mirror of
https://github.com/HeyPuter/puter
synced 2024-11-14 22:06:00 +00:00
refactor(phoenix): Split up sed code
Let's organise this a bit.
This commit is contained in:
Sam Atkins
parent
9b4d16fbe9
commit
6aae8fc63b
@ -18,620 +18,7 @@
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*/
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import { Exit } from './coreutil_lib/exit.js';
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import { fileLines } from '../../util/file.js';
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function makeIndent(size) {
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return ' '.repeat(size);
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}
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// Either a line number or a regex
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class Address {
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constructor(value) {
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this.value = value;
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}
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matches(lineNumber, line) {
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if (this.value instanceof RegExp) {
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return this.value.test(line);
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}
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return this.value === lineNumber;
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}
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isLineNumberBefore(lineNumber) {
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return (typeof this.value === 'number') && this.value < lineNumber;
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}
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dump(indent) {
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if (this.value instanceof RegExp) {
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return `${makeIndent(indent)}REGEX: ${this.value}\n`;
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}
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return `${makeIndent(indent)}LINE: ${this.value}\n`;
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}
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}
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class AddressRange {
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// Three kinds of AddressRange:
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// - Empty (includes everything)
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// - Single (matches individual line)
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// - Range (matches lines between start and end, inclusive)
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constructor({ start, end, inverted = false } = {}) {
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this.start = start;
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this.end = end;
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this.inverted = inverted;
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this.insideRange = false;
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this.leaveRangeNextLine = false;
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}
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updateMatchState(lineNumber, line) {
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// Only ranges have a state to update
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if (!(this.start && this.end)) {
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return;
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}
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// Reset our state each time we start a new file.
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if (lineNumber === 1) {
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this.insideRange = false;
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this.leaveRangeNextLine = false;
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}
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// Leave the range if the previous line matched the end.
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if (this.leaveRangeNextLine) {
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this.insideRange = false;
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this.leaveRangeNextLine = false;
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}
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if (this.insideRange) {
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// We're inside the range, does this line end it?
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// If the end address is a line number in the past, yes, immediately.
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if (this.end.isLineNumberBefore(lineNumber)) {
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this.insideRange = false;
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return;
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}
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// If the line matches the end address, include it but leave the range on the next line.
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this.leaveRangeNextLine = this.end.matches(lineNumber, line);
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} else {
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// Does this line start the range?
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this.insideRange = this.start.matches(lineNumber, line);
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}
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}
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matches(lineNumber, line) {
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const invertIfNeeded = (value) => {
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return this.inverted ? !value : value;
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};
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// Empty - matches all lines
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if (!this.start) {
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return invertIfNeeded(true);
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}
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// Range
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if (this.end) {
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return invertIfNeeded(this.insideRange);
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}
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// Single
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return invertIfNeeded(this.start.matches(lineNumber, line));
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}
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dump(indent) {
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const inverted = this.inverted ? `${makeIndent(indent+1)}(INVERTED)\n` : '';
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if (!this.start) {
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return `${makeIndent(indent)}ADDRESS RANGE (EMPTY)\n`
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+ inverted;
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}
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if (this.end) {
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return `${makeIndent(indent)}ADDRESS RANGE (RANGE):\n`
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+ inverted
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+ this.start.dump(indent+1)
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+ this.end.dump(indent+1);
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}
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return `${makeIndent(indent)}ADDRESS RANGE (SINGLE):\n`
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+ this.start.dump(indent+1)
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+ inverted;
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}
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}
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const JumpLocation = {
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None: Symbol('None'),
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EndOfCycle: Symbol('EndOfCycle'),
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StartOfCycle: Symbol('StartOfCycle'),
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Label: Symbol('Label'),
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Quit: Symbol('Quit'),
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QuitSilent: Symbol('QuitSilent'),
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};
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class Command {
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constructor(addressRange) {
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this.addressRange = addressRange ?? new AddressRange();
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}
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updateMatchState(context) {
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this.addressRange.updateMatchState(context.lineNumber, context.patternSpace);
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}
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async runCommand(context) {
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if (this.addressRange.matches(context.lineNumber, context.patternSpace)) {
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return await this.run(context);
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}
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return JumpLocation.None;
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}
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async run(context) {
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throw new Error('run() not implemented for ' + this.constructor.name);
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}
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dump(indent) {
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throw new Error('dump() not implemented for ' + this.constructor.name);
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}
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}
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// '{}' - Group other commands
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class GroupCommand extends Command {
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constructor(addressRange, subCommands) {
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super(addressRange);
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this.subCommands = subCommands;
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}
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updateMatchState(context) {
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super.updateMatchState(context);
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for (const command of this.subCommands) {
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command.updateMatchState(context);
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}
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}
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async run(context) {
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for (const command of this.subCommands) {
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const result = await command.runCommand(context);
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if (result !== JumpLocation.None) {
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return result;
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}
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}
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return JumpLocation.None;
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}
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dump(indent) {
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return `${makeIndent(indent)}GROUP:\n`
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+ this.addressRange.dump(indent+1)
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+ `${makeIndent(indent+1)}CHILDREN:\n`
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+ this.subCommands.map(command => command.dump(indent+2)).join('');
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}
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}
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// '=' - Output line number
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class LineNumberCommand extends Command {
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constructor(addressRange) {
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super(addressRange);
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}
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async run(context) {
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await context.out.write(`${context.lineNumber}\n`);
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return JumpLocation.None;
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}
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dump(indent) {
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return `${makeIndent(indent)}LINE-NUMBER:\n`
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+ this.addressRange.dump(indent+1);
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}
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}
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// 'a' - Append text
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class AppendTextCommand extends Command {
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constructor(addressRange, text) {
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super(addressRange);
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this.text = text;
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}
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async run(context) {
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context.queuedOutput += this.text + '\n';
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return JumpLocation.None;
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}
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dump(indent) {
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return `${makeIndent(indent)}APPEND-TEXT:\n`
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+ this.addressRange.dump(indent+1)
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+ `${makeIndent(indent+1)}CONTENTS: '${this.text}'\n`;
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}
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}
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// 'c' - Replace line with text
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class ReplaceCommand extends Command {
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constructor(addressRange, text) {
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super(addressRange);
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this.text = text;
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}
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async run(context) {
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context.patternSpace = '';
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// Output if we're either a 0-address range, 1-address range, or 2-address on the last line.
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if (this.addressRange.leaveRangeNextLine || !this.addressRange.end) {
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await context.out.write(this.text + '\n');
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}
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return JumpLocation.EndOfCycle;
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}
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dump(indent) {
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return `${makeIndent(indent)}REPLACE-TEXT:\n`
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+ this.addressRange.dump(indent+1)
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+ `${makeIndent(indent+1)}CONTENTS: '${this.text}'\n`;
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}
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}
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// 'd' - Delete pattern
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class DeleteCommand extends Command {
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constructor(addressRange) {
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super(addressRange);
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}
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async run(context) {
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context.patternSpace = '';
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return JumpLocation.EndOfCycle;
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}
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dump(indent) {
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return `${makeIndent(indent)}DELETE:\n`
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+ this.addressRange.dump(indent+1);
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}
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}
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// 'D' - Delete first line of pattern
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class DeleteLineCommand extends Command {
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constructor(addressRange) {
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super(addressRange);
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}
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async run(context) {
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const [ firstLine, rest ] = context.patternSpace.split('\n', 2);
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context.patternSpace = rest ?? '';
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if (rest === undefined) {
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return JumpLocation.EndOfCycle;
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}
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return JumpLocation.StartOfCycle;
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}
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dump(indent) {
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return `${makeIndent(indent)}DELETE-LINE:\n`
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+ this.addressRange.dump(indent+1);
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}
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}
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// 'g' - Get the held line into the pattern
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class GetCommand extends Command {
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constructor(addressRange) {
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super(addressRange);
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}
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async run(context) {
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context.patternSpace = context.holdSpace;
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return JumpLocation.None;
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}
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dump(indent) {
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return `${makeIndent(indent)}GET-HELD:\n`
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+ this.addressRange.dump(indent+1);
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}
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}
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// 'G' - Get the held line and append it to the pattern
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class GetAppendCommand extends Command {
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constructor(addressRange) {
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super(addressRange);
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}
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async run(context) {
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context.patternSpace += '\n' + context.holdSpace;
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return JumpLocation.None;
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}
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dump(indent) {
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return `${makeIndent(indent)}GET-HELD-APPEND:\n`
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+ this.addressRange.dump(indent+1);
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}
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}
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// 'h' - Hold the pattern
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class HoldCommand extends Command {
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constructor(addressRange) {
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super(addressRange);
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}
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async run(context) {
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context.holdSpace = context.patternSpace;
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return JumpLocation.None;
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}
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dump(indent) {
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return `${makeIndent(indent)}HOLD:\n`
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+ this.addressRange.dump(indent+1);
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}
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}
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// 'H' - Hold append the pattern
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class HoldAppendCommand extends Command {
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constructor(addressRange) {
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super(addressRange);
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}
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async run(context) {
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context.holdSpace += '\n' + context.patternSpace;
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return JumpLocation.None;
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}
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dump(indent) {
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return `${makeIndent(indent)}HOLD-APPEND:\n`
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+ this.addressRange.dump(indent+1);
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}
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}
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// 'i' - Insert text
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class InsertTextCommand extends Command {
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constructor(addressRange, text) {
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super(addressRange);
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this.text = text;
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}
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async run(context) {
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await context.out.write(this.text + '\n');
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return JumpLocation.None;
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}
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dump(indent) {
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return `${makeIndent(indent)}INSERT-TEXT:\n`
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+ this.addressRange.dump(indent+1)
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+ `${makeIndent(indent+1)}CONTENTS: '${this.text}'\n`;
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}
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}
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// 'l' - Print pattern in debug format
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class DebugPrintCommand extends Command {
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constructor(addressRange) {
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super(addressRange);
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}
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async run(context) {
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let output = '';
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for (const c of context.patternSpace) {
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if (c < ' ') {
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const charCode = c.charCodeAt(0);
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switch (charCode) {
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case 0x07: output += '\\a'; break;
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case 0x08: output += '\\b'; break;
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case 0x0C: output += '\\f'; break;
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case 0x0A: output += '$\n'; break;
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case 0x0D: output += '\\r'; break;
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case 0x09: output += '\\t'; break;
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case 0x0B: output += '\\v'; break;
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default: {
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const octal = charCode.toString(8);
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output += '\\' + '0'.repeat(3 - octal.length) + octal;
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}
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}
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} else if (c === '\\') {
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output += '\\\\';
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} else {
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output += c;
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}
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}
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await context.out.write(output);
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return JumpLocation.None;
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}
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dump(indent) {
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return `${makeIndent(indent)}DEBUG-PRINT:\n`
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+ this.addressRange.dump(indent+1);
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}
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}
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// 'p' - Print pattern
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class PrintCommand extends Command {
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constructor(addressRange) {
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super(addressRange);
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}
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async run(context) {
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await context.out.write(context.patternSpace);
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return JumpLocation.None;
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}
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dump(indent) {
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return `${makeIndent(indent)}PRINT:\n`
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+ this.addressRange.dump(indent+1);
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}
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}
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// 'P' - Print first line of pattern
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class PrintLineCommand extends Command {
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constructor(addressRange) {
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super(addressRange);
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}
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async run(context) {
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const firstLine = context.patternSpace.split('\n', 2)[0];
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await context.out.write(firstLine);
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return JumpLocation.None;
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}
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dump(indent) {
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return `${makeIndent(indent)}PRINT-LINE:\n`
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+ this.addressRange.dump(indent+1);
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}
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}
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// 'q' - Quit
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class QuitCommand extends Command {
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constructor(addressRange) {
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super(addressRange);
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}
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async run(context) {
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return JumpLocation.Quit;
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}
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dump(indent) {
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return `${makeIndent(indent)}QUIT:\n`
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+ this.addressRange.dump(indent+1);
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}
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}
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// 'Q' - Quit, suppressing the default output
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class QuitSilentCommand extends Command {
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constructor(addressRange) {
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super(addressRange);
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}
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async run(context) {
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return JumpLocation.QuitSilent;
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}
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dump(indent) {
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return `${makeIndent(indent)}QUIT-SILENT:\n`
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+ this.addressRange.dump(indent+1);
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}
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}
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// 'x' - Exchange hold and pattern
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class ExchangeCommand extends Command {
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constructor(addressRange) {
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super(addressRange);
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}
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async run(context) {
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const oldPattern = context.patternSpace;
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context.patternSpace = context.holdSpace;
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context.holdSpace = oldPattern;
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return JumpLocation.None;
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}
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dump(indent) {
|
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return `${makeIndent(indent)}EXCHANGE:\n`
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||||
+ this.addressRange.dump(indent+1);
|
||||
}
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||||
}
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// 'y' - Transliterate characters
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class TransliterateCommand extends Command {
|
||||
constructor(addressRange, inputCharacters, replacementCharacters) {
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super(addressRange);
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this.inputCharacters = inputCharacters;
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this.replacementCharacters = replacementCharacters;
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||||
|
||||
if (inputCharacters.length !== replacementCharacters.length) {
|
||||
throw new Error('inputCharacters and replacementCharacters must be the same length!');
|
||||
}
|
||||
}
|
||||
|
||||
async run(context) {
|
||||
let newPatternSpace = '';
|
||||
for (let i = 0; i < context.patternSpace.length; ++i) {
|
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const char = context.patternSpace[i];
|
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const replacementIndex = this.inputCharacters.indexOf(char);
|
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if (replacementIndex !== -1) {
|
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newPatternSpace += this.replacementCharacters[replacementIndex];
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continue;
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}
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newPatternSpace += char;
|
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}
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context.patternSpace = newPatternSpace;
|
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return JumpLocation.None;
|
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}
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||||
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||||
dump(indent) {
|
||||
return `${makeIndent(indent)}TRANSLITERATE:\n`
|
||||
+ this.addressRange.dump(indent+1)
|
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+ `${makeIndent(indent+1)}FROM '${this.inputCharacters}'\n`
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+ `${makeIndent(indent+1)}TO '${this.replacementCharacters}'\n`;
|
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}
|
||||
}
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// 'z' - Zap, delete the pattern without ending cycle
|
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class ZapCommand extends Command {
|
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constructor(addressRange) {
|
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super(addressRange);
|
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}
|
||||
|
||||
async run(context) {
|
||||
context.patternSpace = '';
|
||||
return JumpLocation.None;
|
||||
}
|
||||
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||||
dump(indent) {
|
||||
return `${makeIndent(indent)}ZAP:\n`
|
||||
+ this.addressRange.dump(indent+1);
|
||||
}
|
||||
}
|
||||
|
||||
const CycleResult = {
|
||||
Continue: Symbol('Continue'),
|
||||
Quit: Symbol('Quit'),
|
||||
QuitSilent: Symbol('QuitSilent'),
|
||||
};
|
||||
|
||||
class Script {
|
||||
constructor(commands) {
|
||||
this.commands = commands;
|
||||
}
|
||||
|
||||
async runCycle(context) {
|
||||
for (let i = 0; i < this.commands.length; i++) {
|
||||
const command = this.commands[i];
|
||||
command.updateMatchState(context);
|
||||
const result = await command.runCommand(context);
|
||||
switch (result) {
|
||||
case JumpLocation.Label:
|
||||
// TODO: Implement labels
|
||||
break;
|
||||
case JumpLocation.Quit:
|
||||
return CycleResult.Quit;
|
||||
case JumpLocation.QuitSilent:
|
||||
return CycleResult.QuitSilent;
|
||||
case JumpLocation.StartOfCycle:
|
||||
i = -1; // To start at 0 after the loop increment.
|
||||
continue;
|
||||
case JumpLocation.EndOfCycle:
|
||||
return CycleResult.Continue;
|
||||
case JumpLocation.None:
|
||||
continue;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
dump() {
|
||||
return `SCRIPT:\n`
|
||||
+ this.commands.map(command => command.dump(1)).join('');
|
||||
}
|
||||
}
|
||||
|
||||
function parseScript(scriptString) {
|
||||
const commands = [];
|
||||
|
||||
// Generate a hard-coded script for now.
|
||||
// TODO: Actually parse input!
|
||||
|
||||
commands.push(new TransliterateCommand(new AddressRange(), 'abcdefABCDEF', 'ABCDEFabcdef'));
|
||||
// commands.push(new ZapCommand(new AddressRange({start: new Address(1), end: new Address(10)})));
|
||||
// commands.push(new HoldAppendCommand(new AddressRange({start: new Address(1), end: new Address(10)})));
|
||||
// commands.push(new GetCommand(new AddressRange({start: new Address(11)})));
|
||||
// commands.push(new DebugPrintCommand(new AddressRange()));
|
||||
|
||||
// commands.push(new ReplaceCommand(new AddressRange({start: new Address(3), end: new Address(30)}), "LOL"));
|
||||
|
||||
// commands.push(new GroupCommand(new AddressRange({ start: new Address(5), end: new Address(10) }), [
|
||||
// // new LineNumberCommand(),
|
||||
// // new TextCommand(new AddressRange({ start: new Address(8) }), "Well hello friends! :^)"),
|
||||
// new QuitCommand(new AddressRange({ start: new Address(8) })),
|
||||
// new NoopCommand(new AddressRange()),
|
||||
// new PrintCommand(new AddressRange({ start: new Address(2), end: new Address(14) })),
|
||||
// ]));
|
||||
|
||||
// commands.push(new LineNumberCommand(new AddressRange({ start: new Address(5), end: new Address(10) })));
|
||||
// commands.push(new PrintCommand());
|
||||
// commands.push(new NoopCommand());
|
||||
// commands.push(new PrintCommand());
|
||||
|
||||
return new Script(commands);
|
||||
}
|
||||
import { parseScript } from './sed/parser.js';
|
||||
|
||||
export default {
|
||||
name: 'sed',
|
||||
@ -685,41 +72,6 @@ export default {
|
||||
|
||||
const script = parseScript(scriptString);
|
||||
await out.write(script.dump());
|
||||
|
||||
const context = {
|
||||
out: out,
|
||||
patternSpace: '',
|
||||
holdSpace: '\n',
|
||||
lineNumber: 1,
|
||||
queuedOutput: '',
|
||||
}
|
||||
|
||||
// All remaining positionals are file paths to process.
|
||||
for (const relPath of positionals) {
|
||||
context.lineNumber = 1;
|
||||
for await (const line of fileLines(ctx, relPath)) {
|
||||
context.patternSpace = line.replace(/\n$/, '');
|
||||
const result = await script.runCycle(context);
|
||||
switch (result) {
|
||||
case CycleResult.Quit: {
|
||||
if (!values.quiet) {
|
||||
await out.write(context.patternSpace + '\n');
|
||||
}
|
||||
return;
|
||||
}
|
||||
case CycleResult.QuitSilent: {
|
||||
return;
|
||||
}
|
||||
}
|
||||
if (!values.quiet) {
|
||||
await out.write(context.patternSpace + '\n');
|
||||
}
|
||||
if (context.queuedOutput) {
|
||||
await out.write(context.queuedOutput + '\n');
|
||||
context.queuedOutput = '';
|
||||
}
|
||||
context.lineNumber++;
|
||||
}
|
||||
}
|
||||
await script.run(ctx);
|
||||
}
|
||||
};
|
||||
|
||||
130
packages/phoenix/src/puter-shell/coreutils/sed/address.js
Normal file
130
packages/phoenix/src/puter-shell/coreutils/sed/address.js
Normal file
@ -0,0 +1,130 @@
|
||||
/*
|
||||
* Copyright (C) 2024 Puter Technologies Inc.
|
||||
*
|
||||
* This file is part of Phoenix Shell.
|
||||
*
|
||||
* Phoenix Shell is free software: you can redistribute it and/or modify
|
||||
* it under the terms of the GNU Affero General Public License as published
|
||||
* by the Free Software Foundation, either version 3 of the License, or
|
||||
* (at your option) any later version.
|
||||
*
|
||||
* This program is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU Affero General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU Affero General Public License
|
||||
* along with this program. If not, see <https://www.gnu.org/licenses/>.
|
||||
*/
|
||||
import { makeIndent } from './utils.js';
|
||||
|
||||
// Either a line number or a regex
|
||||
export class Address {
|
||||
constructor(value) {
|
||||
this.value = value;
|
||||
}
|
||||
|
||||
matches(lineNumber, line) {
|
||||
if (this.value instanceof RegExp) {
|
||||
return this.value.test(line);
|
||||
}
|
||||
return this.value === lineNumber;
|
||||
}
|
||||
|
||||
isLineNumberBefore(lineNumber) {
|
||||
return (typeof this.value === 'number') && this.value < lineNumber;
|
||||
}
|
||||
|
||||
dump(indent) {
|
||||
if (this.value instanceof RegExp) {
|
||||
return `${makeIndent(indent)}REGEX: ${this.value}\n`;
|
||||
}
|
||||
return `${makeIndent(indent)}LINE: ${this.value}\n`;
|
||||
}
|
||||
}
|
||||
|
||||
export class AddressRange {
|
||||
// Three kinds of AddressRange:
|
||||
// - Empty (includes everything)
|
||||
// - Single (matches individual line)
|
||||
// - Range (matches lines between start and end, inclusive)
|
||||
constructor({ start, end, inverted = false } = {}) {
|
||||
this.start = start;
|
||||
this.end = end;
|
||||
this.inverted = inverted;
|
||||
this.insideRange = false;
|
||||
this.leaveRangeNextLine = false;
|
||||
}
|
||||
|
||||
updateMatchState(lineNumber, line) {
|
||||
// Only ranges have a state to update
|
||||
if (!(this.start && this.end)) {
|
||||
return;
|
||||
}
|
||||
|
||||
// Reset our state each time we start a new file.
|
||||
if (lineNumber === 1) {
|
||||
this.insideRange = false;
|
||||
this.leaveRangeNextLine = false;
|
||||
}
|
||||
|
||||
// Leave the range if the previous line matched the end.
|
||||
if (this.leaveRangeNextLine) {
|
||||
this.insideRange = false;
|
||||
this.leaveRangeNextLine = false;
|
||||
}
|
||||
|
||||
if (this.insideRange) {
|
||||
// We're inside the range, does this line end it?
|
||||
// If the end address is a line number in the past, yes, immediately.
|
||||
if (this.end.isLineNumberBefore(lineNumber)) {
|
||||
this.insideRange = false;
|
||||
return;
|
||||
}
|
||||
// If the line matches the end address, include it but leave the range on the next line.
|
||||
this.leaveRangeNextLine = this.end.matches(lineNumber, line);
|
||||
} else {
|
||||
// Does this line start the range?
|
||||
this.insideRange = this.start.matches(lineNumber, line);
|
||||
}
|
||||
}
|
||||
|
||||
matches(lineNumber, line) {
|
||||
const invertIfNeeded = (value) => {
|
||||
return this.inverted ? !value : value;
|
||||
};
|
||||
|
||||
// Empty - matches all lines
|
||||
if (!this.start) {
|
||||
return invertIfNeeded(true);
|
||||
}
|
||||
|
||||
// Range
|
||||
if (this.end) {
|
||||
return invertIfNeeded(this.insideRange);
|
||||
}
|
||||
|
||||
// Single
|
||||
return invertIfNeeded(this.start.matches(lineNumber, line));
|
||||
}
|
||||
|
||||
dump(indent) {
|
||||
const inverted = this.inverted ? `${makeIndent(indent+1)}(INVERTED)\n` : '';
|
||||
|
||||
if (!this.start) {
|
||||
return `${makeIndent(indent)}ADDRESS RANGE (EMPTY)\n`
|
||||
+ inverted;
|
||||
}
|
||||
|
||||
if (this.end) {
|
||||
return `${makeIndent(indent)}ADDRESS RANGE (RANGE):\n`
|
||||
+ inverted
|
||||
+ this.start.dump(indent+1)
|
||||
+ this.end.dump(indent+1);
|
||||
}
|
||||
|
||||
return `${makeIndent(indent)}ADDRESS RANGE (SINGLE):\n`
|
||||
+ this.start.dump(indent+1)
|
||||
+ inverted;
|
||||
}
|
||||
}
|
||||
448
packages/phoenix/src/puter-shell/coreutils/sed/command.js
Normal file
448
packages/phoenix/src/puter-shell/coreutils/sed/command.js
Normal file
@ -0,0 +1,448 @@
|
||||
/*
|
||||
* Copyright (C) 2024 Puter Technologies Inc.
|
||||
*
|
||||
* This file is part of Phoenix Shell.
|
||||
*
|
||||
* Phoenix Shell is free software: you can redistribute it and/or modify
|
||||
* it under the terms of the GNU Affero General Public License as published
|
||||
* by the Free Software Foundation, either version 3 of the License, or
|
||||
* (at your option) any later version.
|
||||
*
|
||||
* This program is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU Affero General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU Affero General Public License
|
||||
* along with this program. If not, see <https://www.gnu.org/licenses/>.
|
||||
*/
|
||||
import { AddressRange } from './address.js';
|
||||
import { makeIndent } from './utils.js';
|
||||
|
||||
export const JumpLocation = {
|
||||
None: Symbol('None'),
|
||||
EndOfCycle: Symbol('EndOfCycle'),
|
||||
StartOfCycle: Symbol('StartOfCycle'),
|
||||
Label: Symbol('Label'),
|
||||
Quit: Symbol('Quit'),
|
||||
QuitSilent: Symbol('QuitSilent'),
|
||||
};
|
||||
|
||||
export class Command {
|
||||
constructor(addressRange) {
|
||||
this.addressRange = addressRange ?? new AddressRange();
|
||||
}
|
||||
|
||||
updateMatchState(context) {
|
||||
this.addressRange.updateMatchState(context.lineNumber, context.patternSpace);
|
||||
}
|
||||
|
||||
async runCommand(context) {
|
||||
if (this.addressRange.matches(context.lineNumber, context.patternSpace)) {
|
||||
return await this.run(context);
|
||||
}
|
||||
return JumpLocation.None;
|
||||
}
|
||||
|
||||
async run(context) {
|
||||
throw new Error('run() not implemented for ' + this.constructor.name);
|
||||
}
|
||||
|
||||
dump(indent) {
|
||||
throw new Error('dump() not implemented for ' + this.constructor.name);
|
||||
}
|
||||
}
|
||||
|
||||
// '{}' - Group other commands
|
||||
export class GroupCommand extends Command {
|
||||
constructor(addressRange, subCommands) {
|
||||
super(addressRange);
|
||||
this.subCommands = subCommands;
|
||||
}
|
||||
|
||||
updateMatchState(context) {
|
||||
super.updateMatchState(context);
|
||||
for (const command of this.subCommands) {
|
||||
command.updateMatchState(context);
|
||||
}
|
||||
}
|
||||
|
||||
async run(context) {
|
||||
for (const command of this.subCommands) {
|
||||
const result = await command.runCommand(context);
|
||||
if (result !== JumpLocation.None) {
|
||||
return result;
|
||||
}
|
||||
}
|
||||
return JumpLocation.None;
|
||||
}
|
||||
|
||||
dump(indent) {
|
||||
return `${makeIndent(indent)}GROUP:\n`
|
||||
+ this.addressRange.dump(indent+1)
|
||||
+ `${makeIndent(indent+1)}CHILDREN:\n`
|
||||
+ this.subCommands.map(command => command.dump(indent+2)).join('');
|
||||
}
|
||||
}
|
||||
|
||||
// '=' - Output line number
|
||||
export class LineNumberCommand extends Command {
|
||||
constructor(addressRange) {
|
||||
super(addressRange);
|
||||
}
|
||||
|
||||
async run(context) {
|
||||
await context.out.write(`${context.lineNumber}\n`);
|
||||
return JumpLocation.None;
|
||||
}
|
||||
|
||||
dump(indent) {
|
||||
return `${makeIndent(indent)}LINE-NUMBER:\n`
|
||||
+ this.addressRange.dump(indent+1);
|
||||
}
|
||||
}
|
||||
|
||||
// 'a' - Append text
|
||||
export class AppendTextCommand extends Command {
|
||||
constructor(addressRange, text) {
|
||||
super(addressRange);
|
||||
this.text = text;
|
||||
}
|
||||
|
||||
async run(context) {
|
||||
context.queuedOutput += this.text + '\n';
|
||||
return JumpLocation.None;
|
||||
}
|
||||
|
||||
dump(indent) {
|
||||
return `${makeIndent(indent)}APPEND-TEXT:\n`
|
||||
+ this.addressRange.dump(indent+1)
|
||||
+ `${makeIndent(indent+1)}CONTENTS: '${this.text}'\n`;
|
||||
}
|
||||
}
|
||||
|
||||
// 'c' - Replace line with text
|
||||
export class ReplaceCommand extends Command {
|
||||
constructor(addressRange, text) {
|
||||
super(addressRange);
|
||||
this.text = text;
|
||||
}
|
||||
|
||||
async run(context) {
|
||||
context.patternSpace = '';
|
||||
// Output if we're either a 0-address range, 1-address range, or 2-address on the last line.
|
||||
if (this.addressRange.leaveRangeNextLine || !this.addressRange.end) {
|
||||
await context.out.write(this.text + '\n');
|
||||
}
|
||||
return JumpLocation.EndOfCycle;
|
||||
}
|
||||
|
||||
dump(indent) {
|
||||
return `${makeIndent(indent)}REPLACE-TEXT:\n`
|
||||
+ this.addressRange.dump(indent+1)
|
||||
+ `${makeIndent(indent+1)}CONTENTS: '${this.text}'\n`;
|
||||
}
|
||||
}
|
||||
|
||||
// 'd' - Delete pattern
|
||||
export class DeleteCommand extends Command {
|
||||
constructor(addressRange) {
|
||||
super(addressRange);
|
||||
}
|
||||
|
||||
async run(context) {
|
||||
context.patternSpace = '';
|
||||
return JumpLocation.EndOfCycle;
|
||||
}
|
||||
|
||||
dump(indent) {
|
||||
return `${makeIndent(indent)}DELETE:\n`
|
||||
+ this.addressRange.dump(indent+1);
|
||||
}
|
||||
}
|
||||
|
||||
// 'D' - Delete first line of pattern
|
||||
export class DeleteLineCommand extends Command {
|
||||
constructor(addressRange) {
|
||||
super(addressRange);
|
||||
}
|
||||
|
||||
async run(context) {
|
||||
const [ firstLine, rest ] = context.patternSpace.split('\n', 2);
|
||||
context.patternSpace = rest ?? '';
|
||||
if (rest === undefined) {
|
||||
return JumpLocation.EndOfCycle;
|
||||
}
|
||||
return JumpLocation.StartOfCycle;
|
||||
}
|
||||
|
||||
dump(indent) {
|
||||
return `${makeIndent(indent)}DELETE-LINE:\n`
|
||||
+ this.addressRange.dump(indent+1);
|
||||
}
|
||||
}
|
||||
|
||||
// 'g' - Get the held line into the pattern
|
||||
export class GetCommand extends Command {
|
||||
constructor(addressRange) {
|
||||
super(addressRange);
|
||||
}
|
||||
|
||||
async run(context) {
|
||||
context.patternSpace = context.holdSpace;
|
||||
return JumpLocation.None;
|
||||
}
|
||||
|
||||
dump(indent) {
|
||||
return `${makeIndent(indent)}GET-HELD:\n`
|
||||
+ this.addressRange.dump(indent+1);
|
||||
}
|
||||
}
|
||||
|
||||
// 'G' - Get the held line and append it to the pattern
|
||||
export class GetAppendCommand extends Command {
|
||||
constructor(addressRange) {
|
||||
super(addressRange);
|
||||
}
|
||||
|
||||
async run(context) {
|
||||
context.patternSpace += '\n' + context.holdSpace;
|
||||
return JumpLocation.None;
|
||||
}
|
||||
|
||||
dump(indent) {
|
||||
return `${makeIndent(indent)}GET-HELD-APPEND:\n`
|
||||
+ this.addressRange.dump(indent+1);
|
||||
}
|
||||
}
|
||||
|
||||
// 'h' - Hold the pattern
|
||||
export class HoldCommand extends Command {
|
||||
constructor(addressRange) {
|
||||
super(addressRange);
|
||||
}
|
||||
|
||||
async run(context) {
|
||||
context.holdSpace = context.patternSpace;
|
||||
return JumpLocation.None;
|
||||
}
|
||||
|
||||
dump(indent) {
|
||||
return `${makeIndent(indent)}HOLD:\n`
|
||||
+ this.addressRange.dump(indent+1);
|
||||
}
|
||||
}
|
||||
|
||||
// 'H' - Hold append the pattern
|
||||
export class HoldAppendCommand extends Command {
|
||||
constructor(addressRange) {
|
||||
super(addressRange);
|
||||
}
|
||||
|
||||
async run(context) {
|
||||
context.holdSpace += '\n' + context.patternSpace;
|
||||
return JumpLocation.None;
|
||||
}
|
||||
|
||||
dump(indent) {
|
||||
return `${makeIndent(indent)}HOLD-APPEND:\n`
|
||||
+ this.addressRange.dump(indent+1);
|
||||
}
|
||||
}
|
||||
|
||||
// 'i' - Insert text
|
||||
export class InsertTextCommand extends Command {
|
||||
constructor(addressRange, text) {
|
||||
super(addressRange);
|
||||
this.text = text;
|
||||
}
|
||||
|
||||
async run(context) {
|
||||
await context.out.write(this.text + '\n');
|
||||
return JumpLocation.None;
|
||||
}
|
||||
|
||||
dump(indent) {
|
||||
return `${makeIndent(indent)}INSERT-TEXT:\n`
|
||||
+ this.addressRange.dump(indent+1)
|
||||
+ `${makeIndent(indent+1)}CONTENTS: '${this.text}'\n`;
|
||||
}
|
||||
}
|
||||
|
||||
// 'l' - Print pattern in debug format
|
||||
export class DebugPrintCommand extends Command {
|
||||
constructor(addressRange) {
|
||||
super(addressRange);
|
||||
}
|
||||
|
||||
async run(context) {
|
||||
let output = '';
|
||||
for (const c of context.patternSpace) {
|
||||
if (c < ' ') {
|
||||
const charCode = c.charCodeAt(0);
|
||||
switch (charCode) {
|
||||
case 0x07: output += '\\a'; break;
|
||||
case 0x08: output += '\\b'; break;
|
||||
case 0x0C: output += '\\f'; break;
|
||||
case 0x0A: output += '$\n'; break;
|
||||
case 0x0D: output += '\\r'; break;
|
||||
case 0x09: output += '\\t'; break;
|
||||
case 0x0B: output += '\\v'; break;
|
||||
default: {
|
||||
const octal = charCode.toString(8);
|
||||
output += '\\' + '0'.repeat(3 - octal.length) + octal;
|
||||
}
|
||||
}
|
||||
} else if (c === '\\') {
|
||||
output += '\\\\';
|
||||
} else {
|
||||
output += c;
|
||||
}
|
||||
}
|
||||
await context.out.write(output);
|
||||
return JumpLocation.None;
|
||||
}
|
||||
|
||||
dump(indent) {
|
||||
return `${makeIndent(indent)}DEBUG-PRINT:\n`
|
||||
+ this.addressRange.dump(indent+1);
|
||||
}
|
||||
}
|
||||
|
||||
// 'p' - Print pattern
|
||||
export class PrintCommand extends Command {
|
||||
constructor(addressRange) {
|
||||
super(addressRange);
|
||||
}
|
||||
|
||||
async run(context) {
|
||||
await context.out.write(context.patternSpace);
|
||||
return JumpLocation.None;
|
||||
}
|
||||
|
||||
dump(indent) {
|
||||
return `${makeIndent(indent)}PRINT:\n`
|
||||
+ this.addressRange.dump(indent+1);
|
||||
}
|
||||
}
|
||||
|
||||
// 'P' - Print first line of pattern
|
||||
export class PrintLineCommand extends Command {
|
||||
constructor(addressRange) {
|
||||
super(addressRange);
|
||||
}
|
||||
|
||||
async run(context) {
|
||||
const firstLine = context.patternSpace.split('\n', 2)[0];
|
||||
await context.out.write(firstLine);
|
||||
return JumpLocation.None;
|
||||
}
|
||||
|
||||
dump(indent) {
|
||||
return `${makeIndent(indent)}PRINT-LINE:\n`
|
||||
+ this.addressRange.dump(indent+1);
|
||||
}
|
||||
}
|
||||
|
||||
// 'q' - Quit
|
||||
export class QuitCommand extends Command {
|
||||
constructor(addressRange) {
|
||||
super(addressRange);
|
||||
}
|
||||
|
||||
async run(context) {
|
||||
return JumpLocation.Quit;
|
||||
}
|
||||
|
||||
dump(indent) {
|
||||
return `${makeIndent(indent)}QUIT:\n`
|
||||
+ this.addressRange.dump(indent+1);
|
||||
}
|
||||
}
|
||||
|
||||
// 'Q' - Quit, suppressing the default output
|
||||
export class QuitSilentCommand extends Command {
|
||||
constructor(addressRange) {
|
||||
super(addressRange);
|
||||
}
|
||||
|
||||
async run(context) {
|
||||
return JumpLocation.QuitSilent;
|
||||
}
|
||||
|
||||
dump(indent) {
|
||||
return `${makeIndent(indent)}QUIT-SILENT:\n`
|
||||
+ this.addressRange.dump(indent+1);
|
||||
}
|
||||
}
|
||||
|
||||
// 'x' - Exchange hold and pattern
|
||||
export class ExchangeCommand extends Command {
|
||||
constructor(addressRange) {
|
||||
super(addressRange);
|
||||
}
|
||||
|
||||
async run(context) {
|
||||
const oldPattern = context.patternSpace;
|
||||
context.patternSpace = context.holdSpace;
|
||||
context.holdSpace = oldPattern;
|
||||
return JumpLocation.None;
|
||||
}
|
||||
|
||||
dump(indent) {
|
||||
return `${makeIndent(indent)}EXCHANGE:\n`
|
||||
+ this.addressRange.dump(indent+1);
|
||||
}
|
||||
}
|
||||
|
||||
// 'y' - Transliterate characters
|
||||
export class TransliterateCommand extends Command {
|
||||
constructor(addressRange, inputCharacters, replacementCharacters) {
|
||||
super(addressRange);
|
||||
this.inputCharacters = inputCharacters;
|
||||
this.replacementCharacters = replacementCharacters;
|
||||
|
||||
if (inputCharacters.length !== replacementCharacters.length) {
|
||||
throw new Error('inputCharacters and replacementCharacters must be the same length!');
|
||||
}
|
||||
}
|
||||
|
||||
async run(context) {
|
||||
let newPatternSpace = '';
|
||||
for (let i = 0; i < context.patternSpace.length; ++i) {
|
||||
const char = context.patternSpace[i];
|
||||
const replacementIndex = this.inputCharacters.indexOf(char);
|
||||
if (replacementIndex !== -1) {
|
||||
newPatternSpace += this.replacementCharacters[replacementIndex];
|
||||
continue;
|
||||
}
|
||||
newPatternSpace += char;
|
||||
}
|
||||
context.patternSpace = newPatternSpace;
|
||||
return JumpLocation.None;
|
||||
}
|
||||
|
||||
dump(indent) {
|
||||
return `${makeIndent(indent)}TRANSLITERATE:\n`
|
||||
+ this.addressRange.dump(indent+1)
|
||||
+ `${makeIndent(indent+1)}FROM '${this.inputCharacters}'\n`
|
||||
+ `${makeIndent(indent+1)}TO '${this.replacementCharacters}'\n`;
|
||||
}
|
||||
}
|
||||
|
||||
// 'z' - Zap, delete the pattern without ending cycle
|
||||
export class ZapCommand extends Command {
|
||||
constructor(addressRange) {
|
||||
super(addressRange);
|
||||
}
|
||||
|
||||
async run(context) {
|
||||
context.patternSpace = '';
|
||||
return JumpLocation.None;
|
||||
}
|
||||
|
||||
dump(indent) {
|
||||
return `${makeIndent(indent)}ZAP:\n`
|
||||
+ this.addressRange.dump(indent+1);
|
||||
}
|
||||
}
|
||||
51
packages/phoenix/src/puter-shell/coreutils/sed/parser.js
Normal file
51
packages/phoenix/src/puter-shell/coreutils/sed/parser.js
Normal file
@ -0,0 +1,51 @@
|
||||
/*
|
||||
* Copyright (C) 2024 Puter Technologies Inc.
|
||||
*
|
||||
* This file is part of Phoenix Shell.
|
||||
*
|
||||
* Phoenix Shell is free software: you can redistribute it and/or modify
|
||||
* it under the terms of the GNU Affero General Public License as published
|
||||
* by the Free Software Foundation, either version 3 of the License, or
|
||||
* (at your option) any later version.
|
||||
*
|
||||
* This program is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU Affero General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU Affero General Public License
|
||||
* along with this program. If not, see <https://www.gnu.org/licenses/>.
|
||||
*/
|
||||
import { AddressRange } from './address.js';
|
||||
import { TransliterateCommand } from './command.js';
|
||||
import { Script } from './script.js';
|
||||
|
||||
export const parseScript = (scriptString) => {
|
||||
const commands = [];
|
||||
|
||||
// Generate a hard-coded script for now.
|
||||
// TODO: Actually parse input!
|
||||
|
||||
commands.push(new TransliterateCommand(new AddressRange(), 'abcdefABCDEF', 'ABCDEFabcdef'));
|
||||
// commands.push(new ZapCommand(new AddressRange({start: new Address(1), end: new Address(10)})));
|
||||
// commands.push(new HoldAppendCommand(new AddressRange({start: new Address(1), end: new Address(10)})));
|
||||
// commands.push(new GetCommand(new AddressRange({start: new Address(11)})));
|
||||
// commands.push(new DebugPrintCommand(new AddressRange()));
|
||||
|
||||
// commands.push(new ReplaceCommand(new AddressRange({start: new Address(3), end: new Address(30)}), "LOL"));
|
||||
|
||||
// commands.push(new GroupCommand(new AddressRange({ start: new Address(5), end: new Address(10) }), [
|
||||
// // new LineNumberCommand(),
|
||||
// // new TextCommand(new AddressRange({ start: new Address(8) }), "Well hello friends! :^)"),
|
||||
// new QuitCommand(new AddressRange({ start: new Address(8) })),
|
||||
// new NoopCommand(new AddressRange()),
|
||||
// new PrintCommand(new AddressRange({ start: new Address(2), end: new Address(14) })),
|
||||
// ]));
|
||||
|
||||
// commands.push(new LineNumberCommand(new AddressRange({ start: new Address(5), end: new Address(10) })));
|
||||
// commands.push(new PrintCommand());
|
||||
// commands.push(new NoopCommand());
|
||||
// commands.push(new PrintCommand());
|
||||
|
||||
return new Script(commands);
|
||||
}
|
||||
102
packages/phoenix/src/puter-shell/coreutils/sed/script.js
Normal file
102
packages/phoenix/src/puter-shell/coreutils/sed/script.js
Normal file
@ -0,0 +1,102 @@
|
||||
/*
|
||||
* Copyright (C) 2024 Puter Technologies Inc.
|
||||
*
|
||||
* This file is part of Phoenix Shell.
|
||||
*
|
||||
* Phoenix Shell is free software: you can redistribute it and/or modify
|
||||
* it under the terms of the GNU Affero General Public License as published
|
||||
* by the Free Software Foundation, either version 3 of the License, or
|
||||
* (at your option) any later version.
|
||||
*
|
||||
* This program is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU Affero General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU Affero General Public License
|
||||
* along with this program. If not, see <https://www.gnu.org/licenses/>.
|
||||
*/
|
||||
import { JumpLocation } from './command.js';
|
||||
import { fileLines } from '../../../util/file.js';
|
||||
|
||||
const CycleResult = {
|
||||
Continue: Symbol('Continue'),
|
||||
Quit: Symbol('Quit'),
|
||||
QuitSilent: Symbol('QuitSilent'),
|
||||
};
|
||||
|
||||
export class Script {
|
||||
constructor(commands) {
|
||||
this.commands = commands;
|
||||
}
|
||||
|
||||
async runCycle(context) {
|
||||
for (let i = 0; i < this.commands.length; i++) {
|
||||
const command = this.commands[i];
|
||||
command.updateMatchState(context);
|
||||
const result = await command.runCommand(context);
|
||||
switch (result) {
|
||||
case JumpLocation.Label:
|
||||
// TODO: Implement labels
|
||||
break;
|
||||
case JumpLocation.Quit:
|
||||
return CycleResult.Quit;
|
||||
case JumpLocation.QuitSilent:
|
||||
return CycleResult.QuitSilent;
|
||||
case JumpLocation.StartOfCycle:
|
||||
i = -1; // To start at 0 after the loop increment.
|
||||
continue;
|
||||
case JumpLocation.EndOfCycle:
|
||||
return CycleResult.Continue;
|
||||
case JumpLocation.None:
|
||||
continue;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
async run(ctx) {
|
||||
const { out, err } = ctx.externs;
|
||||
const { positionals, values } = ctx.locals;
|
||||
|
||||
const context = {
|
||||
out: ctx.externs.out,
|
||||
patternSpace: '',
|
||||
holdSpace: '\n',
|
||||
lineNumber: 1,
|
||||
queuedOutput: '',
|
||||
};
|
||||
|
||||
// All remaining positionals are file paths to process.
|
||||
for (const relPath of positionals) {
|
||||
context.lineNumber = 1;
|
||||
for await (const line of fileLines(ctx, relPath)) {
|
||||
context.patternSpace = line.replace(/\n$/, '');
|
||||
const result = await this.runCycle(context);
|
||||
switch (result) {
|
||||
case CycleResult.Quit: {
|
||||
if (!values.quiet) {
|
||||
await out.write(context.patternSpace + '\n');
|
||||
}
|
||||
return;
|
||||
}
|
||||
case CycleResult.QuitSilent: {
|
||||
return;
|
||||
}
|
||||
}
|
||||
if (!values.quiet) {
|
||||
await out.write(context.patternSpace + '\n');
|
||||
}
|
||||
if (context.queuedOutput) {
|
||||
await out.write(context.queuedOutput + '\n');
|
||||
context.queuedOutput = '';
|
||||
}
|
||||
context.lineNumber++;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
dump() {
|
||||
return `SCRIPT:\n`
|
||||
+ this.commands.map(command => command.dump(1)).join('');
|
||||
}
|
||||
}
|
||||
21
packages/phoenix/src/puter-shell/coreutils/sed/utils.js
Normal file
21
packages/phoenix/src/puter-shell/coreutils/sed/utils.js
Normal file
@ -0,0 +1,21 @@
|
||||
/*
|
||||
* Copyright (C) 2024 Puter Technologies Inc.
|
||||
*
|
||||
* This file is part of Phoenix Shell.
|
||||
*
|
||||
* Phoenix Shell is free software: you can redistribute it and/or modify
|
||||
* it under the terms of the GNU Affero General Public License as published
|
||||
* by the Free Software Foundation, either version 3 of the License, or
|
||||
* (at your option) any later version.
|
||||
*
|
||||
* This program is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU Affero General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU Affero General Public License
|
||||
* along with this program. If not, see <https://www.gnu.org/licenses/>.
|
||||
*/
|
||||
export function makeIndent(size) {
|
||||
return ' '.repeat(size);
|
||||
}
|
||||
Loading…
Reference in New Issue
Block a user