From 2cb99ae1aa0c9696dc5a61fe00d3ce2f45af844d Mon Sep 17 00:00:00 2001
From: Yi Zhang <zhangyiss@icloud.com>
Date: Sat, 29 Sep 2018 22:28:38 +0800
Subject: [PATCH] =?UTF-8?q?=E6=9B=B4=E6=96=B0dispHelp=E6=96=87=E4=BB=B6?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

从固定宽度显示改变为按单词分割显示
---
 dispOptions.sh | 236 +++++++++++++++++++++++++++++++++++--------------
 1 file changed, 170 insertions(+), 66 deletions(-)

diff --git a/dispOptions.sh b/dispOptions.sh
index 87664b4..58f1051 100755
--- a/dispOptions.sh
+++ b/dispOptions.sh
@@ -1,92 +1,196 @@
 #!/bin/bash
 # 一些输出帮助文档的函数
 # 显示命令简介 两个参数 命令名称 命令简介
+#function dispTitle(){
+#	winWidth=`tput cols`
+#
+#	cutLength=`expr ${winWidth} - 19`
+#	segment=${2:0:${cutLength}}
+#	printf "%s\n%-10s%s\n" "${1}" " " "${segment}"
+#
+#	times=1
+#	while (( ${#segment} == ${cutLength} ))
+#	do
+#		st=`expr ${cutLength} \* ${times}`
+#		segment=${2:${st}:${cutLength}}
+#		printf "%-10s%s\n" " " "${segment}"
+#		times=`expr ${times} + 1`
+#	done
+#	printf "\n"
+#}
+
 function dispTitle(){
 	winWidth=`tput cols`
+	message=${2}
 
-	cutLength=`expr ${winWidth} - 19`
-	segment=${2:0:${cutLength}}
-	printf "%s\n%-10s%s\n" "${1}" " " "${segment}"
+	printf "%s\n%-9s" "${1}"
 
-	times=1
-	while (( ${#segment} == ${cutLength} ))
-	do
-		st=`expr ${cutLength} \* ${times}`
-		segment=${2:${st}:${cutLength}}
-		printf "%-10s%s\n" " " "${segment}"
-		times=`expr ${times} + 1`
+	head_length=19
+	print_length=${head_length}
+	for segment in ${message[@]}; do
+		print_length=`expr ${print_length} + ${#segment} + 1`
+		if [[ ${print_length} -le ${winWidth} ]]; then
+			printf " %s" "${segment}"
+		else
+			print_length=`expr ${head_length} + ${#segment} + 1`
+			printf "\n%-10s%s" " " "${segment}"
+		fi
 	done
-	printf "\n"
+	printf "\n\n"
 }
+
 # 显示作者信息 一个参数 作者信息
+#function dispAuthorInfo(){
+#	winWidth=`tput cols`
+#
+#	cutLength=`expr ${winWidth} - 19`
+#	segment=${1:0:${cutLength}}
+#
+#	printf "%-10s%s\n" "Author:" "${segment}"
+#
+#	times=1
+#	while (( ${#segment} == ${cutLength} ))
+#	do
+#		st=`expr ${cutLength} \* ${times}`
+#		segment=${1:${st}:${cutLength}}
+#		printf "%-10s%s\n" " " "${segment}"
+#		times=`expr ${times} + 1`
+#	done
+#	printf "\n"
+#}
+
 function dispAuthorInfo(){
 	winWidth=`tput cols`
+	message=${1}
 
-	cutLength=`expr ${winWidth} - 19`
-	segment=${1:0:${cutLength}}
+	printf "%-9s" "Author:"
 
-	printf "%-10s%s\n" "Author:" "${segment}"
+	head_length=19
+	print_length=${head_length}
+	for segment in ${message[@]}; do
+		print_length=`expr ${print_length} + ${#segment} + 1`
+		if [[ ${print_length} -le ${winWidth} ]]; then
+			printf " %s" "${segment}"
+		else
+			print_length=`expr ${head_length} + ${#segment} + 1`
+			printf "\n%-10s%s" " " "${segment}"
+		fi
+	done
+	printf "\n\n"
+}
 
-	times=1
-	while (( ${#segment} == ${cutLength} ))
-	do
-		st=`expr ${cutLength} \* ${times}`
-		segment=${1:${st}:${cutLength}}
-		printf "%-10s%s\n" " " "${segment}"
-		times=`expr ${times} + 1`
+# 显示用法 一个参数 做法信息
+#function dispUsage(){
+#	winWidth=`tput cols`
+#
+#	cutLength=`expr ${winWidth} - 19`
+#	segment=${1:0:${cutLength}}
+#
+#	printf "%-10s%s\n" "Usage:" "${segment}"
+#
+#	times=1
+#	while (( ${#segment} == ${cutLength} ))
+#	do
+#		st=`expr ${cutLength} \* ${times}`
+#		segment=${1:${st}:${cutLength}}
+#		printf "%-10s%s\n" " " "${segment}"
+#		times=`expr ${times} + 1`
+#	done
+#	printf "\nOptions:\n"
+#}
+
+function dispUsage(){
+	winWidth=`tput cols`
+	message=${1}
+
+	printf "%-9s" "Usage:"
+
+	head_length=19
+	print_length=${head_length}
+	for segment in ${message[@]}; do
+		print_length=`expr ${print_length} + ${#segment} + 1`
+		if [[ ${print_length} -le ${winWidth} ]]; then
+			printf " %s" "${segment}"
+		else
+			print_length=`expr ${head_length} + ${#segment} + 1`
+			printf "\n%-10s%s" " " "${segment}"
+		fi
+	done
+	printf "\n\n"
+}
+
+# 短命令说明 两个参数 命令符号 命令说明
+#function dispOptionShort(){
+#	winWidth=`tput cols`
+#
+#	cutLength=`expr ${winWidth} - 19`
+#	segment=${2:0:${cutLength}}
+#	printf "%-4s%-6s%s\n" " " "${1}" "${segment}"
+#
+#	times=1
+#	while (( ${#segment} == ${cutLength} ))
+#	do
+#		st=`expr ${cutLength} \* ${times}`
+#		segment=${2:${st}:${cutLength}}
+#		printf "%-10s%s\n" " " "${segment}"
+#		times=`expr ${times} + 1`
+#	done
+#}
+
+function dispOptionShort(){
+	winWidth=`tput cols`
+	message=${2}
+
+	printf "%-4s%-5s" " " "${1}"
+
+	head_length=19
+	print_length=${head_length}
+	for segment in ${message[@]}; do
+		print_length=`expr ${print_length} + ${#segment} + 1`
+		if [[ ${print_length} -le ${winWidth} ]]; then
+			printf " %s" "${segment}"
+		else
+			print_length=`expr ${head_length} + ${#segment} + 1`
+			printf "\n%-10s%s" " " "${segment}"
+		fi
 	done
 	printf "\n"
 }
-# 显示用法 一个参数 做法信息
-function dispUsage(){
-	winWidth=`tput cols`
 
-	cutLength=`expr ${winWidth} - 19`
-	segment=${1:0:${cutLength}}
-
-	printf "%-10s%s\n" "Usage:" "${segment}"
-
-	times=1
-	while (( ${#segment} == ${cutLength} ))
-	do
-		st=`expr ${cutLength} \* ${times}`
-		segment=${1:${st}:${cutLength}}
-		printf "%-10s%s\n" " " "${segment}"
-		times=`expr ${times} + 1`
-	done
-	printf "\nOptions:\n"
-}
-# 短命令说明 两个参数 命令符号 命令说明
-function dispOptionShort(){
-	winWidth=`tput cols`
-
-	cutLength=`expr ${winWidth} - 19`
-	segment=${2:0:${cutLength}}
-	printf "%-4s%-6s%s\n" " " "${1}" "${segment}"
-
-	times=1
-	while (( ${#segment} == ${cutLength} ))
-	do
-		st=`expr ${cutLength} \* ${times}`
-		segment=${2:${st}:${cutLength}}
-		printf "%-10s%s\n" " " "${segment}"
-		times=`expr ${times} + 1`
-	done
-}
 # 长命令说明 三个参数 短命令符号 长命令符号 命令说明
+#function dispOptionLong(){
+#	winWidth=`tput cols`
+#
+#	cutLength=`expr ${winWidth} - 32`
+#	segment=${3:0:${cutLength}}
+#	printf "%-4s%-6s%-12s%s\n" " " "${1}" "${2}" "${segment}"
+#
+#	times=1
+#	while (( ${#segment} == ${cutLength} ))
+#	do
+#		st=`expr ${cutLength} \* ${times}`
+#		segment=${3:${st}:${cutLength}}
+#		printf "%-22s%s\n" " " "${segment}"
+#		times=`expr ${times} + 1`
+#	done
+#}
+
 function dispOptionLong(){
 	winWidth=`tput cols`
+	message=${3}
 
-	cutLength=`expr ${winWidth} - 32`
-	segment=${3:0:${cutLength}}
-	printf "%-4s%-6s%-12s%s\n" " " "${1}" "${2}" "${segment}"
+	printf "%-4s%-6s%-11s" " " "${1}" "${2}"
 
-	times=1
-	while (( ${#segment} == ${cutLength} ))
-	do
-		st=`expr ${cutLength} \* ${times}`
-		segment=${3:${st}:${cutLength}}
-		printf "%-22s%s\n" " " "${segment}"
-		times=`expr ${times} + 1`
+	head_length=32
+	print_length=${head_length}
+	for segment in ${message[@]}; do
+		print_length=`expr ${print_length} + ${#segment} + 1`
+		if [[ ${print_length} -le ${winWidth} ]]; then
+			printf " %s" "${segment}"
+		else
+			print_length=`expr ${head_length} + ${#segment} + 1`
+			printf "\n%-22s%s" " " "${segment}"
+		fi
 	done
+	printf "\n"
 }
\ No newline at end of file