regex - Regular expression in angular gives unmatched parenthesis error -
i trying validate email in angular using regular expression pattern http://www.regular-expressions.info/email.html follows:
input.form-control(type="email", placeholder="email", name="email", ng-model='doctor.email', ng-pattern='[a-z0-9!#$%&'*+/=?^_`{|}~-]+(?:\.[a-z0-9!#$%&'*+/=?^_`{|}~-]+)*@(?:[a-z0-9](?:[a-z0-9-]*[a-z0-9])?\.)+[a-z0-9](?:[a-z0-9-]*[a-z0-9])?') which gives error:
error: /home/pravin/zyoba/nimbus/nimbus-web/views/adddoc.jade:50 48| .form-group.clearfix 49| .col-xs-7 > 50| input.form-control(type="email", placeholder="email", name="email", ng-model='doctor.email', ng-pattern='[a-z0-9!#$%&'*+/=?^_`{|}~-]+(?:\.[a-z0-9!#$%&'*+/=?^_`{|}~-]+)*@(?:[a-z0-9](?:[a-z0-9-]*[a-z0-9])?\.)+[a-z0-9](?:[a-z0-9-]*[a-z0-9])?') 51| span.font-red.font-23 * 52| span.icon-form-cross(ng-show="docregform.email.$dirty && validation.test(docregform.email.$error)") 53| start character ( not match end character ] @ object.lexer.bracketexpression (/home/pravin/zyoba/nimbus/nimbus-web/node_modules/jade/lib/lexer.js:130:46) @ object.lexer.attrs (/home/pravin/zyoba/nimbus/nimbus-web/node_modules/jade/lib/lexer.js:581:24) @ object.lexer.next (/home/pravin/zyoba/nimbus/nimbus-web/node_modules/jade/lib/lexer.js:867:15) @ object.lexer.lookahead (/home/pravin/zyoba/nimbus/nimbus-web/node_modules/jade/lib/lexer.js:113:46) @ parser.lookahead (/home/pravin/zyoba/nimbus/nimbus-web/node_modules/jade/lib/parser.js:100:23) @ parser.peek (/home/pravin/zyoba/nimbus/nimbus-web/node_modules/jade/lib/parser.js:77:17) @ parser.tag (/home/pravin/zyoba/nimbus/nimbus-web/node_modules/jade/lib/parser.js:733:22) @ parser.parsetag (/home/pravin/zyoba/nimbus/nimbus-web/node_modules/jade/lib/parser.js:719:17) @ parser.parseexpr (/home/pravin/zyoba/nimbus/nimbus-web/node_modules/jade/lib/parser.js:188:21) @ parser.block (/home/pravin/zyoba/nimbus/nimbus-web/node_modules/jade/lib/parser.js:689:25) i regular expression noob, , dont know complex regular expressions. please me debug error.
your problem have single quote (') inside regex, delimit start , end of regex string.
you need escape inner quote somehow.
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