#!/bin/bash

# casts an i ching 
# use: ching [number]
#      with number looks up that hexagram, otherwise casts 
      
function cast {
 l=0
 until [ $l == 6 ]
  do
  i=0
  k=0
  until [ $i == 3 ] 
   do
   j=`cat /dev/urandom | tr -dc '0-9' | fold -w 1 | head -1`
   let j=j%2
   if [ $j == 0 ]
    then
    j=2
   else
    j=3
   fi
   let i=i+1
   let k=k+j
  done
  let k=k%2
  if [ $k == 0 ]
   then
   echo -n ":"
  else
   echo -n "|"
  fi
  let l=l+1
 done
 echo
}

if [ "$1" ]
 then
 if [ "$1" -gt 0 ] && [ "$1" -lt 65 ] 
  then
  if [ $SSH_TTY ]
   then
   lynx "http://www.afpc.asso.fr/wengu/wg/wengu.php?no=$1&l=Yijing"
  else
   open "http://www.afpc.asso.fr/wengu/wg/wengu.php?no=$1&l=Yijing"
  fi
  exit
 fi
fi

hex=`cast`
echo $hex | sed 's/:/------   ------/g;s/|/---------------/g' | fold -w 15
cat $0 | grep $hex | awk '{ printf $1 ") ";for(i=3;i<=NF;i++) printf $i " "}'
echo
exit

01 |||||| Force (乾 qián) 	The Creative
02 :::::: Field (坤 kūn) 	The Receptive
03 |:::|: Sprouting (屯 chún) 	Difficulty at the Beginning
04 :|:::| Enveloping (蒙 méng) 	Youthful Folly
05 |||:|: Attending (需 xū) 	Waiting
06 :|:||| Arguing (訟 sòng) 	Conflict
07 :|:::: Leading (師 shī) 	The Army
08 ::::|: Grouping (比 bǐ) 	Holding Together
09 |||:|| Small Accumulating (小畜 xiǎo chù) 	Small Taming
10 ||:||| Treading (履 lǚ) 	Treading (Conduct)
11 |||::: Prevading (泰 tài) 	Peace
12 :::||| Obstruction (否 pǐ) 	Standstill
13 |:|||| Concording People (同人 tóng rén) 	Fellowship
14 ||||:| Great Possessing (大有 dà yǒu) 	Great Possession
15 ::|::: Humbling (謙 qiān) 	Modesty
16 :::|:: Providing-For (豫 yù) 	Enthusiasm
17 |::||: Following (隨 suí) 	Following
18 :||::| Corrupting (蠱 gǔ) 	Work on the Decayed
19 ||:::: Nearing (臨 lín) 	Approach
20 ::::|| Viewing (觀 guān) 	Contemplation
21 |::|:| Gnawing Bite (噬嗑 shì kè) 	Biting Through
22 |:|::| Adorning (賁 bì) 	Grace
23 :::::| Stripping (剝 bō) 	Splitting Apart
24 |::::: Returning (復 fù) 	Return
25 |::||| Without Embroiling (無妄 wú wàng) 	Innocence
26 |||::| Great Accumulating (大畜 dà chù) 	Great Taming
27 |::::| Swallowing (頤 yí) 	Mouth Corners
28 :||||: Great Exceeding (大過 dà guò) 	Great Preponderance
29 :|::|: Gorge (坎 kǎn) 	The Abysmal Water
30 |:||:| Radiance (離 lí) 	The Clinging
31 ::|||: Conjoining (咸 xián) 	Influence
32 :|||:: Persevering (恆 héng) 	Duration
33 ::|||| Retiring (遯 dùn) 	Retreat
34 ||||:: Great Invigorating (大壯 dà zhuàng) 	Great Power
35 :::|:| Prospering (晉 jìn) 	Progress
36 |:|::: Brightness Hiding (明夷 míng yí) 	Darkening of the Light
37 |:|:|| Dwelling People (家人 jiā rén) 	The Family
38 ||:|:| Polarising (睽 kuí) 	Opposition
39 ::|:|: Limping (蹇 jiǎn) 	Obstruction
40 :|:|:: Taking-Apart (解 xiè) 	Deliverance
41 ||:::| Diminishing (損 sǔn) 	Decrease
42 |:::|| Augmenting (益 yì) 	Increase
43 |||||: Parting (夬 guài) 	Breakthrough
44 :||||| Coupling (姤 gòu) 	Coming to Meet
45 :::||: Clustering (萃 cuì) 	Gathering Together
46 :||::: Ascending (升 shēng) 	Pushing Upward
47 :|:||: Confining (困 kùn) 	Oppression
48 :||:|: Welling (井 jǐng) 	The Well
49 :|||:| Skinning (革 gé) 	Revolution
50 |:|||: Holding (鼎 dǐng) 	The Cauldron
51 |::|:: Shake (震 zhèn) 	Arousing
52 ::|::| Bound (艮 gèn) 	The Keeping Still
53 ::|:|| Infiltrating (漸 jiàn) 	Development
54 ||:|:: Converting The Maiden (歸妹 guī mèi) 	The Marrying Maiden
55 |:||:: Abounding (豐 fēng) 	Abundance
56 ::||:| Sojourning (旅 lǚ) 	The Wanderer
57 :||:|| Ground (巽 xùn) 	The Gentle
58 ||:||: Open (兌 duì) 	The Joyous
59 :|::|| Dispersing (渙 huàn) 	Dispersion
60 ||::|: Articulating (節 jié) 	Limitation
61 ||::|| Centre Confirming (中孚 zhōng fú) 	Inner Truth
62 ::||:: Small Exceeding (小過 xiǎo guò) 	Small Preponderance
63 |:|:|: Already Fording (既濟 jì jì) 	After Completion
64 :|:|:| Not-Yet Fording (未濟 wèi jì) 	Before Completion