| 123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167 | // CodeMirror, copyright (c) by Marijn Haverbeke and others// Distributed under an MIT license: https://codemirror.net/LICENSE// Highlighting text that matches the selection//// Defines an option highlightSelectionMatches, which, when enabled,// will style strings that match the selection throughout the// document.//// The option can be set to true to simply enable it, or to a// {minChars, style, wordsOnly, showToken, delay} object to explicitly// configure it. minChars is the minimum amount of characters that should be// selected for the behavior to occur, and style is the token style to// apply to the matches. This will be prefixed by "cm-" to create an// actual CSS class name. If wordsOnly is enabled, the matches will be// highlighted only if the selected text is a word. showToken, when enabled,// will cause the current token to be highlighted when nothing is selected.// delay is used to specify how much time to wait, in milliseconds, before// highlighting the matches. If annotateScrollbar is enabled, the occurrences// will be highlighted on the scrollbar via the matchesonscrollbar addon.(function(mod) {  if (typeof exports == "object" && typeof module == "object") // CommonJS    mod(require("../../lib/codemirror"), require("./matchesonscrollbar"));  else if (typeof define == "function" && define.amd) // AMD    define(["../../lib/codemirror", "./matchesonscrollbar"], mod);  else // Plain browser env    mod(CodeMirror);})(function(CodeMirror) {  "use strict";  var defaults = {    style: "matchhighlight",    minChars: 2,    delay: 100,    wordsOnly: false,    annotateScrollbar: false,    showToken: false,    trim: true  }  function State(options) {    this.options = {}    for (var name in defaults)      this.options[name] = (options && options.hasOwnProperty(name) ? options : defaults)[name]    this.overlay = this.timeout = null;    this.matchesonscroll = null;    this.active = false;  }  CodeMirror.defineOption("highlightSelectionMatches", false, function(cm, val, old) {    if (old && old != CodeMirror.Init) {      removeOverlay(cm);      clearTimeout(cm.state.matchHighlighter.timeout);      cm.state.matchHighlighter = null;      cm.off("cursorActivity", cursorActivity);      cm.off("focus", onFocus)    }    if (val) {      var state = cm.state.matchHighlighter = new State(val);      if (cm.hasFocus()) {        state.active = true        highlightMatches(cm)      } else {        cm.on("focus", onFocus)      }      cm.on("cursorActivity", cursorActivity);    }  });  function cursorActivity(cm) {    var state = cm.state.matchHighlighter;    if (state.active || cm.hasFocus()) scheduleHighlight(cm, state)  }  function onFocus(cm) {    var state = cm.state.matchHighlighter    if (!state.active) {      state.active = true      scheduleHighlight(cm, state)    }  }  function scheduleHighlight(cm, state) {    clearTimeout(state.timeout);    state.timeout = setTimeout(function() {highlightMatches(cm);}, state.options.delay);  }  function addOverlay(cm, query, hasBoundary, style) {    var state = cm.state.matchHighlighter;    cm.addOverlay(state.overlay = makeOverlay(query, hasBoundary, style));    if (state.options.annotateScrollbar && cm.showMatchesOnScrollbar) {      var searchFor = hasBoundary ? new RegExp((/\w/.test(query.charAt(0)) ? "\\b" : "") +                                               query.replace(/[\\\[.+*?(){|^$]/g, "\\$&") +                                               (/\w/.test(query.charAt(query.length - 1)) ? "\\b" : "")) : query;      state.matchesonscroll = cm.showMatchesOnScrollbar(searchFor, false,        {className: "CodeMirror-selection-highlight-scrollbar"});    }  }  function removeOverlay(cm) {    var state = cm.state.matchHighlighter;    if (state.overlay) {      cm.removeOverlay(state.overlay);      state.overlay = null;      if (state.matchesonscroll) {        state.matchesonscroll.clear();        state.matchesonscroll = null;      }    }  }  function highlightMatches(cm) {    cm.operation(function() {      var state = cm.state.matchHighlighter;      removeOverlay(cm);      if (!cm.somethingSelected() && state.options.showToken) {        var re = state.options.showToken === true ? /[\w$]/ : state.options.showToken;        var cur = cm.getCursor(), line = cm.getLine(cur.line), start = cur.ch, end = start;        while (start && re.test(line.charAt(start - 1))) --start;        while (end < line.length && re.test(line.charAt(end))) ++end;        if (start < end)          addOverlay(cm, line.slice(start, end), re, state.options.style);        return;      }      var from = cm.getCursor("from"), to = cm.getCursor("to");      if (from.line != to.line) return;      if (state.options.wordsOnly && !isWord(cm, from, to)) return;      var selection = cm.getRange(from, to)      if (state.options.trim) selection = selection.replace(/^\s+|\s+$/g, "")      if (selection.length >= state.options.minChars)        addOverlay(cm, selection, false, state.options.style);    });  }  function isWord(cm, from, to) {    var str = cm.getRange(from, to);    if (str.match(/^\w+$/) !== null) {        if (from.ch > 0) {            var pos = {line: from.line, ch: from.ch - 1};            var chr = cm.getRange(pos, from);            if (chr.match(/\W/) === null) return false;        }        if (to.ch < cm.getLine(from.line).length) {            var pos = {line: to.line, ch: to.ch + 1};            var chr = cm.getRange(to, pos);            if (chr.match(/\W/) === null) return false;        }        return true;    } else return false;  }  function boundariesAround(stream, re) {    return (!stream.start || !re.test(stream.string.charAt(stream.start - 1))) &&      (stream.pos == stream.string.length || !re.test(stream.string.charAt(stream.pos)));  }  function makeOverlay(query, hasBoundary, style) {    return {token: function(stream) {      if (stream.match(query) &&          (!hasBoundary || boundariesAround(stream, hasBoundary)))        return style;      stream.next();      stream.skipTo(query.charAt(0)) || stream.skipToEnd();    }};  }});
 |