[1076] | 1 | /**********************************************************************
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| 2 | *
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| 3 | * display.cpp -- Context sensitive macro language
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| 4 | * Copyright (C) 1999 The New Zealand Digital Library Project
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| 5 | *
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| 6 | * A component of the Greenstone digital library software
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| 7 | * from the New Zealand Digital Library Project at the
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| 8 | * University of Waikato, New Zealand.
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| 9 | *
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| 10 | * This program is free software; you can redistribute it and/or modify
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| 11 | * it under the terms of the GNU General Public License as published by
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| 12 | * the Free Software Foundation; either version 2 of the License, or
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| 13 | * (at your option) any later version.
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| 14 | *
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| 15 | * This program is distributed in the hope that it will be useful,
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| 16 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 17 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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| 18 | * GNU General Public License for more details.
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| 19 | *
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| 20 | * You should have received a copy of the GNU General Public License
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| 21 | * along with this program; if not, write to the Free Software
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| 22 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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| 23 | *
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| 24 | *********************************************************************/
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| 25 |
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| 26 | #include "display.h"
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| 27 | #include "gsdlunicode.h"
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| 28 | #include "unitool.h"
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| 29 | #include <assert.h>
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| 30 |
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| 31 | // include to get NULL
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| 32 | #include <stdlib.h>
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| 33 |
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[7397] | 34 | text_t displayclass::defaultpackage = "Global";
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[1076] | 35 |
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| 36 | /////////////////////////////////////
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| 37 | // misc classes
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| 38 | /////////////////////////////////////
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| 39 |
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| 40 |
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| 41 | // precedencetype defines a 'precedence value' for each parameter
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| 42 | typedef map<text_t, double, lttext_t> precedencetype;
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| 43 |
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| 44 |
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| 45 |
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| 46 | inline bool operator==(const mvalue &x, const mvalue &y) {
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| 47 | return (x.filename==y.filename && x.value==y.value);
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| 48 | }
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| 49 |
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| 50 | inline bool operator<(const mvalue &x, const mvalue &y) {
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| 51 | return (x.filename<y.filename ||
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| 52 | (x.filename==y.filename && x.filename<y.filename));
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| 53 | }
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| 54 |
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| 55 |
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| 56 |
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| 57 | /////////////////////////////////////
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[7386] | 58 | // stuff for parammacros_t
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[1076] | 59 | /////////////////////////////////////
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| 60 |
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| 61 | typedef map<text_t, mvalue, lttext_t> defparammap;
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| 62 | typedef map<text_t, defparammap, lttext_t> defmacromap;
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| 63 | typedef map<text_t, defmacromap, lttext_t> defpackagemap;
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| 64 |
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[7386] | 65 | // all methods in parammacros_t assume the parameters
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[1076] | 66 | // and packages in a standard form and not empty
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[7386] | 67 | class parammacros_t
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[1076] | 68 | {
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| 69 | protected:
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| 70 | defpackagemap macros;
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| 71 |
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| 72 | public:
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| 73 | typedef defpackagemap::const_iterator const_package_iterator;
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| 74 | typedef defpackagemap::size_type package_size_type;
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| 75 |
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| 76 | // setmacro returns 0 if there was no error,
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| 77 | // -1 if it redefined a macro
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| 78 | // -2 if it hid a Global macro
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| 79 | // -3 if it redefined a macro and hid a Global macro
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| 80 | // -4 if either a package, macroname, or params were not supplied
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| 81 | int setmacro(const text_t &package,
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| 82 | const text_t ¯oname,
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| 83 | const text_t ¶ms,
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| 84 | const text_t &filename,
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| 85 | const text_t ¯ovalue);
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| 86 |
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| 87 | void delmacro(const text_t &package,
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| 88 | const text_t ¯oname,
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| 89 | const text_t ¶ms);
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| 90 |
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| 91 | void clear () {macros.erase(macros.begin(), macros.end());}
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| 92 |
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| 93 | // top level stuff
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| 94 | const_package_iterator package_begin () const {return macros.begin();}
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| 95 | const_package_iterator package_end () const {return macros.end();}
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| 96 | bool package_empty () const {return macros.empty();}
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| 97 | package_size_type package_size() const {return macros.size();}
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| 98 |
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| 99 | // methods to find things
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| 100 | defmacromap *package_find (const text_t &packagename);
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| 101 | defparammap *macro_find (const text_t &packagename,
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| 102 | const text_t ¯oname);
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| 103 | mvalue *parameter_find (const text_t &packagename,
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| 104 | const text_t ¯oname,
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| 105 | const text_t ¶metername);
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| 106 | };
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| 107 |
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| 108 |
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| 109 | // setmacro returns 0 if there was no error,
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| 110 | // -1 if it redefined a macro
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| 111 | // -2 if it hid a Global macro
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| 112 | // -3 if it redefined a macro and hid a Global macro
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| 113 | // -4 if either a package, macroname, or params were not supplied
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[7386] | 114 | int parammacros_t::setmacro(const text_t &package,
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[1076] | 115 | const text_t ¯oname,
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| 116 | const text_t ¶ms,
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| 117 | const text_t &filename,
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| 118 | const text_t ¯ovalue)
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| 119 | {
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| 120 | paramhashtype paramhash;
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| 121 |
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| 122 | defmacromap *macromapptr;
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| 123 | defparammap *parammapptr;
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| 124 | mvalue *mvalueptr;
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| 125 |
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| 126 | int warning = 0;
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| 127 |
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| 128 | // check to see if we would be hiding a Global macro with the
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| 129 | // same name. Note: it doesn't matter what parameters are used
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| 130 | // a Global macro will still be hid by a non-Global one with
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| 131 | // the same name.
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[8727] | 132 | if ((package != displayclass::defaultpackage) &&
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| 133 | (macro_find (displayclass::defaultpackage, macroname) != NULL))
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[1076] | 134 | {
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| 135 | warning -= 2; // found the macroname
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| 136 | }
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| 137 |
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| 138 | // define this macro
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| 139 | macromapptr = &(macros[package]); // -- package
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| 140 | parammapptr = &((*macromapptr)[macroname]); // -- macro name
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| 141 | // -- parameters
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| 142 | if ((*parammapptr).find(params) != (*parammapptr).end()) {
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| 143 | warning -= 1; // found the parameters
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| 144 | }
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| 145 | mvalueptr = &((*parammapptr)[params]);
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| 146 |
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| 147 | // -- value
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| 148 | (*mvalueptr).filename = filename;
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| 149 | (*mvalueptr).value = macrovalue;
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| 150 |
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| 151 | return warning;
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| 152 | }
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| 153 |
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[7386] | 154 | void parammacros_t::delmacro(const text_t &package,
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[1076] | 155 | const text_t ¯oname,
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| 156 | const text_t ¶ms)
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| 157 | {
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| 158 | // make sure everything was supplied
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| 159 | if (package.empty() || macroname.empty() || params.empty()) return;
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| 160 |
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| 161 | // find the package and macroname
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| 162 | defparammap *parammapptr = macro_find(package, macroname);
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| 163 | if (parammapptr == NULL) return;
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| 164 |
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| 165 | // find the parameters
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| 166 | defparammap::iterator parammapit = parammapptr->find(params);
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| 167 | if (parammapit == parammapptr->end()) return;
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| 168 |
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| 169 | // finally delete this element
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| 170 | parammapptr->erase(parammapit);
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| 171 | }
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| 172 |
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[7386] | 173 | defmacromap *parammacros_t::package_find (const text_t &packagename)
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[1076] | 174 | {
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| 175 | if (packagename.empty()) return NULL;
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| 176 |
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| 177 | defpackagemap::iterator it = macros.find(packagename);
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| 178 | if (it == macros.end()) return NULL;
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| 179 |
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| 180 | return &((*it).second);
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| 181 | }
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| 182 |
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[7386] | 183 | defparammap *parammacros_t::macro_find (const text_t &packagename,
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[9025] | 184 | const text_t ¯oname)
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[1076] | 185 | {
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| 186 | defmacromap *macromapptr = package_find(packagename);
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| 187 | if (macromapptr == NULL || macroname.empty()) return NULL;
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[9025] | 188 |
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[1076] | 189 | defmacromap::iterator it = (*macromapptr).find(macroname);
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| 190 | if (it == (*macromapptr).end()) return NULL;
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| 191 |
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| 192 | return &((*it).second);
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| 193 | }
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| 194 |
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[7386] | 195 | mvalue *parammacros_t::parameter_find (const text_t &packagename,
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[1076] | 196 | const text_t ¯oname,
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| 197 | const text_t ¶metername)
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| 198 | {
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| 199 | defparammap *parammapptr = macro_find(packagename, macroname);
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| 200 | if (parammapptr == NULL || parametername.empty()) return NULL;
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| 201 |
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| 202 | defparammap::iterator it = (*parammapptr).find(parametername);
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| 203 | if (it == (*parammapptr).end()) return NULL;
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| 204 |
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| 205 | return &((*it).second);
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| 206 | }
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| 207 |
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| 208 |
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| 209 |
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| 210 | /////////////////////////////////////
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| 211 | // stuff for currentmacros_t
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| 212 | /////////////////////////////////////
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| 213 |
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| 214 | typedef map<text_t, mvalue, lttext_t> curmacromap;
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| 215 | typedef map<text_t, curmacromap, lttext_t> curpackagemap;
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| 216 |
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| 217 | // all methods in currentmacros_t assume the parameters
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| 218 | // and packages in a standard form and not empty
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| 219 | class currentmacros_t
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| 220 | {
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| 221 | protected:
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| 222 | curpackagemap macros;
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| 223 |
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| 224 | public:
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| 225 | typedef curpackagemap::const_iterator const_package_iterator;
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| 226 | typedef curpackagemap::size_type package_size_type;
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| 227 |
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| 228 | // setmacro returns 0 if there was no error,
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| 229 | // -1 if it redefined a macro
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| 230 | // -4 if either a package, or macroname were not supplied
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| 231 | int setmacro(const text_t &package,
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| 232 | const text_t ¯oname,
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| 233 | const text_t &filename,
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| 234 | const text_t ¯ovalue);
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| 235 |
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| 236 | void delmacro(const text_t &package,
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| 237 | const text_t ¯oname);
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| 238 |
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| 239 | void clear () {macros.erase(macros.begin(), macros.end());}
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| 240 |
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| 241 | // top level stuff
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| 242 | const_package_iterator package_begin () const {return macros.begin();}
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| 243 | const_package_iterator package_end () const {return macros.end();}
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| 244 | bool package_empty () const {return macros.empty();}
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| 245 | package_size_type package_size() const {return macros.size();}
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| 246 |
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| 247 | // methods to find things
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| 248 | curmacromap *package_find (const text_t &packagename);
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| 249 | mvalue *macro_find (const text_t &packagename,
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| 250 | const text_t ¯oname);
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| 251 | };
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| 252 |
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| 253 |
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| 254 | // setmacro returns 0 if there was no error,
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| 255 | // -1 if it redefined a macro
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| 256 | // -4 if either a package, or macroname were not supplied
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| 257 | int currentmacros_t::setmacro(const text_t &package,
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| 258 | const text_t ¯oname,
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| 259 | const text_t &filename,
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| 260 | const text_t ¯ovalue)
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| 261 | {
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| 262 | int warning = 0;
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| 263 |
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| 264 | // make sure everything was supplied
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| 265 | if (package.empty() || macroname.empty()) return -4;
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| 266 |
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| 267 | // define this macro
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| 268 | curmacromap *macromapptr = &(macros[package]);
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| 269 | if ((*macromapptr).find(macroname) != (*macromapptr).end())
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| 270 | {
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| 271 | warning -= 1; // found the macroname
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| 272 | }
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| 273 | mvalue *mvalueptr = &((*macromapptr)[macroname]);
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| 274 |
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| 275 | // -- value
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| 276 | (*mvalueptr).filename = filename;
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| 277 | (*mvalueptr).value = macrovalue;
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| 278 |
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| 279 | return warning;
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| 280 | }
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| 281 |
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| 282 | void currentmacros_t::delmacro(const text_t &package,
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| 283 | const text_t ¯oname)
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| 284 | {
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| 285 | // make sure everything was supplied
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| 286 | if (package.empty() || macroname.empty()) return;
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| 287 |
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| 288 | // find the package
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| 289 | curmacromap *macromapptr = package_find(package);
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| 290 | if (macromapptr == NULL) return;
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| 291 |
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| 292 | // find the macroname
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| 293 | curmacromap::iterator macromapit = macromapptr->find(macroname);
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| 294 | if (macromapit == macromapptr->end()) return;
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| 295 |
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| 296 | // finally delete this element
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| 297 | macromapptr->erase(macromapit);
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| 298 | }
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| 299 |
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| 300 | curmacromap *currentmacros_t::package_find (const text_t &packagename)
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| 301 | {
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| 302 | if (packagename.empty()) return NULL;
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| 303 |
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| 304 | curpackagemap::iterator it = macros.find(packagename);
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| 305 | if (it == macros.end()) return NULL;
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| 306 |
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| 307 | return &((*it).second);
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| 308 | }
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| 309 |
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| 310 | mvalue *currentmacros_t::macro_find (const text_t &packagename,
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| 311 | const text_t ¯oname)
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| 312 | {
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| 313 | curmacromap *macromapptr = package_find(packagename);
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| 314 | if (macromapptr == NULL || macroname.empty()) return NULL;
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| 315 |
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| 316 | curmacromap::iterator it = (*macromapptr).find(macroname);
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| 317 | if (it == (*macromapptr).end()) return NULL;
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| 318 |
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| 319 | return &((*it).second);
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| 320 | }
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| 321 |
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| 322 |
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| 323 |
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| 324 |
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| 325 | /////////////////////////////////////
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| 326 | // support functions
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| 327 | /////////////////////////////////////
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| 328 |
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| 329 | // this calculation of precedence will make one occurance of a high
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| 330 | // precedence item override many occurances of lower precedence items
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| 331 | void calcprecedence (const text_t &precedstr, precedencetype &precedhash)
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| 332 | {
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| 333 | text_t param;
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| 334 | double multiple = 5.0;
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| 335 | double nextprec = multiple;
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| 336 |
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| 337 | text_t::const_iterator here, end;
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| 338 |
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| 339 | // set precedhash to an empty hash
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| 340 | precedhash.erase(precedhash.begin(), precedhash.end());
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| 341 |
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| 342 | // iterate through paramstring ignoring space and extracting
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| 343 | // out key value pairs.
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| 344 | here = precedstr.begin();
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| 345 | end = precedstr.end();
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| 346 | while (here != end)
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| 347 | {
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| 348 | // get the next parameter
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| 349 | param.clear(); // set param to an empty string
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| 350 |
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| 351 | while (here != end)
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| 352 | {
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| 353 | if (*here == ',')
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| 354 | {
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| 355 | // found the end of the parameter
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[8727] | 356 | ++here;
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[1076] | 357 | break;
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| 358 | }
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| 359 | else if (*here == ' ')
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| 360 | {
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| 361 | // do nothing (ignore spaces)
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| 362 | }
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| 363 | else
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| 364 | {
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| 365 | // character in parameter
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| 366 | param.push_back (*here); // copy this character
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| 367 | }
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| 368 |
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[8727] | 369 | ++here;
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[1076] | 370 | }
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| 371 |
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| 372 | // if a parameter was found insert its value
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| 373 | if (!param.empty())
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| 374 | {
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| 375 | precedhash[param] = nextprec;
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| 376 | nextprec *= multiple;
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| 377 | }
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| 378 | }
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| 379 | }
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| 380 |
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| 381 |
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| 382 | // decides how specific any given parameter is to the page parameters. Returns
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| 383 | // negative if any options are different or else the sum of the precedence for
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| 384 | // the options which match.
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| 385 | double getspecificness(const paramhashtype &pageparams,
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| 386 | const paramhashtype &theseparams,
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| 387 | const precedencetype &precedhash)
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| 388 | {
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| 389 | double specificness = 0.0;
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| 390 | paramhashtype::const_iterator here, pagevalueit;
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| 391 | precedencetype::const_iterator precedit;
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| 392 | text_t thesekey, thesevalue, constignore("ignore");
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| 393 |
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| 394 | here = theseparams.begin();
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| 395 | while (here != theseparams.end())
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| 396 | {
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| 397 | thesekey = (*here).first;
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| 398 | thesevalue = (*here).second;
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| 399 |
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| 400 | if (thesekey == constignore)
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| 401 | {
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| 402 | // do nothing, this is a placeholder
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| 403 | }
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| 404 | else
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| 405 | {
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| 406 | pagevalueit = pageparams.find(thesekey);
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| 407 | if ((pagevalueit != pageparams.end()) &&
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| 408 | ((*pagevalueit).second == thesevalue))
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| 409 | {
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| 410 | // this parameter fits, add its precedence value
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| 411 | precedit = precedhash.find(thesekey);
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| 412 | if (precedit == precedhash.end())
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| 413 | specificness += 1.0; // no precedence defined
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| 414 | else
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| 415 | specificness += (*precedit).second;
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| 416 | }
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| 417 | else
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| 418 | {
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| 419 | return -1.0; // did not match
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| 420 | }
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| 421 | }
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| 422 |
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[8727] | 423 | ++here;
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[1076] | 424 | }
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| 425 |
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| 426 | return specificness;
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| 427 | }
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| 428 |
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| 429 |
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| 430 | void splitparams (const text_t ¶mstring, paramhashtype ¶mhash)
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| 431 | {
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| 432 | text_t key;
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| 433 | text_t value;
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| 434 |
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| 435 | text_t::const_iterator here, end;
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| 436 |
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| 437 | // set paramhash to an empty hash
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| 438 | paramhash.erase(paramhash.begin(), paramhash.end());
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| 439 |
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| 440 | // iterate through paramstring ignoring space and extracting
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| 441 | // out key value pairs.
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| 442 | here = paramstring.begin();
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| 443 | end = paramstring.end();
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| 444 | while (here != end)
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| 445 | {
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| 446 | // reset key and value
|
---|
| 447 | key.clear();
|
---|
| 448 | value.clear();
|
---|
| 449 |
|
---|
| 450 | // get key
|
---|
| 451 | while (here != end)
|
---|
| 452 | {
|
---|
| 453 | if (*here == ',')
|
---|
| 454 | {
|
---|
| 455 | // have a key with no value
|
---|
| 456 | break;
|
---|
| 457 | }
|
---|
| 458 | else if (*here == '=')
|
---|
| 459 | {
|
---|
| 460 | // found the end of the key
|
---|
[8727] | 461 | ++here;
|
---|
[1076] | 462 | break;
|
---|
| 463 | }
|
---|
| 464 | else if (*here == ' ')
|
---|
| 465 | {
|
---|
| 466 | // do nothing (ignore spaces)
|
---|
| 467 | }
|
---|
| 468 | else
|
---|
| 469 | {
|
---|
| 470 | // character in key
|
---|
| 471 | key.push_back (*here); // copy this character
|
---|
| 472 | }
|
---|
[8727] | 473 | ++here;
|
---|
[1076] | 474 | }
|
---|
| 475 |
|
---|
| 476 | // get value
|
---|
| 477 | while (here != end)
|
---|
| 478 | {
|
---|
| 479 | if (*here == '=')
|
---|
| 480 | {
|
---|
| 481 | // multiple values for one key, ignore previous
|
---|
| 482 | // values
|
---|
| 483 | value.clear();
|
---|
| 484 | }
|
---|
| 485 | else if (*here == ',')
|
---|
| 486 | {
|
---|
| 487 | // found the end of the value
|
---|
[8727] | 488 | ++here;
|
---|
[1076] | 489 | break;
|
---|
| 490 | }
|
---|
| 491 | else if (*here == ' ')
|
---|
| 492 | {
|
---|
| 493 | // do nothing (ignore spaces)
|
---|
| 494 | }
|
---|
| 495 | else
|
---|
| 496 | {
|
---|
| 497 | // character in value
|
---|
| 498 | value.push_back (*here); // copy this character
|
---|
| 499 | }
|
---|
[8727] | 500 | ++here;
|
---|
[1076] | 501 | }
|
---|
| 502 |
|
---|
| 503 | // if a key was found insert the key/value pair in
|
---|
| 504 | // the map
|
---|
| 505 | if (!key.empty())
|
---|
| 506 | {
|
---|
| 507 | paramhash[key] = value;
|
---|
| 508 | }
|
---|
| 509 | }
|
---|
| 510 | }
|
---|
| 511 |
|
---|
| 512 |
|
---|
| 513 | void joinparams (const paramhashtype ¶mhash, text_t ¶mstring)
|
---|
| 514 | {
|
---|
| 515 | //set paramstring to an empty string
|
---|
| 516 | paramstring.clear();
|
---|
| 517 |
|
---|
| 518 | //iterate through the paramhash
|
---|
| 519 | paramhashtype::const_iterator thepair;
|
---|
| 520 | int firstparam = 1;
|
---|
| 521 |
|
---|
[9593] | 522 | for (thepair=paramhash.begin();thepair!=paramhash.end(); ++thepair)
|
---|
[1076] | 523 | {
|
---|
| 524 | if (!firstparam) paramstring.push_back(',');
|
---|
| 525 | firstparam = 0;
|
---|
| 526 |
|
---|
| 527 | // insert pairs of "key=value"
|
---|
| 528 | text_t thevalue;
|
---|
| 529 | paramstring.append((*thepair).first);
|
---|
| 530 | paramstring.push_back('=');
|
---|
| 531 | paramstring.append((*thepair).second);
|
---|
| 532 | }
|
---|
| 533 | }
|
---|
| 534 |
|
---|
| 535 |
|
---|
| 536 |
|
---|
| 537 | /////////////////////////////////////
|
---|
| 538 | // parsing support functions
|
---|
| 539 | /////////////////////////////////////
|
---|
| 540 |
|
---|
| 541 | inline int my_isalpha (unsigned short c)
|
---|
| 542 | {
|
---|
| 543 | return ((c >= 'A' && c <= 'Z') ||
|
---|
| 544 | (c >= 'a' && c <= 'z'));
|
---|
| 545 | }
|
---|
| 546 |
|
---|
[8727] | 547 | inline int my_isalphanum (unsigned short c)
|
---|
| 548 | {
|
---|
| 549 | return ((c >= 'A' && c <= 'Z') ||
|
---|
| 550 | (c >= 'a' && c <= 'z') || (c >='0' && c <= '9'));
|
---|
| 551 | }
|
---|
| 552 |
|
---|
[1076] | 553 |
|
---|
| 554 |
|
---|
| 555 | inline unsigned short my_ttnextchar (text_t::const_iterator &here,
|
---|
| 556 | text_t::const_iterator &end)
|
---|
| 557 | {
|
---|
| 558 | if (here != end)
|
---|
| 559 | {
|
---|
[8727] | 560 | ++here;
|
---|
[1076] | 561 | if (here != end) return (*here);
|
---|
| 562 | }
|
---|
| 563 | return '\0';
|
---|
| 564 | }
|
---|
| 565 |
|
---|
| 566 |
|
---|
| 567 |
|
---|
| 568 | /////////////////////////////////////
|
---|
| 569 | // methods for display
|
---|
| 570 | /////////////////////////////////////
|
---|
| 571 |
|
---|
| 572 | // public methods for display
|
---|
| 573 |
|
---|
| 574 | displayclass::displayclass ()
|
---|
| 575 | {
|
---|
[7386] | 576 | defaultmacros = new parammacros_t;
|
---|
| 577 | collectionmacros = new parammacros_t;
|
---|
| 578 | defaultfiles = new fileinfomap;
|
---|
[1076] | 579 |
|
---|
| 580 | orderparamlist = new paramspeclist;
|
---|
| 581 | currentmacros = new currentmacros_t;
|
---|
| 582 |
|
---|
| 583 | outc = NULL;
|
---|
| 584 |
|
---|
[6021] | 585 | logout = NULL;
|
---|
[8485] | 586 |
|
---|
| 587 | /* this is a bit of a hack, but if the displayclass has never seen this
|
---|
| 588 | parameter before when it does openpage() then macros with this set will
|
---|
| 589 | always be ignored. And we set collection-specific macros after doing
|
---|
| 590 | openpage() - jrm */
|
---|
| 591 | allparams.insert("l=en");
|
---|
[1076] | 592 | }
|
---|
| 593 |
|
---|
| 594 |
|
---|
| 595 | displayclass::~displayclass ()
|
---|
| 596 | {
|
---|
| 597 | delete defaultmacros;
|
---|
[7386] | 598 | delete collectionmacros;
|
---|
[1076] | 599 | delete defaultfiles;
|
---|
| 600 |
|
---|
| 601 | delete orderparamlist;
|
---|
| 602 | delete currentmacros;
|
---|
| 603 | }
|
---|
| 604 |
|
---|
| 605 | // setdefaultmacro adds an entry to the list of default macros
|
---|
| 606 | // returns 0 if there was no error,
|
---|
| 607 | // -1 if it redefined a macro
|
---|
| 608 | // -2 if it hid a Global macro
|
---|
| 609 | // -3 if it redefined a macro and hid a Global macro
|
---|
| 610 | // -4 if no macroname was supplied
|
---|
[8727] | 611 | int displayclass::setdefaultmacro (const text_t &package, const text_t ¯oname,
|
---|
| 612 | const text_t &mparams, const text_t ¯ovalue)
|
---|
[1076] | 613 | {
|
---|
[8485] | 614 | return setdefaultmacro (package, macroname, mparams, "memory", macrovalue);
|
---|
[1076] | 615 | }
|
---|
| 616 |
|
---|
| 617 |
|
---|
| 618 |
|
---|
| 619 | // as we are using one character lookahead the
|
---|
| 620 | // value of line might be off by one.
|
---|
| 621 | // the input file must be in the utf-8 or unicode format
|
---|
| 622 | // initially for each file isunicode should be set to 0 and
|
---|
| 623 | // bigendian should be set to 1
|
---|
| 624 | // 0 will be returned when the end of the file has been found
|
---|
[3012] | 625 | unsigned short my_uni_get (/*unistream*/ifstream &fin, int &line,
|
---|
[1076] | 626 | int &isunicode, int &bigendian) {
|
---|
| 627 | unsigned short c = 0;
|
---|
| 628 |
|
---|
| 629 | if (isunicode) {
|
---|
| 630 | // unicode text
|
---|
| 631 | // get the next two characters
|
---|
[1217] | 632 | unsigned char c1 = 0, c2 = 0;
|
---|
| 633 |
|
---|
[3012] | 634 | if (!fin.eof()) c1=fin.get();
|
---|
| 635 | if (!fin.eof()) c2=fin.get();
|
---|
[1076] | 636 | else c1 = 0;
|
---|
| 637 |
|
---|
| 638 | // if they indicate the order get the next character
|
---|
| 639 | // otherwise just get these characters
|
---|
| 640 | if (c1 == 0xff && c2 == 0xfe) {
|
---|
| 641 | bigendian = 0;
|
---|
| 642 | c = my_uni_get (fin, line, isunicode, bigendian);
|
---|
| 643 | } else if (c1 == 0xfe && c2 == 0xff) {
|
---|
| 644 | bigendian = 1;
|
---|
| 645 | c = my_uni_get (fin, line, isunicode, bigendian);
|
---|
| 646 | } else c = (bigendian) ? (c1*256+c2) : (c2*256+c1);
|
---|
| 647 |
|
---|
| 648 | } else {
|
---|
| 649 | // utf-8 text
|
---|
| 650 | // how many characters we get depends on what we find
|
---|
[1217] | 651 | unsigned char c1 = 0, c2 = 0, c3 = 0;
|
---|
[1076] | 652 | while (!fin.eof()) {
|
---|
[3012] | 653 | c1=fin.get();
|
---|
[1076] | 654 | if (c1 == 0xfe || c1 == 0xff) {
|
---|
| 655 | // switch to unicode
|
---|
| 656 | isunicode = 1;
|
---|
[3012] | 657 | if (!fin.eof()) c2=fin.get();
|
---|
[1076] | 658 |
|
---|
| 659 | if (c1 == 0xff && c2 == 0xfe) bigendian = 0;
|
---|
| 660 | else bigendian = 1;
|
---|
| 661 |
|
---|
| 662 | c = my_uni_get (fin, line, isunicode, bigendian);
|
---|
| 663 | break;
|
---|
| 664 |
|
---|
| 665 | } else if (c1 <= 0x7f) {
|
---|
| 666 | // one byte character
|
---|
| 667 | c = c1;
|
---|
| 668 | break;
|
---|
| 669 |
|
---|
| 670 | } else if (c1 >= 0xc0 && c1 <= 0xdf) {
|
---|
| 671 | // two byte character
|
---|
[3012] | 672 | if (!fin.eof()) c2=fin.get();
|
---|
[1076] | 673 | c = ((c1 & 0x1f) << 6) + (c2 & 0x3f);
|
---|
| 674 | break;
|
---|
| 675 |
|
---|
| 676 | } else if (c1 >= 0xe0 && c1 <= 0xef) {
|
---|
| 677 | // three byte character
|
---|
[3012] | 678 | if (!fin.eof()) c2=fin.get();
|
---|
| 679 | if (!fin.eof()) c3=fin.get();
|
---|
[1076] | 680 | c = ((c1 & 0xf) << 12) + ((c2 & 0x3f) << 6) + (c3 & 0x3f);
|
---|
| 681 | break;
|
---|
| 682 | }
|
---|
| 683 |
|
---|
| 684 | // if we get here there was an error in the file, we should
|
---|
| 685 | // be able to recover from it however, maybe the file is in
|
---|
| 686 | // another encoding
|
---|
| 687 | }
|
---|
| 688 | }
|
---|
| 689 |
|
---|
[8727] | 690 | if (c == '\n') ++line;
|
---|
[1076] | 691 | return c;
|
---|
| 692 | }
|
---|
| 693 |
|
---|
| 694 |
|
---|
| 695 |
|
---|
[7386] | 696 | // loads a macro file into the specified macrotable datastructure
|
---|
[1076] | 697 | // returns 0 if didn't need to load the file (it was already loaded)
|
---|
| 698 | // 1 if was (re)loaded
|
---|
| 699 | // -1 an error occurred while trying to load the file
|
---|
[8727] | 700 | int displayclass::loadparammacros (parammacros_t* macrotable, const text_t &thisfilename) {
|
---|
[1076] | 701 | // convert the filename to a C string
|
---|
| 702 | char *filenamestr = thisfilename.getcstr();
|
---|
| 703 | outconvertclass text_t2ascii;
|
---|
| 704 |
|
---|
| 705 | // see if we need to open this file -- this isn't implemented yet
|
---|
| 706 |
|
---|
| 707 | // open the file
|
---|
[3012] | 708 | // unistream fin (filenamestr);
|
---|
| 709 | ifstream fin (filenamestr);
|
---|
[1217] | 710 |
|
---|
[1076] | 711 | if (fin.fail()) return -1; // read failed
|
---|
| 712 |
|
---|
[8727] | 713 | text_t package = defaultpackage;
|
---|
[1076] | 714 | int line = 1;
|
---|
| 715 | int isunicode = 0, bigendian = 1;
|
---|
| 716 |
|
---|
| 717 | // pre-fetch the next character
|
---|
| 718 | unsigned short c = my_uni_get(fin, line, isunicode, bigendian);
|
---|
| 719 |
|
---|
| 720 | text_t macropackage, macroname, macroparameters, macrovalue;
|
---|
| 721 | int err; // for keeping track of whether an error occurred somewhere
|
---|
| 722 |
|
---|
| 723 | while (!fin.eof()) {
|
---|
| 724 | // expect: white space, comment, "package", or macroname
|
---|
| 725 | if (is_unicode_space(c)) {
|
---|
| 726 | // found some white-space
|
---|
| 727 | c = my_uni_get(fin, line, isunicode, bigendian);
|
---|
| 728 |
|
---|
| 729 | } else if (c == '#') {
|
---|
| 730 | // found the start of a comment
|
---|
| 731 | // skip all characters up to the end of the line
|
---|
| 732 | c = my_uni_get(fin, line, isunicode, bigendian); // skip the '#'
|
---|
| 733 | while (!fin.eof ()) {
|
---|
| 734 | if (c == '\n') break;
|
---|
| 735 | c = my_uni_get(fin, line, isunicode, bigendian);
|
---|
| 736 | }
|
---|
| 737 |
|
---|
| 738 | } else if (c == 'p') {
|
---|
| 739 | // found the start of 'package' (hopefully)
|
---|
| 740 | // get everything up to the next space
|
---|
| 741 | text_t tmp;
|
---|
| 742 | while (!fin.eof() && my_isalpha(c)) {
|
---|
| 743 | tmp.push_back(c);
|
---|
| 744 | c = my_uni_get(fin, line, isunicode, bigendian);
|
---|
| 745 | }
|
---|
| 746 | // see if we have a package name
|
---|
| 747 | if (tmp == "package") {
|
---|
| 748 | // skip all white space
|
---|
| 749 | while (!fin.eof() && is_unicode_space(c))
|
---|
| 750 | c = my_uni_get(fin, line, isunicode, bigendian);
|
---|
| 751 |
|
---|
| 752 | // get the package name
|
---|
| 753 | tmp.clear(); // init tmp
|
---|
[8727] | 754 | while (!fin.eof() && my_isalphanum(c)) {
|
---|
[1076] | 755 | tmp.push_back(c);
|
---|
| 756 | c = my_uni_get(fin, line, isunicode, bigendian);
|
---|
| 757 | }
|
---|
| 758 | package = tmp;
|
---|
[8727] | 759 | if (package.empty()) package = defaultpackage;
|
---|
[1076] | 760 |
|
---|
| 761 | } else {
|
---|
| 762 | // error
|
---|
| 763 | if (logout != NULL) {
|
---|
[8727] | 764 | (*logout) << text_t2ascii << text_t("Expected 'package' on line ") + line + text_t(" of ") + thisfilename + "\n";
|
---|
[1076] | 765 | }
|
---|
| 766 | }
|
---|
| 767 |
|
---|
| 768 | } else if (c == '_') {
|
---|
| 769 | // found the start of a macro (hopefully)
|
---|
| 770 | c = my_uni_get(fin, line, isunicode, bigendian); // skip the _
|
---|
| 771 |
|
---|
| 772 | // init variables
|
---|
| 773 | err = 0;
|
---|
| 774 | macropackage = package;
|
---|
| 775 | macroname.clear(); // init macroname
|
---|
| 776 | macroparameters.clear(); // init macroname
|
---|
| 777 | macrovalue.clear(); // init macroname
|
---|
| 778 |
|
---|
| 779 | // get the macro name
|
---|
| 780 | while ((!fin.eof()) && (!is_unicode_space(c)) &&
|
---|
| 781 | (c != '\\') && (c != '_') &&(c != ':') &&
|
---|
| 782 | (macroname.size() < 80)) {
|
---|
| 783 | macroname.push_back(c);
|
---|
| 784 | c = my_uni_get(fin, line, isunicode, bigendian);
|
---|
| 785 | }
|
---|
| 786 |
|
---|
| 787 | if (c == ':') {
|
---|
| 788 | // we actually had the macro package
|
---|
| 789 | c = my_uni_get(fin, line, isunicode, bigendian); // skip :
|
---|
| 790 | macropackage = macroname;
|
---|
| 791 | macroname.clear ();
|
---|
| 792 |
|
---|
| 793 | // get the macro name (honest!)
|
---|
| 794 | while ((!fin.eof()) && (!is_unicode_space(c)) &&
|
---|
| 795 | (c != '\\') && (c != '_') &&(c != ':') &&
|
---|
| 796 | (macroname.size() < 80)) {
|
---|
| 797 | macroname.push_back(c);
|
---|
| 798 | c = my_uni_get(fin, line, isunicode, bigendian);
|
---|
| 799 | }
|
---|
| 800 | }
|
---|
| 801 |
|
---|
| 802 | if (!err && c == '_') {
|
---|
| 803 | c = my_uni_get(fin, line, isunicode, bigendian); // skip the _
|
---|
| 804 |
|
---|
| 805 | // skip all white space
|
---|
| 806 | while (!fin.eof() && is_unicode_space(c)) c = my_uni_get(fin, line, isunicode, bigendian);
|
---|
| 807 | } else if (!err) err = 1;
|
---|
| 808 |
|
---|
| 809 | // get the macro parameters (optional)
|
---|
| 810 | if (!err && c == '[') {
|
---|
| 811 | c = my_uni_get(fin, line, isunicode, bigendian); // skip the [
|
---|
| 812 | while ((!fin.eof()) && (c != '\n') && (c != '\\') && (c != ']')) {
|
---|
| 813 | macroparameters.push_back(c);
|
---|
| 814 | c = my_uni_get(fin, line, isunicode, bigendian);
|
---|
| 815 | }
|
---|
| 816 |
|
---|
| 817 | if (c == ']') {
|
---|
| 818 | c = my_uni_get(fin, line, isunicode, bigendian); // skip the ]
|
---|
| 819 |
|
---|
| 820 | // skip all white space
|
---|
| 821 | while (!fin.eof() && is_unicode_space(c)) c = my_uni_get(fin, line, isunicode, bigendian);
|
---|
| 822 | }
|
---|
| 823 | else if (!err) err = 2;
|
---|
| 824 | }
|
---|
| 825 |
|
---|
| 826 | // get the macro value
|
---|
| 827 | if (!err && c == '{') {
|
---|
| 828 | c = my_uni_get(fin, line, isunicode, bigendian); // skip the {
|
---|
| 829 | while ((!fin.eof()) && (c != '}')) {
|
---|
| 830 | if (c == '\\') {
|
---|
| 831 | macrovalue.push_back(c); // keep the '\'
|
---|
| 832 | c = my_uni_get(fin, line, isunicode, bigendian); // store the *next* value regardless
|
---|
| 833 | if (!fin.eof()) macrovalue.push_back(c);
|
---|
| 834 | c = my_uni_get(fin, line, isunicode, bigendian);
|
---|
| 835 | }
|
---|
[24965] | 836 | // DL CONSULTING FIX: Fix bug where the end of the macro definition would be missed if a backslash
|
---|
| 837 | // was the second-to-last character of the macro. [Michael Dewsnip, DL Consulting Ltd.]
|
---|
| 838 | else
|
---|
| 839 | {
|
---|
| 840 | macrovalue.push_back(c);
|
---|
| 841 | c = my_uni_get(fin, line, isunicode, bigendian);
|
---|
| 842 | }
|
---|
[1076] | 843 | }
|
---|
| 844 |
|
---|
| 845 | if (c == '}') {
|
---|
| 846 | c = my_uni_get(fin, line, isunicode, bigendian); // skip the }
|
---|
| 847 |
|
---|
| 848 | // define the macro
|
---|
[7386] | 849 | err = setparammacro (macrotable, macropackage, macroname, macroparameters,
|
---|
| 850 | thisfilename, macrovalue);
|
---|
[1076] | 851 | if ((err == -1 || err == -3) && logout != NULL) {
|
---|
[8727] | 852 | (*logout) << text_t2ascii << ("Warning: redefinition of _" + package + ":" + macroname + "_[" + macroparameters + "] on line " + line + " of " + thisfilename + "\n");
|
---|
[1076] | 853 |
|
---|
| 854 | } else if (err == -2 && logout != NULL) {
|
---|
[1495] | 855 | // I don't think we really want this warning since it's a very
|
---|
| 856 | // common occurance - Stefan.
|
---|
[1076] | 857 |
|
---|
[1495] | 858 | // (*logout) << text_t2ascii << "Warning: _" <<
|
---|
| 859 | // package << ":" << macroname << "_[" << macroparameters <<
|
---|
| 860 | // "] on line ";
|
---|
| 861 | // (*logout) << line;
|
---|
| 862 | // (*logout) << text_t2ascii << " of " <<
|
---|
| 863 | // thisfilename << " hides a Global macro with the same name\n";
|
---|
| 864 |
|
---|
[1076] | 865 | } else if (err == -4 && logout != NULL) {
|
---|
[8727] | 866 | (*logout) << text_t2ascii << text_t("Error: macro name expected on line ") + line + text_t(" of ") + thisfilename + "\n";
|
---|
[1076] | 867 | }
|
---|
| 868 |
|
---|
| 869 | err = 0; // for the test below
|
---|
| 870 | }
|
---|
| 871 | else if (!err) err = 3;
|
---|
| 872 | }
|
---|
| 873 | else if (!err) err = 4;
|
---|
| 874 |
|
---|
| 875 | if (err) {
|
---|
| 876 | // found an error, skip to the end of the line
|
---|
| 877 | if (logout != NULL) {
|
---|
[8727] | 878 | text_t message = "Error: ";
|
---|
| 879 | if (err == 1) message += "'_'";
|
---|
| 880 | else if (err == 2) message += "']'";
|
---|
| 881 | else if (err == 3) message += "'}'";
|
---|
| 882 | else if (err == 4) message += "'{'";
|
---|
| 883 | message += " expected on line ";
|
---|
| 884 | message += line;
|
---|
| 885 | message += " of " + thisfilename + "\n";
|
---|
| 886 | (*logout) << text_t2ascii << message;
|
---|
| 887 |
|
---|
| 888 | // (*logout) << text_t2ascii << "Error: ";
|
---|
| 889 | // if (err == 1) (*logout) << text_t2ascii << "'_'";
|
---|
| 890 | // else if (err == 2) (*logout) << text_t2ascii << "']'";
|
---|
| 891 | // else if (err == 3) (*logout) << text_t2ascii << "'}'";
|
---|
| 892 | // else if (err == 4) (*logout) << text_t2ascii << "'{'";
|
---|
| 893 | // (*logout) << text_t2ascii << " expected on line ";
|
---|
| 894 | // (*logout) << line ;
|
---|
| 895 | // (*logout) << text_t2ascii << " of " << thisfilename << "\n";
|
---|
[1076] | 896 | }
|
---|
| 897 | while (!fin.eof ()) {
|
---|
| 898 | if (c == '\n') break;
|
---|
| 899 | c = my_uni_get(fin, line, isunicode, bigendian);
|
---|
| 900 | }
|
---|
| 901 | }
|
---|
| 902 |
|
---|
| 903 | } else {
|
---|
| 904 | // found an error, skip to the end of the line
|
---|
| 905 | if (logout != NULL) {
|
---|
[8727] | 906 | (*logout) << text_t2ascii << text_t("Error: Unexpected input on line ") + line + text_t(" of ") + thisfilename + "\n";
|
---|
[1076] | 907 | }
|
---|
| 908 | while (!fin.eof ()) {
|
---|
| 909 | if (c == '\n') break;
|
---|
| 910 | c = my_uni_get(fin, line, isunicode, bigendian);
|
---|
| 911 | }
|
---|
| 912 |
|
---|
| 913 | }
|
---|
| 914 | }
|
---|
| 915 |
|
---|
| 916 | fin.close ();
|
---|
| 917 |
|
---|
| 918 | // free up memory
|
---|
[8727] | 919 | delete []filenamestr;
|
---|
[1076] | 920 | return 0;
|
---|
| 921 | }
|
---|
| 922 |
|
---|
[7386] | 923 |
|
---|
| 924 | // loads a default macro file (if it isn't already loaded)
|
---|
| 925 | // returns 0 if didn't need to load the file (it was already loaded)
|
---|
| 926 | // 1 if was (re)loaded
|
---|
| 927 | // -1 an error occurred while trying to load the file
|
---|
[8727] | 928 | int displayclass::loaddefaultmacros (const text_t &thisfilename)
|
---|
[7386] | 929 | {
|
---|
| 930 | return loadparammacros(defaultmacros,thisfilename);
|
---|
| 931 | }
|
---|
| 932 |
|
---|
| 933 | // loads a collection specific macro file
|
---|
| 934 | // returns 0 if didn't need to load the file (it was already loaded)
|
---|
| 935 | // 1 if was (re)loaded
|
---|
| 936 | // -1 an error occurred while trying to load the file
|
---|
[8727] | 937 | int displayclass::loadcollectionmacros (const text_t &thisfilename)
|
---|
[7386] | 938 | {
|
---|
| 939 | return loadparammacros(collectionmacros,thisfilename);
|
---|
| 940 | }
|
---|
| 941 |
|
---|
| 942 |
|
---|
[6021] | 943 | void displayclass::unloaddefaultmacros () {
|
---|
| 944 | defaultmacros->clear();
|
---|
| 945 | }
|
---|
[1076] | 946 |
|
---|
[7386] | 947 | void displayclass::unloadcollectionmacros () {
|
---|
| 948 | collectionmacros->clear();
|
---|
| 949 | }
|
---|
| 950 |
|
---|
[1076] | 951 | // prepares to create a page.
|
---|
| 952 | void displayclass::openpage (const text_t &thispageparams,
|
---|
| 953 | const text_t &thisprecedence)
|
---|
| 954 | {
|
---|
| 955 | // init variables
|
---|
| 956 | currentmacros->clear();
|
---|
| 957 |
|
---|
| 958 | // reload any default macro files which have changed.
|
---|
| 959 | if (checkdefaultmacrofiles() < 0)
|
---|
| 960 | {
|
---|
| 961 | // print error message
|
---|
| 962 | }
|
---|
| 963 |
|
---|
| 964 | setpageparams (thispageparams, thisprecedence);
|
---|
| 965 | }
|
---|
| 966 |
|
---|
| 967 |
|
---|
| 968 | // changes the parameters for the current page.
|
---|
| 969 | void displayclass::setpageparams (text_t thispageparams,
|
---|
| 970 | text_t thisprecedence)
|
---|
| 971 | {
|
---|
| 972 | paramhashtype thissplitparams, splittheseparams;
|
---|
| 973 | precedencetype precedhash;
|
---|
| 974 | text_tset::iterator text_tsetit;
|
---|
| 975 | paramspec tmpps;
|
---|
| 976 |
|
---|
| 977 | precedence = thisprecedence;
|
---|
| 978 | calcprecedence(thisprecedence, precedhash);
|
---|
| 979 |
|
---|
| 980 | splitparams(thispageparams, thissplitparams);
|
---|
| 981 | joinparams(thissplitparams, thispageparams);
|
---|
| 982 | params = thispageparams;
|
---|
| 983 |
|
---|
| 984 | // get a list of parameters with their specificness
|
---|
| 985 | orderparamlist->erase(orderparamlist->begin(), orderparamlist->end());
|
---|
| 986 | for (text_tsetit=allparams.begin();
|
---|
| 987 | text_tsetit!=allparams.end();
|
---|
[8727] | 988 | ++text_tsetit)
|
---|
[1076] | 989 | {
|
---|
| 990 | tmpps.param = (*text_tsetit);
|
---|
| 991 | splitparams(tmpps.param, splittheseparams);
|
---|
| 992 | tmpps.spec = getspecificness(thissplitparams, splittheseparams, precedhash);
|
---|
| 993 | if (tmpps.spec >= 0)
|
---|
| 994 | {
|
---|
| 995 | orderparamlist->push_back (tmpps);
|
---|
| 996 | }
|
---|
| 997 | }
|
---|
| 998 |
|
---|
| 999 | // sort the list
|
---|
| 1000 | sort(orderparamlist->begin(), orderparamlist->end());
|
---|
| 1001 |
|
---|
[8485] | 1002 | #if 0 // debugging
|
---|
| 1003 | outconvertclass text_t2ascii;
|
---|
| 1004 |
|
---|
| 1005 | paramspeclist::iterator pshere = orderparamlist->begin();
|
---|
| 1006 | paramspeclist::iterator psend = orderparamlist->end();
|
---|
| 1007 | while (pshere != psend)
|
---|
| 1008 | {
|
---|
| 1009 | cerr << text_t2ascii << "param=" << (*pshere).param;
|
---|
| 1010 | cerr << " spec=" << (int)((*pshere).spec) << "\n";
|
---|
[8727] | 1011 | ++pshere;
|
---|
[8485] | 1012 | }
|
---|
| 1013 | #endif
|
---|
[1076] | 1014 | }
|
---|
| 1015 |
|
---|
| 1016 |
|
---|
| 1017 | // overrides (or sets) a macro for the current page.
|
---|
| 1018 | // returns 0 if there was no error,
|
---|
| 1019 | // -1 if it redefined a macro
|
---|
| 1020 | // -4 if no macroname was supplied
|
---|
| 1021 | int displayclass::setmacro (const text_t ¯oname,
|
---|
[8727] | 1022 | const text_t &package,
|
---|
[7386] | 1023 | const text_t ¯ovalue)
|
---|
[1076] | 1024 | {
|
---|
| 1025 | // make sure a macroname was supplied
|
---|
| 1026 | if (macroname.empty()) return -4;
|
---|
| 1027 |
|
---|
| 1028 | // make package "Global" if it doesn't point to anything yet
|
---|
[8727] | 1029 | if (package.empty())
|
---|
| 1030 | return currentmacros->setmacro(defaultpackage, macroname, "memory", macrovalue);
|
---|
| 1031 |
|
---|
[1076] | 1032 | // set the macro
|
---|
| 1033 | return currentmacros->setmacro(package, macroname, "memory", macrovalue);
|
---|
| 1034 | }
|
---|
| 1035 |
|
---|
[8727] | 1036 | int displayclass::setmacroif (const text_t ¯o_to_set_and_test,
|
---|
| 1037 | const text_t ¯o_to_set_if_macro_not_set,
|
---|
| 1038 | const text_t ¯oname,
|
---|
| 1039 | const text_t &package) {
|
---|
| 1040 |
|
---|
| 1041 | if (macroname.empty()) return -4;
|
---|
| 1042 | if (macro_to_set_and_test.empty()) return -40;
|
---|
| 1043 |
|
---|
| 1044 | text_t temp;
|
---|
| 1045 | expandstring(defaultpackage, macro_to_set_and_test, temp);
|
---|
| 1046 |
|
---|
| 1047 | if (package.empty()) {
|
---|
| 1048 | if (temp == macro_to_set_and_test) return currentmacros->setmacro(defaultpackage, macroname, "memory", macro_to_set_if_macro_not_set);
|
---|
| 1049 | return currentmacros->setmacro(defaultpackage, macroname, "memory", macro_to_set_and_test);
|
---|
| 1050 | } else {
|
---|
| 1051 | if (temp == macro_to_set_and_test) return currentmacros->setmacro(package, macroname, "memory", macro_to_set_if_macro_not_set);
|
---|
| 1052 | return currentmacros->setmacro(package, macroname, "memory", macro_to_set_and_test);
|
---|
| 1053 |
|
---|
| 1054 | }
|
---|
[1076] | 1055 | }
|
---|
| 1056 |
|
---|
[8727] | 1057 | void displayclass::expandstring (const text_t &package, const text_t &inputtext,
|
---|
[1076] | 1058 | text_t &outputtext, int recursiondepth)
|
---|
| 1059 | {
|
---|
| 1060 | text_t macroname, macropackage, macroargs;
|
---|
| 1061 | text_t::const_iterator tthere = inputtext.begin();
|
---|
| 1062 | text_t::const_iterator ttend = inputtext.end();
|
---|
| 1063 | unsigned short c = '\0';
|
---|
[2965] | 1064 | int openbrackets=0;
|
---|
[1076] | 1065 |
|
---|
[8727] | 1066 | if (package.empty()) expandstring(defaultpackage, inputtext, outputtext, recursiondepth);
|
---|
[1076] | 1067 |
|
---|
| 1068 | outputtext.clear();
|
---|
| 1069 | // use one-character lookahead
|
---|
| 1070 | if (tthere != ttend) c = (*tthere);
|
---|
| 1071 | while (tthere != ttend)
|
---|
| 1072 | {
|
---|
| 1073 | if (c == '\\')
|
---|
| 1074 | {
|
---|
| 1075 | // found an escape character
|
---|
| 1076 | c = my_ttnextchar (tthere, ttend); // skip the escape character
|
---|
| 1077 | if (tthere != ttend)
|
---|
| 1078 | {
|
---|
| 1079 | if (c == 'n') outputtext.push_back('\n');
|
---|
| 1080 | else if (c == 't') outputtext.push_back('\t');
|
---|
| 1081 | else outputtext.push_back(c);
|
---|
| 1082 | }
|
---|
| 1083 | c = my_ttnextchar (tthere, ttend);
|
---|
| 1084 |
|
---|
| 1085 | }
|
---|
| 1086 | else if (c == '_')
|
---|
| 1087 | {
|
---|
| 1088 | // might have found the start of a macro
|
---|
| 1089 |
|
---|
| 1090 | // embedded macros (macros within the names
|
---|
| 1091 | // of other macros) are no longer supported -- Rodger.
|
---|
| 1092 |
|
---|
| 1093 | // save the current state (in case we need to back out)
|
---|
| 1094 | text_t::const_iterator savedtthere = tthere;
|
---|
| 1095 | unsigned short savedc = c;
|
---|
| 1096 |
|
---|
| 1097 | macroname.clear();
|
---|
| 1098 | macropackage = package;
|
---|
| 1099 | macroargs.clear();
|
---|
| 1100 |
|
---|
| 1101 | c = my_ttnextchar (tthere, ttend); // skip the '_'
|
---|
| 1102 |
|
---|
| 1103 | // get the macroname
|
---|
| 1104 | while (tthere != ttend && (!is_unicode_space(c)) &&
|
---|
| 1105 | (c != '\\') && (c != '_') &&(c != ':') &&
|
---|
| 1106 | (macroname.size() < 80))
|
---|
| 1107 | {
|
---|
| 1108 | macroname.push_back((unsigned char)c);
|
---|
| 1109 | c = my_ttnextchar (tthere, ttend);
|
---|
| 1110 | }
|
---|
| 1111 |
|
---|
| 1112 | if (c == ':')
|
---|
| 1113 | {
|
---|
| 1114 | // we actually had the macro package
|
---|
| 1115 | c = my_ttnextchar (tthere, ttend);
|
---|
| 1116 | macropackage = macroname;
|
---|
| 1117 | macroname.clear ();
|
---|
| 1118 |
|
---|
| 1119 | // get the macro name (honest!)
|
---|
| 1120 | while ((tthere != ttend) && (!is_unicode_space(c)) &&
|
---|
| 1121 | (c != '\\') && (c != '_') &&(c != ':') &&
|
---|
| 1122 | (macroname.size() < 80))
|
---|
| 1123 | {
|
---|
| 1124 | macroname.push_back((unsigned char)c);
|
---|
| 1125 | c = my_ttnextchar (tthere, ttend);
|
---|
| 1126 | }
|
---|
| 1127 | }
|
---|
| 1128 |
|
---|
| 1129 | if ((tthere != ttend) && (c == '_') &&
|
---|
| 1130 | (macroname.size() > 0))
|
---|
| 1131 | {
|
---|
| 1132 | // found a macro!!!! (maybe)
|
---|
| 1133 | c = my_ttnextchar (tthere, ttend); // skip the '_'
|
---|
| 1134 |
|
---|
| 1135 | // get the parameters (if there are any)
|
---|
| 1136 | if ((tthere != ttend) && (c == '('))
|
---|
| 1137 | {
|
---|
| 1138 | c = my_ttnextchar (tthere, ttend); // skip '('
|
---|
[8727] | 1139 | ++openbrackets;
|
---|
[1076] | 1140 | // have to be careful of quotes
|
---|
| 1141 | unsigned short quote = '\0';
|
---|
| 1142 | while (tthere != ttend)
|
---|
| 1143 | {
|
---|
| 1144 | if (c == '\\')
|
---|
| 1145 | {
|
---|
| 1146 | // have an escape character, save escape
|
---|
| 1147 | // character and next character as well
|
---|
| 1148 | macroargs.push_back (c);
|
---|
| 1149 | c = my_ttnextchar (tthere, ttend);
|
---|
| 1150 |
|
---|
| 1151 | }
|
---|
| 1152 | else if (quote == '\0')
|
---|
| 1153 | {
|
---|
| 1154 | // not in a quote at the moment
|
---|
[2965] | 1155 | if (c == '(')
|
---|
[1076] | 1156 | {
|
---|
[8727] | 1157 | ++openbrackets;
|
---|
[2965] | 1158 | }
|
---|
| 1159 | else if (c == ')')
|
---|
| 1160 | {
|
---|
[8727] | 1161 | --openbrackets;
|
---|
[2965] | 1162 | if (openbrackets==0) {
|
---|
| 1163 | // found end of the arguments
|
---|
| 1164 | c = my_ttnextchar (tthere, ttend); // skip ')'
|
---|
| 1165 | break;
|
---|
| 1166 | } else {
|
---|
| 1167 | // nested brackets
|
---|
| 1168 | }
|
---|
[1076] | 1169 | }
|
---|
| 1170 | else if (c == '\'' || c == '\"')
|
---|
| 1171 | {
|
---|
| 1172 | // found a quote
|
---|
| 1173 | quote = c;
|
---|
| 1174 | }
|
---|
| 1175 |
|
---|
| 1176 | }
|
---|
| 1177 | else
|
---|
| 1178 | {
|
---|
| 1179 | // we are in a quote
|
---|
| 1180 | if (c == quote) quote = '\0';
|
---|
| 1181 | }
|
---|
| 1182 |
|
---|
| 1183 | // save this character
|
---|
| 1184 | if (tthere != ttend) macroargs.push_back (c);
|
---|
| 1185 | c = my_ttnextchar (tthere, ttend);
|
---|
[2965] | 1186 | } // while (tthere != ttend)
|
---|
[1076] | 1187 | }
|
---|
| 1188 |
|
---|
| 1189 | //
|
---|
| 1190 | // we now have the macropackage, macroname, and macroargs
|
---|
| 1191 | //
|
---|
| 1192 |
|
---|
| 1193 | // try to expand out this macro
|
---|
| 1194 | text_t expandedmacro;
|
---|
[8727] | 1195 | if (macro (macroname, macropackage.empty()?defaultpackage:macropackage, macroargs, expandedmacro, recursiondepth))
|
---|
[1076] | 1196 | {
|
---|
| 1197 | // append the expanded macro
|
---|
| 1198 | outputtext += expandedmacro;
|
---|
| 1199 | }
|
---|
| 1200 | else
|
---|
| 1201 | {
|
---|
| 1202 | // wasn't a macro
|
---|
| 1203 | tthere = savedtthere;
|
---|
| 1204 | c = savedc;
|
---|
| 1205 | outputtext.push_back(c); // the '_'
|
---|
| 1206 | c = my_ttnextchar (tthere, ttend);
|
---|
| 1207 | }
|
---|
| 1208 |
|
---|
| 1209 |
|
---|
| 1210 | }
|
---|
| 1211 | else
|
---|
| 1212 | {
|
---|
| 1213 | // wasn't a macro
|
---|
| 1214 | tthere = savedtthere;
|
---|
| 1215 | c = savedc;
|
---|
| 1216 | outputtext.push_back(c); // the '_'
|
---|
| 1217 | c = my_ttnextchar (tthere, ttend);
|
---|
| 1218 | }
|
---|
| 1219 |
|
---|
| 1220 | }
|
---|
| 1221 | else
|
---|
| 1222 | {
|
---|
| 1223 | // nothing of interest
|
---|
| 1224 | outputtext.push_back(c); // the '_'
|
---|
| 1225 | c = my_ttnextchar (tthere, ttend);
|
---|
| 1226 | }
|
---|
[2965] | 1227 | } // end of while (tthere != ttend)
|
---|
[1076] | 1228 | }
|
---|
| 1229 |
|
---|
| 1230 | ostream *displayclass::setlogout (ostream *thelogout) {
|
---|
| 1231 |
|
---|
| 1232 | ostream *oldlogout = logout;
|
---|
| 1233 | logout = thelogout;
|
---|
| 1234 | return oldlogout;
|
---|
| 1235 | }
|
---|
| 1236 |
|
---|
| 1237 | // protected methods for display
|
---|
| 1238 |
|
---|
| 1239 | // reloads any default macro files which have changed
|
---|
| 1240 | // returns 0 no errors occurred
|
---|
| 1241 | // -1 an error occurred while trying to load one of the files
|
---|
| 1242 | int displayclass::checkdefaultmacrofiles ()
|
---|
| 1243 | {
|
---|
| 1244 | // this isn't implemented yet
|
---|
| 1245 | return 0;
|
---|
| 1246 | }
|
---|
| 1247 |
|
---|
| 1248 | // isdefaultmacro sees if there is an entry in the list of
|
---|
| 1249 | // default macros with the given package and macro name
|
---|
| 1250 | // returns 0 if no macros in the package or in the global package
|
---|
| 1251 | // were found
|
---|
| 1252 | // 1 if no macros in the package were found but a macro
|
---|
| 1253 | // in the global package was found
|
---|
| 1254 | // 2 if a macro in the given package was found
|
---|
[8727] | 1255 | int displayclass::isdefaultmacro (const text_t &package, const text_t ¯oname) {
|
---|
[1076] | 1256 | // make sure a macroname was supplied
|
---|
| 1257 | if (macroname.empty()) return 0;
|
---|
| 1258 |
|
---|
[8727] | 1259 | if (!package.empty()) {
|
---|
| 1260 | // check the given package
|
---|
| 1261 | if (defaultmacros->macro_find(package, macroname) != NULL) return 2;
|
---|
| 1262 | }
|
---|
| 1263 |
|
---|
[1076] | 1264 | // check the Global package
|
---|
[8727] | 1265 | if (defaultmacros->macro_find(defaultpackage, macroname) != NULL) return 1;
|
---|
| 1266 | // not found
|
---|
[1076] | 1267 | return 0;
|
---|
| 1268 | }
|
---|
| 1269 |
|
---|
[8727] | 1270 | // havemacro sees if there is an entry in the list of macros or
|
---|
| 1271 | // default macros with the given package and macro name
|
---|
| 1272 | // returns 0 if no macros in the package or in the global package
|
---|
| 1273 | // were found
|
---|
| 1274 | // 1 if no macros in the package were found but a macro
|
---|
| 1275 | // in the global package was found
|
---|
| 1276 | // 2 if a macro in the given package was found
|
---|
| 1277 | // 4 if no macros in the package were found but a macro
|
---|
| 1278 | // in the global package was found in default macros
|
---|
| 1279 | // 8 if a macro in the given package was found in default
|
---|
| 1280 | int displayclass::havemacro(const text_t &package, const text_t ¯oname)
|
---|
| 1281 | {
|
---|
| 1282 | // make sure a macroname was supplied
|
---|
| 1283 | if (macroname.empty()) return 0;
|
---|
| 1284 |
|
---|
| 1285 | // make package "Global" if it doesn't point to anything yet
|
---|
| 1286 | if (package.empty()) {
|
---|
| 1287 | // check the Global package in current macros list
|
---|
| 1288 | if (currentmacros->macro_find(defaultpackage, macroname) != NULL) return 1;
|
---|
| 1289 |
|
---|
| 1290 | // check the Global package in default macros list
|
---|
| 1291 | if (defaultmacros->macro_find(defaultpackage, macroname) != NULL) return 4;
|
---|
| 1292 | } else {
|
---|
| 1293 | // check the given package in current macros list
|
---|
| 1294 | if (currentmacros->macro_find(package, macroname) != NULL) return 2;
|
---|
| 1295 |
|
---|
| 1296 | // check the Global package in current macros list
|
---|
| 1297 | if (currentmacros->macro_find(defaultpackage, macroname) != NULL) return 1;
|
---|
| 1298 |
|
---|
| 1299 | // check the given package in default macros list
|
---|
| 1300 | if (defaultmacros->macro_find(package, macroname) != NULL) return 8;
|
---|
| 1301 |
|
---|
| 1302 | // check the Global package in default macros list
|
---|
| 1303 | if (defaultmacros->macro_find(defaultpackage, macroname) != NULL) return 4;
|
---|
| 1304 | }
|
---|
[8976] | 1305 |
|
---|
| 1306 | // nothing was found
|
---|
| 1307 | return 0;
|
---|
[8727] | 1308 | }
|
---|
| 1309 |
|
---|
| 1310 |
|
---|
[7386] | 1311 | // setparammacro adds an entry to the list of default macros
|
---|
[1076] | 1312 | // returns 0 if there was no error,
|
---|
| 1313 | // -1 if it redefined a macro
|
---|
| 1314 | // -2 if it hid a Global macro
|
---|
| 1315 | // -3 if it redefined a macro and hid a Global macro
|
---|
| 1316 | // -4 if no macroname was supplied
|
---|
[7386] | 1317 | int displayclass::setparammacro (parammacros_t* macrotable,
|
---|
[8727] | 1318 | const text_t &package,
|
---|
| 1319 | const text_t ¯oname,
|
---|
| 1320 | text_t macroparams,
|
---|
| 1321 | const text_t &filename,
|
---|
[7386] | 1322 | const text_t ¯ovalue)
|
---|
[1076] | 1323 | {
|
---|
| 1324 | // make sure a macroname was supplied
|
---|
| 1325 | if (macroname.empty()) return -4;
|
---|
| 1326 |
|
---|
| 1327 | // put the parameters in a standard form
|
---|
| 1328 | paramhashtype paramhash;
|
---|
[8485] | 1329 | if (macroparams.empty()) macroparams = "ignore=yes";
|
---|
| 1330 | splitparams (macroparams, paramhash);
|
---|
| 1331 | joinparams (paramhash, macroparams);
|
---|
[1076] | 1332 |
|
---|
| 1333 | // remember these parameters
|
---|
[8485] | 1334 | allparams.insert (macroparams);
|
---|
[1076] | 1335 |
|
---|
| 1336 | // remember this filename (this part isn't finished yet -- Rodger).
|
---|
| 1337 |
|
---|
| 1338 | // set the macro
|
---|
[8727] | 1339 | if (package.empty()) {
|
---|
| 1340 | return macrotable->setmacro(defaultpackage, macroname, macroparams, filename, macrovalue);
|
---|
| 1341 | } else {
|
---|
| 1342 | return macrotable->setmacro(package, macroname, macroparams, filename, macrovalue);
|
---|
| 1343 | }
|
---|
[1076] | 1344 | }
|
---|
| 1345 |
|
---|
[7386] | 1346 | // setdefaultmacro adds an entry to the list of default macros
|
---|
| 1347 | // returns 0 if there was no error,
|
---|
| 1348 | // -1 if it redefined a macro
|
---|
| 1349 | // -2 if it hid a Global macro
|
---|
| 1350 | // -3 if it redefined a macro and hid a Global macro
|
---|
| 1351 | // -4 if no macroname was supplied
|
---|
[8727] | 1352 | int displayclass::setdefaultmacro (const text_t &package,
|
---|
| 1353 | const text_t ¯oname,
|
---|
| 1354 | text_t macroparams,
|
---|
| 1355 | const text_t &filename,
|
---|
[7386] | 1356 | const text_t ¯ovalue)
|
---|
| 1357 | {
|
---|
[8727] | 1358 | return setparammacro(defaultmacros,package,macroname,
|
---|
| 1359 | macroparams,filename,macrovalue);
|
---|
[7386] | 1360 | }
|
---|
[1076] | 1361 |
|
---|
[8485] | 1362 | // public function
|
---|
[8727] | 1363 | int displayclass::setcollectionmacro(const text_t &package,
|
---|
| 1364 | const text_t ¯oname,
|
---|
| 1365 | text_t mparams,
|
---|
| 1366 | const text_t ¯ovalue)
|
---|
[8485] | 1367 | {
|
---|
| 1368 | return setcollectionmacro(package, macroname, mparams, "memory", macrovalue);
|
---|
| 1369 | }
|
---|
[7386] | 1370 |
|
---|
| 1371 | // setcollectionmacro adds an entry to the list of collection specific macros
|
---|
| 1372 | // returns 0 if there was no error,
|
---|
| 1373 | // -1 if it redefined a macro
|
---|
| 1374 | // -2 if it hid a Global macro
|
---|
| 1375 | // -3 if it redefined a macro and hid a Global macro
|
---|
| 1376 | // -4 if no macroname was supplied
|
---|
[8727] | 1377 | int displayclass::setcollectionmacro (const text_t &package,
|
---|
| 1378 | const text_t ¯oname,
|
---|
| 1379 | text_t mparams,
|
---|
| 1380 | const text_t &filename,
|
---|
[7386] | 1381 | const text_t ¯ovalue)
|
---|
| 1382 | {
|
---|
[8485] | 1383 | return setparammacro(collectionmacros,package,macroname,mparams,
|
---|
| 1384 | filename,macrovalue);
|
---|
[7386] | 1385 | }
|
---|
| 1386 |
|
---|
| 1387 |
|
---|
[1076] | 1388 | // evaluates a boolean expression
|
---|
| 1389 | // returns false if expr equals "" or "0".
|
---|
| 1390 | // otherwise returns true *unless* expr is
|
---|
| 1391 | // format "XXXX" eq/ne "dddd" in which case
|
---|
| 1392 | // the two quoted strings are compared
|
---|
[8727] | 1393 | bool displayclass::boolexpr (const text_t &package, const text_t &expr, int recursiondepth) {
|
---|
[1076] | 1394 | if (expr.empty()) return false;
|
---|
| 1395 |
|
---|
| 1396 | text_t expexpr;
|
---|
[8727] | 1397 | if (package.empty()) {
|
---|
| 1398 | expandstring (defaultpackage, expr, expexpr, recursiondepth);
|
---|
| 1399 | } else {
|
---|
| 1400 | expandstring (package, expr, expexpr, recursiondepth);
|
---|
| 1401 | }
|
---|
[1076] | 1402 | if (expexpr.empty() || expexpr == "0") return false;
|
---|
[10662] | 1403 | // allow \" as start of exp as well as ", cos this is what the GLI writes out
|
---|
| 1404 | if (expr[0] != '\"' && !(expr[0] == '\\' && expr[1] == '"')) {
|
---|
| 1405 | return true;
|
---|
| 1406 | }
|
---|
[1076] | 1407 | // don't use expexpr while separating quoted parts of
|
---|
| 1408 | // expression just in case expanded out macros contain
|
---|
| 1409 | // quotes
|
---|
| 1410 | text_t::const_iterator here = expr.begin();
|
---|
| 1411 | text_t::const_iterator end = expr.end();
|
---|
| 1412 |
|
---|
| 1413 | int quotecount = 0;
|
---|
| 1414 | text_t string1, expstring1;
|
---|
| 1415 | text_t string2, expstring2;
|
---|
| 1416 | text_t op;
|
---|
| 1417 | text_t combineop;
|
---|
| 1418 | bool result = false; // an empty string is false
|
---|
| 1419 | bool result2 = false;
|
---|
| 1420 |
|
---|
| 1421 | while (here != end) {
|
---|
| 1422 | // get a comparison
|
---|
| 1423 | quotecount = 0;
|
---|
| 1424 | string1.clear();
|
---|
| 1425 | string2.clear();
|
---|
| 1426 | op.clear();
|
---|
| 1427 | while (here != end) {
|
---|
[10662] | 1428 | if (*here == '\\' && *(here+1) =='"') {
|
---|
| 1429 | ++quotecount; // found an escaped quote
|
---|
| 1430 | ++here;
|
---|
| 1431 | }
|
---|
| 1432 | else if (*here == '"') ++quotecount;
|
---|
[1076] | 1433 | else if (quotecount == 1) string1.push_back(*here);
|
---|
| 1434 | else if ((quotecount == 2) && !is_unicode_space (*here))
|
---|
| 1435 | op.push_back(*here);
|
---|
| 1436 | else if (quotecount == 3) string2.push_back(*here);
|
---|
| 1437 | else if (quotecount >= 4) break;
|
---|
[8727] | 1438 | ++here;
|
---|
[1076] | 1439 | }
|
---|
| 1440 |
|
---|
| 1441 | expandstring (package, string1, expstring1, recursiondepth);
|
---|
| 1442 | expandstring (package, string2, expstring2, recursiondepth);
|
---|
| 1443 |
|
---|
| 1444 | // get next result
|
---|
| 1445 | result2 = true; // any badly formatted string will return true
|
---|
| 1446 | if (op == "eq") result2 = (expstring1 == expstring2);
|
---|
| 1447 | else if (op == "ne") result2 = (expstring1 != expstring2);
|
---|
| 1448 | else if (op == "gt") result2 = (expstring1 > expstring2);
|
---|
| 1449 | else if (op == "ge") result2 = (expstring1 >= expstring2);
|
---|
| 1450 | else if (op == "lt") result2 = (expstring1 < expstring2);
|
---|
| 1451 | else if (op == "le") result2 = (expstring1 <= expstring2);
|
---|
| 1452 | else if (op == "==") result2 = (expstring1.getint() == expstring2.getint());
|
---|
| 1453 | else if (op == "!=") result2 = (expstring1.getint() != expstring2.getint());
|
---|
| 1454 | else if (op == ">") result2 = (expstring1.getint() > expstring2.getint());
|
---|
| 1455 | else if (op == ">=") result2 = (expstring1.getint() >= expstring2.getint());
|
---|
| 1456 | else if (op == "<") result2 = (expstring1.getint() < expstring2.getint());
|
---|
| 1457 | else if (op == "<=") result2 = (expstring1.getint() <= expstring2.getint());
|
---|
[10141] | 1458 | else if (op == "sw") result2 = (starts_with(expstring1,expstring2));
|
---|
| 1459 | else if (op == "ew") result2 = (ends_with(expstring1,expstring2));
|
---|
[1076] | 1460 |
|
---|
| 1461 | // combine the results
|
---|
| 1462 | if (combineop == "&&") result = (result && result2);
|
---|
| 1463 | else if (combineop == "||") result = (result || result2);
|
---|
| 1464 | else result = result2;
|
---|
| 1465 |
|
---|
| 1466 | // get next combination operator
|
---|
| 1467 | combineop.clear();
|
---|
| 1468 | while (here != end && *here != '"') {
|
---|
| 1469 | if (!is_unicode_space(*here)) combineop.push_back(*here);
|
---|
[8727] | 1470 | ++here;
|
---|
[1076] | 1471 | }
|
---|
| 1472 | }
|
---|
| 1473 |
|
---|
| 1474 | return result;
|
---|
| 1475 | }
|
---|
| 1476 |
|
---|
| 1477 |
|
---|
[8727] | 1478 | mvalue* displayclass::macro_find (parammacros_t* macrotable,
|
---|
| 1479 | const text_t &packagename,
|
---|
[7386] | 1480 | const text_t ¯oname)
|
---|
| 1481 | {
|
---|
| 1482 | mvalue *macrovalue = NULL;
|
---|
| 1483 |
|
---|
| 1484 | // next look in the named parammacros for the named package
|
---|
| 1485 | if (macrotable->macro_find (packagename, macroname) != NULL)
|
---|
| 1486 | {
|
---|
| 1487 | paramspeclist::iterator paramhere, paramend;
|
---|
| 1488 |
|
---|
| 1489 | paramhere = orderparamlist->begin(); paramend = orderparamlist->end();
|
---|
| 1490 | while ((macrovalue == NULL) && (paramhere != paramend))
|
---|
| 1491 | {
|
---|
| 1492 | macrovalue = macrotable->parameter_find(packagename, macroname,
|
---|
| 1493 | (*paramhere).param);
|
---|
[8727] | 1494 | ++paramhere;
|
---|
[7386] | 1495 | }
|
---|
| 1496 | }
|
---|
| 1497 |
|
---|
| 1498 | return macrovalue;
|
---|
| 1499 | }
|
---|
| 1500 |
|
---|
| 1501 |
|
---|
[1076] | 1502 | // (recursively) expand out a macro
|
---|
| 1503 | // returns true if the macro was found
|
---|
| 1504 | // false if the macro was not found
|
---|
[8727] | 1505 | // macropackage should never be empty
|
---|
| 1506 | bool displayclass::macro (const text_t ¯oname,
|
---|
| 1507 | const text_t ¯opackage,
|
---|
| 1508 | const text_t ¯oparam,
|
---|
| 1509 | text_t &outputtext,
|
---|
| 1510 | int recursiondepth)
|
---|
[1076] | 1511 | {
|
---|
[8727] | 1512 | assert(!macropackage.empty()); //???
|
---|
| 1513 | //outconvertclass text_t2ascii;
|
---|
[1076] | 1514 | text_tlist splitmacroparam;
|
---|
| 1515 | text_t::const_iterator hereit, endit;
|
---|
| 1516 | text_t aparam;
|
---|
| 1517 | unsigned short c = '\0', quote = '\0';
|
---|
| 1518 |
|
---|
| 1519 | // cerr << "r: " << recursiondepth << "\n";
|
---|
| 1520 | // check for deep recursion
|
---|
| 1521 | if (recursiondepth >= MAXRECURSIONDEPTH)
|
---|
| 1522 | {
|
---|
| 1523 | if (logout != NULL)
|
---|
| 1524 | (*logout) << "Warning: deep recursion, limiting macro expansion\n";
|
---|
| 1525 | return false;
|
---|
| 1526 | }
|
---|
| 1527 |
|
---|
| 1528 | // check the macropackage
|
---|
[8727] | 1529 | //if (macropackage.empty()) macropackage = "Global";
|
---|
[1076] | 1530 |
|
---|
| 1531 | // get the parameters (but don't expand them)
|
---|
| 1532 | if (macroparam.size() > 0) {
|
---|
| 1533 | // set up for loop
|
---|
| 1534 | hereit = macroparam.begin();
|
---|
| 1535 | endit = macroparam.end();
|
---|
| 1536 | if (hereit != endit) c = (*hereit);
|
---|
[2965] | 1537 | int openbrackets=0; // keep track of bracket level eg _If_(1, _macro_(arg))
|
---|
| 1538 | // this allows commas inside brackets (as arguments)
|
---|
[1076] | 1539 | while (hereit != endit) {
|
---|
| 1540 | // get the next parameter
|
---|
| 1541 | aparam.clear();
|
---|
| 1542 | quote = '\0'; // not-quoted unless proven quoted
|
---|
| 1543 |
|
---|
| 1544 | // ignore initial whitespace
|
---|
| 1545 | while ((hereit!=endit)&&is_unicode_space(c)) c=my_ttnextchar(hereit,endit);
|
---|
| 1546 |
|
---|
| 1547 | // look for the end of the parameter
|
---|
| 1548 | while (hereit != endit) {
|
---|
| 1549 | if (c == '\\') {
|
---|
| 1550 | // found escape character, also get next character
|
---|
| 1551 | aparam.push_back(c);
|
---|
| 1552 | c = my_ttnextchar (hereit, endit);
|
---|
| 1553 | if (hereit != endit) aparam.push_back(c);
|
---|
| 1554 |
|
---|
| 1555 | } else if (quote=='\0' && (c=='\'' /*|| c=='"'*/)) {
|
---|
| 1556 | // found a quoted section
|
---|
| 1557 | quote = c;
|
---|
[2965] | 1558 | if (openbrackets>0) aparam.push_back(c);
|
---|
[1076] | 1559 |
|
---|
| 1560 | } else if (quote!='\0' && c==quote) {
|
---|
| 1561 | // found the end of a quote
|
---|
| 1562 | quote = '\0';
|
---|
[2965] | 1563 | if (openbrackets<0) aparam.push_back(c);
|
---|
[1076] | 1564 |
|
---|
[2965] | 1565 | } else if (quote=='\0' && (c==',' || c==')') && openbrackets==0) {
|
---|
[1076] | 1566 | // found the end of a parameter
|
---|
| 1567 | c = my_ttnextchar (hereit, endit);
|
---|
| 1568 | break;
|
---|
| 1569 |
|
---|
[2965] | 1570 | } else if (c=='(') {
|
---|
| 1571 | aparam.push_back(c);
|
---|
[8727] | 1572 | ++openbrackets;
|
---|
[2965] | 1573 | } else if (c==')') {
|
---|
[8727] | 1574 | --openbrackets;
|
---|
[2965] | 1575 | aparam.push_back(c);
|
---|
[1076] | 1576 | } else {
|
---|
| 1577 | // ordinary character
|
---|
| 1578 | aparam.push_back(c);
|
---|
| 1579 | }
|
---|
| 1580 |
|
---|
| 1581 | c = my_ttnextchar (hereit, endit);
|
---|
| 1582 | }
|
---|
| 1583 |
|
---|
[2965] | 1584 |
|
---|
[1076] | 1585 | // add this parameter to the list
|
---|
| 1586 | splitmacroparam.push_back(aparam);
|
---|
| 1587 | }
|
---|
| 1588 | }
|
---|
| 1589 |
|
---|
| 1590 | if (macroname == "If") {
|
---|
| 1591 | // get the condition, then clause and else clause
|
---|
| 1592 | text_tlist::iterator paramcond = splitmacroparam.begin();
|
---|
| 1593 | text_tlist::iterator paramend = splitmacroparam.end();
|
---|
| 1594 | text_tlist::iterator paramthen = paramend;
|
---|
| 1595 | text_tlist::iterator paramelse = paramend;
|
---|
| 1596 |
|
---|
| 1597 | if (paramcond != paramend) {
|
---|
| 1598 | paramthen = paramcond;
|
---|
[8727] | 1599 | ++paramthen;
|
---|
[1076] | 1600 | }
|
---|
| 1601 | if (paramthen != paramend) {
|
---|
| 1602 | paramelse = paramthen;
|
---|
[8727] | 1603 | ++paramelse;
|
---|
[1076] | 1604 | }
|
---|
| 1605 |
|
---|
| 1606 | // will always output something
|
---|
| 1607 | outputtext.clear();
|
---|
[2965] | 1608 |
|
---|
| 1609 |
|
---|
[1076] | 1610 | // expand out the first parameter
|
---|
| 1611 | if (paramcond != paramend) {
|
---|
[2965] | 1612 | /// text_t tmpoutput;
|
---|
| 1613 | /// expandstring (macropackage, *paramcond, tmpoutput, recursiondepth+1);
|
---|
| 1614 | /// lc (tmpoutput);
|
---|
[1076] | 1615 | // test the expanded string
|
---|
| 1616 | if (boolexpr (macropackage, *paramcond, recursiondepth+1)) {
|
---|
| 1617 | //(tmpoutput.size()) && (tmpoutput != "false") && (tmpoutput != "0")) {
|
---|
| 1618 | // true
|
---|
| 1619 | if (paramthen != paramend)
|
---|
| 1620 | expandstring (macropackage, *paramthen, outputtext, recursiondepth+1);
|
---|
| 1621 | } else {
|
---|
| 1622 | // false
|
---|
| 1623 | if (paramelse != paramend)
|
---|
| 1624 | expandstring (macropackage, *paramelse, outputtext, recursiondepth+1);
|
---|
| 1625 | }
|
---|
| 1626 | }
|
---|
| 1627 |
|
---|
| 1628 | return true;
|
---|
| 1629 | }
|
---|
| 1630 |
|
---|
| 1631 | // try and find this macro
|
---|
| 1632 |
|
---|
| 1633 | // this list might be replaced by something a little more
|
---|
| 1634 | // sophisticated in the future.
|
---|
| 1635 | text_tlist packagelist;
|
---|
| 1636 | packagelist.push_back (macropackage);
|
---|
| 1637 | packagelist.push_back ("Global");
|
---|
| 1638 |
|
---|
| 1639 | text_tlist::iterator packagehere = packagelist.begin();
|
---|
| 1640 | text_tlist::iterator packageend = packagelist.end();
|
---|
| 1641 | mvalue *macrovalue = NULL;
|
---|
[9950] | 1642 | while (packagehere != packageend)
|
---|
[1076] | 1643 | {
|
---|
| 1644 | // first look in the currentmacros
|
---|
| 1645 | macrovalue = currentmacros->macro_find(*packagehere, macroname);
|
---|
[9950] | 1646 | if (macrovalue != NULL)
|
---|
| 1647 | break;
|
---|
[1076] | 1648 |
|
---|
[9950] | 1649 | macrovalue = currentmacros->macro_find("Style", macroname);
|
---|
| 1650 | if (macrovalue != NULL)
|
---|
| 1651 | break;
|
---|
| 1652 |
|
---|
[7386] | 1653 | // look in the collection specific macros
|
---|
[9950] | 1654 | macrovalue = macro_find(collectionmacros,*packagehere,macroname);
|
---|
| 1655 | if (macrovalue != NULL)
|
---|
| 1656 | break;
|
---|
[7386] | 1657 |
|
---|
| 1658 | // and again in the collection specific package "Style"
|
---|
[9950] | 1659 | macrovalue = macro_find(collectionmacros,(char*)"Style",macroname);
|
---|
| 1660 | if (macrovalue != NULL)
|
---|
| 1661 | break;
|
---|
[7386] | 1662 |
|
---|
[1076] | 1663 | // look in the default macros
|
---|
[9950] | 1664 | macrovalue = macro_find(defaultmacros,*packagehere,macroname);
|
---|
| 1665 | if (macrovalue != NULL)
|
---|
| 1666 | break;
|
---|
[1076] | 1667 |
|
---|
| 1668 | // and again in the package "Style"
|
---|
[9950] | 1669 | macrovalue = macro_find(defaultmacros,(char*)"Style",macroname);
|
---|
| 1670 | if (macrovalue != NULL)
|
---|
| 1671 | break;
|
---|
| 1672 | ++packagehere;
|
---|
[1076] | 1673 | }
|
---|
| 1674 |
|
---|
| 1675 | if (macrovalue != NULL)
|
---|
| 1676 | {
|
---|
| 1677 | // we found a macro
|
---|
| 1678 |
|
---|
| 1679 | // replace all the option macros (_1_, _2_, ...) in the value of this macro
|
---|
| 1680 | // and decide if we need to expand the value of this macro
|
---|
| 1681 | bool needsexpansion = false;
|
---|
| 1682 | text_t tempmacrovalue;
|
---|
| 1683 | tempmacrovalue.clear();
|
---|
| 1684 | hereit = macrovalue->value.begin();
|
---|
| 1685 | endit = macrovalue->value.end();
|
---|
| 1686 | if (hereit != endit) c = (*hereit);
|
---|
| 1687 | while (hereit != endit)
|
---|
| 1688 | {
|
---|
| 1689 | if (c == '\\')
|
---|
| 1690 | {
|
---|
| 1691 | // found an escape character
|
---|
| 1692 | needsexpansion = true;
|
---|
| 1693 | tempmacrovalue.push_back(c);
|
---|
| 1694 | c = my_ttnextchar (hereit, endit);
|
---|
| 1695 | if (hereit != endit) tempmacrovalue.push_back(c);
|
---|
| 1696 | c = my_ttnextchar (hereit, endit);
|
---|
| 1697 | }
|
---|
| 1698 | else if (c == '_')
|
---|
| 1699 | {
|
---|
| 1700 | text_t::const_iterator savedhereit = hereit;
|
---|
| 1701 |
|
---|
| 1702 | // attempt to get a number
|
---|
| 1703 | int argnum = 0;
|
---|
| 1704 | unsigned short digc = my_ttnextchar (hereit, endit);
|
---|
| 1705 | while (digc >= '0' && digc <= '9') {
|
---|
| 1706 | argnum = argnum*10 + digc - '0';
|
---|
| 1707 | digc = my_ttnextchar (hereit, endit);
|
---|
| 1708 | }
|
---|
| 1709 | if (digc == '_' && argnum > 0) {
|
---|
| 1710 | // found an option macro, append the appropriate text
|
---|
| 1711 | text_tlist::iterator ttlisthere = splitmacroparam.begin();
|
---|
| 1712 | text_tlist::iterator ttlistend = splitmacroparam.end();
|
---|
| 1713 | while ((argnum > 1) && (ttlisthere != ttlistend)) {
|
---|
[8727] | 1714 | --argnum;
|
---|
| 1715 | ++ttlisthere;
|
---|
[1076] | 1716 | }
|
---|
| 1717 | if (ttlisthere != ttlistend) {
|
---|
| 1718 | tempmacrovalue.append(*ttlisthere);
|
---|
| 1719 | if (findchar((*ttlisthere).begin(), (*ttlisthere).end(), '_') != (*ttlisthere).end())
|
---|
| 1720 | needsexpansion = true;
|
---|
| 1721 | }
|
---|
| 1722 |
|
---|
| 1723 | c = my_ttnextchar (hereit, endit);
|
---|
| 1724 |
|
---|
| 1725 | } else {
|
---|
| 1726 | // wasn't a option macro
|
---|
| 1727 | needsexpansion = true;
|
---|
| 1728 | tempmacrovalue.push_back(c);
|
---|
| 1729 | hereit = savedhereit;
|
---|
| 1730 | c = my_ttnextchar (hereit, endit);
|
---|
| 1731 | }
|
---|
| 1732 | }
|
---|
| 1733 | else
|
---|
| 1734 | {
|
---|
| 1735 | tempmacrovalue.push_back(c);
|
---|
| 1736 | c = my_ttnextchar (hereit, endit);
|
---|
| 1737 | }
|
---|
| 1738 | }
|
---|
| 1739 |
|
---|
| 1740 | // recursively replace this macro (if we need to)
|
---|
| 1741 | if (needsexpansion) {
|
---|
| 1742 | expandstring (*packagehere, tempmacrovalue, outputtext, recursiondepth+1);
|
---|
| 1743 | } else {
|
---|
| 1744 | outputtext += tempmacrovalue;
|
---|
| 1745 | }
|
---|
| 1746 |
|
---|
| 1747 | return true;
|
---|
| 1748 | }
|
---|
| 1749 |
|
---|
[1860] | 1750 | // GRB: deal with remaining code properly as it faults
|
---|
| 1751 | return false;
|
---|
[8727] | 1752 | outconvertclass text_t2ascii;
|
---|
[1076] | 1753 | if (logout != NULL) {
|
---|
| 1754 | (*logout) << text_t2ascii << "Warning: _" <<
|
---|
| 1755 | macropackage << ":" << macroname << "_ not found\n";
|
---|
| 1756 | }
|
---|
| 1757 |
|
---|
| 1758 | return false; // didn't find the macro
|
---|
| 1759 | }
|
---|
| 1760 |
|
---|
| 1761 |
|
---|
| 1762 | void displayclass::printdefaultmacros ()
|
---|
| 1763 | {
|
---|
| 1764 | defpackagemap::const_iterator packagemapit;
|
---|
| 1765 | defmacromap::const_iterator macromapit;
|
---|
| 1766 | defparammap::const_iterator parammapit;
|
---|
| 1767 | const mvalue *mvalueptr;
|
---|
| 1768 | outconvertclass text_t2ascii;
|
---|
| 1769 |
|
---|
| 1770 | text_t packagename, macroname, macroparam;
|
---|
| 1771 |
|
---|
| 1772 | for (packagemapit = defaultmacros->package_begin();
|
---|
| 1773 | packagemapit != defaultmacros->package_end();
|
---|
[8727] | 1774 | ++packagemapit)
|
---|
[1076] | 1775 | {
|
---|
| 1776 | packagename = (*packagemapit).first;
|
---|
| 1777 | // cerr << "***package : \"" << packagename << "\"\n";
|
---|
| 1778 |
|
---|
| 1779 | for (macromapit = (*packagemapit).second.begin();
|
---|
| 1780 | macromapit != (*packagemapit).second.end();
|
---|
[8727] | 1781 | ++macromapit)
|
---|
[1076] | 1782 | {
|
---|
| 1783 | macroname = (*macromapit).first;
|
---|
| 1784 | // cerr << "***macroname : \"" << macroname << "\"\n";
|
---|
| 1785 |
|
---|
| 1786 | for (parammapit = (*macromapit).second.begin();
|
---|
| 1787 | parammapit != (*macromapit).second.end();
|
---|
[8727] | 1788 | ++parammapit)
|
---|
[1076] | 1789 | {
|
---|
| 1790 | macroparam = (*parammapit).first;
|
---|
| 1791 | mvalueptr = &((*parammapit).second);
|
---|
| 1792 | cerr << text_t2ascii << "package : \"" << packagename << "\"\n";
|
---|
| 1793 | cerr << text_t2ascii << "macroname : \"" << macroname << "\"\n";
|
---|
| 1794 | cerr << text_t2ascii << "parameters: [" << macroparam << "]\n";
|
---|
| 1795 | cerr << text_t2ascii << "filename : \"" << mvalueptr->filename << "\"\n";
|
---|
| 1796 | cerr << text_t2ascii << "value : {" << mvalueptr->value << "}\n\n";
|
---|
| 1797 | }
|
---|
| 1798 | }
|
---|
| 1799 | }
|
---|
| 1800 | }
|
---|
| 1801 |
|
---|
| 1802 | void displayclass::printallparams ()
|
---|
| 1803 | {
|
---|
| 1804 | text_tset::iterator text_tsetit;
|
---|
| 1805 | outconvertclass text_t2ascii;
|
---|
| 1806 |
|
---|
| 1807 | cerr << text_t2ascii << "** allparams\n";
|
---|
| 1808 | for (text_tsetit=allparams.begin();
|
---|
| 1809 | text_tsetit!=allparams.end();
|
---|
[8727] | 1810 | ++text_tsetit) {
|
---|
[1076] | 1811 | cerr << text_t2ascii << (*text_tsetit) << "\n";
|
---|
| 1812 | }
|
---|
| 1813 | cerr << text_t2ascii << "\n";
|
---|
| 1814 | }
|
---|
| 1815 |
|
---|
| 1816 |
|
---|
| 1817 |
|
---|
| 1818 | /////////////////////////////////////
|
---|
| 1819 | // stuff to do tricky output
|
---|
| 1820 | /////////////////////////////////////
|
---|
| 1821 |
|
---|
| 1822 | displayclass &operator<< (outconvertclass &theoutc, displayclass &display)
|
---|
| 1823 | {
|
---|
| 1824 | display.setconvertclass (&theoutc);
|
---|
| 1825 | return display;
|
---|
| 1826 | }
|
---|
| 1827 |
|
---|
| 1828 | displayclass &operator<< (displayclass &display, const text_t &t)
|
---|
| 1829 | {
|
---|
| 1830 | outconvertclass *theoutc = display.getconvertclass();
|
---|
| 1831 |
|
---|
| 1832 | if (theoutc == NULL) return display;
|
---|
| 1833 |
|
---|
| 1834 | text_t output;
|
---|
| 1835 | display.expandstring (t, output);
|
---|
| 1836 | (*theoutc) << output;
|
---|
| 1837 |
|
---|
| 1838 | return display;
|
---|
| 1839 | }
|
---|