1 | #!/usr/bin/perl
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2 | # $Id: fixmswrd.pl 6300 2005-12-28 19:56:24Z giles $
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3 |
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4 | # (C) 1997 Anthony Shipman
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5 | #
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6 | # This software is provided 'as-is', without any express or implied
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7 | # warranty. In no event will the authors be held liable for any damages
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8 | # arising from the use of this software.
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9 | #
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10 | # Permission is granted to anyone to use this software for any purpose,
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11 | # including commercial applications, and to alter it and redistribute it
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12 | # freely, subject to the following restrictions:
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13 | #
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14 | # 1. The origin of this software must not be misrepresented; you must not
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15 | # claim that you wrote the original software. If you use this software
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16 | # in a product, an acknowledgment in the product documentation would be
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17 | # appreciated but is not required.
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18 | # 2. Altered source versions must be plainly marked as such, and must not be
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19 | # misrepresented as being the original software.
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20 | # 3. This notice may not be removed or altered from any source distribution.
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21 | #
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22 | # Anthony Shipman [email protected]
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23 |
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24 | # This program patches the postscript generated by MS Word printer drivers
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25 | # so that they work with ghostview 1.5. The problem is that the document
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26 | # structuring conventions are not followed by Word. The pages are supposed
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27 | # to be independent but they depend on a dictionary being opened outside
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28 | # of the pages. The erroneous structure is
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29 | #
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30 | # %%EndSetup
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31 | # NTPSOct95 begin
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32 | # %%Page: 1 1
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33 | # <text>
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34 | # showpage
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35 | # %%Page: 2 2
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36 | # <text>
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37 | # showpage
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38 | # ......
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39 | # %%Trailer
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40 | # ...
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41 | # end
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42 | # %%EOF
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43 | #
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44 | # This only works if the all of the structure around the pages is preserved.
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45 | # The opening of NTPSOct95 happens outside of any structured section so
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46 | # it is never seen by ghostview. We change the structure to
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47 | #
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48 | # %%EndSetup
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49 | # %%Page: 1 1
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50 | # NTPSOct95 begin
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51 | # <text>
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52 | # showpage
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53 | # end
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54 | # %%Page: 2 2
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55 | # NTPSOct95 begin
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56 | # <text>
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57 | # showpage
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58 | # end
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59 | # ......
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60 | # %%Trailer
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61 | # ...
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62 | # %%EOF
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63 | #
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64 | # That is the dictionary opening is repeated inside each page.
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65 | #
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66 | # We add a comment to the document to mark that it has been converted.
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67 | # This has the form
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68 | # %LOCALGhostviewPatched
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69 | #
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70 | # Usage:
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71 | # fixmswrd [-v] [file [output-file]]
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72 |
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73 | require 'getopts.pl';
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74 |
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75 | #=================================================================
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76 |
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77 | $program = "fixmswrd";
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78 |
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79 | sub usage {
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80 | die "Usage: $program [-v] [file [output-file]]\n";
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81 | }
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82 |
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83 | #=================================================================
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84 |
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85 | &Getopts("v") || &usage;
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86 |
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87 | $verbose = $opt_v;
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88 |
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89 |
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90 | $infile = shift(@ARGV);
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91 | if ($infile)
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92 | {
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93 | open(INFILE, $infile) || die "$program: Cannot read from $infile\n";
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94 | $handle = "INFILE";
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95 | }
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96 | else
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97 | {
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98 | $handle = "STDIN";
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99 | }
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100 |
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101 |
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102 | $outfile = shift(@ARGV);
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103 | if ($outfile)
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104 | {
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105 | open(OUTFILE, ">$outfile") || die "$program: Cannot write to $outfile\n";
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106 | select(OUTFILE);
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107 | }
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108 |
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109 | # This reads the header comments and detects the presence of the marker.
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110 | $have_marker = 0;
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111 |
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112 | undef $dict_name;
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113 | undef $dict_line;
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114 |
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115 | &read_comments;
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116 | &put_comments;
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117 |
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118 | if ($have_marker)
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119 | {
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120 | $verbose && print STDERR "$program: Warning - already converted\n";
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121 |
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122 | while(<$handle>) # pass the file through unchanged.
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123 | {
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124 | print;
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125 | }
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126 | }
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127 | else
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128 | {
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129 | $seen_trailer = 0;
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130 |
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131 | while(<$handle>) # massage the file
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132 | {
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133 | if ($dict_line)
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134 | {
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135 | next if (/$dict_line/o); # drop the old begin line
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136 | $seen_trailer = 1 if (/^%%Trailer/);
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137 | next if ($seen_trailer and /^end/); # drop the old end line
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138 | }
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139 |
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140 | print;
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141 |
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142 | if (/^%%Page:/)
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143 | {
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144 | print "$dict_name begin\n"; # add at the start of the page
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145 | }
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146 | elsif (/^showpage/)
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147 | {
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148 | print "end\n"; # add at the end of the page
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149 | }
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150 | elsif (/^%%BeginResource: procset (\S+)/)
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151 | {
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152 | $dict_name = $1;
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153 | $dict_line = "^$dict_name begin";
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154 | }
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155 | elsif (/^%%BeginProcSet: (\S+)/) # for older document versions
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156 | {
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157 | $dict_name = $1;
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158 | $dict_line = "^$dict_name begin";
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159 | }
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160 | elsif (/^%%EndProlog:/)
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161 | {
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162 | unless ($dict_line)
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163 | {
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164 | $verbose &&
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165 | print STDERR "$program: Warning - unrecognised document structure\n";
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166 | }
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167 | }
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168 | }
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169 | }
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170 |
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171 | exit 0;
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172 |
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173 | #=================================================================
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174 |
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175 |
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176 | # This reads all of the header comments into an array which we can write
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177 | # out again later. In addition we detect the presence of the marker comment.
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178 |
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179 | sub read_comments
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180 | {
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181 | @headers = ();
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182 |
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183 | while (<$handle>)
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184 | { # without chopping
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185 | push(@headers, $_);
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186 | if (/^%LOCALGhostviewPatched/)
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187 | {
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188 | $have_marker = 1;
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189 | }
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190 | last if /^%%EndComments/;
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191 | }
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192 | }
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193 |
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194 |
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195 |
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196 | sub put_comments
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197 | {
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198 | foreach $h (@headers)
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199 | {
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200 | if (!$have_marker and ($h =~ /^%%EndComments/))
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201 | {
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202 | print "%LOCALGhostviewPatched\n";
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203 | }
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204 | print $h; # contains the newline
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205 | }
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206 | }
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