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數天前重新發命了一個輪子,引來高手,正是拋磚引玉,有賺頭 
今天再做一個輪子,是 ruby 下的 capticalize 方法,雖然這個
方法我要到 ruby 版求助,等價的 命令為,
echo uNIX |sed 's/\(.\)\(..*\)/\u\1\L\2/'
GNU sed 4.1.X version
就是把第一個字母改成大寫,其它小寫
#! /bin/bash
# translate first char of word from lowercase to uppercase, other chars
# translate from uppercase to lowercase if it is in uppercase
# Usage: $0 argument
# Idea comes from Ruby's method `capticalize', written in pure bash.
# CYGWIN_NT-6.0 User-PC 1.5.24, GNU bash version 3.2.17
# jul 2, 2007 twf_cc@yahoo.com.hk
# public domain
# init some stuff ... 
input=$* ; output="" ; ilength=${#input}
# function, transtle first char to uppercase
first_char_to_upper() {
# split given word with ${var:length ffset}
first=${input:0:1}
# tramslate the first char first
case "$first" in
a) first=A ;; b) first=B ;; c) first=C ;;
d) first=D ;; e) first=E ;; f) first=F ;;
g) first=G ;; h) first=H ;; i) first=I ;;
j) first=J ;; k) first=K ;; l) first=L ;;
m) first=M ;; n) first=N ;; o) first=O ;;
p) first=P ;; q) first=Q ;; r) first=R ;;
s) first=S ;; t) first=T ;; u) first=U ;;
v) first=V ;; w) first=W ;; x) first=X ;;
y) first=Y ;; z) first=Z ;; *) first=$first ;;
esac
# storage of the result.
output="${output}${first}"
}
# function, translate other chars to lowercase
other_char_to_lower() {
# init an empty var for result storage
other_out=""
# translate other chars to lowercase if it is
# in uppercase. One by one old fashion.. 
for (( i=1 ; i<$ilength ; i++ ))
do
# split remained chars still using
# ${var:lengthffset},progress in looping
other=${input i:1}
# translate remained chars to lowercase
case "$other" in
A) other=a ;; B) other=b ;; C) other=c ;;
D) other=d ;; E) other=e ;; F) other=f ;;
G) other=g ;; H) other=h ;; I) other=i ;;
J) other=j ;; K) other=k ;; L) other=l ;;
M) other=m ;; N) other=n ;; O) other=o ;;
P) other=p ;; Q) other=q ;; R) other=r ;;
S) other=s ;; T) other=t ;; U) other=u ;;
V) other=v ;; W) other=w ;; X) other=x ;;
Y) other=y ;; Z) other=z ;; *) other=$other ;;
esac
# storage of the result
other_out="${other_out}${other}"
done
}
# operation of two function above and print result
capticalize() {
first_char_to_upper "$input"
other_char_to_lower "$input"
output="${output}${other_out}"
echo "$output"
}
# ok, we are going to translate it.
capticalize "$input"
歡迎交流,有錯請指出.謝謝 |
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发表于 2007-07-02 19:53
发表于 2007-07-02 20:31
