path: root/src/print.c

#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include "stmd.h"
#include "debug.h"

static void print_str(const unsigned char *s, int len)
{
    int i;

    if (len < 0)
        len = strlen((char *)s);

    putchar('"');
    for (i = 0; i < len; ++i) {
        unsigned char c = s[i];

        switch (c) {
        case '\n':
            printf("\\n");
            break;
        case '"':
            printf("\\\"");
            break;
        case '\\':
            printf("\\\\");
            break;
        default:
            putchar((int)c);
        }
    }
    putchar('"');
}

// Prettyprint an inline list, for debugging.
static void print_inlines(node_inl* ils, int indent)
{
    while(ils != NULL) {
        for (int i=0; i < indent; i++) {
            putchar(' ');
        }
        switch(ils->tag) {
        case INL_STRING:
            printf("str ");
            print_str(ils->content.literal.data, ils->content.literal.len);
            putchar('\n');
            break;
        case INL_LINEBREAK:
            printf("linebreak\n");
            break;
        case INL_SOFTBREAK:
            printf("softbreak\n");
            break;
        case INL_CODE:
            printf("code ");
            print_str(ils->content.literal.data, ils->content.literal.len);
            putchar('\n');
            break;
        case INL_RAW_HTML:
            printf("html ");
            print_str(ils->content.literal.data, ils->content.literal.len);
            putchar('\n');
            break;
        case INL_LINK:
        case INL_IMAGE:
            printf("%s url=", ils->tag == INL_LINK ? "link" : "image");

            if (ils->content.linkable.url)
                print_str(ils->content.linkable.url, -1);

            if (ils->content.linkable.title) {
                printf(" title=");
                print_str(ils->content.linkable.title, -1);
            }
            putchar('\n');
            print_inlines(ils->content.linkable.label, indent + 2);
            break;
        case INL_STRONG:
            printf("strong\n");
            print_inlines(ils->content.linkable.label, indent + 2);
            break;
        case INL_EMPH:
            printf("emph\n");
            print_inlines(ils->content.linkable.label, indent + 2);
            break;
        }
        ils = ils->next;
    }
}

// Functions to pretty-print inline and node_block lists, for debugging.
// Prettyprint an inline list, for debugging.
static void print_blocks(node_block* b, int indent)
{
    struct ListData *data;

    while(b != NULL) {
        for (int i=0; i < indent; i++) {
            putchar(' ');
        }

        switch(b->tag) {
        case BLOCK_DOCUMENT:
            printf("document\n");
            print_blocks(b->children, indent + 2);
            break;
        case BLOCK_BQUOTE:
            printf("block_quote\n");
            print_blocks(b->children, indent + 2);
            break;
        case BLOCK_LIST_ITEM:
            printf("list_item\n");
            print_blocks(b->children, indent + 2);
            break;
        case BLOCK_LIST:
            data = &(b->as.list);
            if (data->list_type == ordered) {
                printf("list (type=ordered tight=%s start=%d delim=%s)\n",
                       (data->tight ? "true" : "false"),
                       data->start,
                       (data->delimiter == parens ? "parens" : "period"));
            } else {
                printf("list (type=bullet tight=%s bullet_char=%c)\n",
                       (data->tight ? "true" : "false"),
                       data->bullet_char);
            }
            print_blocks(b->children, indent + 2);
            break;
        case BLOCK_ATX_HEADER:
            printf("atx_header (level=%d)\n", b->as.header.level);
            print_inlines(b->inline_content, indent + 2);
            break;
        case BLOCK_SETEXT_HEADER:
            printf("setext_header (level=%d)\n", b->as.header.level);
            print_inlines(b->inline_content, indent + 2);
            break;
        case BLOCK_PARAGRAPH:
            printf("paragraph\n");
            print_inlines(b->inline_content, indent + 2);
            break;
        case BLOCK_HRULE:
            printf("hrule\n");
            break;
        case BLOCK_INDENTED_CODE:
            printf("indented_code ");
            print_str(b->string_content.ptr, -1);
            putchar('\n');
            break;
        case BLOCK_FENCED_CODE:
            printf("fenced_code length=%d info=",
                   b->as.code.fence_length);
            print_str(b->as.code.info.ptr, -1);
            putchar(' ');
            print_str(b->string_content.ptr, -1);
            putchar('\n');
            break;
        case BLOCK_HTML:
            printf("html_block ");
            print_str(b->string_content.ptr, -1);
            putchar('\n');
            break;
        case BLOCK_REFERENCE_DEF:
            printf("reference_def\n");
            break;
        default:
            printf("# NOT IMPLEMENTED (%d)\n", b->tag);
            break;
        }
        b = b->next;
    }
}

void stmd_debug_print(node_block *root)
{
    print_blocks(root, 0);
}