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authorMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
committerMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
commit5f8de423f190bbb79a62f804151bc24824fa32d8 (patch)
tree10027f336435511475e392454359edea8e25895d /devtools/shared/jsbeautify/src/beautify-js.js
parent49ee0794b5d912db1f95dce6eb52d781dc210db5 (diff)
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Add m-esr52 at 52.6.0
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@@ -0,0 +1,1662 @@
+/*jshint curly:true, eqeqeq:true, laxbreak:true, noempty:false */
+
+"use strict";
+
+const acorn = require("acorn/acorn");
+
+/*
+
+ The MIT License (MIT)
+
+ Copyright (c) 2007-2013 Einar Lielmanis and contributors.
+
+ Permission is hereby granted, free of charge, to any person
+ obtaining a copy of this software and associated documentation files
+ (the "Software"), to deal in the Software without restriction,
+ including without limitation the rights to use, copy, modify, merge,
+ publish, distribute, sublicense, and/or sell copies of the Software,
+ and to permit persons to whom the Software is furnished to do so,
+ subject to the following conditions:
+
+ The above copyright notice and this permission notice shall be
+ included in all copies or substantial portions of the Software.
+
+ THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ SOFTWARE.
+
+ JS Beautifier
+---------------
+
+
+ Written by Einar Lielmanis, <einar@jsbeautifier.org>
+ http://jsbeautifier.org/
+
+ Originally converted to javascript by Vital, <vital76@gmail.com>
+ "End braces on own line" added by Chris J. Shull, <chrisjshull@gmail.com>
+ Parsing improvements for brace-less statements by Liam Newman <bitwiseman@gmail.com>
+
+
+ Usage:
+ js_beautify(js_source_text);
+ js_beautify(js_source_text, options);
+
+ The options are:
+ indent_size (default 4) - indentation size,
+ indent_char (default space) - character to indent with,
+ preserve_newlines (default true) - whether existing line breaks should be preserved,
+ max_preserve_newlines (default unlimited) - maximum number of line breaks to be preserved in one chunk,
+
+ jslint_happy (default false) - if true, then jslint-stricter mode is enforced.
+
+ jslint_happy !jslint_happy
+ ---------------------------------
+ function () function()
+
+ brace_style (default "collapse") - "collapse" | "expand" | "end-expand"
+ put braces on the same line as control statements (default), or put braces on own line (Allman / ANSI style), or just put end braces on own line.
+
+ space_before_conditional (default true) - should the space before conditional statement be added, "if(true)" vs "if (true)",
+
+ unescape_strings (default false) - should printable characters in strings encoded in \xNN notation be unescaped, "example" vs "\x65\x78\x61\x6d\x70\x6c\x65"
+
+ wrap_line_length (default unlimited) - lines should wrap at next opportunity after this number of characters.
+ NOTE: This is not a hard limit. Lines will continue until a point where a newline would
+ be preserved if it were present.
+
+ e.g
+
+ js_beautify(js_source_text, {
+ 'indent_size': 1,
+ 'indent_char': '\t'
+ });
+
+*/
+
+var js_beautify = function js_beautify(js_source_text, options) {
+ var beautifier = new Beautifier(js_source_text, options);
+ return beautifier.beautify();
+};
+
+exports.jsBeautify = js_beautify;
+
+function Beautifier(js_source_text, options) {
+ var input, output_lines;
+ var token_text, token_type, last_type, last_last_text, indent_string;
+ var flags, previous_flags, flag_store;
+ var whitespace, wordchar, punct, parser_pos, line_starters, reserved_words, digits;
+ var prefix;
+ var input_wanted_newline;
+ var output_space_before_token;
+ var input_length, n_newlines, whitespace_before_token;
+ var handlers, MODE, opt;
+ var preindent_string = '';
+
+
+
+ whitespace = "\n\r\t ".split('');
+ wordchar = 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789_$'.split('');
+ digits = '0123456789'.split('');
+
+ punct = '+ - * / % & ++ -- = += -= *= /= %= == === != !== > < >= <= >> << >>> >>>= >>= <<= && &= | || ! ~ , : ? ^ ^= |= :: =>';
+ punct += ' <%= <% %> <?= <? ?>'; // try to be a good boy and try not to break the markup language identifiers
+ punct = punct.split(' ');
+
+ // words which should always start on new line.
+ line_starters = 'continue,try,throw,return,var,let,const,if,switch,case,default,for,while,break,function,yield'.split(',');
+ reserved_words = line_starters.concat(['do', 'in', 'else', 'get', 'set', 'new', 'catch', 'finally', 'typeof']);
+
+
+ MODE = {
+ BlockStatement: 'BlockStatement', // 'BLOCK'
+ Statement: 'Statement', // 'STATEMENT'
+ ObjectLiteral: 'ObjectLiteral', // 'OBJECT',
+ ArrayLiteral: 'ArrayLiteral', //'[EXPRESSION]',
+ ForInitializer: 'ForInitializer', //'(FOR-EXPRESSION)',
+ Conditional: 'Conditional', //'(COND-EXPRESSION)',
+ Expression: 'Expression' //'(EXPRESSION)'
+ };
+
+ handlers = {
+ 'TK_START_EXPR': handle_start_expr,
+ 'TK_END_EXPR': handle_end_expr,
+ 'TK_START_BLOCK': handle_start_block,
+ 'TK_END_BLOCK': handle_end_block,
+ 'TK_WORD': handle_word,
+ 'TK_RESERVED': handle_word,
+ 'TK_SEMICOLON': handle_semicolon,
+ 'TK_STRING': handle_string,
+ 'TK_EQUALS': handle_equals,
+ 'TK_OPERATOR': handle_operator,
+ 'TK_COMMA': handle_comma,
+ 'TK_BLOCK_COMMENT': handle_block_comment,
+ 'TK_INLINE_COMMENT': handle_inline_comment,
+ 'TK_COMMENT': handle_comment,
+ 'TK_DOT': handle_dot,
+ 'TK_UNKNOWN': handle_unknown
+ };
+
+ function create_flags(flags_base, mode) {
+ var next_indent_level = 0;
+ if (flags_base) {
+ next_indent_level = flags_base.indentation_level;
+ if (!just_added_newline() &&
+ flags_base.line_indent_level > next_indent_level) {
+ next_indent_level = flags_base.line_indent_level;
+ }
+ }
+
+ var next_flags = {
+ mode: mode,
+ parent: flags_base,
+ last_text: flags_base ? flags_base.last_text : '', // last token text
+ last_word: flags_base ? flags_base.last_word : '', // last 'TK_WORD' passed
+ declaration_statement: false,
+ declaration_assignment: false,
+ in_html_comment: false,
+ multiline_frame: false,
+ if_block: false,
+ else_block: false,
+ do_block: false,
+ do_while: false,
+ in_case_statement: false, // switch(..){ INSIDE HERE }
+ in_case: false, // we're on the exact line with "case 0:"
+ case_body: false, // the indented case-action block
+ indentation_level: next_indent_level,
+ line_indent_level: flags_base ? flags_base.line_indent_level : next_indent_level,
+ start_line_index: output_lines.length,
+ had_comment: false,
+ ternary_depth: 0
+ };
+ return next_flags;
+ }
+
+ // Using object instead of string to allow for later expansion of info about each line
+
+ function create_output_line() {
+ return {
+ text: []
+ };
+ }
+
+ // Some interpreters have unexpected results with foo = baz || bar;
+ options = options ? options : {};
+ opt = {};
+
+ // compatibility
+ if (options.space_after_anon_function !== undefined && options.jslint_happy === undefined) {
+ options.jslint_happy = options.space_after_anon_function;
+ }
+ if (options.braces_on_own_line !== undefined) { //graceful handling of deprecated option
+ opt.brace_style = options.braces_on_own_line ? "expand" : "collapse";
+ }
+ opt.brace_style = options.brace_style ? options.brace_style : (opt.brace_style ? opt.brace_style : "collapse");
+
+ // graceful handling of deprecated option
+ if (opt.brace_style === "expand-strict") {
+ opt.brace_style = "expand";
+ }
+
+
+ opt.indent_size = options.indent_size ? parseInt(options.indent_size, 10) : 4;
+ opt.indent_char = options.indent_char ? options.indent_char : ' ';
+ opt.preserve_newlines = (options.preserve_newlines === undefined) ? true : options.preserve_newlines;
+ opt.break_chained_methods = (options.break_chained_methods === undefined) ? false : options.break_chained_methods;
+ opt.max_preserve_newlines = (options.max_preserve_newlines === undefined) ? 0 : parseInt(options.max_preserve_newlines, 10);
+ opt.space_in_paren = (options.space_in_paren === undefined) ? false : options.space_in_paren;
+ opt.space_in_empty_paren = (options.space_in_empty_paren === undefined) ? false : options.space_in_empty_paren;
+ opt.jslint_happy = (options.jslint_happy === undefined) ? false : options.jslint_happy;
+ opt.keep_array_indentation = (options.keep_array_indentation === undefined) ? false : options.keep_array_indentation;
+ opt.space_before_conditional = (options.space_before_conditional === undefined) ? true : options.space_before_conditional;
+ opt.unescape_strings = (options.unescape_strings === undefined) ? false : options.unescape_strings;
+ opt.wrap_line_length = (options.wrap_line_length === undefined) ? 0 : parseInt(options.wrap_line_length, 10);
+ opt.e4x = (options.e4x === undefined) ? false : options.e4x;
+
+ if(options.indent_with_tabs){
+ opt.indent_char = '\t';
+ opt.indent_size = 1;
+ }
+
+ //----------------------------------
+ indent_string = '';
+ while (opt.indent_size > 0) {
+ indent_string += opt.indent_char;
+ opt.indent_size -= 1;
+ }
+
+ while (js_source_text && (js_source_text.charAt(0) === ' ' || js_source_text.charAt(0) === '\t')) {
+ preindent_string += js_source_text.charAt(0);
+ js_source_text = js_source_text.substring(1);
+ }
+ input = js_source_text;
+ // cache the source's length.
+ input_length = js_source_text.length;
+
+ last_type = 'TK_START_BLOCK'; // last token type
+ last_last_text = ''; // pre-last token text
+ output_lines = [create_output_line()];
+ output_space_before_token = false;
+ whitespace_before_token = [];
+
+ // Stack of parsing/formatting states, including MODE.
+ // We tokenize, parse, and output in an almost purely a forward-only stream of token input
+ // and formatted output. This makes the beautifier less accurate than full parsers
+ // but also far more tolerant of syntax errors.
+ //
+ // For example, the default mode is MODE.BlockStatement. If we see a '{' we push a new frame of type
+ // MODE.BlockStatement on the the stack, even though it could be object literal. If we later
+ // encounter a ":", we'll switch to to MODE.ObjectLiteral. If we then see a ";",
+ // most full parsers would die, but the beautifier gracefully falls back to
+ // MODE.BlockStatement and continues on.
+ flag_store = [];
+ set_mode(MODE.BlockStatement);
+
+ parser_pos = 0;
+
+ this.beautify = function() {
+ /*jshint onevar:true */
+ var t, i, keep_whitespace, sweet_code;
+
+ while (true) {
+ t = get_next_token();
+ token_text = t[0];
+ token_type = t[1];
+
+ if (token_type === 'TK_EOF') {
+ // Unwind any open statements
+ while (flags.mode === MODE.Statement) {
+ restore_mode();
+ }
+ break;
+ }
+
+ keep_whitespace = opt.keep_array_indentation && is_array(flags.mode);
+ input_wanted_newline = n_newlines > 0;
+
+ if (keep_whitespace) {
+ for (i = 0; i < n_newlines; i += 1) {
+ print_newline(i > 0);
+ }
+ } else {
+ if (opt.max_preserve_newlines && n_newlines > opt.max_preserve_newlines) {
+ n_newlines = opt.max_preserve_newlines;
+ }
+
+ if (opt.preserve_newlines) {
+ if (n_newlines > 1) {
+ print_newline();
+ for (i = 1; i < n_newlines; i += 1) {
+ print_newline(true);
+ }
+ }
+ }
+ }
+
+ handlers[token_type]();
+
+ // The cleanest handling of inline comments is to treat them as though they aren't there.
+ // Just continue formatting and the behavior should be logical.
+ // Also ignore unknown tokens. Again, this should result in better behavior.
+ if (token_type !== 'TK_INLINE_COMMENT' && token_type !== 'TK_COMMENT' &&
+ token_type !== 'TK_BLOCK_COMMENT' && token_type !== 'TK_UNKNOWN') {
+ last_last_text = flags.last_text;
+ last_type = token_type;
+ flags.last_text = token_text;
+ }
+ flags.had_comment = (token_type === 'TK_INLINE_COMMENT' || token_type === 'TK_COMMENT'
+ || token_type === 'TK_BLOCK_COMMENT');
+ }
+
+
+ sweet_code = output_lines[0].text.join('');
+ for (var line_index = 1; line_index < output_lines.length; line_index++) {
+ sweet_code += '\n' + output_lines[line_index].text.join('');
+ }
+ sweet_code = sweet_code.replace(/[\r\n ]+$/, '');
+ return sweet_code;
+ };
+
+ function trim_output(eat_newlines) {
+ eat_newlines = (eat_newlines === undefined) ? false : eat_newlines;
+
+ if (output_lines.length) {
+ trim_output_line(output_lines[output_lines.length - 1], eat_newlines);
+
+ while (eat_newlines && output_lines.length > 1 &&
+ output_lines[output_lines.length - 1].text.length === 0) {
+ output_lines.pop();
+ trim_output_line(output_lines[output_lines.length - 1], eat_newlines);
+ }
+ }
+ }
+
+ function trim_output_line(line) {
+ while (line.text.length &&
+ (line.text[line.text.length - 1] === ' ' ||
+ line.text[line.text.length - 1] === indent_string ||
+ line.text[line.text.length - 1] === preindent_string)) {
+ line.text.pop();
+ }
+ }
+
+ function trim(s) {
+ return s.replace(/^\s+|\s+$/g, '');
+ }
+
+ // we could use just string.split, but
+ // IE doesn't like returning empty strings
+
+ function split_newlines(s) {
+ //return s.split(/\x0d\x0a|\x0a/);
+
+ s = s.replace(/\x0d/g, '');
+ var out = [],
+ idx = s.indexOf("\n");
+ while (idx !== -1) {
+ out.push(s.substring(0, idx));
+ s = s.substring(idx + 1);
+ idx = s.indexOf("\n");
+ }
+ if (s.length) {
+ out.push(s);
+ }
+ return out;
+ }
+
+ function just_added_newline() {
+ var line = output_lines[output_lines.length - 1];
+ return line.text.length === 0;
+ }
+
+ function just_added_blankline() {
+ if (just_added_newline()) {
+ if (output_lines.length === 1) {
+ return true; // start of the file and newline = blank
+ }
+
+ var line = output_lines[output_lines.length - 2];
+ return line.text.length === 0;
+ }
+ return false;
+ }
+
+ function allow_wrap_or_preserved_newline(force_linewrap) {
+ force_linewrap = (force_linewrap === undefined) ? false : force_linewrap;
+ if (opt.wrap_line_length && !force_linewrap) {
+ var line = output_lines[output_lines.length - 1];
+ var proposed_line_length = 0;
+ // never wrap the first token of a line.
+ if (line.text.length > 0) {
+ proposed_line_length = line.text.join('').length + token_text.length +
+ (output_space_before_token ? 1 : 0);
+ if (proposed_line_length >= opt.wrap_line_length) {
+ force_linewrap = true;
+ }
+ }
+ }
+ if (((opt.preserve_newlines && input_wanted_newline) || force_linewrap) && !just_added_newline()) {
+ print_newline(false, true);
+
+ }
+ }
+
+ function print_newline(force_newline, preserve_statement_flags) {
+ output_space_before_token = false;
+
+ if (!preserve_statement_flags) {
+ if (flags.last_text !== ';' && flags.last_text !== ',' && flags.last_text !== '=' && last_type !== 'TK_OPERATOR') {
+ while (flags.mode === MODE.Statement && !flags.if_block && !flags.do_block) {
+ restore_mode();
+ }
+ }
+ }
+
+ if (output_lines.length === 1 && just_added_newline()) {
+ return; // no newline on start of file
+ }
+
+ if (force_newline || !just_added_newline()) {
+ flags.multiline_frame = true;
+ output_lines.push(create_output_line());
+ }
+ }
+
+ function print_token_line_indentation() {
+ if (just_added_newline()) {
+ var line = output_lines[output_lines.length - 1];
+ if (opt.keep_array_indentation && is_array(flags.mode) && input_wanted_newline) {
+ // prevent removing of this whitespace as redundant
+ line.text.push('');
+ for (var i = 0; i < whitespace_before_token.length; i += 1) {
+ line.text.push(whitespace_before_token[i]);
+ }
+ } else {
+ if (preindent_string) {
+ line.text.push(preindent_string);
+ }
+
+ print_indent_string(flags.indentation_level);
+ }
+ }
+ }
+
+ function print_indent_string(level) {
+ // Never indent your first output indent at the start of the file
+ if (output_lines.length > 1) {
+ var line = output_lines[output_lines.length - 1];
+
+ flags.line_indent_level = level;
+ for (var i = 0; i < level; i += 1) {
+ line.text.push(indent_string);
+ }
+ }
+ }
+
+ function print_token_space_before() {
+ var line = output_lines[output_lines.length - 1];
+ if (output_space_before_token && line.text.length) {
+ var last_output = line.text[line.text.length - 1];
+ if (last_output !== ' ' && last_output !== indent_string) { // prevent occassional duplicate space
+ line.text.push(' ');
+ }
+ }
+ }
+
+ function print_token(printable_token) {
+ printable_token = printable_token || token_text;
+ print_token_line_indentation();
+ print_token_space_before();
+ output_space_before_token = false;
+ output_lines[output_lines.length - 1].text.push(printable_token);
+ }
+
+ function indent() {
+ flags.indentation_level += 1;
+ }
+
+ function deindent() {
+ if (flags.indentation_level > 0 &&
+ ((!flags.parent) || flags.indentation_level > flags.parent.indentation_level))
+ flags.indentation_level -= 1;
+ }
+
+ function remove_redundant_indentation(frame) {
+ // This implementation is effective but has some issues:
+ // - less than great performance due to array splicing
+ // - can cause line wrap to happen too soon due to indent removal
+ // after wrap points are calculated
+ // These issues are minor compared to ugly indentation.
+
+ if (frame.multiline_frame) return;
+
+ // remove one indent from each line inside this section
+ var index = frame.start_line_index;
+ var splice_index = 0;
+ var line;
+
+ while (index < output_lines.length) {
+ line = output_lines[index];
+ index++;
+
+ // skip empty lines
+ if (line.text.length === 0) {
+ continue;
+ }
+
+ // skip the preindent string if present
+ if (preindent_string && line.text[0] === preindent_string) {
+ splice_index = 1;
+ } else {
+ splice_index = 0;
+ }
+
+ // remove one indent, if present
+ if (line.text[splice_index] === indent_string) {
+ line.text.splice(splice_index, 1);
+ }
+ }
+ }
+
+ function set_mode(mode) {
+ if (flags) {
+ flag_store.push(flags);
+ previous_flags = flags;
+ } else {
+ previous_flags = create_flags(null, mode);
+ }
+
+ flags = create_flags(previous_flags, mode);
+ }
+
+ function is_array(mode) {
+ return mode === MODE.ArrayLiteral;
+ }
+
+ function is_expression(mode) {
+ return in_array(mode, [MODE.Expression, MODE.ForInitializer, MODE.Conditional]);
+ }
+
+ function restore_mode() {
+ if (flag_store.length > 0) {
+ previous_flags = flags;
+ flags = flag_store.pop();
+ if (previous_flags.mode === MODE.Statement) {
+ remove_redundant_indentation(previous_flags);
+ }
+ }
+ }
+
+ function start_of_object_property() {
+ return flags.parent.mode === MODE.ObjectLiteral && flags.mode === MODE.Statement && flags.last_text === ':' &&
+ flags.ternary_depth === 0;
+ }
+
+ function start_of_statement() {
+ if (
+ (last_type === 'TK_RESERVED' && in_array(flags.last_text, ['var', 'let', 'const']) && token_type === 'TK_WORD') ||
+ (last_type === 'TK_RESERVED' && flags.last_text === 'do') ||
+ (last_type === 'TK_RESERVED' && flags.last_text === 'return' && !input_wanted_newline) ||
+ (last_type === 'TK_RESERVED' && flags.last_text === 'else' && !(token_type === 'TK_RESERVED' && token_text === 'if')) ||
+ (last_type === 'TK_END_EXPR' && (previous_flags.mode === MODE.ForInitializer || previous_flags.mode === MODE.Conditional)) ||
+ (last_type === 'TK_WORD' && flags.mode === MODE.BlockStatement
+ && !flags.in_case
+ && !(token_text === '--' || token_text === '++')
+ && token_type !== 'TK_WORD' && token_type !== 'TK_RESERVED') ||
+ (flags.mode === MODE.ObjectLiteral && flags.last_text === ':' && flags.ternary_depth === 0)
+
+ ) {
+
+ set_mode(MODE.Statement);
+ indent();
+
+ if (last_type === 'TK_RESERVED' && in_array(flags.last_text, ['var', 'let', 'const']) && token_type === 'TK_WORD') {
+ flags.declaration_statement = true;
+ }
+
+ // Issue #276:
+ // If starting a new statement with [if, for, while, do], push to a new line.
+ // if (a) if (b) if(c) d(); else e(); else f();
+ if (!start_of_object_property()) {
+ allow_wrap_or_preserved_newline(
+ token_type === 'TK_RESERVED' && in_array(token_text, ['do', 'for', 'if', 'while']));
+ }
+
+ return true;
+ }
+ return false;
+ }
+
+ function all_lines_start_with(lines, c) {
+ for (var i = 0; i < lines.length; i++) {
+ var line = trim(lines[i]);
+ if (line.charAt(0) !== c) {
+ return false;
+ }
+ }
+ return true;
+ }
+
+ function each_line_matches_indent(lines, indent) {
+ var i = 0,
+ len = lines.length,
+ line;
+ for (; i < len; i++) {
+ line = lines[i];
+ // allow empty lines to pass through
+ if (line && line.indexOf(indent) !== 0) {
+ return false;
+ }
+ }
+ return true;
+ }
+
+ function is_special_word(word) {
+ return in_array(word, ['case', 'return', 'do', 'if', 'throw', 'else']);
+ }
+
+ function in_array(what, arr) {
+ for (var i = 0; i < arr.length; i += 1) {
+ if (arr[i] === what) {
+ return true;
+ }
+ }
+ return false;
+ }
+
+ function unescape_string(s) {
+ var esc = false,
+ out = '',
+ pos = 0,
+ s_hex = '',
+ escaped = 0,
+ c;
+
+ while (esc || pos < s.length) {
+
+ c = s.charAt(pos);
+ pos++;
+
+ if (esc) {
+ esc = false;
+ if (c === 'x') {
+ // simple hex-escape \x24
+ s_hex = s.substr(pos, 2);
+ pos += 2;
+ } else if (c === 'u') {
+ // unicode-escape, \u2134
+ s_hex = s.substr(pos, 4);
+ pos += 4;
+ } else {
+ // some common escape, e.g \n
+ out += '\\' + c;
+ continue;
+ }
+ if (!s_hex.match(/^[0123456789abcdefABCDEF]+$/)) {
+ // some weird escaping, bail out,
+ // leaving whole string intact
+ return s;
+ }
+
+ escaped = parseInt(s_hex, 16);
+
+ if (escaped >= 0x00 && escaped < 0x20) {
+ // leave 0x00...0x1f escaped
+ if (c === 'x') {
+ out += '\\x' + s_hex;
+ } else {
+ out += '\\u' + s_hex;
+ }
+ continue;
+ } else if (escaped === 0x22 || escaped === 0x27 || escaped === 0x5c) {
+ // single-quote, apostrophe, backslash - escape these
+ out += '\\' + String.fromCharCode(escaped);
+ } else if (c === 'x' && escaped > 0x7e && escaped <= 0xff) {
+ // we bail out on \x7f..\xff,
+ // leaving whole string escaped,
+ // as it's probably completely binary
+ return s;
+ } else {
+ out += String.fromCharCode(escaped);
+ }
+ } else if (c === '\\') {
+ esc = true;
+ } else {
+ out += c;
+ }
+ }
+ return out;
+ }
+
+ function is_next(find) {
+ var local_pos = parser_pos;
+ var c = input.charAt(local_pos);
+ while (in_array(c, whitespace) && c !== find) {
+ local_pos++;
+ if (local_pos >= input_length) {
+ return false;
+ }
+ c = input.charAt(local_pos);
+ }
+ return c === find;
+ }
+
+ function get_next_token() {
+ var i, resulting_string;
+
+ n_newlines = 0;
+
+ if (parser_pos >= input_length) {
+ return ['', 'TK_EOF'];
+ }
+
+ input_wanted_newline = false;
+ whitespace_before_token = [];
+
+ var c = input.charAt(parser_pos);
+ parser_pos += 1;
+
+ while (in_array(c, whitespace)) {
+
+ if (c === '\n') {
+ n_newlines += 1;
+ whitespace_before_token = [];
+ } else if (n_newlines) {
+ if (c === indent_string) {
+ whitespace_before_token.push(indent_string);
+ } else if (c !== '\r') {
+ whitespace_before_token.push(' ');
+ }
+ }
+
+ if (parser_pos >= input_length) {
+ return ['', 'TK_EOF'];
+ }
+
+ c = input.charAt(parser_pos);
+ parser_pos += 1;
+ }
+
+ // NOTE: because beautifier doesn't fully parse, it doesn't use acorn.isIdentifierStart.
+ // It just treats all identifiers and numbers and such the same.
+ if (acorn.isIdentifierChar(input.charCodeAt(parser_pos-1))) {
+ if (parser_pos < input_length) {
+ while (acorn.isIdentifierChar(input.charCodeAt(parser_pos))) {
+ c += input.charAt(parser_pos);
+ parser_pos += 1;
+ if (parser_pos === input_length) {
+ break;
+ }
+ }
+ }
+
+ // small and surprisingly unugly hack for 1E-10 representation
+ if (parser_pos !== input_length && c.match(/^[0-9]+[Ee]$/) && (input.charAt(parser_pos) === '-' || input.charAt(parser_pos) === '+')) {
+
+ var sign = input.charAt(parser_pos);
+ parser_pos += 1;
+
+ var t = get_next_token();
+ c += sign + t[0];
+ return [c, 'TK_WORD'];
+ }
+
+ if (!(last_type === 'TK_DOT' ||
+ (last_type === 'TK_RESERVED' && in_array(flags.last_text, ['set', 'get'])))
+ && in_array(c, reserved_words)) {
+ if (c === 'in') { // hack for 'in' operator
+ return [c, 'TK_OPERATOR'];
+ }
+ return [c, 'TK_RESERVED'];
+ }
+ return [c, 'TK_WORD'];
+ }
+
+ if (c === '(' || c === '[') {
+ return [c, 'TK_START_EXPR'];
+ }
+
+ if (c === ')' || c === ']') {
+ return [c, 'TK_END_EXPR'];
+ }
+
+ if (c === '{') {
+ return [c, 'TK_START_BLOCK'];
+ }
+
+ if (c === '}') {
+ return [c, 'TK_END_BLOCK'];
+ }
+
+ if (c === ';') {
+ return [c, 'TK_SEMICOLON'];
+ }
+
+ if (c === '/') {
+ var comment = '';
+ // peek for comment /* ... */
+ var inline_comment = true;
+ if (input.charAt(parser_pos) === '*') {
+ parser_pos += 1;
+ if (parser_pos < input_length) {
+ while (parser_pos < input_length && !(input.charAt(parser_pos) === '*' && input.charAt(parser_pos + 1) && input.charAt(parser_pos + 1) === '/')) {
+ c = input.charAt(parser_pos);
+ comment += c;
+ if (c === "\n" || c === "\r") {
+ inline_comment = false;
+ }
+ parser_pos += 1;
+ if (parser_pos >= input_length) {
+ break;
+ }
+ }
+ }
+ parser_pos += 2;
+ if (inline_comment && n_newlines === 0) {
+ return ['/*' + comment + '*/', 'TK_INLINE_COMMENT'];
+ } else {
+ return ['/*' + comment + '*/', 'TK_BLOCK_COMMENT'];
+ }
+ }
+ // peek for comment // ...
+ if (input.charAt(parser_pos) === '/') {
+ comment = c;
+ while (input.charAt(parser_pos) !== '\r' && input.charAt(parser_pos) !== '\n') {
+ comment += input.charAt(parser_pos);
+ parser_pos += 1;
+ if (parser_pos >= input_length) {
+ break;
+ }
+ }
+ return [comment, 'TK_COMMENT'];
+ }
+
+ }
+
+
+ if (c === '`' || c === "'" || c === '"' || // string
+ (
+ (c === '/') || // regexp
+ (opt.e4x && c === "<" && input.slice(parser_pos - 1).match(/^<([-a-zA-Z:0-9_.]+|{[^{}]*}|!\[CDATA\[[\s\S]*?\]\])\s*([-a-zA-Z:0-9_.]+=('[^']*'|"[^"]*"|{[^{}]*})\s*)*\/?\s*>/)) // xml
+ ) && ( // regex and xml can only appear in specific locations during parsing
+ (last_type === 'TK_RESERVED' && is_special_word(flags.last_text)) ||
+ (last_type === 'TK_END_EXPR' && in_array(previous_flags.mode, [MODE.Conditional, MODE.ForInitializer])) ||
+ (in_array(last_type, ['TK_COMMENT', 'TK_START_EXPR', 'TK_START_BLOCK',
+ 'TK_END_BLOCK', 'TK_OPERATOR', 'TK_EQUALS', 'TK_EOF', 'TK_SEMICOLON', 'TK_COMMA'
+ ]))
+ )) {
+
+ var sep = c,
+ esc = false,
+ has_char_escapes = false;
+
+ resulting_string = c;
+
+ if (parser_pos < input_length) {
+ if (sep === '/') {
+ //
+ // handle regexp
+ //
+ var in_char_class = false;
+ while (esc || in_char_class || input.charAt(parser_pos) !== sep) {
+ resulting_string += input.charAt(parser_pos);
+ if (!esc) {
+ esc = input.charAt(parser_pos) === '\\';
+ if (input.charAt(parser_pos) === '[') {
+ in_char_class = true;
+ } else if (input.charAt(parser_pos) === ']') {
+ in_char_class = false;
+ }
+ } else {
+ esc = false;
+ }
+ parser_pos += 1;
+ if (parser_pos >= input_length) {
+ // incomplete string/rexp when end-of-file reached.
+ // bail out with what had been received so far.
+ return [resulting_string, 'TK_STRING'];
+ }
+ }
+ } else if (opt.e4x && sep === '<') {
+ //
+ // handle e4x xml literals
+ //
+ var xmlRegExp = /<(\/?)([-a-zA-Z:0-9_.]+|{[^{}]*}|!\[CDATA\[[\s\S]*?\]\])\s*([-a-zA-Z:0-9_.]+=('[^']*'|"[^"]*"|{[^{}]*})\s*)*(\/?)\s*>/g;
+ var xmlStr = input.slice(parser_pos - 1);
+ var match = xmlRegExp.exec(xmlStr);
+ if (match && match.index === 0) {
+ var rootTag = match[2];
+ var depth = 0;
+ while (match) {
+ var isEndTag = !! match[1];
+ var tagName = match[2];
+ var isSingletonTag = ( !! match[match.length - 1]) || (tagName.slice(0, 8) === "![CDATA[");
+ if (tagName === rootTag && !isSingletonTag) {
+ if (isEndTag) {
+ --depth;
+ } else {
+ ++depth;
+ }
+ }
+ if (depth <= 0) {
+ break;
+ }
+ match = xmlRegExp.exec(xmlStr);
+ }
+ var xmlLength = match ? match.index + match[0].length : xmlStr.length;
+ parser_pos += xmlLength - 1;
+ return [xmlStr.slice(0, xmlLength), "TK_STRING"];
+ }
+ } else {
+ //
+ // handle string
+ //
+ while (esc || input.charAt(parser_pos) !== sep) {
+ resulting_string += input.charAt(parser_pos);
+ if (esc) {
+ if (input.charAt(parser_pos) === 'x' || input.charAt(parser_pos) === 'u') {
+ has_char_escapes = true;
+ }
+ esc = false;
+ } else {
+ esc = input.charAt(parser_pos) === '\\';
+ }
+ parser_pos += 1;
+ if (parser_pos >= input_length) {
+ // incomplete string/rexp when end-of-file reached.
+ // bail out with what had been received so far.
+ return [resulting_string, 'TK_STRING'];
+ }
+ }
+
+ }
+ }
+
+ parser_pos += 1;
+ resulting_string += sep;
+
+ if (has_char_escapes && opt.unescape_strings) {
+ resulting_string = unescape_string(resulting_string);
+ }
+
+ if (sep === '/') {
+ // regexps may have modifiers /regexp/MOD , so fetch those, too
+ while (parser_pos < input_length && in_array(input.charAt(parser_pos), wordchar)) {
+ resulting_string += input.charAt(parser_pos);
+ parser_pos += 1;
+ }
+ }
+ return [resulting_string, 'TK_STRING'];
+ }
+
+ if (c === '#') {
+
+
+ if (output_lines.length === 1 && output_lines[0].text.length === 0 &&
+ input.charAt(parser_pos) === '!') {
+ // shebang
+ resulting_string = c;
+ while (parser_pos < input_length && c !== '\n') {
+ c = input.charAt(parser_pos);
+ resulting_string += c;
+ parser_pos += 1;
+ }
+ return [trim(resulting_string) + '\n', 'TK_UNKNOWN'];
+ }
+
+
+
+ // Spidermonkey-specific sharp variables for circular references
+ // https://developer.mozilla.org/En/Sharp_variables_in_JavaScript
+ // http://dxr.mozilla.org/mozilla-central/source/js/src/jsscan.cpp around line 1935
+ var sharp = '#';
+ if (parser_pos < input_length && in_array(input.charAt(parser_pos), digits)) {
+ do {
+ c = input.charAt(parser_pos);
+ sharp += c;
+ parser_pos += 1;
+ } while (parser_pos < input_length && c !== '#' && c !== '=');
+ if (c === '#') {
+ //
+ } else if (input.charAt(parser_pos) === '[' && input.charAt(parser_pos + 1) === ']') {
+ sharp += '[]';
+ parser_pos += 2;
+ } else if (input.charAt(parser_pos) === '{' && input.charAt(parser_pos + 1) === '}') {
+ sharp += '{}';
+ parser_pos += 2;
+ }
+ return [sharp, 'TK_WORD'];
+ }
+ }
+
+ if (c === '<' && input.substring(parser_pos - 1, parser_pos + 3) === '<!--') {
+ parser_pos += 3;
+ c = '<!--';
+ while (input.charAt(parser_pos) !== '\n' && parser_pos < input_length) {
+ c += input.charAt(parser_pos);
+ parser_pos++;
+ }
+ flags.in_html_comment = true;
+ return [c, 'TK_COMMENT'];
+ }
+
+ if (c === '-' && flags.in_html_comment && input.substring(parser_pos - 1, parser_pos + 2) === '-->') {
+ flags.in_html_comment = false;
+ parser_pos += 2;
+ return ['-->', 'TK_COMMENT'];
+ }
+
+ if (c === '.') {
+ return [c, 'TK_DOT'];
+ }
+
+ if (in_array(c, punct)) {
+ while (parser_pos < input_length && in_array(c + input.charAt(parser_pos), punct)) {
+ c += input.charAt(parser_pos);
+ parser_pos += 1;
+ if (parser_pos >= input_length) {
+ break;
+ }
+ }
+
+ if (c === ',') {
+ return [c, 'TK_COMMA'];
+ } else if (c === '=') {
+ return [c, 'TK_EQUALS'];
+ } else {
+ return [c, 'TK_OPERATOR'];
+ }
+ }
+
+ return [c, 'TK_UNKNOWN'];
+ }
+
+ function handle_start_expr() {
+ if (start_of_statement()) {
+ // The conditional starts the statement if appropriate.
+ }
+
+ var next_mode = MODE.Expression;
+ if (token_text === '[') {
+
+ if (last_type === 'TK_WORD' || flags.last_text === ')') {
+ // this is array index specifier, break immediately
+ // a[x], fn()[x]
+ if (last_type === 'TK_RESERVED' && in_array(flags.last_text, line_starters)) {
+ output_space_before_token = true;
+ }
+ set_mode(next_mode);
+ print_token();
+ indent();
+ if (opt.space_in_paren) {
+ output_space_before_token = true;
+ }
+ return;
+ }
+
+ next_mode = MODE.ArrayLiteral;
+ if (is_array(flags.mode)) {
+ if (flags.last_text === '[' ||
+ (flags.last_text === ',' && (last_last_text === ']' || last_last_text === '}'))) {
+ // ], [ goes to new line
+ // }, [ goes to new line
+ if (!opt.keep_array_indentation) {
+ print_newline();
+ }
+ }
+ }
+
+ } else {
+ if (last_type === 'TK_RESERVED' && flags.last_text === 'for') {
+ next_mode = MODE.ForInitializer;
+ } else if (last_type === 'TK_RESERVED' && in_array(flags.last_text, ['if', 'while'])) {
+ next_mode = MODE.Conditional;
+ } else {
+ // next_mode = MODE.Expression;
+ }
+ }
+
+ if (flags.last_text === ';' || last_type === 'TK_START_BLOCK') {
+ print_newline();
+ } else if (last_type === 'TK_END_EXPR' || last_type === 'TK_START_EXPR' || last_type === 'TK_END_BLOCK' || flags.last_text === '.') {
+ // TODO: Consider whether forcing this is required. Review failing tests when removed.
+ allow_wrap_or_preserved_newline(input_wanted_newline);
+ // do nothing on (( and )( and ][ and ]( and .(
+ } else if (!(last_type === 'TK_RESERVED' && token_text === '(') && last_type !== 'TK_WORD' && last_type !== 'TK_OPERATOR') {
+ output_space_before_token = true;
+ } else if ((last_type === 'TK_RESERVED' && (flags.last_word === 'function' || flags.last_word === 'typeof')) ||
+ (flags.last_text === '*' && last_last_text === 'function')) {
+ // function() vs function ()
+ if (opt.jslint_happy) {
+ output_space_before_token = true;
+ }
+ } else if (last_type === 'TK_RESERVED' && (in_array(flags.last_text, line_starters) || flags.last_text === 'catch')) {
+ if (opt.space_before_conditional) {
+ output_space_before_token = true;
+ }
+ }
+
+ // Support of this kind of newline preservation.
+ // a = (b &&
+ // (c || d));
+ if (token_text === '(') {
+ if (last_type === 'TK_EQUALS' || last_type === 'TK_OPERATOR') {
+ if (!start_of_object_property()) {
+ allow_wrap_or_preserved_newline();
+ }
+ }
+ }
+
+ set_mode(next_mode);
+ print_token();
+ if (opt.space_in_paren) {
+ output_space_before_token = true;
+ }
+
+ // In all cases, if we newline while inside an expression it should be indented.
+ indent();
+ }
+
+ function handle_end_expr() {
+ // statements inside expressions are not valid syntax, but...
+ // statements must all be closed when their container closes
+ while (flags.mode === MODE.Statement) {
+ restore_mode();
+ }
+
+ if (flags.multiline_frame) {
+ allow_wrap_or_preserved_newline(token_text === ']' && is_array(flags.mode) && !opt.keep_array_indentation);
+ }
+
+ if (opt.space_in_paren) {
+ if (last_type === 'TK_START_EXPR' && ! opt.space_in_empty_paren) {
+ // () [] no inner space in empty parens like these, ever, ref #320
+ trim_output();
+ output_space_before_token = false;
+ } else {
+ output_space_before_token = true;
+ }
+ }
+ if (token_text === ']' && opt.keep_array_indentation) {
+ print_token();
+ restore_mode();
+ } else {
+ restore_mode();
+ print_token();
+ }
+ remove_redundant_indentation(previous_flags);
+
+ // do {} while () // no statement required after
+ if (flags.do_while && previous_flags.mode === MODE.Conditional) {
+ previous_flags.mode = MODE.Expression;
+ flags.do_block = false;
+ flags.do_while = false;
+
+ }
+ }
+
+ function handle_start_block() {
+ set_mode(MODE.BlockStatement);
+
+ var empty_braces = is_next('}');
+ var empty_anonymous_function = empty_braces && flags.last_word === 'function' &&
+ last_type === 'TK_END_EXPR';
+
+ if (opt.brace_style === "expand") {
+ if (last_type !== 'TK_OPERATOR' &&
+ (empty_anonymous_function ||
+ last_type === 'TK_EQUALS' ||
+ (last_type === 'TK_RESERVED' && is_special_word(flags.last_text) && flags.last_text !== 'else'))) {
+ output_space_before_token = true;
+ } else {
+ print_newline(false, true);
+ }
+ } else { // collapse
+ if (last_type !== 'TK_OPERATOR' && last_type !== 'TK_START_EXPR') {
+ if (last_type === 'TK_START_BLOCK') {
+ print_newline();
+ } else {
+ output_space_before_token = true;
+ }
+ } else {
+ // if TK_OPERATOR or TK_START_EXPR
+ if (is_array(previous_flags.mode) && flags.last_text === ',') {
+ if (last_last_text === '}') {
+ // }, { in array context
+ output_space_before_token = true;
+ } else {
+ print_newline(); // [a, b, c, {
+ }
+ }
+ }
+ }
+ print_token();
+ indent();
+ }
+
+ function handle_end_block() {
+ // statements must all be closed when their container closes
+ while (flags.mode === MODE.Statement) {
+ restore_mode();
+ }
+ var empty_braces = last_type === 'TK_START_BLOCK';
+
+ if (opt.brace_style === "expand") {
+ if (!empty_braces) {
+ print_newline();
+ }
+ } else {
+ // skip {}
+ if (!empty_braces) {
+ if (is_array(flags.mode) && opt.keep_array_indentation) {
+ // we REALLY need a newline here, but newliner would skip that
+ opt.keep_array_indentation = false;
+ print_newline();
+ opt.keep_array_indentation = true;
+
+ } else {
+ print_newline();
+ }
+ }
+ }
+ restore_mode();
+ print_token();
+ }
+
+ function handle_word() {
+ if (start_of_statement()) {
+ // The conditional starts the statement if appropriate.
+ } else if (input_wanted_newline && !is_expression(flags.mode) &&
+ (last_type !== 'TK_OPERATOR' || (flags.last_text === '--' || flags.last_text === '++')) &&
+ last_type !== 'TK_EQUALS' &&
+ (opt.preserve_newlines || !(last_type === 'TK_RESERVED' && in_array(flags.last_text, ['var', 'let', 'const', 'set', 'get'])))) {
+
+ print_newline();
+ }
+
+ if (flags.do_block && !flags.do_while) {
+ if (token_type === 'TK_RESERVED' && token_text === 'while') {
+ // do {} ## while ()
+ output_space_before_token = true;
+ print_token();
+ output_space_before_token = true;
+ flags.do_while = true;
+ return;
+ } else {
+ // do {} should always have while as the next word.
+ // if we don't see the expected while, recover
+ print_newline();
+ flags.do_block = false;
+ }
+ }
+
+ // if may be followed by else, or not
+ // Bare/inline ifs are tricky
+ // Need to unwind the modes correctly: if (a) if (b) c(); else d(); else e();
+ if (flags.if_block) {
+ if (!flags.else_block && (token_type === 'TK_RESERVED' && token_text === 'else')) {
+ flags.else_block = true;
+ } else {
+ while (flags.mode === MODE.Statement) {
+ restore_mode();
+ }
+ flags.if_block = false;
+ flags.else_block = false;
+ }
+ }
+
+ if (token_type === 'TK_RESERVED' && (token_text === 'case' || (token_text === 'default' && flags.in_case_statement))) {
+ print_newline();
+ if (flags.case_body || opt.jslint_happy) {
+ // switch cases following one another
+ deindent();
+ flags.case_body = false;
+ }
+ print_token();
+ flags.in_case = true;
+ flags.in_case_statement = true;
+ return;
+ }
+
+ if (token_type === 'TK_RESERVED' && token_text === 'function') {
+ if (in_array(flags.last_text, ['}', ';']) || (just_added_newline() && ! in_array(flags.last_text, ['{', ':', '=', ',']))) {
+ // make sure there is a nice clean space of at least one blank line
+ // before a new function definition
+ if ( ! just_added_blankline() && ! flags.had_comment) {
+ print_newline();
+ print_newline(true);
+ }
+ }
+ if (last_type === 'TK_RESERVED' || last_type === 'TK_WORD') {
+ if (last_type === 'TK_RESERVED' && in_array(flags.last_text, ['get', 'set', 'new', 'return'])) {
+ output_space_before_token = true;
+ } else {
+ print_newline();
+ }
+ } else if (last_type === 'TK_OPERATOR' || flags.last_text === '=') {
+ // foo = function
+ output_space_before_token = true;
+ } else if (is_expression(flags.mode)) {
+ // (function
+ } else {
+ print_newline();
+ }
+ }
+
+ if (last_type === 'TK_COMMA' || last_type === 'TK_START_EXPR' || last_type === 'TK_EQUALS' || last_type === 'TK_OPERATOR') {
+ if (!start_of_object_property()) {
+ allow_wrap_or_preserved_newline();
+ }
+ }
+
+ if (token_type === 'TK_RESERVED' && token_text === 'function') {
+ print_token();
+ flags.last_word = token_text;
+ return;
+ }
+
+ prefix = 'NONE';
+
+ if (last_type === 'TK_END_BLOCK') {
+ if (!(token_type === 'TK_RESERVED' && in_array(token_text, ['else', 'catch', 'finally']))) {
+ prefix = 'NEWLINE';
+ } else {
+ if (opt.brace_style === "expand" || opt.brace_style === "end-expand") {
+ prefix = 'NEWLINE';
+ } else {
+ prefix = 'SPACE';
+ output_space_before_token = true;
+ }
+ }
+ } else if (last_type === 'TK_SEMICOLON' && flags.mode === MODE.BlockStatement) {
+ // TODO: Should this be for STATEMENT as well?
+ prefix = 'NEWLINE';
+ } else if (last_type === 'TK_SEMICOLON' && is_expression(flags.mode)) {
+ prefix = 'SPACE';
+ } else if (last_type === 'TK_STRING') {
+ prefix = 'NEWLINE';
+ } else if (last_type === 'TK_RESERVED' || last_type === 'TK_WORD' ||
+ (flags.last_text === '*' && last_last_text === 'function')) {
+ prefix = 'SPACE';
+ } else if (last_type === 'TK_START_BLOCK') {
+ prefix = 'NEWLINE';
+ } else if (last_type === 'TK_END_EXPR') {
+ output_space_before_token = true;
+ prefix = 'NEWLINE';
+ }
+
+ if (token_type === 'TK_RESERVED' && in_array(token_text, line_starters) && flags.last_text !== ')') {
+ if (flags.last_text === 'else') {
+ prefix = 'SPACE';
+ } else {
+ prefix = 'NEWLINE';
+ }
+
+ }
+
+ if (token_type === 'TK_RESERVED' && in_array(token_text, ['else', 'catch', 'finally'])) {
+ if (last_type !== 'TK_END_BLOCK' || opt.brace_style === "expand" || opt.brace_style === "end-expand") {
+ print_newline();
+ } else {
+ trim_output(true);
+ var line = output_lines[output_lines.length - 1];
+ // If we trimmed and there's something other than a close block before us
+ // put a newline back in. Handles '} // comment' scenario.
+ if (line.text[line.text.length - 1] !== '}') {
+ print_newline();
+ }
+ output_space_before_token = true;
+ }
+ } else if (prefix === 'NEWLINE') {
+ if (last_type === 'TK_RESERVED' && is_special_word(flags.last_text)) {
+ // no newline between 'return nnn'
+ output_space_before_token = true;
+ } else if (last_type !== 'TK_END_EXPR') {
+ if ((last_type !== 'TK_START_EXPR' || !(token_type === 'TK_RESERVED' && in_array(token_text, ['var', 'let', 'const']))) && flags.last_text !== ':') {
+ // no need to force newline on 'var': for (var x = 0...)
+ if (token_type === 'TK_RESERVED' && token_text === 'if' && flags.last_word === 'else' && flags.last_text !== '{') {
+ // no newline for } else if {
+ output_space_before_token = true;
+ } else {
+ print_newline();
+ }
+ }
+ } else if (token_type === 'TK_RESERVED' && in_array(token_text, line_starters) && flags.last_text !== ')') {
+ print_newline();
+ }
+ } else if (is_array(flags.mode) && flags.last_text === ',' && last_last_text === '}') {
+ print_newline(); // }, in lists get a newline treatment
+ } else if (prefix === 'SPACE') {
+ output_space_before_token = true;
+ }
+ print_token();
+ flags.last_word = token_text;
+
+ if (token_type === 'TK_RESERVED' && token_text === 'do') {
+ flags.do_block = true;
+ }
+
+ if (token_type === 'TK_RESERVED' && token_text === 'if') {
+ flags.if_block = true;
+ }
+ }
+
+ function handle_semicolon() {
+ if (start_of_statement()) {
+ // The conditional starts the statement if appropriate.
+ // Semicolon can be the start (and end) of a statement
+ output_space_before_token = false;
+ }
+ while (flags.mode === MODE.Statement && !flags.if_block && !flags.do_block) {
+ restore_mode();
+ }
+ print_token();
+ if (flags.mode === MODE.ObjectLiteral) {
+ // if we're in OBJECT mode and see a semicolon, its invalid syntax
+ // recover back to treating this as a BLOCK
+ flags.mode = MODE.BlockStatement;
+ }
+ }
+
+ function handle_string() {
+ if (start_of_statement()) {
+ // The conditional starts the statement if appropriate.
+ // One difference - strings want at least a space before
+ output_space_before_token = true;
+ } else if (last_type === 'TK_RESERVED' || last_type === 'TK_WORD') {
+ output_space_before_token = true;
+ } else if (last_type === 'TK_COMMA' || last_type === 'TK_START_EXPR' || last_type === 'TK_EQUALS' || last_type === 'TK_OPERATOR') {
+ if (!start_of_object_property()) {
+ allow_wrap_or_preserved_newline();
+ }
+ } else {
+ print_newline();
+ }
+ print_token();
+ }
+
+ function handle_equals() {
+ if (start_of_statement()) {
+ // The conditional starts the statement if appropriate.
+ }
+
+ if (flags.declaration_statement) {
+ // just got an '=' in a var-line, different formatting/line-breaking, etc will now be done
+ flags.declaration_assignment = true;
+ }
+ output_space_before_token = true;
+ print_token();
+ output_space_before_token = true;
+ }
+
+ function handle_comma() {
+ if (flags.declaration_statement) {
+ if (is_expression(flags.parent.mode)) {
+ // do not break on comma, for(var a = 1, b = 2)
+ flags.declaration_assignment = false;
+ }
+
+ print_token();
+
+ if (flags.declaration_assignment) {
+ flags.declaration_assignment = false;
+ print_newline(false, true);
+ } else {
+ output_space_before_token = true;
+ }
+ return;
+ }
+
+ print_token();
+ if (flags.mode === MODE.ObjectLiteral ||
+ (flags.mode === MODE.Statement && flags.parent.mode === MODE.ObjectLiteral)) {
+ if (flags.mode === MODE.Statement) {
+ restore_mode();
+ }
+ print_newline();
+ } else {
+ // EXPR or DO_BLOCK
+ output_space_before_token = true;
+ }
+
+ }
+
+ function handle_operator() {
+ // Check if this is a BlockStatement that should be treated as a ObjectLiteral
+ if (token_text === ':' && flags.mode === MODE.BlockStatement &&
+ last_last_text === '{' &&
+ (last_type === 'TK_WORD' || last_type === 'TK_RESERVED')){
+ flags.mode = MODE.ObjectLiteral;
+ }
+
+ if (start_of_statement()) {
+ // The conditional starts the statement if appropriate.
+ }
+
+ var space_before = true;
+ var space_after = true;
+ if (last_type === 'TK_RESERVED' && is_special_word(flags.last_text)) {
+ // "return" had a special handling in TK_WORD. Now we need to return the favor
+ output_space_before_token = true;
+ print_token();
+ return;
+ }
+
+ // hack for actionscript's import .*;
+ if (token_text === '*' && last_type === 'TK_DOT' && !last_last_text.match(/^\d+$/)) {
+ print_token();
+ return;
+ }
+
+ if (token_text === ':' && flags.in_case) {
+ flags.case_body = true;
+ indent();
+ print_token();
+ print_newline();
+ flags.in_case = false;
+ return;
+ }
+
+ if (token_text === '::') {
+ // no spaces around exotic namespacing syntax operator
+ print_token();
+ return;
+ }
+
+ // http://www.ecma-international.org/ecma-262/5.1/#sec-7.9.1
+ // if there is a newline between -- or ++ and anything else we should preserve it.
+ if (input_wanted_newline && (token_text === '--' || token_text === '++')) {
+ print_newline();
+ }
+
+ // Allow line wrapping between operators
+ if (last_type === 'TK_OPERATOR') {
+ allow_wrap_or_preserved_newline();
+ }
+
+ if (in_array(token_text, ['--', '++', '!', '~']) || (in_array(token_text, ['-', '+']) && (in_array(last_type, ['TK_START_BLOCK', 'TK_START_EXPR', 'TK_EQUALS', 'TK_OPERATOR']) || in_array(flags.last_text, line_starters) || flags.last_text === ','))) {
+ // unary operators (and binary +/- pretending to be unary) special cases
+
+ space_before = false;
+ space_after = false;
+
+ if (flags.last_text === ';' && is_expression(flags.mode)) {
+ // for (;; ++i)
+ // ^^^
+ space_before = true;
+ }
+
+ if (last_type === 'TK_RESERVED') {
+ space_before = true;
+ }
+
+ if ((flags.mode === MODE.BlockStatement || flags.mode === MODE.Statement) && (flags.last_text === '{' || flags.last_text === ';')) {
+ // { foo; --i }
+ // foo(); --bar;
+ print_newline();
+ }
+ } else if (token_text === ':') {
+ if (flags.ternary_depth === 0) {
+ if (flags.mode === MODE.BlockStatement) {
+ flags.mode = MODE.ObjectLiteral;
+ }
+ space_before = false;
+ } else {
+ flags.ternary_depth -= 1;
+ }
+ } else if (token_text === '?') {
+ flags.ternary_depth += 1;
+ } else if (token_text === '*' && last_type === 'TK_RESERVED' && flags.last_text === 'function') {
+ space_before = false;
+ space_after = false;
+ }
+ output_space_before_token = output_space_before_token || space_before;
+ print_token();
+ output_space_before_token = space_after;
+ }
+
+ function handle_block_comment() {
+ var lines = split_newlines(token_text);
+ var j; // iterator for this case
+ var javadoc = false;
+ var starless = false;
+ var lastIndent = whitespace_before_token.join('');
+ var lastIndentLength = lastIndent.length;
+
+ // block comment starts with a new line
+ print_newline(false, true);
+ if (lines.length > 1) {
+ if (all_lines_start_with(lines.slice(1), '*')) {
+ javadoc = true;
+ }
+ else if (each_line_matches_indent(lines.slice(1), lastIndent)) {
+ starless = true;
+ }
+ }
+
+ // first line always indented
+ print_token(lines[0]);
+ for (j = 1; j < lines.length; j++) {
+ print_newline(false, true);
+ if (javadoc) {
+ // javadoc: reformat and re-indent
+ print_token(' ' + trim(lines[j]));
+ } else if (starless && lines[j].length > lastIndentLength) {
+ // starless: re-indent non-empty content, avoiding trim
+ print_token(lines[j].substring(lastIndentLength));
+ } else {
+ // normal comments output raw
+ output_lines[output_lines.length - 1].text.push(lines[j]);
+ }
+ }
+
+ // for comments of more than one line, make sure there's a new line after
+ print_newline(false, true);
+ }
+
+ function handle_inline_comment() {
+ output_space_before_token = true;
+ print_token();
+ output_space_before_token = true;
+ }
+
+ function handle_comment() {
+ if (input_wanted_newline) {
+ print_newline(false, true);
+ } else {
+ trim_output(true);
+ }
+
+ output_space_before_token = true;
+ print_token();
+ print_newline(false, true);
+ }
+
+ function handle_dot() {
+ if (start_of_statement()) {
+ // The conditional starts the statement if appropriate.
+ }
+
+ if (last_type === 'TK_RESERVED' && is_special_word(flags.last_text)) {
+ output_space_before_token = true;
+ } else {
+ // allow preserved newlines before dots in general
+ // force newlines on dots after close paren when break_chained - for bar().baz()
+ allow_wrap_or_preserved_newline(flags.last_text === ')' && opt.break_chained_methods);
+ }
+
+ print_token();
+ }
+
+ function handle_unknown() {
+ print_token();
+
+ if (token_text[token_text.length - 1] === '\n') {
+ print_newline();
+ }
+ }
+}