@@ -1,73 +1,75 | |||||
1 | # Redmine - project management software |
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1 | # Redmine - project management software | |
2 | # Copyright (C) 2006-2013 Jean-Philippe Lang |
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2 | # Copyright (C) 2006-2013 Jean-Philippe Lang | |
3 | # |
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3 | # | |
4 | # This program is free software; you can redistribute it and/or |
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4 | # This program is free software; you can redistribute it and/or | |
5 | # modify it under the terms of the GNU General Public License |
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5 | # modify it under the terms of the GNU General Public License | |
6 | # as published by the Free Software Foundation; either version 2 |
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6 | # as published by the Free Software Foundation; either version 2 | |
7 | # of the License, or (at your option) any later version. |
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7 | # of the License, or (at your option) any later version. | |
8 | # |
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8 | # | |
9 | # This program is distributed in the hope that it will be useful, |
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9 | # This program is distributed in the hope that it will be useful, | |
10 | # but WITHOUT ANY WARRANTY; without even the implied warranty of |
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10 | # but WITHOUT ANY WARRANTY; without even the implied warranty of | |
11 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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11 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
12 | # GNU General Public License for more details. |
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12 | # GNU General Public License for more details. | |
13 | # |
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13 | # | |
14 | # You should have received a copy of the GNU General Public License |
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14 | # You should have received a copy of the GNU General Public License | |
15 | # along with this program; if not, write to the Free Software |
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15 | # along with this program; if not, write to the Free Software | |
16 | # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. |
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16 | # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. | |
17 |
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17 | |||
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18 | require 'diff' | |||
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19 | ||||
18 | module Redmine |
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20 | module Redmine | |
19 | module Helpers |
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21 | module Helpers | |
20 | class Diff |
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22 | class Diff | |
21 | include ERB::Util |
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23 | include ERB::Util | |
22 | include ActionView::Helpers::TagHelper |
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24 | include ActionView::Helpers::TagHelper | |
23 | include ActionView::Helpers::TextHelper |
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25 | include ActionView::Helpers::TextHelper | |
24 | attr_reader :diff, :words |
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26 | attr_reader :diff, :words | |
25 |
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27 | |||
26 | def initialize(content_to, content_from) |
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28 | def initialize(content_to, content_from) | |
27 | @words = content_to.to_s.split(/(\s+)/) |
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29 | @words = content_to.to_s.split(/(\s+)/) | |
28 | @words = @words.select {|word| word != ' '} |
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30 | @words = @words.select {|word| word != ' '} | |
29 | words_from = content_from.to_s.split(/(\s+)/) |
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31 | words_from = content_from.to_s.split(/(\s+)/) | |
30 | words_from = words_from.select {|word| word != ' '} |
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32 | words_from = words_from.select {|word| word != ' '} | |
31 | @diff = words_from.diff @words |
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33 | @diff = words_from.diff @words | |
32 | end |
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34 | end | |
33 |
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35 | |||
34 | def to_html |
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36 | def to_html | |
35 | words = self.words.collect{|word| h(word)} |
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37 | words = self.words.collect{|word| h(word)} | |
36 | words_add = 0 |
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38 | words_add = 0 | |
37 | words_del = 0 |
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39 | words_del = 0 | |
38 | dels = 0 |
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40 | dels = 0 | |
39 | del_off = 0 |
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41 | del_off = 0 | |
40 | diff.diffs.each do |diff| |
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42 | diff.diffs.each do |diff| | |
41 | add_at = nil |
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43 | add_at = nil | |
42 | add_to = nil |
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44 | add_to = nil | |
43 | del_at = nil |
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45 | del_at = nil | |
44 | deleted = "" |
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46 | deleted = "" | |
45 | diff.each do |change| |
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47 | diff.each do |change| | |
46 | pos = change[1] |
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48 | pos = change[1] | |
47 | if change[0] == "+" |
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49 | if change[0] == "+" | |
48 | add_at = pos + dels unless add_at |
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50 | add_at = pos + dels unless add_at | |
49 | add_to = pos + dels |
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51 | add_to = pos + dels | |
50 | words_add += 1 |
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52 | words_add += 1 | |
51 | else |
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53 | else | |
52 | del_at = pos unless del_at |
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54 | del_at = pos unless del_at | |
53 | deleted << ' ' unless deleted.empty? |
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55 | deleted << ' ' unless deleted.empty? | |
54 | deleted << h(change[2]) |
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56 | deleted << h(change[2]) | |
55 | words_del += 1 |
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57 | words_del += 1 | |
56 | end |
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58 | end | |
57 | end |
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59 | end | |
58 | if add_at |
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60 | if add_at | |
59 | words[add_at] = '<span class="diff_in">'.html_safe + words[add_at] |
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61 | words[add_at] = '<span class="diff_in">'.html_safe + words[add_at] | |
60 | words[add_to] = words[add_to] + '</span>'.html_safe |
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62 | words[add_to] = words[add_to] + '</span>'.html_safe | |
61 | end |
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63 | end | |
62 | if del_at |
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64 | if del_at | |
63 | words.insert del_at - del_off + dels + words_add, '<span class="diff_out">'.html_safe + deleted + '</span>'.html_safe |
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65 | words.insert del_at - del_off + dels + words_add, '<span class="diff_out">'.html_safe + deleted + '</span>'.html_safe | |
64 | dels += 1 |
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66 | dels += 1 | |
65 | del_off += words_del |
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67 | del_off += words_del | |
66 | words_del = 0 |
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68 | words_del = 0 | |
67 | end |
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69 | end | |
68 | end |
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70 | end | |
69 | words.join(' ').html_safe |
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71 | words.join(' ').html_safe | |
70 | end |
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72 | end | |
71 | end |
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73 | end | |
72 | end |
|
74 | end | |
73 | end |
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75 | end |
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