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Optional highlight support

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This commit is contained in:
Sam Soffes 2013-09-19 15:05:49 -05:00 committed by Devin Torres
parent 2e9301b116
commit 0bb213e183
3 changed files with 24 additions and 3 deletions
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15
html/html.c
View file

@ -231,6 +231,19 @@ rndr_underline(struct buf *ob, const struct buf *text, void *opaque)
return 1;
}
static int
rndr_highlight(struct buf *ob, const struct buf *text, void *opaque)
{
if (!text || !text->size)
return 0;
BUFPUTSL(ob, "<mark>");
bufput(ob, text->data, text->size);
BUFPUTSL(ob, "</mark>");
return 1;
}
static int
rndr_linebreak(struct buf *ob, void *opaque)
{
@ -637,6 +650,7 @@ sdhtml_toc_renderer(struct sd_callbacks *callbacks, struct html_renderopt *optio
rndr_double_emphasis,
rndr_emphasis,
rndr_underline,
rndr_highlight,
NULL,
NULL,
toc_link,
@ -682,6 +696,7 @@ sdhtml_renderer(struct sd_callbacks *callbacks, struct html_renderopt *options,
rndr_double_emphasis,
rndr_emphasis,
rndr_underline,
rndr_highlight,
rndr_image,
rndr_linebreak,
rndr_link,

8
src/markdown.c
View file

@ -634,6 +634,8 @@ parse_emph2(struct buf *ob, struct sd_markdown *rndr, uint8_t *data, size_t size
if (c == '~')
r = rndr->cb.strikethrough(ob, work, rndr->opaque);
else if (c == '=')
r = rndr->cb.highlight(ob, work, rndr->opaque);
else
r = rndr->cb.double_emphasis(ob, work, rndr->opaque);
@ -702,7 +704,7 @@ char_emphasis(struct buf *ob, struct sd_markdown *rndr, uint8_t *data, size_t of
if (size > 2 && data[1] != c) {
/* whitespace cannot follow an opening emphasis;
* strikethrough only takes two characters '~~' */
if (c == '~' || _isspace(data[1]) || (ret = parse_emph1(ob, rndr, data + 1, size - 1, c)) == 0)
if (c == '~' || c == '=' || _isspace(data[1]) || (ret = parse_emph1(ob, rndr, data + 1, size - 1, c)) == 0)
return 0;
return ret + 1;
@ -716,7 +718,7 @@ char_emphasis(struct buf *ob, struct sd_markdown *rndr, uint8_t *data, size_t of
}
if (size > 4 && data[1] == c && data[2] == c && data[3] != c) {
if (c == '~' || _isspace(data[3]) || (ret = parse_emph3(ob, rndr, data + 3, size - 3, c)) == 0)
if (c == '~' || c == '=' || _isspace(data[3]) || (ret = parse_emph3(ob, rndr, data + 3, size - 3, c)) == 0)
return 0;
return ret + 3;
@ -2703,6 +2705,8 @@ sd_markdown_new(
md->active_char['_'] = MD_CHAR_EMPHASIS;
if (extensions & MKDEXT_STRIKETHROUGH)
md->active_char['~'] = MD_CHAR_EMPHASIS;
if (extensions & MKDEXT_HIGHLIGHT)
md->active_char['='] = MD_CHAR_EMPHASIS;
}
if (md->cb.codespan)

4
src/markdown.h
View file

@ -61,7 +61,8 @@ enum mkd_extensions {
MKDEXT_SUPERSCRIPT = (1 << 7),
MKDEXT_LAX_SPACING = (1 << 8),
MKDEXT_DISABLE_INDENTED_CODE = (1 << 9),
MKDEXT_FOOTNOTES = (1 << 10),
MKDEXT_HIGHLIGHT = (1 << 10),
MKDEXT_FOOTNOTES = (1 << 11)
};
/* sd_callbacks - functions for rendering parsed data */
@ -87,6 +88,7 @@ struct sd_callbacks {
int (*double_emphasis)(struct buf *ob, const struct buf *text, void *opaque);
int (*emphasis)(struct buf *ob, const struct buf *text, void *opaque);
int (*underline)(struct buf *ob, const struct buf *text, void *opaque);
int (*highlight)(struct buf *ob, const struct buf *text, void *opaque);
int (*image)(struct buf *ob, const struct buf *link, const struct buf *title, const struct buf *alt, void *opaque);
int (*linebreak)(struct buf *ob, void *opaque);
int (*link)(struct buf *ob, const struct buf *link, const struct buf *title, const struct buf *content, void *opaque);