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10REM >EIRC
20REM The simplest IRC client you can write. Maybe.
30REM (C) Justin Fletcher, 1998
40:
50END=PAGE+1024*16
60REM Change these if you wish
70host$="irc.stealth.net"
80port=6667
90nick$="eirc"
100ourchan$="#acorn"
110:
120REM Start connecting to a host
130SYS "ESocket_ConnectToHost",host$,port TO handle
140REPEAT
150 SYS "ESocket_CheckState",handle TO state
160 IF state<-1 THENSYS "ESocket_Forget",handle:SYS "ESocket_DecodeState",state TO a$:ERROR 1,"Failed ("+a$+")"
170UNTIL state=4
180:
190REM We are now connected
200PRINT"Connected"
210:
220REM Log on to the server
230SYS "ESocket_SendLine",handle,"USER "+nick$+" x x :"+nick$
240SYS "ESocket_SendLine",handle,"NICK "+nick$
250SYS "ESocket_SendLine",handle,"JOIN "+ourchan$
260REM Install a monitor so that we don't waste time
270SYS "ESocket_Monitor",0,handle TO monitor
280SYS "ESocket_ResetMonitor",monitor,0 TO polladdr%
290:
300REM If we crash, we should tidy up after ourselves
310ON ERROR SYS "XESocket_Forget",handle:SYS "XESocket_Forget",monitor:ERROR EXT ERR,REPORT$+" at line "+STR$ERL
320:
330REM Memory buffer for our data
340bufsize%=1024
350DIM buf% bufsize%
360:
370input$="":REM The input line
380REPEAT
390 REM In a taskwindow we should yield until there is data
400 SYS "OS_UpCall",6,polladdr%
410 IF !polladdr%<>0 THEN
420 REM Reset the monitor for the time being
430 SYS "ESocket_ResetMonitor",monitor,0 TO polladdr%
440 REPEAT
450 REM Read lines from the connection until this buffer is empty
460 SYS "ESocket_ReadLine",handle,buf%,bufsize%,%100 TO ,str,len
470 IF str<>0 AND $str<>"" THEN
480 line$=$str
490 IF LEFT$(line$,4)="PING" THEN
500 REM Ping's must be replied to immediately
510 SYS "ESocket_SendLine",handle,"PONG "+MID$(line$,6)
520 ELSE
530 REM Extract source info
540 from$=MID$(LEFT$(line$,INSTR(line$+" "," ")-1),2)
550 line$=MID$(line$,INSTR(line$+" "," ")+1)
560 uid$=LEFT$(from$,INSTR(from$+"!","!")-1)
570 com$=LEFT$(line$,INSTR(line$+" "," ")-1)
580 line$=MID$(line$,INSTR(line$+" "," ")+1)
590 REM remove the input line
600 IF input$<>"" THENFORI=1TOLEN(input$):VDU127:NEXT
610 CASE FNupper(com$) OF
620 WHEN "PRIVMSG"
630 REM Extract the destination
640 chan$=LEFT$(line$,INSTR(line$+" "," ")-1)
650 line$=MID$(line$,INSTR(line$+" "," ")+2):REM Skip :
660 IF LEFT$(line$,1)=CHR$1 THEN
670 REM CTCP, so respond to it
680 line$=MID$(line$,2,LEN(line$)-2)
690 com$=LEFT$(line$,INSTR(line$+" "," ")-1)
700 line$=MID$(line$,INSTR(line$+" "," ")+1)
710 CASE FNupper(com$) OF
720 WHEN "PING"
730 REM Ping lag timing
740 line$="PONG "+line$
750 PRINTuid$;" pinged us"
760 WHEN "VERSION"
770 REM Version checking
780 line$="VERSION EIRC 1.00 (c) Justin Fletcher"
790 PRINTuid$;" wanted our version"
800 WHEN "ACTION"
810 PRINT"* ";uid$;" ";line$
820 line$=""
830 OTHERWISE
840 REM everything else is an error
850 line$="ERRMSG "+com$+" not understood"
860 PRINT"CTCP '";com$;"' from ";uid$;" (";line$;")"
870 ENDCASE
880 IF line$<>"" THEN
890 SYS "ESocket_SendLine",handle,"NOTICE "+uid$+" :"+CHR$1+line$+CHR$1
900 ENDIF
910 ELSE
920 REM Somebody said something...
930 PRINT"<";uid$;"> ";FNsafe(line$)
940 ENDIF
950 WHEN "JOIN"
960 REM We (or someone else) has joined the channel
970 chan$=LEFT$(line$,INSTR(line$+" "," ")):REM Skip :
980 IF LEFT$(chan$,1)=":" THENchan$=MID$(chan$,2)
990 PRINTuid$;" has joined ";chan$
1000 WHEN "PART"
1010 REM Someone else has left the channel
1020 chan$=LEFT$(line$,INSTR(line$+" "," ")-1)
1030 IF LEFT$(chan$,1)=":" THENchan$=MID$(chan$,2)
1040 PRINTuid$;" has left ";chan$
1050 WHEN "QUIT"
1060 REM Someone else has quit IRC
1070 PRINTuid$;" quit IRC"
1080 OTHERWISE
1090 REM Some unknown command
1100 PRINTuid$;":";com$;":";FNsafe(line$)
1110 ENDCASE
1120 REM Re-display our input line
1130 PRINTinput$;
1140 ENDIF
1150 ENDIF
1160 UNTIL str=0
1170 ENDIF
1180 b$=INKEY$(0)
1190 IF b$<>"" THEN
1200 CASE b$ OF
1210 WHEN CHR$13
1220 SYS "ESocket_SendLine",handle,"PRIVMSG "+ourchan$+" :"+input$
1230 REM Remove the line
1240 IF input$<>"" THENFORI=1TOLEN(input$):VDU127:NEXT
1250 REM We said it...
1260 PRINT"<"+nick$+"> ";input$
1270 input$=""
1280 WHEN CHR$127,CHR$8
1290 REM Backspace
1300 IF input$<>"" THENVDU127
1310 input$=LEFT$(input$)
1320 OTHERWISE
1330 REM Ad to current input
1340 input$+=b$
1350 PRINTb$;
1360 ENDCASE
1370 ENDIF
1380 REM Has the socket closed
1390 SYS "ESocket_Closed",handle,%0 TO closed
1400UNTIL closed
1410SYS "ESocket_Forget",handle
1420SYS "ESocket_Forget",monitor
1430END
1440:
1450DEFFNupper(a$):LOCAL c$,b$,I
1460FORI=1TOLEN(a$)
1470c$=MID$(a$,I,1):IF c$>="a"ANDc$<="z"THENc$=CHR$(ASC(c$)-32)
1480b$+=c$:NEXT:=b$
1490
1500REM Remove control codes
1510DEFFNsafe(line$)
1520LOCAL I
1530FORI=1TOLEN(line$)
1540 IF MID$(line$,I,1)<" " THENMID$(line$,I,1)="*"
1550NEXT
1560=line$
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