www.webdeveloper.com
Results 1 to 3 of 3

Thread: RegEx woes: Getting all submatches

  1. #1
    Join Date
    Sep 2011
    Posts
    2

    RegEx woes: Getting all submatches

    Hi,

    I'm trying to extract one or multiple usernames from a given search term:
    cartoons -user:donald,mickey,goofy
    However, with the regex I came up with I only get two submatches:
    Code:
    /\-user\:(\w+)(?:\,(\w+))*/i
    submatches: 1: donald 2: goofy
    I've been twiddling with this for two hours now, but still don't know what I'm doing wrong. How do I have to change the expression to get all usernames as submatches?
    Thanks in advance.

  2. #2
    Join Date
    Aug 2007
    Posts
    3,767
    As far as I know, there's no way to do it like that. You could use this, even if it's a bit of a workaround. You may have to tweak it however, depending on how the file is organised.
    Code:
    var arr = str.replace(/.*\-user\:(\w+)((\,\w+)*).*/i,"$1$2").split(",");

  3. #3
    Join Date
    Sep 2011
    Posts
    2
    Quote Originally Posted by Declan1991 View Post
    As far as I know, there's no way to do it like that [...]
    Code:
    var arr = str.replace(/.*\-user\:(\w+)((\,\w+)*).*/i,"$1$2").split(",");
    Yeah. After further googling I stumbled upon the term "atomic groups", which seems to be what I'm used to from other languages but isn't supported in js :~( So I solved my problem with String.split as you suggested. Thanks for your help!

    Code:
    	/**
    	 * Parse the user input for search parameters and store them in yt.searchParams.
    	 * Known parameters are:
    	 * 	-user:<user-1>,<user-2>,...,<user-20>	limit search to videos uploaded by specific users
    	 * @param {String} 	searchTerm 	User input containing the search term plus optional parameters
    	 * @return {String}				The search term without parameters
    	 */
    	yt.parseSearchTerm = function(searchTerm) {
    		var users = [];
    		function getSubmatches() {
    			users = getSubmatches.arguments[1].split(",");
    			return "";
    		}		
    		searchTerm = searchTerm.replace(yt.searchParams.expr.USER_PARAM, getSubmatches);		
    		yt.searchParams.users = users;
    		
    		//!DEBUG:
    		for (var i = 0, field; field = yt.searchParams.users[i]; ++i) println("#" + i + ": " + field);
    		
    		return searchTerm.trim();
    	}

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Tags for this Thread

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
HTML5 Development Center

"

"

X vBulletin 4.2.2 Debug Information

  • Page Generation 0.15881 seconds
  • Memory Usage 2,850KB
  • Queries Executed 15 (?)
More Information
Template Usage (34):
  • (1)SHOWTHREAD
  • (1)ad_footer_end
  • (1)ad_footer_start
  • (1)ad_global_above_footer
  • (1)ad_global_below_navbar
  • (1)ad_global_header1
  • (1)ad_global_header2
  • (1)ad_navbar_below
  • (1)ad_showthread_firstpost_sig
  • (1)ad_showthread_firstpost_start
  • (1)ad_thread_first_post_content
  • (1)ad_thread_last_post_content
  • (4)bbcode_code
  • (2)bbcode_quote
  • (1)footer
  • (1)forumjump
  • (1)forumrules
  • (1)gobutton
  • (1)header
  • (1)headinclude
  • (1)headinclude_bottom
  • (3)memberaction_dropdown
  • (1)navbar
  • (4)navbar_link
  • (1)navbar_moderation
  • (1)navbar_noticebit
  • (1)navbar_tabs
  • (2)option
  • (3)postbit
  • (3)postbit_onlinestatus
  • (3)postbit_wrapper
  • (1)spacer_close
  • (1)spacer_open
  • (1)tagbit_wrapper 

Phrase Groups Available (6):
  • global
  • inlinemod
  • postbit
  • posting
  • reputationlevel
  • showthread
Included Files (26):
  • ./showthread.php
  • ./global.php
  • ./includes/class_bootstrap.php
  • ./includes/init.php
  • ./includes/class_core.php
  • ./includes/config.php
  • ./includes/functions.php
  • ./includes/functions_navigation.php
  • ./includes/class_friendly_url.php
  • ./includes/class_hook.php
  • ./includes/class_bootstrap_framework.php
  • ./vb/vb.php
  • ./vb/phrase.php
  • ./includes/functions_facebook.php
  • ./includes/functions_calendar.php
  • ./includes/functions_bigthree.php
  • ./includes/class_postbit.php
  • ./includes/class_bbcode.php
  • ./includes/functions_reputation.php
  • ./includes/functions_notice.php
  • ./packages/vbattach/attach.php
  • ./vb/types.php
  • ./vb/cache.php
  • ./vb/cache/db.php
  • ./vb/cache/observer/db.php
  • ./vb/cache/observer.php 

Hooks Called (73):
  • init_startup
  • friendlyurl_resolve_class
  • init_startup_session_setup_start
  • database_pre_fetch_array
  • database_post_fetch_array
  • init_startup_session_setup_complete
  • global_bootstrap_init_start
  • global_bootstrap_init_complete
  • cache_permissions
  • fetch_postinfo_query
  • fetch_postinfo
  • fetch_threadinfo_query
  • fetch_threadinfo
  • fetch_foruminfo
  • load_show_variables
  • load_forum_show_variables
  • global_state_check
  • global_bootstrap_complete
  • global_start
  • style_fetch
  • global_setup_complete
  • showthread_start
  • showthread_getinfo
  • strip_bbcode
  • friendlyurl_clean_fragment
  • friendlyurl_geturl
  • forumjump
  • cache_templates
  • cache_templates_process
  • template_register_var
  • template_render_output
  • fetch_template_start
  • fetch_template_complete
  • parse_templates
  • fetch_musername
  • notices_check_start
  • notices_noticebit
  • process_templates_complete
  • friendlyurl_redirect_canonical
  • showthread_post_start
  • showthread_query_postids
  • showthread_query
  • bbcode_fetch_tags
  • bbcode_create
  • showthread_postbit_create
  • postbit_factory
  • postbit_display_start
  • postbit_imicons
  • bbcode_parse_start
  • bbcode_parse_complete_precache
  • bbcode_parse_complete
  • postbit_display_complete
  • memberaction_dropdown
  • tag_fetchbit
  • tag_fetchbit_complete
  • forumrules
  • navbits
  • navbits_complete
  • build_navigation_data
  • build_navigation_array
  • check_navigation_permission
  • process_navigation_links_start
  • process_navigation_links_complete
  • set_navigation_menu_element
  • build_navigation_menudata
  • build_navigation_listdata
  • build_navigation_list
  • set_navigation_tab_main
  • set_navigation_tab_fallback
  • navigation_tab_complete
  • fb_like_button
  • showthread_complete
  • page_templates