waveterm/xterm.js
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new parser

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This commit is contained in:
Jörg Breitbart
2018-04-21 05:12:24 +02:00
parent cf8fa10205
commit fb7e5d590c
4 changed files with 1802 additions and 34 deletions
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src/EscapeSequenceParser.test.ts
+1042
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File diff suppressed because it is too large Load Diff
src/EscapeSequenceParser.ts
+718
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File diff suppressed because it is too large Load Diff
src/InputHandler.ts
+32 -29
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@@ -22,11 +22,14 @@ export class InputHandler implements IInputHandler {
constructor(private _terminal: IInputHandlingTerminal) { }
public addChar(char: string, code: number): void {
if (char >= ' ') {
// if (char >= ' ') {
// calculate print space
// expensive call, therefore we save width in line buffer
const chWidth = wcwidth(code);
// localize buffer
let buffer = this._terminal.buffer;
if (this._terminal.charset && this._terminal.charset[char]) {
char = this._terminal.charset[char];
}
@@ -35,42 +38,42 @@ export class InputHandler implements IInputHandler {
this._terminal.emit('a11y.char', char);
}
let row = this._terminal.buffer.y + this._terminal.buffer.ybase;
let row = buffer.y + buffer.ybase;
// insert combining char in last cell
// FIXME: needs handling after cursor jumps
if (!chWidth && this._terminal.buffer.x) {
if (!chWidth && buffer.x) {
// dont overflow left
if (this._terminal.buffer.lines.get(row)[this._terminal.buffer.x - 1]) {
if (!this._terminal.buffer.lines.get(row)[this._terminal.buffer.x - 1][CHAR_DATA_WIDTH_INDEX]) {
if (buffer.lines.get(row)[buffer.x - 1]) {
if (!buffer.lines.get(row)[buffer.x - 1][CHAR_DATA_WIDTH_INDEX]) {
// found empty cell after fullwidth, need to go 2 cells back
if (this._terminal.buffer.lines.get(row)[this._terminal.buffer.x - 2]) {
this._terminal.buffer.lines.get(row)[this._terminal.buffer.x - 2][CHAR_DATA_CHAR_INDEX] += char;
this._terminal.buffer.lines.get(row)[this._terminal.buffer.x - 2][3] = char.charCodeAt(0);
if (buffer.lines.get(row)[buffer.x - 2]) {
buffer.lines.get(row)[buffer.x - 2][CHAR_DATA_CHAR_INDEX] += char;
buffer.lines.get(row)[buffer.x - 2][3] = char.charCodeAt(0);
}
} else {
this._terminal.buffer.lines.get(row)[this._terminal.buffer.x - 1][CHAR_DATA_CHAR_INDEX] += char;
this._terminal.buffer.lines.get(row)[this._terminal.buffer.x - 1][3] = char.charCodeAt(0);
buffer.lines.get(row)[buffer.x - 1][CHAR_DATA_CHAR_INDEX] += char;
buffer.lines.get(row)[buffer.x - 1][3] = char.charCodeAt(0);
}
this._terminal.updateRange(this._terminal.buffer.y);
this._terminal.updateRange(buffer.y);
}
return;
}
// goto next line if ch would overflow
// TODO: needs a global min terminal width of 2
if (this._terminal.buffer.x + chWidth - 1 >= this._terminal.cols) {
if (buffer.x + chWidth - 1 >= this._terminal.cols) {
// autowrap - DECAWM
if (this._terminal.wraparoundMode) {
this._terminal.buffer.x = 0;
this._terminal.buffer.y++;
if (this._terminal.buffer.y > this._terminal.buffer.scrollBottom) {
this._terminal.buffer.y--;
buffer.x = 0;
buffer.y++;
if (buffer.y > buffer.scrollBottom) {
buffer.y--;
this._terminal.scroll(true);
} else {
// The line already exists (eg. the initial viewport), mark it as a
// wrapped line
(<any>this._terminal.buffer.lines.get(this._terminal.buffer.y)).isWrapped = true;
(<any>buffer.lines.get(buffer.y)).isWrapped = true;
}
} else {
if (chWidth === 2) { // FIXME: check for xterm behavior
@@ -78,7 +81,7 @@ export class InputHandler implements IInputHandler {
}
}
}
row = this._terminal.buffer.y + this._terminal.buffer.ybase;
row = buffer.y + buffer.ybase;
// insert mode: move characters to right
if (this._terminal.insertMode) {
@@ -86,28 +89,28 @@ export class InputHandler implements IInputHandler {
for (let moves = 0; moves < chWidth; ++moves) {
// remove last cell, if it's width is 0
// we have to adjust the second last cell as well
const removed = this._terminal.buffer.lines.get(this._terminal.buffer.y + this._terminal.buffer.ybase).pop();
const removed = buffer.lines.get(buffer.y + buffer.ybase).pop();
if (removed[CHAR_DATA_WIDTH_INDEX] === 0
&& this._terminal.buffer.lines.get(row)[this._terminal.cols - 2]
&& this._terminal.buffer.lines.get(row)[this._terminal.cols - 2][CHAR_DATA_WIDTH_INDEX] === 2) {
this._terminal.buffer.lines.get(row)[this._terminal.cols - 2] = [this._terminal.curAttr, ' ', 1, ' '.charCodeAt(0)];
&& buffer.lines.get(row)[this._terminal.cols - 2]
&& buffer.lines.get(row)[this._terminal.cols - 2][CHAR_DATA_WIDTH_INDEX] === 2) {
buffer.lines.get(row)[this._terminal.cols - 2] = [this._terminal.curAttr, ' ', 1, ' '.charCodeAt(0)];
}
// insert empty cell at cursor
this._terminal.buffer.lines.get(row).splice(this._terminal.buffer.x, 0, [this._terminal.curAttr, ' ', 1, ' '.charCodeAt(0)]);
buffer.lines.get(row).splice(buffer.x, 0, [this._terminal.curAttr, ' ', 1, ' '.charCodeAt(0)]);
}
}
this._terminal.buffer.lines.get(row)[this._terminal.buffer.x] = [this._terminal.curAttr, char, chWidth, char.charCodeAt(0)];
this._terminal.buffer.x++;
this._terminal.updateRange(this._terminal.buffer.y);
buffer.lines.get(row)[buffer.x] = [this._terminal.curAttr, char, chWidth, char.charCodeAt(0)];
buffer.x++;
this._terminal.updateRange(buffer.y);
// fullwidth char - set next cell width to zero and advance cursor
if (chWidth === 2) {
this._terminal.buffer.lines.get(row)[this._terminal.buffer.x] = [this._terminal.curAttr, '', 0, undefined];
this._terminal.buffer.x++;
buffer.lines.get(row)[buffer.x] = [this._terminal.curAttr, '', 0, undefined];
buffer.x++;
}
}
// }
}
/**
src/Terminal.ts
+10 -5
View File
@@ -32,7 +32,7 @@ import { Viewport } from './Viewport';
import { rightClickHandler, moveTextAreaUnderMouseCursor, pasteHandler, copyHandler } from './handlers/Clipboard';
import { C0 } from './EscapeSequences';
import { InputHandler } from './InputHandler';
import { Parser } from './Parser';
// import { Parser } from './Parser';
import { Renderer } from './renderer/Renderer';
import { Linkifier } from './Linkifier';
import { SelectionManager } from './SelectionManager';
@@ -47,6 +47,7 @@ import { MouseZoneManager } from './input/MouseZoneManager';
import { AccessibilityManager } from './AccessibilityManager';
import { ScreenDprMonitor } from './utils/ScreenDprMonitor';
import { ITheme, ILocalizableStrings, IMarker } from 'xterm';
import { ParserTerminal } from './EscapeSequenceParser';
// reg + shift key mappings for digits and special chars
const KEYCODE_KEY_MAPPINGS = {
@@ -212,7 +213,8 @@ export class Terminal extends EventEmitter implements ITerminal, IInputHandlingT
private _inputHandler: InputHandler;
public soundManager: SoundManager;
private _parser: Parser;
// private _parser: Parser;
private _newParser: ParserTerminal;
public renderer: IRenderer;
public selectionManager: SelectionManager;
public linkifier: ILinkifier;
@@ -306,7 +308,8 @@ export class Terminal extends EventEmitter implements ITerminal, IInputHandlingT
this._userScrolling = false;
this._inputHandler = new InputHandler(this);
this._parser = new Parser(this._inputHandler, this);
// this._parser = new Parser(this._inputHandler, this);
this._newParser = new ParserTerminal(this, this._inputHandler);
// Reuse renderer if the Terminal is being recreated via a reset call.
this.renderer = this.renderer || null;
this.selectionManager = this.selectionManager || null;
@@ -1303,8 +1306,10 @@ export class Terminal extends EventEmitter implements ITerminal, IInputHandlingT
// middle of parsing escape sequence in two chunks. For some reason the
// state of the parser resets to 0 after exiting parser.parse. This change
// just sets the state back based on the correct return statement.
const state = this._parser.parse(data);
this._parser.setState(state);
// const state = this._parser.parse(data);
this._newParser.write(data);
// this._parser.setState(state);
this.updateRange(this.buffer.y);
this.refresh(this._refreshStart, this._refreshEnd);