diff options
Diffstat (limited to 'toolkit/components/microformats/test/static/javascript/beautify.js')
| -rw-r--r-- | toolkit/components/microformats/test/static/javascript/beautify.js | 518 |
1 files changed, 518 insertions, 0 deletions
diff --git a/toolkit/components/microformats/test/static/javascript/beautify.js b/toolkit/components/microformats/test/static/javascript/beautify.js new file mode 100644 index 000000000..55d06cb08 --- /dev/null +++ b/toolkit/components/microformats/test/static/javascript/beautify.js @@ -0,0 +1,518 @@ +/* + + JS Beautifier +--------------- + + Written by Einars "elfz" Lielmanis, <elfz@laacz.lv> + http://elfz.laacz.lv/beautify/ + + Originally converted to javascript by Vital, <vital76@gmail.com> + http://my.opera.com/Vital/blog/2007/11/21/javascript-beautify-on-javascript-translated + + + You are free to use this in any way you want, in case you find this useful or working for you. + + Usage: + js_beautify(js_source_text); + + +*/ + + +function js_beautify(js_source_text, indent_size, indent_character) +{ + + var input, output, token_text, last_type, current_mode, modes, indent_level, indent_string; + var whitespace, wordchar, punct; + + indent_character = indent_character || ' '; + indent_size = indent_size || 4; + + indent_string = ''; + while (indent_size--) indent_string += indent_character; + + input = js_source_text; + + last_word = ''; // last 'TK_WORD' passed + last_type = 'TK_START_EXPR'; // last token type + last_text = ''; // last token text + output = ''; + + whitespace = "\n\r\t ".split(''); + wordchar = 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789_$'.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. + current_mode = 'BLOCK'; + modes = [current_mode]; + + indent_level = 0; + parser_pos = 0; // parser position + in_case = false; // flag for parser that case/default has been processed, and next colon needs special attention + while (true) { + var 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': + + set_mode('EXPRESSION'); + if (last_type == 'TK_END_EXPR' || last_type == 'TK_START_EXPR') { + // do nothing on (( and )( and ][ and ]( .. + } else if (last_type != 'TK_WORD' && last_type != 'TK_OPERATOR') { + print_space(); + } else if (in_array(last_word, line_starters) && last_word != 'function') { + print_space(); + } + print_token(); + break; + + case 'TK_END_EXPR': + + print_token(); + restore_mode(); + break; + + case 'TK_START_BLOCK': + + set_mode('BLOCK'); + if (last_type != 'TK_OPERATOR' && last_type != 'TK_START_EXPR') { + if (last_type == 'TK_START_BLOCK') { + print_newline(); + } else { + print_space(); + } + } + print_token(); + indent(); + break; + + case 'TK_END_BLOCK': + + if (last_type == 'TK_END_EXPR') { + unindent(); + print_newline(); + } else if (last_type == 'TK_END_BLOCK') { + unindent(); + print_newline(); + } else if (last_type == 'TK_START_BLOCK') { + // nothing + unindent(); + } else { + unindent(); + print_newline(); + } + print_token(); + restore_mode(); + break; + + case 'TK_WORD': + + 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 + unindent(); + print_newline(); + indent(); + } + print_token(); + in_case = true; + break; + } + + prefix = 'NONE'; + if (last_type == 'TK_END_BLOCK') { + if (!in_array(token_text.toLowerCase(), ['else', 'catch', 'finally'])) { + prefix = 'NEWLINE'; + } else { + prefix = 'SPACE'; + print_space(); + } + } else if (last_type == 'TK_END_COMMAND' && current_mode == 'BLOCK') { + prefix = 'NEWLINE'; + } else if (last_type == 'TK_END_COMMAND' && current_mode == 'EXPRESSION') { + prefix = 'SPACE'; + } 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_space(); + prefix = 'NEWLINE'; + } + + if (in_array(token_text, line_starters) || prefix == 'NEWLINE') { + + if (last_text == 'else') { + // no need to force newline on else break + print_space(); + } else if ((last_type == 'TK_START_EXPR' || last_text == '=') && token_text == 'function') { + // no need to force newline on 'function': (function + // DONOTHING + } else if (last_type == 'TK_WORD' && (last_text == 'return' || last_text == 'throw')) { + // no newline between 'return nnn' + print_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_type == 'TK_WORD' && last_word == 'else') { + // no newline for } else if { + print_space(); + } else { + print_newline(); + } + } + } + } else if (prefix == 'SPACE') { + print_space(); + } + print_token(); + last_word = token_text; + break; + + case 'TK_END_COMMAND': + + print_token(); + break; + + case 'TK_STRING': + + if (last_type == 'TK_START_BLOCK' || last_type == 'TK_END_BLOCK') { + print_newline(); + } else if (last_type == 'TK_WORD') { + print_space(); + } + print_token(); + break; + + case 'TK_OPERATOR': + start_delim = true; + end_delim = true; + + if (token_text == ':' && in_case) { + print_token(); // colon really asks for separate treatment + print_newline(); + break; + } + + in_case = false; + + if (token_text == ',') { + if (last_type == 'TK_END_BLOCK') { + print_token(); + print_newline(); + } else { + if (current_mode == 'BLOCK') { + print_token(); + print_newline(); + } else { + print_token(); + print_space(); + } + } + break; + } else if (token_text == '--' || token_text == '++') { // unary operators special case + if (last_text == ';') { + // space for (;; ++i) + start_delim = true; + end_delim = false; + } else { + start_delim = false; + end_delim = false; + } + } else if (token_text == '!' && last_type == 'TK_START_EXPR') { + // special case handling: if (!a) + start_delim = false; + end_delim = false; + } else if (last_type == 'TK_OPERATOR') { + start_delim = false; + end_delim = false; + } else if (last_type == 'TK_END_EXPR') { + start_delim = true; + end_delim = true; + } else if (token_text == '.') { + // decimal digits or object.property + start_delim = false; + end_delim = false; + + } else if (token_text == ':') { + // zz: xx + // can't differentiate ternary op, so for now it's a ? b: c; without space before colon + start_delim = false; + } + if (start_delim) { + print_space(); + } + + print_token(); + + if (end_delim) { + print_space(); + } + break; + + case 'TK_BLOCK_COMMENT': + + print_newline(); + print_token(); + print_newline(); + break; + + case 'TK_COMMENT': + + // print_newline(); + print_space(); + print_token(); + print_newline(); + break; + + case 'TK_UNKNOWN': + print_token(); + break; + } + + if (token_type != 'TK_COMMENT') { + last_type = token_type; + last_text = token_text; + } + } + + return output; + + + + + function print_newline(ignore_repeated) + { + ignore_repeated = typeof ignore_repeated == 'undefined' ? true: ignore_repeated; + output = output.replace(/[ \t]+$/, ''); // remove possible indent + if (output == '') return; // no newline on start of file + if (output.substr(output.length - 1) != "\n" || !ignore_repeated) { + output += "\n"; + } + for (var i = 0; i < indent_level; i++) { + output += indent_string; + } + } + + + + function print_space() + { + if (output && output.substr(output.length - 1) != ' ' && output.substr(output.length - 1) != '\n') { // prevent occassional duplicate space + output += ' '; + } + } + + + function print_token() + { + output += token_text; + } + + function indent() + { + indent_level++; + } + + + function unindent() + { + if (indent_level) { + indent_level--; + } + } + + + function remove_indent() + { + if (output.substr(output.length - indent_string.length) == indent_string) { + output = output.substr(0, output.length - indent_string.length); + } + } + + + function set_mode(mode) + { + modes.push(current_mode); + current_mode = mode; + } + + + function restore_mode() + { + current_mode = modes.pop(); + } + + + + function get_next_token() + { + var n_newlines = 0; + var c = ''; + + do { + if (parser_pos >= input.length) { + return ['', 'TK_EOF']; + } + c = input.charAt(parser_pos); + + parser_pos += 1; + if (c == "\n") { + n_newlines += 1; + } + } + while (in_array(c, whitespace)); + + if (n_newlines > 1) { + for (var i = 0; i < n_newlines; i++) { + print_newline(i == 0); + } + } + var wanted_newline = n_newlines == 1; + + + if (in_array(c, wordchar)) { + if (parser_pos < input.length) { + while (in_array(input.charAt(parser_pos), wordchar)) { + 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) == '-') { + parser_pos += 1; + + var t = get_next_token(parser_pos); + next_word = t[0]; + next_type = t[1]; + + c += '-' + next_word; + return [c, 'TK_WORD']; + } + + if (c == 'in') { // hack for 'in' operator + return [c, 'TK_OPERATOR']; + } + 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_END_COMMAND']; + } + + if (c == '/') { + // peek for comment /* ... */ + if (input.charAt(parser_pos) == '*') { + comment = ''; + parser_pos += 1; + if (parser_pos < input.length) { + while (! (input.charAt(parser_pos) == '*' && input.charAt(parser_pos + 1) && input.charAt(parser_pos + 1) == '/') && parser_pos < input.length) { + comment += input.charAt(parser_pos); + parser_pos += 1; + if (parser_pos >= input.length) break; + } + } + parser_pos += 2; + return ['/*' + comment + '*/', 'TK_BLOCK_COMMENT']; + } + // peek for comment // ... + if (input.charAt(parser_pos) == '/') { + comment = c; + while (input.charAt(parser_pos) != "\x0d" && input.charAt(parser_pos) != "\x0a") { + comment += input.charAt(parser_pos); + parser_pos += 1; + if (parser_pos >= input.length) break; + } + parser_pos += 1; + if (wanted_newline) { + print_newline(); + } + return [comment, 'TK_COMMENT']; + } + + } + + if (c == "'" || // string + c == '"' || // string + (c == '/' && + ((last_type == 'TK_WORD' && last_text == 'return') || (last_type == 'TK_START_EXPR' || last_type == 'TK_END_BLOCK' || last_type == 'TK_OPERATOR' || last_type == 'TK_EOF' || last_type == 'TK_END_COMMAND')))) { // regexp + sep = c; + c = ''; + esc = false; + + if (parser_pos < input.length) { + + while (esc || input.charAt(parser_pos) != sep) { + c += input.charAt(parser_pos); + if (!esc) { + esc = input.charAt(parser_pos) == '\\'; + } else { + esc = false; + } + parser_pos += 1; + if (parser_pos >= input.length) break; + } + + } + + parser_pos += 1; + if (last_type == 'TK_END_COMMAND') { + print_newline(); + } + return [sep + c + sep, 'TK_STRING']; + } + + 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; + } + return [c, 'TK_OPERATOR']; + } + + return [c, 'TK_UNKNOWN']; + } + + + function in_array(what, arr) + { + for (var i = 0; i < arr.length; i++) + { + if (arr[i] == what) return true; + } + return false; + } +} |