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authorRyan <ry@tinyclouds.org>2009-04-22 19:35:47 +0200
committerRyan <ry@tinyclouds.org>2009-04-22 19:35:47 +0200
commit40c0f755c998d2615fe8466aab20c6d81bd463e7 (patch)
tree51fcb08ba1bd3f745ceb43fd5f814a5700079881 /deps/v8/src/string.js
parenta93cf503073ba0258c55dec4dc325bdc1509b739 (diff)
downloadnode-new-40c0f755c998d2615fe8466aab20c6d81bd463e7.tar.gz
import full versions of dependency libraries!
Diffstat (limited to 'deps/v8/src/string.js')
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diff --git a/deps/v8/src/string.js b/deps/v8/src/string.js
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+// Copyright 2006-2008 the V8 project authors. All rights reserved.
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+// * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+// * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following
+// disclaimer in the documentation and/or other materials provided
+// with the distribution.
+// * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived
+// from this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+
+// This file relies on the fact that the following declaration has been made
+// in runtime.js:
+// const $String = global.String;
+// const $NaN = 0/0;
+
+
+// Set the String function and constructor.
+%SetCode($String, function(x) {
+ var value = %_ArgumentsLength() == 0 ? '' : ToString(x);
+ if (%IsConstructCall()) {
+ %_SetValueOf(this, value);
+ } else {
+ return value;
+ }
+});
+
+%FunctionSetPrototype($String, new $String());
+
+// ECMA-262 section 15.5.4.2
+function StringToString() {
+ if (!IS_STRING(this) && !%HasStringClass(this))
+ throw new $TypeError('String.prototype.toString is not generic');
+ return %_ValueOf(this);
+}
+
+
+// ECMA-262 section 15.5.4.3
+function StringValueOf() {
+ if (!IS_STRING(this) && !%HasStringClass(this))
+ throw new $TypeError('String.prototype.valueOf is not generic');
+ return %_ValueOf(this);
+}
+
+
+// ECMA-262, section 15.5.4.4
+function StringCharAt(pos) {
+ var char_code = %_FastCharCodeAt(this, index);
+ if (!%_IsSmi(char_code)) {
+ var subject = ToString(this);
+ var index = TO_INTEGER(pos);
+ if (index >= subject.length || index < 0) return "";
+ char_code = %StringCharCodeAt(subject, index);
+ }
+ return %CharFromCode(char_code);
+}
+
+
+// ECMA-262 section 15.5.4.5
+function StringCharCodeAt(pos) {
+ var fast_answer = %_FastCharCodeAt(this, pos);
+ if (%_IsSmi(fast_answer)) {
+ return fast_answer;
+ }
+ var subject = ToString(this);
+ var index = TO_INTEGER(pos);
+ return %StringCharCodeAt(subject, index);
+}
+
+
+// ECMA-262, section 15.5.4.6
+function StringConcat() {
+ var len = %_ArgumentsLength();
+ var parts = new $Array(len + 1);
+ parts[0] = ToString(this);
+ for (var i = 0; i < len; i++)
+ parts[i + 1] = ToString(%_Arguments(i));
+ return parts.join('');
+}
+
+// Match ES3 and Safari
+%FunctionSetLength(StringConcat, 1);
+
+
+// ECMA-262 section 15.5.4.7
+function StringIndexOf(searchString /* position */) { // length == 1
+ var subject_str = ToString(this);
+ var pattern_str = ToString(searchString);
+ var subject_str_len = subject_str.length;
+ var pattern_str_len = pattern_str.length;
+ var index = 0;
+ if (%_ArgumentsLength() > 1) {
+ var arg1 = %_Arguments(1); // position
+ index = TO_INTEGER(arg1);
+ }
+ if (index < 0) index = 0;
+ if (index > subject_str_len) index = subject_str_len;
+ if (pattern_str_len + index > subject_str_len) return -1;
+ return %StringIndexOf(subject_str, pattern_str, index);
+}
+
+
+// ECMA-262 section 15.5.4.8
+function StringLastIndexOf(searchString /* position */) { // length == 1
+ var sub = ToString(this);
+ var pat = ToString(searchString);
+ var index = (%_ArgumentsLength() > 1)
+ ? ToNumber(%_Arguments(1) /* position */)
+ : $NaN;
+ var firstIndex;
+ if ($isNaN(index)) {
+ firstIndex = sub.length - pat.length;
+ } else {
+ firstIndex = TO_INTEGER(index);
+ if (firstIndex + pat.length > sub.length) {
+ firstIndex = sub.length - pat.length;
+ }
+ }
+ return %StringLastIndexOf(sub, pat, firstIndex);
+}
+
+
+// ECMA-262 section 15.5.4.9
+//
+// This function is implementation specific. For now, we do not
+// do anything locale specific.
+function StringLocaleCompare(other) {
+ if (%_ArgumentsLength() === 0) return 0;
+
+ var this_str = ToString(this);
+ var other_str = ToString(other);
+ return %StringLocaleCompare(this_str, other_str);
+}
+
+
+// ECMA-262 section 15.5.4.10
+function StringMatch(regexp) {
+ if (!IS_REGEXP(regexp)) regexp = new ORIGINAL_REGEXP(regexp);
+ var subject = ToString(this);
+
+ if (!regexp.global) return regexp.exec(subject);
+ %_Log('regexp', 'regexp-match,%0S,%1r', [subject, regexp]);
+ // lastMatchInfo is defined in regexp-delay.js.
+ return %StringMatch(subject, regexp, lastMatchInfo);
+}
+
+
+// SubString is an internal function that returns the sub string of 'string'.
+// If resulting string is of length 1, we use the one character cache
+// otherwise we call the runtime system.
+function SubString(string, start, end) {
+ // Use the one character string cache.
+ if (start + 1 == end) {
+ var char_code = %_FastCharCodeAt(string, start);
+ if (!%_IsSmi(char_code)) {
+ char_code = %StringCharCodeAt(string, start);
+ }
+ return %CharFromCode(char_code);
+ }
+ return %StringSlice(string, start, end);
+}
+
+
+// ECMA-262, section 15.5.4.11
+function StringReplace(search, replace) {
+ var subject = ToString(this);
+
+ // Delegate to one of the regular expression variants if necessary.
+ if (IS_REGEXP(search)) {
+ %_Log('regexp', 'regexp-replace,%0r,%1S', [search, subject]);
+ if (IS_FUNCTION(replace)) {
+ return StringReplaceRegExpWithFunction(subject, search, replace);
+ } else {
+ return StringReplaceRegExp(subject, search, replace);
+ }
+ }
+
+ // Convert the search argument to a string and search for it.
+ search = ToString(search);
+ var start = %StringIndexOf(subject, search, 0);
+ if (start < 0) return subject;
+ var end = start + search.length;
+
+ var builder = new ReplaceResultBuilder(subject);
+ // prefix
+ builder.addSpecialSlice(0, start);
+
+ // Compute the string to replace with.
+ if (IS_FUNCTION(replace)) {
+ builder.add(replace.call(null, search, start, subject));
+ } else {
+ reusableMatchInfo[CAPTURE0] = start;
+ reusableMatchInfo[CAPTURE1] = end;
+ ExpandReplacement(ToString(replace), subject, reusableMatchInfo, builder);
+ }
+
+ // suffix
+ builder.addSpecialSlice(end, subject.length);
+
+ return builder.generate();
+}
+
+
+// This has the same size as the lastMatchInfo array, and can be used for
+// functions that expect that structure to be returned. It is used when the
+// needle is a string rather than a regexp. In this case we can't update
+// lastMatchArray without erroneously affecting the properties on the global
+// RegExp object.
+var reusableMatchInfo = [2, "", "", -1, -1];
+
+
+// Helper function for regular expressions in String.prototype.replace.
+function StringReplaceRegExp(subject, regexp, replace) {
+ replace = ToString(replace);
+ return %StringReplaceRegExpWithString(subject,
+ regexp,
+ replace,
+ lastMatchInfo);
+};
+
+
+// Expand the $-expressions in the string and return a new string with
+// the result.
+function ExpandReplacement(string, subject, matchInfo, builder) {
+ var next = %StringIndexOf(string, '$', 0);
+ if (next < 0) {
+ builder.add(string);
+ return;
+ }
+
+ // Compute the number of captures; see ECMA-262, 15.5.4.11, p. 102.
+ var m = NUMBER_OF_CAPTURES(matchInfo) >> 1; // Includes the match.
+
+ if (next > 0) builder.add(SubString(string, 0, next));
+ var length = string.length;
+
+ while (true) {
+ var expansion = '$';
+ var position = next + 1;
+ if (position < length) {
+ var peek = %_FastCharCodeAt(string, position);
+ if (!%_IsSmi(peek)) {
+ peek = %StringCharCodeAt(string, position);
+ }
+ if (peek == 36) { // $$
+ ++position;
+ builder.add('$');
+ } else if (peek == 38) { // $& - match
+ ++position;
+ builder.addSpecialSlice(matchInfo[CAPTURE0],
+ matchInfo[CAPTURE1]);
+ } else if (peek == 96) { // $` - prefix
+ ++position;
+ builder.addSpecialSlice(0, matchInfo[CAPTURE0]);
+ } else if (peek == 39) { // $' - suffix
+ ++position;
+ builder.addSpecialSlice(matchInfo[CAPTURE1], subject.length);
+ } else if (peek >= 48 && peek <= 57) { // $n, 0 <= n <= 9
+ ++position;
+ var n = peek - 48;
+ if (position < length) {
+ peek = %_FastCharCodeAt(string, position);
+ if (!%_IsSmi(peek)) {
+ peek = %StringCharCodeAt(string, position);
+ }
+ // $nn, 01 <= nn <= 99
+ if (n != 0 && peek == 48 || peek >= 49 && peek <= 57) {
+ var nn = n * 10 + (peek - 48);
+ if (nn < m) {
+ // If the two digit capture reference is within range of
+ // the captures, we use it instead of the single digit
+ // one. Otherwise, we fall back to using the single
+ // digit reference. This matches the behavior of
+ // SpiderMonkey.
+ ++position;
+ n = nn;
+ }
+ }
+ }
+ if (0 < n && n < m) {
+ addCaptureString(builder, matchInfo, n);
+ } else {
+ // Because of the captures range check in the parsing of two
+ // digit capture references, we can only enter here when a
+ // single digit capture reference is outside the range of
+ // captures.
+ builder.add('$');
+ --position;
+ }
+ } else {
+ builder.add('$');
+ }
+ } else {
+ builder.add('$');
+ }
+
+ // Go the the next $ in the string.
+ next = %StringIndexOf(string, '$', position);
+
+ // Return if there are no more $ characters in the string. If we
+ // haven't reached the end, we need to append the suffix.
+ if (next < 0) {
+ if (position < length) {
+ builder.add(SubString(string, position, length));
+ }
+ return;
+ }
+
+ // Append substring between the previous and the next $ character.
+ builder.add(SubString(string, position, next));
+ }
+};
+
+
+// Compute the string of a given regular expression capture.
+function CaptureString(string, lastCaptureInfo, index) {
+ // Scale the index.
+ var scaled = index << 1;
+ // Compute start and end.
+ var start = lastCaptureInfo[CAPTURE(scaled)];
+ var end = lastCaptureInfo[CAPTURE(scaled + 1)];
+ // If either start or end is missing return undefined.
+ if (start < 0 || end < 0) return;
+ return SubString(string, start, end);
+};
+
+
+// Add the string of a given regular expression capture to the
+// ReplaceResultBuilder
+function addCaptureString(builder, matchInfo, index) {
+ // Scale the index.
+ var scaled = index << 1;
+ // Compute start and end.
+ var start = matchInfo[CAPTURE(scaled)];
+ var end = matchInfo[CAPTURE(scaled + 1)];
+ // If either start or end is missing return.
+ if (start < 0 || end <= start) return;
+ builder.addSpecialSlice(start, end);
+};
+
+
+// Helper function for replacing regular expressions with the result of a
+// function application in String.prototype.replace. The function application
+// must be interleaved with the regexp matching (contrary to ECMA-262
+// 15.5.4.11) to mimic SpiderMonkey and KJS behavior when the function uses
+// the static properties of the RegExp constructor. Example:
+// 'abcd'.replace(/(.)/g, function() { return RegExp.$1; }
+// should be 'abcd' and not 'dddd' (or anything else).
+function StringReplaceRegExpWithFunction(subject, regexp, replace) {
+ var result = new ReplaceResultBuilder(subject);
+ var lastMatchInfo = DoRegExpExec(regexp, subject, 0);
+ if (IS_NULL(lastMatchInfo)) return subject;
+
+ // There's at least one match. If the regexp is global, we have to loop
+ // over all matches. The loop is not in C++ code here like the one in
+ // RegExp.prototype.exec, because of the interleaved function application.
+ // Unfortunately, that means this code is nearly duplicated, here and in
+ // jsregexp.cc.
+ if (regexp.global) {
+ var previous = 0;
+ do {
+ result.addSpecialSlice(previous, lastMatchInfo[CAPTURE0]);
+ var startOfMatch = lastMatchInfo[CAPTURE0];
+ previous = lastMatchInfo[CAPTURE1];
+ result.add(ApplyReplacementFunction(replace, lastMatchInfo, subject));
+ // Can't use lastMatchInfo any more from here, since the function could
+ // overwrite it.
+ // Continue with the next match.
+ // Increment previous if we matched an empty string, as per ECMA-262
+ // 15.5.4.10.
+ if (previous == startOfMatch) {
+ // Add the skipped character to the output, if any.
+ if (previous < subject.length) {
+ result.addSpecialSlice(previous, previous + 1);
+ }
+ previous++;
+ }
+
+ // Per ECMA-262 15.10.6.2, if the previous index is greater than the
+ // string length, there is no match
+ lastMatchInfo = (previous > subject.length)
+ ? null
+ : DoRegExpExec(regexp, subject, previous);
+ } while (!IS_NULL(lastMatchInfo));
+
+ // Tack on the final right substring after the last match, if necessary.
+ if (previous < subject.length) {
+ result.addSpecialSlice(previous, subject.length);
+ }
+ } else { // Not a global regexp, no need to loop.
+ result.addSpecialSlice(0, lastMatchInfo[CAPTURE0]);
+ var endOfMatch = lastMatchInfo[CAPTURE1];
+ result.add(ApplyReplacementFunction(replace, lastMatchInfo, subject));
+ // Can't use lastMatchInfo any more from here, since the function could
+ // overwrite it.
+ result.addSpecialSlice(endOfMatch, subject.length);
+ }
+
+ return result.generate();
+}
+
+
+// Helper function to apply a string replacement function once.
+function ApplyReplacementFunction(replace, lastMatchInfo, subject) {
+ // Compute the parameter list consisting of the match, captures, index,
+ // and subject for the replace function invocation.
+ var index = lastMatchInfo[CAPTURE0];
+ // The number of captures plus one for the match.
+ var m = NUMBER_OF_CAPTURES(lastMatchInfo) >> 1;
+ if (m == 1) {
+ var s = CaptureString(subject, lastMatchInfo, 0);
+ // Don't call directly to avoid exposing the built-in global object.
+ return ToString(replace.call(null, s, index, subject));
+ }
+ var parameters = $Array(m + 2);
+ for (var j = 0; j < m; j++) {
+ parameters[j] = CaptureString(subject, lastMatchInfo, j);
+ }
+ parameters[j] = index;
+ parameters[j + 1] = subject;
+ return ToString(replace.apply(null, parameters));
+}
+
+
+// ECMA-262 section 15.5.4.12
+function StringSearch(re) {
+ var regexp = new ORIGINAL_REGEXP(re);
+ var s = ToString(this);
+ var last_idx = regexp.lastIndex; // keep old lastIndex
+ regexp.lastIndex = 0; // ignore re.global property
+ var result = regexp.exec(s);
+ regexp.lastIndex = last_idx; // restore lastIndex
+ if (result == null)
+ return -1;
+ else
+ return result.index;
+}
+
+
+// ECMA-262 section 15.5.4.13
+function StringSlice(start, end) {
+ var s = ToString(this);
+ var s_len = s.length;
+ var start_i = TO_INTEGER(start);
+ var end_i = s_len;
+ if (end !== void 0)
+ end_i = TO_INTEGER(end);
+
+ if (start_i < 0) {
+ start_i += s_len;
+ if (start_i < 0)
+ start_i = 0;
+ } else {
+ if (start_i > s_len)
+ start_i = s_len;
+ }
+
+ if (end_i < 0) {
+ end_i += s_len;
+ if (end_i < 0)
+ end_i = 0;
+ } else {
+ if (end_i > s_len)
+ end_i = s_len;
+ }
+
+ var num_c = end_i - start_i;
+ if (num_c < 0)
+ num_c = 0;
+
+ return SubString(s, start_i, start_i + num_c);
+}
+
+
+// ECMA-262 section 15.5.4.14
+function StringSplit(separator, limit) {
+ var subject = ToString(this);
+ var result = [];
+ var lim = (limit === void 0) ? 0xffffffff : ToUint32(limit);
+
+ if (lim === 0) return result;
+
+ // ECMA-262 says that if separator is undefined, the result should
+ // be an array of size 1 containing the entire string. SpiderMonkey
+ // and KJS have this behaviour only when no separator is given. If
+ // undefined is explicitly given, they convert it to a string and
+ // use that. We do as SpiderMonkey and KJS.
+ if (%_ArgumentsLength() === 0) {
+ result[result.length] = subject;
+ return result;
+ }
+
+ var length = subject.length;
+ var currentIndex = 0;
+ var startIndex = 0;
+
+ var sep;
+ if (IS_REGEXP(separator)) {
+ sep = separator;
+ %_Log('regexp', 'regexp-split,%0S,%1r', [subject, sep]);
+ } else {
+ sep = ToString(separator);
+ }
+
+ if (length === 0) {
+ if (splitMatch(sep, subject, 0, 0) != null) return result;
+ result[result.length] = subject;
+ return result;
+ }
+
+ while (true) {
+
+ if (startIndex === length) {
+ result[result.length] = subject.slice(currentIndex, length);
+ return result;
+ }
+
+ var lastMatchInfo = splitMatch(sep, subject, currentIndex, startIndex);
+
+ if (IS_NULL(lastMatchInfo)) {
+ result[result.length] = subject.slice(currentIndex, length);
+ return result;
+ }
+
+ var endIndex = lastMatchInfo[CAPTURE1];
+
+ // We ignore a zero-length match at the currentIndex.
+ if (startIndex === endIndex && endIndex === currentIndex) {
+ startIndex++;
+ continue;
+ }
+
+ result[result.length] =
+ SubString(subject, currentIndex, lastMatchInfo[CAPTURE0]);
+ if (result.length === lim) return result;
+
+ for (var i = 2; i < NUMBER_OF_CAPTURES(lastMatchInfo); i += 2) {
+ var start = lastMatchInfo[CAPTURE(i)];
+ var end = lastMatchInfo[CAPTURE(i + 1)];
+ if (start != -1 && end != -1) {
+ result[result.length] = SubString(subject,
+ lastMatchInfo[CAPTURE(i)],
+ lastMatchInfo[CAPTURE(i + 1)]);
+ } else {
+ result[result.length] = void 0;
+ }
+ if (result.length === lim) return result;
+ }
+
+ startIndex = currentIndex = endIndex;
+ }
+}
+
+
+// ECMA-262 section 15.5.4.14
+// Helper function used by split. This version returns the lastMatchInfo
+// instead of allocating a new array with basically the same information.
+function splitMatch(separator, subject, current_index, start_index) {
+ if (IS_REGEXP(separator)) {
+ var lastMatchInfo = DoRegExpExec(separator, subject, start_index);
+ if (lastMatchInfo == null) return null;
+ // Section 15.5.4.14 paragraph two says that we do not allow zero length
+ // matches at the end of the string.
+ if (lastMatchInfo[CAPTURE0] === subject.length) return null;
+ return lastMatchInfo;
+ }
+
+ var separatorIndex = subject.indexOf(separator, start_index);
+ if (separatorIndex === -1) return null;
+
+ reusableMatchInfo[CAPTURE0] = separatorIndex;
+ reusableMatchInfo[CAPTURE1] = separatorIndex + separator.length;
+ return reusableMatchInfo;
+};
+
+
+// ECMA-262 section 15.5.4.15
+function StringSubstring(start, end) {
+ var s = ToString(this);
+ var s_len = s.length;
+ var start_i = TO_INTEGER(start);
+ var end_i = s_len;
+ if (!IS_UNDEFINED(end))
+ end_i = TO_INTEGER(end);
+
+ if (start_i < 0) start_i = 0;
+ if (start_i > s_len) start_i = s_len;
+ if (end_i < 0) end_i = 0;
+ if (end_i > s_len) end_i = s_len;
+
+ if (start_i > end_i) {
+ var tmp = end_i;
+ end_i = start_i;
+ start_i = tmp;
+ }
+
+ return SubString(s, start_i, end_i);
+}
+
+
+// This is not a part of ECMA-262.
+function StringSubstr(start, n) {
+ var s = ToString(this);
+ var len;
+
+ // Correct n: If not given, set to string length; if explicitly
+ // set to undefined, zero, or negative, returns empty string.
+ if (n === void 0) {
+ len = s.length;
+ } else {
+ len = TO_INTEGER(n);
+ if (len <= 0) return '';
+ }
+
+ // Correct start: If not given (or undefined), set to zero; otherwise
+ // convert to integer and handle negative case.
+ if (start === void 0) {
+ start = 0;
+ } else {
+ start = TO_INTEGER(start);
+ // If positive, and greater than or equal to the string length,
+ // return empty string.
+ if (start >= s.length) return '';
+ // If negative and absolute value is larger than the string length,
+ // use zero.
+ if (start < 0) {
+ start += s.length;
+ if (start < 0) start = 0;
+ }
+ }
+
+ var end = start + len;
+ if (end > s.length) end = s.length;
+
+ return SubString(s, start, end);
+}
+
+
+// ECMA-262, 15.5.4.16
+function StringToLowerCase() {
+ return %StringToLowerCase(ToString(this));
+}
+
+
+// ECMA-262, 15.5.4.17
+function StringToLocaleLowerCase() {
+ return %StringToLowerCase(ToString(this));
+}
+
+
+// ECMA-262, 15.5.4.18
+function StringToUpperCase() {
+ return %StringToUpperCase(ToString(this));
+}
+
+
+// ECMA-262, 15.5.4.19
+function StringToLocaleUpperCase() {
+ return %StringToUpperCase(ToString(this));
+}
+
+
+// ECMA-262, section 15.5.3.2
+function StringFromCharCode(code) {
+ var n = %_ArgumentsLength();
+ if (n == 1) return %CharFromCode(ToNumber(code) & 0xffff)
+
+ // NOTE: This is not super-efficient, but it is necessary because we
+ // want to avoid converting to numbers from within the virtual
+ // machine. Maybe we can find another way of doing this?
+ var codes = new $Array(n);
+ for (var i = 0; i < n; i++) codes[i] = ToNumber(%_Arguments(i));
+ return %StringFromCharCodeArray(codes);
+}
+
+
+// Helper function for very basic XSS protection.
+function HtmlEscape(str) {
+ return ToString(str).replace(/</g, "&lt;")
+ .replace(/>/g, "&gt;")
+ .replace(/"/g, "&quot;")
+ .replace(/'/g, "&#039;");
+};
+
+
+// Compatibility support for KJS.
+// Tested by mozilla/js/tests/js1_5/Regress/regress-276103.js.
+function StringLink(s) {
+ return "<a href=\"" + HtmlEscape(s) + "\">" + this + "</a>";
+}
+
+
+function StringAnchor(name) {
+ return "<a name=\"" + HtmlEscape(name) + "\">" + this + "</a>";
+}
+
+
+function StringFontcolor(color) {
+ return "<font color=\"" + HtmlEscape(color) + "\">" + this + "</font>";
+}
+
+
+function StringFontsize(size) {
+ return "<font size=\"" + HtmlEscape(size) + "\">" + this + "</font>";
+}
+
+
+function StringBig() {
+ return "<big>" + this + "</big>";
+}
+
+
+function StringBlink() {
+ return "<blink>" + this + "</blink>";
+}
+
+
+function StringBold() {
+ return "<b>" + this + "</b>";
+}
+
+
+function StringFixed() {
+ return "<tt>" + this + "</tt>";
+}
+
+
+function StringItalics() {
+ return "<i>" + this + "</i>";
+}
+
+
+function StringSmall() {
+ return "<small>" + this + "</small>";
+}
+
+
+function StringStrike() {
+ return "<strike>" + this + "</strike>";
+}
+
+
+function StringSub() {
+ return "<sub>" + this + "</sub>";
+}
+
+
+function StringSup() {
+ return "<sup>" + this + "</sup>";
+}
+
+
+// StringBuilder support.
+
+function StringBuilder() {
+ this.elements = new $Array();
+}
+
+
+function ReplaceResultBuilder(str) {
+ this.elements = new $Array();
+ this.special_string = str;
+}
+
+
+ReplaceResultBuilder.prototype.add =
+StringBuilder.prototype.add = function(str) {
+ if (!IS_STRING(str)) str = ToString(str);
+ if (str.length > 0) {
+ var elements = this.elements;
+ elements[elements.length] = str;
+ }
+}
+
+
+ReplaceResultBuilder.prototype.addSpecialSlice = function(start, end) {
+ var len = end - start;
+ if (len == 0) return;
+ var elements = this.elements;
+ if (start >= 0 && len >= 0 && start < 0x80000 && len < 0x800) {
+ elements[elements.length] = (start << 11) + len;
+ } else {
+ elements[elements.length] = SubString(this.special_string, start, end);
+ }
+}
+
+
+StringBuilder.prototype.generate = function() {
+ return %StringBuilderConcat(this.elements, "");
+}
+
+
+ReplaceResultBuilder.prototype.generate = function() {
+ return %StringBuilderConcat(this.elements, this.special_string);
+}
+
+
+// -------------------------------------------------------------------
+
+function SetupString() {
+ // Setup the constructor property on the String prototype object.
+ %SetProperty($String.prototype, "constructor", $String, DONT_ENUM);
+
+
+ // Setup the non-enumerable functions on the String object.
+ InstallFunctions($String, DONT_ENUM, $Array(
+ "fromCharCode", StringFromCharCode
+ ));
+
+
+ // Setup the non-enumerable functions on the String prototype object.
+ InstallFunctions($String.prototype, DONT_ENUM, $Array(
+ "valueOf", StringValueOf,
+ "toString", StringToString,
+ "charAt", StringCharAt,
+ "charCodeAt", StringCharCodeAt,
+ "concat", StringConcat,
+ "indexOf", StringIndexOf,
+ "lastIndexOf", StringLastIndexOf,
+ "localeCompare", StringLocaleCompare,
+ "match", StringMatch,
+ "replace", StringReplace,
+ "search", StringSearch,
+ "slice", StringSlice,
+ "split", StringSplit,
+ "substring", StringSubstring,
+ "substr", StringSubstr,
+ "toLowerCase", StringToLowerCase,
+ "toLocaleLowerCase", StringToLocaleLowerCase,
+ "toUpperCase", StringToUpperCase,
+ "toLocaleUpperCase", StringToLocaleUpperCase,
+ "link", StringLink,
+ "anchor", StringAnchor,
+ "fontcolor", StringFontcolor,
+ "fontsize", StringFontsize,
+ "big", StringBig,
+ "blink", StringBlink,
+ "bold", StringBold,
+ "fixed", StringFixed,
+ "italics", StringItalics,
+ "small", StringSmall,
+ "strike", StringStrike,
+ "sub", StringSub,
+ "sup", StringSup
+ ));
+}
+
+
+SetupString();