Merge branch 'feature-unicode-strings'

This commit is contained in:
n1474335 2018-01-12 23:57:20 +00:00
commit 192d0ed8a6
12 changed files with 498 additions and 311 deletions

5
package-lock.json generated
View file

@ -10256,6 +10256,11 @@
"resolved": "https://registry.npmjs.org/xpath/-/xpath-0.0.27.tgz",
"integrity": "sha512-fg03WRxtkCV6ohClePNAECYsmpKKTv5L8y/X3Dn1hQrec3POx2jHZ/0P2qQ6HvsrU1BmeqXcof3NGGueG6LxwQ=="
},
"xregexp": {
"version": "4.0.0",
"resolved": "https://registry.npmjs.org/xregexp/-/xregexp-4.0.0.tgz",
"integrity": "sha512-PHyM+sQouu7xspQQwELlGwwd05mXUFqwFYfqPO0cC7x4fxyHnnuetmQr6CjJiafIDoH4MogHb9dOoJzR/Y4rFg=="
},
"xtend": {
"version": "4.0.1",
"resolved": "https://registry.npmjs.org/xtend/-/xtend-4.0.1.tgz",

View file

@ -103,6 +103,7 @@
"vkbeautify": "^0.99.3",
"xmldom": "^0.1.27",
"xpath": "0.0.27",
"xregexp": "^4.0.0",
"zlibjs": "^0.3.1"
},
"scripts": {

View file

@ -30,6 +30,7 @@ import NetBIOS from "../operations/NetBIOS.js";
import PHP from "../operations/PHP.js";
import PublicKey from "../operations/PublicKey.js";
import Punycode from "../operations/Punycode.js";
import Regex from "../operations/Regex.js";
import Rotate from "../operations/Rotate.js";
import SeqUtils from "../operations/SeqUtils.js";
import Shellcode from "../operations/Shellcode.js";
@ -2058,9 +2059,8 @@ const OperationConfig = {
args: []
},
"Find / Replace": {
module: "Default",
module: "Regex",
description: "Replaces all occurrences of the first string with the second.<br><br> Includes support for regular expressions (regex), simple strings and extended strings (which support \\n, \\r, \\t, \\b, \\f and escaped hex bytes using \\x notation, e.g. \\x00 for a null byte).",
manualBake: true,
inputType: "string",
outputType: "string",
args: [
@ -2068,7 +2068,7 @@ const OperationConfig = {
name: "Find",
type: "toggleString",
value: "",
toggleValues: StrUtils.SEARCH_TYPE
toggleValues: Regex.SEARCH_TYPE
},
{
name: "Replace",
@ -2078,17 +2078,17 @@ const OperationConfig = {
{
name: "Global match",
type: "boolean",
value: StrUtils.FIND_REPLACE_GLOBAL,
value: Regex.FIND_REPLACE_GLOBAL,
},
{
name: "Case insensitive",
type: "boolean",
value: StrUtils.FIND_REPLACE_CASE,
value: Regex.FIND_REPLACE_CASE,
},
{
name: "Multiline matching",
type: "boolean",
value: StrUtils.FIND_REPLACE_MULTILINE,
value: Regex.FIND_REPLACE_MULTILINE,
},
]
@ -2138,7 +2138,6 @@ const OperationConfig = {
"Filter": {
module: "Default",
description: "Splits up the input using the specified delimiter and then filters each branch based on a regular expression.",
manualBake: true,
inputType: "string",
outputType: "string",
args: [
@ -2160,16 +2159,26 @@ const OperationConfig = {
]
},
"Strings": {
module: "Default",
module: "Regex",
description: "Extracts all strings from the input.",
inputType: "string",
outputType: "string",
args: [
{
name: "Encoding",
type: "option",
value: Extract.ENCODING_LIST
},
{
name: "Minimum length",
type: "number",
value: Extract.MIN_STRING_LEN
},
{
name: "Match",
type: "option",
value: Extract.STRING_MATCH_TYPE
},
{
name: "Display total",
type: "boolean",
@ -2178,7 +2187,7 @@ const OperationConfig = {
]
},
"Extract IP addresses": {
module: "Default",
module: "Regex",
description: "Extracts all IPv4 and IPv6 addresses.<br><br>Warning: Given a string <code>710.65.0.456</code>, this will match <code>10.65.0.45</code> so always check the original input!",
inputType: "string",
outputType: "string",
@ -2206,7 +2215,7 @@ const OperationConfig = {
]
},
"Extract email addresses": {
module: "Default",
module: "Regex",
description: "Extracts all email addresses from the input.",
inputType: "string",
outputType: "string",
@ -2219,7 +2228,7 @@ const OperationConfig = {
]
},
"Extract MAC addresses": {
module: "Default",
module: "Regex",
description: "Extracts all Media Access Control (MAC) addresses from the input.",
inputType: "string",
outputType: "string",
@ -2232,7 +2241,7 @@ const OperationConfig = {
]
},
"Extract URLs": {
module: "Default",
module: "Regex",
description: "Extracts Uniform Resource Locators (URLs) from the input. The protocol (http, ftp etc.) is required otherwise there will be far too many false positives.",
inputType: "string",
outputType: "string",
@ -2245,7 +2254,7 @@ const OperationConfig = {
]
},
"Extract domains": {
module: "Default",
module: "Regex",
description: "Extracts domain names.<br>Note that this will not include paths. Use <strong>Extract URLs</strong> to find entire URLs.",
inputType: "string",
outputType: "string",
@ -2258,7 +2267,7 @@ const OperationConfig = {
]
},
"Extract file paths": {
module: "Default",
module: "Regex",
description: "Extracts anything that looks like a Windows or UNIX file path.<br><br>Note that if UNIX is selected, there will likely be a lot of false positives.",
inputType: "string",
outputType: "string",
@ -2281,7 +2290,7 @@ const OperationConfig = {
]
},
"Extract dates": {
module: "Default",
module: "Regex",
description: "Extracts dates in the following formats<ul><li><code>yyyy-mm-dd</code></li><li><code>dd/mm/yyyy</code></li><li><code>mm/dd/yyyy</code></li></ul>Dividers can be any of /, -, . or space",
inputType: "string",
outputType: "string",
@ -2294,16 +2303,15 @@ const OperationConfig = {
]
},
"Regular expression": {
module: "Default",
description: "Define your own regular expression (regex) to search the input data with, optionally choosing from a list of pre-defined patterns.",
manualBake: true,
module: "Regex",
description: "Define your own regular expression (regex) to search the input data with, optionally choosing from a list of pre-defined patterns.<br><br>Supports extended regex syntax including the 'dot matches all' flag, named capture groups, full unicode coverage (including <code>\\p{}</code> categories and scripts as well as astral codes) and recursive matching.",
inputType: "string",
outputType: "html",
args: [
{
name: "Built in regexes",
type: "populateOption",
value: StrUtils.REGEX_PRE_POPULATE,
value: Regex.REGEX_PRE_POPULATE,
target: 1,
},
{
@ -2314,22 +2322,37 @@ const OperationConfig = {
{
name: "Case insensitive",
type: "boolean",
value: StrUtils.REGEX_CASE_INSENSITIVE
value: true
},
{
name: "Multiline matching",
name: "^ and $ match at newlines",
type: "boolean",
value: StrUtils.REGEX_MULTILINE_MATCHING
value: true
},
{
name: "Dot matches all",
type: "boolean",
value: false
},
{
name: "Unicode support",
type: "boolean",
value: false
},
{
name: "Astral support",
type: "boolean",
value: false
},
{
name: "Display total",
type: "boolean",
value: StrUtils.DISPLAY_TOTAL
value: Regex.DISPLAY_TOTAL
},
{
name: "Output format",
type: "option",
value: StrUtils.OUTPUT_FORMAT
value: Regex.OUTPUT_FORMAT
},
]
},

View file

@ -10,7 +10,6 @@ import Convert from "../../operations/Convert.js";
import DateTime from "../../operations/DateTime.js";
import Endian from "../../operations/Endian.js";
import Entropy from "../../operations/Entropy.js";
import Extract from "../../operations/Extract.js";
import FileType from "../../operations/FileType.js";
import Hexdump from "../../operations/Hexdump.js";
import HTML from "../../operations/HTML.js";
@ -99,11 +98,9 @@ OpModules.Default = {
"Format MAC addresses": MAC.runFormat,
"Encode NetBIOS Name": NetBIOS.runEncodeName,
"Decode NetBIOS Name": NetBIOS.runDecodeName,
"Regular expression": StrUtils.runRegex,
"Offset checker": StrUtils.runOffsetChecker,
"To Upper case": StrUtils.runUpper,
"To Lower case": StrUtils.runLower,
"Find / Replace": StrUtils.runFindReplace,
"Split": StrUtils.runSplit,
"Filter": StrUtils.runFilter,
"Escape string": StrUtils.runEscape,
@ -133,14 +130,6 @@ OpModules.Default = {
"Translate DateTime Format": DateTime.runTranslateFormat,
"From UNIX Timestamp": DateTime.runFromUnixTimestamp,
"To UNIX Timestamp": DateTime.runToUnixTimestamp,
"Strings": Extract.runStrings,
"Extract IP addresses": Extract.runIp,
"Extract email addresses": Extract.runEmail,
"Extract MAC addresses": Extract.runMac,
"Extract URLs": Extract.runUrls,
"Extract domains": Extract.runDomains,
"Extract file paths": Extract.runFilePaths,
"Extract dates": Extract.runDates,
"Microsoft Script Decoder": MS.runDecodeScript,
"Entropy": Entropy.runEntropy,
"Frequency distribution": Entropy.runFreqDistrib,

View file

@ -18,6 +18,7 @@ import HTTPModule from "./HTTP.js";
import ImageModule from "./Image.js";
import JSBNModule from "./JSBN.js";
import PublicKeyModule from "./PublicKey.js";
import RegexModule from "./Regex.js";
import ShellcodeModule from "./Shellcode.js";
import URLModule from "./URL.js";
@ -34,6 +35,7 @@ Object.assign(
ImageModule,
JSBNModule,
PublicKeyModule,
RegexModule,
ShellcodeModule,
URLModule
);

View file

@ -0,0 +1,30 @@
import Extract from "../../operations/Extract.js";
import Regex from "../../operations/Regex.js";
/**
* Regex module.
*
* Libraries:
* - XRegExp
*
* @author n1474335 [n1474335@gmail.com]
* @copyright Crown Copyright 2018
* @license Apache-2.0
*/
let OpModules = typeof self === "undefined" ? {} : self.OpModules || {};
OpModules.Regex = {
"Regular expression": Regex.runRegex,
"Find / Replace": Regex.runFindReplace,
"Strings": Extract.runStrings,
"Extract IP addresses": Extract.runIp,
"Extract email addresses": Extract.runEmail,
"Extract MAC addresses": Extract.runMac,
"Extract URLs": Extract.runUrls,
"Extract domains": Extract.runDomains,
"Extract file paths": Extract.runFilePaths,
"Extract dates": Extract.runDates,
};
export default OpModules;

View file

@ -1,3 +1,6 @@
import XRegExp from "xregexp";
/**
* Identifier extraction operations.
*
@ -26,6 +29,11 @@ const Extract = {
match;
while ((match = searchRegex.exec(input))) {
// Moves pointer when an empty string is matched (prevents infinite loop)
if (match.index === searchRegex.lastIndex) {
searchRegex.lastIndex++;
}
if (removeRegex && removeRegex.test(match[0]))
continue;
total++;
@ -43,7 +51,20 @@ const Extract = {
* @constant
* @default
*/
MIN_STRING_LEN: 3,
MIN_STRING_LEN: 4,
/**
* @constant
* @default
*/
STRING_MATCH_TYPE: [
"[ASCII]", "Alphanumeric + punctuation (A)", "All printable chars (A)", "Null-terminated strings (A)",
"[Unicode]", "Alphanumeric + punctuation (U)", "All printable chars (U)", "Null-terminated strings (U)"
],
/**
* @constant
* @default
*/
ENCODING_LIST: ["Single byte", "16-bit littleendian", "16-bit bigendian", "All"],
/**
* @constant
* @default
@ -58,10 +79,59 @@ const Extract = {
* @returns {string}
*/
runStrings: function(input, args) {
let minLen = args[0] || Extract.MIN_STRING_LEN,
displayTotal = args[1],
strings = "[A-Z\\d/\\-:.,_$%'\"()<>= !\\[\\]{}@]",
regex = new RegExp(strings + "{" + minLen + ",}", "ig");
const encoding = args[0],
minLen = args[1],
matchType = args[2],
displayTotal = args[3],
alphanumeric = "A-Z\\d",
punctuation = "/\\-:.,_$%'\"()<>= !\\[\\]{}@",
printable = "\x20-\x7e",
uniAlphanumeric = "\\pL\\pN",
uniPunctuation = "\\pP\\pZ",
uniPrintable = "\\pL\\pM\\pZ\\pS\\pN\\pP";
let strings = "";
switch (matchType) {
case "Alphanumeric + punctuation (A)":
strings = `[${alphanumeric + punctuation}]`;
break;
case "All printable chars (A)":
case "Null-terminated strings (A)":
strings = `[${printable}]`;
break;
case "Alphanumeric + punctuation (U)":
strings = `[${uniAlphanumeric + uniPunctuation}]`;
break;
case "All printable chars (U)":
case "Null-terminated strings (U)":
strings = `[${uniPrintable}]`;
break;
}
// UTF-16 support is hacked in by allowing null bytes on either side of the matched chars
switch (encoding) {
case "All":
strings = `(\x00?${strings}\x00?)`;
break;
case "16-bit littleendian":
strings = `(${strings}\x00)`;
break;
case "16-bit bigendian":
strings = `(\x00${strings})`;
break;
case "Single byte":
default:
break;
}
strings = `${strings}{${minLen},}`;
if (matchType.includes("Null-terminated")) {
strings += "\x00";
}
const regex = new XRegExp(strings, "ig");
return Extract._search(input, regex, null, displayTotal);
},

View file

@ -0,0 +1,278 @@
import XRegExp from "xregexp";
import Utils from "../Utils.js";
/**
* Regex operations.
*
* @author n1474335 [n1474335@gmail.com]
* @copyright Crown Copyright 2018
* @license Apache-2.0
*
* @namespace
*/
const Regex = {
/**
* @constant
* @default
*/
REGEX_PRE_POPULATE: [
{
name: "User defined",
value: ""
},
{
name: "IPv4 address",
value: "(?:(?:\\d|[01]?\\d\\d|2[0-4]\\d|25[0-5])\\.){3}(?:25[0-5]|2[0-4]\\d|[01]?\\d\\d|\\d)(?:\\/\\d{1,2})?"
},
{
name: "IPv6 address",
value: "((?=.*::)(?!.*::.+::)(::)?([\\dA-Fa-f]{1,4}:(:|\\b)|){5}|([\\dA-Fa-f]{1,4}:){6})((([\\dA-Fa-f]{1,4}((?!\\3)::|:\\b|(?![\\dA-Fa-f])))|(?!\\2\\3)){2}|(((2[0-4]|1\\d|[1-9])?\\d|25[0-5])\\.?\\b){4})"
},
{
name: "Email address",
value: "(\\w[-.\\w]*)@([-\\w]+(?:\\.[-\\w]+)*)\\.([A-Za-z]{2,4})"
},
{
name: "URL",
value: "([A-Za-z]+://)([-\\w]+(?:\\.\\w[-\\w]*)+)(:\\d+)?(/[^.!,?\"<>\\[\\]{}\\s\\x7F-\\xFF]*(?:[.!,?]+[^.!,?\"<>\\[\\]{}\\s\\x7F-\\xFF]+)*)?"
},
{
name: "Domain",
value: "\\b((?=[a-z0-9-]{1,63}\\.)(xn--)?[a-z0-9]+(-[a-z0-9]+)*\\.)+[a-z]{2,63}\\b"
},
{
name: "Windows file path",
value: "([A-Za-z]):\\\\((?:[A-Za-z\\d][A-Za-z\\d\\- \\x27_\\(\\)]{0,61}\\\\?)*[A-Za-z\\d][A-Za-z\\d\\- \\x27_\\(\\)]{0,61})(\\.[A-Za-z\\d]{1,6})?"
},
{
name: "UNIX file path",
value: "(?:/[A-Za-z\\d.][A-Za-z\\d\\-.]{0,61})+"
},
{
name: "MAC address",
value: "[A-Fa-f\\d]{2}(?:[:-][A-Fa-f\\d]{2}){5}"
},
{
name: "Date (yyyy-mm-dd)",
value: "((?:19|20)\\d\\d)[- /.](0[1-9]|1[012])[- /.](0[1-9]|[12][0-9]|3[01])"
},
{
name: "Date (dd/mm/yyyy)",
value: "(0[1-9]|[12][0-9]|3[01])[- /.](0[1-9]|1[012])[- /.]((?:19|20)\\d\\d)"
},
{
name: "Date (mm/dd/yyyy)",
value: "(0[1-9]|1[012])[- /.](0[1-9]|[12][0-9]|3[01])[- /.]((?:19|20)\\d\\d)"
},
{
name: "Strings",
value: "[A-Za-z\\d/\\-:.,_$%\\x27\"()<>= !\\[\\]{}@]{4,}"
},
],
/**
* @constant
* @default
*/
OUTPUT_FORMAT: ["Highlight matches", "List matches", "List capture groups", "List matches with capture groups"],
/**
* @constant
* @default
*/
DISPLAY_TOTAL: false,
/**
* Regular expression operation.
*
* @param {string} input
* @param {Object[]} args
* @returns {html}
*/
runRegex: function(input, args) {
const userRegex = args[1],
i = args[2],
m = args[3],
s = args[4],
u = args[5],
a = args[6],
displayTotal = args[7],
outputFormat = args[8];
let modifiers = "g";
if (i) modifiers += "i";
if (m) modifiers += "m";
if (s) modifiers += "s";
if (u) modifiers += "u";
if (a) modifiers += "A";
if (userRegex && userRegex !== "^" && userRegex !== "$") {
try {
const regex = new XRegExp(userRegex, modifiers);
switch (outputFormat) {
case "Highlight matches":
return Regex._regexHighlight(input, regex, displayTotal);
case "List matches":
return Utils.escapeHtml(Regex._regexList(input, regex, displayTotal, true, false));
case "List capture groups":
return Utils.escapeHtml(Regex._regexList(input, regex, displayTotal, false, true));
case "List matches with capture groups":
return Utils.escapeHtml(Regex._regexList(input, regex, displayTotal, true, true));
default:
return "Error: Invalid output format";
}
} catch (err) {
return "Invalid regex. Details: " + err.message;
}
} else {
return Utils.escapeHtml(input);
}
},
/**
* @constant
* @default
*/
SEARCH_TYPE: ["Regex", "Extended (\\n, \\t, \\x...)", "Simple string"],
/**
* @constant
* @default
*/
FIND_REPLACE_GLOBAL: true,
/**
* @constant
* @default
*/
FIND_REPLACE_CASE: false,
/**
* @constant
* @default
*/
FIND_REPLACE_MULTILINE: true,
/**
* Find / Replace operation.
*
* @param {string} input
* @param {Object[]} args
* @returns {string}
*/
runFindReplace: function(input, args) {
let find = args[0].string,
type = args[0].option,
replace = args[1],
g = args[2],
i = args[3],
m = args[4],
modifiers = "";
if (g) modifiers += "g";
if (i) modifiers += "i";
if (m) modifiers += "m";
if (type === "Regex") {
find = new RegExp(find, modifiers);
return input.replace(find, replace);
}
if (type.indexOf("Extended") === 0) {
find = Utils.parseEscapedChars(find);
}
find = new RegExp(Utils.escapeRegex(find), modifiers);
return input.replace(find, replace);
},
/**
* Adds HTML highlights to matches within a string.
*
* @private
* @param {string} input
* @param {RegExp} regex
* @param {boolean} displayTotal
* @returns {string}
*/
_regexHighlight: function(input, regex, displayTotal) {
let output = "",
m,
hl = 1,
i = 0,
total = 0;
while ((m = regex.exec(input))) {
// Moves pointer when an empty string is matched (prevents infinite loop)
if (m.index === regex.lastIndex) {
regex.lastIndex++;
}
// Add up to match
output += Utils.escapeHtml(input.slice(i, m.index));
// Add match with highlighting
output += "<span class='hl"+hl+"'>" + Utils.escapeHtml(m[0]) + "</span>";
// Switch highlight
hl = hl === 1 ? 2 : 1;
i = regex.lastIndex;
total++;
}
// Add all after final match
output += Utils.escapeHtml(input.slice(i, input.length));
if (displayTotal)
output = "Total found: " + total + "\n\n" + output;
return output;
},
/**
* Creates a string listing the matches within a string.
*
* @private
* @param {string} input
* @param {RegExp} regex
* @param {boolean} displayTotal
* @param {boolean} matches - Display full match
* @param {boolean} captureGroups - Display each of the capture groups separately
* @returns {string}
*/
_regexList: function(input, regex, displayTotal, matches, captureGroups) {
let output = "",
total = 0,
match;
while ((match = regex.exec(input))) {
// Moves pointer when an empty string is matched (prevents infinite loop)
if (match.index === regex.lastIndex) {
regex.lastIndex++;
}
total++;
if (matches) {
output += match[0] + "\n";
}
if (captureGroups) {
for (let i = 1; i < match.length; i++) {
if (matches) {
output += " Group " + i + ": ";
}
output += match[i] + "\n";
}
}
}
if (displayTotal)
output = "Total found: " + total + "\n\n" + output;
return output.slice(0, -1);
},
};
export default Regex;

View file

@ -12,128 +12,6 @@ import Utils from "../Utils.js";
*/
const StrUtils = {
/**
* @constant
* @default
*/
REGEX_PRE_POPULATE: [
{
name: "User defined",
value: ""
},
{
name: "IPv4 address",
value: "(?:(?:\\d|[01]?\\d\\d|2[0-4]\\d|25[0-5])\\.){3}(?:25[0-5]|2[0-4]\\d|[01]?\\d\\d|\\d)(?:\\/\\d{1,2})?"
},
{
name: "IPv6 address",
value: "((?=.*::)(?!.*::.+::)(::)?([\\dA-Fa-f]{1,4}:(:|\\b)|){5}|([\\dA-Fa-f]{1,4}:){6})((([\\dA-Fa-f]{1,4}((?!\\3)::|:\\b|(?![\\dA-Fa-f])))|(?!\\2\\3)){2}|(((2[0-4]|1\\d|[1-9])?\\d|25[0-5])\\.?\\b){4})"
},
{
name: "Email address",
value: "(\\w[-.\\w]*)@([-\\w]+(?:\\.[-\\w]+)*)\\.([A-Za-z]{2,4})"
},
{
name: "URL",
value: "([A-Za-z]+://)([-\\w]+(?:\\.\\w[-\\w]*)+)(:\\d+)?(/[^.!,?\"<>\\[\\]{}\\s\\x7F-\\xFF]*(?:[.!,?]+[^.!,?\"<>\\[\\]{}\\s\\x7F-\\xFF]+)*)?"
},
{
name: "Domain",
value: "\\b((?=[a-z0-9-]{1,63}\\.)(xn--)?[a-z0-9]+(-[a-z0-9]+)*\\.)+[a-z]{2,63}\\b"
},
{
name: "Windows file path",
value: "([A-Za-z]):\\\\((?:[A-Za-z\\d][A-Za-z\\d\\- \\x27_\\(\\)]{0,61}\\\\?)*[A-Za-z\\d][A-Za-z\\d\\- \\x27_\\(\\)]{0,61})(\\.[A-Za-z\\d]{1,6})?"
},
{
name: "UNIX file path",
value: "(?:/[A-Za-z\\d.][A-Za-z\\d\\-.]{0,61})+"
},
{
name: "MAC address",
value: "[A-Fa-f\\d]{2}(?:[:-][A-Fa-f\\d]{2}){5}"
},
{
name: "Date (yyyy-mm-dd)",
value: "((?:19|20)\\d\\d)[- /.](0[1-9]|1[012])[- /.](0[1-9]|[12][0-9]|3[01])"
},
{
name: "Date (dd/mm/yyyy)",
value: "(0[1-9]|[12][0-9]|3[01])[- /.](0[1-9]|1[012])[- /.]((?:19|20)\\d\\d)"
},
{
name: "Date (mm/dd/yyyy)",
value: "(0[1-9]|1[012])[- /.](0[1-9]|[12][0-9]|3[01])[- /.]((?:19|20)\\d\\d)"
},
{
name: "Strings",
value: "[A-Za-z\\d/\\-:.,_$%\\x27\"()<>= !\\[\\]{}@]{4,}"
},
],
/**
* @constant
* @default
*/
REGEX_CASE_INSENSITIVE: true,
/**
* @constant
* @default
*/
REGEX_MULTILINE_MATCHING: true,
/**
* @constant
* @default
*/
OUTPUT_FORMAT: ["Highlight matches", "List matches", "List capture groups", "List matches with capture groups"],
/**
* @constant
* @default
*/
DISPLAY_TOTAL: false,
/**
* Regular expression operation.
*
* @param {string} input
* @param {Object[]} args
* @returns {html}
*/
runRegex: function(input, args) {
let userRegex = args[1],
i = args[2],
m = args[3],
displayTotal = args[4],
outputFormat = args[5],
modifiers = "g";
if (i) modifiers += "i";
if (m) modifiers += "m";
if (userRegex && userRegex !== "^" && userRegex !== "$") {
try {
const regex = new RegExp(userRegex, modifiers);
switch (outputFormat) {
case "Highlight matches":
return StrUtils._regexHighlight(input, regex, displayTotal);
case "List matches":
return Utils.escapeHtml(StrUtils._regexList(input, regex, displayTotal, true, false));
case "List capture groups":
return Utils.escapeHtml(StrUtils._regexList(input, regex, displayTotal, false, true));
case "List matches with capture groups":
return Utils.escapeHtml(StrUtils._regexList(input, regex, displayTotal, true, true));
default:
return "Error: Invalid output format";
}
} catch (err) {
return "Invalid regex. Details: " + err.message;
}
} else {
return Utils.escapeHtml(input);
}
},
/**
* @constant
* @default
@ -183,62 +61,6 @@ const StrUtils = {
},
/**
* @constant
* @default
*/
SEARCH_TYPE: ["Regex", "Extended (\\n, \\t, \\x...)", "Simple string"],
/**
* @constant
* @default
*/
FIND_REPLACE_GLOBAL: true,
/**
* @constant
* @default
*/
FIND_REPLACE_CASE: false,
/**
* @constant
* @default
*/
FIND_REPLACE_MULTILINE: true,
/**
* Find / Replace operation.
*
* @param {string} input
* @param {Object[]} args
* @returns {string}
*/
runFindReplace: function(input, args) {
let find = args[0].string,
type = args[0].option,
replace = args[1],
g = args[2],
i = args[3],
m = args[4],
modifiers = "";
if (g) modifiers += "g";
if (i) modifiers += "i";
if (m) modifiers += "m";
if (type === "Regex") {
find = new RegExp(find, modifiers);
return input.replace(find, replace);
}
if (type.indexOf("Extended") === 0) {
find = Utils.parseEscapedChars(find);
}
find = new RegExp(Utils.escapeRegex(find), modifiers);
return input.replace(find, replace);
},
/**
* @constant
* @default
@ -576,84 +398,6 @@ const StrUtils = {
return dist.toString();
},
/**
* Adds HTML highlights to matches within a string.
*
* @private
* @param {string} input
* @param {RegExp} regex
* @param {boolean} displayTotal
* @returns {string}
*/
_regexHighlight: function(input, regex, displayTotal) {
let output = "",
m,
hl = 1,
i = 0,
total = 0;
while ((m = regex.exec(input))) {
// Add up to match
output += Utils.escapeHtml(input.slice(i, m.index));
// Add match with highlighting
output += "<span class='hl"+hl+"'>" + Utils.escapeHtml(m[0]) + "</span>";
// Switch highlight
hl = hl === 1 ? 2 : 1;
i = regex.lastIndex;
total++;
}
// Add all after final match
output += Utils.escapeHtml(input.slice(i, input.length));
if (displayTotal)
output = "Total found: " + total + "\n\n" + output;
return output;
},
/**
* Creates a string listing the matches within a string.
*
* @private
* @param {string} input
* @param {RegExp} regex
* @param {boolean} displayTotal
* @param {boolean} matches - Display full match
* @param {boolean} captureGroups - Display each of the capture groups separately
* @returns {string}
*/
_regexList: function(input, regex, displayTotal, matches, captureGroups) {
let output = "",
total = 0,
match;
while ((match = regex.exec(input))) {
total++;
if (matches) {
output += match[0] + "\n";
}
if (captureGroups) {
for (let i = 1; i < match.length; i++) {
if (matches) {
output += " Group " + i + ": ";
}
output += match[i] + "\n";
}
}
}
if (displayTotal)
output = "Total found: " + total + "\n\n" + output;
return output;
},
};
export default StrUtils;

View file

@ -30,6 +30,7 @@ import "./tests/operations/MS.js";
import "./tests/operations/PHP.js";
import "./tests/operations/NetBIOS.js";
import "./tests/operations/OTP.js";
import "./tests/operations/Regex.js";
import "./tests/operations/StrUtils.js";
import "./tests/operations/SeqUtils.js";

View file

@ -0,0 +1,59 @@
/**
* StrUtils tests.
*
* @author n1474335 [n1474335@gmail.com]
* @copyright Crown Copyright 2017
* @license Apache-2.0
*/
import TestRegister from "../../TestRegister.js";
TestRegister.addTests([
{
name: "Regex: non-HTML op",
input: "/<>",
expectedOutput: "/<>",
recipeConfig: [
{
"op": "Regular expression",
"args": ["User defined", "", true, true, false, false, false, false, "Highlight matches"]
},
{
"op": "Remove whitespace",
"args": [true, true, true, true, true, false]
}
],
},
{
name: "Regex: Dot matches all",
input: "Hello\nWorld",
expectedOutput: "Hello\nWorld",
recipeConfig: [
{
"op": "Regular expression",
"args": ["User defined", ".+", true, true, true, false, false, false, "List matches"]
}
],
},
{
name: "Regex: Astral off",
input: "𝌆😆",
expectedOutput: "",
recipeConfig: [
{
"op": "Regular expression",
"args": ["User defined", "\\pS", true, true, false, false, false, false, "List matches"]
}
],
},
{
name: "Regex: Astral on",
input: "𝌆😆",
expectedOutput: "𝌆\n😆",
recipeConfig: [
{
"op": "Regular expression",
"args": ["User defined", "\\pS", true, true, false, false, true, false, "List matches"]
}
],
}
]);

View file

@ -8,21 +8,6 @@
import TestRegister from "../../TestRegister.js";
TestRegister.addTests([
{
name: "Regex, non-HTML op",
input: "/<>",
expectedOutput: "/<>",
recipeConfig: [
{
"op": "Regular expression",
"args": ["User defined", "", true, true, false, "Highlight matches"]
},
{
"op": "Remove whitespace",
"args": [true, true, true, true, true, false]
}
],
},
{
name: "Diff, basic usage",
input: "testing23\n\ntesting123",