tex.c

   1 #include <stdlib.h>
   2 #include "ctxt.h"
   3
   4 static void latex_doc_beg(struct doc *doc)
   5 {
   6         doc_write(doc, "\\begin{document}\n");
   7 }
   8
   9 static void latex_doc_end(struct doc *doc)
  10 {
  11         doc_write(doc, "\\end{document}\n");
  12 }
  13
  14 static void latex_head_beg(struct doc *doc, int level)
  15 {
  16         switch (level) {
  17         case 0:
  18                 doc_write(doc, "\\section*{");
  19                 break;
  20         case 1:
  21                 doc_write(doc, "\\subsection*{");
  22                 break;
  23         default:
  24                 doc_write(doc, "\\subsection*{");
  25         }
  26 }
  27
  28 static void latex_head_end(struct doc *doc, int level)
  29 {
  30         doc_write(doc, "}\n");
  31 }
  32
  33 static void latex_par_beg(struct doc *doc)
  34 {
  35 }
  36
  37 static void latex_par_end(struct doc *doc)
  38 {
  39 }
  40
  41 static void latex_put(struct doc *doc, char *s)
  42 {
  43         doc_write(doc, s);
  44 }
  45
  46 static void latex_list_beg(struct doc *doc)
  47 {
  48         doc_write(doc, "\\begin{itemize}\n");
  49 }
  50
  51 static void latex_list_end(struct doc *doc)
  52 {
  53         doc_write(doc, "\\end{itemize}\n");
  54 }
  55
  56 static void latex_item_beg(struct doc *doc)
  57 {
  58         doc_write(doc, "\\item ");
  59 }
  60
  61 static void latex_item_end(struct doc *doc)
  62 {
  63         doc_write(doc, "");
  64 }
  65
  66 static void latex_pre_beg(struct doc *doc)
  67 {
  68         doc_write(doc, "\\begin{verbatim}\n");
  69 }
  70
  71 static void latex_pre_end(struct doc *doc)
  72 {
  73         doc_write(doc, "\\end{verbatim}\n");
  74 }
  75
  76 static void latex_formula_beg(struct doc *doc)
  77 {
  78         doc_write(doc, "\\[ ");
  79 }
  80
  81 static void latex_formula_end(struct doc *doc)
  82 {
  83         doc_write(doc, " \\]\n");
  84 }
  85
  86 static void latex_put_emph(struct doc *doc, char *s)
  87 {
  88         doc_write(doc, "\\emph{");
  89         doc_write(doc, s);
  90         doc_write(doc, "}");
  91 }
  92
  93 static void latex_put_raw(struct doc *doc, char *s)
  94 {
  95         doc_write(doc, s);
  96 }
  97
  98 static void latex_put_ref(struct doc *doc, char *s)
  99 {
 100         doc_write(doc, "\\cite{");
 101         doc_write(doc, s);
 102         doc_write(doc, "}");
 103 }
 104
 105 static void latex_put_url(struct doc *doc, char *url, char *desc)
 106 {
 107         doc_write(doc, url);
 108         if (desc && *desc) {
 109                 doc_write(doc, " (");
 110                 doc_write(doc, desc);
 111                 doc_write(doc, ")");
 112         }
 113 }
 114
 115 static void latex_table_beg(struct doc *doc, int columns)
 116 {
 117         int i;
 118         doc_write(doc, "\\begin{tabular}{|");
 119         for (i = 0; i < columns; i++)
 120                 doc_write(doc, "l|");
 121         doc_write(doc, "}\n");
 122 }
 123
 124 static void latex_table_end(struct doc *doc)
 125 {
 126         doc_write(doc, "\\hline\n");
 127         doc_write(doc, "\\end{tabular}\n");
 128 }
 129
 130 /* a hack to identify the first entry in each row */
 131 static int entcol;
 132
 133 static void latex_row_beg(struct doc *doc)
 134 {
 135         entcol = 0;
 136         doc_write(doc, "\\hline\n");
 137 }
 138
 139 static void latex_row_end(struct doc *doc)
 140 {
 141         doc_write(doc, "\t\\\\\n");
 142 }
 143
 144 static void latex_entry_beg(struct doc *doc)
 145 {
 146         if (entcol++)
 147                 doc_write(doc, "\t& ");
 148 }
 149
 150 static void latex_entry_end(struct doc *doc)
 151 {
 152 }
 153
 154 struct fmt_ops latex_ops = {
 155         .doc_beg        = latex_doc_beg,
 156         .doc_end        = latex_doc_end,
 157         .head_beg       = latex_head_beg,
 158         .head_end       = latex_head_end,
 159         .par_beg        = latex_par_beg,
 160         .par_end        = latex_par_end,
 161         .list_beg       = latex_list_beg,
 162         .list_end       = latex_list_end,
 163         .item_beg       = latex_item_beg,
 164         .item_end       = latex_item_end,
 165         .pre_beg        = latex_pre_beg,
 166         .pre_end        = latex_pre_end,
 167         .formula_beg    = latex_formula_beg,
 168         .formula_end    = latex_formula_end,
 169         .table_beg      = latex_table_beg,
 170         .table_end      = latex_table_end,
 171         .row_beg        = latex_row_beg,
 172         .row_end        = latex_row_end,
 173         .entry_beg      = latex_entry_beg,
 174         .entry_end      = latex_entry_end,
 175         .put_emph       = latex_put_emph,
 176         .put_raw        = latex_put_raw,
 177         .put_ref        = latex_put_ref,
 178         .put_url        = latex_put_url,
 179         .put            = latex_put
 180 };