clojure.js 4.8 KB

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  1. /* ***** BEGIN LICENSE BLOCK *****
  2. * Distributed under the BSD license:
  3. *
  4. * Copyright (c) 2010, Ajax.org B.V.
  5. * All rights reserved.
  6. *
  7. * Redistribution and use in source and binary forms, with or without
  8. * modification, are permitted provided that the following conditions are met:
  9. * * Redistributions of source code must retain the above copyright
  10. * notice, this list of conditions and the following disclaimer.
  11. * * Redistributions in binary form must reproduce the above copyright
  12. * notice, this list of conditions and the following disclaimer in the
  13. * documentation and/or other materials provided with the distribution.
  14. * * Neither the name of Ajax.org B.V. nor the
  15. * names of its contributors may be used to endorse or promote products
  16. * derived from this software without specific prior written permission.
  17. *
  18. * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
  19. * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
  20. * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
  21. * DISCLAIMED. IN NO EVENT SHALL AJAX.ORG B.V. BE LIABLE FOR ANY
  22. * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
  23. * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  24. * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
  25. * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  26. * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
  27. * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  28. *
  29. * ***** END LICENSE BLOCK ***** */
  30. define(function(require, exports, module) {
  31. "use strict";
  32. var oop = require("../lib/oop");
  33. var TextMode = require("./text").Mode;
  34. var ClojureHighlightRules = require("./clojure_highlight_rules").ClojureHighlightRules;
  35. var MatchingParensOutdent = require("./matching_parens_outdent").MatchingParensOutdent;
  36. var Mode = function() {
  37. this.HighlightRules = ClojureHighlightRules;
  38. this.$outdent = new MatchingParensOutdent();
  39. };
  40. oop.inherits(Mode, TextMode);
  41. (function() {
  42. this.lineCommentStart = ";";
  43. this.minorIndentFunctions = ["defn", "defn-", "defmacro", "def", "deftest", "testing"];
  44. this.$toIndent = function(str) {
  45. return str.split('').map(function(ch) {
  46. if (/\s/.exec(ch)) {
  47. return ch;
  48. } else {
  49. return ' ';
  50. }
  51. }).join('');
  52. };
  53. this.$calculateIndent = function(line, tab) {
  54. var baseIndent = this.$getIndent(line);
  55. var delta = 0;
  56. var isParen, ch;
  57. // Walk back from end of line, find matching braces
  58. for (var i = line.length - 1; i >= 0; i--) {
  59. ch = line[i];
  60. if (ch === '(') {
  61. delta--;
  62. isParen = true;
  63. } else if (ch === '(' || ch === '[' || ch === '{') {
  64. delta--;
  65. isParen = false;
  66. } else if (ch === ')' || ch === ']' || ch === '}') {
  67. delta++;
  68. }
  69. if (delta < 0) {
  70. break;
  71. }
  72. }
  73. if (delta < 0 && isParen) {
  74. // Were more brackets opened than closed and was a ( left open?
  75. i += 1;
  76. var iBefore = i;
  77. var fn = '';
  78. while (true) {
  79. ch = line[i];
  80. if (ch === ' ' || ch === '\t') {
  81. if(this.minorIndentFunctions.indexOf(fn) !== -1) {
  82. return this.$toIndent(line.substring(0, iBefore - 1) + tab);
  83. } else {
  84. return this.$toIndent(line.substring(0, i + 1));
  85. }
  86. } else if (ch === undefined) {
  87. return this.$toIndent(line.substring(0, iBefore - 1) + tab);
  88. }
  89. fn += line[i];
  90. i++;
  91. }
  92. } else if(delta < 0 && !isParen) {
  93. // Were more brackets openend than closed and was it not a (?
  94. return this.$toIndent(line.substring(0, i+1));
  95. } else if(delta > 0) {
  96. // Mere more brackets closed than opened? Outdent.
  97. baseIndent = baseIndent.substring(0, baseIndent.length - tab.length);
  98. return baseIndent;
  99. } else {
  100. // Were they nicely matched? Just indent like line before.
  101. return baseIndent;
  102. }
  103. };
  104. this.getNextLineIndent = function(state, line, tab) {
  105. return this.$calculateIndent(line, tab);
  106. };
  107. this.checkOutdent = function(state, line, input) {
  108. return this.$outdent.checkOutdent(line, input);
  109. };
  110. this.autoOutdent = function(state, doc, row) {
  111. this.$outdent.autoOutdent(doc, row);
  112. };
  113. this.$id = "ace/mode/clojure";
  114. }).call(Mode.prototype);
  115. exports.Mode = Mode;
  116. });