/* has_metadata - parse document and report whether metadata is present */
gboolean has_metadata(char *text, int extensions) {
gboolean hasMeta;
element *result;
element *references;
element *notes;
element *labels;
GString *formatted_text;
formatted_text = preformat_text(text);
references = parse_references(formatted_text->str, extensions);
notes = parse_notes(formatted_text->str, extensions, references);
labels = parse_labels(formatted_text->str, extensions, references, notes);
result = parse_metadata_only(formatted_text->str, extensions);
hasMeta = FALSE;
if (result != NULL) {
if (result->children != NULL) {
hasMeta = TRUE;
free_element_list(result);
} else {
free_element(result);
}
}
free_element_list(references);
free_element_list(labels);
return hasMeta;
}
/* markdown_to_gstring - convert markdown text to the output format specified.
* Returns a GString, which must be freed after use using g_string_free(). */
GString * markdown_to_g_string(char *text, int extensions, int output_format) {
element *result;
element *references;
element *notes;
element *labels;
GString *formatted_text;
GString *out;
out = g_string_new("");
formatted_text = preformat_text(text);
if (output_format == OPML_FORMAT) {
result = parse_markdown_for_opml(formatted_text->str, extensions);
} else {
references = parse_references(formatted_text->str, extensions);
notes = parse_notes(formatted_text->str, extensions, references);
labels = parse_labels(formatted_text->str, extensions, references, notes);
result = parse_markdown_with_metadata(formatted_text->str, extensions, references, notes, labels);
result = process_raw_blocks(result, extensions, references, notes, labels);
}
g_string_free(formatted_text, TRUE);
print_element_list(out, result, output_format, extensions);
free_element_list(result);
if (output_format != OPML_FORMAT) {
free_element_list(references);
free_element_list(labels);
}
return out;
}
int interpret_program(tvm_program_t* p, char* filename, tvm_memory_t* pMemory)
{
int i;
FILE* pFile = NULL;
int source_length = 0;
char* source = NULL;
tvm_lexer_t* lexer = NULL;
/* Attempt to open the file. If the file cannot be opened, try once more. */
if(filename)
for(i = 0; i < 2; i++)
if(!pFile) pFile = tvm_fopen(filename, ".vm", "r");
if(!pFile)
{
printf("File was not found, or does not exist. Unable to interpret.\n");
return 1;
}
source_length = tvm_flength(pFile);
source = malloc(source_length);
tvm_fcopy(source, source_length, pFile);
lexer = lexer_create();
lex(lexer, source);
free(source);
fclose(pFile);
if(parse_labels(p, (const char***)lexer->tokens) != 0)
return 1;
for(i = 0; lexer->tokens[i]; i++)
{
p->instr = (int*)realloc(p->instr, sizeof(int) * (i + 2));
p->instr[i] = 0;
p->args = (int***)realloc(p->args, sizeof(int**) * (i + 2));
p->args[i] = (int**)calloc(MAX_ARGS, sizeof(int*));
parse_instruction(p, (const char**)lexer->tokens[i], pMemory);
}
lexer_destroy(lexer);
p->args[i] = NULL;
p->instr[i] = -0x1;
return 0;
}
/* extract_metadata_value - parse document and return value of specified
metadata key (e.g. "LateX Mode")/
Returns a null-terminated string, which must be freed after use. */
char * extract_metadata_value(char *text, int extensions, char *key) {
char *value;
element *result;
element *references;
element *notes;
element *labels;
GString *formatted_text;
formatted_text = preformat_text(text);
references = parse_references(formatted_text->str, extensions);
notes = parse_notes(formatted_text->str, extensions, references);
labels = parse_labels(formatted_text->str, extensions, references, notes);
result = parse_metadata_only(formatted_text->str, extensions);
value = metavalue_for_key(key, result);
free_element_list(result);
free_element_list(references);
free_element_list(labels);
return value;
}
/* markdown_to_gstring - convert markdown text to the output format specified.
* Returns a GString, which must be freed after use using g_string_free(). */
GString * markdown_to_g_string(char *text, int extensions, int output_format) {
element *result;
element *references;
element *notes;
element *labels;
GString *formatted_text;
GString *out;
out = g_string_new("");
formatted_text = preformat_text(text);
references = parse_references(formatted_text->str, extensions);
notes = parse_notes(formatted_text->str, extensions, references);
labels = parse_labels(formatted_text->str, extensions, references, notes);
if (output_format == OPML_FORMAT) {
result = parse_markdown_for_opml(formatted_text->str, extensions);
} else {
result = parse_markdown_with_metadata(formatted_text->str, extensions, references, notes, labels);
result = process_raw_blocks(result, extensions, references, notes, labels);
}
g_string_free(formatted_text, TRUE);
if (result == NULL) {
/* The parsing was aborted */
g_string_append(out,"MultiMarkdown was unable to parse this file.");
} else {
print_element_list(out, result, output_format, extensions);
}
free_element_list(result);
free_element_list(references);
free_element_list(labels);
return out;
}
/* ========================================================================= */
struct query *ParseURLString(struct query *q, char *urlstring)
{
char *qstring = NULL;
char *paramlist = NULL;
/* Let's start with sanity checks. */
if ( NULL == q )
{
if ( NULL == (q = (struct query *)malloc(sizeof(struct query))) )
{
error_msg("ERROR: Unable to malloc for query processing.");
return(NULL);
}
}
/* Addume no parse errors to start */
q->parse_failure = UP_ERROR_NONE;
/* Set other values to NONE - they will be overwritten */
q->tree = TREE_NONE;
q->format = FORMAT_NONE;
/* Handle the NULL URI case */
/* This means that we only want to insure that the q is allocated and
do not care what the actual "query" is. (Likely the user asked for
OPTIONS) */
if ( NULL == urlstring )
return(q);
/* Handle the empty URL case */
if ( (urlstring[0] == 0) ||
((urlstring[0] == '/') && (urlstring[1] == 0)) )
{
q->parse_failure = UP_ERROR_NONE;
q->tree = TREE_DEFAULT;
q->format = FORMAT_DEFAULT;
q->label_list[0] = 0;
return(q);
}
/* If not empty, then it must be 4 chars - at a minimum */
/* /root, /xml, /json, /cvs, /perf/json.... */
if ( strlen(urlstring) < 4 )
{
q->parse_failure |= UP_ERROR_SHORT;
return(q);
}
/* Is this an absoluteURI or not? */
if ( *urlstring != '/' )
{
/* We are not dealing with the "traditional" URL string. This is
likely a absoluteURI (see RFC2616) string. */
/* Bite off expected 'chunks' of the URI */
if (( urlstring[0] == 'h' ) &&
( urlstring[1] == 't' ) &&
( urlstring[2] == 't' ) &&
( urlstring[3] == 'p' ))
{
urlstring += 4;
}
/* [http]://[server_addr...] */
if ((urlstring[0] == ':' ) &&
(urlstring[1] == '/' ) &&
(urlstring[2] == '/' ))
{
urlstring += 3;
}
/* Walk up to the "traditional" URI string */
while (( *urlstring != 0 ) && ( *urlstring != '/' ))
urlstring++;
if ( *urlstring != '/' )
{
q->parse_failure |= UP_ERROR_MAL;
return(q);
}
}
while ( *urlstring != 0 )
{
if ( *urlstring == '/' )
{
if ( NULL == qstring )
qstring = urlstring;
}
if ( *urlstring == '?' )
{
*urlstring = 0;
urlstring++;
/* String should not end with a '?' */
if ( *urlstring == 0 )
{
q->parse_failure |= UP_ERROR_MAL;
return(q);
}
if ( NULL == paramlist )
paramlist = urlstring;
}
urlstring++;
}
if(parse_query(q, qstring))
return(q);
if(parse_labels(q, paramlist))
return(q);
return(q);
}
