Nota - Não deixe de ver a atualização no final desta resposta para obter um link para o JREPL.BAT superior que substitui o REPL.BAT
JREPL.BAT 7.0 e superior, que suporta nativamente unicode (UTF-16LE) por meio da /UTF
opção, assim como qualquer outro conjunto de caracteres, incluindo UTF-8, via ADO !!!!
Eu escrevi um pequeno utilitário JScript / lote híbrido chamado REPL.BAT que é muito conveniente para modificar arquivos ASCII (ou ASCII estendido) por meio da linha de comando ou de um arquivo em lotes. O script puramente nativo não requer a instalação de nenhum executável de terceiros e funciona em qualquer versão moderna do Windows a partir do XP. Também é muito rápido, especialmente quando comparado a soluções em lote puras.
O REPL.BAT simplesmente lê stdin, executa uma pesquisa e substituição de regex JScript e grava o resultado em stdout.
Aqui está um exemplo trivial de como substituir foo por bar no test.txt, assumindo que REPL.BAT está na sua pasta atual ou, melhor ainda, em algum lugar do seu PATH:
type test.txt|repl "foo" "bar" >test.txt.new
move /y test.txt.new test.txt
Os recursos de regex JScript o tornam muito poderoso, especialmente a capacidade do texto de substituição de referenciar substrings capturados do texto de pesquisa.
Incluí várias opções no utilitário que o tornam bastante poderoso. Por exemplo, combinar as opções M
e X
permite a modificação de arquivos binários! A M
opção Multi-line permite pesquisas em várias linhas. A X
opção padrão de substituição eXtended fornece sequências de escape que permitem a inclusão de qualquer valor binário no texto de substituição.
O utilitário inteiro pode ter sido gravado como JScript puro, mas o arquivo em lote híbrido elimina a necessidade de especificar explicitamente o CSCRIPT toda vez que você deseja usar o utilitário.
Aqui está o script REPL.BAT. A documentação completa está incorporada no script.
@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));
}
ATUALIZAÇÃO IMPORTANTE
Interrompi o desenvolvimento do REPL.BAT e o substituí pelo JREPL.BAT. Este utilitário mais recente tem todas as mesmas funcionalidades do REPL.BAT, além de muito mais:
- Suporte Unicode UTF-16LE por meio de recursos unicode CSCRIPT nativos e qualquer outro conjunto de caracteres (incluindo UTF-8) via ADO.
- Leia diretamente de / grave diretamente em um arquivo: não há necessidade de canais, redirecionamento ou comando de movimentação.
- Incorporar JScript fornecido pelo usuário
- Recurso de tradução semelhante ao unix tr, mas também suporta pesquisa regex e substituição de JScript
- Descartar texto não correspondente
- Prefixar linhas de saída com número de linha
- e mais...
Como sempre, a documentação completa é incorporada ao script.
A solução trivial original agora é ainda mais simples:
jrepl "foo" "bar" /f test.txt /o -
A versão atual do JREPL.BAT está disponível no DosTips . Leia todas as postagens subsequentes no segmento para ver exemplos de uso e um histórico do desenvolvimento.