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/admin/jscripts/codemirror/addon/search/ -> jump-to-line.js (source)

   1  // CodeMirror, copyright (c) by Marijn Haverbeke and others
   2  // Distributed under an MIT license: http://codemirror.net/LICENSE
   3  
   4  // Defines jumpToLine command. Uses dialog.js if present.
   5  
   6  (function(mod) {
   7    if (typeof exports == "object" && typeof module == "object") // CommonJS
   8      mod(require("../../lib/codemirror"), require("../dialog/dialog"));
   9    else if (typeof define == "function" && define.amd) // AMD
  10      define(["../../lib/codemirror", "../dialog/dialog"], mod);
  11    else // Plain browser env
  12      mod(CodeMirror);
  13  })(function(CodeMirror) {
  14    "use strict";
  15  
  16    function dialog(cm, text, shortText, deflt, f) {
  17      if (cm.openDialog) cm.openDialog(text, f, {value: deflt, selectValueOnOpen: true});
  18      else f(prompt(shortText, deflt));
  19    }
  20  
  21    var jumpDialog =
  22        'Jump to line: <input type="text" style="width: 10em" class="CodeMirror-search-field"/> <span style="color: #888" class="CodeMirror-search-hint">(Use line:column or scroll% syntax)</span>';
  23  
  24    function interpretLine(cm, string) {
  25      var num = Number(string)
  26      if (/^[-+]/.test(string)) return cm.getCursor().line + num
  27      else return num - 1
  28    }
  29  
  30    CodeMirror.commands.jumpToLine = function(cm) {
  31      var cur = cm.getCursor();
  32      dialog(cm, jumpDialog, "Jump to line:", (cur.line + 1) + ":" + cur.ch, function(posStr) {
  33        if (!posStr) return;
  34  
  35        var match;
  36        if (match = /^\s*([\+\-]?\d+)\s*\:\s*(\d+)\s*$/.exec(posStr)) {
  37          cm.setCursor(interpretLine(cm, match[1]), Number(match[2]))
  38        } else if (match = /^\s*([\+\-]?\d+(\.\d+)?)\%\s*/.exec(posStr)) {
  39          var line = Math.round(cm.lineCount() * Number(match[1]) / 100);
  40          if (/^[-+]/.test(match[1])) line = cur.line + line + 1;
  41          cm.setCursor(line - 1, cur.ch);
  42        } else if (match = /^\s*\:?\s*([\+\-]?\d+)\s*/.exec(posStr)) {
  43          cm.setCursor(interpretLine(cm, match[1]), cur.ch);
  44        }
  45      });
  46    };
  47  
  48    CodeMirror.keyMap["default"]["Alt-G"] = "jumpToLine";
  49  });


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