github.com/elliott5/community@v0.14.1-0.20160709191136-823126fb026a/app/public/codemirror/addon/search/jump-to-line.js (about)

     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  });