/[pcre]/code/trunk/doc/pcretest.1
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revision 155 by ph10, Tue Apr 24 13:36:11 2007 UTC revision 287 by ph10, Tue Dec 18 20:11:28 2007 UTC
# Line 97  that file and writes to stdout. Otherwis Line 97  that file and writes to stdout. Otherwis
97  stdout, and prompts for each line of input, using "re>" to prompt for regular  stdout, and prompts for each line of input, using "re>" to prompt for regular
98  expressions, and "data>" to prompt for data lines.  expressions, and "data>" to prompt for data lines.
99  .P  .P
100    When \fBpcretest\fP is built, a configuration option can specify that it should
101    be linked with the \fBlibreadline\fP library. When this is done, if the input
102    is from a terminal, it is read using the \fBreadline()\fP function. This
103    provides line-editing and history facilities. The output from the \fB-help\fP
104    option states whether or not \fBreadline()\fP will be used.
105    .P
106  The program handles any number of sets of input on a single input file. Each  The program handles any number of sets of input on a single input file. Each
107  set starts with a regular expression, and continues with any number of data  set starts with a regular expression, and continues with any number of data
108  lines to be matched against the pattern.  lines to be matched against the pattern.
# Line 157  effect as they do in Perl. For example: Line 163  effect as they do in Perl. For example:
163  The following table shows additional modifiers for setting PCRE options that do  The following table shows additional modifiers for setting PCRE options that do
164  not correspond to anything in Perl:  not correspond to anything in Perl:
165  .sp  .sp
166    \fB/A\fP          PCRE_ANCHORED    \fB/A\fP              PCRE_ANCHORED
167    \fB/C\fP          PCRE_AUTO_CALLOUT    \fB/C\fP              PCRE_AUTO_CALLOUT
168    \fB/E\fP          PCRE_DOLLAR_ENDONLY    \fB/E\fP              PCRE_DOLLAR_ENDONLY
169    \fB/f\fP          PCRE_FIRSTLINE    \fB/f\fP              PCRE_FIRSTLINE
170    \fB/J\fP          PCRE_DUPNAMES    \fB/J\fP              PCRE_DUPNAMES
171    \fB/N\fP          PCRE_NO_AUTO_CAPTURE    \fB/N\fP              PCRE_NO_AUTO_CAPTURE
172    \fB/U\fP          PCRE_UNGREEDY    \fB/U\fP              PCRE_UNGREEDY
173    \fB/X\fP          PCRE_EXTRA    \fB/X\fP              PCRE_EXTRA
174    \fB/<cr>\fP       PCRE_NEWLINE_CR    \fB/<cr>\fP           PCRE_NEWLINE_CR
175    \fB/<lf>\fP       PCRE_NEWLINE_LF    \fB/<lf>\fP           PCRE_NEWLINE_LF
176    \fB/<crlf>\fP     PCRE_NEWLINE_CRLF    \fB/<crlf>\fP         PCRE_NEWLINE_CRLF
177    \fB/<anycrlf>\fP  PCRE_NEWLINE_ANYCRLF    \fB/<anycrlf>\fP      PCRE_NEWLINE_ANYCRLF
178    \fB/<any>\fP      PCRE_NEWLINE_ANY    \fB/<any>\fP          PCRE_NEWLINE_ANY
179  .sp    \fB/<bsr_anycrlf>\fP  PCRE_BSR_ANYCRLF
180  Those specifying line ending sequencess are literal strings as shown. This    \fB/<bsr_unicode>\fP  PCRE_BSR_UNICODE
181  example sets multiline matching with CRLF as the line ending sequence:  .sp
182    Those specifying line ending sequences are literal strings as shown, but the
183    letters can be in either case. This example sets multiline matching with CRLF
184    as the line ending sequence:
185  .sp  .sp
186    /^abc/m<crlf>    /^abc/m<crlf>
187  .sp  .sp
# Line 411  and \eZ, causing REG_NOTBOL and REG_NOTE Line 420  and \eZ, causing REG_NOTBOL and REG_NOTE
420  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
421  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
422  any number of hexadecimal digits inside the braces. The result is from one to  any number of hexadecimal digits inside the braces. The result is from one to
423  six bytes, encoded according to the UTF-8 rules.  six bytes, encoded according to the original UTF-8 rules of RFC 2279. This
424    allows for values in the range 0 to 0x7FFFFFFF. Note that not all of those are
425    valid Unicode code points, or indeed valid UTF-8 characters according to the
426    later rules in RFC 3629.
427  .  .
428  .  .
429  .SH "THE ALTERNATIVE MATCHING FUNCTION"  .SH "THE ALTERNATIVE MATCHING FUNCTION"
# Line 457  of an interactive \fBpcretest\fP run. Line 469  of an interactive \fBpcretest\fP run.
469    data> xyz    data> xyz
470    No match    No match
471  .sp  .sp
472    Note that unset capturing substrings that are not followed by one that is set
473    are not returned by \fBpcre_exec()\fP, and are not shown by \fBpcretest\fP. In
474    the following example, there are two capturing substrings, but when the first
475    data line is matched, the second, unset substring is not shown. An "internal"
476    unset substring is shown as "<unset>", as for the second data line.
477    .sp
478        re> /(a)|(b)/
479      data> a
480       0: a
481       1: a
482      data> b
483       0: b
484       1: <unset>
485       2: b
486    .sp
487  If the strings contain any non-printing characters, they are output as \e0x  If the strings contain any non-printing characters, they are output as \e0x
488  escapes, or as \ex{...} escapes if the \fB/8\fP modifier was present on the  escapes, or as \ex{...} escapes if the \fB/8\fP modifier was present on the
489  pattern. See below for the definition of non-printing characters. If the  pattern. See below for the definition of non-printing characters. If the
# Line 690  Cambridge CB2 3QH, England. Line 717  Cambridge CB2 3QH, England.
717  .rs  .rs
718  .sp  .sp
719  .nf  .nf
720  Last updated: 24 April 2007  Last updated: 18 December 2007
721  Copyright (c) 1997-2007 University of Cambridge.  Copyright (c) 1997-2007 University of Cambridge.
722  .fi  .fi

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