mirror of
https://github.com/denoland/deno.git
synced 2024-11-29 16:30:56 -05:00
548 lines
15 KiB
TypeScript
548 lines
15 KiB
TypeScript
// Copyright 2018-2019 the Deno authors. All rights reserved. MIT license.
|
|
import { existsSync } from "../fs/exists.ts";
|
|
import { readFileStrSync } from "../fs/read_file_str.ts";
|
|
import { deepAssign } from "../util/deep_assign.ts";
|
|
import { pad } from "../strings/pad.ts";
|
|
|
|
class KeyValuePair {
|
|
key: string;
|
|
value: unknown;
|
|
}
|
|
|
|
class ParserGroup {
|
|
type: string;
|
|
name: string;
|
|
arrValues: unknown[] = [];
|
|
objValues: object = {};
|
|
}
|
|
|
|
class ParserContext {
|
|
currentGroup?: ParserGroup;
|
|
output: object = {};
|
|
}
|
|
|
|
class Parser {
|
|
tomlLines: string[];
|
|
context: ParserContext;
|
|
constructor(tomlString: string) {
|
|
this.tomlLines = this._split(tomlString);
|
|
this.context = new ParserContext();
|
|
}
|
|
_sanitize(): void {
|
|
const out = [];
|
|
for (let i = 0; i < this.tomlLines.length; i++) {
|
|
const s = this.tomlLines[i];
|
|
const trimmed = s.trim();
|
|
if (trimmed !== "" && trimmed[0] !== "#") {
|
|
out.push(s);
|
|
}
|
|
}
|
|
this.tomlLines = out;
|
|
this._mergeMultilines();
|
|
}
|
|
|
|
_mergeMultilines(): void {
|
|
function arrayStart(line: string): boolean {
|
|
const reg = /.*=\s*\[/g;
|
|
return reg.test(line) && !(line[line.length - 1] === "]");
|
|
}
|
|
|
|
function arrayEnd(line: string): boolean {
|
|
return line[line.length - 1] === "]";
|
|
}
|
|
|
|
function stringStart(line: string): boolean {
|
|
const m = line.match(/.*=\s*(?:\"\"\"|''')/);
|
|
if (!m) {
|
|
return false;
|
|
}
|
|
return !line.endsWith(`"""`) || !line.endsWith(`'''`);
|
|
}
|
|
|
|
function stringEnd(line: string): boolean {
|
|
return line.endsWith(`'''`) || line.endsWith(`"""`);
|
|
}
|
|
|
|
function isLiteralString(line: string): boolean {
|
|
return line.match(/'''/) ? true : false;
|
|
}
|
|
|
|
let merged = [],
|
|
acc = [],
|
|
isLiteral = false,
|
|
capture = false,
|
|
captureType = "",
|
|
merge = false;
|
|
|
|
for (let i = 0; i < this.tomlLines.length; i++) {
|
|
const line = this.tomlLines[i];
|
|
const trimmed = line.trim();
|
|
if (!capture && arrayStart(trimmed)) {
|
|
capture = true;
|
|
captureType = "array";
|
|
} else if (!capture && stringStart(trimmed)) {
|
|
isLiteral = isLiteralString(trimmed);
|
|
capture = true;
|
|
captureType = "string";
|
|
} else if (capture && arrayEnd(trimmed)) {
|
|
merge = true;
|
|
} else if (capture && stringEnd(trimmed)) {
|
|
merge = true;
|
|
}
|
|
|
|
if (capture) {
|
|
if (isLiteral) {
|
|
acc.push(line);
|
|
} else {
|
|
acc.push(trimmed);
|
|
}
|
|
} else {
|
|
if (isLiteral) {
|
|
merged.push(line);
|
|
} else {
|
|
merged.push(trimmed);
|
|
}
|
|
}
|
|
|
|
if (merge) {
|
|
capture = false;
|
|
merge = false;
|
|
if (captureType === "string") {
|
|
merged.push(
|
|
acc
|
|
.join("\n")
|
|
.replace(/"""/g, '"')
|
|
.replace(/'''/g, `'`)
|
|
.replace(/\n/g, "\\n")
|
|
);
|
|
isLiteral = false;
|
|
} else {
|
|
merged.push(acc.join(""));
|
|
}
|
|
captureType = "";
|
|
acc = [];
|
|
}
|
|
}
|
|
this.tomlLines = merged;
|
|
}
|
|
_unflat(keys: string[], values: object = {}, cObj: object = {}): object {
|
|
let out = {};
|
|
if (keys.length === 0) {
|
|
return cObj;
|
|
} else {
|
|
if (Object.keys(cObj).length === 0) {
|
|
cObj = values;
|
|
}
|
|
let key = keys.pop();
|
|
out[key] = cObj;
|
|
return this._unflat(keys, values, out);
|
|
}
|
|
}
|
|
_groupToOutput(): void {
|
|
const arrProperty = this.context.currentGroup.name
|
|
.replace(/"/g, "")
|
|
.replace(/'/g, "")
|
|
.split(".");
|
|
let u = {};
|
|
if (this.context.currentGroup.type === "array") {
|
|
u = this._unflat(arrProperty, this.context.currentGroup.arrValues);
|
|
} else {
|
|
u = this._unflat(arrProperty, this.context.currentGroup.objValues);
|
|
}
|
|
deepAssign(this.context.output, u);
|
|
delete this.context.currentGroup;
|
|
}
|
|
_split(str: string): string[] {
|
|
let out = [];
|
|
out.push(...str.split("\n"));
|
|
return out;
|
|
}
|
|
_isGroup(line: string): boolean {
|
|
const t = line.trim();
|
|
return t[0] === "[" && /\[(.*)\]/.exec(t) ? true : false;
|
|
}
|
|
_isDeclaration(line: string): boolean {
|
|
return line.split("=").length > 1;
|
|
}
|
|
_createGroup(line: string): void {
|
|
const captureReg = /\[(.*)\]/;
|
|
if (this.context.currentGroup) {
|
|
this._groupToOutput();
|
|
}
|
|
let g = new ParserGroup();
|
|
g.name = line.match(captureReg)[1];
|
|
if (g.name.match(/\[.*\]/)) {
|
|
g.type = "array";
|
|
g.name = g.name.match(captureReg)[1];
|
|
} else {
|
|
g.type = "object";
|
|
}
|
|
this.context.currentGroup = g;
|
|
}
|
|
_processDeclaration(line: string): KeyValuePair {
|
|
let kv = new KeyValuePair();
|
|
const idx = line.indexOf("=");
|
|
kv.key = line.substring(0, idx).trim();
|
|
kv.value = this._parseData(line.slice(idx + 1));
|
|
return kv;
|
|
}
|
|
// TODO (zekth) Need refactor using ACC
|
|
_parseData(dataString: string): unknown {
|
|
dataString = dataString.trim();
|
|
|
|
if (this._isDate(dataString)) {
|
|
return new Date(dataString.split("#")[0].trim());
|
|
}
|
|
|
|
if (this._isLocalTime(dataString)) {
|
|
return eval(`"${dataString.split("#")[0].trim()}"`);
|
|
}
|
|
|
|
const cut3 = dataString.substring(0, 3).toLowerCase();
|
|
const cut4 = dataString.substring(0, 4).toLowerCase();
|
|
if (cut3 === "inf" || cut4 === "+inf") {
|
|
return Infinity;
|
|
}
|
|
if (cut4 === "-inf") {
|
|
return -Infinity;
|
|
}
|
|
|
|
if (cut3 === "nan" || cut4 === "+nan" || cut4 === "-nan") {
|
|
return NaN;
|
|
}
|
|
|
|
// If binary / octal / hex
|
|
const hex = /(0(?:x|o|b)[0-9a-f_]*)[^#]/gi.exec(dataString);
|
|
if (hex && hex[0]) {
|
|
return hex[0].trim();
|
|
}
|
|
|
|
const testNumber = this._isParsableNumber(dataString);
|
|
if (testNumber && !isNaN(testNumber as number)) {
|
|
return testNumber;
|
|
}
|
|
|
|
const invalidArr = /,\]/g.exec(dataString);
|
|
if (invalidArr) {
|
|
dataString = dataString.replace(/,]/g, "]");
|
|
}
|
|
const m = /(?:\'|\[|{|\").*(?:\'|\]|\"|})\s*[^#]/g.exec(dataString);
|
|
if (m) {
|
|
dataString = m[0].trim();
|
|
}
|
|
if (dataString[0] === "{" && dataString[dataString.length - 1] === "}") {
|
|
const reg = /([a-zA-Z0-9-_\.]*) (=)/gi;
|
|
let result;
|
|
while ((result = reg.exec(dataString))) {
|
|
let ogVal = result[0];
|
|
let newVal = ogVal
|
|
.replace(result[1], `"${result[1]}"`)
|
|
.replace(result[2], ":");
|
|
dataString = dataString.replace(ogVal, newVal);
|
|
}
|
|
return JSON.parse(dataString);
|
|
}
|
|
|
|
// Handle First and last EOL for multiline strings
|
|
if (dataString.startsWith(`"\\n`)) {
|
|
dataString = dataString.replace(`"\\n`, `"`);
|
|
} else if (dataString.startsWith(`'\\n`)) {
|
|
dataString = dataString.replace(`'\\n`, `'`);
|
|
}
|
|
if (dataString.endsWith(`\\n"`)) {
|
|
dataString = dataString.replace(`\\n"`, `"`);
|
|
} else if (dataString.endsWith(`\\n'`)) {
|
|
dataString = dataString.replace(`\\n'`, `'`);
|
|
}
|
|
return eval(dataString);
|
|
}
|
|
_isLocalTime(str: string): boolean {
|
|
const reg = /(\d{2}):(\d{2}):(\d{2})/;
|
|
return reg.test(str);
|
|
}
|
|
_isParsableNumber(dataString: string): number | boolean {
|
|
const m = /((?:\+|-|)[0-9_\.e+\-]*)[^#]/i.exec(dataString.trim());
|
|
if (!m) {
|
|
return false;
|
|
} else {
|
|
return parseFloat(m[0].replace(/_/g, ""));
|
|
}
|
|
}
|
|
_isDate(dateStr: string): boolean {
|
|
const reg = /\d{4}-\d{2}-\d{2}/;
|
|
return reg.test(dateStr);
|
|
}
|
|
_parseDeclarationName(declaration: string): string[] {
|
|
const out = [];
|
|
let acc = [];
|
|
let inLitteral = false;
|
|
for (let i = 0; i < declaration.length; i++) {
|
|
const c = declaration[i];
|
|
switch (c) {
|
|
case ".":
|
|
if (!inLitteral) {
|
|
out.push(acc.join(""));
|
|
acc = [];
|
|
} else {
|
|
acc.push(c);
|
|
}
|
|
break;
|
|
case `"`:
|
|
if (inLitteral) {
|
|
inLitteral = false;
|
|
} else {
|
|
inLitteral = true;
|
|
}
|
|
break;
|
|
default:
|
|
acc.push(c);
|
|
break;
|
|
}
|
|
}
|
|
if (acc.length !== 0) {
|
|
out.push(acc.join(""));
|
|
}
|
|
return out;
|
|
}
|
|
_parseLines(): void {
|
|
for (let i = 0; i < this.tomlLines.length; i++) {
|
|
const line = this.tomlLines[i];
|
|
|
|
// TODO (zekth) Handle unflat of array of tables
|
|
if (this._isGroup(line)) {
|
|
// if the current group is an array we push the
|
|
// parsed objects in it.
|
|
if (
|
|
this.context.currentGroup &&
|
|
this.context.currentGroup.type === "array"
|
|
) {
|
|
this.context.currentGroup.arrValues.push(
|
|
this.context.currentGroup.objValues
|
|
);
|
|
this.context.currentGroup.objValues = {};
|
|
}
|
|
// If we need to create a group or to change group
|
|
if (
|
|
!this.context.currentGroup ||
|
|
(this.context.currentGroup &&
|
|
this.context.currentGroup.name !==
|
|
line.replace(/\[/g, "").replace(/\]/g, ""))
|
|
) {
|
|
this._createGroup(line);
|
|
continue;
|
|
}
|
|
}
|
|
if (this._isDeclaration(line)) {
|
|
let kv = this._processDeclaration(line);
|
|
let key = kv.key;
|
|
let value = kv.value;
|
|
if (!this.context.currentGroup) {
|
|
this.context.output[key] = value;
|
|
} else {
|
|
this.context.currentGroup.objValues[key] = value;
|
|
}
|
|
}
|
|
}
|
|
if (this.context.currentGroup) {
|
|
if (this.context.currentGroup.type === "array") {
|
|
this.context.currentGroup.arrValues.push(
|
|
this.context.currentGroup.objValues
|
|
);
|
|
}
|
|
this._groupToOutput();
|
|
}
|
|
}
|
|
_cleanOutput(): void {
|
|
this._propertyClean(this.context.output);
|
|
}
|
|
_propertyClean(obj: object): void {
|
|
const keys = Object.keys(obj);
|
|
for (let i = 0; i < keys.length; i++) {
|
|
let k = keys[i];
|
|
let v = obj[k];
|
|
let pathDeclaration = this._parseDeclarationName(k);
|
|
delete obj[k];
|
|
if (pathDeclaration.length > 1) {
|
|
k = pathDeclaration.shift();
|
|
k = k.replace(/"/g, "");
|
|
v = this._unflat(pathDeclaration, v as object);
|
|
} else {
|
|
k = k.replace(/"/g, "");
|
|
}
|
|
obj[k] = v;
|
|
if (v instanceof Object) {
|
|
this._propertyClean(v);
|
|
}
|
|
}
|
|
}
|
|
parse(): object {
|
|
this._sanitize();
|
|
this._parseLines();
|
|
this._cleanOutput();
|
|
return this.context.output;
|
|
}
|
|
}
|
|
|
|
class Dumper {
|
|
maxPad: number = 0;
|
|
srcObject: object;
|
|
output: string[] = [];
|
|
constructor(srcObjc: object) {
|
|
this.srcObject = srcObjc;
|
|
}
|
|
dump(): string[] {
|
|
this.output = this._parse(this.srcObject);
|
|
this.output = this._format();
|
|
return this.output;
|
|
}
|
|
_parse(obj: object, path: string = ""): string[] {
|
|
const out = [];
|
|
const props = Object.keys(obj);
|
|
const propObj = props.filter(
|
|
e =>
|
|
(obj[e] instanceof Array && !this._isSimplySerializable(obj[e][0])) ||
|
|
!this._isSimplySerializable(obj[e])
|
|
);
|
|
const propPrim = props.filter(
|
|
e =>
|
|
!(obj[e] instanceof Array && !this._isSimplySerializable(obj[e][0])) &&
|
|
this._isSimplySerializable(obj[e])
|
|
);
|
|
const k = propPrim.concat(propObj);
|
|
for (let i = 0; i < k.length; i++) {
|
|
const prop = k[i];
|
|
const value = obj[prop];
|
|
if (value instanceof Date) {
|
|
out.push(this._dateDeclaration(prop, value));
|
|
} else if (typeof value === "string" || value instanceof RegExp) {
|
|
out.push(this._strDeclaration(prop, value.toString()));
|
|
} else if (typeof value === "number") {
|
|
out.push(this._numberDeclaration(prop, value));
|
|
} else if (
|
|
value instanceof Array &&
|
|
this._isSimplySerializable(value[0])
|
|
) {
|
|
// only if primitives types in the array
|
|
out.push(this._arrayDeclaration(prop, value));
|
|
} else if (
|
|
value instanceof Array &&
|
|
!this._isSimplySerializable(value[0])
|
|
) {
|
|
// array of objects
|
|
for (let i = 0; i < value.length; i++) {
|
|
out.push("");
|
|
out.push(this._headerGroup(path + prop));
|
|
out.push(...this._parse(value[i], `${path}${prop}.`));
|
|
}
|
|
} else if (typeof value === "object") {
|
|
out.push("");
|
|
out.push(this._header(path + prop));
|
|
out.push(...this._parse(value, `${path}${prop}.`));
|
|
}
|
|
}
|
|
out.push("");
|
|
return out;
|
|
}
|
|
_isSimplySerializable(value: unknown): boolean {
|
|
return (
|
|
typeof value === "string" ||
|
|
typeof value === "number" ||
|
|
value instanceof RegExp ||
|
|
value instanceof Date ||
|
|
value instanceof Array
|
|
);
|
|
}
|
|
_header(title: string): string {
|
|
return `[${title}]`;
|
|
}
|
|
_headerGroup(title: string): string {
|
|
return `[[${title}]]`;
|
|
}
|
|
_declaration(title: string): string {
|
|
if (title.length > this.maxPad) {
|
|
this.maxPad = title.length;
|
|
}
|
|
return `${title} = `;
|
|
}
|
|
_arrayDeclaration(title: string, value: unknown[]): string {
|
|
return `${this._declaration(title)}${JSON.stringify(value)}`;
|
|
}
|
|
_strDeclaration(title: string, value: string): string {
|
|
return `${this._declaration(title)}"${value}"`;
|
|
}
|
|
_numberDeclaration(title: string, value: number): string {
|
|
switch (value) {
|
|
case Infinity:
|
|
return `${this._declaration(title)}inf`;
|
|
case -Infinity:
|
|
return `${this._declaration(title)}-inf`;
|
|
default:
|
|
return `${this._declaration(title)}${value}`;
|
|
}
|
|
}
|
|
_dateDeclaration(title: string, value: Date): string {
|
|
function dtPad(v: string, lPad: number = 2): string {
|
|
return pad(v, lPad, { char: "0" });
|
|
}
|
|
let m = dtPad((value.getUTCMonth() + 1).toString());
|
|
let d = dtPad(value.getUTCDate().toString());
|
|
const h = dtPad(value.getUTCHours().toString());
|
|
const min = dtPad(value.getUTCMinutes().toString());
|
|
const s = dtPad(value.getUTCSeconds().toString());
|
|
const ms = dtPad(value.getUTCMilliseconds().toString(), 3);
|
|
const fmtDate = `${value.getUTCFullYear()}-${m}-${d}T${h}:${min}:${s}.${ms}`;
|
|
return `${this._declaration(title)}${fmtDate}`;
|
|
}
|
|
_format(): string[] {
|
|
const rDeclaration = /(.*)\s=/;
|
|
const out = [];
|
|
for (let i = 0; i < this.output.length; i++) {
|
|
const l = this.output[i];
|
|
// we keep empty entry for array of objects
|
|
if (l[0] === "[" && l[1] !== "[") {
|
|
// empty object
|
|
if (this.output[i + 1] === "") {
|
|
i += 1;
|
|
continue;
|
|
}
|
|
out.push(l);
|
|
} else {
|
|
const m = rDeclaration.exec(l);
|
|
if (m) {
|
|
out.push(l.replace(m[1], pad(m[1], this.maxPad, { side: "right" })));
|
|
} else {
|
|
out.push(l);
|
|
}
|
|
}
|
|
}
|
|
// Cleaning multiple spaces
|
|
const cleanedOutput = [];
|
|
for (let i = 0; i < out.length; i++) {
|
|
const l = out[i];
|
|
if (!(l === "" && out[i + 1] === "")) {
|
|
cleanedOutput.push(l);
|
|
}
|
|
}
|
|
return cleanedOutput;
|
|
}
|
|
}
|
|
|
|
export function stringify(srcObj: object): string {
|
|
let out: string[] = [];
|
|
out = new Dumper(srcObj).dump();
|
|
return out.join("\n");
|
|
}
|
|
|
|
export function parse(tomlString: string): object {
|
|
// File is potentially using EOL CRLF
|
|
tomlString = tomlString.replace(/\r\n/g, "\n").replace(/\\\n/g, "\n");
|
|
return new Parser(tomlString).parse();
|
|
}
|
|
|
|
export function parseFile(filePath: string): object {
|
|
if (!existsSync(filePath)) {
|
|
throw new Error("File not found");
|
|
}
|
|
const strFile = readFileStrSync(filePath);
|
|
return parse(strFile);
|
|
}
|