From d07ddadedb8a92e4efde64cd0236754a3b9192bf Mon Sep 17 00:00:00 2001
From: raylu <raylu@cmu.edu>
Date: Tue, 26 Oct 2010 23:56:10 -0400
Subject: [PATCH] Intial calc. Need to handle html unescape and superscripts
---
cmd-google.go | 41 +++++++++++++++++++++++++++++++++++++++++
handler.go | 1 +
2 files changed, 42 insertions(+)
diff --git a/cmd-google.go b/cmd-google.go
index 5430a5b..6eebcde 100644
--- a/cmd-google.go
+++ b/cmd-google.go
@@ -3,12 +3,15 @@ package main
import (
"irc"
"fmt"
+ "os"
"strings"
"http"
"json"
"io/ioutil"
"container/vector"
"html"
+ "regexp"
+ "strconv"
)
const googleAPIKey = "ABQIAAAA6-N_jl4ETgtMf2M52JJ_WRQjQjNunkAJHIhTdFoxe8Di7fkkYhRRcys7ZxNbH3MIy_MKKcEO4-9_Ag"
@@ -79,3 +82,41 @@ func sayTr(conn *irc.Conn, target string, data interface{}) {
say(conn, target, html.UnescapeString(trText))
}
}
+
+func calc(conn *irc.Conn, nick *irc.Nick, args, target string) {
+ if args == "" {
+ return
+ }
+ url := fmt.Sprintf("http://www.google.com/ig/calculator?hl=en&q=%s&key=%s", http.URLEscape(args), googleAPIKey)
+ response, _, err := http.Get(url)
+ defer response.Body.Close()
+ if err != nil {
+ say(conn, target, "%s: Error while requesting calculation", nick.Nick); return
+ }
+
+ b, err := ioutil.ReadAll(response.Body)
+ if err != nil {
+ say(conn, target, "%s: Error while downloading calculation", nick.Nick); return
+ }
+
+ re := regexp.MustCompile(`{lhs: "(.*)",rhs: "(.*)",error: "(.*)",icc: (true|false)}`)
+ result := re.FindSubmatch(b)
+ if len(result) != 5 || len(result[3]) > 1 {
+ say(conn, target, "%s: Error while calculating.", nick.Nick); return
+ }
+
+ str := fmt.Sprintf("%s = %s", result[1], result[2])
+ output := ""
+ // decode unicode escapes
+ for str != "" {
+ var err os.Error
+ var rune int
+ rune, _, str, err = strconv.UnquoteChar(str, 0)
+ if err != nil {
+ say(conn, target, "%s: Error while decoding.", nick.Nick); return
+ }
+ output += string(rune)
+ }
+ output = html.UnescapeString(output)
+ say(conn, target, output)
+}
diff --git a/handler.go b/handler.go
index 3679489..c69005d 100644
--- a/handler.go
+++ b/handler.go
@@ -35,6 +35,7 @@ var commands = map [string]func(*irc.Conn, *irc.Nick, string, string) {
// google
"tr": translate,
+ "calc": calc,
}
func handlePrivmsg(conn *irc.Conn, line *irc.Line) {