Apple-2gs-SW/md2teach
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Change the output format to be more readable in order to understand the output of the parser, I think I will turn this output into optional debug output at some point but it is useful for now in development.

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This commit is contained in:
Jeremy Rand 2021-04-15 00:20:19 -04:00
parent b641d4a508
commit cfc83f702a
1 changed files with 199 additions and 11 deletions
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210
md2teach/main.c
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@ -50,7 +50,7 @@ static void debugLogHook(const char * message, void * userdata);
MD_PARSER parser = {
0, // abi_version
0, // flags
MD_FLAG_NOHTMLBLOCKS | MD_FLAG_NOHTMLSPANS, // flags
enterBlockHook,
leaveBlockHook,
enterSpanHook,
@ -60,42 +60,231 @@ MD_PARSER parser = {
NULL // syntax
};
void * lowestStackSeen;
char * commandName;
int indentLevel = 0;
// Implementation
static int enterBlockHook(MD_BLOCKTYPE type, void * detail, void * userdata)
{
printf("Enter Block: type = %d, detail = %p\n", (int)type, detail);
if ((detail != NULL) &&
(detail < lowestStackSeen))
lowestStackSeen = detail;
switch (type) {
case MD_BLOCK_DOC:
printf("%*sDOC {\n", indentLevel, "");
break;
case MD_BLOCK_QUOTE:
printf("%*sQUOTE {\n", indentLevel, "");
break;
case MD_BLOCK_UL: {
MD_BLOCK_UL_DETAIL * ulDetail = (MD_BLOCK_UL_DETAIL *)detail;
printf("%*sUL (is_tight=%d, mark=%c) {\n", indentLevel, "", ulDetail->is_tight, ulDetail->mark);
break;
}
case MD_BLOCK_OL: {
MD_BLOCK_OL_DETAIL * olDetail = (MD_BLOCK_OL_DETAIL *)detail;
printf("%*sOL (start=%u, is_tight=%d, mark_delimiter=%c) {\n", indentLevel, "", olDetail->start, olDetail->is_tight, olDetail->mark_delimiter);
break;
}
case MD_BLOCK_LI:
printf("%*sLI {\n", indentLevel, "");
break;
case MD_BLOCK_HR:
printf("%*sHR {\n", indentLevel, "");
break;
case MD_BLOCK_H: {
MD_BLOCK_H_DETAIL * hDetail = (MD_BLOCK_H_DETAIL *)detail;
printf("%*sH (level=%u) {\n", indentLevel, "", hDetail->level);
break;
}
case MD_BLOCK_CODE: {
MD_BLOCK_CODE_DETAIL * codeDetail = (MD_BLOCK_CODE_DETAIL *)detail;
printf("%*sCODE ", indentLevel, "");
if (codeDetail->fence_char != '\0') {
printf("(fence_char=%c) ", codeDetail->fence_char);
}
printf("{\n");
break;
}
case MD_BLOCK_P:
printf("%*sP {\n", indentLevel, "");
break;
default:
fprintf(stderr, "%s: Invalid block type (%d)\n", commandName, (int)type);
return 1;
break;
}
indentLevel+=2;
return 0;
}
static int leaveBlockHook(MD_BLOCKTYPE type, void * detail, void * userdata)
{
printf("Leave Block: type = %d, detail = %p\n", (int)type, detail);
if ((detail != NULL) &&
(detail < lowestStackSeen))
lowestStackSeen = detail;
switch (type) {
case MD_BLOCK_DOC:
break;
case MD_BLOCK_QUOTE:
break;
case MD_BLOCK_UL:
break;
case MD_BLOCK_OL:
break;
case MD_BLOCK_LI:
break;
case MD_BLOCK_HR:
break;
case MD_BLOCK_H:
break;
case MD_BLOCK_CODE:
break;
case MD_BLOCK_P:
break;
default:
fprintf(stderr, "%s: Invalid block type (%d)\n", commandName, (int)type);
return 1;
break;
}
indentLevel-=2;
printf("%*s}\n", indentLevel, "");
return 0;
}
static int enterSpanHook(MD_SPANTYPE type, void * detail, void * userdata)
{
printf("Enter Span: type = %d, detail = %p\n", (int)type, detail);
if ((detail != NULL) &&
(detail < lowestStackSeen))
lowestStackSeen = detail;
switch (type) {
case MD_SPAN_EM:
printf("%*sEM {\n", indentLevel, "");
break;
case MD_SPAN_STRONG:
printf("%*sSTRONG {\n", indentLevel, "");
break;
case MD_SPAN_A:
printf("%*sA {\n", indentLevel, "");
break;
case MD_SPAN_IMG:
printf("%*sIMG {\n", indentLevel, "");
break;
case MD_SPAN_CODE:
printf("%*sCODE {\n", indentLevel, "");
break;
default:
fprintf(stderr, "%s: Invalid span type (%d)\n", commandName, (int)type);
return 1;
break;
}
indentLevel+=2;
return 0;
}
static int leaveSpanHook(MD_SPANTYPE type, void * detail, void * userdata)
{
printf("Leave Span: type = %d, detail = %p\n", (int)type, detail);
if ((detail != NULL) &&
(detail < lowestStackSeen))
lowestStackSeen = detail;
switch (type) {
case MD_SPAN_EM:
break;
case MD_SPAN_STRONG:
break;
case MD_SPAN_A:
break;
case MD_SPAN_IMG:
break;
case MD_SPAN_CODE:
break;
default:
fprintf(stderr, "%s: Invalid span type (%d)\n", commandName, (int)type);
return 1;
break;
}
indentLevel-=2;
printf("%*s}\n", indentLevel, "");
return 0;
}
static int textHook(MD_TEXTTYPE type, const MD_CHAR * text, MD_SIZE size, void * userdata)
{
printf("Text: type = %d, size=%lu, text=", (int)type, size);
switch (type) {
case MD_TEXT_NORMAL:
printf("%*sText: \"", indentLevel, "");
break;
case MD_TEXT_NULLCHAR:
fprintf(stderr, "%s: Null character encountered on input\n", commandName);
return 1;
case MD_TEXT_BR:
case MD_TEXT_SOFTBR:
return 0;
case MD_TEXT_ENTITY:
printf("%*sEntity: \"", indentLevel, "");
break;
case MD_TEXT_CODE:
printf("%*sCode: \"", indentLevel, "");
break;
default:
fprintf(stderr, "%s: Invalid text type (%d)\n", commandName, (int)type);
return 1;
break;
}
fwrite(text, sizeof(MD_CHAR), size, stdout);
putchar('\n');
printf("\"\n");
return 0;
}
@ -108,9 +297,7 @@ static void debugLogHook(const char * message, void * userdata)
int main(int argc, char * argv[])
{
static int result;
static char * commandName;
int result;
static char * inputFileName;
static FILE * inputFile;
@ -119,7 +306,7 @@ int main(int argc, char * argv[])
static char * outputFileName;
printf("Stack start: %p\n", &result);
lowestStackSeen = &result;
if (argc != 3) {
fprintf(stderr, "USAGE: %s inputfile outputfile\n", argv[0]);
@ -172,6 +359,7 @@ int main(int argc, char * argv[])
result = md_parse(inputBuffer, inputFileLen, &parser, NULL);
printf("Parser result: %d\n", result);
printf("Most stack used: %lu\n", ((unsigned long)&result) - ((unsigned long)lowestStackSeen));
return 0;
}