|
| 1 | + |
| 2 | +var languagesLoaded = false; |
| 3 | + |
| 4 | +function updateLanguagePython(regularExpression, text) { |
| 5 | + var regex = JSON.stringify(regularExpression); |
| 6 | + var text = JSON.stringify(text); |
| 7 | + return "import re\nregex = " + regex + "\ntext = " + text + "\nprint(re.findall(regex, text))"; |
| 8 | +} |
| 9 | + |
| 10 | +function updateLanguageJavaScript(regularExpression, text) { |
| 11 | + var regex = JSON.stringify(regularExpression); |
| 12 | + var text = JSON.stringify(text); |
| 13 | + return "regex = " + regex + ";\ntext = " + text + ";\nalert(RegExp(regex).exec(text))"; |
| 14 | +} |
| 15 | + |
| 16 | +updateLanguages = [ |
| 17 | + {"name": "Python", "update": updateLanguagePython}, |
| 18 | + {"name": "JavaScript", "update": updateLanguageJavaScript}, |
| 19 | +] |
| 20 | + |
| 21 | +function watchLanguageField(languageField, textElement, regex) { |
| 22 | + var textareas = []; |
| 23 | + for (var i = 0; i < updateLanguages.length; i++) { |
| 24 | + var lang = updateLanguages[i]; |
| 25 | + var div = document.createElement("div"); |
| 26 | + languageField.appendChild(div); |
| 27 | + div.classList.add("programming-language") |
| 28 | + var heading = document.createElement("h2"); |
| 29 | + heading.innerText = lang.name; |
| 30 | + div.appendChild(heading); |
| 31 | + var textarea = document.createElement("textarea"); |
| 32 | + div.appendChild(textarea); |
| 33 | + textareas.push(textarea); |
| 34 | + } |
| 35 | + function update() { |
| 36 | + for (var i = 0; i < updateLanguages.length; i++) { |
| 37 | + var textarea = textareas[i]; |
| 38 | + var programUpdate = updateLanguages[i].update; |
| 39 | + textarea.value = programUpdate(regex.value, textElement.value); |
| 40 | + } |
| 41 | + } |
| 42 | + regex.onkeyup = update; |
| 43 | + textElement.onkeyup = update; |
| 44 | + update(); |
| 45 | +} |
| 46 | + |
| 47 | +function getLanguageElement(languageField, index, name) { |
| 48 | + return getPlayfieldElement(languageField, index, name); |
| 49 | +} |
| 50 | + |
| 51 | +function loadLanguages(){ |
| 52 | + if (languagesLoaded) { |
| 53 | + return; |
| 54 | + } |
| 55 | + var languageFields = document.getElementsByClassName("language"); |
| 56 | + for (var i = 0; i < languageFields.length; i += 1) { |
| 57 | + var languageField = languageFields[i]; |
| 58 | + var regex = getLanguageElement(languageField, i, "regex"); |
| 59 | + var textElement = getPlayfieldElement(languageField, i, "text"); |
| 60 | + watchLanguageField(languageField, textElement, regex); |
| 61 | + if (i == 0) { |
| 62 | + regex.focus(); |
| 63 | + } |
| 64 | + } |
| 65 | + languagesLoaded = true; |
| 66 | +} |
| 67 | +window.addEventListener("load", loadLanguages); |
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