javascript - Regex: Match string with substrings with the same pattern -

-

i'm trying match string pattern, can have sub strings same pattern.

here's example string:

nicaragua [[note|note|congo member of iccrom 1999 , nicaragua 1971. both suspended iccrom general assembly in november 2013 having omitted pay contributions 6 consecutive calendar years (iccrom [[statutes|s|url|www.iccrom.org/about/statutes/]], article 9).]]. [[link|url|google.com]] might appear.

and here's pattern:

[[display_text|code|type|content]]

so, want string within brackets, , more string match pattern within top level one.

and want match this:

  1. [[note|s|note|congo member of iccrom 1999 , nicaragua 1971. both suspended iccrom general assembly in november 2013 having omitted pay contributions 6 consecutive calendar years (iccrom [[statutes|s|url|www.iccrom.org/about/statutes/]], article 9).]]

1.1 [[statutes|s|url|www.iccrom.org/about/statutes/]]

  1. [[link|s|url|google.com]]

i using /(\[\[.*]])/ gets until last ]].

what want able identify matched string , convert them html elements, |note| going blockquote tag , |url| a tag. so, blockquote tag can have link tag inside it.

btw, i'm using coffeescript that.

thanks in advance.

in general, regex not @ dealing nested expressions. if use greedy patterns, they'll match much, , if use non-greedy patterns, @bjfletcher suggests, they'll match little, stopping inside outer content. "traditional" approach here token-based parser, step through characters 1 one , build abstract syntax tree (ast) reformat desired.

one hacky approach i've used here convert string json string, , let json parser hard work of converting nested objects: http://jsfiddle.net/t09q783d/1/

function topoormansast(s) {     // escape double-quotes, they'll cause problems otherwise. converts them     // unicode, safe json parsing.     s = s.replace(/"/g, "\u0022");     // transform json string!     s =         // wrap in array delimiters         ('["' + s + '"]')         // replace token starts         .replace(/\[\[([^\|]+)\|([^\|]+)\|([^\|]+)\|/g,              '",{"display_text":"$1","code":"$2","type":"$3","content":["')         // replace token ends         .replace(/\]\]/g, '"]},"');      return json.parse(s); }

this gives array of strings , structured objects, can run through formatter spit out html you'd like. formatter left exercise user :).


Comments

Post a Comment

Popular posts from this blog

PHP DOM loadHTML() method unusual warning -

-
i had following code works fine on localhost: $document = new domdocument(); $document->loadhtml($p_result); $form = $document->getelementsbytagname('form')->item(0); // code continues using $form variable after same code updated on outside server, loadhtml() failed , issued warning. warning: domdocument::loadhtml() expects parameter 1 valid path, string given in path/name/to/script.php returned null instead of object code pretty gets fatal error. note contents of $p_result absolutely same on outside server , on localhost. but why displays kind of warning , why not work? doesn't loadhtml() expects argument 1 string in first place? why method expects parameter 1 valid path ? just make clear i'm not calling loadhtmlfile() , i'm calling loadhtml() . thanks. you're affected one of php bugs . issue present in php 5.6.8 , 5.6.9. have affected php version on server, , bug-free version on localhost. the bug forbids null
Read more

python - How to create jsonb index using GIN on SQLAlchemy? -

-
here's current code creating index jsonb. index("mytable_data_idx_id_key", mytable.data['id'].astext, postgresql_using='gin') but got error. sqlalchemy.exc.programmingerror: (psycopg2.programmingerror) data type text has no default operator class access method "gin" hint: must specify operator class index or define default operator class data type. [sql: "create index event_data_idx_id_key on event using gin ((data ->> 'id'))"] is there way create index on sqlalchemy? the postgresql specific sqlalchemy docs @ http://docs.sqlalchemy.org/en/latest/dialects/postgresql.html#operator-classes mention postgresql_ops dictionary provide "operator class" used postgresql, , provide example illustrating use: index('my_index', my_table.c.id, my_table.c.data, postgresql_ops={ 'data': 'text_pattern_ops',
Read more

c# - TransactionScope not rolling back although no complete() is called -

-
i'm using transactionscope rollback transaction fail bool errorreported = false; action<importerrorlog> newerrorcallback = e => { errorreported = true; errorcallback(e); }; using (var transaction = new transactionscope()) { foreach (importtaskdefinition task in taskdefinition) { loader.load(streamfile, newerrorcallback, task.destinationtable, processingtaskid); } if (!errorreported) transaction.complete(); } i'm sure there no transactionscope started ahead or after code. i'm using entity framework insert in db. regardless state of errorreported transaction never rolled in case of error. what missing ? transactionscope sets transaction.current . that's does. wants transacted must @ property. i believe ef each time connection opened reason. probably, connection open when scope installed. open connection inside of scope or enlist manually. ef has nasty "design decision": default opens
Read more