diff liboctave/util/lo-regexp.cc @ 21136:7cac4e7458f2

maint: clean up code around calls to current_liboctave_error_handler. Remove statements after call to handler that are no longer reachable. Place input validation first and immediately call handler if necessary. Change if/error_handler/else to if/error_handler and re-indent code. * Array-util.cc, Array.cc, CColVector.cc, CDiagMatrix.cc, CMatrix.cc, CNDArray.cc, CRowVector.cc, CSparse.cc, DiagArray2.cc, MArray.cc, PermMatrix.cc, Sparse.cc, Sparse.h, chMatrix.cc, chNDArray.cc, dColVector.cc, dDiagMatrix.cc, dMatrix.cc, dNDArray.cc, dRowVector.cc, dSparse.cc, fCColVector.cc, fCDiagMatrix.cc, fCMatrix.cc, fCNDArray.cc, fCRowVector.cc, fColVector.cc, fDiagMatrix.cc, fMatrix.cc, fNDArray.cc, fRowVector.cc, idx-vector.cc, CmplxAEPBAL.cc, CmplxCHOL.cc, CmplxGEPBAL.cc, CmplxHESS.cc, CmplxLU.cc, CmplxQR.cc, CmplxSCHUR.cc, CmplxSVD.cc, DASPK.cc, EIG.cc, LSODE.cc, Quad.cc, SparseCmplxCHOL.cc, SparseCmplxLU.cc, SparseCmplxQR.cc, SparseQR.cc, SparsedbleCHOL.cc, SparsedbleLU.cc, base-lu.cc, bsxfun-defs.cc, dbleAEPBAL.cc, dbleCHOL.cc, dbleGEPBAL.cc, dbleHESS.cc, dbleLU.cc, dbleQR.cc, dbleSCHUR.cc, dbleSVD.cc, eigs-base.cc, fCmplxAEPBAL.cc, fCmplxCHOL.cc, fCmplxLU.cc, fCmplxQR.cc, fCmplxSCHUR.cc, fEIG.cc, floatAEPBAL.cc, floatCHOL.cc, floatGEPBAL.cc, floatHESS.cc, floatLU.cc, floatQR.cc, floatSCHUR.cc, floatSVD.cc, lo-specfun.cc, oct-fftw.cc, oct-rand.cc, oct-spparms.cc, sparse-base-chol.cc, sparse-dmsolve.cc, file-ops.cc, lo-sysdep.cc, mach-info.cc, oct-env.cc, oct-syscalls.cc, cmd-edit.cc, cmd-hist.cc, data-conv.cc, lo-ieee.cc, lo-regexp.cc, oct-base64.cc, oct-shlib.cc, pathsearch.cc, singleton-cleanup.cc, sparse-util.cc, unwind-prot.cc: Remove statements after call to handler that are no longer reachable. Place input validation first and immediately call handler if necessary. Change if/error_handler/else to if/error_handler and re-indent code.
author Rik <rik@octave.org>
date Sat, 23 Jan 2016 13:52:03 -0800
parents 77f5591878bf
children f7121e111991
line wrap: on
line diff
--- a/liboctave/util/lo-regexp.cc	Fri Jan 22 13:45:21 2016 -0500
+++ b/liboctave/util/lo-regexp.cc	Sat Jan 23 13:52:03 2016 -0800
@@ -95,11 +95,8 @@
           size_t tmp_pos = pattern.find_first_of ('>', new_pos);
 
           if (tmp_pos == std::string::npos)
-            {
-              (*current_liboctave_error_handler)
-                ("regexp: syntax error in pattern");
-              return;
-            }
+            (*current_liboctave_error_handler)
+              ("regexp: syntax error in pattern");
 
           std::string tmp_name =
             pattern.substr (new_pos+3, tmp_pos-new_pos-3);
@@ -235,8 +232,7 @@
 
   if (! data)
     (*current_liboctave_error_handler)
-      ("%s: %s at position %d of expression", who.c_str (),
-       err, erroffset);
+      ("%s: %s at position %d of expression", who.c_str (), err, erroffset);
 }
 
 regexp::match_data
@@ -309,13 +305,11 @@
         }
 
       if (matches < 0 && matches != PCRE_ERROR_NOMATCH)
-        {
-          (*current_liboctave_error_handler)
-            ("%s: internal error calling pcre_exec; error code from pcre_exec is %i",
-             who.c_str (), matches);
-          return retval;
-        }
-      else if (matches == PCRE_ERROR_NOMATCH)
+        (*current_liboctave_error_handler)
+          ("%s: internal error calling pcre_exec; "
+           "error code from pcre_exec is %i", who.c_str (), matches);
+
+      if (matches == PCRE_ERROR_NOMATCH)
         break;
       else if (ovector[1] <= ovector[0] && ! options.emptymatch ())
         {
@@ -352,12 +346,9 @@
                                                 matches, &listptr);
 
           if (status == PCRE_ERROR_NOMEMORY)
-            {
-              (*current_liboctave_error_handler)
-                ("%s: cannot allocate memory in pcre_get_substring_list",
-                 who.c_str ());
-              return retval;
-            }
+            (*current_liboctave_error_handler)
+              ("%s: cannot allocate memory in pcre_get_substring_list",
+               who.c_str ());
 
           string_vector tokens (pos_match);
           string_vector named_tokens (nnames);