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-rw-r--r--src/inlines.c17
-rw-r--r--src/scanners.re41
2 files changed, 39 insertions, 19 deletions
diff --git a/src/inlines.c b/src/inlines.c
index 6bb89da..5e0f3e5 100644
--- a/src/inlines.c
+++ b/src/inlines.c
@@ -108,13 +108,26 @@ extern void add_reference(reference** refmap, reference* ref)
}
}
+static unsigned char *bufdup(const unsigned char *buf)
+{
+ unsigned char *new = NULL;
+
+ if (!buf) {
+ int len = strlen((char *)buf);
+ new = malloc(len + 1);
+ memcpy(new, buf, len + 1);
+ }
+
+ return new;
+}
+
inline static node_inl* make_link_from_reference(node_inl* label, reference *ref)
{
node_inl* e = (node_inl*) malloc(sizeof(node_inl));
e->tag = INL_LINK;
e->content.linkable.label = label;
- e->content.linkable.url = strdup(ref->url);
- e->content.linkable.title = ref->title ? strdup(ref->title) : NULL;
+ e->content.linkable.url = bufdup(ref->url);
+ e->content.linkable.title = bufdup(ref->title);
e->next = NULL;
return e;
}
diff --git a/src/scanners.re b/src/scanners.re
index 71103f6..28aba9d 100644
--- a/src/scanners.re
+++ b/src/scanners.re
@@ -1,9 +1,5 @@
#include <stdlib.h>
-#define SCAN_DATA \
- const unsigned char *marker = NULL; \
- const unsigned char *start = p; \
-
/*!re2c
re2c:define:YYCTYPE = "unsigned char";
re2c:define:YYCURSOR = p;
@@ -61,7 +57,8 @@
// Try to match URI autolink after first <, returning number of chars matched.
extern int _scan_autolink_uri(const unsigned char *p)
{
- SCAN_DATA;
+ const unsigned char *marker = NULL;
+ const unsigned char *start = p;
/*!re2c
scheme [:]([^\x00-\x20<>\\]|escaped_char)*[>] { return (p - start); }
.? { return 0; }
@@ -71,7 +68,8 @@ extern int _scan_autolink_uri(const unsigned char *p)
// Try to match email autolink after first <, returning num of chars matched.
extern int _scan_autolink_email(const unsigned char *p)
{
- SCAN_DATA;
+ const unsigned char *marker = NULL;
+ const unsigned char *start = p;
/*!re2c
[a-zA-Z0-9.!#$%&'*+/=?^_`{|}~-]+
[@]
@@ -85,7 +83,8 @@ extern int _scan_autolink_email(const unsigned char *p)
// Try to match an HTML tag after first <, returning num of chars matched.
extern int _scan_html_tag(const unsigned char *p)
{
- SCAN_DATA;
+ const unsigned char *marker = NULL;
+ const unsigned char *start = p;
/*!re2c
htmltag { return (p - start); }
.? { return 0; }
@@ -96,7 +95,8 @@ extern int _scan_html_tag(const unsigned char *p)
// returning num of chars matched.
extern int _scan_html_block_tag(const unsigned char *p)
{
- SCAN_DATA;
+ const unsigned char *marker = NULL;
+ const unsigned char *start = p;
/*!re2c
[<] [/] blocktagname (spacechar | [>]) { return (p - start); }
[<] blocktagname (spacechar | [/>]) { return (p - start); }
@@ -111,7 +111,8 @@ extern int _scan_html_block_tag(const unsigned char *p)
// Newlines aren't ever allowed.
extern int _scan_link_url(const unsigned char *p)
{
- SCAN_DATA;
+ const unsigned char *marker = NULL;
+ const unsigned char *start = p;
/*!re2c
[ \n]* [<] ([^<>\n\\\x00] | escaped_char | [\\])* [>] { return (p - start); }
[ \n]* (reg_char+ | escaped_char | in_parens_nosp)* { return (p - start); }
@@ -124,7 +125,8 @@ extern int _scan_link_url(const unsigned char *p)
// level of internal nesting (quotes within quotes).
extern int _scan_link_title(const unsigned char *p)
{
- SCAN_DATA;
+ const unsigned char *marker = NULL;
+ const unsigned char *start = p;
/*!re2c
["] (escaped_char|[^"\x00])* ["] { return (p - start); }
['] (escaped_char|[^'\x00])* ['] { return (p - start); }
@@ -136,7 +138,7 @@ extern int _scan_link_title(const unsigned char *p)
// Match space characters, including newlines.
extern int _scan_spacechars(const unsigned char *p)
{
- SCAN_DATA;
+ const unsigned char *start = p; \
/*!re2c
[ \t\n]* { return (p - start); }
. { return 0; }
@@ -146,7 +148,8 @@ extern int _scan_spacechars(const unsigned char *p)
// Match ATX header start.
extern int _scan_atx_header_start(const unsigned char *p)
{
- SCAN_DATA;
+ const unsigned char *marker = NULL;
+ const unsigned char *start = p;
/*!re2c
[#]{1,6} ([ ]+|[\n]) { return (p - start); }
.? { return 0; }
@@ -157,7 +160,7 @@ extern int _scan_atx_header_start(const unsigned char *p)
// 2 for level-2, 0 for no match.
extern int _scan_setext_header_line(const unsigned char *p)
{
- SCAN_DATA;
+ const unsigned char *marker = NULL;
/*!re2c
[=]+ [ ]* [\n] { return 1; }
[-]+ [ ]* [\n] { return 2; }
@@ -170,7 +173,8 @@ extern int _scan_setext_header_line(const unsigned char *p)
// spaces between the hyphens or asterisks."
extern int _scan_hrule(const unsigned char *p)
{
- SCAN_DATA;
+ const unsigned char *marker = NULL;
+ const unsigned char *start = p;
/*!re2c
([*][ ]*){3,} [ \t]* [\n] { return (p - start); }
([_][ ]*){3,} [ \t]* [\n] { return (p - start); }
@@ -182,7 +186,8 @@ extern int _scan_hrule(const unsigned char *p)
// Scan an opening code fence.
extern int _scan_open_code_fence(const unsigned char *p)
{
- SCAN_DATA;
+ const unsigned char *marker = NULL;
+ const unsigned char *start = p;
/*!re2c
[`]{3,} / [^`\n\x00]*[\n] { return (p - start); }
[~]{3,} / [^~\n\x00]*[\n] { return (p - start); }
@@ -193,7 +198,8 @@ extern int _scan_open_code_fence(const unsigned char *p)
// Scan a closing code fence with length at least len.
extern int _scan_close_code_fence(const unsigned char *p)
{
- SCAN_DATA;
+ const unsigned char *marker = NULL;
+ const unsigned char *start = p;
/*!re2c
([`]{3,} | [~]{3,}) / spacechar* [\n] { return (p - start); }
.? { return 0; }
@@ -204,7 +210,8 @@ extern int _scan_close_code_fence(const unsigned char *p)
// Returns number of chars matched.
extern int _scan_entity(const unsigned char *p)
{
- SCAN_DATA;
+ const unsigned char *marker = NULL;
+ const unsigned char *start = p;
/*!re2c
[&] ([#] ([Xx][A-Fa-f0-9]{1,8}|[0-9]{1,8}) |[A-Za-z][A-Za-z0-9]{1,31} ) [;]
{ return (p - start); }