1 | /**********************************************************************
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2 | *
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3 | * htmlgen.cpp --
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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 "htmlgen.h"
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27 | #include "unitool.h"
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28 |
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29 | #if defined(GSDL_USE_OBJECTSPACE)
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30 | # include <ospace\std\map>
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31 | #elif defined(GSDL_USE_STL_H)
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32 | # include <map.h>
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33 | #else
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34 | # include <map>
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35 | #endif
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36 |
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37 |
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38 |
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39 | // highlighttext highlights query terms in text string and
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40 | // outputs the resulting text string
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41 | void highlighttext (text_tarray &termvars, displayclass &disp, text_t &text,
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42 | outconvertclass &outconvert, ostream &textout, ostream &/*logout*/) {
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43 | map<text_t, int, lttext_t> terms;
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44 | map<text_t, int, lttext_t>::const_iterator it;
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45 | for (unsigned int i = 0; i < termvars.size(); i++) {
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46 | terms[termvars[i]] = 1;
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47 | }
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48 |
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49 | // get the text to start and end a hightlight
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50 | text_t starthighlight = "<b><u>";
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51 | text_t endhighlight = "</u></b>";
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52 | if (disp.isdefaultmacro("Global", "starthighlight"))
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53 | disp.expandstring("Global", "_starthighlight_", starthighlight);
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54 | if (disp.isdefaultmacro("Global", "endhighlight"))
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55 | disp.expandstring("Global", "_endhighlight_", endhighlight);
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56 |
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57 |
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58 | text_t::iterator here = text.begin();
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59 | text_t::iterator end = text.end();
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60 | text_t word, buffer;
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61 | while (here != end) {
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62 | if (is_unicode_letdig(*here)) {
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63 | // not word boundary
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64 | word.push_back(*here);
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65 | here++;
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66 |
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67 | } else {
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68 | // found word boundary
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69 | // add last word if there was one
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70 | if (!word.empty()) {
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71 | it = terms.find(word);
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72 | if (it != terms.end()) {
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73 | word = starthighlight + word + endhighlight;
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74 | }
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75 | buffer += word;
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76 | word.clear();
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77 | }
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78 |
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79 | if (*here == '<') {
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80 | // skip over rest of html tag
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81 | while ((here != end) && (*here != '>')) {
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82 | buffer.push_back(*here);
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83 | here++;
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84 | }
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85 | }
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86 |
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87 | buffer.push_back(*here);
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88 | here++;
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89 |
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90 | if (buffer.size() > 1024) {
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91 | textout << outconvert << buffer;
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92 | buffer.clear();
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93 | }
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94 | }
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95 | }
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96 | textout << outconvert << buffer;
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97 | }
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