使用JavaScript正则表达式验证/** regexp-validate-data.js **/function anyChar(str) {/* Verify at leas
使用JavaScript正则表达式验证
/** regexp-validate-data.js **/function anyChar(str) { /* Verify at least one nonspace character * or string of characters * Return boolean */ return /\S+/.test(str);}//eof - anyCharfunction anyWord(str) { /* Verify at least one word character * or string of word characters * a word character is alpha numeric or underscore * Return boolean */ return /\w+/.test(str);}//eof - anyWordfunction any3letters(str) { /* At least 3 consecutive letters anywhere in str * case insensitive * Return boolean */ return /[a-z]{3}/i.test(str);}//eof - any3lettersfunction any10Char(str) { /* Verify exactly 10 nonspace character * Return string */ if (/^\S{10}$/.test(str)) return "Valid"; else if (/\s/.test(str)) return "Invalid space"; else if (/^\S{11,}$/.test(str)) return "Too long!"; else return "Too short!";}//eof - any10Charfunction anyVar10(str) { /* Verify valid JavaScript variable name * of exactly 10 characters * Return string */ if (/^[a-z$_]\w{9}$/i.test(str)) return "Valid"; else if (/^[^a-z$_]/i.test(str)) return "First Char Not Alpha!"; else if (/^[a-z$_]\W/i.test(str)) return "Invalid Character!" else if (/^\w{11,}$/.test(str)) return "Too long!"; else return "Too short!";}//eof - anyVar10function anyClass5(str) { /* Verify valid CSS class name of at least 5 characters * Return string */ if (/^[a-z][a-z0-9\-]{4,}$/i.test(str)) return "Valid"; else if (/^[^a-z]/i.test(str)) return "First Char Not Alpha!"; else if (/[^a-z0-9\-]/i.test(str)) return "Invalid Character!"; else return "Too short!";}//eof - anyClass5function any4Words(str) { /* Verify at least 4 words can be 1 letter or digit * Return boolean */ return /(\b[a-z0-9]+\b.*){4,}/i.test(str);}//eof - any4Wordsfunction three3lettered(str) { /* Verify at least 3 words having at least 3 characters * Return boolean */ return /(\b[a-z0-9]{3,}\b.*){3,}/i.test(str);}//eof - three3letteredfunction varTest(data) { /* Verify valid JavaScript variable name any length * Return string */ if (/^[a-z$_][\w$]*$/i.test(data)) return "Valid JavaScript Name"; else if (/^[^a-z$_]/i.test(data)) return "Invalid First Character!"; else return "Invalid Character!";}//eof - varTestfunction classTest(data) { /* Verify valid CSS class name any length * Return string */ if (/^[a-z][a-z0-9\-]*$/i.test(data)) return "Valid Class Name"; else if (/^[^a-z]/i.test(data)) return "Invalid First Character!"; else return "Invalid Character!";}//eof - classTestfunction phpTest(data) { /* Verify valid PHP variable name any length * Return string */ if (/^\$[\w]*$/i.test(data)) return "Valid PHP/Perl Identifier"; else if (/^[^$]/.test(data)) return "Invalid First Character!"; else return "Invalid Character!";}//eof - phpTestfunction validate_file(data){ /* Parses filename and extension * for specified extenstions * * Returns Object */ data = data.replace(/^\s*|\s*$/g, ""); //trims string return /^[a-z]\w*\.(asp|html|htm|shtml|php)$/i.test(data)}//eof - validate_file/* Three different email tests return boolean */function isEmail1(data) { return /^[a-zA-Z0-9_\-.]+@[a-zA-Z0-9\-]+\.[a-zA-Z0-9]+$/i.test(data);}//eof - isEmail1function isEmail2(data) { return /^[\w.\-]+@[\w\-]+\.[a-zA-Z0-9]+$/i.test(data);}//eof - isEmail2function isEmail3(data) { //recommended expression: most complete return /^([\w]+)(\.[\w]+)*@([\w\-]+)(\.[\w]{2,4})(\.[a-z]{2})?$/i.test(data);}//eof - isEmail3function isSSN1(data) { /* Validate American SSN requiring dashes * Return boolean */ return /^\d{3}-\d{2}-\d{4}$/.test(data);}//eof - isSSN1function isSSN2(data) { /* Validate American SSN dashes optional * Return boolean */ return /^\d{3}-?\d{2}-?\d{4}$/.test(data);}//eof -isSSN2function isPhone1(data) { /* Validate American phone number: (123) 456-7890 * requiring parenthesis, space and dash * Return boolean */ return /^\(\d{3}\) \d{3}-\d{4}$/.test(data);}//eof - isPhone1function isPhone2(data) { /* Validate American phone number: (123) 456-7890 * requiring parenthesis and dash * optional space * Return boolean */ return /^\([1-9]\d{2}\)\s?\d{3}\-\d{4}$/.test(data);}//eof - isPhone2function isPhone3(data) { /* Validate American phone number: (123) 456-7890 * optional parenthesis, space and dash * Return boolean */return /^\(?([1-9]\d{2})(\) ?|[.-])?(\d{3})[.-]?(\d{4})$/.test(data);}//eof - isPhone3function isValidDate(date_string, format) {/* Validate string user entered as a date in * 1 of 6 formats *m/d/yAmerican month, day, year with 2 or 4 digit year *mm/dd/yyShort American with 2 digit year *mm/dd/yyyyLong American with 4 digit year *y/m/dEuropean year, month, day with 2 or 4 digit year *yy/mm/ddEuropean with 2 digit year *yyyy/mm/ddEuropean with 4 digit year */var days = [0,31,28,31,30,31,30,31,31,30,31,30,31];var year, month, day, date_parts = null;var rtrn = false;/* JS Object/Hash table to branch for format */var decisionTree = {'m/d/y':{'re':/^(\d{1,2})[./-](\d{1,2})[./-](\d{2}|\d{4})$/,'month': 1,'day': 2, year: 3},'mm/dd/yy':{'re':/^(\d{1,2})[./-](\d{1,2})[./-](\d{2})$/,'month': 1,'day': 2, year: 3},'mm/dd/yyyy':{'re':/^(\d{1,2})[./-](\d{1,2})[./-](\d{4})$/,'month': 1,'day': 2, year: 3},'y/m/d':{'re':/^(\d{2}|\d{4})[./-](\d{1,2})[./-](\d{1,2})$/,'month': 2,'day': 3, year: 1},'yy/mm/dd':{'re':/^(\d{1,2})[./-](\d{1,2})[./-](\d{1,2})$/,'month': 2,'day': 3, year: 1},'yyyy/mm/dd':{'re':/^(\d{4})[./-](\d{1,2})[./-](\d{1,2})$/,'month': 2,'day': 3, year: 1}};var test = decisionTree[format]; //Get regexp, etc matching formatif (test) {date_parts = date_string.match(test.re); //parse stringif (date_parts) {year = date_parts[test.year] - 0;month = date_parts[test.month] - 0;day = date_parts[test.day] - 0;//Get number of days in month -- zero for invalid monthstest = (month == 2 && isLeapYear() && 29 || days[month] || 0);rtrn = 1 <= day && day <= test; //Check day is in range; false for invalid months}}function isLeapYear() {return (year % 4 != 0 ? false : ( year % 100 != 0? true: ( year % 1000 != 0? false : true)));}return rtrn;}//eof isValidDate/* regexp-validate-numbers.js */function uInteger(str) { /* Verify unsigned integer * ignoring leading and trailing spaces * Return boolean */ str = str.replace(/^\s+|\s+$/g, ''); return /^[0-9]+$/.test(str);}//eof - uIntegerfunction uInteger2(str) { /* Verify unsigned integer * ignoring leading and trailing spaces * Return boolean */ str = str.replace(/^\s+|\s+$/g, ''); return /^\d+$/.test(str);}//eof uInteger2function uInteger3to5(str) { /* Verify unsigned integer 3 to 5 digits * ignoring leading and trailing spaces * Return boolean */ str = str.replace(/^\s+|\s+$/g, ''); return /^\d{3,5}$/.test(str);}//eof - uInteger3to5function sInteger(str) { /* Verify signed integer at least one digit * ignoring leading and trailing spaces * Return boolean */ str = str.replace(/^\s+|\s+$/g, ''); return /^[-+]?[0-9]+$/.test(str);}//eof - sIntegerfunction sInteger2(str) { /* Verify signed integer at least one digit * ignoring leading and trailing spaces * Return boolean */ str = str.replace(/^\s+|\s+$/g, ''); return /^[-+]?\d+$/.test(str);}//eof - sInteger2function sInteger3to5(str) { /* Verify signed integer 3 to 5 digits * ignoring leading and trailing spaces * Return boolean */ str = str.replace(/^\s+|\s+$/g, ''); return /^[-+]?\d{3,5}$/.test(str);}//eof - sInteger3to5function isFloat(str) { /* Verify signed float decimal optional * ignoring leading and trailing spaces * Return boolean */ str = str.replace(/^\s+|\s+$/g, ''); return /^[-+]?[0-9]+(\.[0-9]+)?$/.test(str);}//eof isFloatfunction isFloat2(str) { /* Verify signed float decimal optional * ignoring leading and trailing spaces * Return boolean */ str = str.replace(/^\s+|\s+$/g, ''); return /^[-+]?\d+(\.\d+)?$/.test(str);}//eof isFloat2function isFloat3to5d0to3(str) { /* Verify float 3 to 5 digits, decimal max 3 digits * if decimal point must have at least 1 decimal digit * Return boolean */ str = str.replace(/^\s+|\s+$/g, ''); return /^[-+]?\d{3,5}(\.\d{1,3})?$/.test(str);}//eof - isFloat3to5d10to3function isCurrency1(str) { /* Verify formatted currency optional $, no leading zero * reguire comma separator, 2 digit decimal if any * ignore leading and trailing spaces * Return boolean */ str = str.replace(/^\s+|\s+$/g, ''); return /^\$?[1-9][0-9]{0,2}(,[0-9]{3})*(\.[0-9]{2})?$/.test(str);}//eof - isCurrency1function isCurrency2(str) { /* Verify formatted currency optional $, no leading zero * reguire comma separator, 2 digit decimal if any * fillin missing decimal * ignore leading and trailing spaces * Return string */ str = str.replace(/^\s+|\s+$/g, ''); if (/^\$?[1-9][0-9]{0,2}(,[0-9]{3})*(\.[0-9]{0,2})?$/.test(str) ) { if (/\.[0-9]$/.test(str) ) { //needs trailing zero str += "0"; } else if (/\.$/.test(str)) { //needs both trailing zeroes str += "00"; } else if (!/\.[0-9]{2}$/.test(str) ) { //needs everything str += ".00"; } return str; } else { return "Invalid"; }}//eof - isCurrency2function isCurrency3(str) { /* Verify formatted currency optional $, no leading zero * reguire comma separator, 2 digit decimal if any * fillin missing decimal * ignore leading and trailing spaces * Return string */ str = str.replace(/^\s+|\s+$/g, ''); if (/^[-+]?\$?[1-9]\d{0,2}(,\d{3})*(\.\d{0,2})?$/.test(str) ) { if (/\.\d$/.test(str)) { str += "0"; } else if (/\.$/.test(str) ) { str += "00"; } else if (!/\.\d{2}$/.test(str) ) { str += ".00"; } return str; } else { return "Invalid"; }}//eof - isCurrency3