/[pcre]/code/trunk/doc/pcretest.1
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revision 517 by ph10, Tue Mar 30 11:11:52 2010 UTC revision 518 by ph10, Tue May 18 15:47:01 2010 UTC
# Line 165  effect as they do in Perl. For example: Line 165  effect as they do in Perl. For example:
165  .sp  .sp
166    /caseless/i    /caseless/i
167  .sp  .sp
168  The following table shows additional modifiers for setting PCRE options that do  The following table shows additional modifiers for setting PCRE compile-time
169  not correspond to anything in Perl:  options that do not correspond to anything in Perl:
170  .sp  .sp
171      \fB/8\fP              PCRE_UTF8
172      \fB/?\fP              PCRE_NO_UTF8_CHECK
173    \fB/A\fP              PCRE_ANCHORED    \fB/A\fP              PCRE_ANCHORED
174    \fB/C\fP              PCRE_AUTO_CALLOUT    \fB/C\fP              PCRE_AUTO_CALLOUT
175    \fB/E\fP              PCRE_DOLLAR_ENDONLY    \fB/E\fP              PCRE_DOLLAR_ENDONLY
# Line 175  not correspond to anything in Perl: Line 177  not correspond to anything in Perl:
177    \fB/J\fP              PCRE_DUPNAMES    \fB/J\fP              PCRE_DUPNAMES
178    \fB/N\fP              PCRE_NO_AUTO_CAPTURE    \fB/N\fP              PCRE_NO_AUTO_CAPTURE
179    \fB/U\fP              PCRE_UNGREEDY    \fB/U\fP              PCRE_UNGREEDY
180      \fB/W\fP              PCRE_UCP
181    \fB/X\fP              PCRE_EXTRA    \fB/X\fP              PCRE_EXTRA
182    \fB/<JS>\fP           PCRE_JAVASCRIPT_COMPAT    \fB/<JS>\fP           PCRE_JAVASCRIPT_COMPAT
183    \fB/<cr>\fP           PCRE_NEWLINE_CR    \fB/<cr>\fP           PCRE_NEWLINE_CR
# Line 185  not correspond to anything in Perl: Line 188  not correspond to anything in Perl:
188    \fB/<bsr_anycrlf>\fP  PCRE_BSR_ANYCRLF    \fB/<bsr_anycrlf>\fP  PCRE_BSR_ANYCRLF
189    \fB/<bsr_unicode>\fP  PCRE_BSR_UNICODE    \fB/<bsr_unicode>\fP  PCRE_BSR_UNICODE
190  .sp  .sp
191  Those specifying line ending sequences are literal strings as shown, but the  The modifiers that are enclosed in angle brackets are literal strings as shown,
192  letters can be in either case. This example sets multiline matching with CRLF  including the angle brackets, but the letters can be in either case. This
193  as the line ending sequence:  example sets multiline matching with CRLF as the line ending sequence:
194  .sp  .sp
195    /^abc/m<crlf>    /^abc/m<crlf>
196  .sp  .sp
197  Details of the meanings of these PCRE options are given in the  As well as turning on the PCRE_UTF8 option, the \fB/8\fP modifier also causes
198    any non-printing characters in output strings to be printed using the
199    \ex{hh...} notation if they are valid UTF-8 sequences. Full details of the PCRE
200    options are given in the
201  .\" HREF  .\" HREF
202  \fBpcreapi\fP  \fBpcreapi\fP
203  .\"  .\"
204  documentation.  documentation.
205  .  .
206  .  .
207  .SS "Finding all matches in a string"  .SS "Finding all matches in a string"
# Line 224  such cases when using the \fB/g\fP modif Line 230  such cases when using the \fB/g\fP modif
230  There are yet more modifiers for controlling the way \fBpcretest\fP  There are yet more modifiers for controlling the way \fBpcretest\fP
231  operates.  operates.
232  .P  .P
 The \fB/8\fP modifier causes \fBpcretest\fP to call PCRE with the PCRE_UTF8  
 option set. This turns on support for UTF-8 character handling in PCRE,  
 provided that it was compiled with this support enabled. This modifier also  
 causes any non-printing characters in output strings to be printed using the  
 \ex{hh...} notation if they are valid UTF-8 sequences.  
 .P  
 If the \fB/?\fP modifier is used with \fB/8\fP, it causes \fBpcretest\fP to  
 call \fBpcre_compile()\fP with the PCRE_NO_UTF8_CHECK option, to suppress the  
 checking of the string for UTF-8 validity.  
 .P  
233  The \fB/+\fP modifier requests that as well as outputting the substring that  The \fB/+\fP modifier requests that as well as outputting the substring that
234  matched the entire pattern, pcretest should in addition output the remainder of  matched the entire pattern, pcretest should in addition output the remainder of
235  the subject string. This is useful for tests where the subject contains  the subject string. This is useful for tests where the subject contains
# Line 286  pointer; that is, \fB/L\fP applies only Line 282  pointer; that is, \fB/L\fP applies only
282  The \fB/M\fP modifier causes the size of memory block used to hold the compiled  The \fB/M\fP modifier causes the size of memory block used to hold the compiled
283  pattern to be output.  pattern to be output.
284  .P  .P
 The \fB/P\fP modifier causes \fBpcretest\fP to call PCRE via the POSIX wrapper  
 API rather than its native API. When this is done, all other modifiers except  
 \fB/i\fP, \fB/m\fP, and \fB/+\fP are ignored. REG_ICASE is set if \fB/i\fP is  
 present, and REG_NEWLINE is set if \fB/m\fP is present. The wrapper functions  
 force PCRE_DOLLAR_ENDONLY always, and PCRE_DOTALL unless REG_NEWLINE is set.  
 .P  
285  The \fB/S\fP modifier causes \fBpcre_study()\fP to be called after the  The \fB/S\fP modifier causes \fBpcre_study()\fP to be called after the
286  expression has been compiled, and the results used when the expression is  expression has been compiled, and the results used when the expression is
287  matched.  matched.
288  .  .
289  .  .
290    .SS "Using the POSIX wrapper API"
291    .rs
292    .sp
293    The \fB/P\fP modifier causes \fBpcretest\fP to call PCRE via the POSIX wrapper
294    API rather than its native API. When \fB/P\fP is set, the following modifiers
295    set options for the \fBregcomp()\fP function:
296    .sp
297      /i    REG_ICASE
298      /m    REG_NEWLINE
299      /N    REG_NOSUB
300      /s    REG_DOTALL     )
301      /U    REG_UNGREEDY   ) These options are not part of
302      /W    REG_UCP        )   the POSIX standard
303      /8    REG_UTF8       )
304    .sp
305    The \fB/+\fP modifier works as described above. All other modifiers are
306    ignored.
307    .
308    .
309  .SH "DATA LINES"  .SH "DATA LINES"
310  .rs  .rs
311  .sp  .sp
# Line 434  by the \fB-O\fP command line option (or Line 443  by the \fB-O\fP command line option (or
443  the call of \fBpcre_exec()\fP for the line in which it appears.  the call of \fBpcre_exec()\fP for the line in which it appears.
444  .P  .P
445  If the \fB/P\fP modifier was present on the pattern, causing the POSIX wrapper  If the \fB/P\fP modifier was present on the pattern, causing the POSIX wrapper
446  API to be used, the only option-setting sequences that have any effect are \eB  API to be used, the only option-setting sequences that have any effect are \eB,
447  and \eZ, causing REG_NOTBOL and REG_NOTEOL, respectively, to be passed to  \eN, and \eZ, causing REG_NOTBOL, REG_NOTEMPTY, and REG_NOTEOL, respectively,
448  \fBregexec()\fP.  to be passed to \fBregexec()\fP.
449  .P  .P
450  The use of \ex{hh...} to represent UTF-8 characters is not dependent on the use  The use of \ex{hh...} to represent UTF-8 characters is not dependent on the use
451  of the \fB/8\fP modifier on the pattern. It is recognized always. There may be  of the \fB/8\fP modifier on the pattern. It is recognized always. There may be
# Line 741  Cambridge CB2 3QH, England. Line 750  Cambridge CB2 3QH, England.
750  .rs  .rs
751  .sp  .sp
752  .nf  .nf
753  Last updated: 26 March 2010  Last updated: 16 May 2010
754  Copyright (c) 1997-2010 University of Cambridge.  Copyright (c) 1997-2010 University of Cambridge.
755  .fi  .fi

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