当我从ruby脚本中运行它时，我遇到了这行sed的问题：
sed -ne '/^<div class="results">/,/<\/body>/p' blah.html
我正在尝试在反引号中运行它``但它不会在Ruby脚本中正确执行。 blah.html的内容如下......
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE html
PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
<head>
<title>RSpec results</title>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<meta http-equiv="Expires" content="-1" />
<meta http-equiv="Pragma" content="no-cache" />
<style type="text/css">
body {
margin: 0;
padding: 0;
background: #fff;
font-size: 80%;
}
</style>
<script type="text/javascript">
// <![CDATA[
function addClass(element_id, classname) {
document.getElementById(element_id).className += (" " + classname);
}
function removeClass(element_id, classname) {
var elem = document.getElementById(element_id);
var classlist = elem.className.replace(classname,'');
elem.className = classlist;
}
function moveProgressBar(percentDone) {
document.getElementById("rspec-header").style.width = percentDone +"%";
}
function makeRed(element_id) {
removeClass(element_id, 'passed');
removeClass(element_id, 'not_implemented');
addClass(element_id,'failed');
}
function makeYellow(element_id) {
var elem = document.getElementById(element_id);
if (elem.className.indexOf("failed") == -1) { // class doesn't includes failed
if (elem.className.indexOf("not_implemented") == -1) { // class doesn't include not_implemented
removeClass(element_id, 'passed');
addClass(element_id,'not_implemented');
}
}
}
function apply_filters() {
var passed_filter = document.getElementById('passed_checkbox').checked;
var failed_filter = document.getElementById('failed_checkbox').checked;
var pending_filter = document.getElementById('pending_checkbox').checked;
assign_display_style("example passed", passed_filter);
assign_display_style("example failed", failed_filter);
assign_display_style("example not_implemented", pending_filter);
assign_display_style_for_group("example_group passed", passed_filter);
assign_display_style_for_group("example_group not_implemented", pending_filter, pending_filter || passed_filter);
assign_display_style_for_group("example_group failed", failed_filter, failed_filter || pending_filter || passed_filter);
}
function get_display_style(display_flag) {
var style_mode = 'none';
if (display_flag == true) {
style_mode = 'block';
}
return style_mode;
}
function assign_display_style(classname, display_flag) {
var style_mode = get_display_style(display_flag);
var elems = document.getElementsByClassName(classname)
for (var i=0; i<elems.length;i++) {
elems[i].style.display = style_mode;
}
}
function assign_display_style_for_group(classname, display_flag, subgroup_flag) {
var display_style_mode = get_display_style(display_flag);
var subgroup_style_mode = get_display_style(subgroup_flag);
var elems = document.getElementsByClassName(classname)
for (var i=0; i<elems.length;i++) {
var style_mode = display_style_mode;
if ((display_flag != subgroup_flag) && (elems[i].getElementsByTagName('dt')[0].innerHTML.indexOf(", ") != -1)) {
elems[i].style.display = subgroup_style_mode;
} else {
elems[i].style.display = display_style_mode;
}
}
}
// ]]>
</script>
<style type="text/css">
#rspec-header {
background: #65C400; color: #fff; height: 4em;
}
.rspec-report h1 {
margin: 0px 10px 0px 10px;
padding: 10px;
font-family: "Lucida Grande", Helvetica, sans-serif;
font-size: 1.8em;
position: absolute;
}
#label {
float:left;
}
#display-filters {
float:left;
padding: 28px 0 0 40%;
font-family: "Lucida Grande", Helvetica, sans-serif;
}
#summary {
float:right;
padding: 5px 10px;
font-family: "Lucida Grande", Helvetica, sans-serif;
text-align: right;
}
#summary p {
margin: 0 0 0 2px;
}
#summary #totals {
font-size: 1.2em;
}
.example_group {
margin: 0 10px 5px;
background: #fff;
}
dl {
margin: 0; padding: 0 0 5px;
font: normal 11px "Lucida Grande", Helvetica, sans-serif;
}
dt {
padding: 3px;
background: #65C400;
color: #fff;
font-weight: bold;
}
dd {
margin: 5px 0 5px 5px;
padding: 3px 3px 3px 18px;
}
dd .duration {
padding-left: 5px;
text-align: right;
right: 0px;
float:right;
}
dd.example.passed {
border-left: 5px solid #65C400;
border-bottom: 1px solid #65C400;
background: #DBFFB4; color: #3D7700;
}
dd.example.not_implemented {
border-left: 5px solid #FAF834;
border-bottom: 1px solid #FAF834;
background: #FCFB98; color: #131313;
}
dd.example.pending_fixed {
border-left: 5px solid #0000C2;
border-bottom: 1px solid #0000C2;
color: #0000C2; background: #D3FBFF;
}
dd.example.failed {
border-left: 5px solid #C20000;
border-bottom: 1px solid #C20000;
color: #C20000; background: #FFFBD3;
}
dt.not_implemented {
color: #000000; background: #FAF834;
}
dt.pending_fixed {
color: #FFFFFF; background: #C40D0D;
}
dt.failed {
color: #FFFFFF; background: #C40D0D;
}
#rspec-header.not_implemented {
color: #000000; background: #FAF834;
}
#rspec-header.pending_fixed {
color: #FFFFFF; background: #C40D0D;
}
#rspec-header.failed {
color: #FFFFFF; background: #C40D0D;
}
.backtrace {
color: #000;
font-size: 12px;
}
a {
color: #BE5C00;
}
/* Ruby code, style similar to vibrant ink */
.ruby {
font-size: 12px;
font-family: monospace;
color: white;
background-color: black;
padding: 0.1em 0 0.2em 0;
}
.ruby .keyword { color: #FF6600; }
.ruby .constant { color: #339999; }
.ruby .attribute { color: white; }
.ruby .global { color: white; }
.ruby .module { color: white; }
.ruby .class { color: white; }
.ruby .string { color: #66FF00; }
.ruby .ident { color: white; }
.ruby .method { color: #FFCC00; }
.ruby .number { color: white; }
.ruby .char { color: white; }
.ruby .comment { color: #9933CC; }
.ruby .symbol { color: white; }
.ruby .regex { color: #44B4CC; }
.ruby .punct { color: white; }
.ruby .escape { color: white; }
.ruby .interp { color: white; }
.ruby .expr { color: white; }
.ruby .offending { background-color: gray; }
.ruby .linenum {
width: 75px;
padding: 0.1em 1em 0.2em 0;
color: #000000;
background-color: #FFFBD3;
}
</style>
</head>
<body>
<div class="rspec-report">
<div id="rspec-header">
<div id="label">
<h1>RSpec Code Examples</h1>
</div>
<div id="display-filters">
<input id="passed_checkbox" name="passed_checkbox" type="checkbox" checked onchange="apply_filters()" value="1"> <label for="passed_checkbox">Passed</label>
<input id="failed_checkbox" name="failed_checkbox" type="checkbox" checked onchange="apply_filters()" value="2"> <label for="failed_checkbox">Failed</label>
<input id="pending_checkbox" name="pending_checkbox" type="checkbox" checked onchange="apply_filters()" value="3"> <label for="pending_checkbox">Pending</label>
</div>
<div id="summary">
<p id="totals"> </p>
<p id="duration"> </p>
</div>
</div>
<div class="results">
<div id="div_group_1" class="example_group passed">
<dl style="margin-left: 0px;">
<dt id="example_group_1" class="passed">Ark - Header (styles)</dt>
</dl>
</div>
<div id="div_group_2" class="example_group passed">
<dl style="margin-left: 15px;">
<dt id="example_group_2" class="passed">that we have hit a valid URL</dt>
<script type="text/javascript">moveProgressBar('14.2');</script>
<dd class="example passed"><span class="passed_spec_name">should not return an invalid error message</span><span class='duration'>7.76052s</span></dd>
</dl>
</div>
<div id="div_group_3" class="example_group passed">
<dl style="margin-left: 15px;">
<dt id="example_group_3" class="passed">Ark Home Button</dt>
<script type="text/javascript">moveProgressBar('28.5');</script>
<dd class="example passed"><span class="passed_spec_name">should exist</span><span class='duration'>2.22255s</span></dd>
</dl>
</div>
<div id="div_group_4" class="example_group passed">
<dl style="margin-left: 15px;">
<dt id="example_group_4" class="passed">Ark Sign in link</dt>
<script type="text/javascript">moveProgressBar('42.8');</script>
<dd class="example passed"><span class="passed_spec_name">should exist</span><span class='duration'>1.68413s</span></dd>
</dl>
</div>
<div id="div_group_5" class="example_group passed">
<dl style="margin-left: 15px;">
<dt id="example_group_5" class="passed">Ark Home Button Style</dt>
<script type="text/javascript">moveProgressBar('57.1');</script>
<dd class="example passed"><span class="passed_spec_name">should have accurate styling</span><span class='duration'>2.98297s</span></dd>
</dl>
</div>
<div id="div_group_6" class="example_group passed">
<dl style="margin-left: 15px;">
<dt id="example_group_6" class="passed">Ark SignIn Button Style</dt>
<script type="text/javascript">moveProgressBar('71.4');</script>
<dd class="example passed"><span class="passed_spec_name">should have accurate styling</span><span class='duration'>3.77360s</span></dd>
</dl>
</div>
<div id="div_group_7" class="example_group passed">
<dl style="margin-left: 15px;">
<dt id="example_group_7" class="passed">Ark header Topbar Style</dt>
<script type="text/javascript">moveProgressBar('85.7');</script>
<dd class="example passed"><span class="passed_spec_name">should have accurate styling</span><span class='duration'>2.78883s</span></dd>
</dl>
</div>
<div id="div_group_8" class="example_group passed">
<dl style="margin-left: 15px;">
<dt id="example_group_8" class="passed">Post Sign-In Style</dt>
<script type="text/javascript">moveProgressBar('100.0');</script>
<dd class="example passed"><span class="passed_spec_name">should have accurate styling</span><span class='duration'>17.62036s</span></dd>
</dl>
</div>
<script type="text/javascript">document.getElementById('duration').innerHTML = "Finished in <strong>38.83569 seconds</strong>";</script>
<script type="text/javascript">document.getElementById('totals').innerHTML = "7 examples, 0 failures";</script>
</div>
</div>
</body>
</html>
当我在mac osx中从终端尝试相同的命令时，它没有问题......
当我尝试从Ruby中运行命令时，这是我得到的错误：
sed: 2: "/^<div class="results"> ...": undefined label 'ody>/p'
答案 0 :(得分：5)
Ruby在执行命令之前用简单的\/替换/序列。所以你的sed脚本毁了。尝试使用双反斜杠（\\/）。