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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 3584 | sourcerer | 1 | /* |
| 2 | * This file is part of Hubbub. |
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| 3 | * Licensed under the MIT License, |
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| 4 | * http://www.opensource.org/licenses/mit-license.php |
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| 5 | * Copyright 2008 John-Mark Bell |
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| 6 | */ |
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| 7 | |||
| 8 | #include |
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| 9 | #include |
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| 10 | |||
| 11 | #include "treebuilder/modes.h" |
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| 12 | #include "treebuilder/internal.h" |
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| 13 | #include "treebuilder/treebuilder.h" |
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| 14 | #include "utils/utils.h" |
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| 15 | |||
| 16 | |||
| 17 | /** |
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| 18 | * Handle token in "before html" insertion mode |
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| 19 | * |
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| 20 | * \param treebuilder The treebuilder instance |
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| 21 | * \param token The token to handle |
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| 22 | * \return True to reprocess token, false otherwise |
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| 23 | */ |
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| 24 | hubbub_error handle_before_html(hubbub_treebuilder *treebuilder, |
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| 25 | const hubbub_token *token) |
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| 26 | { |
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| 27 | hubbub_error err = HUBBUB_OK; |
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| 28 | bool handled = false; |
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| 29 | |||
| 30 | switch (token->type) { |
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| 31 | case HUBBUB_TOKEN_DOCTYPE: |
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| 32 | /** \todo parse error */ |
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| 33 | break; |
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| 34 | case HUBBUB_TOKEN_COMMENT: |
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| 35 | err = process_comment_append(treebuilder, token, |
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| 36 | treebuilder->context.document); |
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| 37 | break; |
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| 38 | case HUBBUB_TOKEN_CHARACTER: |
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| 39 | err = process_characters_expect_whitespace(treebuilder, |
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| 40 | token, false); |
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| 41 | break; |
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| 42 | case HUBBUB_TOKEN_START_TAG: |
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| 43 | { |
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| 44 | element_type type = element_type_from_name(treebuilder, |
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| 45 | &token->data.tag.name); |
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| 46 | |||
| 47 | if (type == HTML) { |
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| 48 | handled = true; |
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| 49 | } else { |
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| 50 | err = HUBBUB_REPROCESS; |
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| 51 | } |
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| 52 | } |
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| 53 | break; |
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| 54 | case HUBBUB_TOKEN_END_TAG: |
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| 55 | case HUBBUB_TOKEN_EOF: |
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| 56 | err = HUBBUB_REPROCESS; |
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| 57 | break; |
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| 58 | } |
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| 59 | |||
| 60 | |||
| 61 | if (handled || err == HUBBUB_REPROCESS) { |
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| 62 | hubbub_error e; |
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| 63 | void *html, *appended; |
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| 64 | |||
| 65 | /* We can't use insert_element() here, as it assumes |
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| 66 | * that we're inserting into current_node. There is |
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| 67 | * no current_node to insert into at this point so |
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| 68 | * we get to do it manually. */ |
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| 69 | |||
| 70 | if (err == HUBBUB_REPROCESS) { |
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| 71 | /* Need to manufacture html element */ |
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| 72 | hubbub_tag tag; |
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| 73 | |||
| 74 | tag.ns = HUBBUB_NS_HTML; |
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| 75 | tag.name.ptr = (const uint8_t *) "html"; |
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| 76 | tag.name.len = SLEN("html"); |
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| 77 | |||
| 78 | tag.n_attributes = 0; |
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| 79 | tag.attributes = NULL; |
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| 80 | |||
| 81 | e = treebuilder->tree_handler->create_element( |
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| 82 | treebuilder->tree_handler->ctx, |
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| 83 | &tag, &html); |
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| 84 | } else { |
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| 85 | e = treebuilder->tree_handler->create_element( |
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| 86 | treebuilder->tree_handler->ctx, |
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| 87 | &token->data.tag, &html); |
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| 88 | } |
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| 89 | |||
| 90 | if (e != HUBBUB_OK) |
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| 91 | return e; |
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| 92 | |||
| 93 | e = treebuilder->tree_handler->append_child( |
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| 94 | treebuilder->tree_handler->ctx, |
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| 95 | treebuilder->context.document, |
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| 96 | html, &appended); |
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| 97 | |||
| 98 | treebuilder->tree_handler->unref_node( |
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| 99 | treebuilder->tree_handler->ctx, |
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| 100 | html); |
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| 101 | |||
| 102 | if (e != HUBBUB_OK) |
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| 103 | return e; |
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| 104 | |||
| 105 | /* We can't use element_stack_push() here, as it |
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| 106 | * assumes that current_node is pointing at the index |
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| 107 | * before the one to insert at. For the first entry in |
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| 108 | * the stack, this does not hold so we must insert |
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| 109 | * manually. */ |
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| 110 | treebuilder->context.element_stack[0].type = HTML; |
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| 111 | treebuilder->context.element_stack[0].node = appended; |
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| 112 | treebuilder->context.current_node = 0; |
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| 113 | |||
| 114 | /** \todo cache selection algorithm */ |
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| 115 | |||
| 116 | treebuilder->context.mode = BEFORE_HEAD; |
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| 117 | } |
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| 118 | |||
| 119 | return err; |
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| 120 | } |
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| 121 |