html.c

   1 #include <stdlib.h>
   2 #include <stdio.h>
   3 #include <string.h>
   4 #include "ctxt.h"
   5
   6 static void html_doc_beg(struct doc *doc)
   7 {
   8         doc_write(doc, "<body>\n");
   9 }
  10
  11 static void html_doc_end(struct doc *doc)
  12 {
  13         doc_write(doc, "\n</body>\n");
  14 }
  15
  16 static int digits(int n)
  17 {
  18         int d = 1;
  19         while ((n /= 10))
  20                 d++;
  21         return d;
  22 }
  23
  24 static char *putint(char *s, int n)
  25 {
  26         int i;
  27         int d = digits(n);
  28         for (i = 0; i < d; i++) {
  29                 s[d - i - 1] = n % 10 + '0';
  30                 n /= 10;
  31         }
  32         s[d] = '\0';
  33         return s + d;
  34 }
  35
  36 static char *putstr(char *dst, char *src)
  37 {
  38         strcpy(dst, src);
  39         return strchr(dst, '\0');
  40 }
  41
  42 static void html_head_beg(struct doc *doc, int level)
  43 {
  44         char buf[64];
  45         char *s = buf;
  46         s = putstr(s, "<h");
  47         s = putint(s, level + 1);
  48         putstr(s, ">");
  49         doc_write(doc, buf);
  50 }
  51
  52 static void html_head_end(struct doc *doc, int level)
  53 {
  54         char buf[64];
  55         char *s = buf;
  56         s = putstr(s, "</h");
  57         s = putint(s, level + 1);
  58         putstr(s, ">");
  59         doc_write(doc, buf);
  60 }
  61
  62 static void html_par_beg(struct doc *doc)
  63 {
  64         doc_write(doc, "<p>\n");
  65 }
  66
  67 static void html_par_end(struct doc *doc)
  68 {
  69 }
  70
  71 static void html_put(struct doc *doc, char *s)
  72 {
  73         doc_write(doc, s);
  74 }
  75
  76 static void html_list_beg(struct doc *doc, int mark)
  77 {
  78         doc_write(doc, "<ul>\n");
  79 }
  80
  81 static void html_list_end(struct doc *doc)
  82 {
  83         doc_write(doc, "</ul>\n");
  84 }
  85
  86 static void html_item_beg(struct doc *doc, char *head)
  87 {
  88         doc_write(doc, "<li>");
  89 }
  90
  91 static void html_item_end(struct doc *doc)
  92 {
  93         doc_write(doc, "</li>\n");
  94 }
  95
  96 static void html_block_beg(struct doc *doc, char *beg)
  97 {
  98         doc_write(doc, beg ? beg : "<pre>");
  99         doc_write(doc, "\n");
 100 }
 101
 102 static void html_block_end(struct doc *doc, char *end)
 103 {
 104         doc_write(doc, end ? end : "</pre>");
 105         doc_write(doc, "\n");
 106 }
 107
 108 static void html_put_link(struct doc *doc, char *d, char *s)
 109 {
 110         char desc[1 << 10];
 111         char *link = desc;
 112         strcpy(desc, s);
 113         while ((link = strchr(link, ':'))) {
 114                 if (link[1] == ' ')
 115                         break;
 116                 link++;
 117         }
 118         if (link)
 119                 *link = '\0';
 120         sprintf(d, "<a href=\"%s\">%s</a>", link ? link + 2 : s, desc);
 121 }
 122
 123 static void html_put_txt(struct doc *doc, char *s, char *m)
 124 {
 125         char b[1024];
 126         switch (m[0]) {
 127         case '*':
 128                 sprintf(b, "<b>%s</b>", s);
 129                 break;
 130         case '/':
 131                 sprintf(b, "<i>%s</i>", s);
 132                 break;
 133         case '%':
 134                 strcpy(b, s);
 135                 break;
 136         case '|':
 137                 html_put_link(doc, b, s);
 138                 break;
 139         default:
 140                 sprintf(b, "%c%s%c", m[0], s, m[1]);
 141         }
 142         html_put(doc, b);
 143 }
 144
 145 static void html_table_beg(struct doc *doc, int columns)
 146 {
 147         doc_write(doc, "<table>\n");
 148 }
 149
 150 static void html_table_end(struct doc *doc)
 151 {
 152         doc_write(doc, "</table>\n");
 153 }
 154
 155 static void html_row_beg(struct doc *doc)
 156 {
 157         doc_write(doc, "<tr>");
 158 }
 159
 160 static void html_row_end(struct doc *doc)
 161 {
 162         doc_write(doc, "</tr>\n");
 163 }
 164
 165 static void html_entry_beg(struct doc *doc)
 166 {
 167         doc_write(doc, "<td>");
 168 }
 169
 170 static void html_entry_end(struct doc *doc)
 171 {
 172         doc_write(doc, "</td>");
 173 }
 174
 175 struct fmt_ops html_ops = {
 176         .doc_beg        = html_doc_beg,
 177         .doc_end        = html_doc_end,
 178         .head_beg       = html_head_beg,
 179         .head_end       = html_head_end,
 180         .par_beg        = html_par_beg,
 181         .par_end        = html_par_end,
 182         .list_beg       = html_list_beg,
 183         .list_end       = html_list_end,
 184         .item_beg       = html_item_beg,
 185         .item_end       = html_item_end,
 186         .table_beg      = html_table_beg,
 187         .table_end      = html_table_end,
 188         .row_beg        = html_row_beg,
 189         .row_end        = html_row_end,
 190         .entry_beg      = html_entry_beg,
 191         .entry_end      = html_entry_end,
 192         .block_beg      = html_block_beg,
 193         .block_end      = html_block_end,
 194         .put            = html_put,
 195         .put_txt        = html_put_txt
 196 };