
if (left < 0)
break;
let leftData = left;
if (left < len - 2 && xstr[left + 1] == '!') {
if (xstr[left + 2] == '-') {
const leftComment = xstr.indexOf('<!--', left);
if (leftComment == left) {
inComment = true;
leftData = left + 3;
}
}
if (!inComment && xstr[left + 2] == '[') {
const leftCdata = xstr.indexOf('<![CDATA[', left);
if (leftCdata == left) {
inCdata = true;
leftData = left + 8;
}
}
}
let right = null;
let rightData = null;
if (inCdata) {
rightData = xstr.indexOf(']]>', leftData + 1);
if (rightData < 0)
break;
right = rightData + 2;
} else if (inComment) {
rightData = xstr.indexOf('-->', leftData + 1);
if (rightData < 0)
break;
right = rightData + 2;
} else {
rightData = xstr.indexOf('>', leftData + 1);
if (rightData < 0)
break;
right = rightData;
if (xstr[right - 1] === '/') {
singleTag = true;
rightData--;
}
}
let tagData = xstr.substr(leftData + 1, rightData - leftData - 1);
if (inCdata) {
await _onCdata(tagData, cutCounter, cutTag);
} else if (inComment) {
await _onComment(tagData, cutCounter, cutTag);
} else {
let tag = '';
let tail = '';
const firstSpace = tagData.indexOf(' ');
if (firstSpace >= 0) {
tail = tagData.substr(firstSpace);
tag = tagData.substr(0, firstSpace);
} else {
tag = tagData;
}
tag = tag.toLowerCase();
const text = xstr.substr(i, left - i);
await _onTextNode(text, cutCounter, cutTag);
let endTag = (singleTag ? tag : '');
if (tag === '' || tag[0] !== '/') {
await _onStartNode(tag, tail, singleTag, cutCounter, cutTag);
} else {
endTag = tag.substr(1);
}
if (endTag)
await _onEndNode(endTag, tail, singleTag, cutCounter, cutTag);
if (innerCut.has(tag) && (!cutCounter || cutTag === tag)) {
if (!cutCounter)
cutTag = tag;
cutCounter++;
}
if (cutTag === endTag) {
cutCounter = (cutCounter > 0 ? cutCounter - 1 : 0);
if (!cutCounter)
cutTag = '';
}
}
if (right >= nextProg) {
await _onProgress(Math.round(right/(len + 1)*100));
nextProg += progStep;
}
i = right + 1;
}
if (i < len) {
if (inCdata) {
await _onCdata(xstr.substr(i, len - i), cutCounter, cutTag);
} else if (inComment) {
await _onComment(xstr.substr(i, len - i), cutCounter, cutTag);
} else {
await _onTextNode(xstr.substr(i, len - i), cutCounter, cutTag);
}
}
await _onProgress(100);
}
module.exports = {