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+function SetUpServer() {
+ SetUpEliza()
+ TopHeader = \
+ "<HTML><title>An HTTP-based System with GAWK</title>\
+ <HEAD><META HTTP-EQUIV=\"Content-Type\"\
+ CONTENT=\"text/html; charset=iso-8859-1\"></HEAD>\
+ <BODY BGCOLOR=\"#ffffff\" TEXT=\"#000000\"\
+ LINK=\"#0000ff\" VLINK=\"#0000ff\"\
+ ALINK=\"#0000ff\"> <A NAME=\"top\">"
+ TopDoc = "\
+ <h2>Please choose one of the following actions:</h2>\
+ <UL>\
+ <LI>\
+ <A HREF=" MyPrefix "/AboutServer>About this server</A>\
+ </LI><LI>\
+ <A HREF=" MyPrefix "/AboutELIZA>About Eliza</A></LI>\
+ <LI>\
+ <A HREF=" MyPrefix \
+ "/StartELIZA>Start talking to Eliza</A></LI></UL>"
+ TopFooter = "</BODY></HTML>"
+}
+function HandleGET() {
+ # A real HTTP server would treat some parts of the URI as a file name.
+ # We take parts of the URI as menu choices and go on accordingly.
+ if(MENU[2] == "AboutServer") {
+ Document = "This is not a CGI script.\
+ This is an httpd, an HTML file, and a CGI script all \
+ in one GAWK script. It needs no separate www-server, \
+ no installation, and no root privileges.\
+ <p>To run it, do this:</p><ul>\
+ <li> start this script with \"gawk -f httpserver.awk\",</li>\
+ <li> and on the same host let your www browser open location\
+ \"http://localhost:8080\"</li>\
+ </ul>\<p>\ Details of HTTP come from:</p><ul>\
+ <li>Hethmon: Illustrated Guide to HTTP</p>\
+ <li>RFC 2068</li></ul><p>JK 14.9.1997</p>"
+ } else if (MENU[2] == "AboutELIZA") {
+ Document = "This is an implementation of the famous ELIZA\
+ program by Joseph Weizenbaum. It is written in GAWK and\
+/bin/sh: expad: command not found
+ } else if (MENU[2] == "StartELIZA") {
+ gsub(/\+/, " ", GETARG["YouSay"])
+ # Here we also have to substitute coded special characters
+ Document = "<form method=GET>" \
+ "<h3>" ElizaSays(GETARG["YouSay"]) "</h3>\
+ <p><input type=text name=YouSay value=\"\" size=60>\
+ <br><input type=submit value=\"Tell her about it\"></p></form>"
+ }
+}
+function ElizaSays(YouSay) {
+ if (YouSay == "") {
+ cost = 0
+ answer = "HI, IM ELIZA, TELL ME YOUR PROBLEM"
+ } else {
+ q = toupper(YouSay)
+ gsub("'", "", q)
+ if(q == qold) {
+ answer = "PLEASE DONT REPEAT YOURSELF !"
+ } else {
+ if (index(q, "SHUT UP") > 0) {
+ answer = "WELL, PLEASE PAY YOUR BILL. ITS EXACTLY ... $"\
+ int(100*rand()+30+cost/100)
+ } else {
+ qold = q
+ w = "-" # no keyword recognized yet
+ for (i in k) { # search for keywords
+ if (index(q, i) > 0) {
+ w = i
+ break
+ }
+ }
+ if (w == "-") { # no keyword, take old subject
+ w = wold
+ subj = subjold
+ } else { # find subject
+ subj = substr(q, index(q, w) + length(w)+1)
+ wold = w
+ subjold = subj # remember keyword and subject
+ }
+ for (i in conj)
+ gsub(i, conj[i], q) # conjugation
+ # from all answers to this keyword, select one randomly
+ answer = r[indices[int(split(k[w], indices) * rand()) + 1]]
+ # insert subject into answer
+ gsub("_", subj, answer)
+ }
+ }
+ }
+ cost += length(answer) # for later payment : 1 cent per character
+ return answer
+}
+function SetUpEliza() {
+ srand()
+ wold = "-"
+ subjold = " "
+
+ # table for conjugation
+ conj[" ARE " ] = " AM "
+ conj["WERE " ] = "WAS "
+ conj[" YOU " ] = " I "
+ conj["YOUR " ] = "MY "
+ conj[" IVE " ] =\
+ conj[" I HAVE " ] = " YOU HAVE "
+ conj[" YOUVE " ] =\
+ conj[" YOU HAVE "] = " I HAVE "
+ conj[" IM " ] =\
+ conj[" I AM " ] = " YOU ARE "
+ conj[" YOURE " ] =\
+ conj[" YOU ARE " ] = " I AM "
+
+ # table of all answers
+ r[1] = "DONT YOU BELIEVE THAT I CAN _"
+ r[2] = "PERHAPS YOU WOULD LIKE TO BE ABLE TO _ ?"
+ r[3] = "YOU WANT ME TO BE ABLE TO _ ?"
+ r[4] = "PERHAPS YOU DONT WANT TO _ "
+ r[5] = "DO YOU WANT TO BE ABLE TO _ ?"
+ r[6] = "WHAT MAKES YOU THINK I AM _ ?"
+ r[7] = "DOES IT PLEASE YOU TO BELIEVE I AM _ ?"
+ r[8] = "PERHAPS YOU WOULD LIKE TO BE _ ?"
+ r[9] = "DO YOU SOMETIMES WISH YOU WERE _ ?"
+ r[10] = "DONT YOU REALLY _ ?"
+ r[11] = "WHY DONT YOU _ ?"
+ r[12] = "DO YOU WISH TO BE ABLE TO _ ?"
+ r[13] = "DOES THAT TROUBLE YOU ?"
+ r[14] = "TELL ME MORE ABOUT SUCH FEELINGS"
+ r[15] = "DO YOU OFTEN FEEL _ ?"
+ r[16] = "DO YOU ENJOY FEELING _ ?"
+ r[17] = "DO YOU REALLY BELIEVE I DONT _ ?"
+ r[18] = "PERHAPS IN GOOD TIME I WILL _ "
+ r[19] = "DO YOU WANT ME TO _ ?"
+ r[20] = "DO YOU THINK YOU SHOULD BE ABLE TO _ ?"
+ r[21] = "WHY CANT YOU _ ?"
+ r[22] = "WHY ARE YOU INTERESTED IN WHETHER OR NOT I AM _ ?"
+ r[23] = "WOULD YOU PREFER IF I WERE NOT _ ?"
+ r[24] = "PERHAPS IN YOUR FANTASIES I AM _ "
+ r[25] = "HOW DO YOU KNOW YOU CANT _ ?"
+ r[26] = "HAVE YOU TRIED ?"
+ r[27] = "PERHAPS YOU CAN NOW _ "
+ r[28] = "DID YOU COME TO ME BECAUSE YOU ARE _ ?"
+ r[29] = "HOW LONG HAVE YOU BEEN _ ?"
+ r[30] = "DO YOU BELIEVE ITS NORMAL TO BE _ ?"
+ r[31] = "DO YOU ENJOY BEING _ ?"
+ r[32] = "WE WERE DISCUSSING YOU -- NOT ME"
+ r[33] = "Oh, I _"
+ r[34] = "YOU'RE NOT REALLY TALKING ABOUT ME, ARE YOU ?"
+ r[35] = "WHAT WOULD IT MEAN TO YOU, IF YOU GOT _ ?"
+ r[36] = "WHY DO YOU WANT _ ?"
+ r[37] = "SUPPOSE YOU SOON GOT _"
+ r[38] = "WHAT IF YOU NEVER GOT _ ?"
+ r[39] = "I SOMETIMES ALSO WANT _"
+ r[40] = "WHY DO YOU ASK ?"
+ r[41] = "DOES THAT QUESTION INTEREST YOU ?"
+ r[42] = "WHAT ANSWER WOULD PLEASE YOU THE MOST ?"
+ r[43] = "WHAT DO YOU THINK ?"
+ r[44] = "ARE SUCH QUESTIONS IN YOUR MIND OFTEN ?"
+ r[45] = "WHAT IS IT THAT YOU REALLY WANT TO KNOW ?"
+ r[46] = "HAVE YOU ASKED ANYONE ELSE ?"
+ r[47] = "HAVE YOU ASKED SUCH QUESTIONS BEFORE ?"
+ r[48] = "WHAT ELSE COMES TO MIND WHEN YOU ASK THAT ?"
+ r[49] = "NAMES DON'T INTEREST ME"
+ r[50] = "I DONT CARE ABOUT NAMES -- PLEASE GO ON"
+ r[51] = "IS THAT THE REAL REASON ?"
+ r[52] = "DONT ANY OTHER REASONS COME TO MIND ?"
+ r[53] = "DOES THAT REASON EXPLAIN ANYTHING ELSE ?"
+ r[54] = "WHAT OTHER REASONS MIGHT THERE BE ?"
+ r[55] = "PLEASE DON'T APOLOGIZE !"
+ r[56] = "APOLOGIES ARE NOT NECESSARY"
+ r[57] = "WHAT FEELINGS DO YOU HAVE WHEN YOU APOLOGIZE ?"
+ r[58] = "DON'T BE SO DEFENSIVE"
+ r[59] = "WHAT DOES THAT DREAM SUGGEST TO YOU ?"
+ r[60] = "DO YOU DREAM OFTEN ?"
+ r[61] = "WHAT PERSONS APPEAR IN YOUR DREAMS ?"
+ r[62] = "ARE YOU DISTURBED BY YOUR DREAMS ?"
+ r[63] = "HOW DO YOU DO ... PLEASE STATE YOUR PROBLEM"
+ r[64] = "YOU DON'T SEEM QUITE CERTAIN"
+ r[65] = "WHY THE UNCERTAIN TONE ?"
+ r[66] = "CAN'T YOU BE MORE POSITIVE ?"
+ r[67] = "YOU AREN'T SURE ?"
+ r[68] = "DON'T YOU KNOW ?"
+ r[69] = "WHY NO _ ?"
+ r[70] = "DON'T SAY NO, IT'S ALWAYS SO NEGATIVE"
+ r[71] = "WHY NOT ?"
+ r[72] = "ARE YOU SURE ?"
+ r[73] = "WHY NO ?"
+ r[74] = "WHY ARE YOU CONCERNED ABOUT MY _ ?"
+ r[75] = "WHAT ABOUT YOUR OWN _ ?"
+ r[76] = "CAN'T YOU THINK ABOUT A SPECIFIC EXAMPLE ?"
+ r[77] = "WHEN ?"
+ r[78] = "WHAT ARE YOU THINKING OF ?"
+ r[79] = "REALLY, ALWAYS ?"
+ r[80] = "DO YOU REALLY THINK SO ?"
+ r[81] = "BUT YOU ARE NOT SURE YOU _ "
+ r[82] = "DO YOU DOUBT YOU _ ?"
+ r[83] = "IN WHAT WAY ?"
+ r[84] = "WHAT RESEMBLANCE DO YOU SEE ?"
+ r[85] = "WHAT DOES THE SIMILARITY SUGGEST TO YOU ?"
+ r[86] = "WHAT OTHER CONNECTION DO YOU SEE ?"
+ r[87] = "COULD THERE REALLY BE SOME CONNECTIONS ?"
+ r[88] = "HOW ?"
+ r[89] = "YOU SEEM QUITE POSITIVE"
+ r[90] = "ARE YOU SURE ?"
+ r[91] = "I SEE"
+ r[92] = "I UNDERSTAND"
+ r[93] = "WHY DO YOU BRING UP THE TOPIC OF FRIENDS ?"
+ r[94] = "DO YOUR FRIENDS WORRY YOU ?"
+ r[95] = "DO YOUR FRIENDS PICK ON YOU ?"
+ r[96] = "ARE YOU SURE YOU HAVE ANY FRIENDS ?"
+ r[97] = "DO YOU IMPOSE ON YOUR FRIENDS ?"
+ r[98] = "PERHAPS YOUR LOVE FOR FRIENDS WORRIES YOU"
+ r[99] = "DO COMPUTERS WORRY YOU ?"
+ r[100] = "ARE YOU TALKING ABOUT ME IN PARTICULAR ?"
+ r[101] = "ARE YOU FRIGHTENED BY MACHINES ?"
+ r[102] = "WHY DO YOU MENTION COMPUTERS ?"
+ r[103] = "WHAT DO YOU THINK MACHINES HAVE TO DO WITH YOUR PROBLEMS ?"
+ r[104] = "DON'T YOU THINK COMPUTERS CAN HELP PEOPLE ?"
+ r[105] = "WHAT IS IT ABOUT MACHINES THAT WORRIES YOU ?"
+ r[106] = "SAY, DO YOU HAVE ANY PSYCHOLOGICAL PROBLEMS ?"
+ r[107] = "WHAT DOES THAT SUGGEST TO YOU ?"
+ r[108] = "I SEE"
+ r[109] = "IM NOT SURE I UNDERSTAND YOU FULLY"
+ r[110] = "COME COME ELUCIDATE YOUR THOUGHTS"
+ r[111] = "CAN YOU ELABORATE ON THAT ?"
+ r[112] = "THAT IS QUITE INTERESTING"
+ r[113] = "WHY DO YOU HAVE PROBLEMS WITH MONEY ?"
+ r[114] = "DO YOU THINK MONEY IS EVERYTHING ?"
+ r[115] = "ARE YOU SURE THAT MONEY IS THE PROBLEM ?"
+ r[116] = "I THINK WE WANT TO TALK ABOUT YOU, NOT ABOUT ME"
+ r[117] = "WHAT'S ABOUT ME ?"
+ r[118] = "WHY DO YOU ALWAYS BRING UP MY NAME ?"
+ # table for looking up answers that
+ # fit to a certain keyword
+ k["CAN YOU"] = "1 2 3"
+ k["CAN I"] = "4 5"
+ k["YOU ARE"] =\
+ k["YOURE"] = "6 7 8 9"
+ k["I DONT"] = "10 11 12 13"
+ k["I FEEL"] = "14 15 16"
+ k["WHY DONT YOU"] = "17 18 19"
+ k["WHY CANT I"] = "20 21"
+ k["ARE YOU"] = "22 23 24"
+ k["I CANT"] = "25 26 27"
+ k["I AM"] =\
+ k["IM "] = "28 29 30 31"
+ k["YOU "] = "32 33 34"
+ k["I WANT"] = "35 36 37 38 39"
+ k["WHAT"] =\
+ k["HOW"] =\
+ k["WHO"] =\
+ k["WHERE"] =\
+ k["WHEN"] =\
+ k["WHY"] = "40 41 42 43 44 45 46 47 48"
+ k["NAME"] = "49 50"
+ k["CAUSE"] = "51 52 53 54"
+ k["SORRY"] = "55 56 57 58"
+ k["DREAM"] = "59 60 61 62"
+ k["HELLO"] =\
+ k["HI "] = "63"
+ k["MAYBE"] = "64 65 66 67 68"
+ k[" NO "] = "69 70 71 72 73"
+ k["YOUR"] = "74 75"
+ k["ALWAYS"] = "76 77 78 79"
+ k["THINK"] = "80 81 82"
+ k["LIKE"] = "83 84 85 86 87 88 89"
+ k["YES"] = "90 91 92"
+ k["FRIEND"] = "93 94 95 96 97 98"
+ k["COMPUTER"] = "99 100 101 102 103 104 105"
+ k["-"] = "106 107 108 109 110 111 112"
+ k["MONEY"] = "113 114 115"
+ k["ELIZA"] = "116 117 118"
+}
generated by cgit v1.2.3 (git 2.25.1) at 2025-05-04 20:08:46 +0000