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-rw-r--r--src/content-parser.c179
1 files changed, 73 insertions, 106 deletions
diff --git a/src/content-parser.c b/src/content-parser.c
index b8df868..ea41852 100644
--- a/src/content-parser.c
+++ b/src/content-parser.c
@@ -15,7 +15,6 @@
#include "utils/utils.h"
#include "content-parser.h"
-#include "error.h"
// this is a half ass implementation of a markdown-like syntax. bugs are
@@ -23,7 +22,6 @@
// TODO: inline elements: line breaks
-// TODO: error handling
typedef enum {
@@ -121,56 +119,45 @@ blogc_content_parse_inline(const char *src)
open_strong_ast = false;
else
open_strong_und = false;
+ break;
}
- else {
- if (state == 0)
- b_string_append(rv, "<strong>");
- if (c == '*')
- open_strong_ast = true;
- else
- open_strong_und = true;
- }
+ if (state == 0)
+ b_string_append(rv, "<strong>");
+ if (c == '*')
+ open_strong_ast = true;
+ else
+ open_strong_und = true;
+ break;
}
- else {
- if ((c == '*' && open_em_ast) || (c == '_' && open_em_und)) {
- if (state == 0)
- b_string_append(rv, "</em>");
- if (c == '*')
- open_em_ast = false;
- else
- open_em_und = false;
- }
- else {
- if (state == 0)
- b_string_append(rv, "<em>");
- if (c == '*')
- open_em_ast = true;
- else
- open_em_und = true;
- }
+ if ((c == '*' && open_em_ast) || (c == '_' && open_em_und)) {
+ if (state == 0)
+ b_string_append(rv, "</em>");
+ if (c == '*')
+ open_em_ast = false;
+ else
+ open_em_und = false;
+ break;
}
+ if (state == 0)
+ b_string_append(rv, "<em>");
+ if (c == '*')
+ open_em_ast = true;
+ else
+ open_em_und = true;
break;
case '`':
if (!is_last && src[current + 1] == c) {
current++;
- if (state == 0) {
- if (open_code_double)
- b_string_append(rv, "</code>");
- else
- b_string_append(rv, "<code>");
- }
+ if (state == 0)
+ b_string_append_printf(rv, "<%scode>",
+ open_code_double ? "/" : "");
open_code_double = !open_code_double;
+ break;
}
- else {
- if (state == 0) {
- if (open_code)
- b_string_append(rv, "</code>");
- else
- b_string_append(rv, "<code>");
- }
- open_code = !open_code;
- }
+ if (state == 0)
+ b_string_append_printf(rv, "<%scode>", open_code ? "/" : "");
+ open_code = !open_code;
break;
case '!':
@@ -240,12 +227,12 @@ blogc_content_parse_inline(const char *src)
if (state == 3) {
state = 0;
tmp = b_strndup(src + start, current - start);
- if (is_image) {
- b_string_append_printf(rv, "<img src=\"%s\" alt=\"%s\">", tmp, tmp2);
- }
- else {
- b_string_append_printf(rv, "<a href=\"%s\">%s</a>", tmp, tmp2);
- }
+ if (is_image)
+ b_string_append_printf(rv, "<img src=\"%s\" alt=\"%s\">",
+ tmp, tmp2);
+ else
+ b_string_append_printf(rv, "<a href=\"%s\">%s</a>",
+ tmp, tmp2);
free(tmp);
tmp = NULL;
free(tmp2);
@@ -300,13 +287,14 @@ blogc_content_parse_inline(const char *src)
char*
-blogc_content_parse(const char *src, size_t src_len, blogc_error_t **err)
+blogc_content_parse(const char *src)
{
- if (err == NULL || *err != NULL)
- return NULL;
+ // src is always nul-terminated.
+ size_t src_len = strlen(src);
size_t current = 0;
size_t start = 0;
+ size_t start2 = 0;
size_t end = 0;
unsigned int header_level = 0;
@@ -336,38 +324,37 @@ blogc_content_parse(const char *src, size_t src_len, blogc_error_t **err)
case CONTENT_START_LINE:
if (c == '\n' || c == '\r' || is_last)
break;
+ start = current;
if (c == '#') {
header_level = 1;
state = CONTENT_HEADER;
break;
}
if (c == '*' || c == '+' || c == '-') {
+ start2 = current;
state = CONTENT_UNORDERED_LIST_OR_HORIZONTAL_RULE;
- start = current;
d = c;
break;
}
if (c >= '0' && c <= '9') {
+ start2 = current;
state = CONTENT_ORDERED_LIST;
- start = current;
break;
}
if (c == ' ' || c == '\t') {
+ start2 = current;
state = CONTENT_CODE;
- start = current;
break;
}
if (c == '<') {
state = CONTENT_HTML;
- start = current;
break;
}
if (c == '>') {
state = CONTENT_BLOCKQUOTE;
- start = current;
+ start2 = current;
break;
}
- start = current;
state = CONTENT_PARAGRAPH;
break;
@@ -380,8 +367,7 @@ blogc_content_parse(const char *src, size_t src_len, blogc_error_t **err)
state = CONTENT_HEADER_TITLE_START;
break;
}
- *err = blogc_error_parser(BLOGC_ERROR_CONTENT_PARSER, src, src_len,
- current, "Malformed header, no space or tab after '#'");
+ state = CONTENT_PARAGRAPH;
break;
case CONTENT_HEADER_TITLE_START:
@@ -440,15 +426,13 @@ blogc_content_parse(const char *src, size_t src_len, blogc_error_t **err)
case CONTENT_BLOCKQUOTE_START:
if (c == '\n' || c == '\r' || is_last) {
end = is_last && c != '\n' && c != '\r' ? src_len : current;
- tmp = b_strndup(src + start, end - start);
+ tmp = b_strndup(src + start2, end - start2);
if (b_str_starts_with(tmp, prefix)) {
lines = b_slist_append(lines, b_strdup(tmp + strlen(prefix)));
state = CONTENT_BLOCKQUOTE_END;
}
else {
- *err = blogc_error_parser(BLOGC_ERROR_CONTENT_PARSER, src, src_len,
- current, "Malformed blockquote, must use same prefix "
- "as previous line(s): %s", prefix);
+ state = CONTENT_PARAGRAPH;
free(prefix);
prefix = NULL;
b_slist_free_full(lines, free);
@@ -469,11 +453,9 @@ blogc_content_parse(const char *src, size_t src_len, blogc_error_t **err)
else
b_string_append_printf(tmp_str, "%s\n", l->data);
}
- tmp = blogc_content_parse(tmp_str->str, tmp_str->len, err);
- if (*err == NULL) {
- b_string_append_printf(rv, "<blockquote>%s</blockquote>\n",
- tmp);
- }
+ tmp = blogc_content_parse(tmp_str->str);
+ b_string_append_printf(rv, "<blockquote>%s</blockquote>\n",
+ tmp);
free(tmp);
tmp = NULL;
b_string_free(tmp_str, true);
@@ -483,10 +465,10 @@ blogc_content_parse(const char *src, size_t src_len, blogc_error_t **err)
free(prefix);
prefix = NULL;
state = CONTENT_START_LINE;
- start = current;
+ start2 = current;
}
else {
- start = current;
+ start2 = current;
state = CONTENT_BLOCKQUOTE_START;
}
break;
@@ -501,19 +483,20 @@ blogc_content_parse(const char *src, size_t src_len, blogc_error_t **err)
case CONTENT_CODE_START:
if (c == '\n' || c == '\r' || is_last) {
end = is_last && c != '\n' && c != '\r' ? src_len : current;
- tmp = b_strndup(src + start, end - start);
+ tmp = b_strndup(src + start2, end - start2);
if (b_str_starts_with(tmp, prefix)) {
lines = b_slist_append(lines, b_strdup(tmp + strlen(prefix)));
state = CONTENT_CODE_END;
}
else {
- *err = blogc_error_parser(BLOGC_ERROR_CONTENT_PARSER, src, src_len,
- current, "Malformed code block, must use same prefix "
- "as previous line(s): '%s'", prefix);
+ state = CONTENT_PARAGRAPH;
free(prefix);
prefix = NULL;
b_slist_free_full(lines, free);
lines = NULL;
+ free(tmp);
+ tmp = NULL;
+ break;
}
free(tmp);
tmp = NULL;
@@ -536,10 +519,10 @@ blogc_content_parse(const char *src, size_t src_len, blogc_error_t **err)
free(prefix);
prefix = NULL;
state = CONTENT_START_LINE;
- start = current;
+ start2 = current;
}
else {
- start = current;
+ start2 = current;
state = CONTENT_CODE_START;
}
break;
@@ -572,7 +555,7 @@ blogc_content_parse(const char *src, size_t src_len, blogc_error_t **err)
case CONTENT_UNORDERED_LIST_START:
if (c == '\n' || c == '\r' || is_last) {
end = is_last && c != '\n' && c != '\r' ? src_len : current;
- tmp = b_strndup(src + start, end - start);
+ tmp = b_strndup(src + start2, end - start2);
if (b_str_starts_with(tmp, prefix)) {
tmp3 = b_strdup(tmp + strlen(prefix));
parsed = blogc_content_parse_inline(tmp3);
@@ -583,9 +566,10 @@ blogc_content_parse(const char *src, size_t src_len, blogc_error_t **err)
parsed = NULL;
}
else {
- *err = blogc_error_parser(BLOGC_ERROR_CONTENT_PARSER, src, src_len,
- current, "Malformed unordered list, must use same prefix "
- "as previous line(s): %s", prefix);
+ state = CONTENT_PARAGRAPH;
+ free(tmp);
+ tmp = NULL;
+ break;
}
free(tmp);
tmp = NULL;
@@ -605,10 +589,10 @@ blogc_content_parse(const char *src, size_t src_len, blogc_error_t **err)
free(prefix);
prefix = NULL;
state = CONTENT_START_LINE;
- start = current;
+ start2 = current;
}
else {
- start = current;
+ start2 = current;
state = CONTENT_UNORDERED_LIST_START;
}
break;
@@ -633,34 +617,25 @@ blogc_content_parse(const char *src, size_t src_len, blogc_error_t **err)
case CONTENT_ORDERED_LIST_START:
if (c == '\n' || c == '\r' || is_last) {
end = is_last && c != '\n' && c != '\r' ? src_len : current;
- tmp = b_strndup(src + start, end - start);
+ tmp = b_strndup(src + start2, end - start2);
if (strlen(tmp) >= prefix_len) {
tmp2 = b_strndup(tmp, prefix_len);
tmpv = b_str_split(tmp2, '.', 2);
free(tmp2);
tmp2 = NULL;
if (b_strv_length(tmpv) != 2) {
- *err = blogc_error_parser(BLOGC_ERROR_CONTENT_PARSER, src, src_len,
- current, "Malformed ordered list, prefix must be a "
- "number, followed by a '.', followed by the content. "
- "Content must be aligned with content from previous line(s)");
+ state = CONTENT_PARAGRAPH;
goto err_li;
}
for (unsigned int i = 0; tmpv[0][i] != '\0'; i++) {
if (!(tmpv[0][i] >= '0' && tmpv[0][i] <= '9')) {
- *err = blogc_error_parser(BLOGC_ERROR_CONTENT_PARSER, src, src_len,
- current, "Malformed ordered list, prefix must be a "
- "number, followed by a '.', followed by the content. "
- "Content must be aligned with content from previous line(s)");
+ state = CONTENT_PARAGRAPH;
goto err_li;
}
}
for (unsigned int i = 0; tmpv[1][i] != '\0'; i++) {
if (!(tmpv[1][i] == ' ' || tmpv[1][i] == '\t')) {
- *err = blogc_error_parser(BLOGC_ERROR_CONTENT_PARSER, src, src_len,
- current, "Malformed ordered list, prefix must be a "
- "number, followed by a '.', followed by the content. "
- "Content must be aligned with content from previous line(s)");
+ state = CONTENT_PARAGRAPH;
goto err_li;
}
}
@@ -679,7 +654,7 @@ err_li:
free(tmp);
tmp = NULL;
}
- if (!is_last)
+ if (state == CONTENT_PARAGRAPH || !is_last)
break;
case CONTENT_ORDERED_LIST_END:
@@ -693,10 +668,10 @@ err_li:
free(prefix);
prefix = NULL;
state = CONTENT_START_LINE;
- start = current;
+ start2 = current;
}
else {
- start = current;
+ start2 = current;
state = CONTENT_ORDERED_LIST_START;
}
break;
@@ -727,16 +702,8 @@ err_li:
}
- if (*err != NULL)
- break;
-
current++;
}
- if (*err != NULL) {
- b_string_free(rv, true);
- return NULL;
- }
-
return b_string_free(rv, false);
}
generated by cgit v1.2.3-18-g5258 (git 2.32.0) at 2024-11-01 16:35:18 +0000