summaryrefslogtreecommitdiffstats
path: root/depends/hoedown/src/html_smartypants.c
diff options
context:
space:
mode:
Diffstat (limited to 'depends/hoedown/src/html_smartypants.c')
-rw-r--r--depends/hoedown/src/html_smartypants.c435
1 files changed, 0 insertions, 435 deletions
diff --git a/depends/hoedown/src/html_smartypants.c b/depends/hoedown/src/html_smartypants.c
deleted file mode 100644
index e24b6bf0..00000000
--- a/depends/hoedown/src/html_smartypants.c
+++ /dev/null
@@ -1,435 +0,0 @@
-#include "hoedown/html.h"
-
-#include <string.h>
-#include <stdlib.h>
-#include <stdio.h>
-#include <ctype.h>
-
-#ifdef _MSC_VER
-#define snprintf _snprintf
-#endif
-
-struct smartypants_data {
- int in_squote;
- int in_dquote;
-};
-
-static size_t smartypants_cb__ltag(hoedown_buffer *ob, struct smartypants_data *smrt, uint8_t previous_char, const uint8_t *text, size_t size);
-static size_t smartypants_cb__dquote(hoedown_buffer *ob, struct smartypants_data *smrt, uint8_t previous_char, const uint8_t *text, size_t size);
-static size_t smartypants_cb__amp(hoedown_buffer *ob, struct smartypants_data *smrt, uint8_t previous_char, const uint8_t *text, size_t size);
-static size_t smartypants_cb__period(hoedown_buffer *ob, struct smartypants_data *smrt, uint8_t previous_char, const uint8_t *text, size_t size);
-static size_t smartypants_cb__number(hoedown_buffer *ob, struct smartypants_data *smrt, uint8_t previous_char, const uint8_t *text, size_t size);
-static size_t smartypants_cb__dash(hoedown_buffer *ob, struct smartypants_data *smrt, uint8_t previous_char, const uint8_t *text, size_t size);
-static size_t smartypants_cb__parens(hoedown_buffer *ob, struct smartypants_data *smrt, uint8_t previous_char, const uint8_t *text, size_t size);
-static size_t smartypants_cb__squote(hoedown_buffer *ob, struct smartypants_data *smrt, uint8_t previous_char, const uint8_t *text, size_t size);
-static size_t smartypants_cb__backtick(hoedown_buffer *ob, struct smartypants_data *smrt, uint8_t previous_char, const uint8_t *text, size_t size);
-static size_t smartypants_cb__escape(hoedown_buffer *ob, struct smartypants_data *smrt, uint8_t previous_char, const uint8_t *text, size_t size);
-
-static size_t (*smartypants_cb_ptrs[])
- (hoedown_buffer *, struct smartypants_data *, uint8_t, const uint8_t *, size_t) =
-{
- NULL, /* 0 */
- smartypants_cb__dash, /* 1 */
- smartypants_cb__parens, /* 2 */
- smartypants_cb__squote, /* 3 */
- smartypants_cb__dquote, /* 4 */
- smartypants_cb__amp, /* 5 */
- smartypants_cb__period, /* 6 */
- smartypants_cb__number, /* 7 */
- smartypants_cb__ltag, /* 8 */
- smartypants_cb__backtick, /* 9 */
- smartypants_cb__escape, /* 10 */
-};
-
-static const uint8_t smartypants_cb_chars[UINT8_MAX+1] = {
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 4, 0, 0, 0, 5, 3, 2, 0, 0, 0, 0, 1, 6, 0,
- 0, 7, 0, 7, 0, 0, 0, 0, 0, 0, 0, 0, 8, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 10, 0, 0, 0,
- 9, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-};
-
-static int
-word_boundary(uint8_t c)
-{
- return c == 0 || isspace(c) || ispunct(c);
-}
-
-/*
- If 'text' begins with any kind of single quote (e.g. "'" or "&apos;" etc.),
- returns the length of the sequence of characters that makes up the single-
- quote. Otherwise, returns zero.
-*/
-static size_t
-squote_len(const uint8_t *text, size_t size)
-{
- static char* single_quote_list[] = { "'", "&#39;", "&#x27;", "&apos;", NULL };
- char** p;
-
- for (p = single_quote_list; *p; ++p) {
- size_t len = strlen(*p);
- if (size >= len && memcmp(text, *p, len) == 0) {
- return len;
- }
- }
-
- return 0;
-}
-
-/* Converts " or ' at very beginning or end of a word to left or right quote */
-static int
-smartypants_quotes(hoedown_buffer *ob, uint8_t previous_char, uint8_t next_char, uint8_t quote, int *is_open)
-{
- char ent[8];
-
- if (*is_open && !word_boundary(next_char))
- return 0;
-
- if (!(*is_open) && !word_boundary(previous_char))
- return 0;
-
- snprintf(ent, sizeof(ent), "&%c%cquo;", (*is_open) ? 'r' : 'l', quote);
- *is_open = !(*is_open);
- hoedown_buffer_puts(ob, ent);
- return 1;
-}
-
-/*
- Converts ' to left or right single quote; but the initial ' might be in
- different forms, e.g. &apos; or &#39; or &#x27;.
- 'squote_text' points to the original single quote, and 'squote_size' is its length.
- 'text' points at the last character of the single-quote, e.g. ' or ;
-*/
-static size_t
-smartypants_squote(hoedown_buffer *ob, struct smartypants_data *smrt, uint8_t previous_char, const uint8_t *text, size_t size,
- const uint8_t *squote_text, size_t squote_size)
-{
- if (size >= 2) {
- uint8_t t1 = tolower(text[1]);
- size_t next_squote_len = squote_len(text+1, size-1);
-
- /* convert '' to &ldquo; or &rdquo; */
- if (next_squote_len > 0) {
- uint8_t next_char = (size > 1+next_squote_len) ? text[1+next_squote_len] : 0;
- if (smartypants_quotes(ob, previous_char, next_char, 'd', &smrt->in_dquote))
- return next_squote_len;
- }
-
- /* Tom's, isn't, I'm, I'd */
- if ((t1 == 's' || t1 == 't' || t1 == 'm' || t1 == 'd') &&
- (size == 3 || word_boundary(text[2]))) {
- HOEDOWN_BUFPUTSL(ob, "&rsquo;");
- return 0;
- }
-
- /* you're, you'll, you've */
- if (size >= 3) {
- uint8_t t2 = tolower(text[2]);
-
- if (((t1 == 'r' && t2 == 'e') ||
- (t1 == 'l' && t2 == 'l') ||
- (t1 == 'v' && t2 == 'e')) &&
- (size == 4 || word_boundary(text[3]))) {
- HOEDOWN_BUFPUTSL(ob, "&rsquo;");
- return 0;
- }
- }
- }
-
- if (smartypants_quotes(ob, previous_char, size > 0 ? text[1] : 0, 's', &smrt->in_squote))
- return 0;
-
- hoedown_buffer_put(ob, squote_text, squote_size);
- return 0;
-}
-
-/* Converts ' to left or right single quote. */
-static size_t
-smartypants_cb__squote(hoedown_buffer *ob, struct smartypants_data *smrt, uint8_t previous_char, const uint8_t *text, size_t size)
-{
- return smartypants_squote(ob, smrt, previous_char, text, size, text, 1);
-}
-
-/* Converts (c), (r), (tm) */
-static size_t
-smartypants_cb__parens(hoedown_buffer *ob, struct smartypants_data *smrt, uint8_t previous_char, const uint8_t *text, size_t size)
-{
- if (size >= 3) {
- uint8_t t1 = tolower(text[1]);
- uint8_t t2 = tolower(text[2]);
-
- if (t1 == 'c' && t2 == ')') {
- HOEDOWN_BUFPUTSL(ob, "&copy;");
- return 2;
- }
-
- if (t1 == 'r' && t2 == ')') {
- HOEDOWN_BUFPUTSL(ob, "&reg;");
- return 2;
- }
-
- if (size >= 4 && t1 == 't' && t2 == 'm' && text[3] == ')') {
- HOEDOWN_BUFPUTSL(ob, "&trade;");
- return 3;
- }
- }
-
- hoedown_buffer_putc(ob, text[0]);
- return 0;
-}
-
-/* Converts "--" to em-dash, etc. */
-static size_t
-smartypants_cb__dash(hoedown_buffer *ob, struct smartypants_data *smrt, uint8_t previous_char, const uint8_t *text, size_t size)
-{
- if (size >= 3 && text[1] == '-' && text[2] == '-') {
- HOEDOWN_BUFPUTSL(ob, "&mdash;");
- return 2;
- }
-
- if (size >= 2 && text[1] == '-') {
- HOEDOWN_BUFPUTSL(ob, "&ndash;");
- return 1;
- }
-
- hoedown_buffer_putc(ob, text[0]);
- return 0;
-}
-
-/* Converts &quot; etc. */
-static size_t
-smartypants_cb__amp(hoedown_buffer *ob, struct smartypants_data *smrt, uint8_t previous_char, const uint8_t *text, size_t size)
-{
- size_t len;
- if (size >= 6 && memcmp(text, "&quot;", 6) == 0) {
- if (smartypants_quotes(ob, previous_char, size >= 7 ? text[6] : 0, 'd', &smrt->in_dquote))
- return 5;
- }
-
- len = squote_len(text, size);
- if (len > 0) {
- return (len-1) + smartypants_squote(ob, smrt, previous_char, text+(len-1), size-(len-1), text, len);
- }
-
- if (size >= 4 && memcmp(text, "&#0;", 4) == 0)
- return 3;
-
- hoedown_buffer_putc(ob, '&');
- return 0;
-}
-
-/* Converts "..." to ellipsis */
-static size_t
-smartypants_cb__period(hoedown_buffer *ob, struct smartypants_data *smrt, uint8_t previous_char, const uint8_t *text, size_t size)
-{
- if (size >= 3 && text[1] == '.' && text[2] == '.') {
- HOEDOWN_BUFPUTSL(ob, "&hellip;");
- return 2;
- }
-
- if (size >= 5 && text[1] == ' ' && text[2] == '.' && text[3] == ' ' && text[4] == '.') {
- HOEDOWN_BUFPUTSL(ob, "&hellip;");
- return 4;
- }
-
- hoedown_buffer_putc(ob, text[0]);
- return 0;
-}
-
-/* Converts `` to opening double quote */
-static size_t
-smartypants_cb__backtick(hoedown_buffer *ob, struct smartypants_data *smrt, uint8_t previous_char, const uint8_t *text, size_t size)
-{
- if (size >= 2 && text[1] == '`') {
- if (smartypants_quotes(ob, previous_char, size >= 3 ? text[2] : 0, 'd', &smrt->in_dquote))
- return 1;
- }
-
- hoedown_buffer_putc(ob, text[0]);
- return 0;
-}
-
-/* Converts 1/2, 1/4, 3/4 */
-static size_t
-smartypants_cb__number(hoedown_buffer *ob, struct smartypants_data *smrt, uint8_t previous_char, const uint8_t *text, size_t size)
-{
- if (word_boundary(previous_char) && size >= 3) {
- if (text[0] == '1' && text[1] == '/' && text[2] == '2') {
- if (size == 3 || word_boundary(text[3])) {
- HOEDOWN_BUFPUTSL(ob, "&frac12;");
- return 2;
- }
- }
-
- if (text[0] == '1' && text[1] == '/' && text[2] == '4') {
- if (size == 3 || word_boundary(text[3]) ||
- (size >= 5 && tolower(text[3]) == 't' && tolower(text[4]) == 'h')) {
- HOEDOWN_BUFPUTSL(ob, "&frac14;");
- return 2;
- }
- }
-
- if (text[0] == '3' && text[1] == '/' && text[2] == '4') {
- if (size == 3 || word_boundary(text[3]) ||
- (size >= 6 && tolower(text[3]) == 't' && tolower(text[4]) == 'h' && tolower(text[5]) == 's')) {
- HOEDOWN_BUFPUTSL(ob, "&frac34;");
- return 2;
- }
- }
- }
-
- hoedown_buffer_putc(ob, text[0]);
- return 0;
-}
-
-/* Converts " to left or right double quote */
-static size_t
-smartypants_cb__dquote(hoedown_buffer *ob, struct smartypants_data *smrt, uint8_t previous_char, const uint8_t *text, size_t size)
-{
- if (!smartypants_quotes(ob, previous_char, size > 0 ? text[1] : 0, 'd', &smrt->in_dquote))
- HOEDOWN_BUFPUTSL(ob, "&quot;");
-
- return 0;
-}
-
-static size_t
-smartypants_cb__ltag(hoedown_buffer *ob, struct smartypants_data *smrt, uint8_t previous_char, const uint8_t *text, size_t size)
-{
- static const char *skip_tags[] = {
- "pre", "code", "var", "samp", "kbd", "math", "script", "style"
- };
- static const size_t skip_tags_count = 8;
-
- size_t tag, i = 0;
-
- /* This is a comment. Copy everything verbatim until --> or EOF is seen. */
- if (i + 4 < size && memcmp(text, "<!--", 4) == 0) {
- i += 4;
- while (i + 3 < size && memcmp(text + i, "-->", 3) != 0)
- i++;
- i += 3;
- hoedown_buffer_put(ob, text, i + 1);
- return i;
- }
-
- while (i < size && text[i] != '>')
- i++;
-
- for (tag = 0; tag < skip_tags_count; ++tag) {
- if (hoedown_html_is_tag(text, size, skip_tags[tag]) == HOEDOWN_HTML_TAG_OPEN)
- break;
- }
-
- if (tag < skip_tags_count) {
- for (;;) {
- while (i < size && text[i] != '<')
- i++;
-
- if (i == size)
- break;
-
- if (hoedown_html_is_tag(text + i, size - i, skip_tags[tag]) == HOEDOWN_HTML_TAG_CLOSE)
- break;
-
- i++;
- }
-
- while (i < size && text[i] != '>')
- i++;
- }
-
- hoedown_buffer_put(ob, text, i + 1);
- return i;
-}
-
-static size_t
-smartypants_cb__escape(hoedown_buffer *ob, struct smartypants_data *smrt, uint8_t previous_char, const uint8_t *text, size_t size)
-{
- if (size < 2)
- return 0;
-
- switch (text[1]) {
- case '\\':
- case '"':
- case '\'':
- case '.':
- case '-':
- case '`':
- hoedown_buffer_putc(ob, text[1]);
- return 1;
-
- default:
- hoedown_buffer_putc(ob, '\\');
- return 0;
- }
-}
-
-#if 0
-static struct {
- uint8_t c0;
- const uint8_t *pattern;
- const uint8_t *entity;
- int skip;
-} smartypants_subs[] = {
- { '\'', "'s>", "&rsquo;", 0 },
- { '\'', "'t>", "&rsquo;", 0 },
- { '\'', "'re>", "&rsquo;", 0 },
- { '\'', "'ll>", "&rsquo;", 0 },
- { '\'', "'ve>", "&rsquo;", 0 },
- { '\'', "'m>", "&rsquo;", 0 },
- { '\'', "'d>", "&rsquo;", 0 },
- { '-', "--", "&mdash;", 1 },
- { '-', "<->", "&ndash;", 0 },
- { '.', "...", "&hellip;", 2 },
- { '.', ". . .", "&hellip;", 4 },
- { '(', "(c)", "&copy;", 2 },
- { '(', "(r)", "&reg;", 2 },
- { '(', "(tm)", "&trade;", 3 },
- { '3', "<3/4>", "&frac34;", 2 },
- { '3', "<3/4ths>", "&frac34;", 2 },
- { '1', "<1/2>", "&frac12;", 2 },
- { '1', "<1/4>", "&frac14;", 2 },
- { '1', "<1/4th>", "&frac14;", 2 },
- { '&', "&#0;", 0, 3 },
-};
-#endif
-
-void
-hoedown_html_smartypants(hoedown_buffer *ob, const uint8_t *text, size_t size)
-{
- size_t i;
- struct smartypants_data smrt = {0, 0};
-
- if (!text)
- return;
-
- hoedown_buffer_grow(ob, size);
-
- for (i = 0; i < size; ++i) {
- size_t org;
- uint8_t action = 0;
-
- org = i;
- while (i < size && (action = smartypants_cb_chars[text[i]]) == 0)
- i++;
-
- if (i > org)
- hoedown_buffer_put(ob, text + org, i - org);
-
- if (i < size) {
- i += smartypants_cb_ptrs[(int)action]
- (ob, &smrt, i ? text[i - 1] : 0, text + i, size - i);
- }
- }
-}
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-07 21:04:39 +0000