improve chatter regex to prevent infinite loop
improve chatter regex to prevent infinite loop

R.find can be called repeatedly to update the R.groups and will return 0 if no match is found
Cyberboss/tgstation,Memendia/HippieStation,Shadowlight213/-tg-station,TehZombehz/-tg-station,Zorking/white,JJRcop/-tg-station,GunHog/-tg-station,Cruix/-tg-station,Xhuis/-tg-station,hornygranny/-tg-station,erwgd/-tg-station,Cheridan/-tg-station,F-OS/tgstation,coiax/-tg-station,chickenboy10/tgstation,optimumtact/-tg-station,Niknakflak/-tg-station,AuroranAI/FTL13,Cruix/-tg-station-yog-rebase,PKPenguin321/-tg-station,Qwertyon666/Necro,Haevacht/tgstation,kingofkosmos/-tg-station,LegendaryPoro/FTL13,matskuman5/yogstation,feemjmeem/-tg-station,yogstation13/-tg-station-yog-rebase,JJRcop/tgstation,Poojawa/tgstation-fork,Osokorn/tgstation,MrStonedOne/-tg-station,NicholasM10/-tg-station,Bawhoppen/-tg-station,AdamElTablawy/yogstation-1,neersighted/tgstation,QualityVan/tgstation,NicholasM10/-tg-station,duncathan/-tg-station,balohmatevz/-tg-station,SamuelRowe/-tg-station,Cheridan/-tg-station,CosmicScientist/-tg-station,Zostroll/yogstation,HippieStation/HippieStation,kingofkosmos/-tg-station,Arianya/tgstation,lordpidey/-tg-station,Y0SH1M4S73R/-tg-station,XDTM/tgstation,Arianya/tgstation,Haevacht/tgstation,MicroWorldwide/SS13-TG-station,MrStonedOne/-tg-station,paprka/-tg-station,Profakos/tgstation,nullbear/-tg-station,tigercat2000/-tg-station,optimumtact/-tg-station,nullbear/-tg-station,kingofkosmos/-tg-station,Yoshmaster/-tg-station,hornygranny/-tg-station,Nickvr628/FTL13,PKPenguin321/-tg-station,anconfuzedrock/tgstation,tgstation/tgstation,Shadowlight213/-tg-station,GunHog/-tg-station,Cyberboss/tgstation,checkraisefold/fulpstation,infinitystation/-tg-station,Cruix/-tg-station-yog-rebase,athompson11/Soteria-v3,CPTANT/-tg-station,LLA-Gaming/LS13,Stealthkibbler/FTL13,4dplanner/tgstation,Jalleo/-tg-station,F-OS/tgstation,tgstation/tgstation,OBA-code/tgstation,WJohn/-tg-station,PJB3005/tgstation,ChangelingRain/-tg-station,ITBlackwood/FTL13,JStheguy/tgstation,paprka/-tg-station,Penguaro/tgstation,Profakos/tgstation,F-OS/tgstation,tgstation/tgstation,InsaneHyena/tgstation,blockheads/-tg-station,Razharas/-tg-station,Cruix/-tg-station-yog-rebase,XDTM/tgstation,TehZombehz/-tg-station,loqoman/tgstation,ChayseRamsay/Soteria-v3,vcordie/tgstation,TehZombehz/-tg-station,JStheguy/tgstation,HippieStation/HippieStation,AnturK/-tg-station,TheRealGLH/-tg-station,HippieStationCode/HippieStation13,GunHog/-tg-station,Jordie0608/tgstation,duncathan/-tg-station,vcordie/tgstation,XDTM/tgstation,Jalleo/-tg-station,securitycopper/-tg-station,CPTANT/-tg-station,dannno/-tg-station,infinitystation/-tg-station,Haevacht/tgstation,tgstation/-tg-station,Time-Green/-tg-station-yog-rebase,Cruix/-tg-station,CPTANT/-tg-station,tgstation/-tg-station,Cyberboss/tgstation,LLA-Gaming/LS13,utahclock/yogstation,Cruix/-tg-station-yog-rebase,Memendia/HippieStation,4dplanner/tgstation,securitycopper/-tg-station,Profakos/tgstation,xxalpha/-tg-station,X-TheDark/yogstation,Tacolizard/tgstation,infinitystation/-tg-station,Qwertyon666/Necro,PKPenguin321/-tg-station,ShizCalev/tgstation,Kirill1243/-tg-station,Bawhoppen/-tg-station,checkraisefold/fulpstation,tgstation/-tg-station,Bawhoppen/-tg-station,Yoshmaster/-tg-station,nullbear/-tg-station,Cheridan/tgstation,ohnopigeons/tgstation,AuroranAI/FTL13,Aranclanos/-tg-station,ShizCalev/tgstation,ShizCalev/tgstation,securitycopper/-tg-station,McBawbaggings/HippieStation,ToGWtF/yogstation,octareenroon91/-tg-station,Nickvr628/FTL13,tgstation/tgstation,Jordie0608/-tg-station,infinitystation/-tg-station,MicroWorldwide/SS13-TG-station,Aloraydrel/-tg-station,LanCartwright/-tg-station,bear1ake/-tg-station,ohnopigeons/tgstation,CosmicScientist/-tg-station,NicholasM10/-tg-station,HippieStation/HippieStation,TheDreamweaver/-tg-station,kingofkosmos/-tg-station,phil235/-tg-station,Tokiko1/tgstation,Poojawa/tgstation-fork,riftstation/riftstation,Cruix/-tg-station,Mark9013100/tgstation-m9,kevinz000/-tg-station,Jalleo/-tg-station,TehZombehz/-tg-station,Y0SH1M4S73R/-tg-station,PKPenguin321/-tg-station,Hollexian/FTL13,Mervill/tgstation,Shadowlight213/-tg-station,Robustin/tgstation,Fox-McCloud/-tg-station,Thunder12345/-tg-station,A-t48/-tg-station,xxalpha/-tg-station,TheRealGLH/-tg-station,Anonus/-tg-station,Cheridan/-tg-station,anconfuzedrock/tgstation,JJRcop/-tg-station,Expletive/tgstation,Y0SH1M4S73R/-tg-station,Cheridan/tgstation,feemjmeem/-tg-station,InsaneHyena/tgstation,Fox-McCloud/-tg-station,Tokiko1/tgstation,octareenroon91/-tg-station,dannno/-tg-station,tgstation/tgstation,AsV9/yogstation,Mark9013100/tgstation-m9,vcordie/tgstation,TehZombehz/-tg-station,McBawbaggings/HippieStation,TalkingCactus/tgstation,Y0SH1M4S73R/-tg-station,GunHog/-tg-station,Crexfu/tgstation,JJRcop/tgstation,Razharas/-tg-station,McBawbaggings/HippieStation,CPTANT/-tg-station,Bawhoppen/-tg-station,neersighted/tgstation,Stealthkibbler/FTL13,MrStonedOne/tgstation,AdamElTablawy/yogstation-1,Time-Green/-tg-station-yog-rebase,infinitystation/-tg-station,anconfuzedrock/tgstation,NicholasM10/-tg-station,Buggy123/-tg-station,xxalpha/-tg-station,Niknakflak/-tg-station,blockheads/-tg-station,Bawhoppen/-tg-station,Jordie0608/-tg-station,feemjmeem/-tg-station,balohmatevz/-tg-station,Jordie0608/tgstation,Jalleo/-tg-station,QualityVan/tgstation,kingofkosmos/-tg-station,HippieStationCode/HippieStation13,GuyonBroadway/HippieStation,LegendaryPoro/FTL13,posttk421/tgstation,OBA-code/tgstation,Buggy123/-tg-station,Osokorn/tgstation,Thunder12345/-tg-station,Incoming5643/-tg-station,Zostroll/yogstation,Robustin/tgstation,GunHog/-tg-station,JStheguy/tgstation,tgstation/tgstation,Aloraydrel/-tg-station,Arianya/tgstation,Cruix/-tg-station,TheSarkazmus/Faster-Than-Lizard-13,balohmatevz/-tg-station,OliBomby/yogstation-1,securitycopper/-tg-station,TheOneForgotten/white,CrAzYPiLoT-SS13/FTL13,Poojawa/tgstation-fork,ike709/FTL13,CrAzYPiLoT-SS13/FTL13-1,loqoman/tgstation,MicroWorldwide/SS13-TG-station,NicholasM10/-tg-station,AuroranAI/FTL13,Niknakflak/-tg-station,tgstation/tgstation,duncathan/-tg-station,CrAzYPiLoT-SS13/FTL13-1,Niknakflak/-tg-station,Mark9013100/tgstation-m9,Tokiko1/tgstation,nicbn/tgstation,OBA-code/tgstation,TheVekter/-tg-station,Shadowlight213/-tg-station,utahclock/yogstation,athompson11/Soteria-v3,JStheguy/tgstation,CrAzYPiLoT-SS13/FTL13-1,MrStonedOne/tgstation,duncathan/-tg-station,CosmicScientist/-tg-station,Thunder12345/-tg-station,Jordie0608/tgstation,hornygranny/-tg-station,Shadowlight213/-tg-station,Valanthe500/Soteria-v3,Tacolizard/tgstation,chickenboy10/tgstation,Y0SH1M4S73R/-tg-station,ChangelingRain/-tg-station,TheOneForgotten/white,JJRcop/tgstation,CosmicScientist/-tg-station,Shadowlight213/-tg-station,HippieStation/HippieStation,Core0verload/-tg-station,kyrahabattoir/-tg-station,neersighted/tgstation,Cyberboss/tgstation,Maks750rus/-tg-station,ZioZan/tgstation,Xhuis/AquaStation,nicbn/tgstation,Bawhoppen/-tg-station,Cheridan/tgstation,phil235/-tg-station,Time-Green/-tg-station-yog-rebase,Y0SH1M4S73R/-tg-station,Memendia/HippieStation13,Aranclanos/-tg-station,Fox-McCloud/-tg-station,CosmicScientist/-tg-station,greytide/greytide,Buggy123/-tg-station,Super3222/yogstation,Qwertyon666/Necro,utahclock/yogstation,McBawbaggings/HippieStation,Core0verload/-tg-station,Shadowlight213/-tg-station,Shadowlight213/-tg-station,matskuman5/yogstation,riftstation/riftstation,Aranclanos/-tg-station,MicroWorldwide/SS13-TG-station,Expletive/tgstation,Nickvr628/FTL13,TheOneForgotten/white,feemjmeem/-tg-station,kevinz000/-tg-station,loqoman/tgstation,CrAzYPiLoT-SS13/FTL13,feemjmeem/-tg-station,octareenroon91/-tg-station,Groxic/tgstation,ShadowDeath6/-tg-station-yog-rebase,Cyberboss/tgstation,CosmicScientist/-tg-station,OliBomby/yogstation-1,Aloraydrel/-tg-station,Tacolizard/tgstation,TheRealGLH/-tg-station,Iamgoofball/-tg-station,NicholasM10/-tg-station,Maks750rus/-tg-station,tigercat2000/-tg-station,Aloraydrel/-tg-station,Stealthkibbler/FTL13,ITBlackwood/FTL13,HippieStationCode/HippieStation13,WJohn/-tg-station,X-TheDark/yogstation,Jordie0608/-tg-station,Razharas/-tg-station,neersighted/tgstation,MicroWorldwide/SS13-TG-station,AuroranAI/FTL13,Poojawa/tgstation-fork,Aranclanos/-tg-station,athompson11/Soteria-v3,ChayseRamsay/Soteria-v3,Arianya/tgstation,MrStonedOne/tgstation,Jordie0608/tgstation,dannyy3566/FTL13,Niknakflak/-tg-station,Jordie0608/tgstation,Iamgoofball/-tg-station,TheVekter/-tg-station,securitycopper/-tg-station,Mark9013100/tgstation-m9,anconfuzedrock/tgstation,Robustin/tgstation,CPTANT/-tg-station,Zorking/white,Buggy123/-tg-station,Core0verload/-tg-station,WJohn/-tg-station,Cruix/-tg-station,Xhuis/-tg-station,Thunder12345/-tg-station,Tokiko1/tgstation,XDTM/tgstation,loqoman/tgstation,Xhuis/AquaStation,ShadowDeath6/-tg-station-yog-rebase,kevinz000/-tg-station,utahclock/yogstation,riftstation/riftstation,erwgd/-tg-station,McBawbaggings/HippieStation,utahclock/yogstation,QualityVan/tgstation,TheVekter/-tg-station,Zorking/white,ShadowDeath6/-tg-station-yog-rebase,QualityVan/tgstation,coiax/-tg-station,coiax/-tg-station,Yoshmaster/-tg-station,Xhuis/tgfork,Penguaro/tgstation,Jordie0608/-tg-station,nicbn/tgstation,Jordie0608/tgstation,AnturK/-tg-station,AnturK/-tg-station,Penguaro/tgstation,CosmicScientist/-tg-station,Groxic/yogstation,kevinz000/-tg-station,TheDreamweaver/-tg-station,Crexfu/tgstation,F-OS/tgstation,lordpidey/-tg-station,coiax/-tg-station,lzimann/-tg-station,Buggy123/-tg-station,anconfuzedrock/tgstation,AdamElTablawy/yogstation-1,utahclock/yogstation,Cheridan/-tg-station,Incoming5643/-tg-station,ChangelingRain/-tg-station,NicholasM10/-tg-station,JJRcop/-tg-station,Memendia/HippieStation,ChayseRamsay/Soteria-v3,Robustin/tgstation,posttk421/tgstation,PJB3005/tgstation,Tacolizard/tgstation,Cheridan/tgstation,Razharas/-tg-station,WJohn/-tg-station,Aranclanos/-tg-station,GuyonBroadway/HippieStation,Crexfu/tgstation,ShadowDeath6/-tg-station-yog-rebase,xxalpha/-tg-station,Mark9013100/tgstation-m9,Cruix/-tg-station-yog-rebase,Jordie0608/tgstation,TehZombehz/-tg-station,Incoming5643/-tg-station,Fox-McCloud/-tg-station,riftstation/riftstation,Kraseo/-tg-station,Incoming5643/-tg-station,Memendia/HippieStation,neersighted/tgstation,vcordie/tgstation,Profakos/tgstation,xxalpha/-tg-station,Xhuis/AquaStation,phil235/-tg-station,AnturK/-tg-station,optimumtact/-tg-station,Buggy123/-tg-station,Xhuis/tgfork,Cruix/-tg-station,HippieStation/HippieStation,feemjmeem/-tg-station,PJB3005/tgstation,InsaneHyena/tgstation,WJohn/-tg-station,HippieStationCode/HippieStation13,Groxic/tgstation,TheVekter/-tg-station,Cruix/-tg-station-yog-rebase,Memendia/HippieStation13,octareenroon91/-tg-station,ShizCalev/tgstation,Ultimate-Chimera/tgstation,Ultimate-Chimera/tgstation,Razharas/-tg-station,SamuelRowe/-tg-station,lzimann/-tg-station,nicbn/tgstation,Groxic/yogstation,Robustin/tgstation,Razharas/-tg-station,GunHog/-tg-station,dannyy3566/FTL13,securitycopper/-tg-station,LLA-Gaming/LS13,Yoshmaster/-tg-station,Kirill1243/-tg-station,ZioZan/tgstation,ITBlackwood/FTL13,nicbn/tgstation,balohmatevz/-tg-station,Qwertyon666/Necro,Iamgoofball/-tg-station,Tacolizard/tgstation,bear1ake/-tg-station,kyrahabattoir/-tg-station,anconfuzedrock/tgstation,Xhuis/tgfork,Cruix/-tg-station-yog-rebase,Kraseo/-tg-station,Bawhoppen/-tg-station,phil235/-tg-station,Memendia/HippieStation,Jalleo/-tg-station,blockheads/-tg-station,Jalleo/-tg-station,neersighted/tgstation,posttk421/tgstation,Anonus/-tg-station,matskuman5/yogstation,OliBomby/yogstation-1,loqoman/tgstation,F-OS/tgstation,paprka/-tg-station,xxalpha/-tg-station,paprka/-tg-station,lordpidey/-tg-station,Groxic/tgstation,yogstation13/-tg-station-yog-rebase,Hollexian/FTL13,ShizCalev/tgstation,LLA-Gaming/LS13,Osokorn/tgstation,anconfuzedrock/tgstation,F-OS/tgstation,securitycopper/-tg-station,Aranclanos/-tg-station,4dplanner/tgstation,dannno/-tg-station,JJRcop/tgstation,WJohn/-tg-station,GuyonBroadway/HippieStation,4dplanner/tgstation,Cyberboss/tgstation,ike709/FTL13,TalkingCactus/tgstation,tigercat2000/-tg-station,JStheguy/tgstation,Aranclanos/-tg-station,Arianya/tgstation,HippieStation/HippieStation,ChangelingRain/-tg-station,OBA-code/tgstation,Profakos/tgstation,utahclock/yogstation,riftstation/riftstation,TalkingCactus/tgstation,TalkingCactus/tgstation,Profakos/tgstation,TheOneForgotten/white,Maks750rus/-tg-station,Xhuis/-tg-station,lzimann/-tg-station,lzimann/-tg-station,X-TheDark/yogstation,TheSarkazmus/Faster-Than-Lizard-13,Fox-McCloud/-tg-station,chickenboy10/tgstation,Thunder12345/-tg-station,Cyberboss/tgstation,Time-Green/-tg-station-yog-rebase,lordpidey/-tg-station,matskuman5/yogstation,paprka/-tg-station,GuyonBroadway/HippieStation,ShizCalev/tgstation,LanCartwright/-tg-station,Jordie0608/tgstation,SamuelRowe/-tg-station,ChayseRamsay/Soteria-v3,Mervill/tgstation,CrAzYPiLoT-SS13/FTL13-1,Zostroll/yogstation,MrStonedOne/tgstation,kingofkosmos/-tg-station,Kirill1243/-tg-station,CrAzYPiLoT-SS13/FTL13,TheRealGLH/-tg-station,MicroWorldwide/SS13-TG-station,Valanthe500/Soteria-v3,Fox-McCloud/-tg-station,infinitystation/-tg-station,Groxic/yogstation,TheSarkazmus/Faster-Than-Lizard-13,tigercat2000/-tg-station,optimumtact/-tg-station,Kraseo/-tg-station,WJohn/-tg-station,4dplanner/tgstation,Memendia/HippieStation13,Cruix/-tg-station,utahclock/yogstation,A-t48/-tg-station,optimumtact/-tg-station,GuyonBroadway/HippieStation,Tacolizard/tgstation,dannyy3566/FTL13,riftstation/riftstation,riftstation/riftstation,Razharas/-tg-station,NicholasM10/-tg-station,infinitystation/-tg-station,AnturK/-tg-station,AnturK/-tg-station,Jalleo/-tg-station,kevinz000/-tg-station,McBawbaggings/HippieStation,LanCartwright/-tg-station,Xhuis/-tg-station,CrAzYPiLoT-SS13/FTL13,GuyonBroadway/HippieStation,Y0SH1M4S73R/-tg-station,infinitystation/-tg-station,InsaneHyena/tgstation,Profakos/tgstation,AnturK/-tg-station,Poojawa/tgstation-fork,MrStonedOne/tgstation,Stealthkibbler/FTL13,coiax/-tg-station,Incoming5643/-tg-station,JJRcop/tgstation,loqoman/tgstation,feemjmeem/-tg-station,ToGWtF/yogstation,PJB3005/tgstation,Buggy123/-tg-station,kyrahabattoir/-tg-station,xxalpha/-tg-station,kingofkosmos/-tg-station,TehZombehz/-tg-station,ShizCalev/tgstation,Fox-McCloud/-tg-station,bear1ake/-tg-station,ITBlackwood/FTL13,nicbn/tgstation,PKPenguin321/-tg-station,Super3222/yogstation,Niknakflak/-tg-station,Xhuis/tgfork,CPTANT/-tg-station,Penguaro/tgstation,octareenroon91/-tg-station,Cruix/-tg-station-yog-rebase,Tacolizard/tgstation,kyrahabattoir/-tg-station,Thunder12345/-tg-station,Kirill1243/-tg-station,dannno/-tg-station,kevinz000/-tg-station,GuyonBroadway/HippieStation,JStheguy/tgstation,ZioZan/tgstation,ShizCalev/tgstation,Kraseo/-tg-station,GunHog/-tg-station,Super3222/yogstation,checkraisefold/fulpstation,MrStonedOne/tgstation,xxalpha/-tg-station,QualityVan/tgstation,Memendia/HippieStation,Hollexian/FTL13,F-OS/tgstation,Iamgoofball/-tg-station,Memendia/HippieStation,JJRcop/-tg-station,paprka/-tg-station,hornygranny/-tg-station,blockheads/-tg-station,Thunder12345/-tg-station,paprka/-tg-station,Zostroll/yogstation,TheDreamweaver/-tg-station,OliBomby/yogstation-1,Xhuis/tgfork,JJRcop/tgstation,ChangelingRain/-tg-station,nullbear/-tg-station,XDTM/tgstation,Expletive/tgstation,ChangelingRain/-tg-station,ohnopigeons/tgstation,F-OS/tgstation,yogstation13/-tg-station-yog-rebase,ike709/FTL13,Xhuis/AquaStation,XDTM/tgstation,Expletive/tgstation,bear1ake/-tg-station,A-t48/-tg-station,AdamElTablawy/yogstation-1,Mark9013100/tgstation-m9,Robustin/tgstation,athompson11/Soteria-v3,Poojawa/tgstation-fork,Incoming5643/-tg-station,loqoman/tgstation,MicroWorldwide/SS13-TG-station,CPTANT/-tg-station,Buggy123/-tg-station,lordpidey/-tg-station,ToGWtF/yogstation,Mervill/tgstation,Xhuis/tgfork,PKPenguin321/-tg-station,JStheguy/tgstation,Y0SH1M4S73R/-tg-station,tgstation/-tg-station,Anonus/-tg-station,TheVekter/-tg-station,Poojawa/tgstation-fork,Jalleo/-tg-station,dannyy3566/FTL13,ohnopigeons/tgstation,kevinz000/-tg-station,Razharas/-tg-station,MicroWorldwide/SS13-TG-station,Groxic/tgstation,GuyonBroadway/HippieStation,yogstation13/-tg-station-yog-rebase,optimumtact/-tg-station,Valanthe500/Soteria-v3,MrStonedOne/tgstation,Core0verload/-tg-station,lordpidey/-tg-station,optimumtact/-tg-station,Xhuis/tgfork,Tacolizard/tgstation,LanCartwright/-tg-station,LegendaryPoro/FTL13,lordpidey/-tg-station,Arianya/tgstation,Groxic/yogstation,Robustin/tgstation,4dplanner/tgstation,chickenboy10/tgstation,ChangelingRain/-tg-station,Maks750rus/-tg-station,lzimann/tgstation,checkraisefold/fulpstation,ike709/FTL13,securitycopper/-tg-station,LegendaryPoro/FTL13,PKPenguin321/-tg-station,lzimann/tgstation,Incoming5643/-tg-station,Xhuis/tgfork,lzimann/tgstation,tgstation/tgstation,X-TheDark/yogstation,QualityVan/tgstation,Mervill/tgstation,greytide/greytide,loqoman/tgstation,Mark9013100/tgstation-m9,Ultimate-Chimera/tgstation,MrStonedOne/tgstation,neersighted/tgstation,ChangelingRain/-tg-station,feemjmeem/-tg-station,TheSarkazmus/Faster-Than-Lizard-13,Memendia/HippieStation13,Ultimate-Chimera/tgstation,HippieStation/HippieStation,AsV9/yogstation,Anonus/-tg-station,A-t48/-tg-station,Crexfu/tgstation,CosmicScientist/-tg-station,TehZombehz/-tg-station,ToGWtF/yogstation,riftstation/riftstation,TheVekter/-tg-station,coiax/-tg-station,4dplanner/tgstation,erwgd/-tg-station,McBawbaggings/HippieStation,nicbn/tgstation,MrStonedOne/-tg-station,Incoming5643/-tg-station,SamuelRowe/-tg-station,JJRcop/tgstation,Aranclanos/-tg-station,AsV9/yogstation,CPTANT/-tg-station,TheVekter/-tg-station,posttk421/tgstation,Hollexian/FTL13,Arianya/tgstation,TheDreamweaver/-tg-station,kevinz000/-tg-station,MrStonedOne/-tg-station,Memendia/HippieStation,Haevacht/tgstation,greytide/greytide,Cruix/-tg-station,neersighted/tgstation,QualityVan/tgstation,McBawbaggings/HippieStation,greytide/greytide,paprka/-tg-station,Super3222/yogstation,AsV9/yogstation,PKPenguin321/-tg-station,lordpidey/-tg-station,XDTM/tgstation,coiax/-tg-station,Robustin/tgstation,Bawhoppen/-tg-station,Niknakflak/-tg-station,Valanthe500/Soteria-v3,4dplanner/tgstation,Nickvr628/FTL13