命令行参数中的一些字符被批处理文件忽略,这取决于 DOS 版本,不管它们是否“转义”,并且通常取决于它们在命令行中的位置:
commas (",") are replaced by spaces, unless they are part of a string in
double quotes
semicolons (";") are replaced by spaces, unless they are part of a string in
double quotes
"=" characters are sometimes replaced by spaces, not if they are part of a
string in double quotes
the first forward slash ("/") is replaced by a space only if it immediately
follows the command, without a leading space
multiple spaces are replaced by a single space, unless they are part of a
string in double quotes
tabs are replaced by a single space
leading spaces before the first command line argument are ignored
:parse
IF "%~1"=="" GOTO endparse
IF "%~1"=="-a" REM do something
IF "%~1"=="-b" REM do something else
SHIFT
GOTO parse
:endparse
REM ready for action!
@ Jon 的 :parse/:endparse计划是一个很好的开始,我很感激他的初步通过,但是如果你认为 Windows 的折磨人的批处理系统会让你那么轻松... 好吧,我的朋友,你会大吃一惊的。我花了一整天的时间来研究这个邪恶的东西,在经历了许多痛苦的研究和实验之后,我终于找到了一个可行的实用工具。
@ECHO OFF
SETLOCAL
REM FooBar parameter demo
REM By Garret Wilson
SET CMD=%~1
IF "%CMD%" == "" (
GOTO usage
)
SET FOO=
SET DEFAULT_FOO=default
SET BAR=
SET BAZ=
SHIFT
:args
SET PARAM=%~1
SET ARG=%~2
IF "%PARAM%" == "--foo" (
SHIFT
IF NOT "%ARG%" == "" (
IF NOT "%ARG:~0,2%" == "--" (
SET FOO=%ARG%
SHIFT
) ELSE (
SET FOO=%DEFAULT_FOO%
)
) ELSE (
SET FOO=%DEFAULT_FOO%
)
) ELSE IF "%PARAM%" == "--bar" (
SHIFT
IF NOT "%ARG%" == "" (
SET BAR=%ARG%
SHIFT
) ELSE (
ECHO Missing bar value. 1>&2
ECHO:
GOTO usage
)
) ELSE IF "%PARAM%" == "--baz" (
SHIFT
SET BAZ=true
) ELSE IF "%PARAM%" == "" (
GOTO endargs
) ELSE (
ECHO Unrecognized option %1. 1>&2
ECHO:
GOTO usage
)
GOTO args
:endargs
ECHO Command: %CMD%
IF NOT "%FOO%" == "" (
ECHO Foo: %FOO%
)
IF NOT "%BAR%" == "" (
ECHO Bar: %BAR%
)
IF "%BAZ%" == "true" (
ECHO Baz
)
REM TODO do something with FOO, BAR, and/or BAZ
GOTO :eof
:usage
ECHO FooBar
ECHO Usage: foobar ^<command^> [--foo [^<fooval^>]] [--bar ^<barval^>] [--baz]
EXIT /B 1