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annotate libinterp/parse-tree/parse.h @ 17787:175b392e91fe

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Use GNU style coding conventions for code in libinterp/ * libinterp/corefcn/Cell.h, libinterp/corefcn/__contourc__.cc, libinterp/corefcn/__dispatch__.cc, libinterp/corefcn/__lin_interpn__.cc, libinterp/corefcn/__pchip_deriv__.cc, libinterp/corefcn/__qp__.cc, libinterp/corefcn/balance.cc, libinterp/corefcn/besselj.cc, libinterp/corefcn/betainc.cc, libinterp/corefcn/bitfcns.cc, libinterp/corefcn/bsxfun.cc, libinterp/corefcn/c-file-ptr-stream.cc, libinterp/corefcn/c-file-ptr-stream.h, libinterp/corefcn/cellfun.cc, libinterp/corefcn/colloc.cc, libinterp/corefcn/comment-list.h, libinterp/corefcn/conv2.cc, libinterp/corefcn/daspk.cc, libinterp/corefcn/dasrt.cc, libinterp/corefcn/dassl.cc, libinterp/corefcn/data.cc, libinterp/corefcn/debug.cc, libinterp/corefcn/defaults.cc, libinterp/corefcn/defaults.in.h, libinterp/corefcn/defun-int.h, libinterp/corefcn/defun.cc, libinterp/corefcn/det.cc, libinterp/corefcn/dirfns.cc, libinterp/corefcn/display.cc, libinterp/corefcn/dlmread.cc, libinterp/corefcn/dot.cc, libinterp/corefcn/dynamic-ld.cc, libinterp/corefcn/dynamic-ld.h, libinterp/corefcn/eig.cc, libinterp/corefcn/ellipj.cc, libinterp/corefcn/error.cc, libinterp/corefcn/error.h, libinterp/corefcn/event-queue.h, libinterp/corefcn/fft.cc, libinterp/corefcn/fft2.cc, libinterp/corefcn/fftn.cc, libinterp/corefcn/file-io.cc, libinterp/corefcn/filter.cc, libinterp/corefcn/find.cc, libinterp/corefcn/gammainc.cc, libinterp/corefcn/gcd.cc, libinterp/corefcn/getgrent.cc, libinterp/corefcn/getpwent.cc, libinterp/corefcn/getrusage.cc, libinterp/corefcn/givens.cc, libinterp/corefcn/gl-render.cc, libinterp/corefcn/gl2ps-renderer.cc, libinterp/corefcn/gl2ps-renderer.h, libinterp/corefcn/graphics.cc, libinterp/corefcn/graphics.in.h, libinterp/corefcn/gripes.cc, libinterp/corefcn/gripes.h, libinterp/corefcn/help.cc, libinterp/corefcn/hess.cc, libinterp/corefcn/hex2num.cc, libinterp/corefcn/input.cc, libinterp/corefcn/input.h, libinterp/corefcn/inv.cc, libinterp/corefcn/jit-ir.h, libinterp/corefcn/jit-typeinfo.cc, libinterp/corefcn/jit-typeinfo.h, libinterp/corefcn/jit-util.h, libinterp/corefcn/kron.cc, libinterp/corefcn/load-path.cc, libinterp/corefcn/load-path.h, libinterp/corefcn/load-save.cc, libinterp/corefcn/load-save.h, libinterp/corefcn/lookup.cc, libinterp/corefcn/ls-ascii-helper.cc, libinterp/corefcn/ls-hdf5.cc, libinterp/corefcn/ls-hdf5.h, libinterp/corefcn/ls-mat-ascii.cc, libinterp/corefcn/ls-mat-ascii.h, libinterp/corefcn/ls-mat4.cc, libinterp/corefcn/ls-mat5.cc, libinterp/corefcn/ls-mat5.h, libinterp/corefcn/ls-oct-ascii.cc, libinterp/corefcn/lsode.cc, libinterp/corefcn/lu.cc, libinterp/corefcn/luinc.cc, libinterp/corefcn/mappers.cc, libinterp/corefcn/matrix_type.cc, libinterp/corefcn/max.cc, libinterp/corefcn/md5sum.cc, libinterp/corefcn/mex.cc, libinterp/corefcn/mexproto.h, libinterp/corefcn/mgorth.cc, libinterp/corefcn/mxarray.in.h, libinterp/corefcn/nproc.cc, libinterp/corefcn/oct-hist.cc, libinterp/corefcn/oct-lvalue.h, libinterp/corefcn/oct-map.cc, libinterp/corefcn/oct-map.h, libinterp/corefcn/oct-obj.h, libinterp/corefcn/oct-prcstrm.h, libinterp/corefcn/oct-stdstrm.h, libinterp/corefcn/oct-stream.cc, libinterp/corefcn/oct-stream.h, libinterp/corefcn/octave-link.cc, libinterp/corefcn/octave-link.h, libinterp/corefcn/pager.cc, libinterp/corefcn/pinv.cc, libinterp/corefcn/pr-output.cc, libinterp/corefcn/procstream.h, libinterp/corefcn/profiler.cc, libinterp/corefcn/pt-jit.cc, libinterp/corefcn/pt-jit.h, libinterp/corefcn/quad.cc, libinterp/corefcn/quadcc.cc, libinterp/corefcn/qz.cc, libinterp/corefcn/rand.cc, libinterp/corefcn/rcond.cc, libinterp/corefcn/regexp.cc, libinterp/corefcn/schur.cc, libinterp/corefcn/sighandlers.cc, libinterp/corefcn/sighandlers.h, libinterp/corefcn/sparse-xdiv.cc, libinterp/corefcn/sparse-xdiv.h, libinterp/corefcn/sparse-xpow.cc, libinterp/corefcn/sparse.cc, libinterp/corefcn/spparms.cc, libinterp/corefcn/sqrtm.cc, libinterp/corefcn/str2double.cc, libinterp/corefcn/strfind.cc, libinterp/corefcn/strfns.cc, libinterp/corefcn/sub2ind.cc, libinterp/corefcn/svd.cc, libinterp/corefcn/syl.cc, libinterp/corefcn/symtab.cc, libinterp/corefcn/symtab.h, libinterp/corefcn/syscalls.cc, libinterp/corefcn/sysdep.cc, libinterp/corefcn/sysdep.h, libinterp/corefcn/time.cc, libinterp/corefcn/toplev.cc, libinterp/corefcn/toplev.h, libinterp/corefcn/tril.cc, libinterp/corefcn/txt-eng-ft.cc, libinterp/corefcn/txt-eng-ft.h, libinterp/corefcn/txt-eng.h, libinterp/corefcn/typecast.cc, libinterp/corefcn/urlwrite.cc, libinterp/corefcn/utils.cc, libinterp/corefcn/variables.cc, libinterp/corefcn/variables.h, libinterp/corefcn/xdiv.cc, libinterp/corefcn/xdiv.h, libinterp/corefcn/xnorm.h, libinterp/corefcn/xpow.cc, libinterp/corefcn/xpow.h, libinterp/corefcn/zfstream.cc, libinterp/corefcn/zfstream.h, libinterp/dldfcn/__delaunayn__.cc, libinterp/dldfcn/__dsearchn__.cc, libinterp/dldfcn/__eigs__.cc, libinterp/dldfcn/__fltk_uigetfile__.cc, libinterp/dldfcn/__glpk__.cc, libinterp/dldfcn/__init_fltk__.cc, libinterp/dldfcn/__init_gnuplot__.cc, libinterp/dldfcn/__magick_read__.cc, libinterp/dldfcn/__voronoi__.cc, libinterp/dldfcn/amd.cc, libinterp/dldfcn/ccolamd.cc, libinterp/dldfcn/chol.cc, libinterp/dldfcn/colamd.cc, libinterp/dldfcn/convhulln.cc, libinterp/dldfcn/dmperm.cc, libinterp/dldfcn/fftw.cc, libinterp/dldfcn/qr.cc, libinterp/dldfcn/symbfact.cc, libinterp/dldfcn/symrcm.cc, libinterp/dldfcn/tsearch.cc, libinterp/octave-value/ov-base-diag.cc, libinterp/octave-value/ov-base-diag.h, libinterp/octave-value/ov-base-int.cc, libinterp/octave-value/ov-base-int.h, libinterp/octave-value/ov-base-mat.h, libinterp/octave-value/ov-base-scalar.cc, libinterp/octave-value/ov-base-scalar.h, libinterp/octave-value/ov-base-sparse.cc, libinterp/octave-value/ov-base-sparse.h, libinterp/octave-value/ov-base.cc, libinterp/octave-value/ov-base.h, libinterp/octave-value/ov-bool-mat.cc, libinterp/octave-value/ov-bool-mat.h, libinterp/octave-value/ov-bool-sparse.cc, libinterp/octave-value/ov-bool-sparse.h, libinterp/octave-value/ov-bool.cc, libinterp/octave-value/ov-bool.h, libinterp/octave-value/ov-builtin.cc, libinterp/octave-value/ov-builtin.h, libinterp/octave-value/ov-cell.cc, libinterp/octave-value/ov-cell.h, libinterp/octave-value/ov-ch-mat.cc, libinterp/octave-value/ov-ch-mat.h, libinterp/octave-value/ov-class.cc, libinterp/octave-value/ov-class.h, libinterp/octave-value/ov-colon.h, libinterp/octave-value/ov-complex.cc, libinterp/octave-value/ov-complex.h, libinterp/octave-value/ov-cx-diag.cc, libinterp/octave-value/ov-cx-diag.h, libinterp/octave-value/ov-cx-mat.cc, libinterp/octave-value/ov-cx-mat.h, libinterp/octave-value/ov-cx-sparse.cc, libinterp/octave-value/ov-cx-sparse.h, libinterp/octave-value/ov-dld-fcn.h, libinterp/octave-value/ov-fcn-handle.cc, libinterp/octave-value/ov-fcn-handle.h, libinterp/octave-value/ov-fcn-inline.cc, libinterp/octave-value/ov-fcn-inline.h, libinterp/octave-value/ov-fcn.h, libinterp/octave-value/ov-float.cc, libinterp/octave-value/ov-float.h, libinterp/octave-value/ov-flt-complex.cc, libinterp/octave-value/ov-flt-complex.h, libinterp/octave-value/ov-flt-cx-diag.cc, libinterp/octave-value/ov-flt-cx-diag.h, libinterp/octave-value/ov-flt-cx-mat.cc, libinterp/octave-value/ov-flt-cx-mat.h, libinterp/octave-value/ov-flt-re-diag.cc, libinterp/octave-value/ov-flt-re-diag.h, libinterp/octave-value/ov-flt-re-mat.cc, libinterp/octave-value/ov-flt-re-mat.h, libinterp/octave-value/ov-int16.cc, libinterp/octave-value/ov-int32.cc, libinterp/octave-value/ov-int64.cc, libinterp/octave-value/ov-int8.cc, libinterp/octave-value/ov-intx.h, libinterp/octave-value/ov-java.cc, libinterp/octave-value/ov-lazy-idx.h, libinterp/octave-value/ov-mex-fcn.cc, libinterp/octave-value/ov-mex-fcn.h, libinterp/octave-value/ov-null-mat.cc, libinterp/octave-value/ov-null-mat.h, libinterp/octave-value/ov-oncleanup.cc, libinterp/octave-value/ov-perm.cc, libinterp/octave-value/ov-perm.h, libinterp/octave-value/ov-range.cc, libinterp/octave-value/ov-range.h, libinterp/octave-value/ov-re-diag.cc, libinterp/octave-value/ov-re-diag.h, libinterp/octave-value/ov-re-mat.cc, libinterp/octave-value/ov-re-mat.h, libinterp/octave-value/ov-re-sparse.cc, libinterp/octave-value/ov-re-sparse.h, libinterp/octave-value/ov-scalar.cc, libinterp/octave-value/ov-scalar.h, libinterp/octave-value/ov-str-mat.cc, libinterp/octave-value/ov-str-mat.h, libinterp/octave-value/ov-struct.cc, libinterp/octave-value/ov-struct.h, libinterp/octave-value/ov-type-conv.h, libinterp/octave-value/ov-typeinfo.cc, libinterp/octave-value/ov-typeinfo.h, libinterp/octave-value/ov-uint16.cc, libinterp/octave-value/ov-uint32.cc, libinterp/octave-value/ov-uint64.cc, libinterp/octave-value/ov-uint8.cc, libinterp/octave-value/ov-usr-fcn.cc, libinterp/octave-value/ov-usr-fcn.h, libinterp/octave-value/ov.cc, libinterp/octave-value/ov.h, libinterp/octave.cc, libinterp/operators/op-b-bm.cc, libinterp/operators/op-b-sbm.cc, libinterp/operators/op-bm-b.cc, libinterp/operators/op-bm-bm.cc, libinterp/operators/op-cdm-cdm.cc, libinterp/operators/op-chm.cc, libinterp/operators/op-class.cc, libinterp/operators/op-cm-cm.cc, libinterp/operators/op-cm-cs.cc, libinterp/operators/op-cm-s.cc, libinterp/operators/op-cm-scm.cc, libinterp/operators/op-cm-sm.cc, libinterp/operators/op-cs-cm.cc, libinterp/operators/op-cs-cs.cc, libinterp/operators/op-cs-scm.cc, libinterp/operators/op-cs-sm.cc, libinterp/operators/op-dm-dm.cc, libinterp/operators/op-dm-scm.cc, libinterp/operators/op-double-conv.cc, libinterp/operators/op-fcdm-fcdm.cc, libinterp/operators/op-fcm-fcm.cc, libinterp/operators/op-fcm-fcs.cc, libinterp/operators/op-fcm-fm.cc, libinterp/operators/op-fcm-fs.cc, libinterp/operators/op-fcs-fcm.cc, libinterp/operators/op-fcs-fcs.cc, libinterp/operators/op-fcs-fm.cc, libinterp/operators/op-fcs-fs.cc, libinterp/operators/op-fdm-fdm.cc, libinterp/operators/op-float-conv.cc, libinterp/operators/op-fm-fcm.cc, libinterp/operators/op-fm-fcs.cc, libinterp/operators/op-fm-fm.cc, libinterp/operators/op-fm-fs.cc, libinterp/operators/op-fs-fcm.cc, libinterp/operators/op-fs-fcs.cc, libinterp/operators/op-fs-fm.cc, libinterp/operators/op-fs-fs.cc, libinterp/operators/op-m-cm.cc, libinterp/operators/op-m-cs.cc, libinterp/operators/op-m-m.cc, libinterp/operators/op-m-s.cc, libinterp/operators/op-m-scm.cc, libinterp/operators/op-m-sm.cc, libinterp/operators/op-pm-scm.cc, libinterp/operators/op-range.cc, libinterp/operators/op-s-cm.cc, libinterp/operators/op-s-cs.cc, libinterp/operators/op-s-scm.cc, libinterp/operators/op-sbm-b.cc, libinterp/operators/op-sbm-bm.cc, libinterp/operators/op-sbm-sbm.cc, libinterp/operators/op-scm-cm.cc, libinterp/operators/op-scm-cs.cc, libinterp/operators/op-scm-m.cc, libinterp/operators/op-scm-s.cc, libinterp/operators/op-scm-scm.cc, libinterp/operators/op-scm-sm.cc, libinterp/operators/op-sm-cm.cc, libinterp/operators/op-sm-m.cc, libinterp/operators/op-sm-s.cc, libinterp/operators/op-sm-scm.cc, libinterp/operators/op-sm-sm.cc, libinterp/operators/op-str-m.cc, libinterp/operators/op-str-s.cc, libinterp/operators/op-str-str.cc, libinterp/operators/ops.h, libinterp/parse-tree/lex.h, libinterp/parse-tree/parse.h, libinterp/parse-tree/pt-arg-list.cc, libinterp/parse-tree/pt-arg-list.h, libinterp/parse-tree/pt-assign.cc, libinterp/parse-tree/pt-assign.h, libinterp/parse-tree/pt-binop.cc, libinterp/parse-tree/pt-binop.h, libinterp/parse-tree/pt-bp.h, libinterp/parse-tree/pt-cbinop.cc, libinterp/parse-tree/pt-check.cc, libinterp/parse-tree/pt-colon.cc, libinterp/parse-tree/pt-colon.h, libinterp/parse-tree/pt-const.cc, libinterp/parse-tree/pt-decl.cc, libinterp/parse-tree/pt-decl.h, libinterp/parse-tree/pt-eval.cc, libinterp/parse-tree/pt-except.h, libinterp/parse-tree/pt-exp.h, libinterp/parse-tree/pt-fcn-handle.cc, libinterp/parse-tree/pt-id.cc, libinterp/parse-tree/pt-id.h, libinterp/parse-tree/pt-idx.cc, libinterp/parse-tree/pt-idx.h, libinterp/parse-tree/pt-loop.h, libinterp/parse-tree/pt-mat.cc, libinterp/parse-tree/pt-misc.cc, libinterp/parse-tree/pt-misc.h, libinterp/parse-tree/pt-pr-code.cc, libinterp/parse-tree/pt-select.h, libinterp/parse-tree/pt-stmt.h, libinterp/parse-tree/token.h, libinterp/version.cc: Use GNU style coding conventions for code in libinterp/
author Rik <rik@octave.org>
date Mon, 28 Oct 2013 19:51:46 -0700
parents d63878346099
children 97e49b588f5d
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1 /*
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2
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3 Copyright (C) 1993-2013 John W. Eaton
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4
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5 This file is part of Octave.
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6
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
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7 Octave is free software; you can redistribute it and/or modify it
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8 under the terms of the GNU General Public License as published by the
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9 Free Software Foundation; either version 3 of the License, or (at your
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10 option) any later version.
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12 Octave is distributed in the hope that it will be useful, but WITHOUT
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13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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15 for more details.
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16
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17 You should have received a copy of the GNU General Public License
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18 along with Octave; see the file COPYING. If not, see
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19 <http://www.gnu.org/licenses/>.
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21 */
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23 #if !defined (octave_parse_h)
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24 #define octave_parse_h 1
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26 #include <cstdio>
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28 #include <string>
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30 #include <stack>
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31 #include <vector>
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32 #include <map>
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33
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34 #include "lex.h"
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35 #include "symtab.h"
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36 #include "token.h"
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37
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38 class octave_comment_list;
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39 class octave_function;
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40 class octave_user_function;
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41 class tree;
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42 class tree_anon_fcn_handle;
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43 class tree_argument_list;
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44 class tree_array_list;
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45 class tree_cell;
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46 class tree_colon_expression;
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47 class tree_command;
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48 class tree_constant;
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49 class tree_decl_command;
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50 class tree_decl_init_list;
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51 class tree_expression;
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52 class tree_fcn_handle;
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53 class tree_function_def;
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54 class tree_identifier;
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55 class tree_if_clause;
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56 class tree_if_command;
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57 class tree_if_command_list;
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58 class tree_index_expression;
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59 class tree_matrix;
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60 class tree_matrix;
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61 class tree_parameter_list;
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62 class tree_statement;
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63 class tree_statement_list;
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64 class tree_statement_listtree_statement;
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65 class tree_switch_case;
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66 class tree_switch_case_list;
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67 class tree_switch_command;
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68
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69 #include "oct-obj.h"
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70
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71 // Nonzero means print parser debugging info (-d).
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72 extern int octave_debug;
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73
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74 // TRUE means we printed messages about reading startup files.
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75 extern bool reading_startup_message_printed;
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76
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77 extern OCTINTERP_API std::string
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78 get_help_from_file (const std::string& nm, bool& symbol_found,
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79 std::string& file);
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80
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81 extern OCTINTERP_API std::string
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82 get_help_from_file (const std::string& nm, bool& symbol_found);
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83
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84 extern OCTINTERP_API std::string lookup_autoload (const std::string& nm);
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85
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86 extern OCTINTERP_API string_vector autoloaded_functions (void);
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87
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88 extern OCTINTERP_API string_vector
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89 reverse_lookup_autoload (const std::string& nm);
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90
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91 extern OCTINTERP_API octave_function *
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92 load_fcn_from_file (const std::string& file_name,
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93 const std::string& dir_name = std::string (),
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94 const std::string& dispatch_type = std::string (),
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95 const std::string& fcn_name = std::string (),
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96 bool autoload = false);
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97
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98 extern OCTINTERP_API void
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99 source_file (const std::string& file_name,
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100 const std::string& context = std::string (),
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101 bool verbose = false, bool require_file = true,
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102 const std::string& warn_for = std::string ());
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103
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104 extern OCTINTERP_API octave_value_list
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105 feval (const std::string& name,
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106 const octave_value_list& args = octave_value_list (),
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107 int nargout = 0);
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108
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109 extern OCTINTERP_API octave_value_list
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110 feval (octave_function *fcn,
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111 const octave_value_list& args = octave_value_list (),
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112 int nargout = 0);
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113
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114 extern OCTINTERP_API octave_value_list
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115 feval (const octave_value_list& args, int nargout = 0);
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116
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117 extern OCTINTERP_API octave_value_list
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118 eval_string (const std::string&, bool silent, int& parse_status, int hargout);
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119
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120 extern OCTINTERP_API octave_value
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121 eval_string (const std::string&, bool silent, int& parse_status);
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122
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123 extern OCTINTERP_API void cleanup_statement_list (tree_statement_list **lst);
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124
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125 // Global access to currently active lexer.
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126 // FIXME: to be removed after more parser+lexer refactoring.
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127 extern octave_base_lexer *LEXER;
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128
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129 class
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130 octave_base_parser
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131 {
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132 public:
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133
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134 octave_base_parser (octave_base_lexer& lxr)
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135 : endfunction_found (false),
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136 autoloading (false), fcn_file_from_relative_lookup (false),
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137 parsing_subfunctions (false), max_fcn_depth (0),
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138 curr_fcn_depth (0), primary_fcn_scope (-1),
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139 curr_class_name (), function_scopes (), primary_fcn_ptr (0),
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140 subfunction_names (), stmt_list (0),
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141 lexer (lxr)
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142 { }
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143
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144 ~octave_base_parser (void);
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145
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146 void reset (void);
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147
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148 // Error mesages for mismatched end tokens.
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149 void end_error (const char *type, token::end_tok_type ettype, int l, int c);
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150
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151 // Check to see that end tokens are properly matched.
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152 bool end_token_ok (token *tok, token::end_tok_type expected);
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153
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154 // Maybe print a warning if an assignment expression is used as the
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155 // test in a logical expression.
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156 void maybe_warn_assign_as_truth_value (tree_expression *expr);
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157
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158 // Maybe print a warning about switch labels that aren't constants.
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159 void maybe_warn_variable_switch_label (tree_expression *expr);
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160
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161 // Finish building a range.
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162 tree_expression *finish_colon_expression (tree_colon_expression *e);
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163
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164 // Build a constant.
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165 tree_constant *make_constant (int op, token *tok_val);
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166
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167 // Build a function handle.
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168 tree_fcn_handle *make_fcn_handle (token *tok_val);
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169
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170 // Build an anonymous function handle.
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171 tree_anon_fcn_handle *
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172 make_anon_fcn_handle (tree_parameter_list *param_list, tree_statement *stmt);
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173
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174 // Build a binary expression.
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175 tree_expression *
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176 make_binary_op (int op, tree_expression *op1, token *tok_val,
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177 tree_expression *op2);
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178
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179 // Build a boolean expression.
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180 tree_expression *
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181 make_boolean_op (int op, tree_expression *op1, token *tok_val,
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182 tree_expression *op2);
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183
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184 // Build a prefix expression.
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185 tree_expression *
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186 make_prefix_op (int op, tree_expression *op1, token *tok_val);
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187
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188 // Build a postfix expression.
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189 tree_expression *
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190 make_postfix_op (int op, tree_expression *op1, token *tok_val);
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191
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192 // Build an unwind-protect command.
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193 tree_command *
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194 make_unwind_command (token *unwind_tok, tree_statement_list *body,
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195 tree_statement_list *cleanup, token *end_tok,
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196 octave_comment_list *lc, octave_comment_list *mc);
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197
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198 // Build a try-catch command.
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199 tree_command *
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200 make_try_command (token *try_tok, tree_statement_list *body,
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201 char catch_sep, tree_statement_list *cleanup,
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202 token *end_tok, octave_comment_list *lc,
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203 octave_comment_list *mc);
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204
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205 // Build a while command.
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206 tree_command *
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207 make_while_command (token *while_tok, tree_expression *expr,
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208 tree_statement_list *body, token *end_tok,
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209 octave_comment_list *lc);
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210
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211 // Build a do-until command.
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212 tree_command *
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213 make_do_until_command (token *until_tok, tree_statement_list *body,
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214 tree_expression *expr, octave_comment_list *lc);
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215
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216 // Build a for command.
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217 tree_command *
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218 make_for_command (int tok_id, token *for_tok, tree_argument_list *lhs,
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219 tree_expression *expr, tree_expression *maxproc,
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220 tree_statement_list *body, token *end_tok,
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221 octave_comment_list *lc);
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222
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223 // Build a break command.
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224 tree_command *make_break_command (token *break_tok);
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225
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226 // Build a continue command.
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227 tree_command *make_continue_command (token *continue_tok);
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228
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229 // Build a return command.
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230 tree_command *make_return_command (token *return_tok);
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231
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232 // Start an if command.
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233 tree_if_command_list *
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234 start_if_command (tree_expression *expr, tree_statement_list *list);
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235
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236 // Finish an if command.
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237 tree_if_command *
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238 finish_if_command (token *if_tok, tree_if_command_list *list,
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239 token *end_tok, octave_comment_list *lc);
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240
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241 // Build an elseif clause.
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242 tree_if_clause *
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243 make_elseif_clause (token *elseif_tok, tree_expression *expr,
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244 tree_statement_list *list, octave_comment_list *lc);
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245
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246 // Finish a switch command.
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247 tree_switch_command *
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248 finish_switch_command (token *switch_tok, tree_expression *expr,
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249 tree_switch_case_list *list, token *end_tok,
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250 octave_comment_list *lc);
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251
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252 // Build a switch case.
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253 tree_switch_case *
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254 make_switch_case (token *case_tok, tree_expression *expr,
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255 tree_statement_list *list, octave_comment_list *lc);
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256
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257 // Build an assignment to a variable.
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258 tree_expression *
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259 make_assign_op (int op, tree_argument_list *lhs, token *eq_tok,
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260 tree_expression *rhs);
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261
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262 // Define a script.
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263 void make_script (tree_statement_list *cmds, tree_statement *end_script);
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264
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265 // Begin defining a function.
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266 octave_user_function *
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267 start_function (tree_parameter_list *param_list, tree_statement_list *body,
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268 tree_statement *end_function);
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269
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270 // Create a no-op statement for end_function.
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271 tree_statement *make_end (const std::string& type, bool eof, int l, int c);
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272
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273 // Do most of the work for defining a function.
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274 octave_user_function *
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275 frob_function (const std::string& fname, octave_user_function *fcn);
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276
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277 // Finish defining a function.
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278 tree_function_def *
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279 finish_function (tree_parameter_list *ret_list,
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280 octave_user_function *fcn, octave_comment_list *lc,
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281 int l, int c);
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282
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283 // Reset state after parsing function.
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284 void
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285 recover_from_parsing_function (void);
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286
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287 // Make an index expression.
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288 tree_index_expression *
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289 make_index_expression (tree_expression *expr,
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290 tree_argument_list *args, char type);
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291
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292 // Make an indirect reference expression.
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293 tree_index_expression *
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294 make_indirect_ref (tree_expression *expr, const std::string&);
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295
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296 // Make an indirect reference expression with dynamic field name.
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297 tree_index_expression *
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298 make_indirect_ref (tree_expression *expr, tree_expression *field);
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299
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300 // Make a declaration command.
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301 tree_decl_command *
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302 make_decl_command (int tok, token *tok_val, tree_decl_init_list *lst);
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303
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304 // Validate matrix or cell
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305 bool validate_array_list (tree_expression *e);
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306
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307 // Validate matrix object used in "[lhs] = ..." assignments.
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308 tree_argument_list *validate_matrix_for_assignment (tree_expression *e);
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309
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310 // Finish building an array_list (common action for finish_matrix
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311 // and finish_cell).
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312 tree_expression *finish_array_list (tree_array_list *a);
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313
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314 // Finish building a matrix list.
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315 tree_expression *finish_matrix (tree_matrix *m);
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316
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317 // Finish building a cell list.
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318 tree_expression *finish_cell (tree_cell *c);
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319
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320 // Maybe print a warning. Duh.
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321 void maybe_warn_missing_semi (tree_statement_list *);
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322
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323 // Set the print flag for a statement based on the separator type.
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324 tree_statement_list *
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325 set_stmt_print_flag (tree_statement_list *, char, bool);
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326
17693
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327 // Finish building a statement.
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328 template <class T>
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329 tree_statement *make_statement (T *arg);
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330
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331 // Create a statement list.
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332 tree_statement_list *make_statement_list (tree_statement *stmt);
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333
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334 // Append a statement to an existing statement list.
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335 tree_statement_list *
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336 append_statement_list (tree_statement_list *list, char sep,
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337 tree_statement *stmt, bool warn_missing_semi);
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338
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339 // Generic error messages.
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340 void bison_error (const char *s);
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341
16153
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342 // Have we found an explicit end to a function?
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343 bool endfunction_found;
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344
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345 // TRUE means we are in the process of autoloading a function.
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346 bool autoloading;
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347
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348 // TRUE means the current function file was found in a relative path
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349 // element.
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350 bool fcn_file_from_relative_lookup;
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351
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352 // FALSE if we are still at the primary function. Subfunctions can
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353 // only be declared inside function files.
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354 bool parsing_subfunctions;
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355
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356 // Maximum function depth detected. Used to determine whether
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357 // we have nested functions or just implicitly ended subfunctions.
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358 int max_fcn_depth;
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359
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360 // = 0 currently outside any function.
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361 // = 1 inside the primary function or a subfunction.
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362 // > 1 means we are looking at a function definition that seems to be
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363 // inside a function. Note that the function still might not be a
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364 // nested function.
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365 int curr_fcn_depth;
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366
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367 // Scope where we install all subfunctions and nested functions. Only
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368 // used while reading function files.
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369 symbol_table::scope_id primary_fcn_scope;
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370
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371 // Name of the current class when we are parsing class methods or
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372 // constructors.
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373 std::string curr_class_name;
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374
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375 // A stack holding the nested function scopes being parsed.
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376 // We don't use std::stack, because we want the clear method. Also, we
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377 // must access one from the top
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378 std::vector<symbol_table::scope_id> function_scopes;
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379
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380 // Pointer to the primary user function or user script function.
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381 octave_function *primary_fcn_ptr;
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382
16627
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383 // List of subfunction names, initially in the order they are
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384 // installed in the symbol table, then ordered as they appear in the
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385 // file. Eventually stashed in the primary function object.
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386 std::list<std::string> subfunction_names;
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387
16177
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388 // Result of parsing input.
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389 tree_statement_list *stmt_list;
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390
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391 // State of the lexer.
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392 octave_base_lexer& lexer;
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393
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394 private:
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395
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396 // No copying!
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397
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398 octave_base_parser (const octave_base_parser&);
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399
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400 octave_base_parser& operator = (const octave_base_parser&);
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401 };
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402
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403 class
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404 octave_parser : public octave_base_parser
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405 {
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406 public:
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407
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408 octave_parser (void)
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409 : octave_base_parser (*(new octave_lexer ()))
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410 { }
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411
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412 octave_parser (FILE *file)
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413 : octave_base_parser (*(new octave_lexer (file)))
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414 { }
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415
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416 octave_parser (const std::string& eval_string)
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417 : octave_base_parser (*(new octave_lexer (eval_string)))
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418 { }
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419
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420 octave_parser (octave_lexer& lxr)
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421 : octave_base_parser (lxr)
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422 { }
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423
16287
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424 ~octave_parser (void) { }
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425
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426 int run (void);
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427
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428 private:
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429
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430 // No copying!
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431
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432 octave_parser (const octave_parser&);
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433
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434 octave_parser& operator = (const octave_parser&);
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435 };
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436
16294
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437 class
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438 octave_push_parser : public octave_base_parser
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439 {
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440 public:
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441
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442 octave_push_parser (void)
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443 : octave_base_parser (*(new octave_push_lexer ())), parser_state (0)
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444 {
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445 init ();
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446 }
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447
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448 ~octave_push_parser (void);
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449
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450 void init (void);
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451
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452 int run (const std::string& input, bool eof);
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453
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454 private:
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455
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456 // Internal state of the Bison parser.
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457 void *parser_state;
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458
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459 // No copying!
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460
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461 octave_push_parser (const octave_push_parser&);
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462
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463 octave_push_parser& operator = (const octave_push_parser&);
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464 };
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465
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
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466 #endif