pcregrep --color -M -N CRLF "owa_pattern\.\w+\W*\([^\)]*\)" source.sql

Source multiline grep with pcregrep

grep multiline in Perl regexp syntax with pcregrep
Sample Output
          IF (owa_pattern.match(v_value, trim(v_nodo_legame)||'=(.*.)', v_nodo_dir))
                    IF (owa_pattern.match(setup_rec.value, trim(mandato_rec.cod_mandato)||'=(.*.)', v_rag_soc))
                   IF (owa_pattern.match(setup_rec.value, trim(mandato_nodo_rec.cod_mandato)||'=(.*.)', v_rag_soc))
             IF ( owa_pattern.match(setup_rec.value, '(....).\[', v_value_owa) )
             IF ( owa_pattern.match(p_dati_tecnici, '=(.*.)', v_value_owa) )
             IF ( owa_pattern.match(setup_rec.value, '\[(.*.)\]', v_value_owa) )
         ret := owa_pattern.amatch(
                        line => v_pvalue,
                        from_loc => 1,
                        pat => '(\w+)\W*(\w*)\W*(\w*)\W*(\w*)\W*(\w*)\W*(\w*)\W*(\w*)\W*(\w*)\W*(\w*)\W*',
         ret := owa_pattern.amatch(
                        line => v_pvalue,
                        from_loc => 1,
                        pat => '(\w+)\W*(\w*)\W*(\w*)\W*(\w*)\W*(\w*)\W*(\w*)\W*(\w*)\W*(\w*)\W*(\w*)\W*',
         retval := owa_pattern.amatch(
               line => v_current_row,
               from_loc => 1, -- Start from begin
               pat => a_tr_record(v_tr_record_ind).regex_compil,
                  v_step := '2.3. owa_pattern.getpat ("'||v_pattern||'", v_pat)';
                  owa_pattern.getpat (v_pattern, a_tr_record(v_tr_record_ind).regex_compil);
                  v_step := '2.4. owa_pattern.getpat ("", v_pat)';
                  owa_pattern.getpat (v_pattern, a_tr_record(v_tr_record_ind).regex_compil);

By: hute37
2010-11-11 12:53:40

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  • -1
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    hute37 · 2012-01-16 09:19:40 2
  • Count your source and header file's line numbers. This ignores blank lines, C++ style comments, single line C style comments. This will not ignore blank lines with tabs or multiline C style comments.

    find /usr/include/ -name '*.[c|h]pp' -o -name '*.[ch]' -print0 | xargs -0 cat | grep -v "^ *$" | grep -v "^ *//" | grep -v "^ */\*.*\*/" | wc -l
    unixmonkey44446 · 2013-06-17 08:37:37 0
  • Much better alternatives - grep-alikes using perl regexps. With more options, and nicer outputs.

    ack; pcregrep
    depesz · 2011-08-14 18:01:36 0
  • This is based on __unixmonkey73469__ answer. You will need to supply `--multiline 1` option to JSON importer if your .json is multiline (i.e. it was prettyfied) And you still need catmandu installed via `cpanm Catmandu`

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  • Good for when your working on building a clean source install for RPM packaging or what have you. After testing, run this command to compare the original extracted source to your working source directory and it will remove the differences that are created when running './configure' and 'make'.

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What Others Think

without need to install grep variant pcregrep, you can do multiline search with grep. grep -Pzo "(?s)^(\s*)\N*main.*?{.*?^\1}" *.c Explain: -P activate perl-regexp for grep (a powerful extension of regular extensions) -z supress newline at the end of line, subtituting it for null character. That is, grep knows where end of line is, but see input as a big one line. -o print only matching. Because using -z, all file is like a big line, so if there is a match, all file would be printed, this way it don't. in regexp: (?s) activate PCRE_DOTALL, which means that '.' find any character or newline \N find anything except newline, even with PCRE_DOTALL activated .*? find '.' in nongreedy mode, that is, stops as soon as possible. ^ find start of line \1 backreference to first group (\s*) This is a try to find same indentation of method As you can imagine, this print the main method in a C (*.c) source file.
unixmonkey24864 · 352 weeks ago
grep version is very cool ;) i like the trick to match closing brace with backreferences ...
hute37 · 352 weeks ago

What do you think?

Any thoughts on this command? Does it work on your machine? Can you do the same thing with only 14 characters?

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