1179 lines
40 KiB
JavaScript
1179 lines
40 KiB
JavaScript
/*
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JS Beautifier
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---------------
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Written by Einar Lielmanis, <einar@jsbeautifier.org>
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http://jsbeautifier.org/
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Originally converted to javascript by Vital, <vital76@gmail.com>
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You are free to use this in any way you want, in case you find this useful or working for you.
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Usage:
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js_beautify(js_source_text);
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js_beautify(js_source_text, options);
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The options are:
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indent_size (default 4) — indentation size,
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indent_char (default space) — character to indent with,
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preserve_newlines (default true) — whether existing line breaks should be preserved,
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indent_level (default 0) — initial indentation level, you probably won't need this ever,
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space_after_anon_function (default false) — if true, then space is added between "function ()"
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(jslint is happy about this); if false, then the common "function()" output is used.
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braces_on_own_line (default false) - ANSI / Allman brace style, each opening/closing brace gets its own line.
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e.g
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js_beautify(js_source_text, {indent_size: 1, indent_char: '\t'});
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*/
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function js_beautify(js_source_text, options) {
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options = options ? options : {};
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var input,
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output,
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token_text,
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last_type,
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last_text,
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last_last_text,
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last_word,
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flags,
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flag_store,
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indent_string,
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whitespace,
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wordchar,
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punct,
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parser_pos,
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line_starters,
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digits,
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prefix,
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token_type,
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do_block_just_closed,
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wanted_newline,
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just_added_newline = false,
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n_newlines,
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opt_braces_on_own_line = options.braces_on_own_line ? options.braces_on_own_line : false,
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opt_indent_size = options.indent_size ? options.indent_size : 4,
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opt_indent_char = options.indent_char ? options.indent_char : ' ',
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opt_preserve_newlines = typeof options.preserve_newlines === 'undefined' ? true : options.preserve_newlines,
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opt_indent_level = options.indent_level ? options.indent_level : 0, // starting indentation
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opt_space_after_anon_function = options.space_after_anon_function === 'undefined' ? false : options.space_after_anon_function,
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opt_keep_array_indentation = typeof options.keep_array_indentation === 'undefined' ? false : options.keep_array_indentation,
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input_length = js_source_text.length,
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space_before = true,
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space_after = true,
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t,
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i,
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lines;
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function trim_output() {
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while (output.length && (output[output.length - 1] === ' ' || output[output.length - 1] === indent_string)) {
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output.pop();
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}
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}
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function is_array(mode) {
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return mode === '[EXPRESSION]' || mode === '[INDENTED-EXPRESSION]';
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}
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function print_newline(ignore_repeated) {
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flags.eat_next_space = false;
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if (opt_keep_array_indentation && is_array(flags.mode)) {
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return;
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}
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ignore_repeated = typeof ignore_repeated === 'undefined' ? true : ignore_repeated;
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flags.if_line = false;
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trim_output();
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if (!output.length) {
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return; // no newline on start of file
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}
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if (output[output.length - 1] !== "\n" || !ignore_repeated) {
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just_added_newline = true;
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output.push("\n");
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}
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for (var i = 0; i < flags.indentation_level; i += 1) {
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output.push(indent_string);
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}
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if (flags.var_line && flags.var_line_reindented) {
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if (opt_indent_char === ' ') {
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output.push(' '); // var_line always pushes 4 spaces, so that the variables would be one under another
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}
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else {
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output.push(indent_string); // skip space-stuffing, if indenting with a tab
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}
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}
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}
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function print_single_space() {
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var last_output = ' ';
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if (flags.eat_next_space) {
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flags.eat_next_space = false;
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return;
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}
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if (output.length) {
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last_output = output[output.length - 1];
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}
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if (last_output !== ' ' && last_output !== '\n' && last_output !== indent_string) { // prevent occassional duplicate space
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output.push(' ');
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}
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}
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function print_token() {
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just_added_newline = false;
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flags.eat_next_space = false;
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output.push(token_text);
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}
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function indent() {
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flags.indentation_level += 1;
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}
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function remove_indent() {
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if (output.length && output[output.length - 1] === indent_string) {
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output.pop();
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}
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}
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function set_mode(mode) {
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if (flags) {
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flag_store.push(flags);
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}
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flags = {
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previous_mode: flags ? flags.mode : 'BLOCK',
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mode: mode,
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var_line: false,
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var_line_tainted: false,
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var_line_reindented: false,
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in_html_comment: false,
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if_line: false,
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in_case: false,
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eat_next_space: false,
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indentation_baseline: -1,
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indentation_level: (flags ? flags.indentation_level + ((flags.var_line && flags.var_line_reindented) ? 1 : 0) : opt_indent_level)
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};
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}
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function is_expression(mode) {
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return mode === '[EXPRESSION]' || mode === '[INDENTED-EXPRESSION]' || mode === '(EXPRESSION)';
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}
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function restore_mode() {
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do_block_just_closed = flags.mode === 'DO_BLOCK';
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if (flag_store.length > 0) {
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flags = flag_store.pop();
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}
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}
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function in_array(what, arr) {
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for (var i = 0; i < arr.length; i += 1) {
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if (arr[i] === what) {
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return true;
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}
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}
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return false;
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}
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// Walk backwards from the colon to find a '?' (colon is part of a ternary op)
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// or a '{' (colon is part of a class literal). Along the way, keep track of
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// the blocks and expressions we pass so we only trigger on those chars in our
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// own level, and keep track of the colons so we only trigger on the matching '?'.
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function is_ternary_op() {
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var level = 0,
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colon_count = 0,
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i;
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for (i = output.length - 1; i >= 0; i -= 1) {
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switch (output[i]) {
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case ':':
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if (level === 0) {
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colon_count += 1;
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}
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break;
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case '?':
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if (level === 0) {
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if (colon_count === 0) {
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return true;
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} else {
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colon_count -= 1;
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}
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}
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break;
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case '{':
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if (level === 0) {
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return false;
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}
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level -= 1;
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break;
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case '(':
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case '[':
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level -= 1;
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break;
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case ')':
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case ']':
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case '}':
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level += 1;
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break;
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}
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}
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}
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function get_next_token() {
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var c,
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keep_whitespace = opt_keep_array_indentation && is_array(flags.mode),
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whitespace_count = 0,
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i,
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sign,
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t,
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comment,
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inline_comment,
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sep,
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esc,
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resulting_string,
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in_char_class,
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sharp;
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n_newlines = 0;
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if (parser_pos >= input_length) {
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return ['', 'TK_EOF'];
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}
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wanted_newline = false;
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c = input.charAt(parser_pos);
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parser_pos += 1;
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if (keep_whitespace) {
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//
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// slight mess to allow nice preservation of array indentation and reindent that correctly
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// first time when we get to the arrays:
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// var a = [
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// ....'something'
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// we make note of whitespace_count = 4 into flags.indentation_baseline
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// so we know that 4 whitespaces in original source match indent_level of reindented source
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//
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// and afterwards, when we get to
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// 'something,
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// .......'something else'
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// we know that this should be indented to indent_level + (7 - indentation_baseline) spaces
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//
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while (in_array(c, whitespace)) {
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if (c === "\n") {
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trim_output();
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output.push("\n");
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just_added_newline = true;
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whitespace_count = 0;
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}
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else {
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if (c === '\t') {
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whitespace_count += 4;
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}
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else {
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whitespace_count += 1;
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}
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}
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if (parser_pos >= input_length) {
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return ['', 'TK_EOF'];
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}
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c = input.charAt(parser_pos);
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parser_pos += 1;
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}
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if (flags.indentation_baseline === -1) {
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flags.indentation_baseline = whitespace_count;
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}
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if (just_added_newline) {
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for (i = 0; i < flags.indentation_level + 1; i += 1) {
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output.push(indent_string);
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}
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if (flags.indentation_baseline !== -1) {
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for (i = 0; i < whitespace_count - flags.indentation_baseline; i += 1) {
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output.push(' ');
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}
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}
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}
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}
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else {
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while (in_array(c, whitespace)) {
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if (c === "\n") {
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n_newlines += 1;
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}
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if (parser_pos >= input_length) {
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return ['', 'TK_EOF'];
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}
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c = input.charAt(parser_pos);
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parser_pos += 1;
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}
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if (opt_preserve_newlines) {
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if (n_newlines > 1) {
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for (i = 0; i < n_newlines; i += 1) {
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print_newline(i === 0);
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just_added_newline = true;
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}
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}
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}
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wanted_newline = n_newlines > 0;
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}
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if (in_array(c, wordchar)) {
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if (parser_pos < input_length) {
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while (in_array(input.charAt(parser_pos), wordchar)) {
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c += input.charAt(parser_pos);
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parser_pos += 1;
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if (parser_pos === input_length) {
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break;
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}
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}
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}
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// small and surprisingly unugly hack for 1E-10 representation
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if (parser_pos !== input_length && c.match(/^[0-9]+[Ee]$/) && (input.charAt(parser_pos) === '-' || input.charAt(parser_pos) === '+')) {
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sign = input.charAt(parser_pos);
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parser_pos += 1;
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t = get_next_token(parser_pos);
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c += sign + t[0];
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return [c, 'TK_WORD'];
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}
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if (c === 'in') { // hack for 'in' operator
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return [c, 'TK_OPERATOR'];
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}
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if (wanted_newline && last_type !== 'TK_OPERATOR' && !flags.if_line && (opt_preserve_newlines || last_text !== 'var')) {
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print_newline();
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}
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return [c, 'TK_WORD'];
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}
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if (c === '(' || c === '[') {
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return [c, 'TK_START_EXPR'];
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}
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if (c === ')' || c === ']') {
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return [c, 'TK_END_EXPR'];
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}
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if (c === '{') {
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return [c, 'TK_START_BLOCK'];
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}
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if (c === '}') {
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return [c, 'TK_END_BLOCK'];
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}
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if (c === ';') {
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return [c, 'TK_SEMICOLON'];
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}
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if (c === '/') {
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// peek for comment /* ... */
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inline_comment = true;
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comment = '';
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if (input.charAt(parser_pos) === '*') {
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parser_pos += 1;
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if (parser_pos < input_length) {
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while (!(input.charAt(parser_pos) === '*' && input.charAt(parser_pos + 1) && input.charAt(parser_pos + 1) === '/') && parser_pos < input_length) {
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c = input.charAt(parser_pos);
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comment += c;
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if (c === '\x0d' || c === '\x0a') {
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inline_comment = false;
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}
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parser_pos += 1;
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if (parser_pos >= input_length) {
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break;
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}
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}
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}
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parser_pos += 2;
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if (inline_comment) {
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return ['/*' + comment + '*/', 'TK_INLINE_COMMENT'];
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}
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else {
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return ['/*' + comment + '*/', 'TK_BLOCK_COMMENT'];
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}
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}
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// peek for comment // ...
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if (input.charAt(parser_pos) === '/') {
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comment = c;
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while (input.charAt(parser_pos) !== "\x0d" && input.charAt(parser_pos) !== "\x0a") {
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comment += input.charAt(parser_pos);
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parser_pos += 1;
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if (parser_pos >= input_length) {
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break;
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}
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}
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parser_pos += 1;
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if (wanted_newline) {
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print_newline();
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}
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return [comment, 'TK_COMMENT'];
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}
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}
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if (c === "'" || // string
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c === '"' || // string
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(c === '/' && ((last_type === 'TK_WORD' && in_array(last_text, ['return', 'do'])) || (last_type === 'TK_START_EXPR' || last_type === 'TK_START_BLOCK' || last_type === 'TK_END_BLOCK' || last_type === 'TK_OPERATOR' || last_type === 'TK_EQUALS' || last_type === 'TK_EOF' || last_type === 'TK_SEMICOLON')))) { // regexp
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sep = c;
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esc = false;
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resulting_string = c;
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if (parser_pos < input_length) {
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if (sep === '/') {
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// handle regexp separately...
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in_char_class = false;
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while (esc || in_char_class || input.charAt(parser_pos) !== sep) {
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resulting_string += input.charAt(parser_pos);
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if (!esc) {
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esc = input.charAt(parser_pos) === '\\';
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if (input.charAt(parser_pos) === '[') {
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in_char_class = true;
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}
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else if (input.charAt(parser_pos) === ']') {
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in_char_class = false;
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}
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}
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else {
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esc = false;
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}
|
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|
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parser_pos += 1;
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|
|
|
if (parser_pos >= input_length) {
|
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// incomplete string/rexp when end-of-file reached.
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// bail out with what had been received so far.
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return [resulting_string, 'TK_STRING'];
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}
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}
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}
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else {
|
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// and handle string also separately
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while (esc || input.charAt(parser_pos) !== sep) {
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resulting_string += input.charAt(parser_pos);
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if (!esc) {
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esc = input.charAt(parser_pos) === '\\';
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}
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else {
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esc = false;
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}
|
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|
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parser_pos += 1;
|
|
|
|
if (parser_pos >= input_length) {
|
|
// incomplete string/rexp when end-of-file reached.
|
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// bail out with what had been received so far.
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return [resulting_string, 'TK_STRING'];
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}
|
|
}
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}
|
|
}
|
|
|
|
parser_pos += 1;
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resulting_string += sep;
|
|
|
|
if (sep === '/') {
|
|
// regexps may have modifiers /regexp/MOD , so fetch those, too
|
|
while (parser_pos < input_length && in_array(input.charAt(parser_pos), wordchar)) {
|
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resulting_string += input.charAt(parser_pos);
|
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parser_pos += 1;
|
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}
|
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}
|
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return [resulting_string, 'TK_STRING'];
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}
|
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|
|
if (c === '#') {
|
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// Spidermonkey-specific sharp variables for circular references
|
|
// https://developer.mozilla.org/En/Sharp_variables_in_JavaScript
|
|
// http://mxr.mozilla.org/mozilla-central/source/js/src/jsscan.cpp around line 1935
|
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sharp = '#';
|
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|
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if (parser_pos < input_length && in_array(input.charAt(parser_pos), digits)) {
|
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do {
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c = input.charAt(parser_pos);
|
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sharp += c;
|
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parser_pos += 1;
|
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} while (parser_pos < input_length && c !== '#' && c !== '=');
|
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|
|
if (c === '#') {
|
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//
|
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}
|
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else if (input.charAt(parser_pos) === '[' && input.charAt(parser_pos + 1) === ']') {
|
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sharp += '[]';
|
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parser_pos += 2;
|
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}
|
|
else if (input.charAt(parser_pos) === '{' && input.charAt(parser_pos + 1) === '}') {
|
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sharp += '{}';
|
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parser_pos += 2;
|
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}
|
|
|
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return [sharp, 'TK_WORD'];
|
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}
|
|
}
|
|
|
|
if (c === '<' && input.substring(parser_pos - 1, parser_pos + 3) === '<!--') {
|
|
parser_pos += 3;
|
|
flags.in_html_comment = true;
|
|
return ['<!--', 'TK_COMMENT'];
|
|
}
|
|
|
|
if (c === '-' && flags.in_html_comment && input.substring(parser_pos - 1, parser_pos + 2) === '-->') {
|
|
flags.in_html_comment = false;
|
|
parser_pos += 2;
|
|
|
|
if (wanted_newline) {
|
|
print_newline();
|
|
}
|
|
|
|
return ['-->', 'TK_COMMENT'];
|
|
}
|
|
|
|
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_EQUALS'];
|
|
} else {
|
|
return [c, 'TK_OPERATOR'];
|
|
}
|
|
}
|
|
|
|
return [c, 'TK_UNKNOWN'];
|
|
}
|
|
|
|
// END get_next_token()
|
|
|
|
|
|
//----------------------------------
|
|
|
|
|
|
indent_string = '';
|
|
|
|
while (opt_indent_size > 0) {
|
|
indent_string += opt_indent_char;
|
|
opt_indent_size -= 1;
|
|
}
|
|
|
|
input = js_source_text;
|
|
last_word = ''; // last 'TK_WORD' passed
|
|
last_type = 'TK_START_EXPR'; // last token type
|
|
last_text = ''; // last token text
|
|
last_last_text = ''; // pre-last token text
|
|
output = [];
|
|
|
|
do_block_just_closed = false;
|
|
|
|
whitespace = "\n\r\t ".split('');
|
|
wordchar = 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789_$'.split('');
|
|
digits = '0123456789'.split('');
|
|
punct = '+ - * / % & ++ -- = += -= *= /= %= == === != !== > < >= <= >> << >>> >>>= >>= <<= && &= | || ! !! , : ? ^ ^= |= ::'.split(' ');
|
|
|
|
// words which should always start on new line.
|
|
line_starters = 'continue,try,throw,return,var,if,switch,case,default,for,while,break,function'.split(',');
|
|
|
|
// states showing if we are currently in expression (i.e. "if" case) - 'EXPRESSION', or in usual block (like, procedure), 'BLOCK'.
|
|
// some formatting depends on that.
|
|
flag_store = [];
|
|
set_mode('BLOCK');
|
|
|
|
parser_pos = 0;
|
|
while (true) {
|
|
t = get_next_token(parser_pos);
|
|
token_text = t[0];
|
|
token_type = t[1];
|
|
if (token_type === 'TK_EOF') {
|
|
break;
|
|
}
|
|
|
|
switch (token_type) {
|
|
|
|
case 'TK_START_EXPR':
|
|
if (token_text === '[') {
|
|
|
|
if (last_type === 'TK_WORD' || last_text === ')') {
|
|
// this is array index specifier, break immediately
|
|
// a[x], fn()[x]
|
|
if (in_array(last_text, line_starters)) {
|
|
print_single_space();
|
|
}
|
|
|
|
set_mode('(EXPRESSION)');
|
|
print_token();
|
|
break;
|
|
}
|
|
|
|
if (flags.mode === '[EXPRESSION]' || flags.mode === '[INDENTED-EXPRESSION]') {
|
|
if (last_last_text === ']' && last_text === ',') {
|
|
// ], [ goes to new line
|
|
if (flags.mode === '[EXPRESSION]') {
|
|
flags.mode = '[INDENTED-EXPRESSION]';
|
|
|
|
if (!opt_keep_array_indentation) {
|
|
indent();
|
|
}
|
|
}
|
|
|
|
set_mode('[EXPRESSION]');
|
|
|
|
if (!opt_keep_array_indentation) {
|
|
print_newline();
|
|
}
|
|
}
|
|
else if (last_text === '[') {
|
|
if (flags.mode === '[EXPRESSION]') {
|
|
flags.mode = '[INDENTED-EXPRESSION]';
|
|
if (!opt_keep_array_indentation) {
|
|
indent();
|
|
}
|
|
}
|
|
set_mode('[EXPRESSION]');
|
|
|
|
if (!opt_keep_array_indentation) {
|
|
print_newline();
|
|
}
|
|
}
|
|
else {
|
|
set_mode('[EXPRESSION]');
|
|
}
|
|
}
|
|
else {
|
|
set_mode('[EXPRESSION]');
|
|
}
|
|
}
|
|
else {
|
|
set_mode('(EXPRESSION)');
|
|
}
|
|
|
|
if (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' || last_text === '.') {
|
|
// do nothing on (( and )( and ][ and ]( and .(
|
|
}
|
|
else if (last_type !== 'TK_WORD' && last_type !== 'TK_OPERATOR') {
|
|
print_single_space();
|
|
}
|
|
else if (last_word === 'function') {
|
|
// function() vs function ()
|
|
if (opt_space_after_anon_function) {
|
|
print_single_space();
|
|
}
|
|
}
|
|
else if (in_array(last_text, line_starters) || last_text === 'catch') {
|
|
print_single_space();
|
|
}
|
|
|
|
print_token();
|
|
break;
|
|
|
|
case 'TK_END_EXPR':
|
|
if (token_text === ']') {
|
|
if (opt_keep_array_indentation) {
|
|
if (last_text === '}') {
|
|
// trim_output();
|
|
// print_newline(true);
|
|
remove_indent();
|
|
print_token();
|
|
restore_mode();
|
|
break;
|
|
}
|
|
}
|
|
else {
|
|
if (flags.mode === '[INDENTED-EXPRESSION]') {
|
|
if (last_text === ']') {
|
|
restore_mode();
|
|
print_newline();
|
|
print_token();
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
restore_mode();
|
|
print_token();
|
|
break;
|
|
|
|
case 'TK_START_BLOCK':
|
|
if (last_word === 'do') {
|
|
set_mode('DO_BLOCK');
|
|
}
|
|
else {
|
|
set_mode('BLOCK');
|
|
}
|
|
|
|
if (opt_braces_on_own_line) {
|
|
if (last_type !== 'TK_OPERATOR') {
|
|
if (last_text === 'return') {
|
|
print_single_space();
|
|
}
|
|
else {
|
|
print_newline(true);
|
|
}
|
|
}
|
|
|
|
print_token();
|
|
indent();
|
|
}
|
|
else {
|
|
if (last_type !== 'TK_OPERATOR' && last_type !== 'TK_START_EXPR') {
|
|
if (last_type === 'TK_START_BLOCK') {
|
|
print_newline();
|
|
}
|
|
else {
|
|
print_single_space();
|
|
}
|
|
}
|
|
else {
|
|
// if TK_OPERATOR or TK_START_EXPR
|
|
if (is_array(flags.previous_mode) && last_text === ',') {
|
|
print_newline(); // [a, b, c, {
|
|
}
|
|
}
|
|
indent();
|
|
print_token();
|
|
}
|
|
|
|
break;
|
|
|
|
case 'TK_END_BLOCK':
|
|
restore_mode();
|
|
|
|
if (opt_braces_on_own_line) {
|
|
print_newline();
|
|
print_token();
|
|
}
|
|
else {
|
|
if (last_type === 'TK_START_BLOCK') {
|
|
// nothing
|
|
if (just_added_newline) {
|
|
remove_indent();
|
|
}
|
|
else {
|
|
// {}
|
|
trim_output();
|
|
}
|
|
}
|
|
else {
|
|
print_newline();
|
|
}
|
|
|
|
print_token();
|
|
}
|
|
break;
|
|
|
|
case 'TK_WORD':
|
|
// no, it's not you. even I have problems understanding how this works
|
|
// and what does what.
|
|
if (do_block_just_closed) {
|
|
// do {} ## while ()
|
|
print_single_space();
|
|
print_token();
|
|
print_single_space();
|
|
do_block_just_closed = false;
|
|
break;
|
|
}
|
|
|
|
if (token_text === 'function') {
|
|
if ((just_added_newline || last_text === ';') && last_text !== '{') {
|
|
// make sure there is a nice clean space of at least one blank line
|
|
// before a new function definition
|
|
n_newlines = just_added_newline ? n_newlines : 0;
|
|
|
|
for (i = 0; i < 2 - n_newlines; i += 1) {
|
|
print_newline(false);
|
|
}
|
|
}
|
|
}
|
|
|
|
if (token_text === 'case' || token_text === 'default') {
|
|
if (last_text === ':') {
|
|
// switch cases following one another
|
|
remove_indent();
|
|
}
|
|
else {
|
|
// case statement starts in the same line where switch
|
|
flags.indentation_level -= 1;
|
|
print_newline();
|
|
flags.indentation_level += 1;
|
|
}
|
|
|
|
print_token();
|
|
flags.in_case = true;
|
|
break;
|
|
}
|
|
|
|
prefix = 'NONE';
|
|
|
|
if (last_type === 'TK_END_BLOCK') {
|
|
if (!in_array(token_text.toLowerCase(), ['else', 'catch', 'finally'])) {
|
|
prefix = 'NEWLINE';
|
|
}
|
|
else {
|
|
if (opt_braces_on_own_line) {
|
|
prefix = 'NEWLINE';
|
|
}
|
|
else {
|
|
prefix = 'SPACE';
|
|
print_single_space();
|
|
}
|
|
}
|
|
}
|
|
else if (last_type === 'TK_SEMICOLON' && (flags.mode === 'BLOCK' || flags.mode === 'DO_BLOCK')) {
|
|
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_WORD') {
|
|
prefix = 'SPACE';
|
|
}
|
|
else if (last_type === 'TK_START_BLOCK') {
|
|
prefix = 'NEWLINE';
|
|
}
|
|
else if (last_type === 'TK_END_EXPR') {
|
|
print_single_space();
|
|
prefix = 'NEWLINE';
|
|
}
|
|
|
|
if (last_type !== 'TK_END_BLOCK' && in_array(token_text.toLowerCase(), ['else', 'catch', 'finally'])) {
|
|
print_newline();
|
|
}
|
|
else if (in_array(token_text, line_starters) || prefix === 'NEWLINE') {
|
|
if (last_text === 'else') {
|
|
// no need to force newline on else break
|
|
print_single_space();
|
|
}
|
|
else if ((last_type === 'TK_START_EXPR' || last_text === '=' || last_text === ',') && token_text === 'function') {
|
|
// no need to force newline on 'function': (function
|
|
// DONOTHING
|
|
}
|
|
else if (last_text === 'return' || last_text === 'throw') {
|
|
// no newline between 'return nnn'
|
|
print_single_space();
|
|
}
|
|
else if (last_type !== 'TK_END_EXPR') {
|
|
if ((last_type !== 'TK_START_EXPR' || token_text !== 'var') && last_text !== ':') {
|
|
// no need to force newline on 'var': for (var x = 0...)
|
|
if (token_text === 'if' && last_word === 'else' && last_text !== '{') {
|
|
// no newline for } else if {
|
|
print_single_space();
|
|
}
|
|
else {
|
|
print_newline();
|
|
}
|
|
}
|
|
}
|
|
else {
|
|
if (in_array(token_text, line_starters) && last_text !== ')') {
|
|
print_newline();
|
|
}
|
|
}
|
|
}
|
|
else if (is_array(flags.mode) && last_text === ',' && last_last_text === '}') {
|
|
print_newline(); // }, in lists get a newline treatment
|
|
}
|
|
else if (prefix === 'SPACE') {
|
|
print_single_space();
|
|
}
|
|
|
|
print_token();
|
|
last_word = token_text;
|
|
|
|
if (token_text === 'var') {
|
|
flags.var_line = true;
|
|
flags.var_line_reindented = false;
|
|
flags.var_line_tainted = false;
|
|
}
|
|
|
|
if (token_text === 'if' || token_text === 'else') {
|
|
flags.if_line = true;
|
|
}
|
|
|
|
break;
|
|
|
|
case 'TK_SEMICOLON':
|
|
print_token();
|
|
flags.var_line = false;
|
|
flags.var_line_reindented = false;
|
|
break;
|
|
|
|
case 'TK_STRING':
|
|
if (last_type === 'TK_START_BLOCK' || last_type === 'TK_END_BLOCK' || last_type === 'TK_SEMICOLON') {
|
|
print_newline();
|
|
}
|
|
else if (last_type === 'TK_WORD') {
|
|
print_single_space();
|
|
}
|
|
|
|
print_token();
|
|
break;
|
|
|
|
case 'TK_EQUALS':
|
|
if (flags.var_line) {
|
|
// just got an '=' in a var-line, different formatting/line-breaking, etc will now be done
|
|
flags.var_line_tainted = true;
|
|
}
|
|
|
|
print_single_space();
|
|
print_token();
|
|
print_single_space();
|
|
break;
|
|
|
|
case 'TK_OPERATOR':
|
|
space_before = true;
|
|
space_after = true;
|
|
|
|
if (flags.var_line && token_text === ',' && (is_expression(flags.mode))) {
|
|
// do not break on comma, for(var a = 1, b = 2)
|
|
flags.var_line_tainted = false;
|
|
}
|
|
|
|
if (flags.var_line) {
|
|
if (token_text === ',') {
|
|
if (flags.var_line_tainted) {
|
|
print_token();
|
|
flags.var_line_reindented = true;
|
|
flags.var_line_tainted = false;
|
|
print_newline();
|
|
break;
|
|
}
|
|
else {
|
|
flags.var_line_tainted = false;
|
|
}
|
|
// } else if (token_text === ':') {
|
|
// hmm, when does this happen? tests don't catch this
|
|
// flags.var_line = false;
|
|
}
|
|
}
|
|
|
|
if (last_text === 'return' || last_text === 'throw') {
|
|
// "return" had a special handling in TK_WORD. Now we need to return the favor
|
|
print_single_space();
|
|
print_token();
|
|
break;
|
|
}
|
|
|
|
if (token_text === ':' && flags.in_case) {
|
|
print_token(); // colon really asks for separate treatment
|
|
print_newline();
|
|
flags.in_case = false;
|
|
break;
|
|
}
|
|
|
|
if (token_text === '::') {
|
|
// no spaces around exotic namespacing syntax operator
|
|
print_token();
|
|
break;
|
|
}
|
|
|
|
if (token_text === ',') {
|
|
if (flags.var_line) {
|
|
if (flags.var_line_tainted) {
|
|
print_token();
|
|
print_newline();
|
|
flags.var_line_tainted = false;
|
|
}
|
|
else {
|
|
print_token();
|
|
print_single_space();
|
|
}
|
|
}
|
|
else if (last_type === 'TK_END_BLOCK' && flags.mode !== "(EXPRESSION)") {
|
|
print_token();
|
|
if (flags.mode === 'OBJECT' && last_text === '}') {
|
|
print_newline();
|
|
} else {
|
|
print_single_space();
|
|
}
|
|
}
|
|
else {
|
|
if (flags.mode === 'OBJECT') {
|
|
print_token();
|
|
print_newline();
|
|
}
|
|
else {
|
|
// EXPR or DO_BLOCK
|
|
print_token();
|
|
print_single_space();
|
|
}
|
|
}
|
|
break;
|
|
// } else if (in_array(token_text, ['--', '++', '!']) || (in_array(token_text, ['-', '+']) && (in_array(last_type, ['TK_START_BLOCK', 'TK_START_EXPR', 'TK_EQUALS']) || in_array(last_text, line_starters) || in_array(last_text, ['==', '!=', '+=', '-=', '*=', '/=', '+', '-'])))) {
|
|
}
|
|
else 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(last_text, line_starters)))) {
|
|
// unary operators (and binary +/- pretending to be unary) special cases
|
|
space_before = false;
|
|
space_after = false;
|
|
|
|
if (last_text === ';' && is_expression(flags.mode)) {
|
|
// for (;; ++i)
|
|
// ^^^
|
|
space_before = true;
|
|
}
|
|
|
|
if (last_type === 'TK_WORD' && in_array(last_text, line_starters)) {
|
|
space_before = true;
|
|
}
|
|
|
|
if (flags.mode === 'BLOCK' && (last_text === '{' || last_text === ';')) {
|
|
// { foo; --i }
|
|
// foo(); --bar;
|
|
print_newline();
|
|
}
|
|
}
|
|
else if (token_text === '.') {
|
|
// decimal digits or object.property
|
|
space_before = false;
|
|
|
|
}
|
|
else if (token_text === ':') {
|
|
if (!is_ternary_op()) {
|
|
flags.mode = 'OBJECT';
|
|
space_before = false;
|
|
}
|
|
}
|
|
|
|
if (space_before) {
|
|
print_single_space();
|
|
}
|
|
|
|
print_token();
|
|
|
|
if (space_after) {
|
|
print_single_space();
|
|
}
|
|
|
|
if (token_text === '!') {
|
|
// flags.eat_next_space = true;
|
|
}
|
|
|
|
break;
|
|
|
|
case 'TK_BLOCK_COMMENT':
|
|
lines = token_text.split(/\x0a|\x0d\x0a/);
|
|
|
|
if (/^\/\*\*/.test(token_text)) {
|
|
// javadoc: reformat and reindent
|
|
print_newline();
|
|
output.push(lines[0]);
|
|
|
|
for (i = 1; i < lines.length; i += 1) {
|
|
print_newline();
|
|
output.push(' ');
|
|
output.push(lines[i].replace(/^\s\s*|\s\s*$/, ''));
|
|
}
|
|
}
|
|
else {
|
|
// simple block comment: leave intact
|
|
if (lines.length > 1) {
|
|
// multiline comment block starts with a new line
|
|
print_newline();
|
|
trim_output();
|
|
}
|
|
else {
|
|
// single-line /* comment */ stays where it is
|
|
print_single_space();
|
|
}
|
|
|
|
for (i = 0; i < lines.length; i += 1) {
|
|
output.push(lines[i]);
|
|
output.push('\n');
|
|
}
|
|
}
|
|
|
|
print_newline();
|
|
break;
|
|
|
|
case 'TK_INLINE_COMMENT':
|
|
print_single_space();
|
|
print_token();
|
|
if (is_expression(flags.mode)) {
|
|
print_single_space();
|
|
} else {
|
|
print_newline();
|
|
}
|
|
break;
|
|
|
|
case 'TK_COMMENT':
|
|
// print_newline();
|
|
if (wanted_newline) {
|
|
print_newline();
|
|
} else {
|
|
print_single_space();
|
|
}
|
|
print_token();
|
|
print_newline();
|
|
break;
|
|
|
|
case 'TK_UNKNOWN':
|
|
print_token();
|
|
break;
|
|
}
|
|
|
|
last_last_text = last_text;
|
|
last_type = token_type;
|
|
last_text = token_text;
|
|
}
|
|
|
|
return output.join('').replace(/[\n ]+$/, '');
|
|
}
|
|
|
|
module.exports = js_beautify; |