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1 #!/bin/perl |
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2 # |
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3 #Used to prepare the book "tommath.src" for LaTeX by pre-processing it into a .tex file |
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4 # |
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5 #Essentially you write the "tommath.src" as normal LaTex except where you want code snippets you put |
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6 # |
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7 #EXAM,file |
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8 # |
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9 #This preprocessor will then open "file" and insert it as a verbatim copy. |
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10 # |
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11 #Tom St Denis |
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12 |
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13 #get graphics type |
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14 if (shift =~ /PDF/) { |
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15 $graph = ""; |
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16 } else { |
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17 $graph = ".ps"; |
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18 } |
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19 |
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20 open(IN,"<tommath.src") or die "Can't open source file"; |
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21 open(OUT,">tommath.tex") or die "Can't open destination file"; |
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22 |
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23 print "Scanning for sections\n"; |
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24 $chapter = $section = $subsection = 0; |
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25 $x = 0; |
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26 while (<IN>) { |
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27 print "."; |
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28 if (!(++$x % 80)) { print "\n"; } |
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29 #update the headings |
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30 if (~($_ =~ /\*/)) { |
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31 if ($_ =~ /\\chapter{.+}/) { |
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32 ++$chapter; |
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33 $section = $subsection = 0; |
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34 } elsif ($_ =~ /\\section{.+}/) { |
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35 ++$section; |
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36 $subsection = 0; |
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37 } elsif ($_ =~ /\\subsection{.+}/) { |
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38 ++$subsection; |
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39 } |
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40 } |
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41 |
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42 if ($_ =~ m/MARK/) { |
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43 @m = split(",",$_); |
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44 chomp(@m[1]); |
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45 $index1{@m[1]} = $chapter; |
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46 $index2{@m[1]} = $section; |
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47 $index3{@m[1]} = $subsection; |
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48 } |
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49 } |
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50 close(IN); |
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51 |
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52 open(IN,"<tommath.src") or die "Can't open source file"; |
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53 $readline = $wroteline = 0; |
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54 $srcline = 0; |
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55 |
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56 while (<IN>) { |
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57 ++$readline; |
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58 ++$srcline; |
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59 |
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60 if ($_ =~ m/MARK/) { |
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61 } elsif ($_ =~ m/EXAM/ || $_ =~ m/LIST/) { |
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62 if ($_ =~ m/EXAM/) { |
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63 $skipheader = 1; |
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64 } else { |
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65 $skipheader = 0; |
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66 } |
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67 |
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68 # EXAM,file |
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69 chomp($_); |
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70 @m = split(",",$_); |
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71 open(SRC,"<$m[1]") or die "Error:$srcline:Can't open source file $m[1]"; |
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72 |
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73 print "$srcline:Inserting $m[1]:"; |
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74 |
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75 $line = 0; |
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76 $tmp = $m[1]; |
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77 $tmp =~ s/_/"\\_"/ge; |
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78 print OUT "\\vspace{+3mm}\\begin{small}\n\\hspace{-5.1mm}{\\bf File}: $tmp\n\\vspace{-3mm}\n\\begin{alltt}\n"; |
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79 $wroteline += 5; |
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80 |
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81 if ($skipheader == 1) { |
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82 # scan till next end of comment, e.g. skip license |
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83 while (<SRC>) { |
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84 $text[$line++] = $_; |
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85 last if ($_ =~ /tommath\.h/); |
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86 } |
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87 } |
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88 |
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89 $inline = 0; |
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90 while (<SRC>) { |
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91 $text[$line++] = $_; |
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92 ++$inline; |
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93 chomp($_); |
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94 $_ =~ s/\t/" "/ge; |
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95 $_ =~ s/{/"^{"/ge; |
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96 $_ =~ s/}/"^}"/ge; |
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97 $_ =~ s/\\/'\symbol{92}'/ge; |
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98 $_ =~ s/\^/"\\"/ge; |
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99 |
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100 printf OUT ("%03d ", $line); |
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101 for ($x = 0; $x < length($_); $x++) { |
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102 print OUT chr(vec($_, $x, 8)); |
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103 if ($x == 75) { |
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104 print OUT "\n "; |
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105 ++$wroteline; |
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106 } |
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107 } |
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108 print OUT "\n"; |
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109 ++$wroteline; |
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110 } |
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111 $totlines = $line; |
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112 print OUT "\\end{alltt}\n\\end{small}\n"; |
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113 close(SRC); |
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114 print "$inline lines\n"; |
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115 $wroteline += 2; |
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116 } elsif ($_ =~ m/@\d+,.+@/) { |
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117 # line contains [number,text] |
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118 # e.g. @14,for (ix = 0)@ |
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119 $txt = $_; |
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120 while ($txt =~ m/@\d+,.+@/) { |
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121 @m = split("@",$txt); # splits into text, one, two |
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122 @parms = split(",",$m[1]); # splits one,two into two elements |
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123 |
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124 # now search from $parms[0] down for $parms[1] |
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125 $found1 = 0; |
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126 $found2 = 0; |
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127 for ($i = $parms[0]; $i < $totlines && $found1 == 0; $i++) { |
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128 if ($text[$i] =~ m/\Q$parms[1]\E/) { |
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129 $foundline1 = $i + 1; |
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130 $found1 = 1; |
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131 } |
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132 } |
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133 |
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134 # now search backwards |
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135 for ($i = $parms[0] - 1; $i >= 0 && $found2 == 0; $i--) { |
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136 if ($text[$i] =~ m/\Q$parms[1]\E/) { |
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137 $foundline2 = $i + 1; |
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138 $found2 = 1; |
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139 } |
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140 } |
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141 |
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142 # now use the closest match or the first if tied |
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143 if ($found1 == 1 && $found2 == 0) { |
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144 $found = 1; |
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145 $foundline = $foundline1; |
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146 } elsif ($found1 == 0 && $found2 == 1) { |
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147 $found = 1; |
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148 $foundline = $foundline2; |
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149 } elsif ($found1 == 1 && $found2 == 1) { |
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150 $found = 1; |
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151 if (($foundline1 - $parms[0]) <= ($parms[0] - $foundline2)) { |
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152 $foundline = $foundline1; |
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153 } else { |
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154 $foundline = $foundline2; |
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155 } |
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156 } else { |
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157 $found = 0; |
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158 } |
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159 |
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160 # if found replace |
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161 if ($found == 1) { |
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162 $delta = $parms[0] - $foundline; |
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163 print "Found replacement tag for \"$parms[1]\" on line $srcline which refers to line $foundline (delta $delta)\n"; |
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164 $_ =~ s/@\Q$m[1]\E@/$foundline/; |
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165 } else { |
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166 print "ERROR: The tag \"$parms[1]\" on line $srcline was not found in the most recently parsed source!\n"; |
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167 } |
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168 |
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169 # remake the rest of the line |
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170 $cnt = @m; |
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171 $txt = ""; |
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172 for ($i = 2; $i < $cnt; $i++) { |
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173 $txt = $txt . $m[$i] . "@"; |
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174 } |
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175 } |
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176 print OUT $_; |
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177 ++$wroteline; |
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178 } elsif ($_ =~ /~.+~/) { |
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179 # line contains a ~text~ pair used to refer to indexing :-) |
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180 $txt = $_; |
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181 while ($txt =~ /~.+~/) { |
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182 @m = split("~", $txt); |
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183 |
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184 # word is the second position |
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185 $word = @m[1]; |
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186 $a = $index1{$word}; |
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187 $b = $index2{$word}; |
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188 $c = $index3{$word}; |
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189 |
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190 # if chapter (a) is zero it wasn't found |
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191 if ($a == 0) { |
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192 print "ERROR: the tag \"$word\" on line $srcline was not found previously marked.\n"; |
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193 } else { |
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194 # format the tag as x, x.y or x.y.z depending on the values |
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195 $str = $a; |
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196 $str = $str . ".$b" if ($b != 0); |
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197 $str = $str . ".$c" if ($c != 0); |
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198 |
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199 if ($b == 0 && $c == 0) { |
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200 # its a chapter |
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201 if ($a <= 10) { |
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202 if ($a == 1) { |
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203 $str = "chapter one"; |
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204 } elsif ($a == 2) { |
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205 $str = "chapter two"; |
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206 } elsif ($a == 3) { |
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207 $str = "chapter three"; |
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208 } elsif ($a == 4) { |
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209 $str = "chapter four"; |
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210 } elsif ($a == 5) { |
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211 $str = "chapter five"; |
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212 } elsif ($a == 6) { |
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213 $str = "chapter six"; |
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214 } elsif ($a == 7) { |
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215 $str = "chapter seven"; |
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216 } elsif ($a == 8) { |
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217 $str = "chapter eight"; |
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218 } elsif ($a == 9) { |
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219 $str = "chapter nine"; |
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220 } elsif ($a == 2) { |
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221 $str = "chapter ten"; |
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222 } |
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223 } else { |
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224 $str = "chapter " . $str; |
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225 } |
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226 } else { |
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227 $str = "section " . $str if ($b != 0 && $c == 0); |
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228 $str = "sub-section " . $str if ($b != 0 && $c != 0); |
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229 } |
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230 |
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231 #substitute |
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232 $_ =~ s/~\Q$word\E~/$str/; |
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233 |
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234 print "Found replacement tag for marker \"$word\" on line $srcline which refers to $str\n"; |
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235 } |
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236 |
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237 # remake rest of the line |
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238 $cnt = @m; |
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239 $txt = ""; |
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240 for ($i = 2; $i < $cnt; $i++) { |
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241 $txt = $txt . $m[$i] . "~"; |
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242 } |
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243 } |
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244 print OUT $_; |
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245 ++$wroteline; |
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246 } elsif ($_ =~ m/FIGU/) { |
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247 # FIGU,file,caption |
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248 chomp($_); |
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249 @m = split(",", $_); |
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250 print OUT "\\begin{center}\n\\begin{figure}[here]\n\\includegraphics{pics/$m[1]$graph}\n"; |
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251 print OUT "\\caption{$m[2]}\n\\label{pic:$m[1]}\n\\end{figure}\n\\end{center}\n"; |
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252 $wroteline += 4; |
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253 } else { |
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254 print OUT $_; |
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255 ++$wroteline; |
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256 } |
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257 } |
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258 print "Read $readline lines, wrote $wroteline lines\n"; |
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259 |
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260 close (OUT); |
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261 close (IN); |
