diff options
Diffstat (limited to 'depends/hoedown/src/html.c')
| -rw-r--r-- | depends/hoedown/src/html.c | 754 |
1 files changed, 0 insertions, 754 deletions
diff --git a/depends/hoedown/src/html.c b/depends/hoedown/src/html.c deleted file mode 100644 index 4b18d804..00000000 --- a/depends/hoedown/src/html.c +++ /dev/null @@ -1,754 +0,0 @@ -#include "hoedown/html.h" - -#include <string.h> -#include <stdlib.h> -#include <stdio.h> -#include <ctype.h> - -#include "hoedown/escape.h" - -#define USE_XHTML(opt) (opt->flags & HOEDOWN_HTML_USE_XHTML) - -hoedown_html_tag -hoedown_html_is_tag(const uint8_t *data, size_t size, const char *tagname) -{ - size_t i; - int closed = 0; - - if (size < 3 || data[0] != '<') - return HOEDOWN_HTML_TAG_NONE; - - i = 1; - - if (data[i] == '/') { - closed = 1; - i++; - } - - for (; i < size; ++i, ++tagname) { - if (*tagname == 0) - break; - - if (data[i] != *tagname) - return HOEDOWN_HTML_TAG_NONE; - } - - if (i == size) - return HOEDOWN_HTML_TAG_NONE; - - if (isspace(data[i]) || data[i] == '>') - return closed ? HOEDOWN_HTML_TAG_CLOSE : HOEDOWN_HTML_TAG_OPEN; - - return HOEDOWN_HTML_TAG_NONE; -} - -static void escape_html(hoedown_buffer *ob, const uint8_t *source, size_t length) -{ - hoedown_escape_html(ob, source, length, 0); -} - -static void escape_href(hoedown_buffer *ob, const uint8_t *source, size_t length) -{ - hoedown_escape_href(ob, source, length); -} - -/******************** - * GENERIC RENDERER * - ********************/ -static int -rndr_autolink(hoedown_buffer *ob, const hoedown_buffer *link, hoedown_autolink_type type, const hoedown_renderer_data *data) -{ - hoedown_html_renderer_state *state = data->opaque; - - if (!link || !link->size) - return 0; - - HOEDOWN_BUFPUTSL(ob, "<a href=\""); - if (type == HOEDOWN_AUTOLINK_EMAIL) - HOEDOWN_BUFPUTSL(ob, "mailto:"); - escape_href(ob, link->data, link->size); - - if (state->link_attributes) { - hoedown_buffer_putc(ob, '\"'); - state->link_attributes(ob, link, data); - hoedown_buffer_putc(ob, '>'); - } else { - HOEDOWN_BUFPUTSL(ob, "\">"); - } - - /* - * Pretty printing: if we get an email address as - * an actual URI, e.g. `mailto:foo@bar.com`, we don't - * want to print the `mailto:` prefix - */ - if (hoedown_buffer_prefix(link, "mailto:") == 0) { - escape_html(ob, link->data + 7, link->size - 7); - } else { - escape_html(ob, link->data, link->size); - } - - HOEDOWN_BUFPUTSL(ob, "</a>"); - - return 1; -} - -static void -rndr_blockcode(hoedown_buffer *ob, const hoedown_buffer *text, const hoedown_buffer *lang, const hoedown_renderer_data *data) -{ - if (ob->size) hoedown_buffer_putc(ob, '\n'); - - if (lang) { - HOEDOWN_BUFPUTSL(ob, "<pre><code class=\"language-"); - escape_html(ob, lang->data, lang->size); - HOEDOWN_BUFPUTSL(ob, "\">"); - } else { - HOEDOWN_BUFPUTSL(ob, "<pre><code>"); - } - - if (text) - escape_html(ob, text->data, text->size); - - HOEDOWN_BUFPUTSL(ob, "</code></pre>\n"); -} - -static void -rndr_blockquote(hoedown_buffer *ob, const hoedown_buffer *content, const hoedown_renderer_data *data) -{ - if (ob->size) hoedown_buffer_putc(ob, '\n'); - HOEDOWN_BUFPUTSL(ob, "<blockquote>\n"); - if (content) hoedown_buffer_put(ob, content->data, content->size); - HOEDOWN_BUFPUTSL(ob, "</blockquote>\n"); -} - -static int -rndr_codespan(hoedown_buffer *ob, const hoedown_buffer *text, const hoedown_renderer_data *data) -{ - HOEDOWN_BUFPUTSL(ob, "<code>"); - if (text) escape_html(ob, text->data, text->size); - HOEDOWN_BUFPUTSL(ob, "</code>"); - return 1; -} - -static int -rndr_strikethrough(hoedown_buffer *ob, const hoedown_buffer *content, const hoedown_renderer_data *data) -{ - if (!content || !content->size) - return 0; - - HOEDOWN_BUFPUTSL(ob, "<del>"); - hoedown_buffer_put(ob, content->data, content->size); - HOEDOWN_BUFPUTSL(ob, "</del>"); - return 1; -} - -static int -rndr_double_emphasis(hoedown_buffer *ob, const hoedown_buffer *content, const hoedown_renderer_data *data) -{ - if (!content || !content->size) - return 0; - - HOEDOWN_BUFPUTSL(ob, "<strong>"); - hoedown_buffer_put(ob, content->data, content->size); - HOEDOWN_BUFPUTSL(ob, "</strong>"); - - return 1; -} - -static int -rndr_emphasis(hoedown_buffer *ob, const hoedown_buffer *content, const hoedown_renderer_data *data) -{ - if (!content || !content->size) return 0; - HOEDOWN_BUFPUTSL(ob, "<em>"); - if (content) hoedown_buffer_put(ob, content->data, content->size); - HOEDOWN_BUFPUTSL(ob, "</em>"); - return 1; -} - -static int -rndr_underline(hoedown_buffer *ob, const hoedown_buffer *content, const hoedown_renderer_data *data) -{ - if (!content || !content->size) - return 0; - - HOEDOWN_BUFPUTSL(ob, "<u>"); - hoedown_buffer_put(ob, content->data, content->size); - HOEDOWN_BUFPUTSL(ob, "</u>"); - - return 1; -} - -static int -rndr_highlight(hoedown_buffer *ob, const hoedown_buffer *content, const hoedown_renderer_data *data) -{ - if (!content || !content->size) - return 0; - - HOEDOWN_BUFPUTSL(ob, "<mark>"); - hoedown_buffer_put(ob, content->data, content->size); - HOEDOWN_BUFPUTSL(ob, "</mark>"); - - return 1; -} - -static int -rndr_quote(hoedown_buffer *ob, const hoedown_buffer *content, const hoedown_renderer_data *data) -{ - if (!content || !content->size) - return 0; - - HOEDOWN_BUFPUTSL(ob, "<q>"); - hoedown_buffer_put(ob, content->data, content->size); - HOEDOWN_BUFPUTSL(ob, "</q>"); - - return 1; -} - -static int -rndr_linebreak(hoedown_buffer *ob, const hoedown_renderer_data *data) -{ - hoedown_html_renderer_state *state = data->opaque; - hoedown_buffer_puts(ob, USE_XHTML(state) ? "<br/>\n" : "<br>\n"); - return 1; -} - -static void -rndr_header(hoedown_buffer *ob, const hoedown_buffer *content, int level, const hoedown_renderer_data *data) -{ - hoedown_html_renderer_state *state = data->opaque; - - if (ob->size) - hoedown_buffer_putc(ob, '\n'); - - if (level <= state->toc_data.nesting_level) - hoedown_buffer_printf(ob, "<h%d id=\"toc_%d\">", level, state->toc_data.header_count++); - else - hoedown_buffer_printf(ob, "<h%d>", level); - - if (content) hoedown_buffer_put(ob, content->data, content->size); - hoedown_buffer_printf(ob, "</h%d>\n", level); -} - -static int -rndr_link(hoedown_buffer *ob, const hoedown_buffer *content, const hoedown_buffer *link, const hoedown_buffer *title, const hoedown_renderer_data *data) -{ - hoedown_html_renderer_state *state = data->opaque; - - HOEDOWN_BUFPUTSL(ob, "<a href=\""); - - if (link && link->size) - escape_href(ob, link->data, link->size); - - if (title && title->size) { - HOEDOWN_BUFPUTSL(ob, "\" title=\""); - escape_html(ob, title->data, title->size); - } - - if (state->link_attributes) { - hoedown_buffer_putc(ob, '\"'); - state->link_attributes(ob, link, data); - hoedown_buffer_putc(ob, '>'); - } else { - HOEDOWN_BUFPUTSL(ob, "\">"); - } - - if (content && content->size) hoedown_buffer_put(ob, content->data, content->size); - HOEDOWN_BUFPUTSL(ob, "</a>"); - return 1; -} - -static void -rndr_list(hoedown_buffer *ob, const hoedown_buffer *content, hoedown_list_flags flags, const hoedown_renderer_data *data) -{ - if (ob->size) hoedown_buffer_putc(ob, '\n'); - hoedown_buffer_put(ob, (const uint8_t *)(flags & HOEDOWN_LIST_ORDERED ? "<ol>\n" : "<ul>\n"), 5); - if (content) hoedown_buffer_put(ob, content->data, content->size); - hoedown_buffer_put(ob, (const uint8_t *)(flags & HOEDOWN_LIST_ORDERED ? "</ol>\n" : "</ul>\n"), 6); -} - -static void -rndr_listitem(hoedown_buffer *ob, const hoedown_buffer *content, hoedown_list_flags flags, const hoedown_renderer_data *data) -{ - HOEDOWN_BUFPUTSL(ob, "<li>"); - if (content) { - size_t size = content->size; - while (size && content->data[size - 1] == '\n') - size--; - - hoedown_buffer_put(ob, content->data, size); - } - HOEDOWN_BUFPUTSL(ob, "</li>\n"); -} - -static void -rndr_paragraph(hoedown_buffer *ob, const hoedown_buffer *content, const hoedown_renderer_data *data) -{ - hoedown_html_renderer_state *state = data->opaque; - size_t i = 0; - - if (ob->size) hoedown_buffer_putc(ob, '\n'); - - if (!content || !content->size) - return; - - while (i < content->size && isspace(content->data[i])) i++; - - if (i == content->size) - return; - - HOEDOWN_BUFPUTSL(ob, "<p>"); - if (state->flags & HOEDOWN_HTML_HARD_WRAP) { - size_t org; - while (i < content->size) { - org = i; - while (i < content->size && content->data[i] != '\n') - i++; - - if (i > org) - hoedown_buffer_put(ob, content->data + org, i - org); - - /* - * do not insert a line break if this newline - * is the last character on the paragraph - */ - if (i >= content->size - 1) - break; - - rndr_linebreak(ob, data); - i++; - } - } else { - hoedown_buffer_put(ob, content->data + i, content->size - i); - } - HOEDOWN_BUFPUTSL(ob, "</p>\n"); -} - -static void -rndr_raw_block(hoedown_buffer *ob, const hoedown_buffer *text, const hoedown_renderer_data *data) -{ - size_t org, sz; - - if (!text) - return; - - /* FIXME: Do we *really* need to trim the HTML? How does that make a difference? */ - sz = text->size; - while (sz > 0 && text->data[sz - 1] == '\n') - sz--; - - org = 0; - while (org < sz && text->data[org] == '\n') - org++; - - if (org >= sz) - return; - - if (ob->size) - hoedown_buffer_putc(ob, '\n'); - - hoedown_buffer_put(ob, text->data + org, sz - org); - hoedown_buffer_putc(ob, '\n'); -} - -static int -rndr_triple_emphasis(hoedown_buffer *ob, const hoedown_buffer *content, const hoedown_renderer_data *data) -{ - if (!content || !content->size) return 0; - HOEDOWN_BUFPUTSL(ob, "<strong><em>"); - hoedown_buffer_put(ob, content->data, content->size); - HOEDOWN_BUFPUTSL(ob, "</em></strong>"); - return 1; -} - -static void -rndr_hrule(hoedown_buffer *ob, const hoedown_renderer_data *data) -{ - hoedown_html_renderer_state *state = data->opaque; - if (ob->size) hoedown_buffer_putc(ob, '\n'); - hoedown_buffer_puts(ob, USE_XHTML(state) ? "<hr/>\n" : "<hr>\n"); -} - -static int -rndr_image(hoedown_buffer *ob, const hoedown_buffer *link, const hoedown_buffer *title, const hoedown_buffer *alt, const hoedown_renderer_data *data) -{ - hoedown_html_renderer_state *state = data->opaque; - if (!link || !link->size) return 0; - - HOEDOWN_BUFPUTSL(ob, "<img src=\""); - escape_href(ob, link->data, link->size); - HOEDOWN_BUFPUTSL(ob, "\" alt=\""); - - if (alt && alt->size) - escape_html(ob, alt->data, alt->size); - - if (title && title->size) { - HOEDOWN_BUFPUTSL(ob, "\" title=\""); - escape_html(ob, title->data, title->size); } - - hoedown_buffer_puts(ob, USE_XHTML(state) ? "\"/>" : "\">"); - return 1; -} - -static int -rndr_raw_html(hoedown_buffer *ob, const hoedown_buffer *text, const hoedown_renderer_data *data) -{ - hoedown_html_renderer_state *state = data->opaque; - - /* ESCAPE overrides SKIP_HTML. It doesn't look to see if - * there are any valid tags, just escapes all of them. */ - if((state->flags & HOEDOWN_HTML_ESCAPE) != 0) { - escape_html(ob, text->data, text->size); - return 1; - } - - if ((state->flags & HOEDOWN_HTML_SKIP_HTML) != 0) - return 1; - - hoedown_buffer_put(ob, text->data, text->size); - return 1; -} - -static void -rndr_table(hoedown_buffer *ob, const hoedown_buffer *content, const hoedown_renderer_data *data) -{ - if (ob->size) hoedown_buffer_putc(ob, '\n'); - HOEDOWN_BUFPUTSL(ob, "<table>\n"); - hoedown_buffer_put(ob, content->data, content->size); - HOEDOWN_BUFPUTSL(ob, "</table>\n"); -} - -static void -rndr_table_header(hoedown_buffer *ob, const hoedown_buffer *content, const hoedown_renderer_data *data) -{ - if (ob->size) hoedown_buffer_putc(ob, '\n'); - HOEDOWN_BUFPUTSL(ob, "<thead>\n"); - hoedown_buffer_put(ob, content->data, content->size); - HOEDOWN_BUFPUTSL(ob, "</thead>\n"); -} - -static void -rndr_table_body(hoedown_buffer *ob, const hoedown_buffer *content, const hoedown_renderer_data *data) -{ - if (ob->size) hoedown_buffer_putc(ob, '\n'); - HOEDOWN_BUFPUTSL(ob, "<tbody>\n"); - hoedown_buffer_put(ob, content->data, content->size); - HOEDOWN_BUFPUTSL(ob, "</tbody>\n"); -} - -static void -rndr_tablerow(hoedown_buffer *ob, const hoedown_buffer *content, const hoedown_renderer_data *data) -{ - HOEDOWN_BUFPUTSL(ob, "<tr>\n"); - if (content) hoedown_buffer_put(ob, content->data, content->size); - HOEDOWN_BUFPUTSL(ob, "</tr>\n"); -} - -static void -rndr_tablecell(hoedown_buffer *ob, const hoedown_buffer *content, hoedown_table_flags flags, const hoedown_renderer_data *data) -{ - if (flags & HOEDOWN_TABLE_HEADER) { - HOEDOWN_BUFPUTSL(ob, "<th"); - } else { - HOEDOWN_BUFPUTSL(ob, "<td"); - } - - switch (flags & HOEDOWN_TABLE_ALIGNMASK) { - case HOEDOWN_TABLE_ALIGN_CENTER: - HOEDOWN_BUFPUTSL(ob, " style=\"text-align: center\">"); - break; - - case HOEDOWN_TABLE_ALIGN_LEFT: - HOEDOWN_BUFPUTSL(ob, " style=\"text-align: left\">"); - break; - - case HOEDOWN_TABLE_ALIGN_RIGHT: - HOEDOWN_BUFPUTSL(ob, " style=\"text-align: right\">"); - break; - - default: - HOEDOWN_BUFPUTSL(ob, ">"); - } - - if (content) - hoedown_buffer_put(ob, content->data, content->size); - - if (flags & HOEDOWN_TABLE_HEADER) { - HOEDOWN_BUFPUTSL(ob, "</th>\n"); - } else { - HOEDOWN_BUFPUTSL(ob, "</td>\n"); - } -} - -static int -rndr_superscript(hoedown_buffer *ob, const hoedown_buffer *content, const hoedown_renderer_data *data) -{ - if (!content || !content->size) return 0; - HOEDOWN_BUFPUTSL(ob, "<sup>"); - hoedown_buffer_put(ob, content->data, content->size); - HOEDOWN_BUFPUTSL(ob, "</sup>"); - return 1; -} - -static void -rndr_normal_text(hoedown_buffer *ob, const hoedown_buffer *content, const hoedown_renderer_data *data) -{ - if (content) - escape_html(ob, content->data, content->size); -} - -static void -rndr_footnotes(hoedown_buffer *ob, const hoedown_buffer *content, const hoedown_renderer_data *data) -{ - hoedown_html_renderer_state *state = data->opaque; - - if (ob->size) hoedown_buffer_putc(ob, '\n'); - HOEDOWN_BUFPUTSL(ob, "<div class=\"footnotes\">\n"); - hoedown_buffer_puts(ob, USE_XHTML(state) ? "<hr/>\n" : "<hr>\n"); - HOEDOWN_BUFPUTSL(ob, "<ol>\n"); - - if (content) hoedown_buffer_put(ob, content->data, content->size); - - HOEDOWN_BUFPUTSL(ob, "\n</ol>\n</div>\n"); -} - -static void -rndr_footnote_def(hoedown_buffer *ob, const hoedown_buffer *content, unsigned int num, const hoedown_renderer_data *data) -{ - size_t i = 0; - int pfound = 0; - - /* insert anchor at the end of first paragraph block */ - if (content) { - while ((i+3) < content->size) { - if (content->data[i++] != '<') continue; - if (content->data[i++] != '/') continue; - if (content->data[i++] != 'p' && content->data[i] != 'P') continue; - if (content->data[i] != '>') continue; - i -= 3; - pfound = 1; - break; - } - } - - hoedown_buffer_printf(ob, "\n<li id=\"fn%d\">\n", num); - if (pfound) { - hoedown_buffer_put(ob, content->data, i); - hoedown_buffer_printf(ob, " <a href=\"#fnref%d\" rev=\"footnote\">↩</a>", num); - hoedown_buffer_put(ob, content->data + i, content->size - i); - } else if (content) { - hoedown_buffer_put(ob, content->data, content->size); - } - HOEDOWN_BUFPUTSL(ob, "</li>\n"); -} - -static int -rndr_footnote_ref(hoedown_buffer *ob, unsigned int num, const hoedown_renderer_data *data) -{ - hoedown_buffer_printf(ob, "<sup id=\"fnref%d\"><a href=\"#fn%d\" rel=\"footnote\">%d</a></sup>", num, num, num); - return 1; -} - -static int -rndr_math(hoedown_buffer *ob, const hoedown_buffer *text, int displaymode, const hoedown_renderer_data *data) -{ - hoedown_buffer_put(ob, (const uint8_t *)(displaymode ? "\\[" : "\\("), 2); - escape_html(ob, text->data, text->size); - hoedown_buffer_put(ob, (const uint8_t *)(displaymode ? "\\]" : "\\)"), 2); - return 1; -} - -static void -toc_header(hoedown_buffer *ob, const hoedown_buffer *content, int level, const hoedown_renderer_data *data) -{ - hoedown_html_renderer_state *state = data->opaque; - - if (level <= state->toc_data.nesting_level) { - /* set the level offset if this is the first header - * we're parsing for the document */ - if (state->toc_data.current_level == 0) - state->toc_data.level_offset = level - 1; - - level -= state->toc_data.level_offset; - - if (level > state->toc_data.current_level) { - while (level > state->toc_data.current_level) { - HOEDOWN_BUFPUTSL(ob, "<ul>\n<li>\n"); - state->toc_data.current_level++; - } - } else if (level < state->toc_data.current_level) { - HOEDOWN_BUFPUTSL(ob, "</li>\n"); - while (level < state->toc_data.current_level) { - HOEDOWN_BUFPUTSL(ob, "</ul>\n</li>\n"); - state->toc_data.current_level--; - } - HOEDOWN_BUFPUTSL(ob,"<li>\n"); - } else { - HOEDOWN_BUFPUTSL(ob,"</li>\n<li>\n"); - } - - hoedown_buffer_printf(ob, "<a href=\"#toc_%d\">", state->toc_data.header_count++); - if (content) hoedown_buffer_put(ob, content->data, content->size); - HOEDOWN_BUFPUTSL(ob, "</a>\n"); - } -} - -static int -toc_link(hoedown_buffer *ob, const hoedown_buffer *content, const hoedown_buffer *link, const hoedown_buffer *title, const hoedown_renderer_data *data) -{ - if (content && content->size) hoedown_buffer_put(ob, content->data, content->size); - return 1; -} - -static void -toc_finalize(hoedown_buffer *ob, int inline_render, const hoedown_renderer_data *data) -{ - hoedown_html_renderer_state *state; - - if (inline_render) - return; - - state = data->opaque; - - while (state->toc_data.current_level > 0) { - HOEDOWN_BUFPUTSL(ob, "</li>\n</ul>\n"); - state->toc_data.current_level--; - } - - state->toc_data.header_count = 0; -} - -hoedown_renderer * -hoedown_html_toc_renderer_new(int nesting_level) -{ - static const hoedown_renderer cb_default = { - NULL, - - NULL, - NULL, - toc_header, - NULL, - NULL, - NULL, - NULL, - NULL, - NULL, - NULL, - NULL, - NULL, - NULL, - NULL, - NULL, - - NULL, - rndr_codespan, - rndr_double_emphasis, - rndr_emphasis, - rndr_underline, - rndr_highlight, - rndr_quote, - NULL, - NULL, - toc_link, - rndr_triple_emphasis, - rndr_strikethrough, - rndr_superscript, - NULL, - NULL, - NULL, - - NULL, - rndr_normal_text, - - NULL, - toc_finalize - }; - - hoedown_html_renderer_state *state; - hoedown_renderer *renderer; - - /* Prepare the state pointer */ - state = hoedown_malloc(sizeof(hoedown_html_renderer_state)); - memset(state, 0x0, sizeof(hoedown_html_renderer_state)); - - state->toc_data.nesting_level = nesting_level; - - /* Prepare the renderer */ - renderer = hoedown_malloc(sizeof(hoedown_renderer)); - memcpy(renderer, &cb_default, sizeof(hoedown_renderer)); - - renderer->opaque = state; - return renderer; -} - -hoedown_renderer * -hoedown_html_renderer_new(hoedown_html_flags render_flags, int nesting_level) -{ - static const hoedown_renderer cb_default = { - NULL, - - rndr_blockcode, - rndr_blockquote, - rndr_header, - rndr_hrule, - rndr_list, - rndr_listitem, - rndr_paragraph, - rndr_table, - rndr_table_header, - rndr_table_body, - rndr_tablerow, - rndr_tablecell, - rndr_footnotes, - rndr_footnote_def, - rndr_raw_block, - - rndr_autolink, - rndr_codespan, - rndr_double_emphasis, - rndr_emphasis, - rndr_underline, - rndr_highlight, - rndr_quote, - rndr_image, - rndr_linebreak, - rndr_link, - rndr_triple_emphasis, - rndr_strikethrough, - rndr_superscript, - rndr_footnote_ref, - rndr_math, - rndr_raw_html, - - NULL, - rndr_normal_text, - - NULL, - NULL - }; - - hoedown_html_renderer_state *state; - hoedown_renderer *renderer; - - /* Prepare the state pointer */ - state = hoedown_malloc(sizeof(hoedown_html_renderer_state)); - memset(state, 0x0, sizeof(hoedown_html_renderer_state)); - - state->flags = render_flags; - state->toc_data.nesting_level = nesting_level; - - /* Prepare the renderer */ - renderer = hoedown_malloc(sizeof(hoedown_renderer)); - memcpy(renderer, &cb_default, sizeof(hoedown_renderer)); - - if (render_flags & HOEDOWN_HTML_SKIP_HTML || render_flags & HOEDOWN_HTML_ESCAPE) - renderer->blockhtml = NULL; - - renderer->opaque = state; - return renderer; -} - -void -hoedown_html_renderer_free(hoedown_renderer *renderer) -{ - free(renderer->opaque); - free(renderer); -} |