migrate codebase to use squareball. again :)feature/squareball

16 files changed, 0 insertions, 1850 deletions

diff --git a/src/common/compat.c b/src/common/compat.c
deleted file mode 100644
index f7394c8..0000000
--- a/src/common/compat.c
+++ /dev/null
@@ -1,39 +0,0 @@
-/*
- * blogc: A blog compiler.
- * Copyright (C) 2014-2019 Rafael G. Martins <rafael@rafaelmartins.eng.br>
- *
- * This program can be distributed under the terms of the BSD License.
- * See the file LICENSE.
- */
-
-#ifdef HAVE_CONFIG_H
-#include <config.h>
-#endif /* HAVE_CONFIG_H */
-
-#ifdef HAVE_SYS_WAIT_H
-#include <sys/wait.h>
-#endif /* HAVE_SYS_WAIT_H */
-
-#include <signal.h>
-#include "compat.h"
-
-
-int
-bc_compat_status_code(int waitstatus)
-{
-    int rv = waitstatus;
-#if defined(WIFEXITED) && defined(WEXITSTATUS) && defined(WIFSIGNALED) && defined(WTERMSIG)
-    if (WIFEXITED(waitstatus)) {
-        rv = WEXITSTATUS(waitstatus);
-    }
-    else if (WIFSIGNALED(waitstatus)) {
-        rv = WTERMSIG(waitstatus);
-        rv += 128;
-    }
-#elif defined(WIN32) || defined(_WIN32)
-    if (waitstatus == 3) {
-        rv = SIGTERM + 128;  // can't get signal on windows.
-    }
-#endif
-    return rv;
-}
diff --git a/src/common/compat.h b/src/common/compat.h
deleted file mode 100644
index 1e743db..0000000
--- a/src/common/compat.h
+++ /dev/null
@@ -1,14 +0,0 @@
-/*
- * blogc: A blog compiler.
- * Copyright (C) 2014-2019 Rafael G. Martins <rafael@rafaelmartins.eng.br>
- *
- * This program can be distributed under the terms of the BSD License.
- * See the file LICENSE.
- */
-
-#ifndef _COMPAT_H
-#define _COMPAT_H
-
-int bc_compat_status_code(int waitstatus);
-
-#endif /* _COMPAT_H */
diff --git a/src/common/config-parser.c b/src/common/config-parser.c
deleted file mode 100644
index bc4831b..0000000
--- a/src/common/config-parser.c
+++ /dev/null
@@ -1,442 +0,0 @@
-/*
- * blogc: A blog compiler.
- * Copyright (C) 2014-2019 Rafael G. Martins <rafael@rafaelmartins.eng.br>
- *
- * This program can be distributed under the terms of the BSD License.
- * See the file LICENSE.
- */
-
-#include <stdbool.h>
-#include <stdlib.h>
-#include <string.h>
-#include "error.h"
-#include "utils.h"
-#include "config-parser.h"
-
-
-typedef enum {
-    CONFIG_START = 1,
-    CONFIG_SECTION_START,
-    CONFIG_SECTION,
-    CONFIG_SECTION_KEY,
-    CONFIG_SECTION_VALUE_START,
-    CONFIG_SECTION_VALUE_QUOTE,
-    CONFIG_SECTION_VALUE_POST_QUOTED,
-    CONFIG_SECTION_VALUE,
-    CONFIG_SECTION_LIST_START,
-    CONFIG_SECTION_LIST_QUOTE,
-    CONFIG_SECTION_LIST_POST_QUOTED,
-    CONFIG_SECTION_LIST,
-} bc_configparser_state_t;
-
-typedef enum {
-    CONFIG_SECTION_TYPE_MAP = 1,
-    CONFIG_SECTION_TYPE_LIST,
-} bc_configparser_section_type_t;
-
-typedef struct {
-    bc_configparser_section_type_t type;
-    void *data;
-} bc_configparser_section_t;
-
-
-static void
-free_section(bc_configparser_section_t *section)
-{
-    if (section == NULL)
-        return;
-
-    switch (section->type) {
-        case CONFIG_SECTION_TYPE_MAP:
-            bc_trie_free(section->data);
-            break;
-        case CONFIG_SECTION_TYPE_LIST:
-            bc_slist_free_full(section->data, free);
-            break;
-    }
-    free(section);
-}
-
-
-bc_config_t*
-bc_config_parse(const char *src, size_t src_len, const char *list_sections[],
-    bc_error_t **err)
-{
-    if (err == NULL || *err != NULL)
-        return NULL;
-
-    size_t current = 0;
-    size_t start = 0;
-
-    bc_configparser_section_t *section = NULL;
-
-    char *section_name = NULL;
-    char *key = NULL;
-    bc_string_t *value = NULL;
-    bool escaped = false;
-
-    bc_config_t *rv = bc_malloc(sizeof(bc_config_t));
-    rv->root = bc_trie_new((bc_free_func_t) free_section);
-
-    bc_configparser_state_t state = CONFIG_START;
-
-    while (current < src_len) {
-        char c = src[current];
-        bool is_last = current == src_len - 1;
-
-        if (escaped) {
-            bc_string_append_c(value, c);
-            escaped = false;
-            current++;
-            continue;
-        }
-
-        if (value != NULL && c == '\\') {
-            escaped = true;
-            current++;
-            continue;
-        }
-
-        switch (state) {
-
-            case CONFIG_START:
-                if (c == '#' || c == ';') {
-                    while (current < src_len) {
-                        if (src[current] == '\r' || src[current] == '\n')
-                            break;
-                        current++;
-                    }
-                    break;
-                }
-                if (c == ' ' || c == '\t' || c == '\r' || c == '\n')
-                    break;
-                if (c == '[') {
-                    state = CONFIG_SECTION_START;
-                    break;
-                }
-                if (section != NULL) {
-                    start = current;
-                    switch (section->type) {
-                        case CONFIG_SECTION_TYPE_MAP:
-                            state = CONFIG_SECTION_KEY;
-                            break;
-                        case CONFIG_SECTION_TYPE_LIST:
-                            state = CONFIG_SECTION_LIST_START;
-                            if (value == NULL)
-                                value = bc_string_new();
-                            break;
-                    }
-                    continue;
-                }
-                *err = bc_error_parser(BC_ERROR_CONFIG_PARSER, src, src_len,
-                    current, "File must start with section.");
-                break;
-
-            case CONFIG_SECTION_START:
-                start = current;
-                state = CONFIG_SECTION;
-                break;
-
-            case CONFIG_SECTION:
-                if (c == ']') {
-                    section_name = bc_strndup(src + start, current - start);
-                    section = bc_malloc(sizeof(bc_configparser_section_t));
-                    section->type = CONFIG_SECTION_TYPE_MAP;
-                    if (list_sections != NULL) {
-                        for (size_t i = 0; list_sections[i] != NULL; i++) {
-                            if (0 == strcmp(section_name, list_sections[i])) {
-                                section->type = CONFIG_SECTION_TYPE_LIST;
-                                break;
-                            }
-                        }
-                    }
-                    switch (section->type) {
-                        case CONFIG_SECTION_TYPE_MAP:
-                            section->data = bc_trie_new(free);
-                            break;
-                        case CONFIG_SECTION_TYPE_LIST:
-                            section->data = NULL;
-                            break;
-                    }
-                    bc_trie_insert(rv->root, section_name, section);
-                    free(section_name);
-                    section_name = NULL;
-                    state = CONFIG_START;
-                    break;
-                }
-                if (c != '\r' && c != '\n')
-                    break;
-                *err = bc_error_parser(BC_ERROR_CONFIG_PARSER, src, src_len,
-                    current, "Section names can't have new lines.");
-                break;
-
-            case CONFIG_SECTION_KEY:
-                if (c == '=') {
-                    key = bc_strndup(src + start, current - start);
-                    state = CONFIG_SECTION_VALUE_START;
-                    if (is_last) {
-                        bc_trie_insert(section->data, bc_str_strip(key),
-                            bc_strdup(""));
-                        free(key);
-                        key = NULL;
-                        break;
-                    }
-                    if (value == NULL)
-                        value = bc_string_new();
-                    break;
-                }
-                if (c != '\r' && c != '\n' && !is_last)
-                    break;
-                // key without value, should we support it?
-                size_t end = is_last && c != '\n' && c != '\r' ? src_len :
-                    current;
-                key = bc_strndup(src + start, end - start);
-                *err = bc_error_parser(BC_ERROR_CONFIG_PARSER, src, src_len,
-                    current, "Key without value: %s.", key);
-                free(key);
-                key = NULL;
-                break;
-
-            case CONFIG_SECTION_VALUE_START:
-                if (c == ' ' || c == '\t' || c == '\f' || c == '\v')
-                    break;
-                if (c == '"') {
-                    state = CONFIG_SECTION_VALUE_QUOTE;
-                    break;
-                }
-                if (c == '\r' || c == '\n' || is_last) {
-                    state = CONFIG_SECTION_VALUE;
-                    continue;
-                }
-                bc_string_append_c(value, c);
-                state = CONFIG_SECTION_VALUE;
-                break;
-
-            case CONFIG_SECTION_VALUE_QUOTE:
-                if (c == '"') {
-                    bc_trie_insert(section->data, bc_str_strip(key),
-                        bc_string_free(value, false));
-                    free(key);
-                    key = NULL;
-                    value = NULL;
-                    state = CONFIG_SECTION_VALUE_POST_QUOTED;
-                    break;
-                }
-                bc_string_append_c(value, c);
-                break;
-
-            case CONFIG_SECTION_VALUE_POST_QUOTED:
-                if (c == ' ' || c == '\t' || c == '\f' || c == '\v')
-                    break;
-                if (c == '\r' || c == '\n' || is_last) {
-                    state = CONFIG_START;
-                    break;
-                }
-                *err = bc_error_parser(BC_ERROR_CONFIG_PARSER, src, src_len,
-                    current, "Invalid value for key, should not have anything "
-                    "after quotes.");
-                break;
-
-            case CONFIG_SECTION_VALUE:
-                if (c == '\r' || c == '\n' || is_last) {
-                    if (is_last && c != '\r' && c != '\n')
-                        bc_string_append_c(value, c);
-                    bc_trie_insert(section->data, bc_str_strip(key),
-                        bc_strdup(bc_str_rstrip(value->str)));
-                    free(key);
-                    key = NULL;
-                    bc_string_free(value, true);
-                    value = NULL;
-                    state = CONFIG_START;
-                    break;
-                }
-                bc_string_append_c(value, c);
-                break;
-
-            case CONFIG_SECTION_LIST_START:
-                if (c == ' ' || c == '\t' || c == '\f' || c == '\v')
-                    break;
-                if (c == '"') {
-                    state = CONFIG_SECTION_LIST_QUOTE;
-                    break;
-                }
-                bc_string_append_c(value, c);
-                state = CONFIG_SECTION_LIST;
-                break;
-
-            case CONFIG_SECTION_LIST_QUOTE:
-                if (c == '"') {
-                    section->data = bc_slist_append(section->data,
-                        bc_string_free(value, false));
-                    value = NULL;
-                    state = CONFIG_SECTION_LIST_POST_QUOTED;
-                    break;
-
-                }
-                bc_string_append_c(value, c);
-                break;
-
-            case CONFIG_SECTION_LIST_POST_QUOTED:
-                if (c == ' ' || c == '\t' || c == '\f' || c == '\v')
-                    break;
-                if (c == '\r' || c == '\n' || is_last) {
-                    state = CONFIG_START;
-                    break;
-                }
-                *err = bc_error_parser(BC_ERROR_CONFIG_PARSER, src, src_len,
-                    current, "Invalid value for list item, should not have "
-                    "anything after quotes.");
-                break;
-
-            case CONFIG_SECTION_LIST:
-                if (c == '\r' || c == '\n' || is_last) {
-                    if (is_last && c != '\r' && c != '\n')
-                        bc_string_append_c(value, c);
-                    section->data = bc_slist_append(section->data,
-                        bc_strdup(bc_str_strip(value->str)));
-                    bc_string_free(value, true);
-                    value = NULL;
-                    state = CONFIG_START;
-                    break;
-
-                }
-                bc_string_append_c(value, c);
-                break;
-
-        }
-
-        if (*err != NULL) {
-            bc_config_free(rv);
-            rv = NULL;
-            break;
-        }
-
-        current++;
-    }
-
-    free(section_name);
-    free(key);
-    bc_string_free(value, true);
-
-    return rv;
-}
-
-
-static void
-list_keys(const char *key, const char *value, bc_slist_t **l)
-{
-    *l = bc_slist_append(*l, bc_strdup(key));
-}
-
-
-char**
-bc_config_list_sections(bc_config_t *config)
-{
-    if (config == NULL)
-        return NULL;
-
-    bc_slist_t *l = NULL;
-    bc_trie_foreach(config->root, (bc_trie_foreach_func_t) list_keys, &l);
-
-    char **rv = bc_malloc(sizeof(char*) * (bc_slist_length(l) + 1));
-
-    size_t i = 0;
-    for (bc_slist_t *tmp = l; tmp != NULL; tmp = tmp->next, i++)
-        rv[i] = tmp->data;
-    rv[i] = NULL;
-
-    bc_slist_free(l);
-
-    return rv;
-}
-
-
-char**
-bc_config_list_keys(bc_config_t *config, const char *section)
-{
-    if (config == NULL)
-        return NULL;
-
-    bc_configparser_section_t *s = bc_trie_lookup(config->root, section);
-    if (s == NULL)
-        return NULL;
-
-    if (s->type != CONFIG_SECTION_TYPE_MAP)
-        return NULL;
-
-    bc_slist_t *l = NULL;
-    bc_trie_foreach(s->data, (bc_trie_foreach_func_t) list_keys, &l);
-
-    char **rv = bc_malloc(sizeof(char*) * (bc_slist_length(l) + 1));
-
-    size_t i = 0;
-    for (bc_slist_t *tmp = l; tmp != NULL; tmp = tmp->next, i++)
-        rv[i] = tmp->data;
-    rv[i] = NULL;
-
-    bc_slist_free(l);
-
-    return rv;
-}
-
-
-const char*
-bc_config_get(bc_config_t *config, const char *section, const char *key)
-{
-    if (config == NULL)
-        return NULL;
-
-    bc_configparser_section_t *s = bc_trie_lookup(config->root, section);
-    if (s == NULL)
-        return NULL;
-
-    if (s->type != CONFIG_SECTION_TYPE_MAP)
-        return NULL;
-
-    return bc_trie_lookup(s->data, key);
-}
-
-
-const char*
-bc_config_get_with_default(bc_config_t *config, const char *section, const char *key,
-    const char *default_)
-{
-    const char *rv = bc_config_get(config, section, key);
-    if (rv == NULL)
-        return default_;
-    return rv;
-}
-
-
-char**
-bc_config_get_list(bc_config_t *config, const char *section)
-{
-    if (config == NULL)
-        return NULL;
-
-    bc_configparser_section_t *s = bc_trie_lookup(config->root, section);
-    if (s == NULL)
-        return NULL;
-
-    if (s->type != CONFIG_SECTION_TYPE_LIST)
-        return NULL;
-
-    char **rv = bc_malloc(sizeof(char*) * (bc_slist_length(s->data) + 1));
-
-    size_t i = 0;
-    for (bc_slist_t *tmp = s->data; tmp != NULL; tmp = tmp->next, i++)
-        rv[i] = bc_strdup(tmp->data);
-    rv[i] = NULL;
-
-    return rv;
-}
-
-
-void
-bc_config_free(bc_config_t *config)
-{
-    if (config == NULL)
-        return;
-    bc_trie_free(config->root);
-    free(config);
-}
diff --git a/src/common/config-parser.h b/src/common/config-parser.h
deleted file mode 100644
index 0b75ff8..0000000
--- a/src/common/config-parser.h
+++ /dev/null
@@ -1,31 +0,0 @@
-/*
- * blogc: A blog compiler.
- * Copyright (C) 2014-2019 Rafael G. Martins <rafael@rafaelmartins.eng.br>
- *
- * This program can be distributed under the terms of the BSD License.
- * See the file LICENSE.
- */
-
-#ifndef _CONFIG_PARSER_H
-#define _CONFIG_PARSER_H
-
-#include <stddef.h>
-#include "utils.h"
-#include "error.h"
-
-typedef struct {
-    bc_trie_t *root;
-} bc_config_t;
-
-bc_config_t* bc_config_parse(const char *src, size_t src_len,
-    const char *list_sections[], bc_error_t **err);
-char** bc_config_list_sections(bc_config_t *config);
-char** bc_config_list_keys(bc_config_t *config, const char *section);
-const char* bc_config_get(bc_config_t *config, const char *section,
-    const char *key);
-const char* bc_config_get_with_default(bc_config_t *config, const char *section,
-    const char *key, const char *default_);
-char** bc_config_get_list(bc_config_t *config, const char *section);
-void bc_config_free(bc_config_t *config);
-
-#endif /* _CONFIG_PARSER_H */
diff --git a/src/common/error.c b/src/common/error.c
deleted file mode 100644
index 03695e7..0000000
--- a/src/common/error.c
+++ /dev/null
@@ -1,158 +0,0 @@
-/*
- * blogc: A blog compiler.
- * Copyright (C) 2014-2019 Rafael G. Martins <rafael@rafaelmartins.eng.br>
- *
- * This program can be distributed under the terms of the BSD License.
- * See the file LICENSE.
- */
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <stdarg.h>
-#include "error.h"
-#include "utils.h"
-
-
-bc_error_t*
-bc_error_new(bc_error_type_t type, const char *msg)
-{
-    bc_error_t *err = bc_malloc(sizeof(bc_error_t));
-    err->type = type;
-    err->msg = bc_strdup(msg);
-    return err;
-}
-
-
-bc_error_t*
-bc_error_new_printf(bc_error_type_t type, const char *format, ...)
-{
-    va_list ap;
-    va_start(ap, format);
-    char *tmp = bc_strdup_vprintf(format, ap);
-    va_end(ap);
-    bc_error_t *rv = bc_error_new(type, tmp);
-    free(tmp);
-    return rv;
-}
-
-
-bc_error_t*
-bc_error_parser(bc_error_type_t type, const char *src, size_t src_len,
-    size_t current, const char *format, ...)
-{
-    va_list ap;
-    va_start(ap, format);
-    char *msg = bc_strdup_vprintf(format, ap);
-    va_end(ap);
-
-    size_t lineno = 1;
-    size_t linestart = 0;
-    size_t lineend = 0;
-    size_t pos = 1;
-
-    for (size_t i = 0; i < src_len; i++) {
-        char c = src[i];
-        if (i < current) {
-            if ((i + 1) < src_len) {
-                if ((c == '\n' && src[i + 1] == '\r') ||
-                    (c == '\r' && src[i + 1] == '\n'))
-                {
-                    lineno++;
-                    i++;
-                    pos = 1;
-                    if ((i + 1) < src_len)
-                        linestart = i + 1;
-                    continue;
-                }
-            }
-            if (c == '\n' || c == '\r') {
-                lineno++;
-                pos = 1;
-                if ((i + 1) < src_len)
-                    linestart = i + 1;
-                continue;
-            }
-            pos++;
-        }
-        else if (c == '\n' || c == '\r') {
-            lineend = i;
-            break;
-        }
-    }
-
-    if (lineend <= linestart && src_len >= linestart)
-        lineend = src_len;
-
-    char *line = bc_strndup(src + linestart, lineend - linestart);
-
-    bc_error_t *rv = NULL;
-
-    if (line[0] == '\0')  // "near" message isn't useful if line is empty
-        rv = bc_error_new(type, msg);
-    else
-        rv = bc_error_new_printf(type,
-            "%s\nError occurred near line %d, position %d: %s", msg, lineno,
-            pos, line);
-
-    free(msg);
-    free(line);
-
-    return rv;
-}
-
-
-// error handling is centralized here for the sake of simplicity :/
-void
-bc_error_print(bc_error_t *err, const char *prefix)
-{
-    if (err == NULL)
-        return;
-
-    if (prefix != NULL)
-        fprintf(stderr, "%s: ", prefix);
-
-    switch(err->type) {
-        case BC_ERROR_CONFIG_PARSER:
-            fprintf(stderr, "error: config-parser: %s\n", err->msg);
-            break;
-        case BC_ERROR_FILE:
-            fprintf(stderr, "error: file: %s\n", err->msg);
-            break;
-        case BLOGC_ERROR_SOURCE_PARSER:
-            fprintf(stderr, "error: source: %s\n", err->msg);
-            break;
-        case BLOGC_ERROR_TEMPLATE_PARSER:
-            fprintf(stderr, "error: template: %s\n", err->msg);
-            break;
-        case BLOGC_ERROR_LOADER:
-            fprintf(stderr, "error: loader: %s\n", err->msg);
-            break;
-        case BLOGC_WARNING_DATETIME_PARSER:
-            fprintf(stderr, "warning: datetime: %s\n", err->msg);
-            break;
-        case BLOGC_MAKE_ERROR_SETTINGS:
-            fprintf(stderr, "error: settings: %s\n", err->msg);
-            break;
-        case BLOGC_MAKE_ERROR_EXEC:
-            fprintf(stderr, "error: exec: %s\n", err->msg);
-            break;
-        case BLOGC_MAKE_ERROR_ATOM:
-            fprintf(stderr, "error: atom: %s\n", err->msg);
-            break;
-        case BLOGC_MAKE_ERROR_UTILS:
-            fprintf(stderr, "error: utils: %s\n", err->msg);
-            break;
-        default:
-            fprintf(stderr, "error: %s\n", err->msg);
-    }
-}
-
-
-void
-bc_error_free(bc_error_t *err)
-{
-    if (err == NULL)
-        return;
-    free(err->msg);
-    free(err);
-}
diff --git a/src/common/error.h b/src/common/error.h
deleted file mode 100644
index b85f006..0000000
--- a/src/common/error.h
+++ /dev/null
@@ -1,47 +0,0 @@
-/*
- * blogc: A blog compiler.
- * Copyright (C) 2014-2019 Rafael G. Martins <rafael@rafaelmartins.eng.br>
- *
- * This program can be distributed under the terms of the BSD License.
- * See the file LICENSE.
- */
-
-#ifndef _ERROR_H
-#define _ERROR_H
-
-#include <stddef.h>
-
-// error handling is centralized here for the sake of simplicity :/
-typedef enum {
-
-    // errors for src/common
-    BC_ERROR_CONFIG_PARSER = 1,
-    BC_ERROR_FILE,
-
-    // errors for src/blogc
-    BLOGC_ERROR_SOURCE_PARSER = 100,
-    BLOGC_ERROR_TEMPLATE_PARSER,
-    BLOGC_ERROR_LOADER,
-    BLOGC_WARNING_DATETIME_PARSER,
-
-    // errors for src/blogc-make
-    BLOGC_MAKE_ERROR_SETTINGS = 300,
-    BLOGC_MAKE_ERROR_EXEC,
-    BLOGC_MAKE_ERROR_ATOM,
-    BLOGC_MAKE_ERROR_UTILS,
-
-} bc_error_type_t;
-
-typedef struct {
-    char *msg;
-    bc_error_type_t type;
-} bc_error_t;
-
-bc_error_t* bc_error_new(bc_error_type_t type, const char *msg);
-bc_error_t* bc_error_new_printf(bc_error_type_t type, const char *format, ...);
-bc_error_t* bc_error_parser(bc_error_type_t type, const char *src,
-    size_t src_len, size_t current, const char *format, ...);
-void bc_error_print(bc_error_t *err, const char *prefix);
-void bc_error_free(bc_error_t *err);
-
-#endif /* _ERROR_H */
diff --git a/src/common/file.c b/src/common/file.c
deleted file mode 100644
index 1e55f64..0000000
--- a/src/common/file.c
+++ /dev/null
@@ -1,66 +0,0 @@
-/*
- * blogc: A blog compiler.
- * Copyright (C) 2014-2019 Rafael G. Martins <rafael@rafaelmartins.eng.br>
- *
- * This program can be distributed under the terms of the BSD License.
- * See the file LICENSE.
- */
-
-#include <errno.h>
-#include <stdbool.h>
-#include <stdint.h>
-#include <stdio.h>
-#include <string.h>
-#include "file.h"
-#include "error.h"
-#include "utf8.h"
-#include "utils.h"
-
-
-char*
-bc_file_get_contents(const char *path, bool utf8, size_t *len, bc_error_t **err)
-{
-    if (path == NULL || len == NULL || err == NULL || *err != NULL)
-        return NULL;
-
-    *len = 0;
-    FILE *fp = fopen(path, "r");
-
-    if (fp == NULL) {
-        int tmp_errno = errno;
-        *err = bc_error_new_printf(BC_ERROR_FILE,
-            "Failed to open file (%s): %s", path, strerror(tmp_errno));
-        return NULL;
-    }
-
-    bc_string_t *str = bc_string_new();
-    char buffer[BC_FILE_CHUNK_SIZE];
-    char *tmp;
-
-    while (!feof(fp)) {
-        size_t read_len = fread(buffer, sizeof(char), BC_FILE_CHUNK_SIZE, fp);
-
-        tmp = buffer;
-
-        if (utf8 && str->len == 0 && read_len > 0) {
-            // skipping BOM before validation, for performance. should be safe
-            // enough
-            size_t skip = bc_utf8_skip_bom((uint8_t*) buffer, read_len);
-            read_len -= skip;
-            tmp += skip;
-        }
-
-        *len += read_len;
-        bc_string_append_len(str, tmp, read_len);
-    }
-    fclose(fp);
-
-    if (utf8 && !bc_utf8_validate_str(str)) {
-        *err = bc_error_new_printf(BC_ERROR_FILE,
-            "File content is not valid UTF-8: %s", path);
-        bc_string_free(str, true);
-        return NULL;
-    }
-
-    return bc_string_free(str, false);
-}
diff --git a/src/common/file.h b/src/common/file.h
deleted file mode 100644
index d002bf7..0000000
--- a/src/common/file.h
+++ /dev/null
@@ -1,20 +0,0 @@
-/*
- * blogc: A blog compiler.
- * Copyright (C) 2014-2019 Rafael G. Martins <rafael@rafaelmartins.eng.br>
- *
- * This program can be distributed under the terms of the BSD License.
- * See the file LICENSE.
- */
-
-#ifndef _FILE_H
-#define _FILE_H
-
-#include <stddef.h>
-#include <stdbool.h>
-#include "error.h"
-
-#define BC_FILE_CHUNK_SIZE 1024
-
-char* bc_file_get_contents(const char *path, bool utf8, size_t *len, bc_error_t **err);
-
-#endif /* _FILE_H */
diff --git a/src/common/sort.c b/src/common/sort.c
deleted file mode 100644
index 3e24706..0000000
--- a/src/common/sort.c
+++ /dev/null
@@ -1,44 +0,0 @@
-/*
- * blogc: A blog compiler.
- * Copyright (C) 2014-2019 Rafael G. Martins <rafael@rafaelmartins.eng.br>
- *
- * This program can be distributed under the terms of the BSD License.
- * See the file LICENSE.
- */
-
-#include <stdbool.h>
-#include "utils.h"
-#include "sort.h"
-
-
-bc_slist_t*
-bc_slist_sort(bc_slist_t *l, bc_sort_func_t cmp)
-{
-    if (l == NULL) {
-        return NULL;
-    }
-
-    bool swapped = false;
-    bc_slist_t *lptr = NULL;
-    bc_slist_t *rptr = NULL;
-
-    do {
-        swapped = false;
-        lptr = l;
-
-        while (lptr->next != rptr) {
-            if (0 < cmp(lptr->data, lptr->next->data)) {
-                void *tmp = lptr->data;
-                lptr->data = lptr->next->data;
-                lptr->next->data = tmp;
-                swapped = true;
-            }
-
-            lptr = lptr->next;
-        }
-
-        rptr = lptr;
-    } while(swapped);
-
-    return l;
-}
diff --git a/src/common/sort.h b/src/common/sort.h
deleted file mode 100644
index 9f4dda2..0000000
--- a/src/common/sort.h
+++ /dev/null
@@ -1,18 +0,0 @@
-/*
- * blogc: A blog compiler.
- * Copyright (C) 2014-2019 Rafael G. Martins <rafael@rafaelmartins.eng.br>
- *
- * This program can be distributed under the terms of the BSD License.
- * See the file LICENSE.
- */
-
-#ifndef _SORT_H
-#define _SORT_H
-
-#include "utils.h"
-
-typedef int (*bc_sort_func_t) (const void *a, const void *b);
-
-bc_slist_t* bc_slist_sort(bc_slist_t *l, bc_sort_func_t cmp);
-
-#endif /* _SORT_H */
diff --git a/src/common/stdin.c b/src/common/stdin.c
deleted file mode 100644
index a460247..0000000
--- a/src/common/stdin.c
+++ /dev/null
@@ -1,24 +0,0 @@
-/*
- * blogc: A blog compiler.
- * Copyright (C) 2014-2019 Rafael G. Martins <rafael@rafaelmartins.eng.br>
- *
- * This program can be distributed under the terms of the BSD License.
- * See the file LICENSE.
- */
-
-#include <stdbool.h>
-#include <stdio.h>
-#include "utils.h"
-#include "stdin.h"
-
-
-// splitted in single file to make it easier to test
-char*
-bc_stdin_read(void)
-{
-    int c;
-    bc_string_t *rv = bc_string_new();
-    while (EOF != (c = fgetc(stdin)))
-        bc_string_append_c(rv, c);
-    return bc_string_free(rv, false);
-}
diff --git a/src/common/stdin.h b/src/common/stdin.h
deleted file mode 100644
index e6bd7a0..0000000
--- a/src/common/stdin.h
+++ /dev/null
@@ -1,14 +0,0 @@
-/*
- * blogc: A blog compiler.
- * Copyright (C) 2014-2019 Rafael G. Martins <rafael@rafaelmartins.eng.br>
- *
- * This program can be distributed under the terms of the BSD License.
- * See the file LICENSE.
- */
-
-#ifndef _STDIN_H
-#define _STDIN_H
-
-char* bc_stdin_read(void);
-
-#endif /* _STDIN_H */
diff --git a/src/common/utf8.c b/src/common/utf8.c
deleted file mode 100644
index f029e5b..0000000
--- a/src/common/utf8.c
+++ /dev/null
@@ -1,102 +0,0 @@
-/*
- * blogc: A blog compiler.
- * Copyright (c) 2008-2010 Bjoern Hoehrmann <bjoern@hoehrmann.de>
- * Copyright (c) 2014-2019 Rafael G. Martins <rafael@rafaelmartins.eng.br>
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to
- * deal in the Software without restriction, including without limitation the
- * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
- * sell copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
- * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
- * IN THE SOFTWARE.
- */
-
-// Based on Bjoern Hoehrmann's algorithm.
-// See http://bjoern.hoehrmann.de/utf-8/decoder/dfa/ for details.
-
-#include <stdbool.h>
-#include <stddef.h>
-#include <stdint.h>
-#include "utils.h"
-
-#define UTF8_ACCEPT 0
-#define UTF8_REJECT 12
-
-
-static const uint8_t utf8d[] = {
-    // The first part of the table maps bytes to character classes that
-    // to reduce the size of the transition table and create bitmasks.
-     0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,  0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
-     0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,  0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
-     0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,  0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
-     0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,  0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
-     1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,  9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,
-     7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,  7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,
-     8,8,2,2,2,2,2,2,2,2,2,2,2,2,2,2,  2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,
-    10,3,3,3,3,3,3,3,3,3,3,3,3,4,3,3, 11,6,6,6,5,8,8,8,8,8,8,8,8,8,8,8,
-
-    // The second part is a transition table that maps a combination
-    // of a state of the automaton and a character class to a state.
-     0,12,24,36,60,96,84,12,12,12,48,72, 12,12,12,12,12,12,12,12,12,12,12,12,
-    12, 0,12,12,12,12,12, 0,12, 0,12,12, 12,24,12,12,12,12,12,24,12,24,12,12,
-    12,12,12,12,12,12,12,24,12,12,12,12, 12,24,12,12,12,12,12,12,12,24,12,12,
-    12,12,12,12,12,12,12,36,12,36,12,12, 12,36,12,12,12,12,12,36,12,36,12,12,
-    12,36,12,12,12,12,12,12,12,12,12,12,
-};
-
-
-static uint32_t inline
-decode(uint32_t* state, uint32_t* codep, uint32_t byte) {
-    uint32_t type = utf8d[byte];
-
-    *codep = (*state != UTF8_ACCEPT) ?
-        (byte & 0x3fu) | (*codep << 6) :
-        (0xff >> type) & (byte);
-
-    *state = utf8d[256 + *state + type];
-    return *state;
-}
-
-
-bool
-bc_utf8_validate(const uint8_t *str, size_t len)
-{
-    uint32_t codepoint;
-    uint32_t state = 0;
-
-    for (size_t i = 0; i < len; i++)
-        decode(&state, &codepoint, str[i]);
-
-    return state == UTF8_ACCEPT;
-}
-
-
-bool
-bc_utf8_validate_str(bc_string_t *str)
-{
-    return bc_utf8_validate((uint8_t*) str->str, str->len);
-}
-
-
-size_t
-bc_utf8_skip_bom(const uint8_t *str, size_t len)
-{
-    if (len < 3)
-        return 0;
-
-    if (str[0] == 0xef && str[1] == 0xbb && str[2] == 0xbf)
-        return 3;
-
-    return 0;
-}
diff --git a/src/common/utf8.h b/src/common/utf8.h
deleted file mode 100644
index bf0f1ae..0000000
--- a/src/common/utf8.h
+++ /dev/null
@@ -1,21 +0,0 @@
-/*
- * blogc: A blog compiler.
- * Copyright (C) 2014-2019 Rafael G. Martins <rafael@rafaelmartins.eng.br>
- *
- * This program can be distributed under the terms of the BSD License.
- * See the file LICENSE.
- */
-
-#ifndef _UTF_8_H
-#define _UTF_8_H
-
-#include <stdbool.h>
-#include <stddef.h>
-#include <stdint.h>
-#include "utils.h"
-
-bool bc_utf8_validate(const uint8_t *str, size_t len);
-bool bc_utf8_validate_str(bc_string_t *str);
-size_t bc_utf8_skip_bom(const uint8_t *str, size_t len);
-
-#endif /* _UTF_8_H */
diff --git a/src/common/utils.c b/src/common/utils.c
deleted file mode 100644
index 692d1ce..0000000
--- a/src/common/utils.c
+++ /dev/null
@@ -1,701 +0,0 @@
-/*
- * blogc: A blog compiler.
- * Copyright (C) 2014-2019 Rafael G. Martins <rafael@rafaelmartins.eng.br>
- *
- * This program can be distributed under the terms of the BSD License.
- * See the file LICENSE.
- */
-
-#define BC_STRING_CHUNK_SIZE 128
-
-#include <string.h>
-#include <strings.h>
-#include <stdarg.h>
-#include <stdbool.h>
-#include <stdlib.h>
-#include <stdio.h>
-
-#include "utils.h"
-
-
-void*
-bc_malloc(size_t size)
-{
-    // simple things simple!
-    void *rv = malloc(size);
-    if (rv == NULL) {
-        fprintf(stderr, "fatal: Failed to allocate memory!\n");
-        abort();
-    }
-    return rv;
-}
-
-
-void*
-bc_realloc(void *ptr, size_t size)
-{
-    // simple things even simpler :P
-    void *rv = realloc(ptr, size);
-    if (rv == NULL && size != 0) {
-        fprintf(stderr, "fatal: Failed to reallocate memory!\n");
-        free(ptr);
-        abort();
-    }
-    return rv;
-}
-
-
-bc_slist_t*
-bc_slist_append(bc_slist_t *l, void *data)
-{
-    bc_slist_t *node = bc_malloc(sizeof(bc_slist_t));
-    node->data = data;
-    node->next = NULL;
-    if (l == NULL) {
-        l = node;
-    }
-    else {
-        bc_slist_t *tmp;
-        for (tmp = l; tmp->next != NULL; tmp = tmp->next);
-        tmp->next = node;
-    }
-    return l;
-}
-
-
-bc_slist_t*
-bc_slist_prepend(bc_slist_t *l, void *data)
-{
-    bc_slist_t *node = bc_malloc(sizeof(bc_slist_t));
-    node->data = data;
-    node->next = l;
-    l = node;
-    return l;
-}
-
-
-void
-bc_slist_free_full(bc_slist_t *l, bc_free_func_t free_func)
-{
-    while (l != NULL) {
-        bc_slist_t *tmp = l->next;
-        if ((free_func != NULL) && (l->data != NULL))
-            free_func(l->data);
-        free(l);
-        l = tmp;
-    }
-}
-
-
-void
-bc_slist_free(bc_slist_t *l)
-{
-    bc_slist_free_full(l, NULL);
-}
-
-
-size_t
-bc_slist_length(bc_slist_t *l)
-{
-    if (l == NULL)
-        return 0;
-    size_t i;
-    bc_slist_t *tmp;
-    for (tmp = l, i = 0; tmp != NULL; tmp = tmp->next, i++);
-    return i;
-}
-
-
-char*
-bc_strdup(const char *s)
-{
-    if (s == NULL)
-        return NULL;
-    size_t l = strlen(s);
-    char *tmp = malloc(l + 1);
-    if (tmp == NULL)
-        return NULL;
-    memcpy(tmp, s, l + 1);
-    return tmp;
-}
-
-
-char*
-bc_strndup(const char *s, size_t n)
-{
-    if (s == NULL)
-        return NULL;
-    size_t l = strnlen(s, n);
-    char *tmp = malloc(l + 1);
-    if (tmp == NULL)
-        return NULL;
-    memcpy(tmp, s, l);
-    tmp[l] = '\0';
-    return tmp;
-}
-
-
-char*
-bc_strdup_vprintf(const char *format, va_list ap)
-{
-    va_list ap2;
-    va_copy(ap2, ap);
-    int l = vsnprintf(NULL, 0, format, ap2);
-    va_end(ap2);
-    if (l < 0)
-        return NULL;
-    char *tmp = malloc(l + 1);
-    if (!tmp)
-        return NULL;
-    int l2 = vsnprintf(tmp, l + 1, format, ap);
-    if (l2 < 0) {
-        free(tmp);
-        return NULL;
-    }
-    return tmp;
-}
-
-
-char*
-bc_strdup_printf(const char *format, ...)
-{
-    va_list ap;
-    va_start(ap, format);
-    char *tmp = bc_strdup_vprintf(format, ap);
-    va_end(ap);
-    return tmp;
-}
-
-
-// locale-independent implementation of isspace
-bool
-bc_isspace(int c)
-{
-    return c == ' ' || c == '\f' || c == '\n' || c == '\r' || c == '\t' || c == '\v';
-}
-
-
-bool
-bc_str_starts_with(const char *str, const char *prefix)
-{
-    int str_l = strlen(str);
-    int str_lp = strlen(prefix);
-    if (str_lp > str_l)
-        return false;
-    return strncmp(str, prefix, str_lp) == 0;
-}
-
-
-bool
-bc_str_ends_with(const char *str, const char *suffix)
-{
-    int str_l = strlen(str);
-    int str_ls = strlen(suffix);
-    if (str_ls > str_l)
-        return false;
-    return strcmp(str + str_l - str_ls, suffix) == 0;
-}
-
-
-char*
-bc_str_lstrip(char *str)
-{
-    if (str == NULL)
-        return NULL;
-    int i;
-    size_t str_len = strlen(str);
-    for (i = 0; i < str_len; i++) {
-        if ((str[i] != ' ') && (str[i] != '\t') && (str[i] != '\n') &&
-            (str[i] != '\r') && (str[i] != '\t') && (str[i] != '\f') &&
-            (str[i] != '\v'))
-        {
-            str += i;
-            break;
-        }
-        if (i == str_len - 1) {
-            str += str_len;
-            break;
-        }
-    }
-    return str;
-}
-
-
-char*
-bc_str_rstrip(char *str)
-{
-    if (str == NULL)
-        return NULL;
-    int i;
-    size_t str_len = strlen(str);
-    for (i = str_len - 1; i >= 0; i--) {
-        if ((str[i] != ' ') && (str[i] != '\t') && (str[i] != '\n') &&
-            (str[i] != '\r') && (str[i] != '\t') && (str[i] != '\f') &&
-            (str[i] != '\v'))
-        {
-            str[i + 1] = '\0';
-            break;
-        }
-        if (i == 0) {
-            str[0] = '\0';
-            break;
-        }
-    }
-    return str;
-}
-
-
-char*
-bc_str_strip(char *str)
-{
-    return bc_str_lstrip(bc_str_rstrip(str));
-}
-
-
-char**
-bc_str_split(const char *str, char c, size_t max_pieces)
-{
-    if (str == NULL)
-        return NULL;
-    char **rv = bc_malloc(sizeof(char*));
-    size_t i, start = 0, count = 0;
-    for (i = 0; i < strlen(str) + 1; i++) {
-        if (str[0] == '\0')
-            break;
-        if ((str[i] == c && (!max_pieces || count + 1 < max_pieces)) || str[i] == '\0') {
-            rv = bc_realloc(rv, (count + 1) * sizeof(char*));
-            rv[count] = bc_malloc(i - start + 1);
-            memcpy(rv[count], str + start, i - start);
-            rv[count++][i - start] = '\0';
-            start = i + 1;
-        }
-    }
-    rv = bc_realloc(rv, (count + 1) * sizeof(char*));
-    rv[count] = NULL;
-    return rv;
-}
-
-
-char*
-bc_str_replace(const char *str, const char search, const char *replace)
-{
-    char **pieces = bc_str_split(str, search, 0);
-    if (pieces == NULL)
-        return NULL;
-    char* rv = bc_strv_join(pieces, replace);
-    bc_strv_free(pieces);
-    if (rv == NULL)
-        return bc_strdup(str);
-    return rv;
-}
-
-
-char*
-bc_str_find(const char *str, char c)
-{
-    // this is somewhat similar to strchr, but respects '\' escaping.
-    if (str == NULL)
-        return NULL;
-    if (c == '\0')
-        return (char*) str + strlen(str);
-    for (size_t i = 0; str[i] != '\0'; i++) {
-        if (str[i] == '\\') {
-            i++;
-            continue;
-        }
-        if (str[i] == c) {
-            return (char*) str + i;
-        }
-    }
-    return NULL;
-}
-
-
-bool
-bc_str_to_bool(const char *str)
-{
-    if (str == NULL)
-        return false;
-
-    if (0 == strcmp(str, "1"))
-        return true;
-
-    if (0 == strcasecmp(str, "y"))
-        return true;
-
-    if (0 == strcasecmp(str, "yes"))
-        return true;
-
-    if (0 == strcasecmp(str, "true"))
-        return true;
-
-    if (0 == strcasecmp(str, "on"))
-        return true;
-
-    return false;
-}
-
-
-void
-bc_strv_free(char **strv)
-{
-    if (strv == NULL)
-        return;
-    for (size_t i = 0; strv[i] != NULL; i++)
-        free(strv[i]);
-    free(strv);
-}
-
-
-char*
-bc_strv_join(char **strv, const char *separator)
-{
-    if (strv == NULL || separator == NULL)
-        return NULL;
-    bc_string_t *str = bc_string_new();
-    for (size_t i = 0; strv[i] != NULL; i++) {
-        str = bc_string_append(str, strv[i]);
-        if (strv[i + 1] != NULL)
-            str = bc_string_append(str, separator);
-    }
-    return bc_string_free(str, false);
-}
-
-
-size_t
-bc_strv_length(char **strv)
-{
-    if (strv == NULL)
-        return 0;
-    size_t i;
-    for (i = 0; strv[i] != NULL; i++);
-    return i;
-}
-
-
-bc_string_t*
-bc_string_new(void)
-{
-    bc_string_t* rv = bc_malloc(sizeof(bc_string_t));
-    rv->str = NULL;
-    rv->len = 0;
-    rv->allocated_len = 0;
-
-    // initialize with empty string
-    rv = bc_string_append(rv, "");
-
-    return rv;
-}
-
-
-char*
-bc_string_free(bc_string_t *str, bool free_str)
-{
-    if (str == NULL)
-        return NULL;
-    char *rv = NULL;
-    if (free_str)
-        free(str->str);
-    else
-        rv = str->str;
-    free(str);
-    return rv;
-}
-
-
-bc_string_t*
-bc_string_dup(bc_string_t *str)
-{
-    if (str == NULL)
-        return NULL;
-    bc_string_t* new = bc_string_new();
-    return bc_string_append_len(new, str->str, str->len);
-}
-
-
-bc_string_t*
-bc_string_append_len(bc_string_t *str, const char *suffix, size_t len)
-{
-    if (str == NULL)
-        return NULL;
-    if (suffix == NULL)
-        return str;
-    size_t old_len = str->len;
-    str->len += len;
-    if (str->len + 1 > str->allocated_len) {
-        str->allocated_len = (((str->len + 1) / BC_STRING_CHUNK_SIZE) + 1) * BC_STRING_CHUNK_SIZE;
-        str->str = bc_realloc(str->str, str->allocated_len);
-    }
-    memcpy(str->str + old_len, suffix, len);
-    str->str[str->len] = '\0';
-    return str;
-}
-
-
-bc_string_t*
-bc_string_append(bc_string_t *str, const char *suffix)
-{
-    if (str == NULL)
-        return NULL;
-    const char *my_suffix = suffix == NULL ? "" : suffix;
-    return bc_string_append_len(str, my_suffix, strlen(my_suffix));
-}
-
-
-bc_string_t*
-bc_string_append_c(bc_string_t *str, char c)
-{
-    if (str == NULL)
-        return NULL;
-    size_t old_len = str->len;
-    str->len += 1;
-    if (str->len + 1 > str->allocated_len) {
-        str->allocated_len = (((str->len + 1) / BC_STRING_CHUNK_SIZE) + 1) * BC_STRING_CHUNK_SIZE;
-        str->str = bc_realloc(str->str, str->allocated_len);
-    }
-    str->str[old_len] = c;
-    str->str[str->len] = '\0';
-    return str;
-}
-
-
-bc_string_t*
-bc_string_append_printf(bc_string_t *str, const char *format, ...)
-{
-    if (str == NULL)
-        return NULL;
-    va_list ap;
-    va_start(ap, format);
-    char *tmp = bc_strdup_vprintf(format, ap);
-    va_end(ap);
-    str = bc_string_append(str, tmp);
-    free(tmp);
-    return str;
-}
-
-
-bc_string_t*
-bc_string_append_escaped(bc_string_t *str, const char *suffix)
-{
-    if (str == NULL)
-        return NULL;
-    if (suffix == NULL)
-        return str;
-    bool escaped = false;
-    for (size_t i = 0; suffix[i] != '\0'; i++) {
-        if (suffix[i] == '\\' && !escaped) {
-            escaped = true;
-            continue;
-        }
-        escaped = false;
-        str = bc_string_append_c(str, suffix[i]);
-    }
-    return str;
-}
-
-
-bc_trie_t*
-bc_trie_new(bc_free_func_t free_func)
-{
-    bc_trie_t *trie = bc_malloc(sizeof(bc_trie_t));
-    trie->root = NULL;
-    trie->free_func = free_func;
-    return trie;
-}
-
-
-static void
-bc_trie_free_node(bc_trie_t *trie, bc_trie_node_t *node)
-{
-    if (trie == NULL || node == NULL)
-        return;
-    if (node->data != NULL && trie->free_func != NULL)
-        trie->free_func(node->data);
-    bc_trie_free_node(trie, node->next);
-    bc_trie_free_node(trie, node->child);
-    free(node);
-}
-
-
-void
-bc_trie_free(bc_trie_t *trie)
-{
-    if (trie == NULL)
-        return;
-    bc_trie_free_node(trie, trie->root);
-    free(trie);
-}
-
-
-void
-bc_trie_insert(bc_trie_t *trie, const char *key, void *data)
-{
-    if (trie == NULL || key == NULL || data == NULL)
-        return;
-
-    bc_trie_node_t *parent = NULL;
-    bc_trie_node_t *previous;
-    bc_trie_node_t *current;
-    bc_trie_node_t *tmp;
-
-    while (1) {
-
-        if (trie->root == NULL || (parent != NULL && parent->child == NULL)) {
-            current = bc_malloc(sizeof(bc_trie_node_t));
-            current->key = *key;
-            current->data = NULL;
-            current->next = NULL;
-            current->child = NULL;
-            if (trie->root == NULL)
-                trie->root = current;
-            else
-                parent->child = current;
-            parent = current;
-            goto clean;
-        }
-
-        tmp = parent == NULL ? trie->root : parent->child;
-        previous = NULL;
-
-        while (tmp != NULL && tmp->key != *key) {
-            previous = tmp;
-            tmp = tmp->next;
-        }
-
-        parent = tmp;
-
-        if (previous == NULL || parent != NULL)
-            goto clean;
-
-        current = bc_malloc(sizeof(bc_trie_node_t));
-        current->key = *key;
-        current->data = NULL;
-        current->next = NULL;
-        current->child = NULL;
-        previous->next = current;
-        parent = current;
-
-clean:
-        if (*key == '\0') {
-            if (parent->data != NULL && trie->free_func != NULL)
-                trie->free_func(parent->data);
-            parent->data = data;
-            break;
-        }
-        key++;
-    }
-}
-
-
-void*
-bc_trie_lookup(bc_trie_t *trie, const char *key)
-{
-    if (trie == NULL || trie->root == NULL || key == NULL)
-        return NULL;
-
-    bc_trie_node_t *parent = trie->root;
-    bc_trie_node_t *tmp;
-    while (1) {
-        for (tmp = parent; tmp != NULL; tmp = tmp->next) {
-
-            if (tmp->key == *key) {
-                if (tmp->key == '\0')
-                    return tmp->data;
-                parent = tmp->child;
-                break;
-            }
-        }
-        if (tmp == NULL)
-            return NULL;
-
-        if (*key == '\0')
-            break;
-        key++;
-    }
-    return NULL;
-}
-
-
-static void
-bc_trie_size_node(bc_trie_node_t *node, size_t *count)
-{
-    if (node == NULL || count == NULL)
-        return;
-
-    if (node->key == '\0')
-        (*count)++;
-
-    bc_trie_size_node(node->next, count);
-    bc_trie_size_node(node->child, count);
-}
-
-
-size_t
-bc_trie_size(bc_trie_t *trie)
-{
-    if (trie == NULL)
-        return 0;
-
-    size_t count = 0;
-    bc_trie_size_node(trie->root, &count);
-    return count;
-}
-
-
-static void
-bc_trie_foreach_node(bc_trie_node_t *node, bc_string_t *str,
-    bc_trie_foreach_func_t func, void *user_data)
-{
-    if (node == NULL || str == NULL || func == NULL)
-        return;
-
-    if (node->key == '\0')
-        func(str->str, node->data, user_data);
-
-    if (node->child != NULL) {
-        bc_string_t *child = bc_string_dup(str);
-        child = bc_string_append_c(child, node->key);
-        bc_trie_foreach_node(node->child, child, func, user_data);
-        bc_string_free(child, true);
-    }
-
-    if (node->next != NULL)
-        bc_trie_foreach_node(node->next, str, func, user_data);
-}
-
-
-void
-bc_trie_foreach(bc_trie_t *trie, bc_trie_foreach_func_t func,
-    void *user_data)
-{
-    if (trie == NULL || trie->root == NULL || func == NULL)
-        return;
-
-    bc_string_t *str = bc_string_new();
-    bc_trie_foreach_node(trie->root, str, func, user_data);
-    bc_string_free(str, true);
-}
-
-
-char*
-bc_shell_quote(const char *command)
-{
-    bc_string_t *rv = bc_string_new();
-    bc_string_append_c(rv, '\'');
-    if (command != NULL) {
-        for (size_t i = 0; i < strlen(command); i++) {
-            switch (command[i]) {
-                case '!':
-                    bc_string_append(rv, "'\\!'");
-                    break;
-                case '\'':
-                    bc_string_append(rv, "'\\''");
-                    break;
-                default:
-                    bc_string_append_c(rv, command[i]);
-            }
-        }
-    }
-    bc_string_append_c(rv, '\'');
-    return bc_string_free(rv, false);
-}
diff --git a/src/common/utils.h b/src/common/utils.h
deleted file mode 100644
index 94c3356..0000000
--- a/src/common/utils.h
+++ /dev/null
@@ -1,109 +0,0 @@
-/*
- * blogc: A blog compiler.
- * Copyright (C) 2014-2019 Rafael G. Martins <rafael@rafaelmartins.eng.br>
- *
- * This program can be distributed under the terms of the BSD License.
- * See the file LICENSE.
- */
-
-#ifndef _UTILS_H
-#define _UTILS_H
-
-#include <stddef.h>
-#include <stdarg.h>
-#include <stdbool.h>
-
-
-// memory
-
-typedef void (*bc_free_func_t) (void *ptr);
-
-void* bc_malloc(size_t size);
-void* bc_realloc(void *ptr, size_t size);
-
-
-// slist
-
-typedef struct _bc_slist_t {
-    struct _bc_slist_t *next;
-    void *data;
-} bc_slist_t;
-
-bc_slist_t* bc_slist_append(bc_slist_t *l, void *data);
-bc_slist_t* bc_slist_prepend(bc_slist_t *l, void *data);
-void bc_slist_free(bc_slist_t *l);
-void bc_slist_free_full(bc_slist_t *l, bc_free_func_t free_func);
-size_t bc_slist_length(bc_slist_t *l);
-
-
-// strfuncs
-
-char* bc_strdup(const char *s);
-char* bc_strndup(const char *s, size_t n);
-char* bc_strdup_vprintf(const char *format, va_list ap);
-char* bc_strdup_printf(const char *format, ...);
-bool bc_isspace(int c);
-bool bc_str_starts_with(const char *str, const char *prefix);
-bool bc_str_ends_with(const char *str, const char *suffix);
-char* bc_str_lstrip(char *str);
-char* bc_str_rstrip(char *str);
-char* bc_str_strip(char *str);
-char** bc_str_split(const char *str, char c, size_t max_pieces);
-char* bc_str_replace(const char *str, const char search, const char *replace);
-char* bc_str_find(const char *str, char c);
-bool bc_str_to_bool(const char *str);
-void bc_strv_free(char **strv);
-char* bc_strv_join(char **strv, const char *separator);
-size_t bc_strv_length(char **strv);
-
-
-// string
-
-typedef struct {
-    char *str;
-    size_t len;
-    size_t allocated_len;
-} bc_string_t;
-
-bc_string_t* bc_string_new(void);
-char* bc_string_free(bc_string_t *str, bool free_str);
-bc_string_t* bc_string_dup(bc_string_t *str);
-bc_string_t* bc_string_append_len(bc_string_t *str, const char *suffix, size_t len);
-bc_string_t* bc_string_append(bc_string_t *str, const char *suffix);
-bc_string_t* bc_string_append_c(bc_string_t *str, char c);
-bc_string_t* bc_string_append_printf(bc_string_t *str, const char *format, ...);
-bc_string_t* bc_string_append_escaped(bc_string_t *str, const char *suffix);
-
-
-// trie
-
-typedef struct _bc_trie_node_t {
-    char key;
-    void *data;
-    struct _bc_trie_node_t *next, *child;
-} bc_trie_node_t;
-
-struct _bc_trie_t {
-    bc_trie_node_t *root;
-    bc_free_func_t free_func;
-};
-
-typedef struct _bc_trie_t bc_trie_t;
-
-typedef void (*bc_trie_foreach_func_t)(const char *key, void *data,
-    void *user_data);
-
-bc_trie_t* bc_trie_new(bc_free_func_t free_func);
-void bc_trie_free(bc_trie_t *trie);
-void bc_trie_insert(bc_trie_t *trie, const char *key, void *data);
-void* bc_trie_lookup(bc_trie_t *trie, const char *key);
-size_t bc_trie_size(bc_trie_t *trie);
-void bc_trie_foreach(bc_trie_t *trie, bc_trie_foreach_func_t func,
-    void *user_data);
-
-
-// shell
-
-char* bc_shell_quote(const char *command);
-
-#endif /* _UTILS_H */