Regular Expressions 101

Save & Share

Flavor

  • PCRE2 (PHP >=7.3)
  • PCRE (PHP <7.3)
  • ECMAScript (JavaScript)
  • Python
  • Golang
  • Java 8
  • .NET 7.0 (C#)
  • Rust
  • Regex Flavor Guide

Function

  • Match
  • Substitution
  • List
  • Unit Tests

Tools

Sponsors
There are currently no sponsors. Become a sponsor today!
An explanation of your regex will be automatically generated as you type.
Detailed match information will be displayed here automatically.
  • All Tokens
  • Common Tokens
  • General Tokens
  • Anchors
  • Meta Sequences
  • Quantifiers
  • Group Constructs
  • Character Classes
  • Flags/Modifiers
  • Substitution
  • A single character of: a, b or c
    [abc]
  • A character except: a, b or c
    [^abc]
  • A character in the range: a-z
    [a-z]
  • A character not in the range: a-z
    [^a-z]
  • A character in the range: a-z or A-Z
    [a-zA-Z]
  • Any single character
    .
  • Alternate - match either a or b
    a|b
  • Any whitespace character
    \s
  • Any non-whitespace character
    \S
  • Any digit
    \d
  • Any non-digit
    \D
  • Any word character
    \w
  • Any non-word character
    \W
  • Non-capturing group
    (?:...)
  • Capturing group
    (...)
  • Zero or one of a
    a?
  • Zero or more of a
    a*
  • One or more of a
    a+
  • Exactly 3 of a
    a{3}
  • 3 or more of a
    a{3,}
  • Between 3 and 6 of a
    a{3,6}
  • Start of string
    ^
  • End of string
    $
  • A word boundary
    \b
  • Non-word boundary
    \B

Regular Expression

/
/
g

Test String

Code Generator

Generated Code

// include the latest version of the regex crate in your Cargo.toml extern crate regex; use regex::Regex; fn main() { let regex = Regex::new(r#"(?<code1><a href="\/questions\/\d+.+?">)(?<code2>.+)(?<code3><\/a)"#).unwrap(); let string = "<!DOCTYPE html> <html> <head> <title>Newest Questions - Page 2 - Electrical Engineering Stack Exchange</title> <link rel=\"shortcut icon\" href=\"//cdn.sstatic.net/electronics/img/favicon.ico\"> <link rel=\"apple-touch-icon image_src\" href=\"//cdn.sstatic.net/electronics/img/apple-touch-icon.png\"> <link rel=\"search\" type=\"application/opensearchdescription+xml\" title=\"Electrical Engineering Stack Exchange\" href=\"/opensearch.xml\"> <script type=\"text/javascript\" src=\"//ajax.googleapis.com/ajax/libs/jquery/1.7.1/jquery.min.js\"></script> <script type=\"text/javascript\" src=\"//cdn.sstatic.net/js/stub.js?v=5d233283ca8d\"></script> <link rel=\"stylesheet\" type=\"text/css\" href=\"//cdn.sstatic.net/electronics/all.css?v=672ddec9ce04\"> <script type=\"text/x-mathjax-config\"> MathJax.Hub.Config({\"HTML-CSS\": { preferredFont: \"TeX\", availableFonts: [\"STIX\",\"TeX\"], linebreaks: { automatic:true }, EqnChunk: (MathJax.Hub.Browser.isMobile ? 10 : 50) }, tex2jax: { inlineMath: [ [\"\\\\$\", \"\\\\$\"] ], displayMath: [ [\"$$\",\"$$\"], [\"\\\\[\", \"\\\\]\"] ], processEscapes: true, ignoreClass: \"tex2jax_ignore|dno\" }, TeX: { noUndefined: { attributes: { mathcolor: \"red\", mathbackground: \"#FFEEEE\", mathsize: \"90%\" } }, Macros: { href: \"{}\" } }, messageStyle: \"none\" }); </script> <script type=\"text/javascript\" src=\"http://cdn.mathjax.org/mathjax/latest/MathJax.js?config=TeX-AMS_HTML\"></script> <script type=\"text/javascript\"> StackExchange.ready(function () { StackExchange.realtime.init('sockets.ny.stackexchange.com'); StackExchange.realtime.subscribeToInboxNotifications(); StackExchange.realtime.subscribeToReputationNotifications('135'); }); </script> <script type=\"text/javascript\"> StackExchange.init({\"stackAuthUrl\":\"https://stackauth.com\",\"serverTime\":1377686462,\"styleCode\":true,\"enableUserHovercards\":true,\"site\":{\"name\":\"Electrical Engineering Stack Exchange\",\"description\":\"Q&A for electronics and electrical engineering professionals, students, and enthusiasts\",\"isNoticesTabEnabled\":true,\"recaptchaPublicKey\":\"6LdsB7sSAAAAAAzjgEF_Hd8vXv-C42sa_KyofaGR\",\"enableSocialMediaInSharePopup\":true},\"user\":{\"fkey\":\"964caaf8350dc8ae69af722ba29b4a1d\",\"isAnonymous\":true}}); StackExchange.using.setCacheBreakers({\"js/prettify-full.js\":\"6c261bebf56a\",\"js/moderator.js\":\"ed7a8238b2f8\",\"js/full-anon.js\":\"5f9bf5810297\",\"js/full.js\":\"027ac5ea264e\",\"js/wmd.js\":\"cff10cca4fd9\",\"js/third-party/jquery.autocomplete.min.js\":\"e5f01e97f7c3\",\"js/mobile.js\":\"82a79dbb7259\",\"js/help.js\":\"6e6623243cf6\",\"js/tageditor.js\":\"450c9e8426fc\",\"js/tageditornew.js\":\"b6c68ad4c7dd\",\"js/inline-tag-editing.js\":\"8e84e8a137f7\",\"js/revisions.js\":\"d3e781ee5528\",\"js/review.js\":\"947758ba83ea\",\"js/tagsuggestions.js\":\"aa48ef6154df\",\"js/post-validation.js\":\"bb996020492a\",\"js/explore-qlist.js\":\"1c5bbd79b562\",\"js/events.js\":\"27a33f0b2cad\"}); StackExchange.using.setCacheBreakers({\"js/mathjax-editing.js\":\"6da1b6cfe19f\",\"js/external-editor.js\":\"51c0a8d46d29\"}); </script> <script type=\"text/javascript\"> StackExchange.using(\"gps\", function() { StackExchange.gps.init(true); }); </script> <script type=\"text/javascript\"> StackExchange.ready(function () { $('#nav-tour').click(function () { StackExchange.using(\"gps\", function() { StackExchange.gps.track(\"aboutpage.click\", { aboutclick_location: \"headermain\" }, true); }); }); }); </script> </head> <body class=\"questions-page\"> <noscript><div id=\"noscript-padding\"></div></noscript> <div id=\"notify-container\"></div> <div id=\"overlay-header\"></div> <div id=\"custom-header\"></div> <div class=\"container\"> <div id=\"header\" class=headeranon> <div id=\"portalLink\"> <a class=\"genu\" href=\"http://stackexchange.com\" onclick=\"StackExchange.ready(function(){genuwine.click();});return false;\">Stack Exchange</a> </div> <div id=\"topbar\"> <div id=\"hlinks\"> <span id=\"hlinks-user\"></span> <span id=\"hlinks-nav\"> <a href=\"/users/login?returnurl=%2fquestions%3fpage%3d2%26sort%3dnewest\">sign up</a> <span class=\"lsep\">|</span> <a href=\"/users/login?returnurl=%2fquestions%3fpage%3d2%26sort%3dnewest\">log in</a> <span class=\"lsep\">|</span> </span> <span id=\"hlinks-custom\"></span> </div> <div id=\"hsearch\"> <form id=\"search\" action=\"/search\" method=\"get\" autocomplete=\"off\"> <div> <input autocomplete=\"off\" name=\"q\" class=\"textbox\" placeholder=\"search\" tabindex=\"1\" type=\"text\" maxlength=\"240\" size=\"28\" value=\"\"> </div> </form> </div> </div> <br class=\"cbt\"> <div id=\"hlogo\"> <a href=\"/\"> Electrical Engineering </a> </div> <div id=\"hmenus\"> <div class=\"nav mainnavs mainnavsanon\"> <ul> <li class=\"youarehere\"><a id=\"nav-questions\" href=\"/questions\">Questions</a></li> <li><a id=\"nav-tags\" href=\"/tags\">Tags</a></li> <li><a id=\"nav-tour\" href=\"/about\">Tour</a></li> <li><a id=\"nav-users\" href=\"/users\">Users</a></li> </ul> </div> <div class=\"nav askquestion\"> <ul> <li> <a id=\"nav-askquestion\" href=\"/questions/ask\">Ask Question</a> </li> </ul> </div> </div> </div> <div id=\"content\"> <div id=\"mainbar\"> <div class=\"subheader\"> <h1 id=\"h-all-questions\">All Questions</h1> <div id=\"tabs\"> <a class=\"youarehere\" href=\"/questions?sort=newest\" title=\"the most recently asked questions\">newest</a> <a href=\"/questions?sort=featured\" title=\"questions with open bounties\"><span class='bounty-indicator-tab'>3</span>featured</a> <a href=\"/questions?sort=frequent\" title=\"questions with the most links\">frequent</a> <a href=\"/questions?sort=votes\" title=\"questions with the most votes\">votes</a> <a href=\"/questions?sort=active\" title=\"questions that have recent activity\">active</a> <a href=\"/questions?sort=unanswered\" title=\"questions that have no upvoted answers\">unanswered</a> </div> </div> <div id=\"questions\"> <div class=\"question-summary\" id=\"question-summary-80417\"> <div class=\"statscontainer\"> <div class=\"statsarrow\"></div> <div class=\"stats\"> <div class=\"vote\"> <div class=\"votes\"> <span class=\"vote-count-post \"><strong>1</strong></span> <div class=\"viewcount\">vote</div> </div> </div> <div class=\"status answered\"> <strong>2</strong>answers </div> </div> <div class=\"views \" title=\"65 views\"> 65 views </div> </div> <div class=\"summary\"> <h3><a href=\"/questions/80417/can-i-safely-enclose-battery-powered-electronics-in-an-antistatic-bag-to-protect\" class=\"question-hyperlink\">Can I safely enclose battery-powered electronics in an antistatic bag to protect it from static electricity?</a></h3> <div class=\"excerpt\"> I am building an enclosure for a Beaglebone and external circuit that I want to be able to wear, and therefore want to be lightweight and somewhat comfortable. I power the Beaglebone using a battery ... </div> <div class=\"tags t-shielding t-antistatic t-static\"> <a href=\"/questions/tagged/shielding\" class=\"post-tag\" title=\"show questions tagged 'shielding'\" rel=\"tag\">shielding</a> <a href=\"/questions/tagged/antistatic\" class=\"post-tag\" title=\"show questions tagged 'antistatic'\" rel=\"tag\">antistatic</a> <a href=\"/questions/tagged/static\" class=\"post-tag\" title=\"show questions tagged 'static'\" rel=\"tag\">static</a> </div> <div class=\"started fr\"> <div class=\"user-info \"> <div class=\"user-action-time\"> asked <span title=\"2013-08-27 22:47:03Z\" class=\"relativetime\">11 hours ago</span> </div> <div class=\"user-gravatar32\"> <a href=\"/users/19783/mokogobo\"><div class=\"\"><img src=\"https://www.gravatar.com/avatar/045025756373a85e8336c8126ee006c6?s=32&d=identicon&r=PG\" alt=\"\" width=\"32\" height=\"32\"></div></a> </div> <div class=\"user-details\"> <a href=\"/users/19783/mokogobo\">mokogobo</a><br> <span class=\"reputation-score\" title=\"reputation score\" dir=\"ltr\">31</span><span title=\"4 bronze badges\"><span class=\"badge3\"></span><span class=\"badgecount\">4</span></span> </div> </div> </div> </div> </div> <div class=\"question-summary\" id=\"question-summary-80412\"> <div class=\"statscontainer\"> <div class=\"statsarrow\"></div> <div class=\"stats\"> <div class=\"vote\"> <div class=\"votes\"> <span class=\"vote-count-post \"><strong>0</strong></span> <div class=\"viewcount\">votes</div> </div> </div> <div class=\"status answered\"> <strong>1</strong>answer </div> </div> <div class=\"views \" title=\"22 views\"> 22 views </div> </div> <div class=\"summary\"> <h3><a href=\"/questions/80412/how-to-overwrite-flash-memory-on-stm32l-series\" class=\"question-hyperlink\">How to overwrite flash memory on STM32L series</a></h3> <div class=\"excerpt\"> I am trying to write a known pattern (ie 0xFFFFFFFF or 0x00000000) on top of already written flash memory, to invalidate portions of it for a primitive file system. But it doesn't work for me on the ... </div> <div class=\"tags t-stm32 t-flash\"> <a href=\"/questions/tagged/stm32\" class=\"post-tag\" title=\"show questions tagged 'stm32'\" rel=\"tag\">stm32</a> <a href=\"/questions/tagged/flash\" class=\"post-tag\" title=\"show questions tagged 'flash'\" rel=\"tag\">flash</a> </div> <div class=\"started fr\"> <div class=\"user-info \"> <div class=\"user-action-time\"> asked <span title=\"2013-08-27 22:09:01Z\" class=\"relativetime\">12 hours ago</span> </div> <div class=\"user-gravatar32\"> <a href=\"/users/15757/mark-lakata\"><div class=\"\"><img src=\"https://www.gravatar.com/avatar/5fd80d98f96f9adbde7876cbda181715?s=32&d=identicon&r=PG\" alt=\"\" width=\"32\" height=\"32\"></div></a> </div> <div class=\"user-details\"> <a href=\"/users/15757/mark-lakata\">Mark Lakata</a><br> <span class=\"reputation-score\" title=\"reputation score\" dir=\"ltr\">111</span><span title=\"2 bronze badges\"><span class=\"badge3\"></span><span class=\"badgecount\">2</span></span> </div> </div> </div> </div> </div> <div class=\"question-summary\" id=\"question-summary-80407\"> <div class=\"statscontainer\"> <div class=\"statsarrow\"></div> <div class=\"stats\"> <div class=\"vote\"> <div class=\"votes\"> <span class=\"vote-count-post \"><strong>2</strong></span> <div class=\"viewcount\">votes</div> </div> </div> <div class=\"status answered\"> <strong>1</strong>answer </div> </div> <div class=\"views \" title=\"61 views\"> 61 views </div> </div> <div class=\"summary\"> <h3><a href=\"/questions/80407/about-power-supply-of-opertional-amplifier\" class=\"question-hyperlink\">about power supply of opertional amplifier</a></h3> <div class=\"excerpt\"> I am constructing an operational amplifier as shown in the following figure. I use a batter as supplier for the OP Amp and set it up as a non-inverting amp circuit. I saw that the output was clipped ... </div> <div class=\"tags t-op-amp\"> <a href=\"/questions/tagged/op-amp\" class=\"post-tag\" title=\"show questions tagged 'op-amp'\" rel=\"tag\">op-amp</a> </div> <div class=\"started fr\"> <div class=\"user-info \"> <div class=\"user-action-time\"> asked <span title=\"2013-08-27 21:49:14Z\" class=\"relativetime\">12 hours ago</span> </div> <div class=\"user-gravatar32\"> <a href=\"/users/17060/user1285419\"><div class=\"\"><img src=\"https://www.gravatar.com/avatar/08ee68b20a4eceff26f7eee99b708c08?s=32&d=identicon&r=PG\" alt=\"\" width=\"32\" height=\"32\"></div></a> </div> <div class=\"user-details\"> <a href=\"/users/17060/user1285419\">user1285419</a><br> <span class=\"reputation-score\" title=\"reputation score\" dir=\"ltr\">165</span><span title=\"5 bronze badges\"><span class=\"badge3\"></span><span class=\"badgecount\">5</span></span> </div> </div> </div> </div> </div> <div class=\"question-summary\" id=\"question-summary-80405\"> <div class=\"statscontainer\"> <div class=\"statsarrow\"></div> <div class=\"stats\"> <div class=\"vote\"> <div class=\"votes\"> <span class=\"vote-count-post \"><strong>4</strong></span> <div class=\"viewcount\">votes</div> </div> </div> <div class=\"status answered-accepted\"> <strong>2</strong>answers </div> </div> <div class=\"views \" title=\"64 views\"> 64 views </div> </div> <div class=\"summary\"> <h3><a href=\"/questions/80405/5v-regulator-power-dissipation\" class=\"question-hyperlink\">5V Regulator Power Dissipation</a></h3> <div class=\"excerpt\"> I am using a 5V regulator (LP2950) from ON Semiconductor. I am using this for USB power and I'm feeding in 9V from an adapter. USB requires maximum of 500mA right? So the maximum power dissipation in ... </div> <div class=\"tags t-voltage-regulator t-surface-mount t-heatsink t-5v t-power-dissipation\"> <a href=\"/questions/tagged/voltage-regulator\" class=\"post-tag\" title=\"show questions tagged 'voltage-regulator'\" rel=\"tag\">voltage-regulator</a> <a href=\"/questions/tagged/surface-mount\" class=\"post-tag\" title=\"show questions tagged 'surface-mount'\" rel=\"tag\">surface-mount</a> <a href=\"/questions/tagged/heatsink\" class=\"post-tag\" title=\"show questions tagged 'heatsink'\" rel=\"tag\">heatsink</a> <a href=\"/questions/tagged/5v\" class=\"post-tag\" title=\"show questions tagged '5v'\" rel=\"tag\">5v</a> <a href=\"/questions/tagged/power-dissipation\" class=\"post-tag\" title=\"show questions tagged 'power-dissipation'\" rel=\"tag\">power-dissipation</a> </div> <div class=\"started fr\"> <div class=\"user-info \"> <div class=\"user-action-time\"> asked <span title=\"2013-08-27 21:39:31Z\" class=\"relativetime\">13 hours ago</span> </div> <div class=\"user-gravatar32\"> <a href=\"/users/10082/david-norman\"><div class=\"\"><img src=\"https://www.gravatar.com/avatar/8b073417e471077280b3fc5ff2eaf1f7?s=32&d=identicon&r=PG\" alt=\"\" width=\"32\" height=\"32\"></div></a> </div> <div class=\"user-details\"> <a href=\"/users/10082/david-norman\">David Norman</a><br> <span class=\"reputation-score\" title=\"reputation score\" dir=\"ltr\">322</span><span title=\"3 silver badges\"><span class=\"badge2\"></span><span class=\"badgecount\">3</span></span><span title=\"10 bronze badges\"><span class=\"badge3\"></span><span class=\"badgecount\">10</span></span> </div> </div> </div> </div> </div> <div class=\"question-summary\" id=\"question-summary-80404\"> <div class=\"statscontainer\"> <div class=\"statsarrow\"></div> <div class=\"stats\"> <div class=\"vote\"> <div class=\"votes\"> <span class=\"vote-count-post \"><strong>0</strong></span> <div class=\"viewcount\">votes</div> </div> </div> <div class=\"status answered\"> <strong>1</strong>answer </div> </div> <div class=\"views \" title=\"44 views\"> 44 views </div> </div> <div class=\"summary\"> <h3><a href=\"/questions/80404/how-to-stop-two-dc-motors-simultaneously-using-limit-switches\" class=\"question-hyperlink\">How to stop two DC motors simultaneously using limit switches</a></h3> <div class=\"excerpt\"> I need some help - I'm building a machine but I'm not sure of the best way of doing it. I have three large wire spools. Two empty and one full. The full spool (approx. 500kg) is much larger than the ... </div> <div class=\"tags t-dc-motor t-switch-mode-power-supply t-servo t-plc t-toggle-switch\"> <a href=\"/questions/tagged/dc-motor\" class=\"post-tag\" title=\"show questions tagged 'dc-motor'\" rel=\"tag\">dc-motor</a> <a href=\"/questions/tagged/switch-mode-power-supply\" class=\"post-tag\" title=\"show questions tagged 'switch-mode-power-supply'\" rel=\"tag\">switch-mode-power-supply</a> <a href=\"/questions/tagged/servo\" class=\"post-tag\" title=\"show questions tagged 'servo'\" rel=\"tag\">servo</a> <a href=\"/questions/tagged/plc\" class=\"post-tag\" title=\"show questions tagged 'plc'\" rel=\"tag\">plc</a> <a href=\"/questions/tagged/toggle-switch\" class=\"post-tag\" title=\"show questions tagged 'toggle-switch'\" rel=\"tag\">toggle-switch</a> </div> <div class=\"started fr\"> <div class=\"user-info \"> <div class=\"user-action-time\"> asked <span title=\"2013-08-27 21:29:47Z\" class=\"relativetime\">13 hours ago</span> </div> <div class=\"user-gravatar32\"> <a href=\"/users/28090/golden-bucky\"><div class=\"\"><img src=\"https://www.gravatar.com/avatar/0d00cc71566104e18dc131bc7f5b4cf1?s=32&d=identicon&r=PG&f=1\" alt=\"\" width=\"32\" height=\"32\"></div></a> </div> <div class=\"user-details\"> <a href=\"/users/28090/golden-bucky\">Golden Bucky</a><br> <span class=\"reputation-score\" title=\"reputation score\" dir=\"ltr\">1</span> </div> </div> </div> </div> </div> <div class=\"question-summary\" id=\"question-summary-80396\"> <div class=\"statscontainer\"> <div class=\"statsarrow\"></div> <div class=\"stats\"> <div class=\"vote\"> <div class=\"votes\"> <span class=\"vote-count-post \"><strong>1</strong></span> <div class=\"viewcount\">vote</div> </div> </div> <div class=\"status answered\"> <strong>1</strong>answer </div> </div> <div class=\"views \" title=\"58 views\"> 58 views </div> </div> <div class=\"summary\"> <h3><a href=\"/questions/80396/logic-level-translator-caveats\" class=\"question-hyperlink\">Logic Level Translator caveats</a></h3> <div class=\"excerpt\"> I have a device that runs on 2.5Vcmos logic levels, there are about a half dozen ic's with a mixture of parallel and serial (TWI and I2C) signal lines. Rather than placing my own uC on the board I'd ... </div> <div class=\"tags t-level-translation\"> <a href=\"/questions/tagged/level-translation\" class=\"post-tag\" title=\"show questions tagged 'level-translation'\" rel=\"tag\">level-translation</a> </div> <div class=\"started fr\"> <div class=\"user-info \"> <div class=\"user-action-time\"> asked <span title=\"2013-08-27 20:45:03Z\" class=\"relativetime\">13 hours ago</span> </div> <div class=\"user-gravatar32\"> <a href=\"/users/1729/crasic\"><div class=\"\"><img src=\"https://www.gravatar.com/avatar/61084e40f265986dd41136b4f3dc028f?s=32&d=identicon&r=PG\" alt=\"\" width=\"32\" height=\"32\"></div></a> </div> <div class=\"user-details\"> <a href=\"/users/1729/crasic\">crasic</a><br> <span class=\"reputation-score\" title=\"reputation score\" dir=\"ltr\">643</span><span title=\"2 silver badges\"><span class=\"badge2\"></span><span class=\"badgecount\">2</span></span><span title=\"8 bronze badges\"><span class=\"badge3\"></span><span class=\"badgecount\">8</span></span> </div> </div> </div> </div> </div> <div class=\"question-summary\" id=\"question-summary-80393\"> <div class=\"statscontainer\"> <div class=\"statsarrow\"></div> <div class=\"stats\"> <div class=\"vote\"> <div class=\"votes\"> <span class=\"vote-count-post \"><strong>1</strong></span> <div class=\"viewcount\">vote</div> </div> </div> <div class=\"status answered\"> <strong>1</strong>answer </div> </div> <div class=\"views \" title=\"57 views\"> 57 views </div> </div> <div class=\"summary\"> <h3><a href=\"/questions/80393/microcontroller-newbe-here-led-color-pattern-controller-for-arcade-machine\" class=\"question-hyperlink\">Microcontroller Newbe here. LED color pattern controller for arcade machine [on hold]</a></h3> <div class=\"excerpt\"> I am building an arcade machine and I want to make a cool led light display for the marquee. You can see pictures of what I'm talking about here. I want to light up each one of those holes with ... </div> <div class=\"tags t-microcontroller t-led\"> <a href=\"/questions/tagged/microcontroller\" class=\"post-tag\" title=\"show questions tagged 'microcontroller'\" rel=\"tag\">microcontroller</a> <a href=\"/questions/tagged/led\" class=\"post-tag\" title=\"show questions tagged 'led'\" rel=\"tag\">led</a> </div> <div class=\"started fr\"> <div class=\"user-info \"> <div class=\"user-action-time\"> asked <span title=\"2013-08-27 20:34:56Z\" class=\"relativetime\">14 hours ago</span> </div> <div class=\"user-gravatar32\"> <a href=\"/users/28086/doug-steinberg\"><div class=\"\"><img src=\"https://www.gravatar.com/avatar/f8a5cf563e719e934263883978ab80f1?s=32&d=identicon&r=PG\" alt=\"\" width=\"32\" height=\"32\"></div></a> </div> <div class=\"user-details\"> <a href=\"/users/28086/doug-steinberg\">Doug Steinberg</a><br> <span class=\"reputation-score\" title=\"reputation score\" dir=\"ltr\">6</span><span title=\"1 bronze badge\"><span class=\"badge3\"></span><span class=\"badgecount\">1</span></span> </div> </div> </div> </div> </div> <div class=\"question-summary\" id=\"question-summary-80385\"> <div class=\"statscontainer\"> <div class=\"statsarrow\"></div> <div class=\"stats\"> <div class=\"vote\"> <div class=\"votes\"> <span class=\"vote-count-post \"><strong>1</strong></span> <div class=\"viewcount\">vote</div> </div> </div> <div class=\"status answered\"> <strong>2</strong>answers </div> </div> <div class=\"views \" title=\"69 views\"> 69 views </div> </div> <div class=\"summary\"> <h3><a href=\"/questions/80385/how-to-scale-dynamic-range-voltage-to-1-5-volt\" class=\"question-hyperlink\">how to scale dynamic range voltage to 1-5 volt</a></h3> <div class=\"excerpt\"> how can i make circuit that scale input voltage that have dynamic range to 1-5 volt output? the circuit will have Vref+ and Vref- as maximum and minimum for Vinput and then scale to 1-5 volt output ... </div> <div class=\"tags t-voltage t-amplifier\"> <a href=\"/questions/tagged/voltage\" class=\"post-tag\" title=\"show questions tagged 'voltage'\" rel=\"tag\">voltage</a> <a href=\"/questions/tagged/amplifier\" class=\"post-tag\" title=\"show questions tagged 'amplifier'\" rel=\"tag\">amplifier</a> </div> <div class=\"started fr\"> <div class=\"user-info \"> <div class=\"user-action-time\"> asked <span title=\"2013-08-27 19:30:33Z\" class=\"relativetime\">15 hours ago</span> </div> <div class=\"user-gravatar32\"> <a href=\"/users/28084/user28084\"><div class=\"\"><img src=\"https://www.gravatar.com/avatar/2cacd24f99b2bcbd8236d1ce8c3c559f?s=32&d=identicon&r=PG&f=1\" alt=\"\" width=\"32\" height=\"32\"></div></a> </div> <div class=\"user-details\"> <a href=\"/users/28084/user28084\">user28084</a><br> <span class=\"reputation-score\" title=\"reputation score\" dir=\"ltr\">9</span><span title=\"2 bronze badges\"><span class=\"badge3\"></span><span class=\"badgecount\">2</span></span> </div> </div> </div> </div> </div> <div class=\"question-summary\" id=\"question-summary-80383\"> <div class=\"statscontainer\"> <div class=\"statsarrow\"></div> <div class=\"stats\"> <div class=\"vote\"> <div class=\"votes\"> <span class=\"vote-count-post \"><strong>0</strong></span> <div class=\"viewcount\">votes</div> </div> </div> <div class=\"status answered-accepted\"> <strong>1</strong>answer </div> </div> <div class=\"views \" title=\"38 views\"> 38 views </div> </div> <div class=\"summary\"> <h3><a href=\"/questions/80383/is-it-the-frequency-that-determines-the-current-in-a-lc-tank-parallel-circuit\" class=\"question-hyperlink\">Is it the frequency that determines the current in a LC Tank Parallel Circuit?</a></h3> <div class=\"excerpt\"> Jump a head to the question if you aren't interested in the background of my project Background of my project I want to create objects of metal. So I need to be able to cast a metal. Aluminium seems ... </div> <div class=\"tags t-current t-frequency t-solenoid t-induction t-rlc\"> <a href=\"/questions/tagged/current\" class=\"post-tag\" title=\"show questions tagged 'current'\" rel=\"tag\">current</a> <a href=\"/questions/tagged/frequency\" class=\"post-tag\" title=\"show questions tagged 'frequency'\" rel=\"tag\">frequency</a> <a href=\"/questions/tagged/solenoid\" class=\"post-tag\" title=\"show questions tagged 'solenoid'\" rel=\"tag\">solenoid</a> <a href=\"/questions/tagged/induction\" class=\"post-tag\" title=\"show questions tagged 'induction'\" rel=\"tag\">induction</a> <a href=\"/questions/tagged/rlc\" class=\"post-tag\" title=\"show questions tagged 'rlc'\" rel=\"tag\">rlc</a> </div> <div class=\"started fr\"> <div class=\"user-info \"> <div class=\"user-action-time\"> asked <span title=\"2013-08-27 19:29:24Z\" class=\"relativetime\">15 hours ago</span> </div> <div class=\"user-gravatar32\"> <a href=\"/users/26135/mike-de-klerk\"><div class=\"\"><img src=\"https://www.gravatar.com/avatar/7c2d61f7fedb644912d1cef5ed0b250a?s=32&d=identicon&r=PG\" alt=\"\" width=\"32\" height=\"32\"></div></a> </div> <div class=\"user-details\"> <a href=\"/users/26135/mike-de-klerk\">Mike de Klerk</a><br> <span class=\"reputation-score\" title=\"reputation score\" dir=\"ltr\">183</span><span title=\"6 bronze badges\"><span class=\"badge3\"></span><span class=\"badgecount\">6</span></span> </div> </div> </div> </div> </div> <div class=\"question-summary\" id=\"question-summary-80378\"> <div class=\"statscontainer\"> <div class=\"statsarrow\"></div> <div class=\"stats\"> <div class=\"vote\"> <div class=\"votes\"> <span class=\"vote-count-post \"><strong>4</strong></span> <div class=\"viewcount\">votes</div> </div> </div> <div class=\"status answered-accepted\"> <strong>4</strong>answers </div> </div> <div class=\"views \" title=\"54 views\"> 54 views </div> </div> <div class=\"summary\"> <h3><a href=\"/questions/80378/replacing-resistors-with-equivalent-resistor\" class=\"question-hyperlink\">Replacing resistors with equivalent resistor</a></h3> <div class=\"excerpt\"> This is somewhat a homework assignment, but please bear with me. Given the following schematic, I want to know the overall resistance when measured from node A to node B. simulate this circuit ... </div> <div class=\"tags t-resistors t-resistance t-circuit-analysis\"> <a href=\"/questions/tagged/resistors\" class=\"post-tag\" title=\"show questions tagged 'resistors'\" rel=\"tag\">resistors</a> <a href=\"/questions/tagged/resistance\" class=\"post-tag\" title=\"show questions tagged 'resistance'\" rel=\"tag\">resistance</a> <a href=\"/questions/tagged/circuit-analysis\" class=\"post-tag\" title=\"show questions tagged 'circuit-analysis'\" rel=\"tag\">circuit-analysis</a> </div> <div class=\"started fr\"> <div class=\"user-info \"> <div class=\"user-action-time\"> asked <span title=\"2013-08-27 19:07:14Z\" class=\"relativetime\">15 hours ago</span> </div> <div class=\"user-gravatar32\"> <a href=\"/users/9913/nijansen\"><div class=\"\"><img src=\"https://www.gravatar.com/avatar/8250825c174a99613ffeec2ccc085bcf?s=32&d=identicon&r=PG\" alt=\"\" width=\"32\" height=\"32\"></div></a> </div> <div class=\"user-details\"> <a href=\"/users/9913/nijansen\">nijansen</a><br> <span class=\"reputation-score\" title=\"reputation score\" dir=\"ltr\">174</span><span title=\"8 bronze badges\"><span class=\"badge3\"></span><span class=\"badgecount\">8</span></span> </div> </div> </div> </div> </div> <div class=\"question-summary\" id=\"question-summary-80371\"> <div class=\"statscontainer\"> <div class=\"statsarrow\"></div> <div class=\"stats\"> <div class=\"vote\"> <div class=\"votes\"> <span class=\"vote-count-post \"><strong>2</strong></span> <div class=\"viewcount\">votes</div> </div> </div> <div class=\"status answered\"> <strong>2</strong>answers </div> </div> <div class=\"views \" title=\"32 views\"> 32 views </div> </div> <div class=\"summary\"> <h3><a href=\"/questions/80371/saturation-current-in-inductor-definition\" class=\"question-hyperlink\">Saturation current in inductor - Definition?</a></h3> <div class=\"excerpt\"> Can somebody explain me what actually is a saturation current of an inductor. You may consider one inductor too and explain the things. This is very much confusing for me. Somebody give me a clear cut ... </div> <div class=\"tags t-inductor\"> <a href=\"/questions/tagged/inductor\" class=\"post-tag\" title=\"show questions tagged 'inductor'\" rel=\"tag\">inductor</a> </div> <div class=\"started fr\"> <div class=\"user-info \"> <div class=\"user-action-time\"> asked <span title=\"2013-08-27 18:38:03Z\" class=\"relativetime\">16 hours ago</span> </div> <div class=\"user-gravatar32\"> <a href=\"/users/20352/durgaprasad\"><div class=\"gravatar-wrapper-32\"><img src=\"http://i.stack.imgur.com/iQDud.jpg?s=32&g=1\" alt=\"\"></div></a> </div> <div class=\"user-details\"> <a href=\"/users/20352/durgaprasad\">Durgaprasad</a><br> <span class=\"reputation-score\" title=\"reputation score\" dir=\"ltr\">339</span><span title=\"9 bronze badges\"><span class=\"badge3\"></span><span class=\"badgecount\">9</span></span> </div> </div> </div> </div> </div> <div class=\"question-summary\" id=\"question-summary-80370\"> <div class=\"statscontainer\"> <div class=\"statsarrow\"></div> <div class=\"stats\"> <div class=\"vote\"> <div class=\"votes\"> <span class=\"vote-count-post \"><strong>3</strong></span> <div class=\"viewcount\">votes</div> </div> </div> <div class=\"status answered\"> <strong>2</strong>answers </div> </div> <div class=\"views \" title=\"85 views\"> 85 views </div> </div> <div class=\"summary\"> <h3><a href=\"/questions/80370/is-it-possible-for-batteries-to-give-a-false-reading-of-being-charged-with-a-mul\" class=\"question-hyperlink\">Is it possible for batteries to give a false reading of being charged with a multimeter?</a></h3> <div class=\"excerpt\"> I bought a Stanley SL5W09L spotlight about four years ago and it has performed wonderfully ever since. Recently however it has stopped working. I can plug it in, and the charge light will come on ... </div> <div class=\"tags t-batteries\"> <a href=\"/questions/tagged/batteries\" class=\"post-tag\" title=\"show questions tagged 'batteries'\" rel=\"tag\">batteries</a> </div> <div class=\"started fr\"> <div class=\"user-info \"> <div class=\"user-action-time\"> asked <span title=\"2013-08-27 18:36:29Z\" class=\"relativetime\">16 hours ago</span> </div> <div class=\"user-gravatar32\"> <a href=\"/users/24413/steve-french\"><div class=\"\"><img src=\"https://www.gravatar.com/avatar/ef46e9c26326bd9d82479c7daf4155a3?s=32&d=identicon&r=PG\" alt=\"\" width=\"32\" height=\"32\"></div></a> </div> <div class=\"user-details\"> <a href=\"/users/24413/steve-french\">Steve French</a><br> <span class=\"reputation-score\" title=\"reputation score\" dir=\"ltr\">119</span><span title=\"1 bronze badge\"><span class=\"badge3\"></span><span class=\"badgecount\">1</span></span> </div> </div> </div> </div> </div> <div class=\"question-summary\" id=\"question-summary-80366\"> <div class=\"statscontainer\"> <div class=\"statsarrow\"></div> <div class=\"stats\"> <div class=\"vote\"> <div class=\"votes\"> <span class=\"vote-count-post \"><strong>0</strong></span> <div class=\"viewcount\">votes</div> </div> </div> <div class=\"status answered\"> <strong>1</strong>answer </div> </div> <div class=\"views \" title=\"37 views\"> 37 views </div> </div> <div class=\"summary\"> <h3><a href=\"/questions/80366/arduino-accessing-extra-analog-pins-on-32-pin-smt-package\" class=\"question-hyperlink\">Arduino - accessing extra analog pins on 32-pin SMT package</a></h3> <div class=\"excerpt\"> I've got a 32-pin ATMega328 on a breadboard. I have its analog pin #6 as an input pin from another IC on my board. The IC sends data to this analog pin. Now, the ATMega328 DIP package (used on the ... </div> <div class=\"tags t-arduino\"> <a href=\"/questions/tagged/arduino\" class=\"post-tag\" title=\"show questions tagged 'arduino'\" rel=\"tag\">arduino</a> </div> <div class=\"started fr\"> <div class=\"user-info \"> <div class=\"user-action-time\"> asked <span title=\"2013-08-27 18:07:58Z\" class=\"relativetime\">16 hours ago</span> </div> <div class=\"user-gravatar32\"> <a href=\"/users/17082/ryan-tuck\"><div class=\"\"><img src=\"https://www.gravatar.com/avatar/57bb887b039eb0ca9f976210fe821a2a?s=32&d=identicon&r=PG\" alt=\"\" width=\"32\" height=\"32\"></div></a> </div> <div class=\"user-details\"> <a href=\"/users/17082/ryan-tuck\">Ryan Tuck</a><br> <span class=\"reputation-score\" title=\"reputation score\" dir=\"ltr\">114</span><span title=\"5 bronze badges\"><span class=\"badge3\"></span><span class=\"badgecount\">5</span></span> </div> </div> </div> </div> </div> <div class=\"question-summary\" id=\"question-summary-80365\"> <div class=\"statscontainer\"> <div class=\"statsarrow\"></div> <div class=\"stats\"> <div class=\"vote\"> <div class=\"votes\"> <span class=\"vote-count-post \"><strong>6</strong></span> <div class=\"viewcount\">votes</div> </div> </div> <div class=\"status answered-accepted\"> <strong>4</strong>answers </div> </div> <div class=\"views \" title=\"88 views\"> 88 views </div> </div> <div class=\"summary\"> <h3><a href=\"/questions/80365/capacitor-inrush-current\" class=\"question-hyperlink\">Capacitor Inrush Current</a></h3> <div class=\"excerpt\"> I have to filter a power control circuit and as usual I am using lots of capacitors in parallel. Some of these capacitors are Tantalum or Aluminium Polymer types, with ripple current ratings of 3 amps ... </div> <div class=\"tags t-capacitor t-inrush-current\"> <a href=\"/questions/tagged/capacitor\" class=\"post-tag\" title=\"show questions tagged 'capacitor'\" rel=\"tag\">capacitor</a> <a href=\"/questions/tagged/inrush-current\" class=\"post-tag\" title=\"show questions tagged 'inrush-current'\" rel=\"tag\">inrush-current</a> </div> <div class=\"started fr\"> <div class=\"user-info user-hover\"> <div class=\"user-action-time\"> asked <span title=\"2013-08-27 18:04:39Z\" class=\"relativetime\">16 hours ago</span> </div> <div class=\"user-gravatar32\"> <a href=\"/users/15955/mfeinstein\"><div class=\"\"><img src=\"https://www.gravatar.com/avatar/86b9f964b2a1d7cc66a78a6199801f71?s=32&d=identicon&r=PG\" alt=\"\" width=\"32\" height=\"32\"></div></a> </div> <div class=\"user-details\"> <a href=\"/users/15955/mfeinstein\">mFeinstein</a><br> <span class=\"reputation-score\" title=\"reputation score\" dir=\"ltr\">1,006</span><span title=\"11 bronze badges\"><span class=\"badge3\"></span><span class=\"badgecount\">11</span></span> </div> </div> </div> </div> </div> <div class=\"question-summary\" id=\"question-summary-80360\"> <div class=\"statscontainer\"> <div class=\"statsarrow\"></div> <div class=\"stats\"> <div class=\"vote\"> <div class=\"votes\"> <span class=\"vote-count-post \"><strong>0</strong></span> <div class=\"viewcount\">votes</div> </div> </div> <div class=\"status answered\"> <strong>1</strong>answer </div> </div> <div class=\"views \" title=\"28 views\"> 28 views </div> </div> <div class=\"summary\"> <h3><a href=\"/questions/80360/designing-adc-driver-circuit-using-ltc6406\" class=\"question-hyperlink\">Designing ADC driver circuit using LTC6406</a></h3> <div class=\"excerpt\"> I am designing the front end(single ended to differential) for the ADC using LTC6406 to interface with the 20MSPS ADC. My input frequency is 140 MHz. Simulation Sch is shown below: L1, L2 and C1 are ... </div> <div class=\"tags t-circuit t-adc\"> <a href=\"/questions/tagged/circuit\" class=\"post-tag\" title=\"show questions tagged 'circuit'\" rel=\"tag\">circuit</a> <a href=\"/questions/tagged/adc\" class=\"post-tag\" title=\"show questions tagged 'adc'\" rel=\"tag\">adc</a> </div> <div class=\"started fr\"> <div class=\"user-info \"> <div class=\"user-action-time\"> asked <span title=\"2013-08-27 17:36:42Z\" class=\"relativetime\">17 hours ago</span> </div> <div class=\"user-gravatar32\"> <a href=\"/users/25017/anand-kumar-rai\"><div class=\"gravatar-wrapper-32\"><img src=\"http://i.stack.imgur.com/v6adE.jpg?s=32&g=1\" alt=\"\"></div></a> </div> <div class=\"user-details\"> <a href=\"/users/25017/anand-kumar-rai\">Anand Kumar Rai</a><br> <span class=\"reputation-score\" title=\"reputation score\" dir=\"ltr\">183</span><span title=\"1 silver badge\"><span class=\"badge2\"></span><span class=\"badgecount\">1</span></span><span title=\"10 bronze badges\"><span class=\"badge3\"></span><span class=\"badgecount\">10</span></span> </div> </div> </div> </div> </div> </div> <br class=\"cbt\"> <div class=\"page-sizer fr\"> <a href=\"/questions?pagesize=15&amp;sort=newest\" title=\"show 15 items per page\" class=\"page-numbers current\">15</a> <a href=\"/questions?pagesize=30&amp;sort=newest\" title=\"show 30 items per page\" class=\"page-numbers \">30</a> <a href=\"/questions?pagesize=50&amp;sort=newest\" title=\"show 50 items per page\" class=\"page-numbers \">50</a> <span class=\"page-numbers desc\">per page</span> </div> <div class=\"pager fl\" > <a href=\"/questions?page=1&amp;sort=newest\" title=\"go to page 1\" rel=\"prev\"><span class=\"page-numbers prev\">prev </span></a> <a href=\"/questions?page=1&amp;sort=newest\" title=\"go to page 1\"><span class=\"page-numbers\">1</span></a> <span class=\"page-numbers current\">2</span> <a href=\"/questions?page=3&amp;sort=newest\" title=\"go to page 3\"><span class=\"page-numbers\">3</span></a> <a href=\"/questions?page=4&amp;sort=newest\" title=\"go to page 4\"><span class=\"page-numbers\">4</span></a> <a href=\"/questions?page=5&amp;sort=newest\" title=\"go to page 5\"><span class=\"page-numbers\">5</span></a> <span class=\"page-numbers dots\">&hellip;</span> <a href=\"/questions?page=1340&amp;sort=newest\" title=\"go to page 1340\"><span class=\"page-numbers\">1340</span></a> <a href=\"/questions?page=3&amp;sort=newest\" title=\"go to page 3\" rel=\"next\"><span class=\"page-numbers next\"> next</span></a> </div> </div> <div id=\"sidebar\"> <div class=\"module\" id=\"questions-count\"> <div class=\"summarycount al\">20,098</div> <p>questions</p> </div> <div class=\"module\" id=\"related-tags\"> <h4 id=\"h-related-tags\">Related Tags</h4> <a href=\"/questions/tagged/arduino\" class=\"post-tag\" title=\"show questions tagged 'arduino'\" rel=\"tag\">arduino</a>&nbsp;<span class=\"item-multiplier\"><span class=\"item-multiplier-x\">&times;</span>&nbsp;<span class=\"item-multiplier-count\">2030</span></span><br> <a href=\"/questions/tagged/microcontroller\" class=\"post-tag\" title=\"show questions tagged 'microcontroller'\" rel=\"tag\">microcontroller</a>&nbsp;<span class=\"item-multiplier\"><span class=\"item-multiplier-x\">&times;</span>&nbsp;<span class=\"item-multiplier-count\">1432</span></span><br> <a href=\"/questions/tagged/power-supply\" class=\"post-tag\" title=\"show questions tagged 'power-supply'\" rel=\"tag\">power-supply</a>&nbsp;<span class=\"item-multiplier\"><span class=\"item-multiplier-x\">&times;</span>&nbsp;<span class=\"item-multiplier-count\">899</span></span><br> <a href=\"/questions/tagged/led\" class=\"post-tag\" title=\"show questions tagged 'led'\" rel=\"tag\">led</a>&nbsp;<span class=\"item-multiplier\"><span class=\"item-multiplier-x\">&times;</span>&nbsp;<span class=\"item-multiplier-count\">789</span></span><br> <a href=\"/questions/tagged/pic\" class=\"post-tag\" title=\"show questions tagged 'pic'\" rel=\"tag\">pic</a>&nbsp;<span class=\"item-multiplier\"><span class=\"item-multiplier-x\">&times;</span>&nbsp;<span class=\"item-multiplier-count\">735</span></span><br> <a href=\"/questions/tagged/power\" class=\"post-tag\" title=\"show questions tagged 'power'\" rel=\"tag\">power</a>&nbsp;<span class=\"item-multiplier\"><span class=\"item-multiplier-x\">&times;</span>&nbsp;<span class=\"item-multiplier-count\">730</span></span><br> <a href=\"/questions/tagged/voltage\" class=\"post-tag\" title=\"show questions tagged 'voltage'\" rel=\"tag\">voltage</a>&nbsp;<span class=\"item-multiplier\"><span class=\"item-multiplier-x\">&times;</span>&nbsp;<span class=\"item-multiplier-count\">608</span></span><br> <a href=\"/questions/tagged/batteries\" class=\"post-tag\" title=\"show questions tagged 'batteries'\" rel=\"tag\">batteries</a>&nbsp;<span class=\"item-multiplier\"><span class=\"item-multiplier-x\">&times;</span>&nbsp;<span class=\"item-multiplier-count\">593</span></span><br> <a href=\"/questions/tagged/transistors\" class=\"post-tag\" title=\"show questions tagged 'transistors'\" rel=\"tag\">transistors</a>&nbsp;<span class=\"item-multiplier\"><span class=\"item-multiplier-x\">&times;</span>&nbsp;<span class=\"item-multiplier-count\">577</span></span><br> <a href=\"/questions/tagged/pcb\" class=\"post-tag\" title=\"show questions tagged 'pcb'\" rel=\"tag\">pcb</a>&nbsp;<span class=\"item-multiplier\"><span class=\"item-multiplier-x\">&times;</span>&nbsp;<span class=\"item-multiplier-count\">570</span></span><br> <a href=\"/questions/tagged/capacitor\" class=\"post-tag\" title=\"show questions tagged 'capacitor'\" rel=\"tag\">capacitor</a>&nbsp;<span class=\"item-multiplier\"><span class=\"item-multiplier-x\">&times;</span>&nbsp;<span class=\"item-multiplier-count\">564</span></span><br> <a href=\"/questions/tagged/usb\" class=\"post-tag\" title=\"show questions tagged 'usb'\" rel=\"tag\">usb</a>&nbsp;<span class=\"item-multiplier\"><span class=\"item-multiplier-x\">&times;</span>&nbsp;<span class=\"item-multiplier-count\">538</span></span><br> <a href=\"/questions/tagged/digital-logic\" class=\"post-tag\" title=\"show questions tagged 'digital-logic'\" rel=\"tag\">digital-logic</a>&nbsp;<span class=\"item-multiplier\"><span class=\"item-multiplier-x\">&times;</span>&nbsp;<span class=\"item-multiplier-count\">522</span></span><br> <a href=\"/questions/tagged/sensor\" class=\"post-tag\" title=\"show questions tagged 'sensor'\" rel=\"tag\">sensor</a>&nbsp;<span class=\"item-multiplier\"><span class=\"item-multiplier-x\">&times;</span>&nbsp;<span class=\"item-multiplier-count\">500</span></span><br> <a href=\"/questions/tagged/avr\" class=\"post-tag\" title=\"show questions tagged 'avr'\" rel=\"tag\">avr</a>&nbsp;<span class=\"item-multiplier\"><span class=\"item-multiplier-x\">&times;</span>&nbsp;<span class=\"item-multiplier-count\">493</span></span><br> <a href=\"/questions/tagged/op-amp\" class=\"post-tag\" title=\"show questions tagged 'op-amp'\" rel=\"tag\">op-amp</a>&nbsp;<span class=\"item-multiplier\"><span class=\"item-multiplier-x\">&times;</span>&nbsp;<span class=\"item-multiplier-count\">447</span></span><br> <a href=\"/questions/tagged/current\" class=\"post-tag\" title=\"show questions tagged 'current'\" rel=\"tag\">current</a>&nbsp;<span class=\"item-multiplier\"><span class=\"item-multiplier-x\">&times;</span>&nbsp;<span class=\"item-multiplier-count\">436</span></span><br> <a href=\"/questions/tagged/fpga\" class=\"post-tag\" title=\"show questions tagged 'fpga'\" rel=\"tag\">fpga</a>&nbsp;<span class=\"item-multiplier\"><span class=\"item-multiplier-x\">&times;</span>&nbsp;<span class=\"item-multiplier-count\">431</span></span><br> <a href=\"/questions/tagged/circuit\" class=\"post-tag\" title=\"show questions tagged 'circuit'\" rel=\"tag\">circuit</a>&nbsp;<span class=\"item-multiplier\"><span class=\"item-multiplier-x\">&times;</span>&nbsp;<span class=\"item-multiplier-count\">423</span></span><br> <a href=\"/questions/tagged/resistors\" class=\"post-tag\" title=\"show questions tagged 'resistors'\" rel=\"tag\">resistors</a>&nbsp;<span class=\"item-multiplier\"><span class=\"item-multiplier-x\">&times;</span>&nbsp;<span class=\"item-multiplier-count\">394</span></span><br> <a href=\"/questions/tagged/audio\" class=\"post-tag\" title=\"show questions tagged 'audio'\" rel=\"tag\">audio</a>&nbsp;<span class=\"item-multiplier\"><span class=\"item-multiplier-x\">&times;</span>&nbsp;<span class=\"item-multiplier-count\">394</span></span><br> <a href=\"/questions/tagged/motor\" class=\"post-tag\" title=\"show questions tagged 'motor'\" rel=\"tag\">motor</a>&nbsp;<span class=\"item-multiplier\"><span class=\"item-multiplier-x\">&times;</span>&nbsp;<span class=\"item-multiplier-count\">384</span></span><br> <a href=\"/questions/tagged/voltage-regulator\" class=\"post-tag\" title=\"show questions tagged 'voltage-regulator'\" rel=\"tag\">voltage-regulator</a>&nbsp;<span class=\"item-multiplier\"><span class=\"item-multiplier-x\">&times;</span>&nbsp;<span class=\"item-multiplier-count\">377</span></span><br> <a href=\"/questions/tagged/mosfet\" class=\"post-tag\" title=\"show questions tagged 'mosfet'\" rel=\"tag\">mosfet</a>&nbsp;<span class=\"item-multiplier\"><span class=\"item-multiplier-x\">&times;</span>&nbsp;<span class=\"item-multiplier-count\">374</span></span><br> <a href=\"/questions/tagged/switches\" class=\"post-tag\" title=\"show questions tagged 'switches'\" rel=\"tag\">switches</a>&nbsp;<span class=\"item-multiplier\"><span class=\"item-multiplier-x\">&times;</span>&nbsp;<span class=\"item-multiplier-count\">344</span></span><br> </div> </div> </div> </div> <div id=\"footer\" class=\"categories\"> <div class=\"footerwrap\"> <div id=\"footer-menu\"> <div class=\"top-footer-links\"> <a href=\"/about\">about</a> <a href=\"/help\">help</a> <a href=\"/help/badges\">badges</a> <a href=\"http://blog.stackexchange.com?blb=1\">blog</a> <a href=\"http://chat.stackexchange.com\">chat</a> <a href=\"http://data.stackexchange.com\">data</a> <a href=\"http://stackexchange.com/legal\">legal</a> <a href=\"http://stackexchange.com/legal/privacy-policy\">privacy policy</a> <a href=\"http://stackexchange.com/about/hiring\">jobs</a> <a href=\"http://stackexchange.com/about/contact\">advertising info</a> <a onclick='StackExchange.switchMobile(\"on\", \"/questions?page=2&amp;sort=newest\")'>mobile</a> <b><a href=\"/contact\">contact us</a></b> <b><a href=\"http://meta.electronics.stackexchange.com\">feedback</a></b> </div> <div id=\"footer-sites\"> <table> <tr> <th colspan=3> Technology </th> <th > Life / Arts </th> <th > Culture / Recreation </th> <th > Science </th> <th > Other </th> </tr> <tr> <td> <ol> <li><a href=\"http://stackoverflow.com\" title=\"professional and enthusiast programmers\">Stack Overflow</a></li> <li><a href=\"http://serverfault.com\" title=\"professional system and network administrators\">Server Fault</a></li> <li><a href=\"http://superuser.com\" title=\"computer enthusiasts and power users\">Super User</a></li> <li><a href=\"http://webapps.stackexchange.com\" title=\"power users of web applications\">Web Applications</a></li> <li><a href=\"http://askubuntu.com\" title=\"Ubuntu users and developers\">Ask Ubuntu</a></li> <li><a href=\"http://webmasters.stackexchange.com\" title=\"pro webmasters\">Webmasters</a></li> <li><a href=\"http://gamedev.stackexchange.com\" title=\"professional and independent game developers\">Game Development</a></li> <li><a href=\"http://tex.stackexchange.com\" title=\"users of TeX, LaTeX, ConTeXt, and related typesetting systems\">TeX - LaTeX</a></li> </ol></td><td><ol> <li><a href=\"http://programmers.stackexchange.com\" title=\"professional programmers interested in conceptual questions about software development\">Programmers</a></li> <li><a href=\"http://unix.stackexchange.com\" title=\"users of Linux, FreeBSD and other Un*x-like operating systems.\">Unix &amp; Linux</a></li> <li><a href=\"http://apple.stackexchange.com\" title=\"power users of Apple hardware and software\">Ask Different (Apple)</a></li> <li><a href=\"http://wordpress.stackexchange.com\" title=\"WordPress developers and administrators\">WordPress Answers</a></li> <li><a href=\"http://gis.stackexchange.com\" title=\"cartographers, geographers and GIS professionals\">Geographic Information Systems</a></li> <li><a href=\"http://electronics.stackexchange.com\" title=\"electronics and electrical engineering professionals, students, and enthusiasts\">Electrical Engineering</a></li> <li><a href=\"http://android.stackexchange.com\" title=\"enthusiasts and power users of the Android operating system\">Android Enthusiasts</a></li> <li><a href=\"http://security.stackexchange.com\" title=\"IT security professionals\">IT Security</a></li> </ol></td><td><ol> <li><a href=\"http://dba.stackexchange.com\" title=\"database professionals who wish to improve their database skills and learn from others in the community\">Database Administrators</a></li> <li><a href=\"http://drupal.stackexchange.com\" title=\"Drupal developers and administrators\">Drupal Answers</a></li> <li><a href=\"http://sharepoint.stackexchange.com\" title=\"SharePoint enthusiasts\">SharePoint</a></li> <li><a href=\"http://ux.stackexchange.com\" title=\"user experience researchers and experts\">User Experience</a></li> <li><a href=\"http://mathematica.stackexchange.com\" title=\"users of Mathematica\">Mathematica</a></li> <li> <a href=\"http://stackexchange.com/sites#technology\" class=\"more\"> more (13) </a> </li> </ol> </td> <td> <ol> <li><a href=\"http://photo.stackexchange.com\" title=\"professional, enthusiast and amateur photographers\">Photography</a></li> <li><a href=\"http://scifi.stackexchange.com\" title=\"science fiction and fantasy enthusiasts\">Science Fiction &amp; Fantasy</a></li> <li><a href=\"http://cooking.stackexchange.com\" title=\"professional and amateur chefs\">Seasoned Advice (cooking)</a></li> <li><a href=\"http://diy.stackexchange.com\" title=\"contractors and serious DIYers\">Home Improvement</a></li> <li> <a href=\"http://stackexchange.com/sites#lifearts\" class=\"more\"> more (13) </a> </li> </ol> </td> <td> <ol> <li><a href=\"http://english.stackexchange.com\" title=\"linguists, etymologists, and serious English language enthusiasts\">English Language &amp; Usage</a></li> <li><a href=\"http://skeptics.stackexchange.com\" title=\"scientific skepticism\">Skeptics</a></li> <li><a href=\"http://judaism.stackexchange.com\" title=\"those who base their lives on Jewish law and tradition and anyone interested in learning more\">Mi Yodeya (Judaism)</a></li> <li><a href=\"http://travel.stackexchange.com\" title=\"road warriors and seasoned travelers\">Travel</a></li> <li><a href=\"http://christianity.stackexchange.com\" title=\"committed Christians, experts in Christianity and those interested in learning more\">Christianity</a></li> <li><a href=\"http://gaming.stackexchange.com\" title=\"passionate videogamers on all platforms\">Arqade (gaming)</a></li> <li><a href=\"http://bicycles.stackexchange.com\" title=\"people who build and repair bicycles, people who train cycling, or commute on bicycles\">Bicycles</a></li> <li><a href=\"http://rpg.stackexchange.com\" title=\"gamemasters and players of tabletop, paper-and-pencil role-playing games\">Role-playing Games</a></li> <li> <a href=\"http://stackexchange.com/sites#culturerecreation\" class=\"more\"> more (21) </a> </li> </ol> </td> <td> <ol> <li><a href=\"http://math.stackexchange.com\" title=\"people studying math at any level and professionals in related fields\">Mathematics</a></li> <li><a href=\"http://stats.stackexchange.com\" title=\"statisticians, data analysts, data miners and data visualization experts\">Cross Validated (stats)</a></li> <li><a href=\"http://cstheory.stackexchange.com\" title=\"theoretical computer scientists and researchers in related fields\">Theoretical Computer Science</a></li> <li><a href=\"http://physics.stackexchange.com\" title=\"active researchers, academics and students of physics\">Physics</a></li> <li><a href=\"http://mathoverflow.net\" title=\"professional mathematicians\">MathOverflow</a></li> <li> <a href=\"http://stackexchange.com/sites#science\" class=\"more\"> more (7) </a> </li> </ol> </td> <td> <ol> <li><a href=\"http://stackapps.com\" title=\"apps, scripts, and development with the Stack Exchange API\">Stack Apps</a></li> <li><a href=\"http://meta.stackoverflow.com\" title=\"meta-discussion of the Stack Exchange family of Q&amp;A websites\">Meta Stack Overflow</a></li> <li><a href=\"http://area51.stackexchange.com\" title=\"proposing new sites in the Stack Exchange network\">Area 51</a></li> <li><a href=\"http://careers.stackoverflow.com\">Stack Overflow Careers</a></li> </ol> </td> </tr> </table> </div> </div> <div id=\"copyright\"> site design / logo &copy; 2013 stack exchange inc; user contributions licensed under <a href=\"http://creativecommons.org/licenses/by-sa/3.0/\" rel=\"license\">cc-wiki</a> with <a href=\"http://blog.stackoverflow.com/2009/06/attribution-required/\" rel=\"license\">attribution required</a> </div> <div id=\"footer-flair\"> <a href=\"http://creativecommons.org/licenses/by-sa/3.0/\" class=\"cc-wiki-link\"></a> </div> <div id=\"svnrev\"> rev 2013.8.28.977 </div> </div> </div> <noscript> <div id=\"noscript-warning\">Electrical Engineering Stack Exchange works best with JavaScript enabled<img src=\"http://pixel.quantserve.com/pixel/p-c1rF4kxgLUzNc.gif\" alt=\"\" class=\"dno\"></div> </noscript> <script type=\"text/javascript\">var _gaq=_gaq||[];_gaq.push(['_setAccount','UA-5620270-24']); _gaq.push(['_setDomainName','.stackexchange.com']); _gaq.push(['_trackPageview']); var _qevents = _qevents || []; (function () { var ssl='https:'==document.location.protocol, s=document.getElementsByTagName('script')[0], ga=document.createElement('script'); ga.type='text/javascript'; ga.async=true; ga.src=(ssl?'https://ssl':'http://www')+'.google-analytics.com/ga.js'; s.parentNode.insertBefore(ga,s); var sc=document.createElement('script'); sc.type='text/javascript'; sc.async=true; sc.src=(ssl?'https://secure':'http://edge')+'.quantserve.com/quant.js'; s.parentNode.insertBefore(sc,s); })(); _qevents.push({ qacct: \"p-c1rF4kxgLUzNc\" }); </script> </body> </html>"; // result will be an iterator over tuples containing the start and end indices for each match in the string let result = regex.captures_iter(string); for mat in result { println!("{:?}", mat); } }

Please keep in mind that these code samples are automatically generated and are not guaranteed to work. If you find any syntax errors, feel free to submit a bug report. For a full regex reference for Rust, please visit: https://docs.rs/regex/latest/regex/