add README.md and logging

1 files changed, 12 insertions, 2 deletions

diff --git a/src/bindings.c b/src/bindings.c
index eb9710c..b02911b 100644
--- a/src/bindings.c
+++ b/src/bindings.c
@@ -5,6 +5,7 @@
 #include "honeysuckle.h"
 #include "md4c-html.h"
 #include "bindings.h"
+#include "logging.h"
 
 struct concat_buffer {
    char *buf;
@@ -15,6 +16,7 @@ struct concat_buffer {
 
 static void md_callback(const MD_CHAR *html, MD_SIZE size, void *data)
 {
+   argent_log(TRACE, "begin md_callback()");
    struct concat_buffer *d = data;
 
    if (!d->ok)
@@ -24,6 +26,7 @@ static void md_callback(const MD_CHAR *html, MD_SIZE size, void *data)
       char *new_buf = realloc(d->buf, d->size * 2);
       if (new_buf == NULL) {
 	 // failed to allocate memory, abort!
+	 argent_log(WARN, "failed to properly allocate memory for html buffer!");
 	 d->ok = false;
 	 return;
       }
@@ -34,13 +37,17 @@ static void md_callback(const MD_CHAR *html, MD_SIZE size, void *data)
       
    memcpy((d->buf) + d->index, html, size);
    d->index += size;
+
+   argent_log(TRACE, "finish md_callback()");
 }
 
 int markdown(lua_State *L)
 {
+   argent_log(DEBUG, "begin markdown parsing");
    char *markdown_buffer;
    hs_parse_args(L, hs_str(markdown_buffer));
    size_t len = strlen(markdown_buffer);
+   argent_log(TRACE, "markdown input (%ld bytes): %s", len, markdown_buffer);
 
    unsigned int md_flags = MD_FLAG_TABLES | MD_FLAG_STRIKETHROUGH | MD_FLAG_UNDERLINE;
 
@@ -50,6 +57,7 @@ int markdown(lua_State *L)
    data.index = 0;
    data.ok = true;
 
+   argent_log(TRACE, "call md_html()");
    // fill out the buffer
    int error = md_html(markdown_buffer, len, md_callback, &data, md_flags, 0);
    if (error)
@@ -60,9 +68,11 @@ int markdown(lua_State *L)
 
    data.buf[data.index] = 0;
 
+   argent_log(TRACE, "finished HTML buffer (%d bytes, %d chars): %s",
+	      data.size, data.index, data.buf);
    lua_pushstring(L, data.buf);
-   
    free(data.buf);
-
+   
+   argent_log(DEBUG, "finish markdown parsing");
    return 1;
 }