adamdunkels | ca9ddcb | 2003-03-19 14:13:31 +0000 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (c) 2002, Adam Dunkels. |
| 3 | * All rights reserved. |
| 4 | * |
| 5 | * Redistribution and use in source and binary forms, with or without |
| 6 | * modification, are permitted provided that the following conditions |
| 7 | * are met: |
| 8 | * 1. Redistributions of source code must retain the above copyright |
| 9 | * notice, this list of conditions and the following disclaimer. |
| 10 | * 2. Redistributions in binary form must reproduce the above |
| 11 | * copyright notice, this list of conditions and the following |
| 12 | * disclaimer in the documentation and/or other materials provided |
| 13 | * with the distribution. |
adamdunkels | 06f897e | 2004-06-06 05:59:20 +0000 | [diff] [blame] | 14 | * 3. The name of the author may not be used to endorse or promote |
adamdunkels | ca9ddcb | 2003-03-19 14:13:31 +0000 | [diff] [blame] | 15 | * products derived from this software without specific prior |
| 16 | * written permission. |
| 17 | * |
| 18 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS |
| 19 | * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED |
| 20 | * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| 21 | * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY |
| 22 | * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| 23 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE |
| 24 | * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
| 25 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, |
| 26 | * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING |
| 27 | * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS |
| 28 | * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 29 | * |
| 30 | * This file is part of the Contiki desktop environment |
| 31 | * |
oliverschmidt | 35514d5 | 2005-06-12 23:44:29 +0000 | [diff] [blame] | 32 | * $Id: htmlparser.c,v 1.11 2005/06/12 23:44:29 oliverschmidt Exp $ |
adamdunkels | ca9ddcb | 2003-03-19 14:13:31 +0000 | [diff] [blame] | 33 | * |
| 34 | */ |
| 35 | |
| 36 | /* htmlparser.c: |
| 37 | * |
| 38 | * Implements a very simplistic HTML parser. It recognizes HTML links |
| 39 | * (<a href>-tags), HTML img alt tags, a few text flow break tags |
| 40 | G * (<br>, <p>, <h>), the <li> tag (but does not even try to |
| 41 | * distinguish between <ol> or <ul>) as well as HTML comment tags |
| 42 | * (<!-- -->). |
| 43 | * |
| 44 | * To save memory, the HTML parser is state machine driver, which |
| 45 | * means that it will shave off one character from the HTML page, |
| 46 | * process that character, and return to the next. Another way of |
| 47 | * doing it would be to buffer a number of characters and process them |
| 48 | * together. |
| 49 | * |
| 50 | * The main function in this file is the htmlparser_parse() function |
| 51 | * which takes a htmlparser_state structur and a part of an HTML file |
| 52 | * as an argument. The htmlparser_parse() function will call the |
| 53 | * helper functions parse_char() and parse_tag(). Those functions will |
| 54 | * in turn call the two callback functions htmlparser_char() and |
| 55 | * htmlparser_tag(). Those functions must be implemented by the using |
| 56 | * module (e.g., a web browser program). |
| 57 | * |
| 58 | * htmlparser_char() will be called for every non-tag character. |
| 59 | * |
| 60 | * htmlparser_tag() will be called whenever a full tag has been found. |
| 61 | * |
| 62 | */ |
| 63 | |
| 64 | |
| 65 | #include "htmlparser.h" |
| 66 | #include "html-strings.h" |
| 67 | #include "www-conf.h" |
adamdunkels | 9d1aaef | 2003-04-05 12:21:37 +0000 | [diff] [blame] | 68 | #include "cc.h" |
adamdunkels | ca9ddcb | 2003-03-19 14:13:31 +0000 | [diff] [blame] | 69 | |
oliverschmidt | 3901c23 | 2004-06-13 09:48:32 +0000 | [diff] [blame] | 70 | #include <string.h> |
| 71 | |
adamdunkels | ca9ddcb | 2003-03-19 14:13:31 +0000 | [diff] [blame] | 72 | #if 1 |
oliverschmidt | e6280c9 | 2005-05-20 21:53:21 +0000 | [diff] [blame] | 73 | #define PRINTF(x) |
adamdunkels | ca9ddcb | 2003-03-19 14:13:31 +0000 | [diff] [blame] | 74 | #else |
| 75 | #include <stdio.h> |
| 76 | #define PRINTF(x) printf x |
| 77 | #endif |
| 78 | |
adamdunkels | ca9ddcb | 2003-03-19 14:13:31 +0000 | [diff] [blame] | 79 | |
| 80 | /*-----------------------------------------------------------------------------------*/ |
| 81 | #define ISO_A 0x41 |
| 82 | #define ISO_B 0x42 |
| 83 | #define ISO_E 0x45 |
| 84 | #define ISO_F 0x46 |
| 85 | #define ISO_G 0x47 |
| 86 | #define ISO_H 0x48 |
| 87 | #define ISO_I 0x49 |
| 88 | #define ISO_L 0x4c |
| 89 | #define ISO_M 0x4d |
| 90 | #define ISO_P 0x50 |
| 91 | #define ISO_R 0x52 |
| 92 | #define ISO_T 0x54 |
| 93 | |
| 94 | #define ISO_a (ISO_A | 0x20) |
| 95 | #define ISO_b (ISO_B | 0x20) |
| 96 | #define ISO_e (ISO_E | 0x20) |
| 97 | #define ISO_f (ISO_F | 0x20) |
| 98 | #define ISO_g (ISO_G | 0x20) |
| 99 | #define ISO_h (ISO_H | 0x20) |
| 100 | #define ISO_i (ISO_I | 0x20) |
| 101 | #define ISO_l (ISO_L | 0x20) |
| 102 | #define ISO_m (ISO_M | 0x20) |
| 103 | #define ISO_p (ISO_P | 0x20) |
| 104 | #define ISO_r (ISO_R | 0x20) |
| 105 | #define ISO_t (ISO_T | 0x20) |
| 106 | |
| 107 | #define ISO_ht 0x09 |
| 108 | #define ISO_nl 0x0a |
| 109 | #define ISO_cr 0x0d |
| 110 | #define ISO_space 0x20 |
| 111 | #define ISO_bang 0x21 |
| 112 | #define ISO_citation 0x22 |
| 113 | #define ISO_ampersand 0x26 |
| 114 | #define ISO_citation2 0x27 |
| 115 | #define ISO_asterisk 0x2a |
| 116 | #define ISO_dash 0x2d |
| 117 | #define ISO_slash 0x2f |
| 118 | #define ISO_semicolon 0x3b |
| 119 | #define ISO_lt 0x3c |
| 120 | #define ISO_eq 0x3d |
| 121 | #define ISO_gt 0x3e |
| 122 | |
| 123 | #define ISO_rbrack 0x5b |
| 124 | #define ISO_lbrack 0x5d |
| 125 | |
| 126 | #define MINORSTATE_NONE 0 |
| 127 | #define MINORSTATE_TEXT 1 /* Parse normal text */ |
| 128 | #define MINORSTATE_EXTCHAR 2 /* Check for semi-colon */ |
| 129 | #define MINORSTATE_TAG 3 /* Check for name of tag. */ |
| 130 | #define MINORSTATE_TAGEND 4 /* Scan for end of tag. */ |
| 131 | #define MINORSTATE_TAGATTR 5 /* Parse tag attr. */ |
| 132 | #define MINORSTATE_TAGATTRSPACE 6 /* Parse optional space after tag |
| 133 | attr. */ |
| 134 | #define MINORSTATE_TAGATTRPARAM 7 /* Parse tag attr parameter. */ |
| 135 | #define MINORSTATE_TAGATTRPARAMNQ 8 /* Parse tag attr parameter without |
| 136 | quotation marks. */ |
| 137 | #define MINORSTATE_HTMLCOMMENT 9 /* Scan for HTML comment end */ |
| 138 | |
| 139 | #define MAJORSTATE_NONE 0 |
| 140 | #define MAJORSTATE_BODY 1 |
| 141 | #define MAJORSTATE_LINK 2 |
| 142 | #define MAJORSTATE_FORM 3 |
| 143 | #define MAJORSTATE_DISCARD 4 |
| 144 | |
| 145 | |
| 146 | struct htmlparser_state { |
adamdunkels | 269d7be | 2004-09-03 09:55:22 +0000 | [diff] [blame] | 147 | |
adamdunkels | ca9ddcb | 2003-03-19 14:13:31 +0000 | [diff] [blame] | 148 | unsigned char minorstate; |
| 149 | char tag[20]; |
| 150 | unsigned char tagptr; |
| 151 | char tagattr[20]; |
| 152 | unsigned char tagattrptr; |
| 153 | char tagattrparam[WWW_CONF_MAX_URLLEN]; |
| 154 | unsigned char tagattrparamptr; |
| 155 | unsigned char lastchar, quotechar; |
| 156 | unsigned char majorstate, lastmajorstate; |
| 157 | char linkurl[WWW_CONF_MAX_URLLEN]; |
adamdunkels | 269d7be | 2004-09-03 09:55:22 +0000 | [diff] [blame] | 158 | |
oliverschmidt | 7eb2981 | 2005-05-20 20:49:30 +0000 | [diff] [blame] | 159 | char word[WWW_CONF_WEBPAGE_WIDTH]; |
| 160 | unsigned char wordlen; |
adamdunkels | 269d7be | 2004-09-03 09:55:22 +0000 | [diff] [blame] | 161 | |
adamdunkels | ca9ddcb | 2003-03-19 14:13:31 +0000 | [diff] [blame] | 162 | #if WWW_CONF_FORMS |
| 163 | char formaction[WWW_CONF_MAX_FORMACTIONLEN]; |
| 164 | char formname[WWW_CONF_MAX_FORMNAMELEN]; |
| 165 | unsigned char inputtype; |
| 166 | char inputname[WWW_CONF_MAX_INPUTNAMELEN]; |
| 167 | char inputvalue[WWW_CONF_MAX_INPUTVALUELEN]; |
| 168 | unsigned char inputvaluesize; |
| 169 | #endif /* WWW_CONF_FORMS */ |
| 170 | }; |
| 171 | |
| 172 | static struct htmlparser_state s; |
| 173 | |
| 174 | /*-----------------------------------------------------------------------------------*/ |
| 175 | static char last[1] = {0xff}; |
| 176 | |
adamdunkels | 6f6d88c | 2003-09-04 19:33:05 +0000 | [diff] [blame] | 177 | static const char *tags[] = { |
adamdunkels | ca9ddcb | 2003-03-19 14:13:31 +0000 | [diff] [blame] | 178 | #define TAG_FIRST 0 |
| 179 | #define TAG_SLASHA 0 |
| 180 | html_slasha, |
| 181 | #define TAG_SLASHCENTER 1 |
| 182 | html_slashcenter, |
| 183 | #define TAG_SLASHFORM 2 |
| 184 | html_slashform, |
| 185 | #define TAG_SLASHH 3 |
| 186 | html_slashh, |
| 187 | #define TAG_SLASHSCRIPT 4 |
| 188 | html_slashscript, |
| 189 | #define TAG_SLASHSELECT 5 |
| 190 | html_slashselect, |
| 191 | #define TAG_SLASHSTYLE 6 |
| 192 | html_slashstyle, |
| 193 | #define TAG_A 7 |
| 194 | html_a, |
| 195 | #define TAG_BODY 8 |
| 196 | html_body, |
| 197 | #define TAG_BR 9 |
| 198 | html_br, |
| 199 | #define TAG_CENTER 10 |
| 200 | html_center, |
| 201 | #define TAG_FORM 11 |
| 202 | html_form, |
| 203 | #define TAG_FRAME 12 |
| 204 | html_frame, |
| 205 | #define TAG_H1 13 |
| 206 | html_h1, |
| 207 | #define TAG_H2 14 |
| 208 | html_h2, |
| 209 | #define TAG_H3 15 |
| 210 | html_h3, |
| 211 | #define TAG_H4 16 |
| 212 | html_h4, |
| 213 | #define TAG_IMG 17 |
| 214 | html_img, |
| 215 | #define TAG_INPUT 18 |
| 216 | html_input, |
| 217 | #define TAG_LI 19 |
| 218 | html_li, |
| 219 | #define TAG_P 20 |
| 220 | html_p, |
| 221 | #define TAG_SCRIPT 21 |
| 222 | html_script, |
| 223 | #define TAG_SELECT 22 |
| 224 | html_select, |
| 225 | #define TAG_STYLE 23 |
| 226 | html_style, |
| 227 | #define TAG_TR 24 |
| 228 | html_tr, |
| 229 | #define TAG_LAST 25 |
| 230 | last, |
| 231 | }; |
| 232 | |
| 233 | /*-----------------------------------------------------------------------------------*/ |
adamdunkels | 9d1aaef | 2003-04-05 12:21:37 +0000 | [diff] [blame] | 234 | static unsigned char CC_FASTCALL |
adamdunkels | ca9ddcb | 2003-03-19 14:13:31 +0000 | [diff] [blame] | 235 | iswhitespace(char c) |
| 236 | { |
| 237 | return (c == ISO_space || |
| 238 | c == ISO_nl || |
| 239 | c == ISO_cr || |
| 240 | c == ISO_ht); |
| 241 | } |
| 242 | /*-----------------------------------------------------------------------------------*/ |
adamdunkels | 269d7be | 2004-09-03 09:55:22 +0000 | [diff] [blame] | 243 | void |
| 244 | htmlparser_init(void) |
| 245 | { |
| 246 | s.majorstate = s.lastmajorstate = MAJORSTATE_DISCARD; |
| 247 | s.minorstate = MINORSTATE_TEXT; |
| 248 | s.lastchar = 0; |
| 249 | } |
| 250 | /*-----------------------------------------------------------------------------------*/ |
| 251 | static char CC_FASTCALL |
| 252 | lowercase(char c) |
| 253 | { |
| 254 | /* XXX: This is a *brute force* approach to lower-case |
| 255 | converting and should *not* be used anywhere else! It |
| 256 | works for our purposes, however (i.e., HTML tags). */ |
| 257 | if(c > 0x40) { |
| 258 | return (c & 0x1f) | 0x60; |
| 259 | } else { |
| 260 | return c; |
| 261 | } |
| 262 | } |
| 263 | /*-----------------------------------------------------------------------------------*/ |
| 264 | static void |
| 265 | endtagfound(void) |
| 266 | { |
| 267 | s.tag[s.tagptr] = 0; |
| 268 | s.tagattr[s.tagattrptr] = 0; |
| 269 | s.tagattrparam[s.tagattrparamptr] = 0; |
| 270 | } |
| 271 | /*-----------------------------------------------------------------------------------*/ |
| 272 | static void CC_FASTCALL |
| 273 | switch_majorstate(unsigned char newstate) |
| 274 | { |
| 275 | if(s.majorstate != newstate) { |
| 276 | PRINTF(("Switching state from %d to %d (%d)\n", s.majorstate, newstate, s.lastmajorstate)); |
| 277 | s.lastmajorstate = s.majorstate; |
| 278 | s.majorstate = newstate; |
| 279 | } |
| 280 | } |
| 281 | /*-----------------------------------------------------------------------------------*/ |
| 282 | static void CC_FASTCALL |
| 283 | add_char(unsigned char c) |
| 284 | { |
oliverschmidt | 7eb2981 | 2005-05-20 20:49:30 +0000 | [diff] [blame] | 285 | if(s.wordlen < WWW_CONF_WEBPAGE_WIDTH - 1 && c < 0x80) { |
adamdunkels | 269d7be | 2004-09-03 09:55:22 +0000 | [diff] [blame] | 286 | s.word[s.wordlen] = c; |
| 287 | ++s.wordlen; |
adamdunkels | 269d7be | 2004-09-03 09:55:22 +0000 | [diff] [blame] | 288 | } |
| 289 | } |
| 290 | /*-----------------------------------------------------------------------------------*/ |
| 291 | static void |
| 292 | do_word(void) |
| 293 | { |
| 294 | if(s.wordlen > 0) { |
| 295 | if(s.majorstate == MAJORSTATE_LINK) { |
| 296 | if(s.word[s.wordlen] != ISO_space) { |
| 297 | add_char(ISO_space); |
| 298 | } |
| 299 | } else if(s.majorstate == MAJORSTATE_DISCARD) { |
| 300 | s.wordlen = 0; |
| 301 | } else { |
| 302 | s.word[s.wordlen] = '\0'; |
| 303 | htmlparser_word(s.word, s.wordlen); |
| 304 | s.wordlen = 0; |
| 305 | } |
| 306 | } |
| 307 | } |
| 308 | /*-----------------------------------------------------------------------------------*/ |
| 309 | static void |
| 310 | newline(void) |
| 311 | { |
| 312 | do_word(); |
| 313 | htmlparser_newline(); |
| 314 | } |
| 315 | /*-----------------------------------------------------------------------------------*/ |
adamdunkels | 9d1aaef | 2003-04-05 12:21:37 +0000 | [diff] [blame] | 316 | static unsigned char CC_FASTCALL |
adamdunkels | ca9ddcb | 2003-03-19 14:13:31 +0000 | [diff] [blame] | 317 | find_tag(char *tag) |
| 318 | { |
| 319 | static unsigned char first, last, i, tabi; |
| 320 | static char tagc; |
| 321 | |
adamdunkels | 269d7be | 2004-09-03 09:55:22 +0000 | [diff] [blame] | 322 | first = TAG_FIRST; |
adamdunkels | ca9ddcb | 2003-03-19 14:13:31 +0000 | [diff] [blame] | 323 | last = TAG_LAST; |
| 324 | i = 0; |
| 325 | |
| 326 | do { |
| 327 | tagc = tag[i]; |
| 328 | |
| 329 | if(tagc == 0 && |
| 330 | tags[first][i] == 0) { |
| 331 | return first; |
| 332 | } |
adamdunkels | 269d7be | 2004-09-03 09:55:22 +0000 | [diff] [blame] | 333 | |
| 334 | tabi = first; |
adamdunkels | ca9ddcb | 2003-03-19 14:13:31 +0000 | [diff] [blame] | 335 | |
| 336 | /* First, find first matching tag from table. */ |
| 337 | while(tagc > (tags[tabi])[i] && |
| 338 | tabi < last) { |
| 339 | ++tabi; |
| 340 | } |
| 341 | first = tabi; |
| 342 | |
| 343 | /* Second, find last matching tag from table. */ |
| 344 | while(tagc == (tags[tabi])[i] && |
| 345 | tabi < last) { |
| 346 | ++tabi; |
| 347 | } |
| 348 | last = tabi; |
| 349 | |
adamdunkels | 269d7be | 2004-09-03 09:55:22 +0000 | [diff] [blame] | 350 | /* If first and last matching tags are equal, we have a non-match |
| 351 | and return. Else we continue with the next character. */ |
adamdunkels | ca9ddcb | 2003-03-19 14:13:31 +0000 | [diff] [blame] | 352 | ++i; |
adamdunkels | 269d7be | 2004-09-03 09:55:22 +0000 | [diff] [blame] | 353 | |
adamdunkels | ca9ddcb | 2003-03-19 14:13:31 +0000 | [diff] [blame] | 354 | } while(last != first); |
| 355 | return TAG_LAST; |
| 356 | } |
| 357 | /*-----------------------------------------------------------------------------------*/ |
adamdunkels | ca9ddcb | 2003-03-19 14:13:31 +0000 | [diff] [blame] | 358 | static void |
| 359 | parse_tag(void) |
| 360 | { |
| 361 | static char *tagattrparam; |
oliverschmidt | 35514d5 | 2005-06-12 23:44:29 +0000 | [diff] [blame] | 362 | static unsigned char size; |
adamdunkels | 269d7be | 2004-09-03 09:55:22 +0000 | [diff] [blame] | 363 | |
| 364 | static char dummy; |
adamdunkels | ca9ddcb | 2003-03-19 14:13:31 +0000 | [diff] [blame] | 365 | |
| 366 | PRINTF(("Parsing tag '%s' '%s' '%s'\n", |
| 367 | s.tag, s.tagattr, s.tagattrparam)); |
| 368 | |
| 369 | switch(find_tag(s.tag)) { |
| 370 | case TAG_P: |
| 371 | case TAG_H1: |
| 372 | case TAG_H2: |
| 373 | case TAG_H3: |
| 374 | case TAG_H4: |
adamdunkels | 269d7be | 2004-09-03 09:55:22 +0000 | [diff] [blame] | 375 | /* parse_char(ISO_nl);*/ |
| 376 | newline(); |
adamdunkels | ca9ddcb | 2003-03-19 14:13:31 +0000 | [diff] [blame] | 377 | /* FALLTHROUGH */ |
| 378 | case TAG_BR: |
| 379 | case TAG_TR: |
| 380 | case TAG_SLASHH: |
adamdunkels | 269d7be | 2004-09-03 09:55:22 +0000 | [diff] [blame] | 381 | /* parse_char(ISO_nl);*/ |
| 382 | dummy = 0; |
| 383 | newline(); |
adamdunkels | ca9ddcb | 2003-03-19 14:13:31 +0000 | [diff] [blame] | 384 | break; |
| 385 | case TAG_LI: |
adamdunkels | 269d7be | 2004-09-03 09:55:22 +0000 | [diff] [blame] | 386 | newline(); |
| 387 | add_char(ISO_asterisk); |
| 388 | add_char(ISO_space); |
adamdunkels | ca9ddcb | 2003-03-19 14:13:31 +0000 | [diff] [blame] | 389 | break; |
| 390 | case TAG_SCRIPT: |
| 391 | case TAG_STYLE: |
| 392 | case TAG_SELECT: |
| 393 | switch_majorstate(MAJORSTATE_DISCARD); |
| 394 | break; |
| 395 | case TAG_SLASHSCRIPT: |
| 396 | case TAG_SLASHSTYLE: |
| 397 | case TAG_SLASHSELECT: |
oliverschmidt | 3c50b3f | 2005-05-20 21:49:54 +0000 | [diff] [blame] | 398 | do_word(); |
adamdunkels | ca9ddcb | 2003-03-19 14:13:31 +0000 | [diff] [blame] | 399 | switch_majorstate(s.lastmajorstate); |
| 400 | break; |
| 401 | case TAG_BODY: |
| 402 | s.majorstate = s.lastmajorstate = MAJORSTATE_BODY; |
| 403 | break; |
| 404 | case TAG_FRAME: |
| 405 | if(strncmp(s.tagattr, html_src, sizeof(html_src)) == 0 && |
| 406 | s.tagattrparam[0] != 0) { |
| 407 | switch_majorstate(MAJORSTATE_BODY); |
adamdunkels | 269d7be | 2004-09-03 09:55:22 +0000 | [diff] [blame] | 408 | newline(); |
| 409 | add_char(ISO_rbrack); |
| 410 | do_word(); |
| 411 | htmlparser_link((char *)html_frame, strlen(html_frame), s.tagattrparam); |
adamdunkels | ca9ddcb | 2003-03-19 14:13:31 +0000 | [diff] [blame] | 412 | PRINTF(("Frame [%s]\n", s.tagattrparam)); |
adamdunkels | 269d7be | 2004-09-03 09:55:22 +0000 | [diff] [blame] | 413 | add_char(ISO_lbrack); |
| 414 | newline(); |
adamdunkels | ca9ddcb | 2003-03-19 14:13:31 +0000 | [diff] [blame] | 415 | } |
| 416 | break; |
| 417 | case TAG_IMG: |
| 418 | if(strncmp(s.tagattr, html_alt, sizeof(html_alt)) == 0 && |
| 419 | s.tagattrparam[0] != 0) { |
adamdunkels | 269d7be | 2004-09-03 09:55:22 +0000 | [diff] [blame] | 420 | /* parse_char(ISO_lt);*/ |
| 421 | add_char(ISO_lt); |
adamdunkels | ca9ddcb | 2003-03-19 14:13:31 +0000 | [diff] [blame] | 422 | tagattrparam = &s.tagattrparam[0]; |
| 423 | while(*tagattrparam) { |
adamdunkels | 269d7be | 2004-09-03 09:55:22 +0000 | [diff] [blame] | 424 | /* parse_char(*tagattrparam);*/ |
| 425 | add_char(*tagattrparam); |
adamdunkels | ca9ddcb | 2003-03-19 14:13:31 +0000 | [diff] [blame] | 426 | ++tagattrparam; |
| 427 | } |
adamdunkels | 269d7be | 2004-09-03 09:55:22 +0000 | [diff] [blame] | 428 | /* parse_char(ISO_gt);*/ |
| 429 | add_char(ISO_gt); |
| 430 | do_word(); |
adamdunkels | ca9ddcb | 2003-03-19 14:13:31 +0000 | [diff] [blame] | 431 | } |
| 432 | break; |
| 433 | case TAG_A: |
| 434 | PRINTF(("A %s %s\n", s.tagattr, s.tagattrparam)); |
| 435 | if(strncmp(s.tagattr, html_href, sizeof(html_href)) == 0 && |
| 436 | s.tagattrparam[0] != 0) { |
| 437 | strcpy(s.linkurl, s.tagattrparam); |
adamdunkels | 269d7be | 2004-09-03 09:55:22 +0000 | [diff] [blame] | 438 | do_word(); |
adamdunkels | ca9ddcb | 2003-03-19 14:13:31 +0000 | [diff] [blame] | 439 | switch_majorstate(MAJORSTATE_LINK); |
adamdunkels | ca9ddcb | 2003-03-19 14:13:31 +0000 | [diff] [blame] | 440 | } |
| 441 | break; |
| 442 | case TAG_SLASHA: |
| 443 | if(s.majorstate == MAJORSTATE_LINK) { |
| 444 | switch_majorstate(s.lastmajorstate); |
adamdunkels | 269d7be | 2004-09-03 09:55:22 +0000 | [diff] [blame] | 445 | s.word[s.wordlen] = 0; |
| 446 | htmlparser_link(s.word, s.wordlen, s.linkurl); |
| 447 | s.wordlen = 0; |
adamdunkels | ca9ddcb | 2003-03-19 14:13:31 +0000 | [diff] [blame] | 448 | } |
| 449 | break; |
| 450 | #if WWW_CONF_FORMS |
| 451 | case TAG_FORM: |
| 452 | PRINTF(("Form tag\n")); |
| 453 | switch_majorstate(MAJORSTATE_FORM); |
| 454 | if(strncmp(s.tagattr, html_action, sizeof(html_action)) == 0) { |
| 455 | PRINTF(("Form action '%s'\n", s.tagattrparam)); |
| 456 | strncpy(s.formaction, s.tagattrparam, WWW_CONF_MAX_FORMACTIONLEN - 1); |
| 457 | } else if(strncmp(s.tagattr, html_name, sizeof(html_name)) == 0) { |
| 458 | PRINTF(("Form name '%s'\n", s.tagattrparam)); |
| 459 | strncpy(s.formname, s.tagattrparam, WWW_CONF_MAX_FORMNAMELEN - 1); |
| 460 | } |
| 461 | s.inputname[0] = s.inputvalue[0] = 0; |
| 462 | break; |
| 463 | case TAG_SLASHFORM: |
| 464 | switch_majorstate(MAJORSTATE_BODY); |
| 465 | s.formaction[0] = s.formname[0] = 0; |
| 466 | break; |
| 467 | case TAG_INPUT: |
| 468 | if(s.majorstate == MAJORSTATE_FORM) { |
| 469 | /* First check if we are called at the end of an input tag. If |
| 470 | so, we should render the input widget. */ |
| 471 | if(s.tagattr[0] == 0 && |
| 472 | s.inputname[0] != 0) { |
| 473 | PRINTF(("Render input type %d\n", s.inputtype)); |
| 474 | switch(s.inputtype) { |
| 475 | case HTMLPARSER_INPUTTYPE_NONE: |
| 476 | case HTMLPARSER_INPUTTYPE_TEXT: |
oliverschmidt | 35514d5 | 2005-06-12 23:44:29 +0000 | [diff] [blame] | 477 | s.inputvalue[s.inputvaluesize] = 0; |
| 478 | htmlparser_inputfield(s.inputvaluesize, s.inputvalue, s.inputname, |
adamdunkels | ca9ddcb | 2003-03-19 14:13:31 +0000 | [diff] [blame] | 479 | s.formname, s.formaction); |
| 480 | break; |
| 481 | case HTMLPARSER_INPUTTYPE_SUBMIT: |
adamdunkels | fe6cd59 | 2003-08-09 13:29:53 +0000 | [diff] [blame] | 482 | case HTMLPARSER_INPUTTYPE_IMAGE: |
adamdunkels | ca9ddcb | 2003-03-19 14:13:31 +0000 | [diff] [blame] | 483 | htmlparser_submitbutton(s.inputvalue, s.inputname, |
| 484 | s.formname, s.formaction); |
| 485 | break; |
| 486 | } |
| 487 | s.inputtype = HTMLPARSER_INPUTTYPE_NONE; |
| 488 | } else { |
| 489 | PRINTF(("Input '%s' '%s'\n", s.tagattr, s.tagattrparam)); |
| 490 | if(strncmp(s.tagattr, html_type, sizeof(html_type)) == 0) { |
| 491 | if(strncmp(s.tagattrparam, html_submit, |
| 492 | sizeof(html_submit)) == 0) { |
| 493 | s.inputtype = HTMLPARSER_INPUTTYPE_SUBMIT; |
| 494 | } else if(strncmp(s.tagattrparam, html_image, |
| 495 | sizeof(html_image)) == 0) { |
| 496 | s.inputtype = HTMLPARSER_INPUTTYPE_IMAGE; |
| 497 | } else if(strncmp(s.tagattrparam, html_text, |
| 498 | sizeof(html_text)) == 0) { |
| 499 | s.inputtype = HTMLPARSER_INPUTTYPE_TEXT; |
| 500 | } else { |
| 501 | s.inputtype = HTMLPARSER_INPUTTYPE_OTHER; |
| 502 | } |
| 503 | } else if(strncmp(s.tagattr, html_name, |
| 504 | sizeof(html_name)) == 0) { |
| 505 | strncpy(s.inputname, s.tagattrparam, |
| 506 | WWW_CONF_MAX_INPUTNAMELEN); |
| 507 | } else if(strncmp(s.tagattr, html_alt, |
| 508 | sizeof(html_alt)) == 0 && |
| 509 | s.inputtype == HTMLPARSER_INPUTTYPE_IMAGE) { |
| 510 | strncpy(s.inputvalue, s.tagattrparam, |
| 511 | WWW_CONF_MAX_INPUTVALUELEN); |
| 512 | } else if(strncmp(s.tagattr, html_value, |
| 513 | sizeof(html_value)) == 0) { |
| 514 | strncpy(s.inputvalue, s.tagattrparam, |
| 515 | WWW_CONF_MAX_INPUTVALUELEN); |
| 516 | } else if(strncmp(s.tagattr, html_size, |
| 517 | sizeof(html_size)) == 0) { |
| 518 | size = 0; |
| 519 | if(s.tagattrparam[0] >= '0' && |
| 520 | s.tagattrparam[0] <= '9') { |
| 521 | size = s.tagattrparam[0] - '0'; |
| 522 | if(s.tagattrparam[1] >= '0' && |
| 523 | s.tagattrparam[1] <= '9') { |
| 524 | size = size * 10 + (s.tagattrparam[1] - '0'); |
| 525 | } |
| 526 | } |
| 527 | if(size >= WWW_CONF_MAX_INPUTVALUELEN) { |
| 528 | size = WWW_CONF_MAX_INPUTVALUELEN - 1; |
| 529 | } |
| 530 | s.inputvaluesize = size; |
| 531 | /* strncpy(s.inputvalue, s.tagattrparam, |
| 532 | WWW_CONF_MAX_INPUTVALUELEN);*/ |
| 533 | } |
| 534 | } |
| 535 | |
| 536 | } |
| 537 | break; |
| 538 | #endif /* WWW_CONF_FORMS */ |
| 539 | #if WWW_CONF_RENDERSTATE |
| 540 | case TAG_CENTER: |
adamdunkels | 269d7be | 2004-09-03 09:55:22 +0000 | [diff] [blame] | 541 | /* parse_char(ISO_nl); */ |
| 542 | newline(); |
adamdunkels | ca9ddcb | 2003-03-19 14:13:31 +0000 | [diff] [blame] | 543 | htmlparser_renderstate(HTMLPARSER_RENDERSTATE_BEGIN | |
| 544 | HTMLPARSER_RENDERSTATE_CENTER); |
| 545 | break; |
| 546 | case TAG_SLASHCENTER: |
adamdunkels | 269d7be | 2004-09-03 09:55:22 +0000 | [diff] [blame] | 547 | /* parse_char(ISO_nl);*/ |
| 548 | newline(); |
adamdunkels | ca9ddcb | 2003-03-19 14:13:31 +0000 | [diff] [blame] | 549 | htmlparser_renderstate(HTMLPARSER_RENDERSTATE_END | |
| 550 | HTMLPARSER_RENDERSTATE_CENTER); |
| 551 | break; |
| 552 | #endif /* WWW_CONF_RENDERSTATE */ |
| 553 | } |
| 554 | } |
| 555 | /*-----------------------------------------------------------------------------------*/ |
adamdunkels | 269d7be | 2004-09-03 09:55:22 +0000 | [diff] [blame] | 556 | static u16_t |
| 557 | parse_word(char *data, u8_t dlen) |
adamdunkels | ca9ddcb | 2003-03-19 14:13:31 +0000 | [diff] [blame] | 558 | { |
adamdunkels | 269d7be | 2004-09-03 09:55:22 +0000 | [diff] [blame] | 559 | static u8_t i; |
| 560 | static u8_t len; |
| 561 | unsigned char c; |
| 562 | |
| 563 | len = dlen; |
| 564 | |
| 565 | switch(s.minorstate) { |
| 566 | case MINORSTATE_TEXT: |
| 567 | for(i = 0; i < len; ++i) { |
| 568 | c = data[i]; |
| 569 | if(iswhitespace(c)) { |
| 570 | do_word(); |
| 571 | } else if(c == ISO_lt) { |
adamdunkels | ca9ddcb | 2003-03-19 14:13:31 +0000 | [diff] [blame] | 572 | s.minorstate = MINORSTATE_TAG; |
| 573 | s.tagptr = 0; |
adamdunkels | 269d7be | 2004-09-03 09:55:22 +0000 | [diff] [blame] | 574 | /* do_word();*/ |
| 575 | break; |
adamdunkels | ca9ddcb | 2003-03-19 14:13:31 +0000 | [diff] [blame] | 576 | } else if(c == ISO_ampersand) { |
| 577 | s.minorstate = MINORSTATE_EXTCHAR; |
adamdunkels | 269d7be | 2004-09-03 09:55:22 +0000 | [diff] [blame] | 578 | break; |
adamdunkels | ca9ddcb | 2003-03-19 14:13:31 +0000 | [diff] [blame] | 579 | } else { |
adamdunkels | 269d7be | 2004-09-03 09:55:22 +0000 | [diff] [blame] | 580 | add_char(c); |
adamdunkels | ca9ddcb | 2003-03-19 14:13:31 +0000 | [diff] [blame] | 581 | } |
adamdunkels | 269d7be | 2004-09-03 09:55:22 +0000 | [diff] [blame] | 582 | } |
| 583 | break; |
| 584 | case MINORSTATE_EXTCHAR: |
| 585 | for(i = 0; i < len; ++i) { |
| 586 | c = data[i]; |
adamdunkels | ca9ddcb | 2003-03-19 14:13:31 +0000 | [diff] [blame] | 587 | if(c == ISO_semicolon) { |
| 588 | s.minorstate = MINORSTATE_TEXT; |
adamdunkels | 269d7be | 2004-09-03 09:55:22 +0000 | [diff] [blame] | 589 | add_char(' '); |
| 590 | break; |
adamdunkels | ca9ddcb | 2003-03-19 14:13:31 +0000 | [diff] [blame] | 591 | } else if(iswhitespace(c)) { |
| 592 | s.minorstate = MINORSTATE_TEXT; |
adamdunkels | 269d7be | 2004-09-03 09:55:22 +0000 | [diff] [blame] | 593 | add_char('&'); |
| 594 | add_char(' '); |
| 595 | break; |
adamdunkels | ca9ddcb | 2003-03-19 14:13:31 +0000 | [diff] [blame] | 596 | } |
adamdunkels | 269d7be | 2004-09-03 09:55:22 +0000 | [diff] [blame] | 597 | } |
| 598 | break; |
| 599 | case MINORSTATE_TAG: |
| 600 | /* We are currently parsing within the name of a tag. We check |
| 601 | for the end of a tag (the '>' character) or whitespace (which |
| 602 | indicates that we should parse a tag attr argument |
| 603 | instead). */ |
| 604 | for(i = 0; i < len; ++i) { |
| 605 | c = data[i]; |
adamdunkels | ca9ddcb | 2003-03-19 14:13:31 +0000 | [diff] [blame] | 606 | if(c == ISO_gt) { |
| 607 | /* Full tag found. We continue parsing regular text. */ |
| 608 | s.minorstate = MINORSTATE_TEXT; |
| 609 | s.tagattrptr = s.tagattrparamptr = 0; |
| 610 | endtagfound(); |
| 611 | parse_tag(); |
adamdunkels | 269d7be | 2004-09-03 09:55:22 +0000 | [diff] [blame] | 612 | break; |
adamdunkels | ca9ddcb | 2003-03-19 14:13:31 +0000 | [diff] [blame] | 613 | } else if(iswhitespace(c)) { |
| 614 | /* The name of the tag found. We continue parsing the tag |
| 615 | attr.*/ |
| 616 | s.minorstate = MINORSTATE_TAGATTR; |
| 617 | s.tagattrptr = 0; |
| 618 | endtagfound(); |
adamdunkels | 269d7be | 2004-09-03 09:55:22 +0000 | [diff] [blame] | 619 | break; |
adamdunkels | ca9ddcb | 2003-03-19 14:13:31 +0000 | [diff] [blame] | 620 | } else { |
| 621 | /* Keep track of the name of the tag, but convert it to |
| 622 | lower case. */ |
adamdunkels | 269d7be | 2004-09-03 09:55:22 +0000 | [diff] [blame] | 623 | |
adamdunkels | ca9ddcb | 2003-03-19 14:13:31 +0000 | [diff] [blame] | 624 | s.tag[s.tagptr] = lowercase(c); |
| 625 | ++s.tagptr; |
| 626 | /* Check if the ->tag field is full. If so, we just eat up |
| 627 | any data left in the tag. */ |
| 628 | if(s.tagptr == sizeof(s.tag)) { |
| 629 | s.minorstate = MINORSTATE_TAGEND; |
adamdunkels | 269d7be | 2004-09-03 09:55:22 +0000 | [diff] [blame] | 630 | break; |
adamdunkels | ca9ddcb | 2003-03-19 14:13:31 +0000 | [diff] [blame] | 631 | } |
| 632 | } |
adamdunkels | 269d7be | 2004-09-03 09:55:22 +0000 | [diff] [blame] | 633 | |
adamdunkels | ca9ddcb | 2003-03-19 14:13:31 +0000 | [diff] [blame] | 634 | /* Check for HTML comment, indicated by <!-- */ |
| 635 | if(s.tagptr == 3 && |
| 636 | s.tag[0] == ISO_bang && |
| 637 | s.tag[1] == ISO_dash && |
| 638 | s.tag[2] == ISO_dash) { |
| 639 | PRINTF(("Starting comment...\n")); |
| 640 | s.minorstate = MINORSTATE_HTMLCOMMENT; |
| 641 | s.tagptr = 0; |
| 642 | endtagfound(); |
adamdunkels | 269d7be | 2004-09-03 09:55:22 +0000 | [diff] [blame] | 643 | break; |
| 644 | } |
| 645 | } |
| 646 | break; |
| 647 | case MINORSTATE_TAGATTR: |
| 648 | /* We parse the "tag attr", i.e., the "href" in <a |
| 649 | href="...">. */ |
| 650 | for(i = 0; i < len; ++i) { |
| 651 | c = data[i]; |
adamdunkels | ca9ddcb | 2003-03-19 14:13:31 +0000 | [diff] [blame] | 652 | if(c == ISO_gt) { |
| 653 | /* Full tag found. */ |
| 654 | s.minorstate = MINORSTATE_TEXT; |
| 655 | s.tagattrparamptr = 0; |
| 656 | s.tagattrptr = 0; |
| 657 | endtagfound(); |
| 658 | parse_tag(); |
| 659 | s.tagptr = 0; |
| 660 | endtagfound(); |
adamdunkels | 269d7be | 2004-09-03 09:55:22 +0000 | [diff] [blame] | 661 | break; |
adamdunkels | ca9ddcb | 2003-03-19 14:13:31 +0000 | [diff] [blame] | 662 | } else if(iswhitespace(c)) { |
| 663 | if(s.tagattrptr == 0) { |
| 664 | /* Discard leading spaces. */ |
| 665 | } else { |
| 666 | /* A non-leading space is the end of the attribute. */ |
| 667 | s.tagattrparamptr = 0; |
| 668 | endtagfound(); |
| 669 | parse_tag(); |
| 670 | s.minorstate = MINORSTATE_TAGATTRSPACE; |
adamdunkels | 269d7be | 2004-09-03 09:55:22 +0000 | [diff] [blame] | 671 | break; |
adamdunkels | ca9ddcb | 2003-03-19 14:13:31 +0000 | [diff] [blame] | 672 | /* s.tagattrptr = 0; |
| 673 | endtagfound();*/ |
| 674 | } |
| 675 | } else if(c == ISO_eq) { |
| 676 | s.minorstate = MINORSTATE_TAGATTRPARAMNQ; |
| 677 | s.tagattrparamptr = 0; |
| 678 | endtagfound(); |
adamdunkels | 269d7be | 2004-09-03 09:55:22 +0000 | [diff] [blame] | 679 | break; |
adamdunkels | ca9ddcb | 2003-03-19 14:13:31 +0000 | [diff] [blame] | 680 | } else { |
| 681 | s.tagattr[s.tagattrptr] = lowercase(c); |
| 682 | ++s.tagattrptr; |
| 683 | /* Check if the "tagattr" field is full. If so, we just eat |
| 684 | up any data left in the tag. */ |
| 685 | if(s.tagattrptr == sizeof(s.tagattr)) { |
| 686 | s.minorstate = MINORSTATE_TAGEND; |
adamdunkels | 269d7be | 2004-09-03 09:55:22 +0000 | [diff] [blame] | 687 | break; |
adamdunkels | ca9ddcb | 2003-03-19 14:13:31 +0000 | [diff] [blame] | 688 | } |
| 689 | } |
adamdunkels | 269d7be | 2004-09-03 09:55:22 +0000 | [diff] [blame] | 690 | } |
| 691 | break; |
| 692 | case MINORSTATE_TAGATTRSPACE: |
| 693 | for(i = 0; i < len; ++i) { |
| 694 | c = data[i]; |
adamdunkels | ca9ddcb | 2003-03-19 14:13:31 +0000 | [diff] [blame] | 695 | if(iswhitespace(c)) { |
| 696 | /* Discard spaces. */ |
| 697 | } else if(c == ISO_eq) { |
| 698 | s.minorstate = MINORSTATE_TAGATTRPARAMNQ; |
| 699 | s.tagattrparamptr = 0; |
| 700 | endtagfound(); |
| 701 | parse_tag(); |
adamdunkels | 269d7be | 2004-09-03 09:55:22 +0000 | [diff] [blame] | 702 | break; |
adamdunkels | ca9ddcb | 2003-03-19 14:13:31 +0000 | [diff] [blame] | 703 | } else { |
| 704 | s.tagattr[0] = lowercase(c); |
| 705 | s.tagattrptr = 1; |
| 706 | s.minorstate = MINORSTATE_TAGATTR; |
adamdunkels | 269d7be | 2004-09-03 09:55:22 +0000 | [diff] [blame] | 707 | break; |
adamdunkels | ca9ddcb | 2003-03-19 14:13:31 +0000 | [diff] [blame] | 708 | } |
adamdunkels | 269d7be | 2004-09-03 09:55:22 +0000 | [diff] [blame] | 709 | } |
| 710 | break; |
| 711 | case MINORSTATE_TAGATTRPARAMNQ: |
| 712 | /* We are parsing the "tag attr parameter", i.e., the link part |
| 713 | in <a href="link">. */ |
| 714 | for(i = 0; i < len; ++i) { |
| 715 | c = data[i]; |
adamdunkels | ca9ddcb | 2003-03-19 14:13:31 +0000 | [diff] [blame] | 716 | if(c == ISO_gt) { |
| 717 | /* Full tag found. */ |
| 718 | endtagfound(); |
| 719 | parse_tag(); |
| 720 | s.minorstate = MINORSTATE_TEXT; |
| 721 | s.tagattrptr = 0; |
| 722 | endtagfound(); |
adamdunkels | 269d7be | 2004-09-03 09:55:22 +0000 | [diff] [blame] | 723 | parse_tag(); |
adamdunkels | ca9ddcb | 2003-03-19 14:13:31 +0000 | [diff] [blame] | 724 | s.tagptr = 0; |
| 725 | endtagfound(); |
adamdunkels | 269d7be | 2004-09-03 09:55:22 +0000 | [diff] [blame] | 726 | break; |
adamdunkels | ca9ddcb | 2003-03-19 14:13:31 +0000 | [diff] [blame] | 727 | } else if(iswhitespace(c) && |
| 728 | s.tagattrparamptr == 0) { |
| 729 | /* Discard leading spaces. */ |
| 730 | } else if((c == ISO_citation || |
| 731 | c == ISO_citation2) && |
| 732 | s.tagattrparamptr == 0) { |
| 733 | s.minorstate = MINORSTATE_TAGATTRPARAM; |
| 734 | s.quotechar = c; |
| 735 | PRINTF(("tag attr param q found\n")); |
adamdunkels | 269d7be | 2004-09-03 09:55:22 +0000 | [diff] [blame] | 736 | break; |
adamdunkels | ca9ddcb | 2003-03-19 14:13:31 +0000 | [diff] [blame] | 737 | } else if(iswhitespace(c)) { |
| 738 | PRINTF(("Non-leading space found at %d\n", |
| 739 | s.tagattrparamptr)); |
| 740 | /* Stop parsing if a non-leading space was found */ |
| 741 | endtagfound(); |
| 742 | parse_tag(); |
| 743 | |
| 744 | s.minorstate = MINORSTATE_TAGATTR; |
| 745 | s.tagattrptr = 0; |
| 746 | endtagfound(); |
adamdunkels | 269d7be | 2004-09-03 09:55:22 +0000 | [diff] [blame] | 747 | break; |
adamdunkels | ca9ddcb | 2003-03-19 14:13:31 +0000 | [diff] [blame] | 748 | } else { |
| 749 | s.tagattrparam[s.tagattrparamptr] = c; |
| 750 | ++s.tagattrparamptr; |
| 751 | /* Check if the "tagattr" field is full. If so, we just eat |
| 752 | up any data left in the tag. */ |
| 753 | if(s.tagattrparamptr >= sizeof(s.tagattrparam) - 1) { |
| 754 | s.minorstate = MINORSTATE_TAGEND; |
adamdunkels | 269d7be | 2004-09-03 09:55:22 +0000 | [diff] [blame] | 755 | break; |
adamdunkels | ca9ddcb | 2003-03-19 14:13:31 +0000 | [diff] [blame] | 756 | } |
| 757 | } |
adamdunkels | 269d7be | 2004-09-03 09:55:22 +0000 | [diff] [blame] | 758 | } |
| 759 | break; |
| 760 | case MINORSTATE_TAGATTRPARAM: |
| 761 | /* We are parsing the "tag attr parameter", i.e., the link |
| 762 | part in <a href="link">. */ |
| 763 | for(i = 0; i < len; ++i) { |
| 764 | c = data[i]; |
adamdunkels | ca9ddcb | 2003-03-19 14:13:31 +0000 | [diff] [blame] | 765 | if(c == s.quotechar) { |
| 766 | /* Found end of tag attr parameter. */ |
| 767 | endtagfound(); |
| 768 | parse_tag(); |
adamdunkels | 269d7be | 2004-09-03 09:55:22 +0000 | [diff] [blame] | 769 | |
adamdunkels | ca9ddcb | 2003-03-19 14:13:31 +0000 | [diff] [blame] | 770 | s.minorstate = MINORSTATE_TAGATTR; |
| 771 | s.tagattrptr = 0; |
| 772 | endtagfound(); |
adamdunkels | 269d7be | 2004-09-03 09:55:22 +0000 | [diff] [blame] | 773 | break; |
adamdunkels | ca9ddcb | 2003-03-19 14:13:31 +0000 | [diff] [blame] | 774 | } else { |
| 775 | if(iswhitespace(c)) { |
adamdunkels | 269d7be | 2004-09-03 09:55:22 +0000 | [diff] [blame] | 776 | s.tagattrparam[s.tagattrparamptr] = ISO_space; |
| 777 | } else { |
| 778 | s.tagattrparam[s.tagattrparamptr] = c; |
adamdunkels | ca9ddcb | 2003-03-19 14:13:31 +0000 | [diff] [blame] | 779 | } |
adamdunkels | 269d7be | 2004-09-03 09:55:22 +0000 | [diff] [blame] | 780 | |
adamdunkels | ca9ddcb | 2003-03-19 14:13:31 +0000 | [diff] [blame] | 781 | ++s.tagattrparamptr; |
| 782 | /* Check if the "tagattr" field is full. If so, we just eat |
| 783 | up any data left in the tag. */ |
| 784 | if(s.tagattrparamptr >= sizeof(s.tagattrparam) - 1) { |
| 785 | s.minorstate = MINORSTATE_TAGEND; |
adamdunkels | 269d7be | 2004-09-03 09:55:22 +0000 | [diff] [blame] | 786 | break; |
adamdunkels | ca9ddcb | 2003-03-19 14:13:31 +0000 | [diff] [blame] | 787 | } |
| 788 | } |
adamdunkels | 269d7be | 2004-09-03 09:55:22 +0000 | [diff] [blame] | 789 | } |
| 790 | break; |
| 791 | case MINORSTATE_HTMLCOMMENT: |
| 792 | for(i = 0; i < len; ++i) { |
| 793 | c = data[i]; |
adamdunkels | ca9ddcb | 2003-03-19 14:13:31 +0000 | [diff] [blame] | 794 | if(c == ISO_dash) { |
| 795 | ++s.tagptr; |
| 796 | } else if(c == ISO_gt && s.tagptr > 0) { |
| 797 | PRINTF(("Comment done.\n")); |
| 798 | s.minorstate = MINORSTATE_TEXT; |
adamdunkels | 269d7be | 2004-09-03 09:55:22 +0000 | [diff] [blame] | 799 | break; |
adamdunkels | ca9ddcb | 2003-03-19 14:13:31 +0000 | [diff] [blame] | 800 | } else { |
| 801 | s.tagptr = 0; |
| 802 | } |
adamdunkels | 269d7be | 2004-09-03 09:55:22 +0000 | [diff] [blame] | 803 | } |
| 804 | break; |
| 805 | case MINORSTATE_TAGEND: |
| 806 | /* Discard characters until a '>' is seen. */ |
| 807 | for(i = 0; i < len; ++i) { |
| 808 | if(data[i] == ISO_gt) { |
adamdunkels | ca9ddcb | 2003-03-19 14:13:31 +0000 | [diff] [blame] | 809 | s.minorstate = MINORSTATE_TEXT; |
| 810 | s.tagattrptr = 0; |
| 811 | endtagfound(); |
| 812 | parse_tag(); |
adamdunkels | 269d7be | 2004-09-03 09:55:22 +0000 | [diff] [blame] | 813 | break; |
adamdunkels | ca9ddcb | 2003-03-19 14:13:31 +0000 | [diff] [blame] | 814 | } |
adamdunkels | ca9ddcb | 2003-03-19 14:13:31 +0000 | [diff] [blame] | 815 | } |
adamdunkels | 269d7be | 2004-09-03 09:55:22 +0000 | [diff] [blame] | 816 | break; |
| 817 | default: |
| 818 | i = 0; |
| 819 | break; |
adamdunkels | ca9ddcb | 2003-03-19 14:13:31 +0000 | [diff] [blame] | 820 | } |
adamdunkels | 269d7be | 2004-09-03 09:55:22 +0000 | [diff] [blame] | 821 | if(i >= len) { |
| 822 | return len; |
| 823 | } |
| 824 | return i + 1; |
| 825 | } |
| 826 | /*-----------------------------------------------------------------------------------*/ |
| 827 | void |
| 828 | htmlparser_parse(char *data, u16_t datalen) |
| 829 | { |
| 830 | u16_t plen; |
| 831 | |
| 832 | while(datalen > 0) { |
| 833 | if(datalen > 255) { |
| 834 | plen = parse_word(data, 255); |
| 835 | } else { |
| 836 | plen = parse_word(data, datalen); |
| 837 | } |
| 838 | datalen -= plen; |
| 839 | data += plen; |
| 840 | } |
adamdunkels | ca9ddcb | 2003-03-19 14:13:31 +0000 | [diff] [blame] | 841 | } |
| 842 | /*-----------------------------------------------------------------------------------*/ |