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feat: hmpl: section test passeeed

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This commit is contained in:
yukkop
2025-04-05 21:31:35 +00:00
parent 42f8e839d1
commit 14c246de3e
2 changed files with 45 additions and 36 deletions
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77
package/c/hmpl/hmpl.c
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@@ -1,6 +1,7 @@
#include "hmpl.h"
Json *eval_object(Arena *arena, const Json * const context, const char * const query) {
raise_debug("eval_object(%p, %s, %s)", arena, json_to_string(arena, context), query);
if (!context || !query) return NULL;
const Json *res = context;
@@ -29,7 +30,7 @@ char *eval_string(Arena *arena, const Json * const context, const char * const q
/* Modified: text is passed by reference so we can update it and free old allocations */
// {{[prefix]key}}
void hmpl_render_interpolation_tags(Arena *arena, char **text_ptr, const Json * const context, const char * const prefix) {
raise_debug("hmpl_render_interpolation_tags");
raise_debug("hmpl_render_interpolation_tags(%p, %s, %s)", arena, *text_ptr, prefix);
char start_pattern[256];
snprintf(start_pattern, sizeof(start_pattern), "{{%s", prefix);
int start_pattern_length = strlen(start_pattern);
@@ -53,6 +54,7 @@ void hmpl_render_interpolation_tags(Arena *arena, char **text_ptr, const Json *
char *replacement = eval_string(arena, context, key);
if (!replacement) {
raise_debug("no replacement for key: `%s`", key);
offset = (end - current_text) + 2;
continue;
}
@@ -61,6 +63,9 @@ void hmpl_render_interpolation_tags(Arena *arena, char **text_ptr, const Json *
end - start + 2,
replacement);
raise_zalupa("old_text: `%s`", current_text);
raise_zalupa("new_text: `%s`", new_text);
*text_ptr = new_text;
offset = start_index;
}
@@ -74,14 +79,14 @@ void hmpl_render_section_tags(Arena *arena, char **text_ptr, Json *context, cons
char start_pattern[32];
snprintf(start_pattern, sizeof(start_pattern), "{{%s", prefix_start);
Slice start_slice = slice_create(char, start_pattern, strlen(start_pattern), 0, strlen(start_pattern));
raise_trace("start_slice: %s", start_slice.data);
raise_zalupa("start_slice: `%s`", start_slice.data);
// Create a mutable copy of separator_pattern
char separator_copy[32];
strncpy(separator_copy, separator_pattern, sizeof(separator_copy) - 1);
separator_copy[sizeof(separator_copy) - 1] = '\0';
Slice separator_slice = slice_create(char, separator_copy, strlen(separator_copy), 0, strlen(separator_copy));
raise_trace("separator_slice: %s", separator_slice.data);
raise_zalupa("separator_slice: `%s`", separator_slice.data);
if (separator_slice.len == 0) {
raise_exception("Unexpected usage: separator pattern cannot be empty");
}
@@ -102,19 +107,21 @@ void hmpl_render_section_tags(Arena *arena, char **text_ptr, Json *context, cons
// Find separator
char *opening_tag_separator = strstr((char*)remaining_slice.data, (char*)separator_slice.data);
raise_zalupa("opening_tag_separator: `%s`", opening_tag_separator);
if (!opening_tag_separator) {
raise_exception("Malformed template: missing separator for section tag or not specified name for element");
exit(1);
}
// Extract element name (now before separator)
size_t separator_index = opening_tag_separator - (char*)remaining_slice.data;
size_t separator_index = opening_tag_separator - (char*)remaining_slice.data - strlen(start_slice.data);
size_t element_name_start = start_slice.len;
size_t element_name_length = separator_index;
raise_zalupa("element_name_length: %zu", element_name_length);
char *element_name = arena_alloc(arena, element_name_length + 1);
substr_clone((char*)remaining_slice.data, element_name, element_name_start, element_name_length);
element_name[element_name_length] = '\0';
raise_zalupa("element_name: `%s`", element_name);
// Find closing braces
Slice after_separator = slice_subslice(remaining_slice, separator_index + separator_slice.len,
@@ -126,33 +133,35 @@ void hmpl_render_section_tags(Arena *arena, char **text_ptr, Json *context, cons
}
// Extract key (now after separator)
size_t key_start = 0;
size_t key_length = opening_tag_end - (char*)after_separator.data;
size_t key_start = strlen(start_slice.data);
size_t key_length = opening_tag_end - (char*)after_separator.data - strlen(start_slice.data);
char *key = arena_alloc(arena, key_length + 1);
substr_clone((char*)after_separator.data, key, key_start, key_length);
raise_zalupa("key: `%s`", key);
key[key_length] = '\0';
// Create pattern for closing tag
char *close_tag_pattern = arena_alloc(arena, start_slice.len + key_length + 3); // +3 for "{{" and "}}"
snprintf(close_tag_pattern, start_slice.len + key_length + 3,
"{{%s%s}}", prefix_end, key);
raise_trace("close_tag_pattern: %s", close_tag_pattern);
// +2 for "{{" and "}}"
char *close_tag_pattern = arena_alloc(arena, start_slice.len + key_length + strlen(prefix_end) + 2);
snprintf(
close_tag_pattern,
start_slice.len + key_length + strlen(prefix_end) + 2,
"{{%s%s}}",
prefix_end,
key
);
raise_zalupa("close_tag_pattern: `%s`", close_tag_pattern);
// Find closing tag
size_t after_opening_end = (opening_tag_end - (char*)after_separator.data) + 2;
Slice after_opening_slice = slice_subslice(after_separator, after_opening_end,
after_separator.len - after_opening_end);
Slice after_opening_slice = slice_subslice(
after_separator,
after_opening_end,
after_separator.len - after_opening_end
);
raise_zalupa("after_opening_slice: `%s`", after_opening_slice.data);
// Find the exact closing tag by checking for complete tag pattern
char *close_tag = NULL;
char *search_start = (char*)after_opening_slice.data;
while ((search_start = strstr(search_start, "{{")) != NULL) {
if (strncmp(search_start, close_tag_pattern, strlen(close_tag_pattern)) == 0) {
close_tag = search_start;
break;
}
search_start += 2; // Move past the "{{" we found
}
// Find the exact closing tag by directly searching for the closing tag pattern
char *close_tag = strstr(after_opening_slice.data, close_tag_pattern);
raise_zalupa("close_tag: `%s` (%p)", close_tag, close_tag);
if (!close_tag) {
raise_exception("Malformed template: missing loop end for key %s", key);
@@ -161,6 +170,7 @@ void hmpl_render_section_tags(Arena *arena, char **text_ptr, Json *context, cons
// Get array from context
Json *arr = eval_object(arena, context, key);
raise_zalupa("arr: %s", json_to_string(arena, arr));
if (arr && arr->type == JSON_ARRAY) {
// Count array elements
@@ -172,11 +182,11 @@ void hmpl_render_section_tags(Arena *arena, char **text_ptr, Json *context, cons
size_t replacement_offset = 0;
// Extract template block
size_t block_start = after_opening_end;
size_t block_length = (close_tag - (char*)after_opening_slice.data);
char *block_buff = arena_alloc(arena, block_length + 1);
substr_clone((char*)after_opening_slice.data, block_buff, block_start, block_length);
substr_clone((char*)after_opening_slice.data, block_buff, 0, block_length);
block_buff[block_length] = '\0';
raise_zalupa("block_buff: `%s`", block_buff);
// Process each array element
for (Json *elem = arr->child; elem; elem = elem->next) {
@@ -184,8 +194,9 @@ void hmpl_render_section_tags(Arena *arena, char **text_ptr, Json *context, cons
char *prefix = arena_alloc(arena, element_name_length + 2);
snprintf(prefix, element_name_length + 2, "%s.", element_name);
hmpl_render_interpolation_tags(arena, &block, context, prefix);
raise_zalupa("prefix: `%s`", prefix);
hmpl_render_interpolation_tags(arena, &block, elem, prefix);
raise_trace("block after: %s", block);
size_t block_len = strlen(block);
@@ -194,12 +205,12 @@ void hmpl_render_section_tags(Arena *arena, char **text_ptr, Json *context, cons
}
replacement[replacement_offset] = '\0';
raise_trace("replacement: %s", replacement);
raise_zalupa("replacement: %s", replacement);
// Calculate replacement positions
size_t replace_start = start_index;
size_t replace_length = (close_tag - (char*)after_opening_slice.data) +
start_slice.len + key_length + 2;
size_t replace_length = (close_tag - opening_tag_start) + strlen(close_tag_pattern);
raise_zalupa("replace_length: %zu = %zu - %zu + %zu", replace_length, (size_t)close_tag, start_index, strlen(close_tag_pattern));
// Perform replacement
char *new_text = arena_repstr(arena, (char*)text_slice.data, replace_start, replace_length, replacement);