html.c

   1 #include <stdlib.h>
   2 #include <string.h>
   3 #include "ctxt.h"
   4
   5 static void html_doc_beg(struct doc *doc)
   6 {
   7         doc_write(doc, "<body>\n");
   8 }
   9
  10 static void html_doc_end(struct doc *doc)
  11 {
  12         doc_write(doc, "\n</body>\n");
  13 }
  14
  15 static int digits(int n)
  16 {
  17         int d = 1;
  18         while ((n /= 10))
  19                 d++;
  20         return d;
  21 }
  22
  23 static char *putint(char *s, int n)
  24 {
  25         int i;
  26         int d = digits(n);
  27         for (i = 0; i < d; i++) {
  28                 s[d - i - 1] = n % 10 + '0';
  29                 n /= 10;
  30         }
  31         s[d] = '\0';
  32         return s + d;
  33 }
  34
  35 static char *putstr(char *dst, char *src)
  36 {
  37         strcpy(dst, src);
  38         return strchr(dst, '\0');
  39 }
  40
  41 static void html_head_beg(struct doc *doc, int level)
  42 {
  43         char buf[64];
  44         char *s = buf;
  45         s = putstr(s, "<h");
  46         s = putint(s, level + 1);
  47         putstr(s, ">");
  48         doc_write(doc, buf);
  49 }
  50
  51 static void html_head_end(struct doc *doc, int level)
  52 {
  53         char buf[64];
  54         char *s = buf;
  55         s = putstr(s, "</h");
  56         s = putint(s, level + 1);
  57         putstr(s, ">");
  58         doc_write(doc, buf);
  59 }
  60
  61 static void html_par_beg(struct doc *doc)
  62 {
  63         doc_write(doc, "<p>\n");
  64 }
  65
  66 static void html_par_end(struct doc *doc)
  67 {
  68 }
  69
  70 static void html_put(struct doc *doc, char *s)
  71 {
  72         doc_write(doc, s);
  73 }
  74
  75 static void html_list_beg(struct doc *doc)
  76 {
  77         doc_write(doc, "<ul>\n");
  78 }
  79
  80 static void html_list_end(struct doc *doc)
  81 {
  82         doc_write(doc, "</ul>\n");
  83 }
  84
  85 static void html_item_beg(struct doc *doc)
  86 {
  87         doc_write(doc, "<li>");
  88 }
  89
  90 static void html_item_end(struct doc *doc)
  91 {
  92         doc_write(doc, "</li>\n");
  93 }
  94
  95 static void html_block_beg(struct doc *doc, char *beg, int block)
  96 {
  97         switch (block) {
  98         case B_PRE:
  99                 doc_write(doc, "<pre>");
 100                 break;
 101         case B_MATH:
 102                 doc_write(doc, "<p><i>");
 103                 break;
 104         case B_RAW:
 105                 break;
 106         }
 107 }
 108
 109 static void html_block_end(struct doc *doc, char *end, int block)
 110 {
 111         switch (block) {
 112         case B_PRE:
 113                 doc_write(doc, "</pre>");
 114                 break;
 115         case B_MATH:
 116                 doc_write(doc, "</i>\n");
 117                 break;
 118         case B_RAW:
 119                 break;
 120         }
 121 }
 122
 123 static void html_put_link(struct doc *doc, char *s)
 124 {
 125         char desc[1 << 10];
 126         char *link = desc;
 127         strcpy(desc, s);
 128         while ((link = strchr(desc, ':'))) {
 129                 if (link[1] == ' ')
 130                         break;
 131                 link++;
 132         }
 133         if (link)
 134                 *link = '\0';
 135         doc_write(doc, "<a href=\"");
 136         doc_write(doc, link ? link + 2 : s);
 137         doc_write(doc, "\">");
 138         doc_write(doc, desc);
 139         doc_write(doc, "</a>");
 140 }
 141
 142 static void html_put_txt(struct doc *doc, char *s, int marker)
 143 {
 144         switch (marker) {
 145         case M_EMPH:
 146                 doc_write(doc, "<b>");
 147                 doc_write(doc, s);
 148                 doc_write(doc, "</b>");
 149                 break;
 150         case M_RAW:
 151                 doc_write(doc, s);
 152                 break;
 153         case M_LINK:
 154                 html_put_link(doc, s);
 155                 break;
 156         case M_FOOT:
 157                 doc_write(doc, "[");
 158                 doc_write(doc, s);
 159                 doc_write(doc, "]");
 160                 break;
 161         default:
 162                 html_put(doc, s);
 163         }
 164
 165 }
 166
 167 static void html_table_beg(struct doc *doc, int columns)
 168 {
 169         doc_write(doc, "<table>\n");
 170 }
 171
 172 static void html_table_end(struct doc *doc)
 173 {
 174         doc_write(doc, "</table>\n");
 175 }
 176
 177 static void html_row_beg(struct doc *doc)
 178 {
 179         doc_write(doc, "<tr>");
 180 }
 181
 182 static void html_row_end(struct doc *doc)
 183 {
 184         doc_write(doc, "</tr>\n");
 185 }
 186
 187 static void html_entry_beg(struct doc *doc)
 188 {
 189         doc_write(doc, "<td>");
 190 }
 191
 192 static void html_entry_end(struct doc *doc)
 193 {
 194         doc_write(doc, "</td>");
 195 }
 196
 197 struct fmt_ops html_ops = {
 198         .doc_beg        = html_doc_beg,
 199         .doc_end        = html_doc_end,
 200         .head_beg       = html_head_beg,
 201         .head_end       = html_head_end,
 202         .par_beg        = html_par_beg,
 203         .par_end        = html_par_end,
 204         .list_beg       = html_list_beg,
 205         .list_end       = html_list_end,
 206         .item_beg       = html_item_beg,
 207         .item_end       = html_item_end,
 208         .table_beg      = html_table_beg,
 209         .table_end      = html_table_end,
 210         .row_beg        = html_row_beg,
 211         .row_end        = html_row_end,
 212         .entry_beg      = html_entry_beg,
 213         .entry_end      = html_entry_end,
 214         .block_beg      = html_block_beg,
 215         .block_end      = html_block_end,
 216         .put            = html_put,
 217         .put_txt        = html_put_txt
 218 };