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use CodeMirror to highlight code blocks
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// CodeMirror, copyright (c) by Marijn Haverbeke and others | ||
// Distributed under an MIT license: http://codemirror.net/LICENSE | ||
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(function(mod) { | ||
if (typeof exports == "object" && typeof module == "object") // CommonJS | ||
mod(require("../../lib/codemirror")); | ||
else if (typeof define == "function" && define.amd) // AMD | ||
define(["../../lib/codemirror"], mod); | ||
else // Plain browser env | ||
mod(CodeMirror); | ||
})(function(CodeMirror) { | ||
"use strict"; | ||
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CodeMirror.runMode = function(string, modespec, callback, options) { | ||
var mode = CodeMirror.getMode(CodeMirror.defaults, modespec); | ||
var ie = /MSIE \d/.test(navigator.userAgent); | ||
var ie_lt9 = ie && (document.documentMode == null || document.documentMode < 9); | ||
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if (callback.appendChild) { | ||
var tabSize = (options && options.tabSize) || CodeMirror.defaults.tabSize; | ||
var node = callback, col = 0; | ||
node.innerHTML = ""; | ||
callback = function(text, style) { | ||
if (text == "\n") { | ||
// Emitting LF or CRLF on IE8 or earlier results in an incorrect display. | ||
// Emitting a carriage return makes everything ok. | ||
node.appendChild(document.createTextNode(ie_lt9 ? '\r' : text)); | ||
col = 0; | ||
return; | ||
} | ||
var content = ""; | ||
// replace tabs | ||
for (var pos = 0;;) { | ||
var idx = text.indexOf("\t", pos); | ||
if (idx == -1) { | ||
content += text.slice(pos); | ||
col += text.length - pos; | ||
break; | ||
} else { | ||
col += idx - pos; | ||
content += text.slice(pos, idx); | ||
var size = tabSize - col % tabSize; | ||
col += size; | ||
for (var i = 0; i < size; ++i) content += " "; | ||
pos = idx + 1; | ||
} | ||
} | ||
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if (style) { | ||
var sp = node.appendChild(document.createElement("span")); | ||
sp.className = "cm-" + style.replace(/ +/g, " cm-"); | ||
sp.appendChild(document.createTextNode(content)); | ||
} else { | ||
node.appendChild(document.createTextNode(content)); | ||
} | ||
}; | ||
} | ||
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var lines = CodeMirror.splitLines(string), state = (options && options.state) || CodeMirror.startState(mode); | ||
for (var i = 0, e = lines.length; i < e; ++i) { | ||
if (i) callback("\n"); | ||
var stream = new CodeMirror.StringStream(lines[i]); | ||
if (!stream.string && mode.blankLine) mode.blankLine(state); | ||
while (!stream.eol()) { | ||
var style = mode.token(stream, state); | ||
callback(stream.current(), style, i, stream.start, state); | ||
stream.start = stream.pos; | ||
} | ||
} | ||
}; | ||
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}); |
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