latex.c

   1 #include <stdlib.h>
   2 #include <stdio.h>
   3 #include <string.h>
   4 #include "ctxt.h"
   5
   6 static void latex_doc_beg(struct doc *doc)
   7 {
   8         doc_write(doc, "\\begin{document}\n");
   9 }
  10
  11 static void latex_doc_end(struct doc *doc)
  12 {
  13         doc_write(doc, "\\end{document}\n");
  14 }
  15
  16 static void latex_head_beg(struct doc *doc, int level)
  17 {
  18         switch (level) {
  19         case 0:
  20                 doc_write(doc, "\\section*{");
  21                 break;
  22         case 1:
  23                 doc_write(doc, "\\subsection*{");
  24                 break;
  25         default:
  26                 doc_write(doc, "\\subsection*{");
  27         }
  28 }
  29
  30 static void latex_head_end(struct doc *doc, int level)
  31 {
  32         doc_write(doc, "}\n");
  33 }
  34
  35 static void latex_par_beg(struct doc *doc)
  36 {
  37 }
  38
  39 static void latex_par_end(struct doc *doc)
  40 {
  41 }
  42
  43 static void latex_put(struct doc *doc, char *s)
  44 {
  45         doc_write(doc, s);
  46 }
  47
  48 static void latex_list_beg(struct doc *doc)
  49 {
  50         doc_write(doc, "\\begin{itemize}\n");
  51 }
  52
  53 static void latex_list_end(struct doc *doc)
  54 {
  55         doc_write(doc, "\\end{itemize}\n");
  56 }
  57
  58 static void latex_item_beg(struct doc *doc)
  59 {
  60         doc_write(doc, "\\item ");
  61 }
  62
  63 static void latex_item_end(struct doc *doc)
  64 {
  65         doc_write(doc, "");
  66 }
  67
  68 static void latex_block_beg(struct doc *doc, char *beg)
  69 {
  70         doc_write(doc, beg ? beg : "\\begin{verbatim}");
  71         doc_write(doc, "\n");
  72 }
  73
  74 static void latex_block_end(struct doc *doc, char *end)
  75 {
  76         doc_write(doc, end ? end : "\\end{verbatim}");
  77         doc_write(doc, "\n");
  78 }
  79
  80 static void latex_put_txt(struct doc *doc, char *s, char *m)
  81 {
  82         char b[1024];
  83         switch(m[0]) {
  84         case '*':
  85                 sprintf(b, "\\textbf{%s}", s);
  86                 break;
  87         case '/':
  88                 sprintf(b, "\\emph{%s}", s);
  89                 break;
  90         case '%':
  91                 strcpy(b, s);
  92                 break;
  93         case '|':
  94                 sprintf(b, "\\cite{%s}", s);
  95                 break;
  96         case '[':
  97                 sprintf(b, "\\footnote{%s}", s);
  98                 break;
  99         default:
 100                 sprintf(b, "%c%s%c", m[0], s, m[1]);
 101         }
 102         latex_put(doc, b);
 103 }
 104
 105 static void latex_table_beg(struct doc *doc, int columns)
 106 {
 107         int i;
 108         doc_write(doc, "\\begin{tabular}");
 109         if (columns) {
 110                 doc_write(doc, "{|");
 111                 for (i = 0; i < columns; i++)
 112                         doc_write(doc, "l|");
 113                 doc_write(doc, "}\n");
 114         }
 115 }
 116
 117 static void latex_table_end(struct doc *doc)
 118 {
 119         doc_write(doc, "\\hline\n");
 120         doc_write(doc, "\\end{tabular}\n");
 121 }
 122
 123 /* a hack to identify the first entry in each row */
 124 static int entcol;
 125
 126 static void latex_row_beg(struct doc *doc)
 127 {
 128         entcol = 0;
 129         doc_write(doc, "\\hline\n");
 130 }
 131
 132 static void latex_row_end(struct doc *doc)
 133 {
 134         doc_write(doc, "\t\\\\\n");
 135 }
 136
 137 static void latex_entry_beg(struct doc *doc)
 138 {
 139         if (entcol++)
 140                 doc_write(doc, "\t& ");
 141 }
 142
 143 static void latex_entry_end(struct doc *doc)
 144 {
 145 }
 146
 147 struct fmt_ops latex_ops = {
 148         .doc_beg        = latex_doc_beg,
 149         .doc_end        = latex_doc_end,
 150         .head_beg       = latex_head_beg,
 151         .head_end       = latex_head_end,
 152         .par_beg        = latex_par_beg,
 153         .par_end        = latex_par_end,
 154         .list_beg       = latex_list_beg,
 155         .list_end       = latex_list_end,
 156         .item_beg       = latex_item_beg,
 157         .item_end       = latex_item_end,
 158         .table_beg      = latex_table_beg,
 159         .table_end      = latex_table_end,
 160         .row_beg        = latex_row_beg,
 161         .row_end        = latex_row_end,
 162         .entry_beg      = latex_entry_beg,
 163         .entry_end      = latex_entry_end,
 164         .block_beg      = latex_block_beg,
 165         .block_end      = latex_block_end,
 166         .put            = latex_put,
 167         .put_txt        = latex_put_txt
 168 };