| /* |
| Copyright (c) 2004-2005, The Dojo Foundation |
| All Rights Reserved. |
| |
| Licensed under the Academic Free License version 2.1 or above OR the |
| modified BSD license. For more information on Dojo licensing, see: |
| |
| http://dojotoolkit.org/community/licensing.shtml |
| */ |
| |
| dojo.provide("dojo.regexp"); |
| dojo.provide("dojo.regexp.us"); |
| |
| // *** Regular Expression Generators *** |
| |
| /** |
| Builds a RE that matches a top-level domain. |
| |
| @param flags An object. |
| flags.allowCC Include 2 letter country code domains. Default is true. |
| flags.allowGeneric Include the generic domains. Default is true. |
| flags.allowInfra Include infrastructure domains. Default is true. |
| |
| @return A string for a regular expression for a top-level domain. |
| */ |
| dojo.regexp.tld = function(flags) { |
| // assign default values to missing paramters |
| flags = (typeof flags == "object") ? flags : {}; |
| if (typeof flags.allowCC != "boolean") { flags.allowCC = true; } |
| if (typeof flags.allowInfra != "boolean") { flags.allowInfra = true; } |
| if (typeof flags.allowGeneric != "boolean") { flags.allowGeneric = true; } |
| |
| // Infrastructure top-level domain - only one at present |
| var infraRE = "arpa"; |
| |
| // Generic top-level domains RE. |
| var genericRE = |
| "aero|biz|com|coop|edu|gov|info|int|mil|museum|name|net|org|pro|travel|xxx|jobs|mobi|post"; |
| |
| // Country Code top-level domains RE |
| var ccRE = |
| "ac|ad|ae|af|ag|ai|al|am|an|ao|aq|ar|as|at|au|aw|az|ba|bb|bd|be|bf|bg|bh|bi|bj|bm|bn|bo|br|" + |
| "bs|bt|bv|bw|by|bz|ca|cc|cd|cf|cg|ch|ci|ck|cl|cm|cn|co|cr|cu|cv|cx|cy|cz|de|dj|dk|dm|do|dz|" + |
| "ec|ee|eg|er|es|et|fi|fj|fk|fm|fo|fr|ga|gd|ge|gf|gg|gh|gi|gl|gm|gn|gp|gq|gr|gs|gt|gu|gw|gy|" + |
| "hk|hm|hn|hr|ht|hu|id|ie|il|im|in|io|ir|is|it|je|jm|jo|jp|ke|kg|kh|ki|km|kn|kr|kw|ky|kz|la|" + |
| "lb|lc|li|lk|lr|ls|lt|lu|lv|ly|ma|mc|md|mg|mh|mk|ml|mm|mn|mo|mp|mq|mr|ms|mt|mu|mv|mw|mx|my|" + |
| "mz|na|nc|ne|nf|ng|ni|nl|no|np|nr|nu|nz|om|pa|pe|pf|pg|ph|pk|pl|pm|pn|pr|ps|pt|pw|py|qa|re|" + |
| "ro|ru|rw|sa|sb|sc|sd|se|sg|sh|si|sk|sl|sm|sn|sr|st|su|sv|sy|sz|tc|td|tf|tg|th|tj|tk|tm|tn|" + |
| "to|tr|tt|tv|tw|tz|ua|ug|uk|us|uy|uz|va|vc|ve|vg|vi|vn|vu|wf|ws|ye|yt|yu|za|zm|zw"; |
| |
| // Build top-level domain RE |
| var a = []; |
| if (flags.allowInfra) { a.push(infraRE); } |
| if (flags.allowGeneric) { a.push(genericRE); } |
| if (flags.allowCC) { a.push(ccRE); } |
| |
| var tldRE = ""; |
| if (a.length > 0) { |
| tldRE = "(" + a.join("|") + ")"; |
| } |
| |
| return tldRE; |
| } |
| |
| /** |
| Builds a RE that matches an IP Address. |
| Supports 5 formats for IPv4: dotted decimal, dotted hex, dotted octal, decimal and hexadecimal. |
| Supports 2 formats for Ipv6. |
| |
| @param flags An object. All flags are boolean with default = true. |
| flags.allowDottedDecimal Example, 207.142.131.235. No zero padding. |
| flags.allowDottedHex Example, 0x18.0x11.0x9b.0x28. Case insensitive. Zero padding allowed. |
| flags.allowDottedOctal Example, 0030.0021.0233.0050. Zero padding allowed. |
| flags.allowDecimal Example, 3482223595. A decimal number between 0-4294967295. |
| flags.allowHex Example, 0xCF8E83EB. Hexadecimal number between 0x0-0xFFFFFFFF. |
| Case insensitive. Zero padding allowed. |
| flags.allowIPv6 IPv6 address written as eight groups of four hexadecimal digits. |
| flags.allowHybrid IPv6 address written as six groups of four hexadecimal digits |
| followed by the usual 4 dotted decimal digit notation of IPv4. x:x:x:x:x:x:d.d.d.d |
| |
| @return A string for a regular expression for an IP address. |
| */ |
| dojo.regexp.ipAddress = function(flags) { |
| // assign default values to missing paramters |
| flags = (typeof flags == "object") ? flags : {}; |
| if (typeof flags.allowDottedDecimal != "boolean") { flags.allowDottedDecimal = true; } |
| if (typeof flags.allowDottedHex != "boolean") { flags.allowDottedHex = true; } |
| if (typeof flags.allowDottedOctal != "boolean") { flags.allowDottedOctal = true; } |
| if (typeof flags.allowDecimal != "boolean") { flags.allowDecimal = true; } |
| if (typeof flags.allowHex != "boolean") { flags.allowHex = true; } |
| if (typeof flags.allowIPv6 != "boolean") { flags.allowIPv6 = true; } |
| if (typeof flags.allowHybrid != "boolean") { flags.allowHybrid = true; } |
| |
| // decimal-dotted IP address RE. |
| var dottedDecimalRE = |
| // Each number is between 0-255. Zero padding is not allowed. |
| "((\\d|[1-9]\\d|1\\d\\d|2[0-4]\\d|25[0-5])\\.){3}(\\d|[1-9]\\d|1\\d\\d|2[0-4]\\d|25[0-5])"; |
| |
| // dotted hex IP address RE. Each number is between 0x0-0xff. Zero padding is allowed, e.g. 0x00. |
| var dottedHexRE = "(0[xX]0*[\\da-fA-F]?[\\da-fA-F]\\.){3}0[xX]0*[\\da-fA-F]?[\\da-fA-F]"; |
| |
| // dotted octal IP address RE. Each number is between 0000-0377. |
| // Zero padding is allowed, but each number must have at least 4 characters. |
| var dottedOctalRE = "(0+[0-3][0-7][0-7]\\.){3}0+[0-3][0-7][0-7]"; |
| |
| // decimal IP address RE. A decimal number between 0-4294967295. |
| var decimalRE = "(0|[1-9]\\d{0,8}|[1-3]\\d{9}|4[01]\\d{8}|42[0-8]\\d{7}|429[0-3]\\d{6}|" + |
| "4294[0-8]\\d{5}|42949[0-5]\\d{4}|429496[0-6]\\d{3}|4294967[01]\\d{2}|42949672[0-8]\\d|429496729[0-5])"; |
| |
| // hexadecimal IP address RE. |
| // A hexadecimal number between 0x0-0xFFFFFFFF. Case insensitive. Zero padding is allowed. |
| var hexRE = "0[xX]0*[\\da-fA-F]{1,8}"; |
| |
| // IPv6 address RE. |
| // The format is written as eight groups of four hexadecimal digits, x:x:x:x:x:x:x:x, |
| // where x is between 0000-ffff. Zero padding is optional. Case insensitive. |
| var ipv6RE = "([\\da-fA-F]{1,4}\\:){7}[\\da-fA-F]{1,4}"; |
| |
| // IPv6/IPv4 Hybrid address RE. |
| // The format is written as six groups of four hexadecimal digits, |
| // followed by the 4 dotted decimal IPv4 format. x:x:x:x:x:x:d.d.d.d |
| var hybridRE = "([\\da-fA-F]{1,4}\\:){6}" + |
| "((\\d|[1-9]\\d|1\\d\\d|2[0-4]\\d|25[0-5])\\.){3}(\\d|[1-9]\\d|1\\d\\d|2[0-4]\\d|25[0-5])"; |
| |
| // Build IP Address RE |
| var a = []; |
| if (flags.allowDottedDecimal) { a.push(dottedDecimalRE); } |
| if (flags.allowDottedHex) { a.push(dottedHexRE); } |
| if (flags.allowDottedOctal) { a.push(dottedOctalRE); } |
| if (flags.allowDecimal) { a.push(decimalRE); } |
| if (flags.allowHex) { a.push(hexRE); } |
| if (flags.allowIPv6) { a.push(ipv6RE); } |
| if (flags.allowHybrid) { a.push(hybridRE); } |
| |
| var ipAddressRE = ""; |
| if (a.length > 0) { |
| ipAddressRE = "(" + a.join("|") + ")"; |
| } |
| |
| return ipAddressRE; |
| } |
| |
| /** |
| Builds a RE that matches a host. |
| A host is a domain name or an IP address, possibly followed by a port number. |
| |
| @param flags An object. |
| flags.allowIP Allow an IP address for hostname. Default is true. |
| flags.allowLocal Allow the host to be "localhost". Default is false. |
| flags.allowPort Allow a port number to be present. Default is true. |
| flags in regexp.ipAddress can be applied. |
| flags in regexp.tld can be applied. |
| |
| @return A string for a regular expression for a host. |
| */ |
| dojo.regexp.host = function(flags) { |
| // assign default values to missing paramters |
| flags = (typeof flags == "object") ? flags : {}; |
| if (typeof flags.allowIP != "boolean") { flags.allowIP = true; } |
| if (typeof flags.allowLocal != "boolean") { flags.allowLocal = false; } |
| if (typeof flags.allowPort != "boolean") { flags.allowPort = true; } |
| |
| // Domain names can not end with a dash. |
| var domainNameRE = "([0-9a-zA-Z]([-0-9a-zA-Z]{0,61}[0-9a-zA-Z])?\\.)+" + dojo.regexp.tld(flags); |
| |
| // port number RE |
| portRE = ( flags.allowPort ) ? "(\\:" + dojo.regexp.integer({signed: false}) + ")?" : ""; |
| |
| // build host RE |
| var hostNameRE = domainNameRE; |
| if (flags.allowIP) { hostNameRE += "|" + dojo.regexp.ipAddress(flags); } |
| if (flags.allowLocal) { hostNameRE += "|localhost"; } |
| |
| return "(" + hostNameRE + ")" + portRE; |
| } |
| |
| /** |
| Builds a regular expression that matches a URL. |
| |
| @param flags An object. |
| flags.scheme Can be true, false, or [true, false]. |
| This means: required, not allowed, or match either one. |
| flags in regexp.host can be applied. |
| flags in regexp.ipAddress can be applied. |
| flags in regexp.tld can be applied. |
| |
| @return A string for a regular expression for a URL. |
| */ |
| dojo.regexp.url = function(flags) { |
| // assign default values to missing paramters |
| flags = (typeof flags == "object") ? flags : {}; |
| if (typeof flags.scheme == "undefined") { flags.scheme = [true, false]; } |
| |
| // Scheme RE |
| var protocalRE = dojo.regexp.buildGroupRE(flags.scheme, |
| function(q) { if (q) { return "(https?|ftps?)\\://"; } return ""; } |
| ); |
| |
| // Path and query and anchor RE |
| var pathRE = "(/([^?#\\s/]+/)*)?([^?#\\s/]+(\\?[^?#\\s/]*)?(#[A-Za-z][\\w.:-]*)?)?"; |
| |
| return (protocalRE + dojo.regexp.host(flags) + pathRE); |
| } |
| |
| /** |
| Builds a regular expression that matches an email address. |
| |
| @param flags An object. |
| flags.allowCruft Allow address like <mailto:foo@yahoo.com>. Default is false. |
| flags in regexp.host can be applied. |
| flags in regexp.ipAddress can be applied. |
| flags in regexp.tld can be applied. |
| |
| @return A string for a regular expression for an email address. |
| */ |
| dojo.regexp.emailAddress = function(flags) { |
| // assign default values to missing paramters |
| flags = (typeof flags == "object") ? flags : {}; |
| if (typeof flags.allowCruft != "boolean") { flags.allowCruft = false; } |
| flags.allowPort = false; // invalid in email addresses |
| |
| // user name RE - apostrophes are valid if there's not 2 in a row |
| var usernameRE = "([\\da-z]+[-._+&'])*[\\da-z]+"; |
| |
| // build emailAddress RE |
| var emailAddressRE = usernameRE + "@" + dojo.regexp.host(flags); |
| |
| // Allow email addresses with cruft |
| if ( flags.allowCruft ) { |
| emailAddressRE = "<?(mailto\\:)?" + emailAddressRE + ">?"; |
| } |
| |
| return emailAddressRE; |
| } |
| |
| /** |
| Builds a regular expression that matches a list of email addresses. |
| |
| @param flags An object. |
| flags.listSeparator The character used to separate email addresses. Default is ";", ",", "\n" or " ". |
| flags in regexp.emailAddress can be applied. |
| flags in regexp.host can be applied. |
| flags in regexp.ipAddress can be applied. |
| flags in regexp.tld can be applied. |
| |
| @return A string for a regular expression for an email address list. |
| */ |
| dojo.regexp.emailAddressList = function(flags) { |
| // assign default values to missing paramters |
| flags = (typeof flags == "object") ? flags : {}; |
| if (typeof flags.listSeparator != "string") { flags.listSeparator = "\\s;,"; } |
| |
| // build a RE for an Email Address List |
| var emailAddressRE = dojo.regexp.emailAddress(flags); |
| var emailAddressListRE = "(" + emailAddressRE + "\\s*[" + flags.listSeparator + "]\\s*)*" + |
| emailAddressRE + "\\s*[" + flags.listSeparator + "]?\\s*"; |
| |
| return emailAddressListRE; |
| } |
| |
| /** |
| Builds a regular expression that matches an integer. |
| |
| @param flags An object. |
| flags.signed The leading plus-or-minus sign. Can be true, false, or [true, false]. |
| Default is [true, false], (i.e. will match if it is signed or unsigned). |
| flags.separator The character used as the thousands separator. Default is no separator. |
| For more than one symbol use an array, e.g. [",", ""], makes ',' optional. |
| |
| @return A string for a regular expression for an integer. |
| */ |
| dojo.regexp.integer = function(flags) { |
| // assign default values to missing paramters |
| flags = (typeof flags == "object") ? flags : {}; |
| if (typeof flags.signed == "undefined") { flags.signed = [true, false]; } |
| if (typeof flags.separator == "undefined") { flags.separator = ""; } |
| |
| // build sign RE |
| var signRE = dojo.regexp.buildGroupRE(flags.signed, |
| function(q) { if (q) { return "[-+]"; } return ""; } |
| ); |
| |
| // number RE |
| var numberRE = dojo.regexp.buildGroupRE(flags.separator, |
| function(sep) { |
| if ( sep == "" ) { |
| return "(0|[1-9]\\d*)"; |
| } |
| return "(0|[1-9]\\d{0,2}([" + sep + "]\\d{3})*)"; |
| } |
| ); |
| var numberRE; |
| |
| // integer RE |
| return (signRE + numberRE); |
| } |
| |
| /** |
| Builds a regular expression to match a real number in exponential notation. |
| |
| @param flags An object. |
| flags.places The integer number of decimal places. |
| If not given, the decimal part is optional and the number of places is unlimited. |
| flags.decimal A string for the character used as the decimal point. Default is ".". |
| flags.exponent Express in exponential notation. Can be true, false, or [true, false]. |
| Default is [true, false], (i.e. will match if the exponential part is present are not). |
| flags.eSigned The leading plus-or-minus sign on the exponent. Can be true, false, |
| or [true, false]. Default is [true, false], (i.e. will match if it is signed or unsigned). |
| flags in regexp.integer can be applied. |
| |
| @return A string for a regular expression for a real number. |
| */ |
| dojo.regexp.realNumber = function(flags) { |
| // assign default values to missing paramters |
| flags = (typeof flags == "object") ? flags : {}; |
| if (typeof flags.places != "number") { flags.places = Infinity; } |
| if (typeof flags.decimal != "string") { flags.decimal = "."; } |
| if (typeof flags.exponent == "undefined") { flags.exponent = [true, false]; } |
| if (typeof flags.eSigned == "undefined") { flags.eSigned = [true, false]; } |
| |
| // integer RE |
| var integerRE = dojo.regexp.integer(flags); |
| |
| // decimal RE |
| var decimalRE = ""; |
| if ( flags.places == Infinity) { |
| decimalRE = "(\\" + flags.decimal + "\\d+)?"; |
| } |
| else if ( flags.places > 0) { |
| decimalRE = "\\" + flags.decimal + "\\d{" + flags.places + "}"; |
| } |
| |
| // exponent RE |
| var exponentRE = dojo.regexp.buildGroupRE(flags.exponent, |
| function(q) { |
| if (q) { return "([eE]" + dojo.regexp.integer({signed: flags.eSigned}) + ")"; } |
| return ""; |
| } |
| ); |
| |
| // real number RE |
| return (integerRE + decimalRE + exponentRE); |
| } |
| |
| /** |
| Builds a regular expression to match a monetary value. |
| |
| @param flags An object. |
| flags.signed The leading plus-or-minus sign. Can be true, false, or [true, false]. |
| Default is [true, false], (i.e. will match if it is signed or unsigned). |
| flags.symbol A currency symbol such as Yen "�", Pound "�", or the Euro sign "�". |
| Default is "$". For more than one symbol use an array, e.g. ["$", ""], makes $ optional. |
| flags.placement The symbol can come "before" the number or "after". Default is "before". |
| flags.separator The character used as the thousands separator. The default is ",". |
| flags.cents The two decimal places for cents. Can be true, false, or [true, false]. |
| Default is [true, false], (i.e. will match if cents are present are not). |
| flags.decimal A string for the character used as the decimal point. Default is ".". |
| |
| @return A string for a regular expression for a monetary value. |
| */ |
| dojo.regexp.currency = function(flags) { |
| // assign default values to missing paramters |
| flags = (typeof flags == "object") ? flags : {}; |
| if (typeof flags.signed == "undefined") { flags.signed = [true, false]; } |
| if (typeof flags.symbol == "undefined") { flags.symbol = "$"; } |
| if (typeof flags.placement != "string") { flags.placement = "before"; } |
| if (typeof flags.separator != "string") { flags.separator = ","; } |
| if (typeof flags.cents == "undefined") { flags.cents = [true, false]; } |
| if (typeof flags.decimal != "string") { flags.decimal = "."; } |
| |
| // build sign RE |
| var signRE = dojo.regexp.buildGroupRE(flags.signed, |
| function(q) { if (q) { return "[-+]"; } return ""; } |
| ); |
| |
| // build symbol RE |
| var symbolRE = dojo.regexp.buildGroupRE(flags.symbol, |
| function(symbol) { |
| // escape all special characters |
| return "\\s?" + symbol.replace( /([.$?*!=:|\\\/^])/g, "\\$1") + "\\s?"; |
| } |
| ); |
| |
| // number RE |
| var numberRE = dojo.regexp.integer( {signed: false, separator: flags.separator} ); |
| |
| // build cents RE |
| var centsRE = dojo.regexp.buildGroupRE(flags.cents, |
| function(q) { if (q) { return "(\\" + flags.decimal + "\\d\\d)"; } return ""; } |
| ); |
| |
| // build currency RE |
| var currencyRE; |
| if (flags.placement == "before") { |
| currencyRE = signRE + symbolRE + numberRE + centsRE; |
| } |
| else { |
| currencyRE = signRE + numberRE + centsRE + symbolRE; |
| } |
| |
| return currencyRE; |
| } |
| |
| /** |
| A regular expression to match US state and territory abbreviations. |
| |
| @param flags An object. |
| flags.allowTerritories Allow Guam, Puerto Rico, etc. Default is true. |
| flags.allowMilitary Allow military 'states', e.g. Armed Forces Europe (AE). Default is true. |
| |
| @return A string for a regular expression for a US state. |
| */ |
| dojo.regexp.us.state = function(flags) { |
| // assign default values to missing paramters |
| flags = (typeof flags == "object") ? flags : {}; |
| if (typeof flags.allowTerritories != "boolean") { flags.allowTerritories = true; } |
| if (typeof flags.allowMilitary != "boolean") { flags.allowMilitary = true; } |
| |
| // state RE |
| var statesRE = |
| "AL|AK|AZ|AR|CA|CO|CT|DE|DC|FL|GA|HI|ID|IL|IN|IA|KS|KY|LA|ME|MD|MA|MI|MN|MS|MO|MT|" + |
| "NE|NV|NH|NJ|NM|NY|NC|ND|OH|OK|OR|PA|RI|SC|SD|TN|TX|UT|VT|VA|WA|WV|WI|WY"; |
| |
| // territories RE |
| var territoriesRE = "AS|FM|GU|MH|MP|PW|PR|VI"; |
| |
| // military states RE |
| var militaryRE = "AA|AE|AP"; |
| |
| // Build states and territories RE |
| if (flags.allowTerritories) { statesRE += "|" + territoriesRE; } |
| if (flags.allowMilitary) { statesRE += "|" + militaryRE; } |
| |
| return "(" + statesRE + ")"; |
| } |
| |
| /** |
| Builds a regular expression to match any International format for time. |
| The RE can match one format or one of multiple formats. |
| |
| Format |
| h 12 hour, no zero padding. |
| hh 12 hour, has leading zero. |
| H 24 hour, no zero padding. |
| HH 24 hour, has leading zero. |
| m minutes, no zero padding. |
| mm minutes, has leading zero. |
| s seconds, no zero padding. |
| ss seconds, has leading zero. |
| t am or pm, case insensitive. |
| All other characters must appear literally in the expression. |
| |
| Example |
| "h:m:s t" -> 2:5:33 PM |
| "HH:mm:ss" -> 14:05:33 |
| |
| @param flags An object. |
| flags.format A string or an array of strings. Default is "h:mm:ss t". |
| flags.amSymbol The symbol used for AM. Default is "AM". |
| flags.pmSymbol The symbol used for PM. Default is "PM". |
| |
| @return A string for a regular expression for a time value. |
| */ |
| dojo.regexp.time = function(flags) { |
| // assign default values to missing paramters |
| flags = (typeof flags == "object") ? flags : {}; |
| if (typeof flags.format == "undefined") { flags.format = "h:mm:ss t"; } |
| if (typeof flags.amSymbol != "string") { flags.amSymbol = "AM"; } |
| if (typeof flags.pmSymbol != "string") { flags.pmSymbol = "PM"; } |
| |
| // Converts a time format to a RE |
| var timeRE = function(format) { |
| // escape all special characters |
| format = format.replace( /([.$?*!=:|{}\(\)\[\]\\\/^])/g, "\\$1"); |
| var amRE = flags.amSymbol.replace( /([.$?*!=:|{}\(\)\[\]\\\/^])/g, "\\$1"); |
| var pmRE = flags.pmSymbol.replace( /([.$?*!=:|{}\(\)\[\]\\\/^])/g, "\\$1"); |
| |
| // replace tokens with Regular Expressions |
| format = format.replace("hh", "(0[1-9]|1[0-2])"); |
| format = format.replace("h", "([1-9]|1[0-2])"); |
| format = format.replace("HH", "([01][0-9]|2[0-3])"); |
| format = format.replace("H", "([0-9]|1[0-9]|2[0-3])"); |
| format = format.replace("mm", "([0-5][0-9])"); |
| format = format.replace("m", "([1-5][0-9]|[0-9])"); |
| format = format.replace("ss", "([0-5][0-9])"); |
| format = format.replace("s", "([1-5][0-9]|[0-9])"); |
| format = format.replace("t", "\\s?(" + amRE + "|" + pmRE + ")\\s?" ); |
| |
| return format; |
| }; |
| |
| // build RE for multiple time formats |
| return dojo.regexp.buildGroupRE(flags.format, timeRE); |
| } |
| |
| /** |
| Builds a regular expression to match any sort of number based format. |
| Use it for phone numbers, social security numbers, zip-codes, etc. |
| The RE can match one format or one of multiple formats. |
| |
| Format |
| # Stands for a digit, 0-9. |
| ? Stands for an optional digit, 0-9 or nothing. |
| All other characters must appear literally in the expression. |
| |
| Example |
| "(###) ###-####" -> (510) 542-9742 |
| "(###) ###-#### x#???" -> (510) 542-9742 x153 |
| "###-##-####" -> 506-82-1089 i.e. social security number |
| "#####-####" -> 98225-1649 i.e. zip code |
| |
| @param flags An object. |
| flags.format A string or an Array of strings for multiple formats. |
| @return A string for a regular expression for the number format(s). |
| */ |
| dojo.regexp.numberFormat = function(flags) { |
| // assign default values to missing paramters |
| flags = (typeof flags == "object") ? flags : {}; |
| if (typeof flags.format == "undefined") { flags.format = "###-###-####"; } |
| |
| // Converts a number format to RE. |
| var digitRE = function(format) { |
| // escape all special characters, except '?' |
| format = format.replace( /([.$*!=:|{}\(\)\[\]\\\/^])/g, "\\$1"); |
| |
| // Now replace '?' with Regular Expression |
| format = format.replace(/\?/g, "\\d?"); |
| |
| // replace # with Regular Expression |
| format = format.replace(/#/g, "\\d"); |
| |
| return format; |
| }; |
| |
| // build RE for multiple number formats |
| return dojo.regexp.buildGroupRE(flags.format, digitRE); |
| } |
| |
| |
| /** |
| This is basically a utility function used by some of the RE generators. |
| Builds a regular expression that groups subexpressions. |
| The subexpressions are constructed by the function, re, in the second parameter. |
| re builds one subexpression for each elem in the array a, in the first parameter. |
| |
| @param a A single value or an array of values. |
| @param re A function. Takes one parameter and converts it to a regular expression. |
| @return A string for a regular expression that groups all the subexpressions. |
| */ |
| dojo.regexp.buildGroupRE = function(a, re) { |
| |
| // case 1: a is a single value. |
| if ( !( a instanceof Array ) ) { |
| return re(a); |
| } |
| |
| // case 2: a is an array |
| var b = []; |
| for (var i = 0; i < a.length; i++) { |
| // convert each elem to a RE |
| b.push(re(a[i])); |
| } |
| |
| // join the REs as alternatives in a RE group. |
| return "(" + b.join("|") + ")"; |
| } |