नोट - बेहतर JREPL.BAT के लिंक के लिए इस उत्तर के अंत में अपडेट देखना सुनिश्चित करें जो REPL.BAT
JREPL.BAT 7.0 और इसके बाद के संस्करण में यूनिकोड (UTF-16LE) को /UTFविकल्प के माध्यम से समर्थन करता है , साथ ही साथ अन्य वर्ण सेट, सहित UTF-8, ADO के माध्यम से !!!!
मैंने REPL.BAT नामक एक छोटी संकर JScript / बैच उपयोगिता लिखी है जो ASCII (या विस्तारित ASCII) फ़ाइलों को कमांड लाइन या बैच फ़ाइल के माध्यम से संशोधित करने के लिए बहुत सुविधाजनक है। विशुद्ध रूप से मूल स्क्रिप्ट को किसी भी 3 पार्टी के निष्पादन योग्य इंस्टॉलेशन की आवश्यकता नहीं होती है, और यह XP के बाद से किसी भी आधुनिक विंडोज संस्करण पर काम करता है। यह भी बहुत तेज है, खासकर जब शुद्ध बैच समाधानों की तुलना में।
REPL.BAT केवल स्टड पढ़ता है, एक JScript रेगेक्स खोज करता है और प्रतिस्थापित करता है, और परिणाम को स्टडआउट लिखता है।
यहाँ कैसे परीक्षण में बार के साथ फू को बदलने के लिए एक तुच्छ उदाहरण दिया गया है। मान लें कि REPL.BAT आपके मौजूदा फ़ोल्डर में है, या बेहतर अभी तक, आपके पेटीएम में कहीं है:
type test.txt|repl "foo" "bar" >test.txt.new
move /y test.txt.new test.txt
JScript regex क्षमताएं इसे बहुत शक्तिशाली बनाती हैं, विशेष रूप से खोज पाठ से कैप्चर किए गए सब्सट्रिंग को संदर्भित करने के लिए प्रतिस्थापन पाठ की क्षमता।
मैंने उपयोगिता में कई विकल्पों को शामिल किया है जो इसे काफी शक्तिशाली बनाते हैं। उदाहरण के लिए, संयोजन Mऔर Xविकल्प द्विआधारी फ़ाइलों के संशोधन को सक्षम करते हैं! Mमल्टी लाइन विकल्प कई पंक्तियों में खोजों के लिए अनुमति देता है। Xविस्तारित प्रतिस्थापन पैटर्न विकल्प बच दृश्यों कि प्रतिस्थापन टेक्स्ट में कहीं भी बाइनरी मान के शामिल किए जाने को सक्षम प्रदान करता है।
संपूर्ण उपयोगिता को शुद्ध JScript के रूप में लिखा जा सकता था, लेकिन हर बार जब आप उपयोगिता का उपयोग करना चाहते हैं तो हाइब्रिड बैच फ़ाइल CSCRIPT को स्पष्ट रूप से निर्दिष्ट करने की आवश्यकता को समाप्त कर देती है।
यहाँ REPL.BAT स्क्रिप्ट है। पूर्ण प्रलेखन स्क्रिप्ट के भीतर एम्बेडेड है।
@if (@X)==(@Y) @end /* Harmless hybrid line that begins a JScript comment
::************ Documentation ***********
::REPL.BAT version 6.2
:::
:::REPL Search Replace [Options [SourceVar]]
:::REPL /?[REGEX|REPLACE]
:::REPL /V
:::
::: Performs a global regular expression search and replace operation on
::: each line of input from stdin and prints the result to stdout.
:::
::: Each parameter may be optionally enclosed by double quotes. The double
::: quotes are not considered part of the argument. The quotes are required
::: if the parameter contains a batch token delimiter like space, tab, comma,
::: semicolon. The quotes should also be used if the argument contains a
::: batch special character like &, |, etc. so that the special character
::: does not need to be escaped with ^.
:::
::: If called with a single argument of /?, then prints help documentation
::: to stdout. If a single argument of /?REGEX, then opens up Microsoft's
::: JScript regular expression documentation within your browser. If a single
::: argument of /?REPLACE, then opens up Microsoft's JScript REPLACE
::: documentation within your browser.
:::
::: If called with a single argument of /V, case insensitive, then prints
::: the version of REPL.BAT.
:::
::: Search - By default, this is a case sensitive JScript (ECMA) regular
::: expression expressed as a string.
:::
::: JScript regex syntax documentation is available at
::: http://msdn.microsoft.com/en-us/library/ae5bf541(v=vs.80).aspx
:::
::: Replace - By default, this is the string to be used as a replacement for
::: each found search expression. Full support is provided for
::: substituion patterns available to the JScript replace method.
:::
::: For example, $& represents the portion of the source that matched
::: the entire search pattern, $1 represents the first captured
::: submatch, $2 the second captured submatch, etc. A $ literal
::: can be escaped as $$.
:::
::: An empty replacement string must be represented as "".
:::
::: Replace substitution pattern syntax is fully documented at
::: http://msdn.microsoft.com/en-US/library/efy6s3e6(v=vs.80).aspx
:::
::: Options - An optional string of characters used to alter the behavior
::: of REPL. The option characters are case insensitive, and may
::: appear in any order.
:::
::: A - Only print altered lines. Unaltered lines are discarded.
::: If the S options is present, then prints the result only if
::: there was a change anywhere in the string. The A option is
::: incompatible with the M option unless the S option is present.
:::
::: B - The Search must match the beginning of a line.
::: Mostly used with literal searches.
:::
::: E - The Search must match the end of a line.
::: Mostly used with literal searches.
:::
::: I - Makes the search case-insensitive.
:::
::: J - The Replace argument represents a JScript expression.
::: The expression may access an array like arguments object
::: named $. However, $ is not a true array object.
:::
::: The $.length property contains the total number of arguments
::: available. The $.length value is equal to n+3, where n is the
::: number of capturing left parentheses within the Search string.
:::
::: $[0] is the substring that matched the Search,
::: $[1] through $[n] are the captured submatch strings,
::: $[n+1] is the offset where the match occurred, and
::: $[n+2] is the original source string.
:::
::: Arguments $[0] through $[10] may be abbreviated as
::: $1 through $10. Argument $[11] and above must use the square
::: bracket notation.
:::
::: L - The Search is treated as a string literal instead of a
::: regular expression. Also, all $ found in the Replace string
::: are treated as $ literals.
:::
::: M - Multi-line mode. The entire contents of stdin is read and
::: processed in one pass instead of line by line, thus enabling
::: search for \n. This also enables preservation of the original
::: line terminators. If the M option is not present, then every
::: printed line is terminated with carriage return and line feed.
::: The M option is incompatible with the A option unless the S
::: option is also present.
:::
::: Note: If working with binary data containing NULL bytes,
::: then the M option must be used.
:::
::: S - The source is read from an environment variable instead of
::: from stdin. The name of the source environment variable is
::: specified in the next argument after the option string. Without
::: the M option, ^ anchors the beginning of the string, and $ the
::: end of the string. With the M option, ^ anchors the beginning
::: of a line, and $ the end of a line.
:::
::: V - Search and Replace represent the name of environment
::: variables that contain the respective values. An undefined
::: variable is treated as an empty string.
:::
::: X - Enables extended substitution pattern syntax with support
::: for the following escape sequences within the Replace string:
:::
::: \\ - Backslash
::: \b - Backspace
::: \f - Formfeed
::: \n - Newline
::: \q - Quote
::: \r - Carriage Return
::: \t - Horizontal Tab
::: \v - Vertical Tab
::: \xnn - Extended ASCII byte code expressed as 2 hex digits
::: \unnnn - Unicode character expressed as 4 hex digits
:::
::: Also enables the \q escape sequence for the Search string.
::: The other escape sequences are already standard for a regular
::: expression Search string.
:::
::: Also modifies the behavior of \xnn in the Search string to work
::: properly with extended ASCII byte codes.
:::
::: Extended escape sequences are supported even when the L option
::: is used. Both Search and Replace support all of the extended
::: escape sequences if both the X and L opions are combined.
:::
::: Return Codes: 0 = At least one change was made
::: or the /? or /V option was used
:::
::: 1 = No change was made
:::
::: 2 = Invalid call syntax or incompatible options
:::
::: 3 = JScript runtime error, typically due to invalid regex
:::
::: REPL.BAT was written by Dave Benham, with assistance from DosTips user Aacini
::: to get \xnn to work properly with extended ASCII byte codes. Also assistance
::: from DosTips user penpen diagnosing issues reading NULL bytes, along with a
::: workaround. REPL.BAT was originally posted at:
::: http://www.dostips.com/forum/viewtopic.php?f=3&t=3855
:::
::************ Batch portion ***********
@echo off
if .%2 equ . (
if "%~1" equ "/?" (
<"%~f0" cscript //E:JScript //nologo "%~f0" "^:::" "" a
exit /b 0
) else if /i "%~1" equ "/?regex" (
explorer "http://msdn.microsoft.com/en-us/library/ae5bf541(v=vs.80).aspx"
exit /b 0
) else if /i "%~1" equ "/?replace" (
explorer "http://msdn.microsoft.com/en-US/library/efy6s3e6(v=vs.80).aspx"
exit /b 0
) else if /i "%~1" equ "/V" (
<"%~f0" cscript //E:JScript //nologo "%~f0" "^::(REPL\.BAT version)" "$1" a
exit /b 0
) else (
call :err "Insufficient arguments"
exit /b 2
)
)
echo(%~3|findstr /i "[^SMILEBVXAJ]" >nul && (
call :err "Invalid option(s)"
exit /b 2
)
echo(%~3|findstr /i "M"|findstr /i "A"|findstr /vi "S" >nul && (
call :err "Incompatible options"
exit /b 2
)
cscript //E:JScript //nologo "%~f0" %*
exit /b %errorlevel%
:err
>&2 echo ERROR: %~1. Use REPL /? to get help.
exit /b
************* JScript portion **********/
var rtn=1;
try {
var env=WScript.CreateObject("WScript.Shell").Environment("Process");
var args=WScript.Arguments;
var search=args.Item(0);
var replace=args.Item(1);
var options="g";
if (args.length>2) options+=args.Item(2).toLowerCase();
var multi=(options.indexOf("m")>=0);
var alterations=(options.indexOf("a")>=0);
if (alterations) options=options.replace(/a/g,"");
var srcVar=(options.indexOf("s")>=0);
if (srcVar) options=options.replace(/s/g,"");
var jexpr=(options.indexOf("j")>=0);
if (jexpr) options=options.replace(/j/g,"");
if (options.indexOf("v")>=0) {
options=options.replace(/v/g,"");
search=env(search);
replace=env(replace);
}
if (options.indexOf("x")>=0) {
options=options.replace(/x/g,"");
if (!jexpr) {
replace=replace.replace(/\\\\/g,"\\B");
replace=replace.replace(/\\q/g,"\"");
replace=replace.replace(/\\x80/g,"\\u20AC");
replace=replace.replace(/\\x82/g,"\\u201A");
replace=replace.replace(/\\x83/g,"\\u0192");
replace=replace.replace(/\\x84/g,"\\u201E");
replace=replace.replace(/\\x85/g,"\\u2026");
replace=replace.replace(/\\x86/g,"\\u2020");
replace=replace.replace(/\\x87/g,"\\u2021");
replace=replace.replace(/\\x88/g,"\\u02C6");
replace=replace.replace(/\\x89/g,"\\u2030");
replace=replace.replace(/\\x8[aA]/g,"\\u0160");
replace=replace.replace(/\\x8[bB]/g,"\\u2039");
replace=replace.replace(/\\x8[cC]/g,"\\u0152");
replace=replace.replace(/\\x8[eE]/g,"\\u017D");
replace=replace.replace(/\\x91/g,"\\u2018");
replace=replace.replace(/\\x92/g,"\\u2019");
replace=replace.replace(/\\x93/g,"\\u201C");
replace=replace.replace(/\\x94/g,"\\u201D");
replace=replace.replace(/\\x95/g,"\\u2022");
replace=replace.replace(/\\x96/g,"\\u2013");
replace=replace.replace(/\\x97/g,"\\u2014");
replace=replace.replace(/\\x98/g,"\\u02DC");
replace=replace.replace(/\\x99/g,"\\u2122");
replace=replace.replace(/\\x9[aA]/g,"\\u0161");
replace=replace.replace(/\\x9[bB]/g,"\\u203A");
replace=replace.replace(/\\x9[cC]/g,"\\u0153");
replace=replace.replace(/\\x9[dD]/g,"\\u009D");
replace=replace.replace(/\\x9[eE]/g,"\\u017E");
replace=replace.replace(/\\x9[fF]/g,"\\u0178");
replace=replace.replace(/\\b/g,"\b");
replace=replace.replace(/\\f/g,"\f");
replace=replace.replace(/\\n/g,"\n");
replace=replace.replace(/\\r/g,"\r");
replace=replace.replace(/\\t/g,"\t");
replace=replace.replace(/\\v/g,"\v");
replace=replace.replace(/\\x[0-9a-fA-F]{2}|\\u[0-9a-fA-F]{4}/g,
function($0,$1,$2){
return String.fromCharCode(parseInt("0x"+$0.substring(2)));
}
);
replace=replace.replace(/\\B/g,"\\");
}
search=search.replace(/\\\\/g,"\\B");
search=search.replace(/\\q/g,"\"");
search=search.replace(/\\x80/g,"\\u20AC");
search=search.replace(/\\x82/g,"\\u201A");
search=search.replace(/\\x83/g,"\\u0192");
search=search.replace(/\\x84/g,"\\u201E");
search=search.replace(/\\x85/g,"\\u2026");
search=search.replace(/\\x86/g,"\\u2020");
search=search.replace(/\\x87/g,"\\u2021");
search=search.replace(/\\x88/g,"\\u02C6");
search=search.replace(/\\x89/g,"\\u2030");
search=search.replace(/\\x8[aA]/g,"\\u0160");
search=search.replace(/\\x8[bB]/g,"\\u2039");
search=search.replace(/\\x8[cC]/g,"\\u0152");
search=search.replace(/\\x8[eE]/g,"\\u017D");
search=search.replace(/\\x91/g,"\\u2018");
search=search.replace(/\\x92/g,"\\u2019");
search=search.replace(/\\x93/g,"\\u201C");
search=search.replace(/\\x94/g,"\\u201D");
search=search.replace(/\\x95/g,"\\u2022");
search=search.replace(/\\x96/g,"\\u2013");
search=search.replace(/\\x97/g,"\\u2014");
search=search.replace(/\\x98/g,"\\u02DC");
search=search.replace(/\\x99/g,"\\u2122");
search=search.replace(/\\x9[aA]/g,"\\u0161");
search=search.replace(/\\x9[bB]/g,"\\u203A");
search=search.replace(/\\x9[cC]/g,"\\u0153");
search=search.replace(/\\x9[dD]/g,"\\u009D");
search=search.replace(/\\x9[eE]/g,"\\u017E");
search=search.replace(/\\x9[fF]/g,"\\u0178");
if (options.indexOf("l")>=0) {
search=search.replace(/\\b/g,"\b");
search=search.replace(/\\f/g,"\f");
search=search.replace(/\\n/g,"\n");
search=search.replace(/\\r/g,"\r");
search=search.replace(/\\t/g,"\t");
search=search.replace(/\\v/g,"\v");
search=search.replace(/\\x[0-9a-fA-F]{2}|\\u[0-9a-fA-F]{4}/g,
function($0,$1,$2){
return String.fromCharCode(parseInt("0x"+$0.substring(2)));
}
);
search=search.replace(/\\B/g,"\\");
} else search=search.replace(/\\B/g,"\\\\");
}
if (options.indexOf("l")>=0) {
options=options.replace(/l/g,"");
search=search.replace(/([.^$*+?()[{\\|])/g,"\\$1");
if (!jexpr) replace=replace.replace(/\$/g,"$$$$");
}
if (options.indexOf("b")>=0) {
options=options.replace(/b/g,"");
search="^"+search
}
if (options.indexOf("e")>=0) {
options=options.replace(/e/g,"");
search=search+"$"
}
var search=new RegExp(search,options);
var str1, str2;
if (srcVar) {
str1=env(args.Item(3));
str2=str1.replace(search,jexpr?replFunc:replace);
if (!alterations || str1!=str2) if (multi) {
WScript.Stdout.Write(str2);
} else {
WScript.Stdout.WriteLine(str2);
}
if (str1!=str2) rtn=0;
} else if (multi){
var buf=1024;
str1="";
while (!WScript.StdIn.AtEndOfStream) {
str1+=WScript.StdIn.Read(buf);
buf*=2
}
str2=str1.replace(search,jexpr?replFunc:replace);
WScript.Stdout.Write(str2);
if (str1!=str2) rtn=0;
} else {
while (!WScript.StdIn.AtEndOfStream) {
str1=WScript.StdIn.ReadLine();
str2=str1.replace(search,jexpr?replFunc:replace);
if (!alterations || str1!=str2) WScript.Stdout.WriteLine(str2);
if (str1!=str2) rtn=0;
}
}
} catch(e) {
WScript.Stderr.WriteLine("JScript runtime error: "+e.message);
rtn=3;
}
WScript.Quit(rtn);
function replFunc($0, $1, $2, $3, $4, $5, $6, $7, $8, $9, $10) {
var $=arguments;
return(eval(replace));
}
महत्वपूर्ण अद्यतन
मैंने REPL.BAT का विकास रोक दिया है, और इसे JREPL.BAT के साथ बदल दिया है। इस नई उपयोगिता में REPL.BAT की समान कार्यक्षमता है, और भी बहुत कुछ:
- यूनिकोड UTF-16LE देशी CSCRIPT यूनिकोड क्षमताओं के माध्यम से समर्थन करता है, और ADO के माध्यम से किसी भी अन्य वर्ण सेट (UTF-8 सहित)।
- सीधे एक फाइल से सीधे लिखें / लिखें: पाइप, पुनर्निर्देशन या चाल कमांड की कोई आवश्यकता नहीं है।
- शामिल उपयोगकर्ता JScript की आपूर्ति की
- अनुवाद की सुविधा यूनिक्स ट्रे के समान है, केवल यह रेगेक्स खोज और जेस्क्रिप्ट प्रतिस्थापन का भी समर्थन करता है
- गैर-मिलान पाठ छोड़ें
- पंक्ति संख्या के साथ उपसर्ग आउटपुट लाइनें
- और अधिक...
हमेशा की तरह, पूर्ण दस्तावेज़ स्क्रिप्ट के भीतर एम्बेडेड है।
मूल तुच्छ समाधान अब और भी सरल है:
jrepl "foo" "bar" /f test.txt /o -
JREPL.BAT का वर्तमान संस्करण DosTips पर उपलब्ध है । उपयोग के उदाहरणों और विकास के इतिहास को देखने के लिए धागे में बाद की सभी पोस्ट पढ़ें।