diff options
Diffstat (limited to 'depends/hoedown/src')
| -rw-r--r-- | depends/hoedown/src/autolink.c | 281 | ||||
| -rw-r--r-- | depends/hoedown/src/buffer.c | 308 | ||||
| -rw-r--r-- | depends/hoedown/src/document.c | 2958 | ||||
| -rw-r--r-- | depends/hoedown/src/escape.c | 188 | ||||
| -rw-r--r-- | depends/hoedown/src/html.c | 754 | ||||
| -rw-r--r-- | depends/hoedown/src/html_blocks.c | 240 | ||||
| -rw-r--r-- | depends/hoedown/src/html_smartypants.c | 435 | ||||
| -rw-r--r-- | depends/hoedown/src/stack.c | 79 | ||||
| -rw-r--r-- | depends/hoedown/src/version.c | 9 |
9 files changed, 0 insertions, 5252 deletions
diff --git a/depends/hoedown/src/autolink.c b/depends/hoedown/src/autolink.c deleted file mode 100644 index 9bc7fad5..00000000 --- a/depends/hoedown/src/autolink.c +++ /dev/null @@ -1,281 +0,0 @@ -#include "hoedown/autolink.h" - -#include <string.h> -#include <stdlib.h> -#include <stdio.h> -#include <ctype.h> - -#ifndef _MSC_VER -#include <strings.h> -#else -#define strncasecmp _strnicmp -#endif - -int -hoedown_autolink_is_safe(const uint8_t *data, size_t size) -{ - static const size_t valid_uris_count = 6; - static const char *valid_uris[] = { - "http://", "https://", "/", "#", "ftp://", "mailto:" - }; - static const size_t valid_uris_size[] = { 7, 8, 1, 1, 6, 7 }; - size_t i; - - for (i = 0; i < valid_uris_count; ++i) { - size_t len = valid_uris_size[i]; - - if (size > len && - strncasecmp((char *)data, valid_uris[i], len) == 0 && - isalnum(data[len])) - return 1; - } - - return 0; -} - -static size_t -autolink_delim(uint8_t *data, size_t link_end, size_t max_rewind, size_t size) -{ - uint8_t cclose, copen = 0; - size_t i; - - for (i = 0; i < link_end; ++i) - if (data[i] == '<') { - link_end = i; - break; - } - - while (link_end > 0) { - if (strchr("?!.,:", data[link_end - 1]) != NULL) - link_end--; - - else if (data[link_end - 1] == ';') { - size_t new_end = link_end - 2; - - while (new_end > 0 && isalpha(data[new_end])) - new_end--; - - if (new_end < link_end - 2 && data[new_end] == '&') - link_end = new_end; - else - link_end--; - } - else break; - } - - if (link_end == 0) - return 0; - - cclose = data[link_end - 1]; - - switch (cclose) { - case '"': copen = '"'; break; - case '\'': copen = '\''; break; - case ')': copen = '('; break; - case ']': copen = '['; break; - case '}': copen = '{'; break; - } - - if (copen != 0) { - size_t closing = 0; - size_t opening = 0; - size_t i = 0; - - /* Try to close the final punctuation sign in this same line; - * if we managed to close it outside of the URL, that means that it's - * not part of the URL. If it closes inside the URL, that means it - * is part of the URL. - * - * Examples: - * - * foo http://www.pokemon.com/Pikachu_(Electric) bar - * => http://www.pokemon.com/Pikachu_(Electric) - * - * foo (http://www.pokemon.com/Pikachu_(Electric)) bar - * => http://www.pokemon.com/Pikachu_(Electric) - * - * foo http://www.pokemon.com/Pikachu_(Electric)) bar - * => http://www.pokemon.com/Pikachu_(Electric)) - * - * (foo http://www.pokemon.com/Pikachu_(Electric)) bar - * => foo http://www.pokemon.com/Pikachu_(Electric) - */ - - while (i < link_end) { - if (data[i] == copen) - opening++; - else if (data[i] == cclose) - closing++; - - i++; - } - - if (closing != opening) - link_end--; - } - - return link_end; -} - -static size_t -check_domain(uint8_t *data, size_t size, int allow_short) -{ - size_t i, np = 0; - - if (!isalnum(data[0])) - return 0; - - for (i = 1; i < size - 1; ++i) { - if (strchr(".:", data[i]) != NULL) np++; - else if (!isalnum(data[i]) && data[i] != '-') break; - } - - if (allow_short) { - /* We don't need a valid domain in the strict sense (with - * least one dot; so just make sure it's composed of valid - * domain characters and return the length of the the valid - * sequence. */ - return i; - } else { - /* a valid domain needs to have at least a dot. - * that's as far as we get */ - return np ? i : 0; - } -} - -size_t -hoedown_autolink__www( - size_t *rewind_p, - hoedown_buffer *link, - uint8_t *data, - size_t max_rewind, - size_t size, - unsigned int flags) -{ - size_t link_end; - - if (max_rewind > 0 && !ispunct(data[-1]) && !isspace(data[-1])) - return 0; - - if (size < 4 || memcmp(data, "www.", strlen("www.")) != 0) - return 0; - - link_end = check_domain(data, size, 0); - - if (link_end == 0) - return 0; - - while (link_end < size && !isspace(data[link_end])) - link_end++; - - link_end = autolink_delim(data, link_end, max_rewind, size); - - if (link_end == 0) - return 0; - - hoedown_buffer_put(link, data, link_end); - *rewind_p = 0; - - return (int)link_end; -} - -size_t -hoedown_autolink__email( - size_t *rewind_p, - hoedown_buffer *link, - uint8_t *data, - size_t max_rewind, - size_t size, - unsigned int flags) -{ - size_t link_end, rewind; - int nb = 0, np = 0; - - for (rewind = 0; rewind < max_rewind; ++rewind) { - uint8_t c = data[-1 - rewind]; - - if (isalnum(c)) - continue; - - if (strchr(".+-_", c) != NULL) - continue; - - break; - } - - if (rewind == 0) - return 0; - - for (link_end = 0; link_end < size; ++link_end) { - uint8_t c = data[link_end]; - - if (isalnum(c)) - continue; - - if (c == '@') - nb++; - else if (c == '.' && link_end < size - 1) - np++; - else if (c != '-' && c != '_') - break; - } - - if (link_end < 2 || nb != 1 || np == 0 || - !isalpha(data[link_end - 1])) - return 0; - - link_end = autolink_delim(data, link_end, max_rewind, size); - - if (link_end == 0) - return 0; - - hoedown_buffer_put(link, data - rewind, link_end + rewind); - *rewind_p = rewind; - - return link_end; -} - -size_t -hoedown_autolink__url( - size_t *rewind_p, - hoedown_buffer *link, - uint8_t *data, - size_t max_rewind, - size_t size, - unsigned int flags) -{ - size_t link_end, rewind = 0, domain_len; - - if (size < 4 || data[1] != '/' || data[2] != '/') - return 0; - - while (rewind < max_rewind && isalpha(data[-1 - rewind])) - rewind++; - - if (!hoedown_autolink_is_safe(data - rewind, size + rewind)) - return 0; - - link_end = strlen("://"); - - domain_len = check_domain( - data + link_end, - size - link_end, - flags & HOEDOWN_AUTOLINK_SHORT_DOMAINS); - - if (domain_len == 0) - return 0; - - link_end += domain_len; - while (link_end < size && !isspace(data[link_end])) - link_end++; - - link_end = autolink_delim(data, link_end, max_rewind, size); - - if (link_end == 0) - return 0; - - hoedown_buffer_put(link, data - rewind, link_end + rewind); - *rewind_p = rewind; - - return link_end; -} diff --git a/depends/hoedown/src/buffer.c b/depends/hoedown/src/buffer.c deleted file mode 100644 index 1c7ba55a..00000000 --- a/depends/hoedown/src/buffer.c +++ /dev/null @@ -1,308 +0,0 @@ -#include "hoedown/buffer.h" - -#include <stdio.h> -#include <stdlib.h> -#include <string.h> -#include <assert.h> - -void * -hoedown_malloc(size_t size) -{ - void *ret = malloc(size); - - if (!ret) { - fprintf(stderr, "Allocation failed.\n"); - abort(); - } - - return ret; -} - -void * -hoedown_calloc(size_t nmemb, size_t size) -{ - void *ret = calloc(nmemb, size); - - if (!ret) { - fprintf(stderr, "Allocation failed.\n"); - abort(); - } - - return ret; -} - -void * -hoedown_realloc(void *ptr, size_t size) -{ - void *ret = realloc(ptr, size); - - if (!ret) { - fprintf(stderr, "Allocation failed.\n"); - abort(); - } - - return ret; -} - -void -hoedown_buffer_init( - hoedown_buffer *buf, - size_t unit, - hoedown_realloc_callback data_realloc, - hoedown_free_callback data_free, - hoedown_free_callback buffer_free) -{ - assert(buf); - - buf->data = NULL; - buf->size = buf->asize = 0; - buf->unit = unit; - buf->data_realloc = data_realloc; - buf->data_free = data_free; - buf->buffer_free = buffer_free; -} - -void -hoedown_buffer_uninit(hoedown_buffer *buf) -{ - assert(buf && buf->unit); - buf->data_free(buf->data); -} - -hoedown_buffer * -hoedown_buffer_new(size_t unit) -{ - hoedown_buffer *ret = hoedown_malloc(sizeof (hoedown_buffer)); - hoedown_buffer_init(ret, unit, hoedown_realloc, free, free); - return ret; -} - -void -hoedown_buffer_free(hoedown_buffer *buf) -{ - if (!buf) return; - assert(buf && buf->unit); - - buf->data_free(buf->data); - - if (buf->buffer_free) - buf->buffer_free(buf); -} - -void -hoedown_buffer_reset(hoedown_buffer *buf) -{ - assert(buf && buf->unit); - - buf->data_free(buf->data); - buf->data = NULL; - buf->size = buf->asize = 0; -} - -void -hoedown_buffer_grow(hoedown_buffer *buf, size_t neosz) -{ - size_t neoasz; - assert(buf && buf->unit); - - if (buf->asize >= neosz) - return; - - neoasz = buf->asize + buf->unit; - while (neoasz < neosz) - neoasz += buf->unit; - - buf->data = (uint8_t *) buf->data_realloc(buf->data, neoasz); - buf->asize = neoasz; -} - -void -hoedown_buffer_put(hoedown_buffer *buf, const uint8_t *data, size_t size) -{ - assert(buf && buf->unit); - - if (buf->size + size > buf->asize) - hoedown_buffer_grow(buf, buf->size + size); - - memcpy(buf->data + buf->size, data, size); - buf->size += size; -} - -void -hoedown_buffer_puts(hoedown_buffer *buf, const char *str) -{ - hoedown_buffer_put(buf, (const uint8_t *)str, strlen(str)); -} - -void -hoedown_buffer_putc(hoedown_buffer *buf, uint8_t c) -{ - assert(buf && buf->unit); - - if (buf->size >= buf->asize) - hoedown_buffer_grow(buf, buf->size + 1); - - buf->data[buf->size] = c; - buf->size += 1; -} - -int -hoedown_buffer_putf(hoedown_buffer *buf, FILE *file) -{ - assert(buf && buf->unit); - - while (!(feof(file) || ferror(file))) { - hoedown_buffer_grow(buf, buf->size + buf->unit); - buf->size += fread(buf->data + buf->size, 1, buf->unit, file); - } - - return ferror(file); -} - -void -hoedown_buffer_set(hoedown_buffer *buf, const uint8_t *data, size_t size) -{ - assert(buf && buf->unit); - - if (size > buf->asize) - hoedown_buffer_grow(buf, size); - - memcpy(buf->data, data, size); - buf->size = size; -} - -void -hoedown_buffer_sets(hoedown_buffer *buf, const char *str) -{ - hoedown_buffer_set(buf, (const uint8_t *)str, strlen(str)); -} - -int -hoedown_buffer_eq(const hoedown_buffer *buf, const uint8_t *data, size_t size) -{ - if (buf->size != size) return 0; - return memcmp(buf->data, data, size) == 0; -} - -int -hoedown_buffer_eqs(const hoedown_buffer *buf, const char *str) -{ - return hoedown_buffer_eq(buf, (const uint8_t *)str, strlen(str)); -} - -int -hoedown_buffer_prefix(const hoedown_buffer *buf, const char *prefix) -{ - size_t i; - - for (i = 0; i < buf->size; ++i) { - if (prefix[i] == 0) - return 0; - - if (buf->data[i] != prefix[i]) - return buf->data[i] - prefix[i]; - } - - return 0; -} - -void -hoedown_buffer_slurp(hoedown_buffer *buf, size_t size) -{ - assert(buf && buf->unit); - - if (size >= buf->size) { - buf->size = 0; - return; - } - - buf->size -= size; - memmove(buf->data, buf->data + size, buf->size); -} - -const char * -hoedown_buffer_cstr(hoedown_buffer *buf) -{ - assert(buf && buf->unit); - - if (buf->size < buf->asize && buf->data[buf->size] == 0) - return (char *)buf->data; - - hoedown_buffer_grow(buf, buf->size + 1); - buf->data[buf->size] = 0; - - return (char *)buf->data; -} - -void -hoedown_buffer_printf(hoedown_buffer *buf, const char *fmt, ...) -{ - va_list ap; - int n; - - assert(buf && buf->unit); - - if (buf->size >= buf->asize) - hoedown_buffer_grow(buf, buf->size + 1); - - va_start(ap, fmt); - n = vsnprintf((char *)buf->data + buf->size, buf->asize - buf->size, fmt, ap); - va_end(ap); - - if (n < 0) { -#ifndef _MSC_VER - return; -#else - va_start(ap, fmt); - n = _vscprintf(fmt, ap); - va_end(ap); -#endif - } - - if ((size_t)n >= buf->asize - buf->size) { - hoedown_buffer_grow(buf, buf->size + n + 1); - - va_start(ap, fmt); - n = vsnprintf((char *)buf->data + buf->size, buf->asize - buf->size, fmt, ap); - va_end(ap); - } - - if (n < 0) - return; - - buf->size += n; -} - -void hoedown_buffer_put_utf8(hoedown_buffer *buf, unsigned int c) { - unsigned char unichar[4]; - - assert(buf && buf->unit); - - if (c < 0x80) { - hoedown_buffer_putc(buf, c); - } - else if (c < 0x800) { - unichar[0] = 192 + (c / 64); - unichar[1] = 128 + (c % 64); - hoedown_buffer_put(buf, unichar, 2); - } - else if (c - 0xd800u < 0x800) { - HOEDOWN_BUFPUTSL(buf, "\xef\xbf\xbd"); - } - else if (c < 0x10000) { - unichar[0] = 224 + (c / 4096); - unichar[1] = 128 + (c / 64) % 64; - unichar[2] = 128 + (c % 64); - hoedown_buffer_put(buf, unichar, 3); - } - else if (c < 0x110000) { - unichar[0] = 240 + (c / 262144); - unichar[1] = 128 + (c / 4096) % 64; - unichar[2] = 128 + (c / 64) % 64; - unichar[3] = 128 + (c % 64); - hoedown_buffer_put(buf, unichar, 4); - } - else { - HOEDOWN_BUFPUTSL(buf, "\xef\xbf\xbd"); - } -} diff --git a/depends/hoedown/src/document.c b/depends/hoedown/src/document.c deleted file mode 100644 index 8ba82e47..00000000 --- a/depends/hoedown/src/document.c +++ /dev/null @@ -1,2958 +0,0 @@ -#include "hoedown/document.h" - -#include <assert.h> -#include <string.h> -#include <ctype.h> -#include <stdio.h> - -#include "hoedown/stack.h" - -#ifndef _MSC_VER -#include <strings.h> -#else -#define strncasecmp _strnicmp -#endif - -#define REF_TABLE_SIZE 8 - -#define BUFFER_BLOCK 0 -#define BUFFER_SPAN 1 - -#define HOEDOWN_LI_END 8 /* internal list flag */ - -const char *hoedown_find_block_tag(const char *str, unsigned int len); - -/*************** - * LOCAL TYPES * - ***************/ - -/* link_ref: reference to a link */ -struct link_ref { - unsigned int id; - - hoedown_buffer *link; - hoedown_buffer *title; - - struct link_ref *next; -}; - -/* footnote_ref: reference to a footnote */ -struct footnote_ref { - unsigned int id; - - int is_used; - unsigned int num; - - hoedown_buffer *contents; -}; - -/* footnote_item: an item in a footnote_list */ -struct footnote_item { - struct footnote_ref *ref; - struct footnote_item *next; -}; - -/* footnote_list: linked list of footnote_item */ -struct footnote_list { - unsigned int count; - struct footnote_item *head; - struct footnote_item *tail; -}; - -/* char_trigger: function pointer to render active chars */ -/* returns the number of chars taken care of */ -/* data is the pointer of the beginning of the span */ -/* offset is the number of valid chars before data */ -typedef size_t -(*char_trigger)(hoedown_buffer *ob, hoedown_document *doc, uint8_t *data, size_t offset, size_t size); - -static size_t char_emphasis(hoedown_buffer *ob, hoedown_document *doc, uint8_t *data, size_t offset, size_t size); -static size_t char_quote(hoedown_buffer *ob, hoedown_document *doc, uint8_t *data, size_t offset, size_t size); -static size_t char_linebreak(hoedown_buffer *ob, hoedown_document *doc, uint8_t *data, size_t offset, size_t size); -static size_t char_codespan(hoedown_buffer *ob, hoedown_document *doc, uint8_t *data, size_t offset, size_t size); -static size_t char_escape(hoedown_buffer *ob, hoedown_document *doc, uint8_t *data, size_t offset, size_t size); -static size_t char_entity(hoedown_buffer *ob, hoedown_document *doc, uint8_t *data, size_t offset, size_t size); -static size_t char_langle_tag(hoedown_buffer *ob, hoedown_document *doc, uint8_t *data, size_t offset, size_t size); -static size_t char_autolink_url(hoedown_buffer *ob, hoedown_document *doc, uint8_t *data, size_t offset, size_t size); -static size_t char_autolink_email(hoedown_buffer *ob, hoedown_document *doc, uint8_t *data, size_t offset, size_t size); -static size_t char_autolink_www(hoedown_buffer *ob, hoedown_document *doc, uint8_t *data, size_t offset, size_t size); -static size_t char_link(hoedown_buffer *ob, hoedown_document *doc, uint8_t *data, size_t offset, size_t size); -static size_t char_superscript(hoedown_buffer *ob, hoedown_document *doc, uint8_t *data, size_t offset, size_t size); -static size_t char_math(hoedown_buffer *ob, hoedown_document *doc, uint8_t *data, size_t offset, size_t size); - -enum markdown_char_t { - MD_CHAR_NONE = 0, - MD_CHAR_EMPHASIS, - MD_CHAR_CODESPAN, - MD_CHAR_LINEBREAK, - MD_CHAR_LINK, - MD_CHAR_LANGLE, - MD_CHAR_ESCAPE, - MD_CHAR_ENTITY, - MD_CHAR_AUTOLINK_URL, - MD_CHAR_AUTOLINK_EMAIL, - MD_CHAR_AUTOLINK_WWW, - MD_CHAR_SUPERSCRIPT, - MD_CHAR_QUOTE, - MD_CHAR_MATH -}; - -static char_trigger markdown_char_ptrs[] = { - NULL, - &char_emphasis, - &char_codespan, - &char_linebreak, - &char_link, - &char_langle_tag, - &char_escape, - &char_entity, - &char_autolink_url, - &char_autolink_email, - &char_autolink_www, - &char_superscript, - &char_quote, - &char_math -}; - -struct hoedown_document { - hoedown_renderer md; - hoedown_renderer_data data; - - struct link_ref *refs[REF_TABLE_SIZE]; - struct footnote_list footnotes_found; - struct footnote_list footnotes_used; - uint8_t active_char[256]; - hoedown_stack work_bufs[2]; - hoedown_extensions ext_flags; - size_t max_nesting; - int in_link_body; -}; - -/*************************** - * HELPER FUNCTIONS * - ***************************/ - -static hoedown_buffer * -newbuf(hoedown_document *doc, int type) -{ - static const size_t buf_size[2] = {256, 64}; - hoedown_buffer *work = NULL; - hoedown_stack *pool = &doc->work_bufs[type]; - - if (pool->size < pool->asize && - pool->item[pool->size] != NULL) { - work = pool->item[pool->size++]; - work->size = 0; - } else { - work = hoedown_buffer_new(buf_size[type]); - hoedown_stack_push(pool, work); - } - - return work; -} - -static void -popbuf(hoedown_document *doc, int type) -{ - doc->work_bufs[type].size--; -} - -static void -unscape_text(hoedown_buffer *ob, hoedown_buffer *src) -{ - size_t i = 0, org; - while (i < src->size) { - org = i; - while (i < src->size && src->data[i] != '\\') - i++; - - if (i > org) - hoedown_buffer_put(ob, src->data + org, i - org); - - if (i + 1 >= src->size) - break; - - hoedown_buffer_putc(ob, src->data[i + 1]); - i += 2; - } -} - -static unsigned int -hash_link_ref(const uint8_t *link_ref, size_t length) -{ - size_t i; - unsigned int hash = 0; - - for (i = 0; i < length; ++i) - hash = tolower(link_ref[i]) + (hash << 6) + (hash << 16) - hash; - - return hash; -} - -static struct link_ref * -add_link_ref( - struct link_ref **references, - const uint8_t *name, size_t name_size) -{ - struct link_ref *ref = hoedown_calloc(1, sizeof(struct link_ref)); - - ref->id = hash_link_ref(name, name_size); - ref->next = references[ref->id % REF_TABLE_SIZE]; - - references[ref->id % REF_TABLE_SIZE] = ref; - return ref; -} - -static struct link_ref * -find_link_ref(struct link_ref **references, uint8_t *name, size_t length) -{ - unsigned int hash = hash_link_ref(name, length); - struct link_ref *ref = NULL; - - ref = references[hash % REF_TABLE_SIZE]; - - while (ref != NULL) { - if (ref->id == hash) - return ref; - - ref = ref->next; - } - - return NULL; -} - -static void -free_link_refs(struct link_ref **references) -{ - size_t i; - - for (i = 0; i < REF_TABLE_SIZE; ++i) { - struct link_ref *r = references[i]; - struct link_ref *next; - - while (r) { - next = r->next; - hoedown_buffer_free(r->link); - hoedown_buffer_free(r->title); - free(r); - r = next; - } - } -} - -static struct footnote_ref * -create_footnote_ref(struct footnote_list *list, const uint8_t *name, size_t name_size) -{ - struct footnote_ref *ref = hoedown_calloc(1, sizeof(struct footnote_ref)); - - ref->id = hash_link_ref(name, name_size); - - return ref; -} - -static int -add_footnote_ref(struct footnote_list *list, struct footnote_ref *ref) -{ - struct footnote_item *item = hoedown_calloc(1, sizeof(struct footnote_item)); - if (!item) - return 0; - item->ref = ref; - - if (list->head == NULL) { - list->head = list->tail = item; - } else { - list->tail->next = item; - list->tail = item; - } - list->count++; - - return 1; -} - -static struct footnote_ref * -find_footnote_ref(struct footnote_list *list, uint8_t *name, size_t length) -{ - unsigned int hash = hash_link_ref(name, length); - struct footnote_item *item = NULL; - - item = list->head; - - while (item != NULL) { - if (item->ref->id == hash) - return item->ref; - item = item->next; - } - - return NULL; -} - -static void -free_footnote_ref(struct footnote_ref *ref) -{ - hoedown_buffer_free(ref->contents); - free(ref); -} - -static void -free_footnote_list(struct footnote_list *list, int free_refs) -{ - struct footnote_item *item = list->head; - struct footnote_item *next; - - while (item) { - next = item->next; - if (free_refs) - free_footnote_ref(item->ref); - free(item); - item = next; - } -} - - -/* - * Check whether a char is a Markdown spacing char. - - * Right now we only consider spaces the actual - * space and a newline: tabs and carriage returns - * are filtered out during the preprocessing phase. - * - * If we wanted to actually be UTF-8 compliant, we - * should instead extract an Unicode codepoint from - * this character and check for space properties. - */ -static int -_isspace(int c) -{ - return c == ' ' || c == '\n'; -} - -/* is_empty_all: verify that all the data is spacing */ -static int -is_empty_all(const uint8_t *data, size_t size) -{ - size_t i = 0; - while (i < size && _isspace(data[i])) i++; - return i == size; -} - -/* - * Replace all spacing characters in data with spaces. As a special - * case, this collapses a newline with the previous space, if possible. - */ -static void -replace_spacing(hoedown_buffer *ob, const uint8_t *data, size_t size) -{ - size_t i = 0, mark; - hoedown_buffer_grow(ob, size); - while (1) { - mark = i; - while (i < size && data[i] != '\n') i++; - hoedown_buffer_put(ob, data + mark, i - mark); - - if (i >= size) break; - - if (!(i > 0 && data[i-1] == ' ')) - hoedown_buffer_putc(ob, ' '); - i++; - } -} - -/**************************** - * INLINE PARSING FUNCTIONS * - ****************************/ - -/* is_mail_autolink • looks for the address part of a mail autolink and '>' */ -/* this is less strict than the original markdown e-mail address matching */ -static size_t -is_mail_autolink(uint8_t *data, size_t size) -{ - size_t i = 0, nb = 0; - - /* address is assumed to be: [-@._a-zA-Z0-9]+ with exactly one '@' */ - for (i = 0; i < size; ++i) { - if (isalnum(data[i])) - continue; - - switch (data[i]) { - case '@': - nb++; - - case '-': - case '.': - case '_': - break; - - case '>': - return (nb == 1) ? i + 1 : 0; - - default: - return 0; - } - } - - return 0; -} - -/* tag_length • returns the length of the given tag, or 0 is it's not valid */ -static size_t -tag_length(uint8_t *data, size_t size, hoedown_autolink_type *autolink) -{ - size_t i, j; - - /* a valid tag can't be shorter than 3 chars */ - if (size < 3) return 0; - - /* begins with a '<' optionally followed by '/', followed by letter or number */ - if (data[0] != '<') return 0; - i = (data[1] == '/') ? 2 : 1; - - if (!isalnum(data[i])) - return 0; - - /* scheme test */ - *autolink = HOEDOWN_AUTOLINK_NONE; - - /* try to find the beginning of an URI */ - while (i < size && (isalnum(data[i]) || data[i] == '.' || data[i] == '+' || data[i] == '-')) - i++; - - if (i > 1 && data[i] == '@') { - if ((j = is_mail_autolink(data + i, size - i)) != 0) { - *autolink = HOEDOWN_AUTOLINK_EMAIL; - return i + j; - } - } - - if (i > 2 && data[i] == ':') { - *autolink = HOEDOWN_AUTOLINK_NORMAL; - i++; - } - - /* completing autolink test: no spacing or ' or " */ - if (i >= size) - *autolink = HOEDOWN_AUTOLINK_NONE; - - else if (*autolink) { - j = i; - - while (i < size) { - if (data[i] == '\\') i += 2; - else if (data[i] == '>' || data[i] == '\'' || - data[i] == '"' || data[i] == ' ' || data[i] == '\n') - break; - else i++; - } - - if (i >= size) return 0; - if (i > j && data[i] == '>') return i + 1; - /* one of the forbidden chars has been found */ - *autolink = HOEDOWN_AUTOLINK_NONE; - } - - /* looking for something looking like a tag end */ - while (i < size && data[i] != '>') i++; - if (i >= size) return 0; - return i + 1; -} - -/* parse_inline • parses inline markdown elements */ -static void -parse_inline(hoedown_buffer *ob, hoedown_document *doc, uint8_t *data, size_t size) -{ - size_t i = 0, end = 0, consumed = 0; - hoedown_buffer work = { 0, 0, 0, 0, NULL, NULL, NULL }; - uint8_t *active_char = doc->active_char; - - if (doc->work_bufs[BUFFER_SPAN].size + - doc->work_bufs[BUFFER_BLOCK].size > doc->max_nesting) - return; - - while (i < size) { - /* copying inactive chars into the output */ - while (end < size && active_char[data[end]] == 0) - end++; - - if (doc->md.normal_text) { - work.data = data + i; - work.size = end - i; - doc->md.normal_text(ob, &work, &doc->data); - } - else - hoedown_buffer_put(ob, data + i, end - i); - - if (end >= size) break; - i = end; - - end = markdown_char_ptrs[ (int)active_char[data[end]] ](ob, doc, data + i, i - consumed, size - i); - if (!end) /* no action from the callback */ - end = i + 1; - else { - i += end; - end = i; - consumed = i; - } - } -} - -/* is_escaped • returns whether special char at data[loc] is escaped by '\\' */ -static int -is_escaped(uint8_t *data, size_t loc) -{ - size_t i = loc; - while (i >= 1 && data[i - 1] == '\\') - i--; - - /* odd numbers of backslashes escapes data[loc] */ - return (loc - i) % 2; -} - -/* find_emph_char • looks for the next emph uint8_t, skipping other constructs */ -static size_t -find_emph_char(uint8_t *data, size_t size, uint8_t c) -{ - size_t i = 0; - - while (i < size) { - while (i < size && data[i] != c && data[i] != '[' && data[i] != '`') - i++; - - if (i == size) - return 0; - - /* not counting escaped chars */ - if (is_escaped(data, i)) { - i++; continue; - } - - if (data[i] == c) - return i; - - /* skipping a codespan */ - if (data[i] == '`') { - size_t span_nb = 0, bt; - size_t tmp_i = 0; - - /* counting the number of opening backticks */ - while (i < size && data[i] == '`') { - i++; span_nb++; - } - - if (i >= size) return 0; - - /* finding the matching closing sequence */ - bt = 0; - while (i < size && bt < span_nb) { - if (!tmp_i && data[i] == c) tmp_i = i; - if (data[i] == '`') bt++; - else bt = 0; - i++; - } - - /* not a well-formed codespan; use found matching emph char */ - if (i >= size) return tmp_i; - } - /* skipping a link */ - else if (data[i] == '[') { - size_t tmp_i = 0; - uint8_t cc; - - i++; - while (i < size && data[i] != ']') { - if (!tmp_i && data[i] == c) tmp_i = i; - i++; - } - - i++; - while (i < size && _isspace(data[i])) - i++; - - if (i >= size) - return tmp_i; - - switch (data[i]) { - case '[': - cc = ']'; break; - - case '(': - cc = ')'; break; - - default: - if (tmp_i) - return tmp_i; - else - continue; - } - - i++; - while (i < size && data[i] != cc) { - if (!tmp_i && data[i] == c) tmp_i = i; - i++; - } - - if (i >= size) - return tmp_i; - - i++; - } - } - - return 0; -} - -/* parse_emph1 • parsing single emphase */ -/* closed by a symbol not preceded by spacing and not followed by symbol */ -static size_t -parse_emph1(hoedown_buffer *ob, hoedown_document *doc, uint8_t *data, size_t size, uint8_t c) -{ - size_t i = 0, len; - hoedown_buffer *work = 0; - int r; - - /* skipping one symbol if coming from emph3 */ - if (size > 1 && data[0] == c && data[1] == c) i = 1; - - while (i < size) { - len = find_emph_char(data + i, size - i, c); - if (!len) return 0; - i += len; - if (i >= size) return 0; - - if (data[i] == c && !_isspace(data[i - 1])) { - - if (doc->ext_flags & HOEDOWN_EXT_NO_INTRA_EMPHASIS) { - if (i + 1 < size && isalnum(data[i + 1])) - continue; - } - - work = newbuf(doc, BUFFER_SPAN); - parse_inline(work, doc, data, i); - - if (doc->ext_flags & HOEDOWN_EXT_UNDERLINE && c == '_') - r = doc->md.underline(ob, work, &doc->data); - else - r = doc->md.emphasis(ob, work, &doc->data); - - popbuf(doc, BUFFER_SPAN); - return r ? i + 1 : 0; - } - } - - return 0; -} - -/* parse_emph2 • parsing single emphase */ -static size_t -parse_emph2(hoedown_buffer *ob, hoedown_document *doc, uint8_t *data, size_t size, uint8_t c) -{ - size_t i = 0, len; - hoedown_buffer *work = 0; - int r; - - while (i < size) { - len = find_emph_char(data + i, size - i, c); - if (!len) return 0; - i += len; - - if (i + 1 < size && data[i] == c && data[i + 1] == c && i && !_isspace(data[i - 1])) { - work = newbuf(doc, BUFFER_SPAN); - parse_inline(work, doc, data, i); - - if (c == '~') - r = doc->md.strikethrough(ob, work, &doc->data); - else if (c == '=') - r = doc->md.highlight(ob, work, &doc->data); - else - r = doc->md.double_emphasis(ob, work, &doc->data); - - popbuf(doc, BUFFER_SPAN); - return r ? i + 2 : 0; - } - i++; - } - return 0; -} - -/* parse_emph3 • parsing single emphase */ -/* finds the first closing tag, and delegates to the other emph */ -static size_t -parse_emph3(hoedown_buffer *ob, hoedown_document *doc, uint8_t *data, size_t size, uint8_t c) -{ - size_t i = 0, len; - int r; - - while (i < size) { - len = find_emph_char(data + i, size - i, c); - if (!len) return 0; - i += len; - - /* skip spacing preceded symbols */ - if (data[i] != c || _isspace(data[i - 1])) - continue; - - if (i + 2 < size && data[i + 1] == c && data[i + 2] == c && doc->md.triple_emphasis) { - /* triple symbol found */ - hoedown_buffer *work = newbuf(doc, BUFFER_SPAN); - - parse_inline(work, doc, data, i); - r = doc->md.triple_emphasis(ob, work, &doc->data); - popbuf(doc, BUFFER_SPAN); - return r ? i + 3 : 0; - - } else if (i + 1 < size && data[i + 1] == c) { - /* double symbol found, handing over to emph1 */ - len = parse_emph1(ob, doc, data - 2, size + 2, c); - if (!len) return 0; - else return len - 2; - - } else { - /* single symbol found, handing over to emph2 */ - len = parse_emph2(ob, doc, data - 1, size + 1, c); - if (!len) return 0; - else return len - 1; - } - } - return 0; -} - -/* parse_math • parses a math span until the given ending delimiter */ -static size_t -parse_math(hoedown_buffer *ob, hoedown_document *doc, uint8_t *data, size_t offset, size_t size, const char *end, size_t delimsz, int displaymode) -{ - hoedown_buffer text = { NULL, 0, 0, 0, NULL, NULL, NULL }; - size_t i = delimsz; - - if (!doc->md.math) - return 0; - - /* find ending delimiter */ - while (1) { - while (i < size && data[i] != (uint8_t)end[0]) - i++; - - if (i >= size) - return 0; - - if (!is_escaped(data, i) && !(i + delimsz > size) - && memcmp(data + i, end, delimsz) == 0) - break; - - i++; - } - - /* prepare buffers */ - text.data = data + delimsz; - text.size = i - delimsz; - - /* if this is a $$ and MATH_EXPLICIT is not active, - * guess whether displaymode should be enabled from the context */ - i += delimsz; - if (delimsz == 2 && !(doc->ext_flags & HOEDOWN_EXT_MATH_EXPLICIT)) - displaymode = is_empty_all(data - offset, offset) && is_empty_all(data + i, size - i); - - /* call callback */ - if (doc->md.math(ob, &text, displaymode, &doc->data)) - return i; - - return 0; -} - -/* char_emphasis • single and double emphasis parsing */ -static size_t -char_emphasis(hoedown_buffer *ob, hoedown_document *doc, uint8_t *data, size_t offset, size_t size) -{ - uint8_t c = data[0]; - size_t ret; - - if (doc->ext_flags & HOEDOWN_EXT_NO_INTRA_EMPHASIS) { - if (offset > 0 && !_isspace(data[-1]) && data[-1] != '>' && data[-1] != '(') - return 0; - } - - if (size > 2 && data[1] != c) { - /* spacing cannot follow an opening emphasis; - * strikethrough and highlight only takes two characters '~~' */ - if (c == '~' || c == '=' || _isspace(data[1]) || (ret = parse_emph1(ob, doc, data + 1, size - 1, c)) == 0) - return 0; - - return ret + 1; - } - - if (size > 3 && data[1] == c && data[2] != c) { - if (_isspace(data[2]) || (ret = parse_emph2(ob, doc, data + 2, size - 2, c)) == 0) - return 0; - - return ret + 2; - } - - if (size > 4 && data[1] == c && data[2] == c && data[3] != c) { - if (c == '~' || c == '=' || _isspace(data[3]) || (ret = parse_emph3(ob, doc, data + 3, size - 3, c)) == 0) - return 0; - - return ret + 3; - } - - return 0; -} - - -/* char_linebreak • '\n' preceded by two spaces (assuming linebreak != 0) */ -static size_t -char_linebreak(hoedown_buffer *ob, hoedown_document *doc, uint8_t *data, size_t offset, size_t size) -{ - if (offset < 2 || data[-1] != ' ' || data[-2] != ' ') - return 0; - - /* removing the last space from ob and rendering */ - while (ob->size && ob->data[ob->size - 1] == ' ') - ob->size--; - - return doc->md.linebreak(ob, &doc->data) ? 1 : 0; -} - - -/* char_codespan • '`' parsing a code span (assuming codespan != 0) */ -static size_t -char_codespan(hoedown_buffer *ob, hoedown_document *doc, uint8_t *data, size_t offset, size_t size) -{ - hoedown_buffer work = { NULL, 0, 0, 0, NULL, NULL, NULL }; - size_t end, nb = 0, i, f_begin, f_end; - - /* counting the number of backticks in the delimiter */ - while (nb < size && data[nb] == '`') - nb++; - - /* finding the next delimiter */ - i = 0; - for (end = nb; end < size && i < nb; end++) { - if (data[end] == '`') i++; - else i = 0; - } - - if (i < nb && end >= size) - return 0; /* no matching delimiter */ - - /* trimming outside spaces */ - f_begin = nb; - while (f_begin < end && data[f_begin] == ' ') - f_begin++; - - f_end = end - nb; - while (f_end > nb && data[f_end-1] == ' ') - f_end--; - - /* real code span */ - if (f_begin < f_end) { - work.data = data + f_begin; - work.size = f_end - f_begin; - - if (!doc->md.codespan(ob, &work, &doc->data)) - end = 0; - } else { - if (!doc->md.codespan(ob, 0, &doc->data)) - end = 0; - } - - return end; -} - -/* char_quote • '"' parsing a quote */ -static size_t -char_quote(hoedown_buffer *ob, hoedown_document *doc, uint8_t *data, size_t offset, size_t size) -{ - size_t end, nq = 0, i, f_begin, f_end; - - /* counting the number of quotes in the delimiter */ - while (nq < size && data[nq] == '"') - nq++; - - /* finding the next delimiter */ - end = nq; - while (1) { - i = end; - end += find_emph_char(data + end, size - end, '"'); - if (end == i) return 0; /* no matching delimiter */ - i = end; - while (end < size && data[end] == '"' && end - i < nq) end++; - if (end - i >= nq) break; - } - - /* trimming outside spaces */ - f_begin = nq; - while (f_begin < end && data[f_begin] == ' ') - f_begin++; - - f_end = end - nq; - while (f_end > nq && data[f_end-1] == ' ') - f_end--; - - /* real quote */ - if (f_begin < f_end) { - hoedown_buffer *work = newbuf(doc, BUFFER_SPAN); - parse_inline(work, doc, data + f_begin, f_end - f_begin); - - if (!doc->md.quote(ob, work, &doc->data)) - end = 0; - popbuf(doc, BUFFER_SPAN); - } else { - if (!doc->md.quote(ob, 0, &doc->data)) - end = 0; - } - - return end; -} - - -/* char_escape • '\\' backslash escape */ -static size_t -char_escape(hoedown_buffer *ob, hoedown_document *doc, uint8_t *data, size_t offset, size_t size) -{ - static const char *escape_chars = "\\`*_{}[]()#+-.!:|&<>^~=\"$"; - hoedown_buffer work = { 0, 0, 0, 0, NULL, NULL, NULL }; - size_t w; - - if (size > 1) { - if (data[1] == '\\' && (doc->ext_flags & HOEDOWN_EXT_MATH) && - size > 2 && (data[2] == '(' || data[2] == '[')) { - const char *end = (data[2] == '[') ? "\\\\]" : "\\\\)"; - w = parse_math(ob, doc, data, offset, size, end, 3, data[2] == '['); - if (w) return w; - } - - if (strchr(escape_chars, data[1]) == NULL) - return 0; - - if (doc->md.normal_text) { - work.data = data + 1; - work.size = 1; - doc->md.normal_text(ob, &work, &doc->data); - } - else hoedown_buffer_putc(ob, data[1]); - } else if (size == 1) { - hoedown_buffer_putc(ob, data[0]); - } - - return 2; -} - -/* char_entity • '&' escaped when it doesn't belong to an entity */ -/* valid entities are assumed to be anything matching &#?[A-Za-z0-9]+; */ -static size_t -char_entity(hoedown_buffer *ob, hoedown_document *doc, uint8_t *data, size_t offset, size_t size) -{ - size_t end = 1; - hoedown_buffer work = { 0, 0, 0, 0, NULL, NULL, NULL }; - - if (end < size && data[end] == '#') - end++; - - while (end < size && isalnum(data[end])) - end++; - - if (end < size && data[end] == ';') - end++; /* real entity */ - else - return 0; /* lone '&' */ - - if (doc->md.entity) { - work.data = data; - work.size = end; - doc->md.entity(ob, &work, &doc->data); - } - else hoedown_buffer_put(ob, data, end); - - return end; -} - -/* char_langle_tag • '<' when tags or autolinks are allowed */ -static size_t -char_langle_tag(hoedown_buffer *ob, hoedown_document *doc, uint8_t *data, size_t offset, size_t size) -{ - hoedown_buffer work = { NULL, 0, 0, 0, NULL, NULL, NULL }; - hoedown_autolink_type altype = HOEDOWN_AUTOLINK_NONE; - size_t end = tag_length(data, size, &altype); - int ret = 0; - - work.data = data; - work.size = end; - - if (end > 2) { - if (doc->md.autolink && altype != HOEDOWN_AUTOLINK_NONE) { - hoedown_buffer *u_link = newbuf(doc, BUFFER_SPAN); - work.data = data + 1; - work.size = end - 2; - unscape_text(u_link, &work); - ret = doc->md.autolink(ob, u_link, altype, &doc->data); - popbuf(doc, BUFFER_SPAN); - } - else if (doc->md.raw_html) - ret = doc->md.raw_html(ob, &work, &doc->data); - } - - if (!ret) return 0; - else return end; -} - -static size_t -char_autolink_www(hoedown_buffer *ob, hoedown_document *doc, uint8_t *data, size_t offset, size_t size) -{ - hoedown_buffer *link, *link_url, *link_text; - size_t link_len, rewind; - - if (!doc->md.link || doc->in_link_body) - return 0; - - link = newbuf(doc, BUFFER_SPAN); - - if ((link_len = hoedown_autolink__www(&rewind, link, data, offset, size, HOEDOWN_AUTOLINK_SHORT_DOMAINS)) > 0) { - link_url = newbuf(doc, BUFFER_SPAN); - HOEDOWN_BUFPUTSL(link_url, "http://"); - hoedown_buffer_put(link_url, link->data, link->size); - - ob->size -= rewind; - if (doc->md.normal_text) { - link_text = newbuf(doc, BUFFER_SPAN); - doc->md.normal_text(link_text, link, &doc->data); - doc->md.link(ob, link_text, link_url, NULL, &doc->data); - popbuf(doc, BUFFER_SPAN); - } else { - doc->md.link(ob, link, link_url, NULL, &doc->data); - } - popbuf(doc, BUFFER_SPAN); - } - - popbuf(doc, BUFFER_SPAN); - return link_len; -} - -static size_t -char_autolink_email(hoedown_buffer *ob, hoedown_document *doc, uint8_t *data, size_t offset, size_t size) -{ - hoedown_buffer *link; - size_t link_len, rewind; - - if (!doc->md.autolink || doc->in_link_body) - return 0; - - link = newbuf(doc, BUFFER_SPAN); - - if ((link_len = hoedown_autolink__email(&rewind, link, data, offset, size, 0)) > 0) { - ob->size -= rewind; - doc->md.autolink(ob, link, HOEDOWN_AUTOLINK_EMAIL, &doc->data); - } - - popbuf(doc, BUFFER_SPAN); - return link_len; -} - -static size_t -char_autolink_url(hoedown_buffer *ob, hoedown_document *doc, uint8_t *data, size_t offset, size_t size) -{ - hoedown_buffer *link; - size_t link_len, rewind; - - if (!doc->md.autolink || doc->in_link_body) - return 0; - - link = newbuf(doc, BUFFER_SPAN); - - if ((link_len = hoedown_autolink__url(&rewind, link, data, offset, size, 0)) > 0) { - ob->size -= rewind; - doc->md.autolink(ob, link, HOEDOWN_AUTOLINK_NORMAL, &doc->data); - } - - popbuf(doc, BUFFER_SPAN); - return link_len; -} - -/* char_link • '[': parsing a link, a footnote or an image */ -static size_t -char_link(hoedown_buffer *ob, hoedown_document *doc, uint8_t *data, size_t offset, size_t size) -{ - int is_img = (offset && data[-1] == '!' && !is_escaped(data - offset, offset - 1)); - int is_footnote = (doc->ext_flags & HOEDOWN_EXT_FOOTNOTES && data[1] == '^'); - size_t i = 1, txt_e, link_b = 0, link_e = 0, title_b = 0, title_e = 0; - hoedown_buffer *content = NULL; - hoedown_buffer *link = NULL; - hoedown_buffer *title = NULL; - hoedown_buffer *u_link = NULL; - size_t org_work_size = doc->work_bufs[BUFFER_SPAN].size; - int ret = 0, in_title = 0, qtype = 0; - - /* checking whether the correct renderer exists */ - if ((is_footnote && !doc->md.footnote_ref) || (is_img && !doc->md.image) - || (!is_img && !is_footnote && !doc->md.link)) - goto cleanup; - - /* looking for the matching closing bracket */ - i += find_emph_char(data + i, size - i, ']'); - txt_e = i; - - if (i < size && data[i] == ']') i++; - else goto cleanup; - - /* footnote link */ - if (is_footnote) { - hoedown_buffer id = { NULL, 0, 0, 0, NULL, NULL, NULL }; - struct footnote_ref *fr; - - if (txt_e < 3) - goto cleanup; - - id.data = data + 2; - id.size = txt_e - 2; - - fr = find_footnote_ref(&doc->footnotes_found, id.data, id.size); - - /* mark footnote used */ - if (fr && !fr->is_used) { - if(!add_footnote_ref(&doc->footnotes_used, fr)) - goto cleanup; - fr->is_used = 1; - fr->num = doc->footnotes_used.count; - - /* render */ - if (doc->md.footnote_ref) - ret = doc->md.footnote_ref(ob, fr->num, &doc->data); - } - - goto cleanup; - } - - /* skip any amount of spacing */ - /* (this is much more laxist than original markdown syntax) */ - while (i < size && _isspace(data[i])) - i++; - - /* inline style link */ - if (i < size && data[i] == '(') { - size_t nb_p; - - /* skipping initial spacing */ - i++; - - while (i < size && _isspace(data[i])) - i++; - - link_b = i; - - /* looking for link end: ' " ) */ - /* Count the number of open parenthesis */ - nb_p = 0; - - while (i < size) { - if (data[i] == '\\') i += 2; - else if (data[i] == '(' && i != 0) { - nb_p++; i++; - } - else if (data[i] == ')') { - if (nb_p == 0) break; - else nb_p--; i++; - } else if (i >= 1 && _isspace(data[i-1]) && (data[i] == '\'' || data[i] == '"')) break; - else i++; - } - - if (i >= size) goto cleanup; - link_e = i; - - /* looking for title end if present */ - if (data[i] == '\'' || data[i] == '"') { - qtype = data[i]; - in_title = 1; - i++; - title_b = i; - - while (i < size) { - if (data[i] == '\\') i += 2; - else if (data[i] == qtype) {in_title = 0; i++;} - else if ((data[i] == ')') && !in_title) break; - else i++; - } - - if (i >= size) goto cleanup; - - /* skipping spacing after title */ - title_e = i - 1; - while (title_e > title_b && _isspace(data[title_e])) - title_e--; - - /* checking for closing quote presence */ - if (data[title_e] != '\'' && data[title_e] != '"') { - title_b = title_e = 0; - link_e = i; - } - } - - /* remove spacing at the end of the link */ - while (link_e > link_b && _isspace(data[link_e - 1])) - link_e--; - - /* remove optional angle brackets around the link */ - if (data[link_b] == '<') link_b++; - if (data[link_e - 1] == '>') link_e--; - - /* building escaped link and title */ - if (link_e > link_b) { - link = newbuf(doc, BUFFER_SPAN); - hoedown_buffer_put(link, data + link_b, link_e - link_b); - } - - if (title_e > title_b) { - title = newbuf(doc, BUFFER_SPAN); - hoedown_buffer_put(title, data + title_b, title_e - title_b); - } - - i++; - } - - /* reference style link */ - else if (i < size && data[i] == '[') { - hoedown_buffer *id = newbuf(doc, BUFFER_SPAN); - struct link_ref *lr; - - /* looking for the id */ - i++; - link_b = i; - while (i < size && data[i] != ']') i++; - if (i >= size) goto cleanup; - link_e = i; - - /* finding the link_ref */ - if (link_b == link_e) - replace_spacing(id, data + 1, txt_e - 1); - else - hoedown_buffer_put(id, data + link_b, link_e - link_b); - - lr = find_link_ref(doc->refs, id->data, id->size); - if (!lr) - goto cleanup; - - /* keeping link and title from link_ref */ - link = lr->link; - title = lr->title; - i++; - } - - /* shortcut reference style link */ - else { - hoedown_buffer *id = newbuf(doc, BUFFER_SPAN); - struct link_ref *lr; - - /* crafting the id */ - replace_spacing(id, data + 1, txt_e - 1); - - /* finding the link_ref */ - lr = find_link_ref(doc->refs, id->data, id->size); - if (!lr) - goto cleanup; - - /* keeping link and title from link_ref */ - link = lr->link; - title = lr->title; - - /* rewinding the spacing */ - i = txt_e + 1; - } - - /* building content: img alt is kept, only link content is parsed */ - if (txt_e > 1) { - content = newbuf(doc, BUFFER_SPAN); - if (is_img) { - hoedown_buffer_put(content, data + 1, txt_e - 1); - } else { - /* disable autolinking when parsing inline the - * content of a link */ - doc->in_link_body = 1; - parse_inline(content, doc, data + 1, txt_e - 1); - doc->in_link_body = 0; - } - } - - if (link) { - u_link = newbuf(doc, BUFFER_SPAN); - unscape_text(u_link, link); - } - - /* calling the relevant rendering function */ - if (is_img) { - if (ob->size && ob->data[ob->size - 1] == '!') - ob->size -= 1; - - ret = doc->md.image(ob, u_link, title, content, &doc->data); - } else { - ret = doc->md.link(ob, content, u_link, title, &doc->data); - } - - /* cleanup */ -cleanup: - doc->work_bufs[BUFFER_SPAN].size = (int)org_work_size; - return ret ? i : 0; -} - -static size_t -char_superscript(hoedown_buffer *ob, hoedown_document *doc, uint8_t *data, size_t offset, size_t size) -{ - size_t sup_start, sup_len; - hoedown_buffer *sup; - - if (!doc->md.superscript) - return 0; - - if (size < 2) - return 0; - - if (data[1] == '(') { - sup_start = 2; - sup_len = find_emph_char(data + 2, size - 2, ')') + 2; - - if (sup_len == size) - return 0; - } else { - sup_start = sup_len = 1; - - while (sup_len < size && !_isspace(data[sup_len])) - sup_len++; - } - - if (sup_len - sup_start == 0) - return (sup_start == 2) ? 3 : 0; - - sup = newbuf(doc, BUFFER_SPAN); - parse_inline(sup, doc, data + sup_start, sup_len - sup_start); - doc->md.superscript(ob, sup, &doc->data); - popbuf(doc, BUFFER_SPAN); - - return (sup_start == 2) ? sup_len + 1 : sup_len; -} - -static size_t -char_math(hoedown_buffer *ob, hoedown_document *doc, uint8_t *data, size_t offset, size_t size) -{ - /* double dollar */ - if (size > 1 && data[1] == '$') - return parse_math(ob, doc, data, offset, size, "$$", 2, 1); - - /* single dollar allowed only with MATH_EXPLICIT flag */ - if (doc->ext_flags & HOEDOWN_EXT_MATH_EXPLICIT) - return parse_math(ob, doc, data, offset, size, "$", 1, 0); - - return 0; -} - -/********************************* - * BLOCK-LEVEL PARSING FUNCTIONS * - *********************************/ - -/* is_empty • returns the line length when it is empty, 0 otherwise */ -static size_t -is_empty(const uint8_t *data, size_t size) -{ - size_t i; - - for (i = 0; i < size && data[i] != '\n'; i++) - if (data[i] != ' ') - return 0; - - return i + 1; -} - -/* is_hrule • returns whether a line is a horizontal rule */ -static int -is_hrule(uint8_t *data, size_t size) -{ - size_t i = 0, n = 0; - uint8_t c; - - /* skipping initial spaces */ - if (size < 3) return 0; - if (data[0] == ' ') { i++; - if (data[1] == ' ') { i++; - if (data[2] == ' ') { i++; } } } - - /* looking at the hrule uint8_t */ - if (i + 2 >= size - || (data[i] != '*' && data[i] != '-' && data[i] != '_')) - return 0; - c = data[i]; - - /* the whole line must be the char or space */ - while (i < size && data[i] != '\n') { - if (data[i] == c) n++; - else if (data[i] != ' ') - return 0; - - i++; - } - - return n >= 3; -} - -/* check if a line is a code fence; return the - * end of the code fence. if passed, width of - * the fence rule and character will be returned */ -static size_t -is_codefence(uint8_t *data, size_t size, size_t *width, uint8_t *chr) -{ - size_t i = 0, n = 1; - uint8_t c; - - /* skipping initial spaces */ - if (size < 3) - return 0; - - if (data[0] == ' ') { i++; - if (data[1] == ' ') { i++; - if (data[2] == ' ') { i++; } } } - - /* looking at the hrule uint8_t */ - c = data[i]; - if (i + 2 >= size || !(c=='~' || c=='`')) - return 0; - - /* the fence must be that same character */ - while (++i < size && data[i] == c) - ++n; - - if (n < 3) - return 0; - - if (width) *width = n; - if (chr) *chr = c; - return i; -} - -/* expects single line, checks if it's a codefence and extracts language */ -static size_t -parse_codefence(uint8_t *data, size_t size, hoedown_buffer *lang, size_t *width, uint8_t *chr) -{ - size_t i, w, lang_start; - - i = w = is_codefence(data, size, width, chr); - if (i == 0) - return 0; - - while (i < size && _isspace(data[i])) - i++; - - lang_start = i; - - while (i < size && !_isspace(data[i])) - i++; - - lang->data = data + lang_start; - lang->size = i - lang_start; - - /* Avoid parsing a codespan as a fence */ - i = lang_start + 2; - while (i < size && !(data[i] == *chr && data[i-1] == *chr && data[i-2] == *chr)) i++; - if (i < size) return 0; - - return w; -} - -/* is_atxheader • returns whether the line is a hash-prefixed header */ -static int -is_atxheader(hoedown_document *doc, uint8_t *data, size_t size) -{ - if (data[0] != '#') - return 0; - - if (doc->ext_flags & HOEDOWN_EXT_SPACE_HEADERS) { - size_t level = 0; - - while (level < size && level < 6 && data[level] == '#') - level++; - - if (level < size && data[level] != ' ') - return 0; - } - - return 1; -} - -/* is_headerline • returns whether the line is a setext-style hdr underline */ -static int -is_headerline(uint8_t *data, size_t size) -{ - size_t i = 0; - - /* test of level 1 header */ - if (data[i] == '=') { - for (i = 1; i < size && data[i] == '='; i++); - while (i < size && data[i] == ' ') i++; - return (i >= size || data[i] == '\n') ? 1 : 0; } - - /* test of level 2 header */ - if (data[i] == '-') { - for (i = 1; i < size && data[i] == '-'; i++); - while (i < size && data[i] == ' ') i++; - return (i >= size || data[i] == '\n') ? 2 : 0; } - - return 0; -} - -static int -is_next_headerline(uint8_t *data, size_t size) -{ - size_t i = 0; - - while (i < size && data[i] != '\n') - i++; - - if (++i >= size) - return 0; - - return is_headerline(data + i, size - i); -} - -/* prefix_quote • returns blockquote prefix length */ -static size_t -prefix_quote(uint8_t *data, size_t size) -{ - size_t i = 0; - if (i < size && data[i] == ' ') i++; - if (i < size && data[i] == ' ') i++; - if (i < size && data[i] == ' ') i++; - - if (i < size && data[i] == '>') { - if (i + 1 < size && data[i + 1] == ' ') - return i + 2; - - return i + 1; - } - - return 0; -} - -/* prefix_code • returns prefix length for block code*/ -static size_t -prefix_code(uint8_t *data, size_t size) -{ - if (size > 3 && data[0] == ' ' && data[1] == ' ' - && data[2] == ' ' && data[3] == ' ') return 4; - - return 0; -} - -/* prefix_oli • returns ordered list item prefix */ -static size_t -prefix_oli(uint8_t *data, size_t size) -{ - size_t i = 0; - - if (i < size && data[i] == ' ') i++; - if (i < size && data[i] == ' ') i++; - if (i < size && data[i] == ' ') i++; - - if (i >= size || data[i] < '0' || data[i] > '9') - return 0; - - while (i < size && data[i] >= '0' && data[i] <= '9') - i++; - - if (i + 1 >= size || data[i] != '.' || data[i + 1] != ' ') - return 0; - - if (is_next_headerline(data + i, size - i)) - return 0; - - return i + 2; -} - -/* prefix_uli • returns ordered list item prefix */ -static size_t -prefix_uli(uint8_t *data, size_t size) -{ - size_t i = 0; - - if (i < size && data[i] == ' ') i++; - if (i < size && data[i] == ' ') i++; - if (i < size && data[i] == ' ') i++; - - if (i + 1 >= size || - (data[i] != '*' && data[i] != '+' && data[i] != '-') || - data[i + 1] != ' ') - return 0; - - if (is_next_headerline(data + i, size - i)) - return 0; - - return i + 2; -} - - -/* parse_block • parsing of one block, returning next uint8_t to parse */ -static void parse_block(hoedown_buffer *ob, hoedown_document *doc, - uint8_t *data, size_t size); - - -/* parse_blockquote • handles parsing of a blockquote fragment */ -static size_t -parse_blockquote(hoedown_buffer *ob, hoedown_document *doc, uint8_t *data, size_t size) -{ - size_t beg, end = 0, pre, work_size = 0; - uint8_t *work_data = 0; - hoedown_buffer *out = 0; - - out = newbuf(doc, BUFFER_BLOCK); - beg = 0; - while (beg < size) { - for (end = beg + 1; end < size && data[end - 1] != '\n'; end++); - - pre = prefix_quote(data + beg, end - beg); - - if (pre) - beg += pre; /* skipping prefix */ - - /* empty line followed by non-quote line */ - else if (is_empty(data + beg, end - beg) && - (end >= size || (prefix_quote(data + end, size - end) == 0 && - !is_empty(data + end, size - end)))) - break; - - if (beg < end) { /* copy into the in-place working buffer */ - /* hoedown_buffer_put(work, data + beg, end - beg); */ - if (!work_data) - work_data = data + beg; - else if (data + beg != work_data + work_size) - memmove(work_data + work_size, data + beg, end - beg); - work_size += end - beg; - } - beg = end; - } - - parse_block(out, doc, work_data, work_size); - if (doc->md.blockquote) - doc->md.blockquote(ob, out, &doc->data); - popbuf(doc, BUFFER_BLOCK); - return end; -} - -static size_t -parse_htmlblock(hoedown_buffer *ob, hoedown_document *doc, uint8_t *data, size_t size, int do_render); - -/* parse_blockquote • handles parsing of a regular paragraph */ -static size_t -parse_paragraph(hoedown_buffer *ob, hoedown_document *doc, uint8_t *data, size_t size) -{ - hoedown_buffer work = { NULL, 0, 0, 0, NULL, NULL, NULL }; - size_t i = 0, end = 0; - int level = 0; - - work.data = data; - - while (i < size) { - for (end = i + 1; end < size && data[end - 1] != '\n'; end++) /* empty */; - - if (is_empty(data + i, size - i)) - break; - - if ((level = is_headerline(data + i, size - i)) != 0) - break; - - if (is_atxheader(doc, data + i, size - i) || - is_hrule(data + i, size - i) || - prefix_quote(data + i, size - i)) { - end = i; - break; - } - - i = end; - } - - work.size = i; - while (work.size && data[work.size - 1] == '\n') - work.size--; - - if (!level) { - hoedown_buffer *tmp = newbuf(doc, BUFFER_BLOCK); - parse_inline(tmp, doc, work.data, work.size); - if (doc->md.paragraph) - doc->md.paragraph(ob, tmp, &doc->data); - popbuf(doc, BUFFER_BLOCK); - } else { - hoedown_buffer *header_work; - - if (work.size) { - size_t beg; - i = work.size; - work.size -= 1; - - while (work.size && data[work.size] != '\n') - work.size -= 1; - - beg = work.size + 1; - while (work.size && data[work.size - 1] == '\n') - work.size -= 1; - - if (work.size > 0) { - hoedown_buffer *tmp = newbuf(doc, BUFFER_BLOCK); - parse_inline(tmp, doc, work.data, work.size); - - if (doc->md.paragraph) - doc->md.paragraph(ob, tmp, &doc->data); - - popbuf(doc, BUFFER_BLOCK); - work.data += beg; - work.size = i - beg; - } - else work.size = i; - } - - header_work = newbuf(doc, BUFFER_SPAN); - parse_inline(header_work, doc, work.data, work.size); - - if (doc->md.header) - doc->md.header(ob, header_work, (int)level, &doc->data); - - popbuf(doc, BUFFER_SPAN); - } - - return end; -} - -/* parse_fencedcode • handles parsing of a block-level code fragment */ -static size_t -parse_fencedcode(hoedown_buffer *ob, hoedown_document *doc, uint8_t *data, size_t size) -{ - hoedown_buffer text = { 0, 0, 0, 0, NULL, NULL, NULL }; - hoedown_buffer lang = { 0, 0, 0, 0, NULL, NULL, NULL }; - size_t i = 0, text_start, line_start; - size_t w, w2; - size_t width, width2; - uint8_t chr, chr2; - - /* parse codefence line */ - while (i < size && data[i] != '\n') - i++; - - w = parse_codefence(data, i, &lang, &width, &chr); - if (!w) - return 0; - - /* search for end */ - i++; - text_start = i; - while ((line_start = i) < size) { - while (i < size && data[i] != '\n') - i++; - - w2 = is_codefence(data + line_start, i - line_start, &width2, &chr2); - if (w == w2 && width == width2 && chr == chr2 && - is_empty(data + (line_start+w), i - (line_start+w))) - break; - - i++; - } - - text.data = data + text_start; - text.size = line_start - text_start; - - if (doc->md.blockcode) - doc->md.blockcode(ob, text.size ? &text : NULL, lang.size ? &lang : NULL, &doc->data); - - return i; -} - -static size_t -parse_blockcode(hoedown_buffer *ob, hoedown_document *doc, uint8_t *data, size_t size) -{ - size_t beg, end, pre; - hoedown_buffer *work = 0; - - work = newbuf(doc, BUFFER_BLOCK); - - beg = 0; - while (beg < size) { - for (end = beg + 1; end < size && data[end - 1] != '\n'; end++) {}; - pre = prefix_code(data + beg, end - beg); - - if (pre) - beg += pre; /* skipping prefix */ - else if (!is_empty(data + beg, end - beg)) - /* non-empty non-prefixed line breaks the pre */ - break; - - if (beg < end) { - /* verbatim copy to the working buffer, - escaping entities */ - if (is_empty(data + beg, end - beg)) - hoedown_buffer_putc(work, '\n'); - else hoedown_buffer_put(work, data + beg, end - beg); - } - beg = end; - } - - while (work->size && work->data[work->size - 1] == '\n') - work->size -= 1; - - hoedown_buffer_putc(work, '\n'); - - if (doc->md.blockcode) - doc->md.blockcode(ob, work, NULL, &doc->data); - - popbuf(doc, BUFFER_BLOCK); - return beg; -} - -/* parse_listitem • parsing of a single list item */ -/* assuming initial prefix is already removed */ -static size_t -parse_listitem(hoedown_buffer *ob, hoedown_document *doc, uint8_t *data, size_t size, hoedown_list_flags *flags) -{ - hoedown_buffer *work = 0, *inter = 0; - size_t beg = 0, end, pre, sublist = 0, orgpre = 0, i; - int in_empty = 0, has_inside_empty = 0, in_fence = 0; - - /* keeping track of the first indentation prefix */ - while (orgpre < 3 && orgpre < size && data[orgpre] == ' ') - orgpre++; - - beg = prefix_uli(data, size); - if (!beg) - beg = prefix_oli(data, size); - - if (!beg) - return 0; - - /* skipping to the beginning of the following line */ - end = beg; - while (end < size && data[end - 1] != '\n') - end++; - - /* getting working buffers */ - work = newbuf(doc, BUFFER_SPAN); - inter = newbuf(doc, BUFFER_SPAN); - - /* putting the first line into the working buffer */ - hoedown_buffer_put(work, data + beg, end - beg); - beg = end; - - /* process the following lines */ - while (beg < size) { - size_t has_next_uli = 0, has_next_oli = 0; - - end++; - - while (end < size && data[end - 1] != '\n') - end++; - - /* process an empty line */ - if (is_empty(data + beg, end - beg)) { - in_empty = 1; - beg = end; - continue; - } - - /* calculating the indentation */ - i = 0; - while (i < 4 && beg + i < end && data[beg + i] == ' ') - i++; - - pre = i; - - if (doc->ext_flags & HOEDOWN_EXT_FENCED_CODE) { - if (is_codefence(data + beg + i, end - beg - i, NULL, NULL)) - in_fence = !in_fence; - } - - /* Only check for new list items if we are **not** inside - * a fenced code block */ - if (!in_fence) { - has_next_uli = prefix_uli(data + beg + i, end - beg - i); - has_next_oli = prefix_oli(data + beg + i, end - beg - i); - } - - /* checking for a new item */ - if ((has_next_uli && !is_hrule(data + beg + i, end - beg - i)) || has_next_oli) { - if (in_empty) - has_inside_empty = 1; - - /* the following item must have the same (or less) indentation */ - if (pre <= orgpre) { - /* if the following item has different list type, we end this list */ - if (in_empty && ( - ((*flags & HOEDOWN_LIST_ORDERED) && has_next_uli) || - (!(*flags & HOEDOWN_LIST_ORDERED) && has_next_oli))) - *flags |= HOEDOWN_LI_END; - - break; - } - - if (!sublist) - sublist = work->size; - } - /* joining only indented stuff after empty lines; - * note that now we only require 1 space of indentation - * to continue a list */ - else if (in_empty && pre == 0) { - *flags |= HOEDOWN_LI_END; - break; - } - - if (in_empty) { - hoedown_buffer_putc(work, '\n'); - has_inside_empty = 1; - in_empty = 0; - } - - /* adding the line without prefix into the working buffer */ - hoedown_buffer_put(work, data + beg + i, end - beg - i); - beg = end; - } - - /* render of li contents */ - if (has_inside_empty) - *flags |= HOEDOWN_LI_BLOCK; - - if (*flags & HOEDOWN_LI_BLOCK) { - /* intermediate render of block li */ - if (sublist && sublist < work->size) { - parse_block(inter, doc, work->data, sublist); - parse_block(inter, doc, work->data + sublist, work->size - sublist); - } - else - parse_block(inter, doc, work->data, work->size); - } else { - /* intermediate render of inline li */ - if (sublist && sublist < work->size) { - parse_inline(inter, doc, work->data, sublist); - parse_block(inter, doc, work->data + sublist, work->size - sublist); - } - else - parse_inline(inter, doc, work->data, work->size); - } - - /* render of li itself */ - if (doc->md.listitem) - doc->md.listitem(ob, inter, *flags, &doc->data); - - popbuf(doc, BUFFER_SPAN); - popbuf(doc, BUFFER_SPAN); - return beg; -} - - -/* parse_list • parsing ordered or unordered list block */ -static size_t -parse_list(hoedown_buffer *ob, hoedown_document *doc, uint8_t *data, size_t size, hoedown_list_flags flags) -{ - hoedown_buffer *work = 0; - size_t i = 0, j; - - work = newbuf(doc, BUFFER_BLOCK); - - while (i < size) { - j = parse_listitem(work, doc, data + i, size - i, &flags); - i += j; - - if (!j || (flags & HOEDOWN_LI_END)) - break; - } - - if (doc->md.list) - doc->md.list(ob, work, flags, &doc->data); - popbuf(doc, BUFFER_BLOCK); - return i; -} - -/* parse_atxheader • parsing of atx-style headers */ -static size_t -parse_atxheader(hoedown_buffer *ob, hoedown_document *doc, uint8_t *data, size_t size) -{ - size_t level = 0; - size_t i, end, skip; - - while (level < size && level < 6 && data[level] == '#') - level++; - - for (i = level; i < size && data[i] == ' '; i++); - - for (end = i; end < size && data[end] != '\n'; end++); - skip = end; - - while (end && data[end - 1] == '#') - end--; - - while (end && data[end - 1] == ' ') - end--; - - if (end > i) { - hoedown_buffer *work = newbuf(doc, BUFFER_SPAN); - - parse_inline(work, doc, data + i, end - i); - - if (doc->md.header) - doc->md.header(ob, work, (int)level, &doc->data); - - popbuf(doc, BUFFER_SPAN); - } - - return skip; -} - -/* parse_footnote_def • parse a single footnote definition */ -static void -parse_footnote_def(hoedown_buffer *ob, hoedown_document *doc, unsigned int num, uint8_t *data, size_t size) -{ - hoedown_buffer *work = 0; - work = newbuf(doc, BUFFER_SPAN); - - parse_block(work, doc, data, size); - - if (doc->md.footnote_def) - doc->md.footnote_def(ob, work, num, &doc->data); - popbuf(doc, BUFFER_SPAN); -} - -/* parse_footnote_list • render the contents of the footnotes */ -static void -parse_footnote_list(hoedown_buffer *ob, hoedown_document *doc, struct footnote_list *footnotes) -{ - hoedown_buffer *work = 0; - struct footnote_item *item; - struct footnote_ref *ref; - - if (footnotes->count == 0) - return; - - work = newbuf(doc, BUFFER_BLOCK); - - item = footnotes->head; - while (item) { - ref = item->ref; - parse_footnote_def(work, doc, ref->num, ref->contents->data, ref->contents->size); - item = item->next; - } - - if (doc->md.footnotes) - doc->md.footnotes(ob, work, &doc->data); - popbuf(doc, BUFFER_BLOCK); -} - -/* htmlblock_is_end • check for end of HTML block : </tag>( *)\n */ -/* returns tag length on match, 0 otherwise */ -/* assumes data starts with "<" */ -static size_t -htmlblock_is_end( - const char *tag, - size_t tag_len, - hoedown_document *doc, - uint8_t *data, - size_t size) -{ - size_t i = tag_len + 3, w; - - /* try to match the end tag */ - /* note: we're not considering tags like "</tag >" which are still valid */ - if (i > size || - data[1] != '/' || - strncasecmp((char *)data + 2, tag, tag_len) != 0 || - data[tag_len + 2] != '>') - return 0; - - /* rest of the line must be empty */ - if ((w = is_empty(data + i, size - i)) == 0 && i < size) - return 0; - - return i + w; -} - -/* htmlblock_find_end • try to find HTML block ending tag */ -/* returns the length on match, 0 otherwise */ -static size_t -htmlblock_find_end( - const char *tag, - size_t tag_len, - hoedown_document *doc, - uint8_t *data, - size_t size) -{ - size_t i = 0, w; - - while (1) { - while (i < size && data[i] != '<') i++; - if (i >= size) return 0; - - w = htmlblock_is_end(tag, tag_len, doc, data + i, size - i); - if (w) return i + w; - i++; - } -} - -/* htmlblock_find_end_strict • try to find end of HTML block in strict mode */ -/* (it must be an unindented line, and have a blank line afterwads) */ -/* returns the length on match, 0 otherwise */ -static size_t -htmlblock_find_end_strict( - const char *tag, - size_t tag_len, - hoedown_document *doc, - uint8_t *data, - size_t size) -{ - size_t i = 0, mark; - - while (1) { - mark = i; - while (i < size && data[i] != '\n') i++; - if (i < size) i++; - if (i == mark) return 0; - - if (data[mark] == ' ' && mark > 0) continue; - mark += htmlblock_find_end(tag, tag_len, doc, data + mark, i - mark); - if (mark == i && (is_empty(data + i, size - i) || i >= size)) break; - } - - return i; -} - -/* parse_htmlblock • parsing of inline HTML block */ -static size_t -parse_htmlblock(hoedown_buffer *ob, hoedown_document *doc, uint8_t *data, size_t size, int do_render) -{ - hoedown_buffer work = { NULL, 0, 0, 0, NULL, NULL, NULL }; - size_t i, j = 0, tag_len, tag_end; - const char *curtag = NULL; - - work.data = data; - - /* identification of the opening tag */ - if (size < 2 || data[0] != '<') - return 0; - - i = 1; - while (i < size && data[i] != '>' && data[i] != ' ') - i++; - - if (i < size) - curtag = hoedown_find_block_tag((char *)data + 1, (int)i - 1); - - /* handling of special cases */ - if (!curtag) { - - /* HTML comment, laxist form */ - if (size > 5 && data[1] == '!' && data[2] == '-' && data[3] == '-') { - i = 5; - - while (i < size && !(data[i - 2] == '-' && data[i - 1] == '-' && data[i] == '>')) - i++; - - i++; - - if (i < size) - j = is_empty(data + i, size - i); - - if (j) { - work.size = i + j; - if (do_render && doc->md.blockhtml) - doc->md.blockhtml(ob, &work, &doc->data); - return work.size; - } - } - - /* HR, which is the only self-closing block tag considered */ - if (size > 4 && (data[1] == 'h' || data[1] == 'H') && (data[2] == 'r' || data[2] == 'R')) { - i = 3; - while (i < size && data[i] != '>') - i++; - - if (i + 1 < size) { - i++; - j = is_empty(data + i, size - i); - if (j) { - work.size = i + j; - if (do_render && doc->md.blockhtml) - doc->md.blockhtml(ob, &work, &doc->data); - return work.size; - } - } - } - - /* no special case recognised */ - return 0; - } - - /* looking for a matching closing tag in strict mode */ - tag_len = strlen(curtag); - tag_end = htmlblock_find_end_strict(curtag, tag_len, doc, data, size); - - /* if not found, trying a second pass looking for indented match */ - /* but not if tag is "ins" or "del" (following original Markdown.pl) */ - if (!tag_end && strcmp(curtag, "ins") != 0 && strcmp(curtag, "del") != 0) - tag_end = htmlblock_find_end(curtag, tag_len, doc, data, size); - - if (!tag_end) - return 0; - - /* the end of the block has been found */ - work.size = tag_end; - if (do_render && doc->md.blockhtml) - doc->md.blockhtml(ob, &work, &doc->data); - - return tag_end; -} - -static void -parse_table_row( - hoedown_buffer *ob, - hoedown_document *doc, - uint8_t *data, - size_t size, - size_t columns, - hoedown_table_flags *col_data, - hoedown_table_flags header_flag) -{ - size_t i = 0, col, len; - hoedown_buffer *row_work = 0; - - if (!doc->md.table_cell || !doc->md.table_row) - return; - - row_work = newbuf(doc, BUFFER_SPAN); - - if (i < size && data[i] == '|') - i++; - - for (col = 0; col < columns && i < size; ++col) { - size_t cell_start, cell_end; - hoedown_buffer *cell_work; - - cell_work = newbuf(doc, BUFFER_SPAN); - - while (i < size && _isspace(data[i])) - i++; - - cell_start = i; - - len = find_emph_char(data + i, size - i, '|'); - i += len ? len : size - i; - - cell_end = i - 1; - - while (cell_end > cell_start && _isspace(data[cell_end])) - cell_end--; - - parse_inline(cell_work, doc, data + cell_start, 1 + cell_end - cell_start); - doc->md.table_cell(row_work, cell_work, col_data[col] | header_flag, &doc->data); - - popbuf(doc, BUFFER_SPAN); - i++; - } - - for (; col < columns; ++col) { - hoedown_buffer empty_cell = { 0, 0, 0, 0, NULL, NULL, NULL }; - doc->md.table_cell(row_work, &empty_cell, col_data[col] | header_flag, &doc->data); - } - - doc->md.table_row(ob, row_work, &doc->data); - - popbuf(doc, BUFFER_SPAN); -} - -static size_t -parse_table_header( - hoedown_buffer *ob, - hoedown_document *doc, - uint8_t *data, - size_t size, - size_t *columns, - hoedown_table_flags **column_data) -{ - int pipes; - size_t i = 0, col, header_end, under_end; - - pipes = 0; - while (i < size && data[i] != '\n') - if (data[i++] == '|') - pipes++; - - if (i == size || pipes == 0) - return 0; - - header_end = i; - - while (header_end > 0 && _isspace(data[header_end - 1])) - header_end--; - - if (data[0] == '|') - pipes--; - - if (header_end && data[header_end - 1] == '|') - pipes--; - - if (pipes < 0) - return 0; - - *columns = pipes + 1; - *column_data = hoedown_calloc(*columns, sizeof(hoedown_table_flags)); - - /* Parse the header underline */ - i++; - if (i < size && data[i] == '|') - i++; - - under_end = i; - while (under_end < size && data[under_end] != '\n') - under_end++; - - for (col = 0; col < *columns && i < under_end; ++col) { - size_t dashes = 0; - - while (i < under_end && data[i] == ' ') - i++; - - if (data[i] == ':') { - i++; (*column_data)[col] |= HOEDOWN_TABLE_ALIGN_LEFT; - dashes++; - } - - while (i < under_end && data[i] == '-') { - i++; dashes++; - } - - if (i < under_end && data[i] == ':') { - i++; (*column_data)[col] |= HOEDOWN_TABLE_ALIGN_RIGHT; - dashes++; - } - - while (i < under_end && data[i] == ' ') - i++; - - if (i < under_end && data[i] != '|' && data[i] != '+') - break; - - if (dashes < 3) - break; - - i++; - } - - if (col < *columns) - return 0; - - parse_table_row( - ob, doc, data, - header_end, - *columns, - *column_data, - HOEDOWN_TABLE_HEADER - ); - - return under_end + 1; -} - -static size_t -parse_table( - hoedown_buffer *ob, - hoedown_document *doc, - uint8_t *data, - size_t size) -{ - size_t i; - - hoedown_buffer *work = 0; - hoedown_buffer *header_work = 0; - hoedown_buffer *body_work = 0; - - size_t columns; - hoedown_table_flags *col_data = NULL; - - work = newbuf(doc, BUFFER_BLOCK); - header_work = newbuf(doc, BUFFER_SPAN); - body_work = newbuf(doc, BUFFER_BLOCK); - - i = parse_table_header(header_work, doc, data, size, &columns, &col_data); - if (i > 0) { - - while (i < size) { - size_t row_start; - int pipes = 0; - - row_start = i; - - while (i < size && data[i] != '\n') - if (data[i++] == '|') - pipes++; - - if (pipes == 0 || i == size) { - i = row_start; - break; - } - - parse_table_row( - body_work, - doc, - data + row_start, - i - row_start, - columns, - col_data, 0 - ); - - i++; - } - - if (doc->md.table_header) - doc->md.table_header(work, header_work, &doc->data); - - if (doc->md.table_body) - doc->md.table_body(work, body_work, &doc->data); - - if (doc->md.table) - doc->md.table(ob, work, &doc->data); - } - - free(col_data); - popbuf(doc, BUFFER_SPAN); - popbuf(doc, BUFFER_BLOCK); - popbuf(doc, BUFFER_BLOCK); - return i; -} - -/* parse_block • parsing of one block, returning next uint8_t to parse */ -static void -parse_block(hoedown_buffer *ob, hoedown_document *doc, uint8_t *data, size_t size) -{ - size_t beg, end, i; - uint8_t *txt_data; - beg = 0; - - if (doc->work_bufs[BUFFER_SPAN].size + - doc->work_bufs[BUFFER_BLOCK].size > doc->max_nesting) - return; - - while (beg < size) { - txt_data = data + beg; - end = size - beg; - - if (is_atxheader(doc, txt_data, end)) - beg += parse_atxheader(ob, doc, txt_data, end); - - else if (data[beg] == '<' && doc->md.blockhtml && - (i = parse_htmlblock(ob, doc, txt_data, end, 1)) != 0) - beg += i; - - else if ((i = is_empty(txt_data, end)) != 0) - beg += i; - - else if (is_hrule(txt_data, end)) { - if (doc->md.hrule) - doc->md.hrule(ob, &doc->data); - - while (beg < size && data[beg] != '\n') - beg++; - - beg++; - } - - else if ((doc->ext_flags & HOEDOWN_EXT_FENCED_CODE) != 0 && - (i = parse_fencedcode(ob, doc, txt_data, end)) != 0) - beg += i; - - else if ((doc->ext_flags & HOEDOWN_EXT_TABLES) != 0 && - (i = parse_table(ob, doc, txt_data, end)) != 0) - beg += i; - - else if (prefix_quote(txt_data, end)) - beg += parse_blockquote(ob, doc, txt_data, end); - - else if (!(doc->ext_flags & HOEDOWN_EXT_DISABLE_INDENTED_CODE) && prefix_code(txt_data, end)) - beg += parse_blockcode(ob, doc, txt_data, end); - - else if (prefix_uli(txt_data, end)) - beg += parse_list(ob, doc, txt_data, end, 0); - - else if (prefix_oli(txt_data, end)) - beg += parse_list(ob, doc, txt_data, end, HOEDOWN_LIST_ORDERED); - - else - beg += parse_paragraph(ob, doc, txt_data, end); - } -} - - - -/********************* - * REFERENCE PARSING * - *********************/ - -/* is_footnote • returns whether a line is a footnote definition or not */ -static int -is_footnote(const uint8_t *data, size_t beg, size_t end, size_t *last, struct footnote_list *list) -{ - size_t i = 0; - hoedown_buffer *contents = 0; - size_t ind = 0; - int in_empty = 0; - size_t start = 0; - - size_t id_offset, id_end; - - /* up to 3 optional leading spaces */ - if (beg + 3 >= end) return 0; - if (data[beg] == ' ') { i = 1; - if (data[beg + 1] == ' ') { i = 2; - if (data[beg + 2] == ' ') { i = 3; - if (data[beg + 3] == ' ') return 0; } } } - i += beg; - - /* id part: caret followed by anything between brackets */ - if (data[i] != '[') return 0; - i++; - if (i >= end || data[i] != '^') return 0; - i++; - id_offset = i; - while (i < end && data[i] != '\n' && data[i] != '\r' && data[i] != ']') - i++; - if (i >= end || data[i] != ']') return 0; - id_end = i; - - /* spacer: colon (space | tab)* newline? (space | tab)* */ - i++; - if (i >= end || data[i] != ':') return 0; - i++; - - /* getting content buffer */ - contents = hoedown_buffer_new(64); - - start = i; - - /* process lines similar to a list item */ - while (i < end) { - while (i < end && data[i] != '\n' && data[i] != '\r') i++; - - /* process an empty line */ - if (is_empty(data + start, i - start)) { - in_empty = 1; - if (i < end && (data[i] == '\n' || data[i] == '\r')) { - i++; - if (i < end && data[i] == '\n' && data[i - 1] == '\r') i++; - } - start = i; - continue; - } - - /* calculating the indentation */ - ind = 0; - while (ind < 4 && start + ind < end && data[start + ind] == ' ') - ind++; - - /* joining only indented stuff after empty lines; - * note that now we only require 1 space of indentation - * to continue, just like lists */ - if (ind == 0) { - if (start == id_end + 2 && data[start] == '\t') {} - else break; - } - else if (in_empty) { - hoedown_buffer_putc(contents, '\n'); - } - - in_empty = 0; - - /* adding the line into the content buffer */ - hoedown_buffer_put(contents, data + start + ind, i - start - ind); - /* add carriage return */ - if (i < end) { - hoedown_buffer_putc(contents, '\n'); - if (i < end && (data[i] == '\n' || data[i] == '\r')) { - i++; - if (i < end && data[i] == '\n' && data[i - 1] == '\r') i++; - } - } - start = i; - } - - if (last) - *last = start; - - if (list) { - struct footnote_ref *ref; - ref = create_footnote_ref(list, data + id_offset, id_end - id_offset); - if (!ref) - return 0; - if (!add_footnote_ref(list, ref)) { - free_footnote_ref(ref); - return 0; - } - ref->contents = contents; - } - - return 1; -} - -/* is_ref • returns whether a line is a reference or not */ -static int -is_ref(const uint8_t *data, size_t beg, size_t end, size_t *last, struct link_ref **refs) -{ -/* int n; */ - size_t i = 0; - size_t id_offset, id_end; - size_t link_offset, link_end; - size_t title_offset, title_end; - size_t line_end; - - /* up to 3 optional leading spaces */ - if (beg + 3 >= end) return 0; - if (data[beg] == ' ') { i = 1; - if (data[beg + 1] == ' ') { i = 2; - if (data[beg + 2] == ' ') { i = 3; - if (data[beg + 3] == ' ') return 0; } } } - i += beg; - - /* id part: anything but a newline between brackets */ - if (data[i] != '[') return 0; - i++; - id_offset = i; - while (i < end && data[i] != '\n' && data[i] != '\r' && data[i] != ']') - i++; - if (i >= end || data[i] != ']') return 0; - id_end = i; - - /* spacer: colon (space | tab)* newline? (space | tab)* */ - i++; - if (i >= end || data[i] != ':') return 0; - i++; - while (i < end && data[i] == ' ') i++; - if (i < end && (data[i] == '\n' || data[i] == '\r')) { - i++; - if (i < end && data[i] == '\r' && data[i - 1] == '\n') i++; } - while (i < end && data[i] == ' ') i++; - if (i >= end) return 0; - - /* link: spacing-free sequence, optionally between angle brackets */ - if (data[i] == '<') - i++; - - link_offset = i; - - while (i < end && data[i] != ' ' && data[i] != '\n' && data[i] != '\r') - i++; - - if (data[i - 1] == '>') link_end = i - 1; - else link_end = i; - - /* optional spacer: (space | tab)* (newline | '\'' | '"' | '(' ) */ - while (i < end && data[i] == ' ') i++; - if (i < end && data[i] != '\n' && data[i] != '\r' - && data[i] != '\'' && data[i] != '"' && data[i] != '(') - return 0; - line_end = 0; - /* computing end-of-line */ - if (i >= end || data[i] == '\r' || data[i] == '\n') line_end = i; - if (i + 1 < end && data[i] == '\n' && data[i + 1] == '\r') - line_end = i + 1; - - /* optional (space|tab)* spacer after a newline */ - if (line_end) { - i = line_end + 1; - while (i < end && data[i] == ' ') i++; } - - /* optional title: any non-newline sequence enclosed in '"() - alone on its line */ - title_offset = title_end = 0; - if (i + 1 < end - && (data[i] == '\'' || data[i] == '"' || data[i] == '(')) { - i++; - title_offset = i; - /* looking for EOL */ - while (i < end && data[i] != '\n' && data[i] != '\r') i++; - if (i + 1 < end && data[i] == '\n' && data[i + 1] == '\r') - title_end = i + 1; - else title_end = i; - /* stepping back */ - i -= 1; - while (i > title_offset && data[i] == ' ') - i -= 1; - if (i > title_offset - && (data[i] == '\'' || data[i] == '"' || data[i] == ')')) { - line_end = title_end; - title_end = i; } } - - if (!line_end || link_end == link_offset) - return 0; /* garbage after the link empty link */ - - /* a valid ref has been found, filling-in return structures */ - if (last) - *last = line_end; - - if (refs) { - struct link_ref *ref; - - ref = add_link_ref(refs, data + id_offset, id_end - id_offset); - if (!ref) - return 0; - - ref->link = hoedown_buffer_new(link_end - link_offset); - hoedown_buffer_put(ref->link, data + link_offset, link_end - link_offset); - - if (title_end > title_offset) { - ref->title = hoedown_buffer_new(title_end - title_offset); - hoedown_buffer_put(ref->title, data + title_offset, title_end - title_offset); - } - } - - return 1; -} - -static void expand_tabs(hoedown_buffer *ob, const uint8_t *line, size_t size) -{ - /* This code makes two assumptions: - * - Input is valid UTF-8. (Any byte with top two bits 10 is skipped, - * whether or not it is a valid UTF-8 continuation byte.) - * - Input contains no combining characters. (Combining characters - * should be skipped but are not.) - */ - size_t i = 0, tab = 0; - - while (i < size) { - size_t org = i; - - while (i < size && line[i] != '\t') { - /* ignore UTF-8 continuation bytes */ - if ((line[i] & 0xc0) != 0x80) - tab++; - i++; - } - - if (i > org) - hoedown_buffer_put(ob, line + org, i - org); - - if (i >= size) - break; - - do { - hoedown_buffer_putc(ob, ' '); tab++; - } while (tab % 4); - - i++; - } -} - -/********************** - * EXPORTED FUNCTIONS * - **********************/ - -hoedown_document * -hoedown_document_new( - const hoedown_renderer *renderer, - hoedown_extensions extensions, - size_t max_nesting) -{ - hoedown_document *doc = NULL; - - assert(max_nesting > 0 && renderer); - - doc = hoedown_malloc(sizeof(hoedown_document)); - memcpy(&doc->md, renderer, sizeof(hoedown_renderer)); - - doc->data.opaque = renderer->opaque; - - hoedown_stack_init(&doc->work_bufs[BUFFER_BLOCK], 4); - hoedown_stack_init(&doc->work_bufs[BUFFER_SPAN], 8); - - memset(doc->active_char, 0x0, 256); - - if (extensions & HOEDOWN_EXT_UNDERLINE && doc->md.underline) { - doc->active_char['_'] = MD_CHAR_EMPHASIS; - } - - if (doc->md.emphasis || doc->md.double_emphasis || doc->md.triple_emphasis) { - doc->active_char['*'] = MD_CHAR_EMPHASIS; - doc->active_char['_'] = MD_CHAR_EMPHASIS; - if (extensions & HOEDOWN_EXT_STRIKETHROUGH) - doc->active_char['~'] = MD_CHAR_EMPHASIS; - if (extensions & HOEDOWN_EXT_HIGHLIGHT) - doc->active_char['='] = MD_CHAR_EMPHASIS; - } - - if (doc->md.codespan) - doc->active_char['`'] = MD_CHAR_CODESPAN; - - if (doc->md.linebreak) - doc->active_char['\n'] = MD_CHAR_LINEBREAK; - - if (doc->md.image || doc->md.link || doc->md.footnotes || doc->md.footnote_ref) - doc->active_char['['] = MD_CHAR_LINK; - - doc->active_char['<'] = MD_CHAR_LANGLE; - doc->active_char['\\'] = MD_CHAR_ESCAPE; - doc->active_char['&'] = MD_CHAR_ENTITY; - - if (extensions & HOEDOWN_EXT_AUTOLINK) { - doc->active_char[':'] = MD_CHAR_AUTOLINK_URL; - doc->active_char['@'] = MD_CHAR_AUTOLINK_EMAIL; - doc->active_char['w'] = MD_CHAR_AUTOLINK_WWW; - } - - if (extensions & HOEDOWN_EXT_SUPERSCRIPT) - doc->active_char['^'] = MD_CHAR_SUPERSCRIPT; - - if (extensions & HOEDOWN_EXT_QUOTE) - doc->active_char['"'] = MD_CHAR_QUOTE; - - if (extensions & HOEDOWN_EXT_MATH) - doc->active_char['$'] = MD_CHAR_MATH; - - /* Extension data */ - doc->ext_flags = extensions; - doc->max_nesting = max_nesting; - doc->in_link_body = 0; - - return doc; -} - -void -hoedown_document_render(hoedown_document *doc, hoedown_buffer *ob, const uint8_t *data, size_t size) -{ - static const uint8_t UTF8_BOM[] = {0xEF, 0xBB, 0xBF}; - - hoedown_buffer *text; - size_t beg, end; - - int footnotes_enabled; - - text = hoedown_buffer_new(64); - - /* Preallocate enough space for our buffer to avoid expanding while copying */ - hoedown_buffer_grow(text, size); - - /* reset the references table */ - memset(&doc->refs, 0x0, REF_TABLE_SIZE * sizeof(void *)); - - footnotes_enabled = doc->ext_flags & HOEDOWN_EXT_FOOTNOTES; - - /* reset the footnotes lists */ - if (footnotes_enabled) { - memset(&doc->footnotes_found, 0x0, sizeof(doc->footnotes_found)); - memset(&doc->footnotes_used, 0x0, sizeof(doc->footnotes_used)); - } - - /* first pass: looking for references, copying everything else */ - beg = 0; - - /* Skip a possible UTF-8 BOM, even though the Unicode standard - * discourages having these in UTF-8 documents */ - if (size >= 3 && memcmp(data, UTF8_BOM, 3) == 0) - beg += 3; - - while (beg < size) /* iterating over lines */ - if (footnotes_enabled && is_footnote(data, beg, size, &end, &doc->footnotes_found)) - beg = end; - else if (is_ref(data, beg, size, &end, doc->refs)) - beg = end; - else { /* skipping to the next line */ - end = beg; - while (end < size && data[end] != '\n' && data[end] != '\r') - end++; - - /* adding the line body if present */ - if (end > beg) - expand_tabs(text, data + beg, end - beg); - - while (end < size && (data[end] == '\n' || data[end] == '\r')) { - /* add one \n per newline */ - if (data[end] == '\n' || (end + 1 < size && data[end + 1] != '\n')) - hoedown_buffer_putc(text, '\n'); - end++; - } - - beg = end; - } - - /* pre-grow the output buffer to minimize allocations */ - hoedown_buffer_grow(ob, text->size + (text->size >> 1)); - - /* second pass: actual rendering */ - if (doc->md.doc_header) - doc->md.doc_header(ob, 0, &doc->data); - - if (text->size) { - /* adding a final newline if not already present */ - if (text->data[text->size - 1] != '\n' && text->data[text->size - 1] != '\r') - hoedown_buffer_putc(text, '\n'); - - parse_block(ob, doc, text->data, text->size); - } - - /* footnotes */ - if (footnotes_enabled) - parse_footnote_list(ob, doc, &doc->footnotes_used); - - if (doc->md.doc_footer) - doc->md.doc_footer(ob, 0, &doc->data); - - /* clean-up */ - hoedown_buffer_free(text); - free_link_refs(doc->refs); - if (footnotes_enabled) { - free_footnote_list(&doc->footnotes_found, 1); - free_footnote_list(&doc->footnotes_used, 0); - } - - assert(doc->work_bufs[BUFFER_SPAN].size == 0); - assert(doc->work_bufs[BUFFER_BLOCK].size == 0); -} - -void -hoedown_document_render_inline(hoedown_document *doc, hoedown_buffer *ob, const uint8_t *data, size_t size) -{ - size_t i = 0, mark; - hoedown_buffer *text = hoedown_buffer_new(64); - - /* reset the references table */ - memset(&doc->refs, 0x0, REF_TABLE_SIZE * sizeof(void *)); - - /* first pass: expand tabs and process newlines */ - hoedown_buffer_grow(text, size); - while (1) { - mark = i; - while (i < size && data[i] != '\n' && data[i] != '\r') - i++; - - expand_tabs(text, data + mark, i - mark); - - if (i >= size) - break; - - while (i < size && (data[i] == '\n' || data[i] == '\r')) { - /* add one \n per newline */ - if (data[i] == '\n' || (i + 1 < size && data[i + 1] != '\n')) - hoedown_buffer_putc(text, '\n'); - i++; - } - } - - /* second pass: actual rendering */ - hoedown_buffer_grow(ob, text->size + (text->size >> 1)); - - if (doc->md.doc_header) - doc->md.doc_header(ob, 1, &doc->data); - - parse_inline(ob, doc, text->data, text->size); - - if (doc->md.doc_footer) - doc->md.doc_footer(ob, 1, &doc->data); - - /* clean-up */ - hoedown_buffer_free(text); - - assert(doc->work_bufs[BUFFER_SPAN].size == 0); - assert(doc->work_bufs[BUFFER_BLOCK].size == 0); -} - -void -hoedown_document_free(hoedown_document *doc) -{ - size_t i; - - for (i = 0; i < (size_t)doc->work_bufs[BUFFER_SPAN].asize; ++i) - hoedown_buffer_free(doc->work_bufs[BUFFER_SPAN].item[i]); - - for (i = 0; i < (size_t)doc->work_bufs[BUFFER_BLOCK].asize; ++i) - hoedown_buffer_free(doc->work_bufs[BUFFER_BLOCK].item[i]); - - hoedown_stack_uninit(&doc->work_bufs[BUFFER_SPAN]); - hoedown_stack_uninit(&doc->work_bufs[BUFFER_BLOCK]); - - free(doc); -} diff --git a/depends/hoedown/src/escape.c b/depends/hoedown/src/escape.c deleted file mode 100644 index b4a275ba..00000000 --- a/depends/hoedown/src/escape.c +++ /dev/null @@ -1,188 +0,0 @@ -#include "hoedown/escape.h" - -#include <assert.h> -#include <stdio.h> -#include <string.h> - - -#define likely(x) __builtin_expect((x),1) -#define unlikely(x) __builtin_expect((x),0) - - -/* - * The following characters will not be escaped: - * - * -_.+!*'(),%#@?=;:/,+&$ alphanum - * - * Note that this character set is the addition of: - * - * - The characters which are safe to be in an URL - * - The characters which are *not* safe to be in - * an URL because they are RESERVED characters. - * - * We assume (lazily) that any RESERVED char that - * appears inside an URL is actually meant to - * have its native function (i.e. as an URL - * component/separator) and hence needs no escaping. - * - * There are two exceptions: the chacters & (amp) - * and ' (single quote) do not appear in the table. - * They are meant to appear in the URL as components, - * yet they require special HTML-entity escaping - * to generate valid HTML markup. - * - * All other characters will be escaped to %XX. - * - */ -static const uint8_t HREF_SAFE[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, 1, 0, 1, 1, 1, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, - 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 1, 0, 1, - 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, - 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 1, - 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, - 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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, 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, -}; - -void -hoedown_escape_href(hoedown_buffer *ob, const uint8_t *data, size_t size) -{ - static const char hex_chars[] = "0123456789ABCDEF"; - size_t i = 0, mark; - char hex_str[3]; - - hex_str[0] = '%'; - - while (i < size) { - mark = i; - while (i < size && HREF_SAFE[data[i]]) i++; - - /* Optimization for cases where there's nothing to escape */ - if (mark == 0 && i >= size) { - hoedown_buffer_put(ob, data, size); - return; - } - - if (likely(i > mark)) { - hoedown_buffer_put(ob, data + mark, i - mark); - } - - /* escaping */ - if (i >= size) - break; - - switch (data[i]) { - /* amp appears all the time in URLs, but needs - * HTML-entity escaping to be inside an href */ - case '&': - HOEDOWN_BUFPUTSL(ob, "&"); - break; - - /* the single quote is a valid URL character - * according to the standard; it needs HTML - * entity escaping too */ - case '\'': - HOEDOWN_BUFPUTSL(ob, "'"); - break; - - /* the space can be escaped to %20 or a plus - * sign. we're going with the generic escape - * for now. the plus thing is more commonly seen - * when building GET strings */ -#if 0 - case ' ': - hoedown_buffer_putc(ob, '+'); - break; -#endif - - /* every other character goes with a %XX escaping */ - default: - hex_str[1] = hex_chars[(data[i] >> 4) & 0xF]; - hex_str[2] = hex_chars[data[i] & 0xF]; - hoedown_buffer_put(ob, (uint8_t *)hex_str, 3); - } - - i++; - } -} - - -/** - * According to the OWASP rules: - * - * & --> & - * < --> < - * > --> > - * " --> " - * ' --> ' ' is not recommended - * / --> / forward slash is included as it helps end an HTML entity - * - */ -static const uint8_t HTML_ESCAPE_TABLE[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, 1, 0, 0, 0, 2, 3, 0, 0, 0, 0, 0, 0, 0, 4, - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 5, 0, 6, 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, 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 const char *HTML_ESCAPES[] = { - "", - """, - "&", - "'", - "/", - "<", - ">" -}; - -void -hoedown_escape_html(hoedown_buffer *ob, const uint8_t *data, size_t size, int secure) -{ - size_t i = 0, mark; - - while (1) { - mark = i; - while (i < size && HTML_ESCAPE_TABLE[data[i]] == 0) i++; - - /* Optimization for cases where there's nothing to escape */ - if (mark == 0 && i >= size) { - hoedown_buffer_put(ob, data, size); - return; - } - - if (likely(i > mark)) - hoedown_buffer_put(ob, data + mark, i - mark); - - if (i >= size) break; - - /* The forward slash is only escaped in secure mode */ - if (!secure && data[i] == '/') { - hoedown_buffer_putc(ob, '/'); - } else { - hoedown_buffer_puts(ob, HTML_ESCAPES[HTML_ESCAPE_TABLE[data[i]]]); - } - - i++; - } -} 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); -} diff --git a/depends/hoedown/src/html_blocks.c b/depends/hoedown/src/html_blocks.c deleted file mode 100644 index f5e9dce9..00000000 --- a/depends/hoedown/src/html_blocks.c +++ /dev/null @@ -1,240 +0,0 @@ -/* ANSI-C code produced by gperf version 3.0.3 */ -/* Command-line: gperf -L ANSI-C -N hoedown_find_block_tag -c -C -E -S 1 --ignore-case -m100 html_block_names.gperf */ -/* Computed positions: -k'1-2' */ - -#if !((' ' == 32) && ('!' == 33) && ('"' == 34) && ('#' == 35) \ - && ('%' == 37) && ('&' == 38) && ('\'' == 39) && ('(' == 40) \ - && (')' == 41) && ('*' == 42) && ('+' == 43) && (',' == 44) \ - && ('-' == 45) && ('.' == 46) && ('/' == 47) && ('0' == 48) \ - && ('1' == 49) && ('2' == 50) && ('3' == 51) && ('4' == 52) \ - && ('5' == 53) && ('6' == 54) && ('7' == 55) && ('8' == 56) \ - && ('9' == 57) && (':' == 58) && (';' == 59) && ('<' == 60) \ - && ('=' == 61) && ('>' == 62) && ('?' == 63) && ('A' == 65) \ - && ('B' == 66) && ('C' == 67) && ('D' == 68) && ('E' == 69) \ - && ('F' == 70) && ('G' == 71) && ('H' == 72) && ('I' == 73) \ - && ('J' == 74) && ('K' == 75) && ('L' == 76) && ('M' == 77) \ - && ('N' == 78) && ('O' == 79) && ('P' == 80) && ('Q' == 81) \ - && ('R' == 82) && ('S' == 83) && ('T' == 84) && ('U' == 85) \ - && ('V' == 86) && ('W' == 87) && ('X' == 88) && ('Y' == 89) \ - && ('Z' == 90) && ('[' == 91) && ('\\' == 92) && (']' == 93) \ - && ('^' == 94) && ('_' == 95) && ('a' == 97) && ('b' == 98) \ - && ('c' == 99) && ('d' == 100) && ('e' == 101) && ('f' == 102) \ - && ('g' == 103) && ('h' == 104) && ('i' == 105) && ('j' == 106) \ - && ('k' == 107) && ('l' == 108) && ('m' == 109) && ('n' == 110) \ - && ('o' == 111) && ('p' == 112) && ('q' == 113) && ('r' == 114) \ - && ('s' == 115) && ('t' == 116) && ('u' == 117) && ('v' == 118) \ - && ('w' == 119) && ('x' == 120) && ('y' == 121) && ('z' == 122) \ - && ('{' == 123) && ('|' == 124) && ('}' == 125) && ('~' == 126)) -/* The character set is not based on ISO-646. */ -#error "gperf generated tables don't work with this execution character set. Please report a bug to <bug-gnu-gperf@gnu.org>." -#endif - -/* maximum key range = 24, duplicates = 0 */ - -#ifndef GPERF_DOWNCASE -#define GPERF_DOWNCASE 1 -static unsigned char gperf_downcase[256] = - { - 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, - 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, - 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, - 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, - 60, 61, 62, 63, 64, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, - 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 118, 119, 120, 121, - 122, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, - 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 118, 119, - 120, 121, 122, 123, 124, 125, 126, 127, 128, 129, 130, 131, 132, 133, 134, - 135, 136, 137, 138, 139, 140, 141, 142, 143, 144, 145, 146, 147, 148, 149, - 150, 151, 152, 153, 154, 155, 156, 157, 158, 159, 160, 161, 162, 163, 164, - 165, 166, 167, 168, 169, 170, 171, 172, 173, 174, 175, 176, 177, 178, 179, - 180, 181, 182, 183, 184, 185, 186, 187, 188, 189, 190, 191, 192, 193, 194, - 195, 196, 197, 198, 199, 200, 201, 202, 203, 204, 205, 206, 207, 208, 209, - 210, 211, 212, 213, 214, 215, 216, 217, 218, 219, 220, 221, 222, 223, 224, - 225, 226, 227, 228, 229, 230, 231, 232, 233, 234, 235, 236, 237, 238, 239, - 240, 241, 242, 243, 244, 245, 246, 247, 248, 249, 250, 251, 252, 253, 254, - 255 - }; -#endif - -#ifndef GPERF_CASE_STRNCMP -#define GPERF_CASE_STRNCMP 1 -static int -gperf_case_strncmp (register const char *s1, register const char *s2, register unsigned int n) -{ - for (; n > 0;) - { - unsigned char c1 = gperf_downcase[(unsigned char)*s1++]; - unsigned char c2 = gperf_downcase[(unsigned char)*s2++]; - if (c1 != 0 && c1 == c2) - { - n--; - continue; - } - return (int)c1 - (int)c2; - } - return 0; -} -#endif - -#ifdef __GNUC__ -__inline -#else -#ifdef __cplusplus -inline -#endif -#endif -static unsigned int -hash (register const char *str, register unsigned int len) -{ - static const unsigned char asso_values[] = - { - 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, - 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, - 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, - 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, - 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, - 22, 21, 19, 18, 16, 0, 25, 25, 25, 25, - 25, 25, 25, 25, 25, 25, 1, 25, 0, 25, - 1, 0, 0, 13, 0, 25, 25, 11, 2, 1, - 0, 25, 25, 5, 0, 2, 25, 25, 25, 25, - 25, 25, 25, 25, 25, 25, 25, 25, 1, 25, - 0, 25, 1, 0, 0, 13, 0, 25, 25, 11, - 2, 1, 0, 25, 25, 5, 0, 2, 25, 25, - 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, - 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, - 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, - 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, - 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, - 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, - 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, - 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, - 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, - 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, - 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, - 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, - 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, - 25, 25, 25, 25, 25, 25, 25 - }; - register int hval = (int)len; - - switch (hval) - { - default: - hval += asso_values[(unsigned char)str[1]+1]; - /*FALLTHROUGH*/ - case 1: - hval += asso_values[(unsigned char)str[0]]; - break; - } - return hval; -} - -#ifdef __GNUC__ -__inline -#ifdef __GNUC_STDC_INLINE__ -__attribute__ ((__gnu_inline__)) -#endif -#endif -const char * -hoedown_find_block_tag (register const char *str, register unsigned int len) -{ - enum - { - TOTAL_KEYWORDS = 24, - MIN_WORD_LENGTH = 1, - MAX_WORD_LENGTH = 10, - MIN_HASH_VALUE = 1, - MAX_HASH_VALUE = 24 - }; - - if (len <= MAX_WORD_LENGTH && len >= MIN_WORD_LENGTH) - { - register int key = hash (str, len); - - if (key <= MAX_HASH_VALUE && key >= MIN_HASH_VALUE) - { - register const char *resword; - - switch (key - 1) - { - case 0: - resword = "p"; - goto compare; - case 1: - resword = "h6"; - goto compare; - case 2: - resword = "div"; - goto compare; - case 3: - resword = "del"; - goto compare; - case 4: - resword = "form"; - goto compare; - case 5: - resword = "table"; - goto compare; - case 6: - resword = "figure"; - goto compare; - case 7: - resword = "pre"; - goto compare; - case 8: - resword = "fieldset"; - goto compare; - case 9: - resword = "noscript"; - goto compare; - case 10: - resword = "script"; - goto compare; - case 11: - resword = "style"; - goto compare; - case 12: - resword = "dl"; - goto compare; - case 13: - resword = "ol"; - goto compare; - case 14: - resword = "ul"; - goto compare; - case 15: - resword = "math"; - goto compare; - case 16: - resword = "ins"; - goto compare; - case 17: - resword = "h5"; - goto compare; - case 18: - resword = "iframe"; - goto compare; - case 19: - resword = "h4"; - goto compare; - case 20: - resword = "h3"; - goto compare; - case 21: - resword = "blockquote"; - goto compare; - case 22: - resword = "h2"; - goto compare; - case 23: - resword = "h1"; - goto compare; - } - return 0; - compare: - if ((((unsigned char)*str ^ (unsigned char)*resword) & ~32) == 0 && !gperf_case_strncmp (str, resword, len) && resword[len] == '\0') - return resword; - } - } - return 0; -} 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 "'" 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[] = { "'", "'", "'", "'", 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. ' or ' or '. - '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 “ or ” */ - 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, "’"); - 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, "’"); - 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, "©"); - return 2; - } - - if (t1 == 'r' && t2 == ')') { - HOEDOWN_BUFPUTSL(ob, "®"); - return 2; - } - - if (size >= 4 && t1 == 't' && t2 == 'm' && text[3] == ')') { - HOEDOWN_BUFPUTSL(ob, "™"); - 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, "—"); - return 2; - } - - if (size >= 2 && text[1] == '-') { - HOEDOWN_BUFPUTSL(ob, "–"); - return 1; - } - - hoedown_buffer_putc(ob, text[0]); - return 0; -} - -/* Converts " 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, """, 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, "�", 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, "…"); - return 2; - } - - if (size >= 5 && text[1] == ' ' && text[2] == '.' && text[3] == ' ' && text[4] == '.') { - HOEDOWN_BUFPUTSL(ob, "…"); - 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, "½"); - 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, "¼"); - 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, "¾"); - 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, """); - - 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>", "’", 0 }, - { '\'', "'t>", "’", 0 }, - { '\'', "'re>", "’", 0 }, - { '\'', "'ll>", "’", 0 }, - { '\'', "'ve>", "’", 0 }, - { '\'', "'m>", "’", 0 }, - { '\'', "'d>", "’", 0 }, - { '-', "--", "—", 1 }, - { '-', "<->", "–", 0 }, - { '.', "...", "…", 2 }, - { '.', ". . .", "…", 4 }, - { '(', "(c)", "©", 2 }, - { '(', "(r)", "®", 2 }, - { '(', "(tm)", "™", 3 }, - { '3', "<3/4>", "¾", 2 }, - { '3', "<3/4ths>", "¾", 2 }, - { '1', "<1/2>", "½", 2 }, - { '1', "<1/4>", "¼", 2 }, - { '1', "<1/4th>", "¼", 2 }, - { '&', "�", 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); - } - } -} diff --git a/depends/hoedown/src/stack.c b/depends/hoedown/src/stack.c deleted file mode 100644 index 46ead232..00000000 --- a/depends/hoedown/src/stack.c +++ /dev/null @@ -1,79 +0,0 @@ -#include "hoedown/stack.h" - -#include "hoedown/buffer.h" - -#include <stdlib.h> -#include <string.h> -#include <assert.h> - -void -hoedown_stack_init(hoedown_stack *st, size_t initial_size) -{ - assert(st); - - st->item = NULL; - st->size = st->asize = 0; - - if (!initial_size) - initial_size = 8; - - hoedown_stack_grow(st, initial_size); -} - -void -hoedown_stack_uninit(hoedown_stack *st) -{ - assert(st); - - free(st->item); -} - -void -hoedown_stack_grow(hoedown_stack *st, size_t neosz) -{ - assert(st); - - if (st->asize >= neosz) - return; - - st->item = hoedown_realloc(st->item, neosz * sizeof(void *)); - memset(st->item + st->asize, 0x0, (neosz - st->asize) * sizeof(void *)); - - st->asize = neosz; - - if (st->size > neosz) - st->size = neosz; -} - -void -hoedown_stack_push(hoedown_stack *st, void *item) -{ - assert(st); - - if (st->size >= st->asize) - hoedown_stack_grow(st, st->size * 2); - - st->item[st->size++] = item; -} - -void * -hoedown_stack_pop(hoedown_stack *st) -{ - assert(st); - - if (!st->size) - return NULL; - - return st->item[--st->size]; -} - -void * -hoedown_stack_top(const hoedown_stack *st) -{ - assert(st); - - if (!st->size) - return NULL; - - return st->item[st->size - 1]; -} diff --git a/depends/hoedown/src/version.c b/depends/hoedown/src/version.c deleted file mode 100644 index 625ed196..00000000 --- a/depends/hoedown/src/version.c +++ /dev/null @@ -1,9 +0,0 @@ -#include "hoedown/version.h" - -void -hoedown_version(int *major, int *minor, int *revision) -{ - *major = HOEDOWN_VERSION_MAJOR; - *minor = HOEDOWN_VERSION_MINOR; - *revision = HOEDOWN_VERSION_REVISION; -} |